Large-diameter pipeline river-crossing emergency water delivery system

Abstract

The utility model relates to the technical field of river-crossing emergency water delivery and supply, in particular to a large-diameter pipeline river-crossing emergency water delivery system which comprises a pipe box culvert and two blocking structures arranged in the pipe box culvert and further comprises an emergency water delivery mechanism and a bailey bridge. The bailey bridge is arranged at the tops of the supporting piers; the emergency water conveying mechanism comprises a water conveying steel pipe, a water conveying front pipe, a submersible pump and a water pump mounting assembly, the water conveying steel pipe is located in the Bailey bridge, the two ends of the water conveying steel pipe communicate with a water conveying rear pipe and a water conveying connecting pipe correspondingly, and the water outlet end of the water conveying rear pipe extends into the pipe box culvert; one end of the water conveying connecting pipe is communicated with the water conveying front pipe, one end of the water conveying front pipe is communicated with the water outlet end of the submersible pump, and the submersible pump is located in the pipe box culvert. The water supply pipeline can be quickly disassembled and assembled, and the requirement for emergency water delivery is met; and the civil engineering construction amount is small, and damage to the natural landform is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cross-river emergency water supply and delivery, in particular to a large-diameter pipeline cross-river emergency water supply and delivery system. Background Art

[0002] At present, pipe culvert and box culvert water transfer projects are widely used in northern urban areas with complex geological structures and limited arable land. Box culvert water transfer projects are convenient for crossing roads, rivers and hills; they have the advantages of saving arable land, protecting water quality, reducing evaporation and leakage losses along the way, and not freezing in winter, which is conducive to ensuring normal water transfer. When pipe culverts and box culverts are damaged by extreme natural disasters, the water transfer of pipe culverts and box culverts is threatened, and the damaged points of pipe and box culverts are continuously affected by natural disasters, and there are no immediate conditions for repair, it is necessary to build an emergency water transfer project to ensure normal water transfer.

[0003] The existing technology usually adopts the cofferdam diversion and buried pipe method to achieve the purpose of emergency water delivery. However, this method has the disadvantage of a large amount of civil construction. Not only does the construction take a long time, but it also causes serious damage to the natural landscape. At the same time, it also has the disadvantage of not being able to meet the requirements of rapid emergency water delivery. Summary of the invention

[0004] The utility model provides a large-diameter pipeline cross-river emergency water delivery system to solve the problems that the existing cofferdam diversion and pipe burying methods cannot quickly meet the emergency water delivery requirements and have a large amount of civil construction. The device can quickly realize the installation of water supply pipelines, meet the requirements of emergency water delivery, and reduce the impact on the damaged points of the pipe box culvert; and the civil construction amount is small, which reduces the damage to the natural landform.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a large-diameter pipeline cross-river emergency water delivery system, including a pipe box culvert and two blocking structures arranged inside the pipe box culvert, and also including an emergency water delivery mechanism and a Bailey bridge. The top of the pipe box culvert is provided with a supporting pier, and the Bailey bridge is arranged on the top of the supporting pier. The two blocking structures are used to block the inlet and outlet sides of the damaged point of the pipe box culvert, providing construction conditions for the construction of the emergency water delivery mechanism; the supporting pier plays a supporting role for the Bailey bridge.

[0006] The emergency water delivery mechanism includes a water delivery steel pipe, a water delivery front pipe, a submersible pump and a water pump installation assembly. The water delivery steel pipe is located inside the Bailey bridge. The two ends of the water delivery steel pipe are respectively connected to the water delivery rear pipe and the water delivery connecting pipe. The water outlet end of the water delivery rear pipe extends to the inside of the pipe box culvert. One end of the water delivery connecting pipe is connected to the water delivery front pipe, and one end of the water delivery front pipe is connected to the water outlet end of the submersible pump. The submersible pump is located inside the pipe box culvert. The Bailey bridge facilitates the water delivery steel pipe to quickly cross the damaged point of the pipe box culvert. The submersible pump can deliver water from one side of one blocking structure to the other side of the blocking mechanism to achieve the purpose of emergency water delivery.

[0007] The water pump installation assembly includes a cantilever crane 1 and a water pump track. The steel wire rope of the cantilever crane 1 is connected to the submersible pump. The water pump track is located inside the pipe box culvert, and the submersible pump is arranged on the water pump track. The cantilever crane 1 is used to drive the submersible pump to do lifting movement. The water pump track facilitates the submersible pump to do lifting movement, so as to achieve the effect of facilitating the submersible pump to enter or move out of the water.

[0008] Furthermore, an intermediate pier is provided below the middle of the Bailey bridge, a steel pipe support is provided on the top of the intermediate pier, and the Bailey bridge is located on the top of the steel pipe support. The steel pipe support on the top of the intermediate pier supports the Bailey bridge, so as to achieve the purpose of building the Bailey bridge across the river, so that the water delivery steel pipe can quickly cross the damaged point of the pipe box culvert.

[0009] Furthermore, both ends of the water delivery steel pipe are connected with a corrugated compensator, and the two ends of the water delivery steel pipe are respectively connected with the water delivery rear pipe and the water delivery connecting pipe through the corrugated compensator. The effective expansion and contraction of the corrugated pipe of the corrugated compensator can absorb the changes caused by thermal expansion and contraction of the pipeline of the emergency water delivery mechanism.

[0010] Furthermore, a telescopic joint is provided between the water delivery front pipe and the water delivery connecting pipe, and the two ends of the telescopic joint are respectively connected to the water delivery front pipe and the water delivery connecting pipe. The telescopic joint can reduce the influence of vibration on the water delivery front pipe and the water delivery connecting pipe.

[0011] Furthermore, a check valve is provided at the connection between the water delivery front pipe and the expansion joint, an electric butterfly valve is provided at the connection between the water delivery connecting pipe and the expansion joint, and an exhaust valve is provided on the water delivery steel pipe. The check valve and the electric butterfly valve can prevent water hammer effect and control flow rate.

[0012] Furthermore, a plurality of anchor piers are arranged on the top of the box culvert; the number of the supporting piers is two, and the top of the supporting piers is also provided with anchor piers, and the two ends of the Bailey bridge are respectively arranged on the top of the anchor piers on the two supporting piers. The anchor piers can reduce the water hammer effect and vibration, and the anchor piers on the supporting piers play a supporting role for the Bailey bridge.

[0013] Further, a track crossbar is fixedly arranged at the lower part of the water pump track, and a shock absorber is arranged at the bottom of the water pump track. The track crossbar plays a role in supporting and limiting the submersible pump, and the shock absorber can reduce the vibration during the operation of the submersible pump.

[0014] Further, the water pump track includes a track cross beam and two track vertical beams. A plurality of the track cross beams are arranged at intervals between the two track vertical beams. The cross sections of the track cross beam and the track vertical beam are both in a "U" - shaped structure.

[0015] Further, a roller bracket is arranged on one side of the submersible pump, and a plurality of rollers are arranged on the roller bracket. The rollers are located within the track vertical beam. Through the cooperation of the rollers and the track vertical beam, the cantilever crane I can drive the submersible pump to perform lifting motion.

[0016] Further, a cantilever crane II is also arranged on the pipe culvert box, and the cantilever crane II is located above the water outlet end of the water conveyance pipe after water supply.

[0017] Through the above technical solutions, the beneficial effects of the present utility model are as follows:

[0018] The structure of the present utility model is reasonable, safe and reliable, and has strong applicability. By laying the emergency water conveyance mechanism across the river with a Bailey bridge, compared with the cofferdam diversion and buried pipe method, it can quickly install the water supply pipeline, meet the requirements of emergency water conveyance, and reduce the impact on the damaged point of the pipe culvert box; moreover, the amount of civil engineering construction is small, reducing the damage to the natural landform; at the same time, it meets the requirements of quick disassembly and assembly of the emergency water conveyance mechanism, and is also applicable to other emergency water conveyance projects affected by geological disasters.

[0019] The Bailey bridge of the present utility model is used as a pipeline cross - river support structure, which has a stable structure and quick installation, facilitating the quick crossing of the damaged point of the pipe culvert box by the water conveyance steel pipe. The two support piers and the steel pipe brackets on the top of the middle pier support the Bailey bridge. By laying the cross - river pipeline through the Bailey bridge, it is applicable to large - diameter pipelines. While realizing large - flow water conveyance, it also improves the stability of the device.

[0020] The present utility model can reduce the water hammer effect and vibration through the anchor block; through the check valve and the electric butterfly valve, it can prevent the water hammer effect and control the flow rate.

[0021] The cantilever crane I of the present utility model is used to drive the submersible pump to perform lifting motion, achieving the effect of sending the submersible pump into the water or removing the submersible pump from the water; among them, through the cooperation of the rollers and the track vertical beam of the water pump track, the submersible pump can perform lifting motion. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of a large - diameter pipeline cross - river emergency water conveyance system of the present utility model;

[0023] Figure 2 It is a structural schematic diagram of a water pump track of the utility model.

[0024] The numbers in the attached drawings are: 1 is a pipe box culvert, 2 is a cantilever crane one, 3 is a cantilever crane two, 4 is a water pump track, 401 is a track vertical beam, 402 is a track cross beam, 5 is a track cross bar, 6 is a shock absorber, 7 is a submersible pump, 8 is a water front pipe, 9 is a check valve, 10 is an expansion joint, 11 is an electric butterfly valve, 12 is a water connecting pipe, 13 is a bellows compensator, 14 is a water steel pipe, 15 is an exhaust valve, 16 is a water rear pipe, 17 is a town pier, 18 is a supporting pier, 19 is an intermediate pier, 20 is a steel pipe bracket, 21 is a Bailey bridge, and 22 is a blocking structure. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0026] like Figure 1-2 As shown, a large-diameter pipeline cross-river emergency water delivery system includes a pipe box culvert 1 and two blocking structures 22 arranged inside the pipe box culvert 1, and also includes an emergency water delivery mechanism and a Bailey bridge 21. The top of the pipe box culvert 1 is provided with a supporting pier 18, and the Bailey bridge 21 is arranged on the top of the supporting pier 18. In this embodiment, the blocking structure 22 can be a gate or a cement wall. When the blocking structure 22 is a gate and blocks the inlet and outlet sides of the damaged point of the pipe box culvert, it is only necessary to close the gate; when the blocking structure 22 is a cement wall and blocks the inlet and outlet sides of the damaged point of the pipe box culvert, the top of the pipe box culvert is cut open on the inlet and outlet sides of the damaged point of the pipe box culvert, and then a cement wall is constructed. The blocking structure 22 provides construction conditions for the construction of the emergency water delivery mechanism, and the Bailey bridge 21 is supported by the supporting pier 18, so that the water delivery steel pipe 14 can quickly cross the damaged point of the pipe box culvert.

[0027] Bailey Bridge 21, as an important component supporting the pipeline of the emergency water supply mechanism, will directly affect the structural stability and service life of the cross-river pipe bridge. Bailey Bridge 21 has the advantages of simple structure, easy assembly and disassembly; Bailey Bridge 21 is mainly used in emergency transportation support such as military transportation, disaster relief, etc. Bailey Bridge 21 consists of four parts: truss main beam, bridge deck system, connection system, and structural foundation. As a pipeline cross-river support structure, Bailey Bridge 21 has a stable structure and is quick to install. It can quickly erect large-diameter pipelines to transport pressurized water supply.

[0028] The emergency water delivery mechanism includes a water delivery steel pipe 14, a water delivery front pipe 8, a submersible pump 7 and a water pump installation assembly. The water delivery steel pipe 14 is located inside the Bailey bridge 21. The two ends of the water delivery steel pipe 14 are respectively connected with a water delivery rear pipe 16 and a water delivery connecting pipe 12. The water outlet end of the water delivery rear pipe 16 extends to the inside of the pipe box culvert 1. One end of the water delivery connecting pipe 12 is connected with the water delivery front pipe 8. One end of the water delivery front pipe 8 is connected with the water outlet end of the submersible pump 7. The submersible pump 7 is located inside the pipe box culvert 1. In this embodiment, the water delivery rear pipe 16 and the water delivery connecting pipe 12 are bent and changed direction by a 30° elbow. The water delivery rear pipe 16 also changes the water delivery direction by a 90° elbow. The water delivery front pipe 8 changes the water delivery direction by a 90° elbow. The submersible pump 7 is located outside one of the blocking structures 22, and the water outlet end of the water delivery rear pipe 16 is located outside the other blocking structure 22.

[0029] The water pump installation assembly includes a cantilever crane 2 and a water pump track 4, the steel wire rope of the cantilever crane 2 is connected to the submersible pump 7, the water pump track 4 is located inside the pipe box culvert 1, and the submersible pump 7 is arranged on the water pump track 4. In this embodiment, the submersible pump 7 is hoisted by the cantilever crane 2 to send the submersible pump 7 into the water or remove it from the water, and the water pump track 4 is vertically installed inside the pipe box culvert 1, and the water pump track 4 facilitates the movement of the submersible pump 7.

[0030] An intermediate pier 19 is provided below the middle of the Bailey bridge 21, a steel pipe support 20 is provided on the top of the intermediate pier 19, and the Bailey bridge 21 is located on the top of the steel pipe support 20. In this embodiment, the intermediate end 19 is located at the top of the pipe box culvert, and the Bailey bridge 21 is supported by two supporting piers 18 and the intermediate pier 19. The Bailey bridge 21 facilitates the water delivery steel pipe 14 to quickly cross the damaged point of the pipe box culvert, and the Bailey bridge 21 plays a supporting role for the water delivery steel pipe 14.

[0031] Both ends of the water delivery steel pipe 14 are connected with a corrugated compensator 13, and the two ends of the water delivery steel pipe 14 are respectively connected with the water delivery rear pipe 16 and the water delivery connecting pipe 12 through the corrugated compensator 13. Through the effective expansion and contraction of the corrugated pipe of the corrugated compensator 13, the changes caused by thermal expansion and contraction of the pipeline of the emergency water delivery mechanism are absorbed, and the axial, lateral and angular displacements of the pipeline are compensated, which plays a role in reducing noise and vibration.

[0032] A telescopic joint 10 is provided between the water delivery front pipe 8 and the water delivery connecting pipe 12, and the two ends of the telescopic joint 10 are respectively connected to the water delivery front pipe 8 and the water delivery connecting pipe 12. In this embodiment, the telescopic joint 10 and the corrugated compensator 13 can reduce the impact of vibration on the water delivery front pipe 8 and the water delivery connecting pipe 12.

[0033] A check valve 9 is provided at the connection between the pre-water conveyance pipe 8 and the expansion joint 10, and an electric butterfly valve 11 is provided at the connection between the water conveyance connecting pipe 12 and the expansion joint 10; an air release valve 15 is provided on the water conveyance steel pipe 14. In this embodiment, the check valve 9 and the electric butterfly valve 11 can prevent water hammer effect and control the flow rate, and the air release valve 15 is used to exhaust the gas in the pipeline to prevent the accumulation of gas in the pipeline from affecting the normal water conveyance.

[0034] In this embodiment, a plurality of anchor blocks 17 are arranged on the top of the pipe culvert 1; the number of the support piers 18 is two, and anchor blocks 17 are also provided on the tops of the support piers 18. The two ends of the Bailey bridge 21 are respectively arranged on the tops of the anchor blocks 17 on the two support piers 18. The number of the anchor blocks 17 on the top of the pipe culvert 1 is 5. One of the anchor blocks 17 supports the pre-water conveyance pipe 8, two anchor blocks 17 support the water conveyance connecting pipe 12, and the other two anchor blocks 17 support the post-water conveyance pipe 16. An anchor block 17 is also installed at the bottom of the water outlet end of the post-water conveyance pipe 16, and an anchor block 17 is also installed on the outer side wall of the blocking structure 22 close to the post-water conveyance pipe 16. In actual engineering applications, the number and positions of the anchor blocks 17 and the support piers 18 can be set accordingly according to the actual engineering needs.

[0035] A track cross bar 5 is fixedly arranged under the water pump track 4, and a shock absorber 6 is arranged at the bottom of the water pump track 4. In this embodiment, the track cross bar 5 plays a role in supporting and limiting the submersible pump 7, and the shock absorber 6 can reduce the vibration generated during the operation of the submersible pump 7.

[0036] The water pump track 4 includes a track cross beam 402 and two track vertical beams 401. A plurality of the track cross beams 402 are arranged at intervals between the two track vertical beams 401. The cross sections of the track cross beam 402 and the track vertical beam 401 are both in a "U" - shaped structure. In this embodiment, both the track cross beam 402 and the track vertical beam 401 are channel steels, and the number of the track cross beams 402 is seven.

[0037] A roller support is arranged on one side of the submersible pump 7, and a plurality of rollers are arranged on the roller support, and the rollers are located within the track vertical beam 401. In this embodiment, rollers are installed on both sides of the roller support of the submersible pump 7, and three rollers are installed on each side of the roller support.

[0038] An overhead crane two 3 is also provided on the pipe culvert 1, and the overhead crane two 3 is located above the water outlet end of the post-water conveyance pipe 16.

[0039] When the utility model is used, when the pipe culvert and the box culvert are damaged by extreme natural disasters, the upstream water is closed by the control valve at the damaged point of the pipe box culvert, and then the top of the pipe box culvert is cut open at the inlet and outlet sides of the damaged point of the pipe box culvert, and the plugging structure 22 is used to plug the inlet and outlet sides of the damaged point of the pipe box culvert, so as to provide construction conditions for the subsequent construction of emergency water supply mechanisms.

[0040] While the excavation and sealing of the box culvert is being carried out, the construction of the Bailey bridge 21 across the river is carried out. First, the middle pier 19 is cast and the steel pipe support 20 is installed on the top of the middle pier 19. Then, according to the required length of the Bailey bridge 21, two supporting piers 18 are constructed, and the anchor pier 17 is installed on the top of the supporting pier 19 and the top of the box culvert. Considering the requirements of emergency water supply, the span and load of the Bailey bridge 21 of a suitable type are constructed.

[0041] After the Bailey bridge 21 is built, the pipeline of the emergency water supply mechanism is assembled; after the inlet and outlet sides of the damaged point of the pipe box culvert are blocked, the water level on the upstream side drops to a lower level, and the water pump track 4 is installed by a cantilever crane 2, and then the submersible pump 7 is hoisted and sent into the water. The submersible pump 7 moves on the water pump track 4, and the water outlet end of the submersible pump 7 is connected to the water supply front pipe 8; the water supply front pipe 8 is connected to the water supply connecting pipe 12 through a check valve 9, an expansion joint 10 and an electric butterfly valve 11, and the water supply connecting pipe 12 is connected to the water supply steel pipe 14 through a corrugated compensator 13. The water supply steel pipe 14 is installed inside the Bailey bridge 21, and an exhaust valve 15 is installed on the water supply steel pipe 14. The water supply steel pipe 14 is connected to the water supply rear pipe 16 through the corrugated compensator 13, and the water outlet end of the water supply rear pipe 16 extends to the inside of the pipe box culvert.

[0042] Turn on the submersible pump 7 and the electric butterfly valve 11. The submersible pump 7 provides power for water transportation. The water on the upstream side is transported to the water rear pipe 16 through the water front pipe 8, the water connecting pipe 12 and the water steel pipe 14 in sequence, and then discharged to the downstream side from the water outlet end of the water rear pipe 16, thereby completing the purpose of emergency water transportation.

[0043] The embodiments described above are only preferred embodiments of the utility model and do not limit the scope of implementation of the utility model. Therefore, all equivalent changes or modifications made according to the technical solutions described in the patent scope of the utility model should be included in the scope of the patent application of the utility model.

Claims

1. A large-diameter pipeline cross-river emergency water delivery system, comprising a pipe box culvert (1) and two blocking structures (22) arranged inside the pipe box culvert (1), characterized in that: It further includes an emergency water conveyance mechanism and a Bailey bridge (21). Support piers (18) are arranged on the top of the pipe culvert (1), and the Bailey bridge (21) is arranged on the top of the support piers (18); The emergency water conveyance mechanism includes a water conveyance steel pipe (14), a pre-water conveyance pipe (8), a submersible pump (7) and a pump installation assembly. The water conveyance steel pipe (14) is located inside the Bailey bridge (21). The two ends of the water conveyance steel pipe (14) are respectively communicated with a post-water conveyance pipe (16) and a water conveyance connecting pipe (12). The water outlet end of the post-water conveyance pipe (16) extends into the interior of the pipe culvert (1); One end of the water conveyance connecting pipe (12) is communicated with the pre-water conveyance pipe (8), and one end of the pre-water conveyance pipe (8) is communicated with the water outlet end of the submersible pump (7). The submersible pump (7) is located inside the pipe culvert (1); The pump installation assembly includes a first cantilever crane (2) and a pump track (4). The steel wire rope of the first cantilever crane (2) is connected to the submersible pump (7). The pump track (4) is located inside the pipe culvert (1), and the submersible pump (7) is arranged on the pump track (4).

2. A large-diameter pipeline cross-river emergency water delivery system according to claim 1, characterized in that: An intermediate pier (19) is arranged below the middle of the Bailey bridge (21). A steel pipe support (20) is arranged on the top of the intermediate pier (19), and the Bailey bridge (21) is located on the top of the steel pipe support (20).

3. The large-diameter pipeline cross-river emergency water delivery system according to claim 1 is characterized in that: Both ends of the water conveyance steel pipe (14) are communicated with a bellows compensator (13). The two ends of the water conveyance steel pipe (14) are respectively communicated with the post-water conveyance pipe (16) and the water conveyance connecting pipe (12) through the bellows compensator (13).

4. The large-diameter pipeline cross-river emergency water delivery system according to claim 1 is characterized in that: An expansion joint (10) is arranged between the pre-water conveyance pipe (8) and the water conveyance connecting pipe (12). The two ends of the expansion joint (10) are respectively communicated with the pre-water conveyance pipe (8) and the water conveyance connecting pipe (12).

5. A large-diameter pipeline cross-river emergency water delivery system according to claim 4, characterized in that: A check valve (9) is arranged at the connection between the pre-water conveyance pipe (8) and the expansion joint (10), and an electric butterfly valve (11) is arranged at the connection between the water conveyance connecting pipe (12) and the expansion joint (10); An exhaust valve (15) is arranged on the water conveyance steel pipe (14).

6. The large-diameter pipeline cross-river emergency water delivery system according to claim 1 is characterized in that: A plurality of anchor piers (17) are arranged on the top of the pipe culvert (1); The number of the support piers (18) is two, and anchor piers (17) are also arranged on the tops of the support piers (18). The two ends of the Bailey bridge (21) are respectively arranged on the tops of the anchor piers (17) on the two support piers (18).

7. The large-diameter pipeline cross-river emergency water delivery system according to claim 1 is characterized in that: A track cross baffle (5) is fixedly arranged below the pump track (4), and a shock absorber (6) is arranged at the bottom of the pump track (4).

8. A large-diameter pipeline cross-river emergency water delivery system according to claim 7, characterized in that: The pump track (4) includes a track cross beam (402) and two track vertical beams (401). A plurality of the track cross beams (402) are arranged at intervals between the two track vertical beams (401). The cross sections of the track cross beam (402) and the track vertical beam (401) are both in a "U" - shaped structure.

9. A large-diameter pipeline cross-river emergency water delivery system according to claim 8, characterized in that: A roller support is arranged on one side of the submersible pump (7), and a plurality of rollers are arranged on the roller support. The rollers are located inside the track vertical beam (401).

10. The large-diameter pipeline cross-river emergency water delivery system according to claim 1 is characterized in that: The pipe box culvert (1) is also provided with a second cantilever crane (3), and the second cantilever crane (3) is located above the water outlet end of the rear water delivery pipe (16).

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