Municipal impounded water recycling back irrigation system and construction method

Abstract

The invention discloses a municipal storage water recycling back irrigation system and a construction method. The system is provided with a rainwater storage well, a water pump, honeycomb stone, a vertical longitudinal water pipe, a connector, a plane pipe disc, a turbulent permeable water diversion ring, a turning water saving pipe, a pressure water spraying device and a tree pool water level monitor. The construction process comprises the steps of water pump installation, water conveying pipeline arrangement, soil filling, honeycomb stone laying, plane pipe disc and water diversion ring installation, water diversion ring arrangement, pressure water spraying device arrangement, tree pool water level monitor installation and the like. By means of the system, the survival rate of green plants in special drought seasons can be increased, recycling of municipal road construction water storage is achieved, and a diversified ecological environment is provided. Meanwhile, excessive irrigation or drought can be prevented by detecting the soil humidity, and labor input is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of municipal engineering construction, and in particular to a municipal water storage and reuse reverse irrigation system and a construction method. Background Art

[0002] my country has actively promoted the construction of sponge cities and promoted the implementation of many comprehensive renovation projects, such as road reconstruction, renovation of old residential areas, rainwater collection and reuse, etc. These measures have effectively promoted the application of green travel and carbon neutral technology, and brought new vitality to urban development. However, there are still some problems in the maintenance of urban greening, such as the rapid increase in the greening area of ​​parks and road tree pools, which requires regular artificial spraying; a large amount of rainwater is discharged during heavy rains and not effectively used, and the survival rate of newly planted trees is low during road construction in dry seasons; under high temperature conditions, excessive watering of plants causes oversaturation, which is not conducive to growth; soil and root moisture and nutritional status are crucial to tree survival, but there are no corresponding measures to effectively solve them. Summary of the invention

[0003] The purpose of the present invention is to effectively solve the problems in the prior art that spraying cannot meet the needs of extreme drought seasons, the labor input is large, rainwater storage and reuse, and the nutrient solution cannot reach the root system directly, and propose a municipal water storage and reuse reverse irrigation system and construction method.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A municipal water storage and reuse reverse irrigation system comprises a rainwater storage well, a rainwater well cover, a main water pipe under a tree pit, a water pump, a honeycomb stone, a vertical longitudinal water pipe, a connector, a plane pipe disc, a turbulent permeable water diversion circle, a bend water pipe, a pressure water spraying device, and a water level monitor. The main water pipe under the tree pit is connected to the rainwater storage well, the water pump is arranged in the rainwater storage well, one end of the water pump is connected to a water inlet pipe, and the other end is connected to a water delivery pipe, a plurality of vertical longitudinal water pipes are arranged on the water delivery pipe, the middle part of the vertical longitudinal water pipe is connected to a plane pipe disc through a connector, a turbulent permeable water diversion circle is arranged circumferentially of the plane pipe disc, a bend water pipe is connected to the top of the vertical longitudinal water pipe, the vertical longitudinal water pipe, the connector, the plane pipe disc and the turbulent permeable water diversion circle are all buried underground, the top of the bend water pipe protrudes from the ground and is provided with a pressure water spraying device, and a water level monitor is arranged in the rainwater storage well.

[0006] Preferably, the water pump is an automatically controlled bottom-hung water pump.

[0007] Preferably, the pressure water spraying device comprises a pressure seal, a pressure water spraying port and a water spraying eye, and the pressure seal comprises a pressure plate.

[0008] Preferably, the planar tube coil is provided with multiple layers.

[0009] Preferably, it also includes a soil moisture detection device, the soil moisture detection device is connected to a signal feedback device, the water pump is connected to a start-stop controller, and the start-stop controller can control the start and stop of the water pump according to the feedback signals of the water level detector and the soil moisture detection device.

[0010] Preferably, the signal feedback device, soil moisture detection device and start-stop controller are connected by wire or wirelessly.

[0011] Preferably, the soil moisture detection device is buried in a soil layer at a horizontal distance of 50-100 cm from the plane pipe disk.

[0012] A construction method for a municipal water storage and reuse reverse irrigation system comprises the following steps:

[0013] S1. After the rainwater storage well is constructed, install the water pump and use underground buried wires for terminal switch control.

[0014] S2. Install the water pipes, and install the longitudinal water pipes that supply water to the green plants in sections;

[0015] S3. Then paved fill 20-25cm thick, paved with gravel soil with a diameter of no more than 2-3cm, and then paved with 5-8cm honeycomb stone, and inlaid with soil to form a dense structure, compacted with a small rammer;

[0016] S4. Install the flat tube tray and the turbulent water diversion ring, and insert the turbulent water diversion ring into the flat tube tray by 5-10cm;

[0017] S5. After installation, lay a 20-25cm soil layer and then a layer of honeycomb stone.

[0018] Preferably, a joint water pipe is installed 30-50 cm below the ground to 15-20 cm above the ground, and a pressure seal is set on it. The pressure plate can be flushed open by pressure from the upper and lower water to prevent the entry of dust when not in use. Water can be injected from the top to directly irrigate the roots of green plants, and the excess water can flow back into the rainwater storage well. At the same time, the water at the bottom can be used in pumping mode to achieve the purpose of centralized spraying.

[0019] Preferably, the flat pipe disc is provided with multiple layers, and when the upper layer of embedded soil reaches the level of covering the honeycomb stone, the upper layer of flat pipe disc is installed according to the designed thickness of the overall soil layer.

[0020] Compared with the prior art, the present invention provides a municipal water storage and reuse reverse irrigation system and construction method, which has the following beneficial effects:

[0021] By adopting the above construction device and construction method, the water storage in municipal road construction can be reused and integrated with the greening system, and the storage of natural water in special weather, especially in the dry season, can be realized to improve the survival rate of green plants through reverse irrigation. At the same time, the two-way supply of ground and underground water storage and the use of various filling materials provide an environment for the ecosystem and make better use of the development of a diverse ecosystem.

[0022] At the same time, the flat pipe plate and turbulent permeable water diversion circle are used, through which the water flow can be directed to the honeycomb stone, and the water can be slowly absorbed into the soil layer, and it is not easy to flow away quickly. At the same time, because of the structure of the honeycomb stone and the influence of the water flow, the soil layer can also utilize the reproduction of soil-loosening organisms at the roots of trees, which is more conducive to the growth of green plants;

[0023] At the same time, the directional injection of upper nutrient solution can directly reach the roots of green plants, and the nutrients can slowly seep into the soil layer, thus ensuring the survival rate of newly planted green plants.

[0024] Furthermore, the use of soil moisture detection devices can effectively avoid over-irrigation or drought, and soil moisture can be fed back in a timely manner, which is conducive to realizing automatic control and thus reducing labor input. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a municipal water storage and reuse reverse irrigation system proposed by the present invention;

[0026] Figure 2 It is a schematic diagram of the connection structure of the vertical longitudinal water pipe, the connector, the flat pipe plate, and the turbulent permeable water diversion ring in the present invention.

[0027] Figure 3 It is a schematic diagram of the connection structure between the pressure water spraying device and the joint water pipe in the present invention;

[0028] Figure 4 It is a structural schematic diagram of a municipal water storage and reuse reverse irrigation system equipped with a soil moisture detection device;

[0029] In the figure: 1. rainwater storage well; 2. rainwater well cover; 3. main water pipe under the tree pit; 4. green plants; 5. water pump; 6. honeycomb stone; 7. vertical longitudinal water pipe; 8. connector; 9. flat pipe coil; 10. turbulent permeable water diversion circle; 11. bend water pipe; 12. pressure water spraying device; 12-1. pressure water spraying port; 12-2. water spraying eye; 12-3 pressure plate; 13. water level monitor; 14. soil moisture detection device. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Reference Figure 1-2 A municipal water storage and reuse reverse irrigation system includes a rainwater storage well 1, a rainwater well cover 2, a main water pipe under a tree pool 3, a water pump 5, a honeycomb stone 6, a vertical longitudinal water pipe 7, a connector 8, a flat pipe plate 9, a turbulent permeable water diversion circle 10, a bend water pipe 11, a pressure water spraying device 12, and a water level monitor 13. The main water pipe under the tree pool 3 is connected to the rainwater storage well 1, and the water pump 5 is arranged in the rainwater storage well 1. One end of the water pump 5 is connected to a water inlet pipe, and the other end is connected to a water delivery pipe. A number of vertical longitudinal water pipes 7 are arranged on the pipe, the middle part of the vertical longitudinal water pipe 7 is connected to a plane pipe plate 9 through a connector 8, a turbulent water-permeable water diversion ring 10 is arranged circumferentially on the plane pipe plate 9, a bend water pipe 11 is connected to the top of the vertical longitudinal water pipe 7, the vertical longitudinal water pipe 7, the connector 8, the plane pipe plate 9 and the turbulent water-permeable water diversion ring 10 are all buried underground, the top of the bend water pipe 11 protrudes out of the ground and is provided with a pressure water spraying device 12, and a water level monitor 13 is arranged in the rainwater storage well 1.

[0033] The construction method of the municipal water storage and reuse reverse irrigation system comprises the following steps:

[0034] S1. After the construction of rainwater storage well 1 is completed, install water pump 5 and use underground buried wires for terminal switch control

[0035] S2. Install the water pipes, and install the longitudinal water pipes that supply 4 volumes of water to the green plants in sections;

[0036] S3 and then paved fill 20-25cm thick, paved with gravel soil diameter not exceeding 2-3cm, and then paved with 5-8cm honeycomb stone 6, and wherein the soil is embedded to form a dense structure, using a small rammer for compaction;

[0037] S4. Install the plane tube tray 9 and the turbulent permeable water diversion ring 10, the turbulent permeable water diversion ring 10 is inserted into the plane tube tray 9 5-10cm;

[0038] S5. After installation, lay a 20-25cm soil layer and then a layer of honeycomb stone 6.

[0039] Embodiment 2

[0040] On the basis of the first embodiment, the water pump 5 is an automatically controlled bottom-hung water pump 5 .

[0041] The pressure water spraying device 12 includes a pressure seal, a pressure water spraying port 12-1 and a water spraying eye 12-2, the pressure seal includes a pressure plate 12-3, and the plane pipe disc 9 is provided with two layers. When the upper layer of embedded soil reaches the level of covering the honeycomb stone 6, the upper layer of the plane pipe disc 9 is installed according to the thickness of the overall soil layer design.

[0042] Embodiment 3

[0043] On the basis of the above embodiment, a soil moisture detection device 14 is further provided, the soil moisture detection device 14 is connected to a signal feedback device, the water pump 5 is connected to a start-stop controller, and the start-stop controller can control the start and stop of the water pump 5 according to the feedback signals of the water level detector and the soil moisture detection device 14; the signal feedback device, the soil moisture detection device 14 and the start-stop controller are connected by a wired cable; the soil moisture detection device 14 is buried in a soil layer at a horizontal distance of 50-100 cm from the plane pipe coil 9.

[0044] Embodiment 4

[0045] On the basis of the above embodiment, the joint water pipe 11 is installed 30-50cm below the ground to 15-20cm above the ground, and a pressure seal is arranged on it. The pressure plate 12-3 can be flushed open by the pressure of water from above and below to prevent the entry of dust when not in use. Water can be injected from above to directly irrigate the roots of the green plants 4, and the excess water can flow back into the rainwater storage well 1. At the same time, the water at the bottom can be used in the pumping mode to achieve the purpose of centralized spraying.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A municipal water storage and reuse reverse irrigation system, comprising a rainwater storage well (1), a rainwater well cover (2), a main water pipe under a tree pool (3), a water pump (5), a honeycomb stone (6), a vertical longitudinal water pipe (7), a connector (8), a flat pipe coil (9), a turbulent permeable water diversion ring (10), a joint water pipe (11), a pressure water spraying device (12), and a water level monitor (13), characterized in that: The main water pipe (3) under the tree pit is connected to the rainwater storage well (1), and a water pump (5) is arranged in the rainwater storage well (1). One end of the water pump (5) is connected to a water inlet pipe, and the other end is connected to a water delivery pipe. A plurality of vertical longitudinal water pipes (7) are arranged on the water delivery pipe. The middle of the vertical longitudinal water pipe (7) is connected to a plane pipe disc (9) through a connector (8). A turbulent water permeable water diversion ring (10) is arranged in the circumference of the plane pipe disc (9). The top of the vertical longitudinal water pipe (7) is connected to a bend water pipe (11). The vertical longitudinal water pipe (7), the connector (8), the plane pipe disc (9) and the turbulent water permeable water diversion ring (10) are all buried underground. The top of the bend water pipe (11) protrudes from the ground and is provided with a pressure water spraying device (12). A water level monitor (13) is arranged in the rainwater storage well (1).

2. The municipal water storage and reuse reverse irrigation system according to claim 1, characterized in that: The water pump (5) is an automatically controlled bottom-hung water pump (5).

3. The municipal water storage and reuse reverse irrigation system according to claim 1, characterized in that: The pressure water spraying device (12) comprises a pressure seal, a pressure water spraying port (12-1) and a water spraying eye (12-2), and the pressure seal comprises a pressure plate (12-3).

4. The construction method of the municipal water storage and reuse reverse irrigation system according to claim 1 is characterized in that: The flat tube disc (9) is provided with multiple layers.

5. The municipal water storage and reuse reverse irrigation system according to claim 1, characterized in that: It also comprises a soil moisture detection device (14), the soil moisture detection device (14) is connected to a signal feedback device, the water pump (5) is connected to a start-stop controller, and the start-stop controller can control the start and stop of the water pump (5) according to feedback signals from the water level detector and the soil moisture detection device (14).

6. The municipal water storage and reuse reverse irrigation system according to claim 2, characterized in that: The signal feedback device, the soil moisture detection device (14) and the start-stop controller are connected by wire or wirelessly.

7. The municipal water storage and reuse reverse irrigation system according to claim 2 or 3, characterized in that: The soil moisture detection device (14) is buried in a soil layer at a horizontal distance of 50-100 cm from the plane pipe disc (9).

8. The construction method of the municipal water storage and reuse reverse irrigation system according to any one of claims 1 to 4, characterized in that: The steps include: S1. After the construction of the rainwater storage well (1) is completed, the water pump (5) is installed and the terminal switch control is performed using underground buried wires S2. Install the water pipes to supply water to the green plants (4) and install the longitudinal water pipes in place; S3. Then paved fill 20-25cm thick, paved with gravel soil with a diameter of no more than 2-3cm, and then paved with 5-8cm honeycomb stone (6), and the soil is embedded therein to form a dense structure, compacted using a small rammer; S4. Install the plane tube tray (9) and the turbulent permeable water diversion ring (10), the turbulent permeable water diversion ring (10) is inserted into the plane tube tray (9) 5-10cm; S5. After installation, lay a 20-25 cm soil layer and then a layer of honeycomb stone (6).

9. According to the construction method of the municipal water storage and reuse reverse irrigation system of claim 8, the plane pipe disc (9) is provided with multiple layers, and when the upper layer of embedded soil reaches the level of covering the honeycomb stone (6), the upper layer of plane pipe disc (9) is installed according to the designed thickness of the overall soil layer.

10. The construction method of the municipal water storage and reuse reverse irrigation system according to claim 8, characterized in that: A jointed water pipe (11) is installed 30-50 cm below the ground and 15-20 cm above the ground. A pressure seal is set on it. The pressure plate (12-3) can be opened by water pressure from the upper and lower parts to prevent dust from entering when not in use. Water can be injected from the upper part to directly irrigate the roots of green plants (4). Excess water can flow back to the rainwater storage well (1). At the same time, the water at the lower part can be used in a pumping mode to achieve the purpose of centralized spraying.

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