Vacuum pump water pumping system for guaranteeing dryness of foundation construction surface

Abstract

The utility model discloses a vacuum pump water pumping system for guaranteeing dryness of a foundation construction surface, belongs to the technical field of foundation construction, and solves the problem that the foundation construction surface cannot be kept dry in the foundation construction process in an existing water-rich area. The device comprises a vacuum pump cluster, a drainage port of the vacuum pump cluster is communicated with a drainage pipe, a water pumping port of the vacuum pump cluster is communicated with one end of a connecting header pipe, the other end of the connecting header pipe is communicated with a plurality of connecting branch pipes, and each connecting branch pipe is communicated with a metal filter pipe. And the plurality of metal filter pipes vertically penetrate through the plurality of foundation construction plates of the foundation respectively and are inserted into the underground foundation layer. By means of the combined structure of the vacuum pump cluster and the distributed metal filter pipes, centralized negative pressure pumping drainage of underground water is achieved, and the underground water is drained out of a foundation pit. The metal filter pipe penetrates through the foundation construction plate and is inserted into the foundation layer, accurate water pumping can be directly conducted on a water seepage source, the water seepage problem of the construction face is fundamentally solved, and the construction quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ground construction, specifically relates to a vacuum pump water pumping system for guaranteeing ground foundation construction surface dry. BACKGROUND

[0002] In the building construction process, the ground foundation construction in water-rich areas is usually water-stopped by a water-stop curtain, and the specific method is to set conventional water collection wells and drainage ditches in the foundation pit for foundation pit bottom drainage. However, the conventional water collection wells and drainage ditches are only suitable for areas with low water level in the foundation pit and are relatively dry. If in a water-rich area, it is relatively difficult to achieve effective drainage and precipitation in the foundation pit, so the surface of the foundation construction plate (such as a pile cap, a lower column pier, or a concrete bottom plate) is prone to water seepage, which cannot be kept dry, thereby affecting the construction quality. SUMMARY

[0003] In view of the above problems in the prior art, the utility model provides a vacuum pump water pumping system for guaranteeing ground foundation construction surface dry, which solves the problem that the ground foundation construction surface cannot be kept dry in the process of ground foundation construction in the existing water-rich area.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] The utility model provides a vacuum pump water pumping system for guaranteeing ground foundation construction surface dry, which comprises a vacuum pump cluster, a drainage port of the vacuum pump cluster is communicated with a drainage pipe for conveying underground water to the outside of the foundation pit, a water pumping port of the vacuum pump cluster is communicated with one end of a connection main pipe, the other end of the connection main pipe is communicated with a plurality of connection branch pipes, each connection branch pipe is communicated with a metal filter pipe, and the plurality of metal filter pipes are vertically inserted into a plurality of foundation construction plates of the ground and inserted into an underground foundation layer.

[0006] The beneficial effects of the scheme are as follows: through the combination structure of the vacuum pump cluster and the distributed metal filter pipe, the underground water is concentrated and pumped out to the outside of the foundation pit. The metal filter pipe penetrates the foundation construction plate and is inserted into the foundation layer to directly and accurately pump water from the water seepage source, avoids the defect that the drainage range of the conventional water collection well is limited, solves the water seepage problem of the construction surface from the root, keeps the foundation construction plate dry during concrete pouring, and guarantees the construction quality.

[0007] Further, a plurality of water filtering holes are formed in the outer wall of each metal filter pipe below the corresponding foundation construction plate. The water filtering holes are formed in the filter pipe water seepage section, which increases the underground water collection area. The hole structure preferentially guides the water flow into the filter pipe, and the aperture design can effectively block large particle silt to prevent the filter pipe from being blocked and guarantee long-term stable drainage efficiency.

[0008] Further, the outer wall of each metal filter pipe under the corresponding base construction plate is wrapped with a cotton yarn mesh fixed by lead wire. The cotton yarn mesh is wrapped and fixed by lead wire to form a first layer of mechanical filtration barrier. The dense fiber structure of the cotton yarn mesh can intercept small sand particles, providing double protection to avoid internal blockage of the filter pipe.

[0009] Further, the outer part of each cotton yarn mesh is provided with a metal filter screen, and each metal filter screen is filled with filter material between the corresponding cotton yarn mesh. The additional metal filter screen and filter material layer constitute a composite filtration system. The outer metal filter screen provides skeletal support and intercepts gravel, the middle layer of filter material (such as quartz sand) adsorbs micro-particles, and the inner layer of cotton yarn mesh fine filters, which significantly improves the anti-clogging ability of the system, especially suitable for water-rich strata with high mud content.

[0010] Further, a water stop ring is welded on each metal filter pipe inside the corresponding base construction plate. The water stop ring is integrally formed with the base construction plate to form a physical water blocking structure. The welding process ensures the sealing between the metal filter pipe and the concrete, blocking the upward infiltration path of groundwater along the pipe wall.

[0011] Further, each connecting branch pipe is communicated with the corresponding metal filter pipe through a connecting head, and a water stop valve is arranged on each connecting head. The modular connecting head cooperates with the water stop valve design to realize single-point controllable drainage. It is convenient for quick installation of metal filter pipes during construction, and can also close the water stop valve after the water level in the local area decreases, avoiding the invalid rotation of the vacuum pump.

[0012] Further, a flow sensor is arranged on each connecting branch pipe, and each flow sensor is electrically connected with the controller of the vacuum pump cluster. The flow sensor and the controller form a regulation system, which monitors the water flow data of each branch pipe in real time and dynamically adjusts the working power of the vacuum pump cluster (such as the number of pumps started), optimizing energy utilization while ensuring drainage effect, especially suitable for construction scenes with large water level fluctuations.

[0013] Further, the vacuum pump cluster is located at the geometric center of the polygonal area enclosed by the plurality of base construction plates. The geometric center layout of the vacuum pump cluster makes the pumping path radially symmetric. Through fluid mechanics optimization, the negative pressure suction force of each metal filter pipe is evenly distributed, avoiding the occurrence of local drainage blind area, especially suitable for the overall dewatering demand of large polygonal foundation pits.

[0014] Further, the vacuum pump cluster includes a plurality of parallel vacuum pumps, and the plurality of vacuum pumps are electrically connected with the controller. The multi-pump parallel redundancy design cooperates with centralized control to greatly improve the reliability of the system. When a single vacuum pump fails, the controller can automatically adjust other pump groups to continue working, ensuring the continuity of drainage, while avoiding equipment overload through power matching, prolonging the overall service life. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Figure 1 is a schematic diagram of a connection of a vacuum pump water pumping system;

[0016] Figure 2 Figure 2 is a schematic diagram of a connection of a metal filter pipe and a foundation construction plate;

[0017] Wherein: 1, vacuum pump cluster; 11, drain pipe; 2, connection main pipe; 3, connection branch pipe; 31, connection head; 311, water stop valve; 4, metal filter pipe; 41, water stop ring; 42, water filter hole; 43, metal filter screen; 44, filter material; 5, foundation construction plate. DETAILED DESCRIPTION

[0018] The specific embodiments of the present application are described below to facilitate the understanding of the present application for those skilled in the art, but it should be clear that the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, as long as various changes are within the spirit and scope of the present application as defined and determined by the appended claims, these changes are obvious, and all applications created by the concept of the present application are within the scope of protection.

[0019] In the water-rich area, the conventional water collecting well and drainage ditch cannot effectively drain the foundation pit bottom, which causes the surface of the foundation construction plate 5 (such as the pile cap, the lower column pier, or the concrete bottom plate) to easily seep water, so that it cannot be kept dry, thereby affecting the construction quality. In order to solve this problem, the present application provides a vacuum pump water pumping system for ensuring the dryness of the foundation construction surface, which realizes the centralized negative pressure pumping of underground water through the combined structure of the vacuum pump cluster 1 and the distributed metal filter pipe 4, and discharges the underground water to the outside of the foundation pit, which can effectively and completely drain water, so that the foundation construction plate 5 can be kept dry during concrete pouring, thereby ensuring the construction quality.

[0020] Reference Figure 1 and Figure 2 A vacuum pump water pumping system for ensuring the dryness of the foundation construction surface, comprising a vacuum pump cluster 1, the vacuum pump cluster 1 is located at the geometric center of a polygonal area enclosed by a plurality of foundation construction plates 5. The geometric center layout of the vacuum pump cluster 1 makes the pumping path radially symmetrical. Through fluid mechanics optimization, the negative pressure pumping force of each metal filter pipe 4 is uniformly distributed, and local drainage blind area is avoided, which is particularly suitable for the overall dewatering demand of large polygonal foundation pits.

[0021] The vacuum pump cluster 1 comprises a plurality of parallel vacuum pumps, and the plurality of vacuum pumps are electrically connected with the controller. The vacuum pump cluster 1 is a prior art, and the specific working principle and connection relationship thereof will not be described herein.

[0022] Specifically, the drain port of the vacuum pump cluster 1 is communicated with a drain pipe 11 for transporting underground water outside the foundation pit, the suction port of the vacuum pump cluster 1 is communicated with one end of the connection main pipe 2, the other end of the connection main pipe 2 is communicated with a plurality of connection branch pipes 3, each connection branch pipe 3 is communicated with a metal filter pipe 4, and the plurality of metal filter pipes 4 vertically penetrate through a plurality of foundation construction boards 5 of the foundation and are inserted into the underground foundation layer. The metal filter pipe 4 penetrating through the foundation construction board 5 and inserted into the foundation layer can directly and accurately pump water from the water seepage source, avoiding the defect that the traditional water collecting well has a limited drainage range, and fundamentally solving the construction surface seepage problem, so that the foundation construction board 5 can remain dry during concrete pouring, ensuring the construction quality.

[0023] As a further scheme of the embodiment, a plurality of water filtering holes 42 are formed in the outer wall of each metal filter pipe 4 below the corresponding foundation construction board 5. The outer wall of each metal filter pipe 4 below the corresponding foundation construction board 5 is fixed with a cotton net by wrapping with a lead wire. The outer part of each cotton net is provided with a metal filter screen 43, and each metal filter screen 43 and the corresponding cotton net are filled with filter material 44. The metal filter screen 43 and the filter material 44 form a composite filtering system. The outer metal filter screen 43 provides skeleton support and intercepts gravel, the middle filter material 44 can adsorb micro-particles, and the inner cotton net finely filters, so that the three-level protection significantly improves the anti-clogging ability of the system, and is especially suitable for water-rich strata with high mud content. In the embodiment, the cotton net has a mesh number of 55-65, preferably 60 meshes.

[0024] As a further scheme of the embodiment, a water stop ring 41 is welded on each metal filter pipe 4 inside the corresponding foundation construction board 5. The water stop ring 41 and the foundation construction board 5 are integrally formed as a physical water blocking structure, and the sealing between the metal filter pipe 4 and the concrete is ensured by the welding process, so as to block the upward infiltration path of underground water along the pipe wall.

[0025] As a further scheme of the embodiment, each connection branch pipe 3 is communicated with the corresponding metal filter pipe 4 through a connection head 31, and each connection head 31 is provided with a water stop valve 311. Each connection branch pipe 3 is provided with a flow sensor, and each flow sensor is electrically connected with the controller of the vacuum pump cluster 1.

[0026] The flow sensor and the controller form a regulation system, which can monitor the water flow data of each branch pipe in real time and dynamically adjust the working power of the vacuum pump cluster 1, so as to optimize the energy utilization while ensuring the drainage effect, and is especially suitable for construction scenes with large water level fluctuations. The water stop valve 311 can be an electromagnetic water stop valve electrically connected with the controller, so that the controller of the vacuum pump cluster 1 can automatically close the electromagnetic water stop valve when detecting that the flow in the connection branch pipe 3 is small.

[0027] In summary, the beneficial effects of the scheme are:

[0028] Through the combination of the vacuum pump cluster 1 and the distributed metal filter tube 4, the concentrated negative pressure pumping of the underground water is realized, and the underground water is pumped out to the outside of the foundation pit. The metal filter tube 4 penetrates the foundation construction plate 5 and is inserted into the foundation layer to directly and accurately pump water to the water seepage source, avoiding the defect that the drainage range of the traditional water collecting well is limited, and fundamentally solving the construction surface seepage problem, so that the foundation construction plate 5 remains dry during concrete pouring, ensuring the construction quality.

[0029] Although the specific embodiments of the utility model are described in detail in combination with the drawings, it should not be understood as limiting the protection scope of the patent. Various modifications and changes made by those skilled in the art within the scope described in the claims are still within the protection scope of the patent.

Claims

1. A vacuum pump pumping system for ensuring the dryness of the foundation construction surface, characterized in that, The system includes a vacuum pump cluster (1), the outlet of which is connected to a drainage pipe (11) for transporting groundwater to the outside of the foundation pit, the pump outlet of which is connected to one end of a connecting main pipe (2), the other end of which is connected to multiple connecting branch pipes (3), each connecting branch pipe (3) being connected to a metal filter pipe (4), and the multiple metal filter pipes (4) vertically passing through multiple foundation construction slabs (5) of the foundation and being inserted into the underground foundation layer.

2. The vacuum pump pumping system according to claim 1, characterized in that, Each of the metal filter tubes (4) has multiple water filter holes (42) on its outer wall located below the corresponding foundation construction plate (5).

3. The vacuum pump pumping system according to claim 2, characterized in that, The outer wall of each metal filter tube (4) located below the corresponding foundation construction plate (5) is fixed with nylon mesh by lead wire.

4. The vacuum pump pumping system according to claim 3, characterized in that, Each of the nylon meshes is provided with a metal filter screen (43) on its exterior, and each metal filter screen (43) is filled with filter material (44) between itself and the corresponding nylon mesh.

5. The vacuum pump pumping system according to claim 1, characterized in that, Each of the metal filter tubes (4) is welded with a water-stop ring (41) located inside the corresponding foundation construction plate (5).

6. The vacuum pump pumping system according to claim 1, characterized in that, Each of the connecting branch pipes (3) is connected to the corresponding metal filter pipe (4) through a connector (31), and each connector (31) is provided with a water stop valve (311).

7. The vacuum pump pumping system according to claim 1, characterized in that, Each of the connecting branch pipes (3) is equipped with a flow sensor, and each flow sensor is electrically connected to the controller of the vacuum pump cluster (1).

8. The vacuum pump pumping system according to claim 1, characterized in that, The vacuum pump cluster (1) is located at the geometric center of the polygonal region enclosed by the multiple foundation construction slabs (5).

9. The vacuum pump pumping system according to claim 8, characterized in that, The vacuum pump cluster (1) includes multiple vacuum pumps connected in parallel, and each of the multiple vacuum pumps is electrically connected to the controller.

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