Underground buried water pumping structure

Abstract

The utility model discloses an underground buried type water pumping structure, belongs to the technical field of water pumping structures, and can solve the problem that an existing water pumping structure is inconvenient to arrange in complex terrains and environments. The structure comprises a water collecting well buried underground; the submersible pump is arranged in the water collecting well; the pump room is arranged above the water collecting well, the top of the pump room is lower than the ground, and a water conveying pipe used for conveying water outwards is arranged in the pump room; the top end of the vertical shaft is communicated with the pump room, and the bottom end is communicated with the water-collecting well; the bottom end of the water outlet pipe is communicated with the water outlet of the submersible pump, and the top end of the water outlet pipe is communicated with the water inlet of the water conveying pipe. The water pump is used for pumping water.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of underground buried pumping structure, belong to pumping structure technical field. BACKGROUND

[0002] Pumping structure is widely used in water supply engineering and drainage engineering. The existing pumping structure usually needs to be laid on the ground water collector and pump house, but in the engineering area of complex terrain and environment, the construction difficulty is greater to lay water collector and pump house on the ground, such as when laying on the steep mountain slope, large-scale excavation operation is often needed to high slope, and the construction difficulty leads to higher construction cost. At the same time, water collector and pump house need to occupy a certain area of land, which brings a certain degree of disturbance to the ground environment even destruction. Therefore, it is necessary to reasonably improve the existing pumping structure. SUMMARY

[0003] The utility model provides a kind of underground buried pumping structure, can solve the problem of existing pumping structure not being convenient in complex terrain and environment.

[0004] The utility model provides a kind of underground buried pumping structure, the structure includes:

[0005] Water collector, buried in underground;

[0006] Submersible pump, is set in the water collector;

[0007] Pump house, is set in the upper of the water collector, and its top is lower than ground, and it is equipped with water delivery pipe for exporting water outside in it;

[0008] Shaft, its top end is communicated with the pump house, and its bottom end is communicated with the water collector;

[0009] Water outlet pipe, is set in the shaft, and its bottom end is communicated with the water outlet of the submersible pump, and its top end is communicated with the water inlet of the water delivery pipe.

[0010] Optionally, the submersible pump and the water outlet pipe are multiple;Multiple submersible pumps and multiple water outlet pipes are one-to-one corresponding.

[0011] Optionally, the shaft is multiple, and each shaft corresponds at least one submersible pump and one water outlet pipe.

[0012] Optionally, the structure further includes:

[0013] Concrete layer, is filled between the water outlet pipe and the inner wall of the shaft.

[0014] Optionally, the concrete layer has multiple induction holes, and the induction hole is used to limit the cracking state of the concrete layer.

[0015] Optionally, the structure further comprises:

[0016] A bottom beam is arranged at the bottom end of the shaft and is connected with the inner wall of the shaft; the water outlet pipe penetrates through the bottom beam; and the concrete layer is connected on the bottom beam.

[0017] Optionally, the friction coefficient of the inner wall of the shaft is greater than a preset friction coefficient.

[0018] Optionally, the structure further comprises:

[0019] An equipment transportation channel vertically penetrates through the concrete layer and the bottom beam, and has a top end communicating with the pump house and a bottom end communicating with the water collecting well.

[0020] Optionally, the structure further comprises:

[0021] A traffic channel has one end communicating with the pump house and the other end communicating with the ground.

[0022] Optionally, the submersible pump is a deep-well submersible pump.

[0023] The beneficial effects of the present application include:

[0024] The present application scientifically and rationally arranges the water collecting well and the pump house underground, fully utilizes the underground space, reduces the workload of ground construction, reduces the construction cost, and reduces the influence on the ground environment, so as to adapt to the layout conditions of complex terrain and environment.

[0025] The water pumping structure region of the present application is rationally divided, the functions of each region are clear, the water collecting well and the pump house are isolated by the shaft, the pump house is kept dry, and the management and maintenance of the facilities and equipment are facilitated. Meanwhile, one or more shafts can be arranged in the present embodiment, and multiple submersible pumps can be arranged in each shaft, which is beneficial to fully and efficiently utilize the space. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 A longitudinal sectional view of the underground buried water pumping structure provided by the present application embodiment is shown in the figure;

[0027] Fig. 2 A longitudinal sectional view of the underground buried water pumping structure provided by the present application embodiment is shown in the figure;

[0028] Fig. 3 A planar layout view of the pump house provided by the present application embodiment is shown in the figure;

[0029] Fig. 4 A transverse sectional view of the shaft provided by the present application embodiment is shown in the figure.

[0030] REFERENCE NUMERALS:

[0031] 1-pump house; 2-vertical shaft; 3-catch basin; 4-submersible pump; 5-adaptor joint; 6-equipment transportation passage; 7-bottom beam; 8-water outlet pipe; 9-traffic passage; 10-catch basin corridor. DETAILED DESCRIPTION

[0032] The utility model will be described in detail below in combination with embodiments, but the utility model is not limited to these embodiments.

[0033] The utility model embodiment provides a kind of underground buried pumping structure, as shown in Figs. 1 to 4 The structure includes:

[0034] Catch basin 3 is buried in underground;

[0035] Submersible pump 4 is arranged in catch basin 3;

[0036] Pump house 1 is arranged above catch basin 3, and its top is lower than ground, and it is equipped with water delivery pipe for water delivery outside;

[0037] Vertical shaft 2, its top end is communicated with pump house 1, and its bottom end is communicated with catch basin 3;

[0038] Water outlet pipe 8 is arranged in vertical shaft 2, and its bottom end is communicated with the water outlet of submersible pump 4, and its top end is communicated with the water inlet of water delivery pipe.

[0039] Specifically, submersible pump 4 can be deep well submersible pump.

[0040] Specifically, submersible pump 4 and water outlet pipe 8 can be multiple;Multiple submersible pumps 4 and multiple water outlet pipes 8 are one-to-one corresponding.

[0041] Specifically, the embodiment determines the number of submersible pumps 4 required by pumping structure according to the design flow and lift of water supply project or drainage project, and determines the setting elevation of catch basin 3 and pump house 1 according to the elevation of water source and the elevation of water delivery pipe. Catch basin 3 and pump house 1 are communicated by vertical shaft 2. In practice, the distance between catch basin 3 and pump house 1 and ground can be determined according to actual topography and geology, to ensure that pumping structure is set in the position with reliable underground geological conditions.

[0042] Specifically, vertical shaft 2 can be multiple, and each vertical shaft 2 corresponds to at least one submersible pump 4 and one water outlet pipe 8. By embedding water outlet pipe 8 in vertical shaft 2, the running noise is greatly reduced, which is conducive to reducing the influence on environment.

[0043] Specifically, the height of the shaft 2 is positively correlated with the required lift of the project. The higher the required lift of the project, the higher the height of the shaft 2. The shaft 2 can be constructed by a reverse drilling method, which has an advantage of convenient construction, especially for a deep shaft 2 with a diameter D of about 3.0 m. The water outlet pipe 8 is pre-buried in the shaft 2, and two or three water outlet pipes 8 can be pre-buried in each shaft 2. The diameter d of the pre-buried water outlet pipe 8 should not be too small. In practice, the diameter d of the water outlet pipe 8 can be selected according to the selection of the submersible pump 4 and the hydraulic calculation. If the diameter d is below 300 mm, the diameter d can be appropriately enlarged to facilitate construction and control the hole inclination, and the diameter d of 400 mm to 500 mm is appropriate. After the diameter d is enlarged, the water head loss in the water outlet pipe 8 is reduced, and therefore it is necessary to recalculate whether the corresponding lift and flow rate of the submersible pump 4 meet the design requirements.

[0044] Specifically, the water outlet pipe 8 is in communication with the water outlet of the submersible pump 4 and the water inlet of the water delivery pipe through the adapter joint 5, respectively.

[0045] Specifically, the structure can further include:

[0046] A concrete layer filled between the water outlet pipe 8 and the inner wall of the shaft 2.

[0047] After the shaft 2 is pre-buried with the water outlet pipe 8, the concrete layer is backfilled between the water outlet pipe 8 and the inner wall of the shaft 2 to achieve the purpose of fixing the water outlet pipe 8 and ensuring the safe operation of the water outlet pipe 8.

[0048] Specifically, the backfilled concrete is plain concrete.

[0049] Specifically, the concrete layer has a plurality of induced holes for limiting the cracking state of the concrete layer.

[0050] Since the concrete will shrink during the solidification process, a gap will be generated between the concrete layer and the inner wall of the shaft 2 after the concrete layer is solidified. The presence of the gap reduces the friction between the concrete layer and the inner wall of the shaft 2, and the reduced friction may not be enough to bear the downward gravity of the concrete layer, resulting in an increase in safety risk. In order to reduce the safety risk, the gap can be filled by a contact grouting method to increase the friction. In this embodiment, in order to shorten the construction period and simplify the construction difficulty, the contact grouting method is not used to fill the gap, but the method of opening a plurality of induced holes in the concrete layer is used to reduce the safety risk. By opening a plurality of induced holes, on the one hand, the weight of the concrete layer can be reduced, and on the other hand, the direction of the cracks can be induced and guided, so that the cracks of the concrete layer are along the edges of the induced holes, so as to reduce the cracks on the contact surface between the concrete layer and the shaft 2, thereby avoiding the excessive reduction of the contact area between the concrete layer and the shaft 2. In practice, the number and position of the induced holes can be specifically set according to the actual situation of the project and the characteristics of the concrete.

[0051] Specifically, the inner wall of the shaft 2 has a friction coefficient greater than a preset friction coefficient.

[0052] To further increase the friction between the concrete layer and the inner wall of the shaft 2, the embodiment further needs to perform a chiseling treatment on the surrounding rock of the shaft 2 before backfilling the concrete, so as to increase the roughness and the friction coefficient of the inner wall of the shaft 2, thereby increasing the friction.

[0053] Specifically, the structure can further include:

[0054] The bottom beam 7 is arranged at the bottom end of the shaft 2 and is connected with the inner wall of the shaft 2; the water outlet pipe 8 penetrates through the bottom beam 7; and the concrete layer is connected to the bottom beam 7.

[0055] The embodiment adopts a layered pouring method to backfill the concrete in the shaft 2. When the backfilled concrete does not reach its design strength after pouring, the friction between the concrete and the inner wall of the shaft 2 has not yet been fully formed, and at this time the friction is still insufficient to bear the weight of the concrete. In order to ensure construction safety, the embodiment sets the bottom beam 7 at the bottom end of the shaft 2. The bottom beam 7 is made of reinforced concrete and can bear the weight of the first 3-5 warehouses of backfilled concrete during construction. If necessary, the embodiment can also set an anchor rod at the bottom end of the shaft 2, the anchor rod is connected with the bottom beam 7, and the two together bear the weight of the concrete during the early stage of construction, ensuring the safety of the project. In practice, the strength of the poured bottom beam 7 should reach 80% of its design strength before the first warehouse of backfilled concrete is poured.

[0056] Specifically, the structure can further include:

[0057] The equipment transportation channel 6 vertically penetrates through the concrete layer and the bottom beam 7, and its top end is connected with the pump house 1 and its bottom end is connected with the water collecting well 3.

[0058] The equipment transportation channel 6 connects the pump house 1 and the water collecting well 3, and a hoisting device can be arranged in the pump house 1. During maintenance, the hoisting device can be used to hoist the motor and other equipment of the submersible pump 4 in the water collecting well 3 into the pump house 1 for maintenance, or transported to the ground through the pump house 1 for maintenance.

[0059] Specifically, the structure can further include:

[0060] The traffic channel 9 has one end connected with the pump house 1 and the other end connected with the ground.

[0061] The traffic channel 9 connects the pump house 1 with the ground, facilitating the personnel and equipment to enter and exit the pump house 1. The traffic channel 9 can be provided in multiple numbers, and the embodiment provides one traffic channel 9 on each side of the pump house 1.

[0062] Specifically, the structure can further include:

[0063] A water collecting gallery 10, one end of which is communicated with the water collecting well 3 and the other end of which is communicated with the water source, is used to lead water from the water source to the water collecting well 3.

[0064] The embodiment can adapt to the layout conditions of complex terrain and environment by scientifically and rationally arranging the water collecting well 3 and the pump house 1 underground, fully utilizing the underground space, reducing the workload of ground construction, lowering the construction cost, and reducing the influence on the ground environment.

[0065] The water pumping structure region of the embodiment is rationally divided, and the functions of each region are clear. The water collecting well 3 and the pump house 1 are separated by the shaft 2, and the pump house 1 is kept dry, which is convenient for the management and maintenance of the facilities and equipment. Meanwhile, one or more shafts 2 can be arranged in the embodiment, and multiple submersible pumps 4 can be arranged in each shaft 2, which is beneficial to fully and efficiently utilize the space.

[0066] The above is only several embodiments of the present application, and does not limit the present application in any form. Although the present application is disclosed with the preferred embodiments, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the disclosed technical contents without departing from the scope of the technical scheme of the present application, which is equivalent to the equivalent embodiments, and belongs to the scope of the technical scheme.

Claims

1. An underground buried pumping structure, characterized by, The structure comprises: a water collecting well buried in the ground; a submersible pump arranged in the water collecting well; a pump house arranged above the water collecting well and having a top lower than the ground surface, and a water delivery pipe arranged in the pump house for delivering water outside; a vertical shaft having a top end communicating with the pump house and a bottom end communicating with the water collecting well; a water outlet pipe arranged in the vertical shaft and having a bottom end communicating with a water outlet of the submersible pump and a top end communicating with a water inlet of the water delivery pipe.

2. The structure of claim 1, wherein The submersible pump and the water outlet pipe are both multiple; the multiple submersible pumps and the multiple water outlet pipes are one-to-one corresponding.

3. The structure of claim 2, wherein The vertical shaft is multiple, and each vertical shaft corresponds to at least one submersible pump and one water outlet pipe.

4. The structure of claim 1, wherein The structure further comprises: a concrete layer filled between the water outlet pipe and the inner wall of the vertical shaft.

5. The structure of claim 4, wherein The concrete layer has multiple inducing holes for limiting the cracking state of the concrete layer.

6. The structure of claim 4, wherein The structure further comprises: a bottom beam arranged at the bottom end of the vertical shaft and connected with the inner wall of the vertical shaft; the water outlet pipe penetrates through the bottom beam; and the concrete layer is connected on the bottom beam.

7. The structure of claim 4, wherein The friction coefficient of the inner wall of the vertical shaft is greater than a preset friction coefficient.

8. The structure of claim 6, wherein The structure further comprises: an equipment transportation channel vertically penetrating through the concrete layer and the bottom beam, and having a top end communicating with the pump house and a bottom end communicating with the water collecting well.

9. The structure of claim 1, wherein The structure further comprises: a traffic channel having one end communicating with the pump house and the other end communicating with the ground surface.

10. The structure of any one of claims 1 to 9, wherein, The submersible pump is a deep well submersible pump.

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