Construction site rainwater collection and reuse system

Abstract

The utility model relates to a kind of construction site rainwater collection and recycling system. Including rainwater collection pipeline, diversion well, intercepting filter well, abandoned flow well, PP module water storage pool, buried filter integrated machine and clean water pool, the PP module water storage pool is set in predetermined foundation pit, the PP module water storage pool includes reinforced concrete foundation, waterproof layer and PP module, the waterproof layer is laid on reinforced concrete foundation, the PP module is wrapped in waterproof layer, the waterproof layer forms the pool bottom wall of PP module water storage pool, four surrounding pool side walls and pool top wall;The four surrounding pool side walls and pool top wall are each laid with a layer of protective plate for protecting waterproof layer;The protective plate is covered with a layer of holding frame outside.The utility model replaces concrete pool wall by setting protective plate and holding frame, after protective plate and holding frame are installed, backfilling sand to foundation pit can, the construction of concrete pool wall pouring formwork is saved, cost is saved, and construction period is shortened.

Description

Technical Field

[0001] This utility model relates to a rainwater collection and reuse system for construction sites. Background Technology

[0002] The significance of rainwater harvesting at construction sites lies in achieving energy conservation, emission reduction, and environmental protection. It reduces rainwater discharge and ensures water availability during droughts and emergencies (such as fires). Furthermore, the water can be used for construction water, water for construction machinery, and other water needs on the construction site, saving tap water and reducing water treatment costs.

[0003] Existing construction site rainwater harvesting and reuse systems, such as the rainwater harvesting system construction method disclosed in Chinese Invention Patent Specification CN 109989474 B, utilize PP water storage modules and concrete tank walls to form a rainwater storage tank. The tank wall structure is as follows: the tank wall is constructed of poured concrete, with a height of 3.58m and a thickness of 800mm. A single-sided formwork and layered pouring method is used, with each layer of concrete being 300mm thick. During the pouring process, scaffolders and carpenters continuously check the formwork and supports for looseness and reinforce them accordingly.

[0004] This type of pool wall construction is not only expensive, but also requires the erection of concrete pouring formwork and waiting for the concrete to solidify, resulting in a long construction period. Utility Model Content

[0005] The purpose of this utility model is to provide a construction site rainwater harvesting and reuse system, comprising a rainwater harvesting pipe, a diversion well, a sewage interception and filtration well, a diversion well, a PP module water storage tank, an underground integrated filter, and a clear water tank, connected in sequence. The rainwater harvesting pipe collects rainwater from the construction site and directs it into the diversion well. The diversion well diverts the rainwater before it flows into the sewage interception and filtration well. The sewage interception and filtration well performs preliminary filtration of the rainwater before it flows into the diversion well. The diversion well separates initial rainwater from subsequent rainwater and directs the subsequent rainwater into the PP module water storage tank. The PP module water storage tank is equipped with a water pump. Water from the PP module water storage tank is fed into an underground integrated filter machine. The underground integrated filter machine filters and purifies the rainwater before it flows into a clear water tank for storage. The PP module water storage tank is set in a predetermined foundation pit. The PP module water storage tank includes a reinforced concrete foundation, a waterproof layer, and PP modules. The waterproof layer is laid on the reinforced concrete foundation, and the PP modules are wrapped inside the waterproof layer. The waterproof layer forms the bottom wall, the four side walls, and the top wall of the PP module water storage tank. A protective plate is laid on the outside of the four side walls and the top wall to protect the waterproof layer. A retaining frame is covered on the outside of the protective plate.

[0006] This invention prevents sharp objects (including gravel, branches, etc.) from damaging the waterproof layer during backfilling of the foundation pit by installing a protective plate. The retaining frame strengthens the protective plate, protecting it and preventing it from detaching. By replacing concrete pool walls with the protective plate and retaining frame, backfilling the foundation pit with sand after installation eliminates the need for concrete pool wall formwork, saving costs and shortening the construction period. Attached Figure Description

[0007] Figure 1 A flowchart of this utility model is shown;

[0008] Figure 2 A schematic diagram showing the arrangement of the PP module water storage tank in the foundation pit is shown;

[0009] Figure 3 The front view of the PP module water storage tank is shown;

[0010] Figure 4 It shows Figure 3 A magnified view of part A;

[0011] Figure 5 A perspective view of the PP module water storage tank of this utility model is shown;

[0012] Figure 6 It shows in Figure 5 The diagram after the framework decomposition will be retained.

[0013] Icon labels:

[0014] 10. Excavation pit; 20. Reinforced concrete foundation; 30. Waterproof layer; 40. PP module; 50. Protective board; 60. Retaining frame; 601. Top frame; 602. Side frame. Detailed Implementation

[0015] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution.

[0016] like Figures 1 to 6The illustrated construction site rainwater harvesting and reuse system includes, in sequence, a rainwater collection pipe, a diversion well, a sewage interception and filtration well, a wastewater diversion well, a PP module water storage tank, an underground integrated filter, and a clear water tank. The rainwater collection pipe collects rainwater from the construction site and directs it into the diversion well. The diversion well separates the rainwater before it flows into the sewage interception and filtration well. The sewage interception and filtration well performs preliminary filtration before the rainwater flows into the wastewater diversion well. The wastewater diversion well separates the relatively heavily polluted initial rainwater from the relatively clean later rainwater, directing the later rainwater into the PP module water storage tank. The PP module water storage tank is equipped with a water pump, which pumps water from the PP module water storage tank into the underground integrated filter. The underground integrated filter machine filters and purifies rainwater before it flows into a clear water tank for storage and later use. A water pump is also installed in the clear water tank to deliver the water to the water use points. In this embodiment, the water use points include engineering vehicle washing points, concrete curing spraying points, and construction site toilets. The PP module water storage tank is set in a predetermined foundation pit 10. The PP module water storage tank includes a reinforced concrete foundation 20, a waterproof layer 30, and PP modules 40. The waterproof layer 30 is laid on the reinforced concrete foundation 20, and the PP modules 40 are wrapped inside the waterproof layer 30. The waterproof layer 30 forms the bottom wall, the surrounding side walls, and the top wall of the PP module water storage tank.

[0017] The outer sides of the pool and the top wall of the pool are all covered with a protective plate 50 to protect the waterproof layer;

[0018] The protective plate 50 is covered by a retaining frame 60. This technical solution prevents sharp objects (including gravel, branches, etc.) from damaging the waterproof layer during backfilling of the foundation pit by installing the protective plate. The retaining frame strengthens the protective plate, protecting it and preventing it from falling off. By using the protective plate and retaining frame instead of concrete pool walls, sand can be backfilled into the foundation pit after the protective plate and retaining frame are installed, eliminating the need for concrete pool wall formwork, saving costs and shortening the construction period.

[0019] In this embodiment, the structures of the rainwater collection pipes, diversion wells, intercepting and filtering wells, diversion wells, PP modules, water pumps, underground integrated filters, and clear water tanks can all adopt existing technologies. For details, please refer to the modular rainwater collection and reuse system disclosed in Chinese Utility Model Patent Specification CN 222525469 U and the sponge city rainwater collection and treatment system and rainwater collection and treatment method disclosed in Chinese Invention Patent Application Publication Specification CN112982563 A, etc., which will not be repeated here.

[0020] The retaining frame 60 includes a top frame 601 covering the top protective plate 50 and four side frames 602 covering the side protective plates 50; both the top frame 601 and the side frames 602 are wooden frames.

[0021] The two adjacent side frames 602 are fixed together by nails (not shown in the figure), and all the side frames 602 are also fixed to the top frame 601 by nails.

[0022] This technical solution features a well-designed wooden frame with a simple structure, easy and quick assembly, and low manufacturing cost. Furthermore, by fixing the top frame and all side frames together with nails, it can improve the integrity and strength of the frame and enhance the protective effect of the protective panel.

[0023] The top frame 601 and all side frames 602 are grid-like.

[0024] The waterproof layer 30 is a composite membrane consisting of two layers of geotextile and a seepage-proof membrane sandwiched between the two layers of geotextile. The protective board 50 is a plastic board or a wooden board.

Claims

1. A construction site rainwater harvesting and reuse system, comprising a rainwater harvesting pipe, a diversion well, a sewage interception and filtration well, a diversion well, a PP module water storage tank, an underground integrated filter, and a clear water tank, connected in sequence. The rainwater harvesting pipe collects rainwater from the construction site and directs it into the diversion well. The diversion well diverts the rainwater into the sewage interception and filtration well. The sewage interception and filtration well performs preliminary filtration of the rainwater before it flows into the diversion well. The diversion well separates initial rainwater from subsequent rainwater and directs the subsequent rainwater into the PP module water storage tank. A water pump is installed inside the modular water storage tank. The water pump sends water from the PP modular water storage tank to an underground integrated filter machine. The underground integrated filter machine filters and purifies the rainwater before it flows into a clear water tank for storage. The PP modular water storage tank is set in a predetermined foundation pit. The PP modular water storage tank includes a reinforced concrete foundation, a waterproof layer, and PP modules. The waterproof layer is laid on the reinforced concrete foundation, and the PP modules are enclosed within the waterproof layer. The waterproof layer forms the bottom wall, the surrounding side walls, and the top wall of the PP modular water storage tank. Its distinguishing feature is: The outer walls of the pool's four sides and the top wall of the pool are all covered with a protective board to protect the waterproof layer. The protective panel is covered by a retaining frame.

2. The construction site rainwater harvesting and reuse system according to claim 1, characterized in that: The retaining frame includes a top frame covering the top protective panel and four side frames covering the side protective panels. Both the top frame and the side frames are made of wood; The two adjacent side frames are fixed together with nails, and all the side frames are also fixed to the top frame with nails.

3. The construction site rainwater harvesting and reuse system according to claim 2, characterized in that: The top frame and all side frames are grid-like.

4. The construction site rainwater harvesting and reuse system according to claim 3, characterized in that: The waterproof layer is a composite membrane consisting of two layers of geotextile and a layer of impermeable membrane sandwiched between the two layers of geotextile.

5. The construction site rainwater harvesting and reuse system according to claim 4, characterized in that: The protective panel is made of plastic or wood.

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