Sponge city sewage pump pipeline anti-blocking structure

Abstract

The utility model discloses an anti-blocking structure for a sewage pump pipeline of a sponge city, and effectively solves the problem that a sewage pipeline is easy to block. Comprising a main pipeline, a fixing pipe is vertically arranged on the main pipeline in a penetrating mode, a filter screen assembly is arranged in the fixing pipe in a sliding mode, two filter screens are arranged on the filter screen assembly and can be communicated with the main pipeline, water return pipes are arranged on the two sides of the main pipeline, and the water return pipes and the fixing pipe are arranged in a crossed mode. The water return pipe on the side is communicated with the main pipeline to form a loop, the water return pipe extracts filtered water in the main pipeline to backflush the filter screen and then flows back into the main pipeline, and drain outlets are formed in the two ends of the fixed pipe; the filter device is simple and ingenious in structure and convenient to use, and the water return pipes are arranged on the two sides of the main pipeline, so that the filter device is backwashed, the filtering efficiency of the filter screen is kept, the service life is prolonged, the manual intervention frequency is reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of anti - blocking of sewage pipes in sponge cities, in particular to an anti - blocking structure for sewage pump pipes in sponge cities. Background Art

[0002] In a sponge city, urban wastewater is recycled and purified for reuse. In the whole system, the sewage in the sewage pump pipe contains large - particle impurities. If not filtered, blockage will occur at narrow or corner parts of the pipeline. Therefore, anti - blocking devices are added to the sewage pipeline to avoid pipeline blockage. However, after long - term use, impurities accumulate in the pipeline, blocking the filtering device and affecting normal sewage discharge. Summary of the Utility Model

[0003] To overcome the defects of the prior art, the utility model provides an anti - blocking structure for sewage pump pipes in sponge cities, effectively solving the problem that sewage pipes are prone to blockage.

[0004] The technical solution for solving the technical problem is: an anti - blocking structure for sewage pump pipes in sponge cities, including a main pipeline. A fixed pipe vertically penetrates the main pipeline. A filter screen assembly is slidably arranged in the fixed pipe. There are two filter screens on the filter screen assembly, and the two filter screens can be respectively communicated with the main pipeline. There are return water pipes on both sides of the main pipeline. The return water pipes are arranged cross -wise with the fixed pipe. When the filter screen assembly moves to one side of the fixed pipe, the return water pipe on that side is communicated with the main pipeline to form a loop. The return water pipe extracts the filtered water in the main pipeline to back - flush the filter screen and then flows back into the main pipeline. There are sewage outlets at both ends of the fixed pipe.

[0005] Preferably, a hydraulic cylinder is arranged at the end of the fixed pipe, and the hydraulic cylinder controls the movement of the filter screen assembly in the fixed pipe.

[0006] Preferably, a control valve is arranged at one end of the return water pipe connected to the main pipeline, a check valve is arranged at the other end, and a pressure pump is arranged on the return water pipe.

[0007] Preferably, a mesh plate is arranged at the connection of the end of the return water pipe where it flows back into the main pipeline and the fixed pipe.

[0008] Preferably, a touch switch is arranged at the end of the fixed pipe, and the touch switch is electrically connected to the control valve and the pressure pump.

[0009] The structure of the utility model is simple and ingenious, easy to use. By arranging return water pipes on both sides of the main pipeline, back - flushing of the filtering device is realized, the filtering efficiency of the filter screen is maintained, the service life is prolonged, the frequency of manual intervention is reduced, and the maintenance cost is lowered. Description of the Drawings

[0010] Figure 1It is a structural schematic diagram of a sponge city sewage pump pipeline anti-blocking structure of the utility model.

[0011] Figure 2 The utility model is a cross-sectional structural diagram of a sponge city sewage pump pipeline anti-blocking structure.

[0012] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a pipeline in a sponge city sewage pump pipeline anti-blocking structure.

[0013] Figure 4 It is a structural schematic diagram of a filter assembly in a sponge city sewage pump pipeline anti-blocking structure of the utility model. DETAILED DESCRIPTION

[0014] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings.

[0015] Depend on Figures 1 to 4 It can be seen that a sponge city sewage pump pipeline anti-blocking structure includes a main line 1, a fixed pipe 2 is vertically penetrated on the main line 1, a filter screen 3 assembly is slidably arranged in the fixed pipe 2, two filters 3 are provided on the filter screen 3 assembly, and the two filters 3 can be connected with the main line 1 respectively. Return pipes 4 are provided on both sides of the main line 1, and the return pipes 4 are cross-arranged with the fixed pipe 2. When the filter screen 3 assembly moves to one side of the fixed pipe 2, the return pipe 4 on this side is connected with the main line 1 to form a loop. The return pipe 4 draws the filtered water in the main line 1 to backwash the filter screen 3 and then returns it to the main line 1. Sewage outlets 5 are provided at both ends of the fixed pipe 2.

[0016] When the utility model is used,

[0017] The device is installed in the sewage pump pipeline. One of the filter screens 3 in the filter screen 3 assembly is in working condition to filter the sewage in the pipeline and filter out impurities. When there are many impurities attached to the filter screen 3, which affects the filtering efficiency, the filter screen 3 on the filter screen 3 assembly is switched, and the filter screen 3 containing more impurities is moved to a position connected to the return pipe 4, and the return pipe 4 is connected to the main pipeline 1. The filtered water in the main pipeline 1 is extracted and backwashed through the filter screen 3 to wash away the impurities attached to the filter screen 3. The excess water flows back into the main pipeline 1, and the impurities are discharged to the outside from the sewage outlet 5.

[0018] The sewage outlet 5 is in a normally closed state and is opened periodically to discharge impurities.

[0019] During this process, the normal operation of the sewage pump pipeline is not affected, and there is no need to stop the water supply, which avoids wasting time. At the same time, the filter screen 3 is backwashed, which can extend the service life of the filter screen 3, reduce the frequency of manual intervention, and reduce maintenance costs.

[0020] A hydraulic cylinder 6 is provided at the end of the fixed pipe 2. The hydraulic cylinder 6 controls the movement of the filter screen 3 assembly within the fixed pipe 2. The telescopic rod of the hydraulic cylinder 6 extends into the fixed pipe 2 and is connected to the filter screen 3 assembly, driving the filter screen 3 assembly to move within the fixed pipe 2 to achieve the switching of the filter screen 3.

[0021] One end of the return water pipe 4 connected to the main pipeline 1 is provided with a control valve 7, and the other end is provided with a check valve 8. A pressure pump 9 is provided on the return water pipe 4. At the connection of the end of the return water pipe 4 flowing back to the main pipeline 1 and the fixed pipe 2, a mesh plate 10 is provided. A touch switch 11 is provided at the end of the fixed pipe 2. The touch switch 11 is electrically connected to the control valve 7 and the pressure pump 9.

[0022] After the filter screen 3 is switched, the end of the filter screen 3 in the non-working state on the outer side contacts the touch switch 11. The control valve 7 and the pressure pump 9 on this side are simultaneously started. The control valve 7 is opened to connect the return water pipe 4 and the main pipeline 1. The pressure pump 9 is used to enhance the water flow rate, so as to backwash the impurities attached to the filter screen 3. The check valve 8 can prevent the unfiltered sewage from directly entering the rear of the main pipeline 1 through the return water pipe 4, ensuring the filtration of the sewage.

[0023] At the same time, the presence of the pressure pump 9, the control valve 7, and the check valve 8 makes the water flow direction in the return water pipe 4 determined and unique. Due to the presence of the mesh plate 10, the impurities in the fixed pipe 2 will not enter the main pipeline 1 again through the return water pipe 4, nor will they enter the rear of the main pipeline 1, ensuring that the sewage behind the main pipeline 1 is filtered and preventing the impurities from blocking the subsequent pipelines.

[0024] Compared with the prior art, the utility model has the following beneficial effects: It can perform backwashing on the regular filter screen, reduce the number of impurities attached to the filter screen, maintain the filtering performance of the filter screen, thereby extending the service life of the filter screen, reducing the maintenance frequency of the filter screen, lowering the labor intensity, and at the same time reducing the maintenance cost.

Claims

1. A pipe anti-blocking structure for a sponge city sewage pump, characterized in that The invention comprises a main line (1), a fixed pipe (2) is vertically passed through the main line (1), a filter assembly is slidably arranged in the fixed pipe (2), two filters (3) are arranged on the filter assembly, and the two filters (3) can be respectively connected with the main line (1), and return pipes (4) are arranged on both sides of the main line (1), and the return pipes (4) and the fixed pipe (2) are arranged crosswise. When the filter assembly moves to one side of the fixed pipe (2), the return pipe (4) on the side is connected with the main line (1) to form a loop, and the return pipe (4) draws filtered water in the main line (1) to backwash the filter (3) and then returns it to the main line (1). Sewage outlets (5) are provided at both ends of the fixed pipe (2).

2. The anti-blocking structure for the sewage pump pipeline in a sponge city according to claim 1, characterized in that A hydraulic cylinder (6) is provided at the end of the fixed pipe (2), and the hydraulic cylinder (6) controls the movement of the filter assembly within the fixed pipe (2).

3. The anti-blocking structure of the sewage pump pipeline in the sponge city according to claim 1, characterized in that, The return pipe (4) is connected to the main pipe (1) and is provided with a control valve (7) at one end and a one-way valve (8) at the other end. A pressure pump (9) is provided on the return pipe (4).

4. A sponge city sewage pump pipeline anti-blocking structure according to claim 1, characterized in that, A mesh plate (10) is provided at the connection between the return pipe (4) and the fixed pipe (2), where the return pipe (4) returns to one end of the main pipe (1).

5. The anti-blocking structure of the sewage pump pipeline in a sponge city according to claim 2, characterized in that, A touch switch (11) is provided at the end of the fixed tube (2), and the touch switch (11) is electrically connected to the control valve (7) and the pressure pump (9).

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