Rainwater collecting equipment paved by high-density polyethylene geomembrane

Abstract

The rainwater collection equipment comprises an initial rainwater collection pool, a collection inner cavity, a high-density polyethylene geomembrane laid on the side wall of the inner side of the collection inner cavity, a slope top line at the edge of the outer side of an opening, a slope toe line at the edge of the inner side and a water collection pit, and a rainwater lifting pump station comprises a secondary rainwater collection pool. Hot melt adhesive is arranged at the joint of the connecting pipe and the collecting tank; the formed initial rainwater collecting pool is simple in structure and convenient to construct, the HDPE geomembrane is laid on the inner side of the initial rainwater collecting pool, and compared with a traditional reinforced concrete pool, the investment cost can be reduced by 60% or above; a connecting pipe is arranged between the formed rainwater lifting pump station and the initial rainwater collecting pool, and the connecting pipe is connected and communicated with a water collecting pit, mainly used for storing rainwater, of the initial rainwater collecting pool, so that rainwater transfer is achieved. Meanwhile, the hot melt adhesive is arranged at the joint of the connecting pipe and the collecting tank, so that the connecting stability and the sealing performance are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rainwater collection equipment, in particular to a high-density polyethylene geomembrane paved rainwater collection equipment. BACKGROUND

[0002] The production process of electrolytic aluminum adopts a molten salt electrolysis method, and the production raw material is aluminum oxide and fluorinated salt. In the process of electrolysis, part of the fluoride will volatilize with the electrolysis flue gas, and will be scattered in the electrolytic plant area. During the early stage of rainfall, due to the rainwater washing the roof, asphalt concrete road and the like, the scattered fluoride will be washed into the rainwater drainage system by the rainwater, so that some fluorine-containing pollutants in the early stage of rainwater will be discharged into the water body, which will cause the imbalance of the water body, and long-term accumulation in the soil will cause the plant photosynthesis to be hindered and even cause the reduction of yield of rice and wheat. In today's increasingly stringent environmental requirements, according to the relevant provisions of GB 50988-2014 "Non-ferrous metal industry environmental protection engineering design specification", the local environmental protection department usually requires that the electrolytic aluminum plant be equipped with an early stage rainwater collection pool. The conventional early stage rainwater collection pool usually adopts a reinforced concrete structure, and the pool volume is usually tens of thousands of cubic meters, and the pool cost is very high. SUMMARY

[0003] The purpose of the present application is to provide a high-density polyethylene geomembrane paved rainwater collection equipment to solve the problem of high cost of the early stage rainwater collection pool in the prior art.

[0004] The technical scheme of the present application: a high-density polyethylene geomembrane paved rainwater collection equipment, comprising an early stage rainwater collection pool, an opening outward collection inner cavity is formed on the upper side end face of the early stage rainwater collection pool,

[0005] The high-density polyethylene geomembrane is paved on the inner side wall of the collection inner cavity, and the outer edge of the opening is a slope top line, and the inner edge is a slope foot line, the height of the slope top line is greater than that of the slope foot line, and an inclined slope is formed between the two;

[0006] A water collecting pit is provided with an opening outward collection groove on the upper end face, and is arranged on the inner side bottom wall of the collection inner cavity, and the opening of the collection groove is located at the inner edge of the opening of the collection inner cavity;

[0007] A rainwater lifting pump station is provided with a secondary rainwater collection pool, which is arranged on one side of the early stage rainwater collection pool and forms a storage cavity on the inner side;

[0008] A connecting pipe is connected to the storage cavity at one end and is connected to the inner side of the collection groove at the other end, a hot melt adhesive is arranged at the connecting position of the connecting pipe and the collection groove, and a waterproof pipe sleeve is arranged at the connecting position of the connecting pipe and the storage cavity.

[0009] Further, the rainwater lifting pump station further comprises a lifting pump station arranged on the upper side of the secondary rainwater collecting pool, and a water pump working cavity is formed in the inner side of the lifting pump station, a plurality of water pumps in communication with the storage cavity are arranged in the inner side of the water pump working cavity, and the water pump is provided with a drain pipe.

[0010] Further, the connecting pipe is made of high-density polyethylene material.

[0011] Further, the water inlet pipe is arranged at the top line of the slope.

[0012] Further, the lowest water level line stored in the storage cavity is the same as the bottom elevation line of the initial rainwater collecting pool.

[0013] Further, the slope formed by the slope foot line and the top line of the slope is 1:1.5.

[0014] Compared with the prior art, the initial rainwater collecting pool has simple structure and is convenient for construction, the high-density polyethylene (HDPE) geomembrane is paved in the inner side, the investment can be reduced by more than 60% compared with the cost of the traditional reinforced concrete pool, the rainwater lifting pump station is arranged to cooperate with the initial rainwater collecting pool to further process the collected rainwater, the connecting pipe is arranged between the rainwater lifting pump station and the initial rainwater collecting pool, and the connecting pipe and the water collecting pit mainly storing rainwater of the initial rainwater collecting pool are connected and penetrated, so that the rainwater is transported, and the hot melt adhesive is arranged at the connecting position of the connecting pipe and the collecting groove to increase the connection stability and the sealing property. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a panoramic view of the whole embodiment of the present application;

[0016] Figure 2 is a local plan view of the present application;

[0017] Figure 3 is Figure 1 is a sectional view along the line A-A. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0019] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the direction indications will also change accordingly.

[0020] In addition, the descriptions involving "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0021] Referring to Figures 1-3 In the present application, a high-density polyethylene geomembrane paving rainwater collection device, comprising a preliminary rainwater collection pool 1, the upper side of the preliminary rainwater collection pool is provided with an opening outwardly collecting an inner cavity 12, the inner side of the collecting inner cavity 12 is paved with a high-density polyethylene geomembrane, and the outer edge of the opening is a crest line 10, and the inner edge is a toe line 11, the height of the crest line is greater than that of the toe line, and an inclined slope is formed between the two; a water collection pit 2, the upper end of the water collection pit 2 is provided with an opening outwardly collecting a groove 20, and the groove 20 is arranged on the inner bottom wall of the collecting inner cavity 12, and the opening of the groove 20 is located at the inner edge of the opening of the collecting inner cavity 12; a rainwater lifting pump station 4, the rainwater lifting pump station 4 comprises a secondary rainwater collection pool 40, which is arranged on one side of the preliminary rainwater collection pool 1 and forms a storage cavity 400 on the inner side; in use, the rainwater is collected by the formed preliminary rainwater collection pool 1, and the side wall of the collecting inner cavity 12 formed on the inner side of the preliminary rainwater collection pool 1 is paved with a high-density polyethylene (HDPE) geomembrane, and the pool is not a reinforced concrete. The opening of the formed preliminary rainwater collection pool 1 is provided with a certain slope inclination, the height of the crest line 10 is higher, and the height of the toe line 11 is lower, and the shape of the preliminary rainwater collection pool is not limited, which can be used on the unused site in the factory area, and the "corner waste" position in the factory area is fully utilized, and the utilization rate of the site is improved. The bottom and slope of the foundation pit of the preliminary rainwater collection pool are rammed with plain soil, the ramming coefficient is 0.95, and the slope inclination of the slope formed by the toe line 11 and the crest line 10 is usually 1:1.5.

[0022] Meanwhile, the rainwater collected in the initial rainwater collection pool 1 is transported to the sewage treatment equipment for further purification treatment by setting the rainwater lifting pump station 4. The water collecting pit 2 with the same opening height as the toe line 11 is arranged in the initial rainwater collection pool 1, so as to maximize the rainwater collection efficiency. The highest water level of the initial rainwater collection pool is determined by the water inlet pipe 13 arranged at the top line 10. Figure 2 In the embodiment, the lowest water level c of the storage cavity 400 inside the secondary rainwater collection pool 40 is the same as the bottom level d of the initial rainwater collection pool 1, that is, the same as the overall height of the water collecting pit 2. In addition, one end of the connecting pipe 3 is connected to the storage cavity 400, and the other end is connected to the collecting groove 20. The connecting pipe 3 is connected to the collecting groove 20 by hot melt glue 5, and the connecting pipe 3 is connected to the storage cavity 400 by a waterproof pipe sleeve 6. The rainwater in the water collecting pit 2 is transported to the secondary rainwater collection pool 40. The connecting pipe 3 is made of high-density polyethylene. One end of the high-density polyethylene pipe is connected to the geomembrane in the water collecting pit by hot melting to ensure water sealing. The other end of the high-density polyethylene pipe is connected to the reinforced concrete secondary rainwater collection pool 40 by a waterproof sleeve to ensure sealing, so that the initial rainwater does not exude and environmental pollution is avoided.

[0023] In the embodiment, more specifically, the rainwater lifting pump station 4 further includes a lifting pump station 41 arranged on the upper side of the secondary rainwater collection pool 40 and forming a water pump working cavity 410 inside. A plurality of water pumps 8 are arranged in the water pump working cavity 410 and connected to the storage cavity 400. The water pump 8 is provided with a drain pipe 9. When rainwater enters the storage cavity of the secondary rainwater collection pool 40, the collected rainwater is pumped out by the lifting pump station 41 with the water pump 8 arranged on the upper side of the secondary rainwater collection pool 40, and is discharged into the sewage treatment equipment through the drain pipe 9 for further purification treatment and reuse.

[0024] In addition to the preferred embodiments described above, the present application also has other embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

Claims

1. A high-density polyethylene geomembrane-paved rainwater collection device, comprising a primary rainwater collection tank (1), the upper end face of the primary rainwater collection tank (1) forming an outwardly open collection cavity (12), characterized in that, the inside wall of the collection cavity (12) is paved with high-density polyethylene geomembrane, and the outer edge of the opening is a crest line (10) and the inner edge is a toe line (11), the height of the crest line (10) is greater than that of the toe line (11), and an inclined slope is formed therebetween; a catchment pit (2) is provided on the upper end face of the catchment pit (2) and is arranged on the inside bottom wall of the collection cavity (12), forming a collection groove (20) with an opening on the inside edge of the opening of the collection cavity (12); a rainwater lifting pump station (4) comprises a secondary rainwater collection tank (40) arranged on one side of the primary rainwater collection tank (1) and forming a storage cavity (400) on the inside; a connecting pipe (3) is connected to the storage cavity (40) at one end and is connected to the inside of the collection groove (20) at the other end, a hot melt adhesive (5) is arranged at the connection between the connecting pipe (3) and the collection groove (20), and a waterproof pipe sleeve (6) is arranged at the connection between the connecting pipe (3) and the storage cavity (40).

2. The high-density polyethylene geomembrane-paved rainwater collecting apparatus according to claim 1, characterized by, The rainwater lifting pump station (4) further comprises a lifting pump station (41) arranged on the upper side of the secondary rainwater collection tank (40) and forming a water pump working cavity (410) on the inside, a plurality of water pumps (8) are arranged in the water pump working cavity (410) and are in communication with the storage cavity (400), and the water pump (8) is provided with a drain pipe (9).

3. A high-density polyethylene geomembrane-paved rainwater collecting apparatus according to claim 2, characterized in that, The connecting pipe (3) is made of high-density polyethylene material.

4. The high-density polyethylene geomembrane-paved rainwater collecting apparatus according to claim 3, characterized by The crest line (10) is provided with a water inlet pipe (13).

5. A high-density polyethylene geomembrane-paved rainwater collecting apparatus according to claim 4, characterized in that, The lowest water level line stored in the storage cavity (400) is the same as the bottom elevation line of the primary rainwater collection tank (1).

6. A high-density polyethylene geomembrane-paved rainwater collecting apparatus according to claim 5, characterized in that, The slope of the inclined slope formed by the toe line (11) and the crest line (10) is 1:1.5.

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