A green roof wastewater collection and treatment irrigation system

Abstract

This utility model provides a wastewater collection, treatment, and irrigation system for green roofs, belonging to the field of green building technology. The system includes a collection structure, a purification structure, and an irrigation structure. The collection structure includes a collection trough located at the bottom of the green roof, with an outlet on the trough. The purification structure includes a frame with two interconnected purification tanks, a first purification tank and a second purification tank. The inlet of the first purification tank is connected to the outlet, and the second purification tank has a drain pipe. A collection tank is located below the second purification tank and is connected to the drain pipe. The irrigation structure includes multiple spray heads connected to the collection tank. This system can collect wastewater from green roofs and filter and purify the collected water, ensuring that the purified water meets the irrigation needs of the green roof and thus reducing water waste.

Description

Technical Field

[0001] This utility model relates to the field of green building technology, and in particular to a green roof wastewater collection, treatment and irrigation system. Background Technology

[0002] Rooftop greening, as an innovative form of urban greening, plays a vital role in increasing urban green space, mitigating the urban heat island effect, and reducing building energy consumption. However, the irrigation water demand during rooftop greening is enormous. Traditional irrigation methods mainly rely on urban water supply systems, which not only increases the burden on urban water supply but also easily leads to water waste. Rainwater, as a natural, clean, and cost-free water resource, is an ideal solution for rooftop greening irrigation by collecting it. Currently, some technologies and devices for rooftop rainwater harvesting exist on the market. These devices collect rainwater through simple collection structures, but the collected rainwater usually contains a large amount of solid impurities, such as leaves and silt. These impurities easily clog irrigation pipes and sprinkler / drip irrigation systems, seriously affecting the normal operation of the irrigation system. Most existing technologies lack effective purification methods for collected rainwater, resulting in excessive impurities in the stored rainwater, making it difficult to meet the water quality requirements for rooftop greening irrigation, thus affecting irrigation efficiency and plant growth and development.

[0003] Therefore, it is necessary to improve the existing methods of wastewater collection and irrigation from green roofs in order to overcome the shortcomings of the existing technology. Utility Model Content

[0004] To overcome the problems existing in related technologies, the purpose of this utility model is to provide a green roof wastewater collection and treatment irrigation system. This system can collect wastewater from green roofs and filter and purify the collected water so that the purified water can meet the irrigation needs of green roofs, thereby reducing the waste of water resources.

[0005] A green roof wastewater collection, treatment, and irrigation system includes:

[0006] A collection structure, comprising a collection trough located at the bottom of the green roof, the collection trough having a water outlet;

[0007] The purification structure includes a frame on which two interconnected first purification boxes and second purification boxes are mounted. The inlet of the first purification box is connected to the outlet, and the second purification box is equipped with a drain pipe. A water collection tank is located below the second purification box and is connected to the drain pipe.

[0008] An irrigation structure, comprising multiple sprinkler heads connected to a water collection tank.

[0009] In a preferred embodiment of this invention, a partition is provided between the first purification box and the second purification box, and the partition is provided with a plurality of communication ports, which are arranged on the partition along the height direction of the partition.

[0010] In a preferred embodiment of this invention, the top of the water collection tank is funnel-shaped, the outlet of the drain pipe is located above the water collection tank, and a first filter screen is also provided on the top of the water collection tank.

[0011] In a preferred embodiment of this invention, the purification structure further includes an additive structure for adding additives to the purification chamber. The additive structure includes a storage tank, a connecting pipe, and a pressure pump. The storage tank is disposed on one side of the frame. The connecting pipe includes a first end and a second end disposed opposite to each other. The first end of the connecting pipe is connected to the storage tank, and the second end is disposed above the first purification chamber.

[0012] The pressure pump is located at the second end of the connecting pipe and is connected to the connecting pipe.

[0013] In a preferred embodiment of this invention, a mounting frame is provided above both the first purification box and the second purification box, and a stirring structure is provided on the mounting frame.

[0014] The stirring structure includes a stirring paddle and a drive motor. The drive motor is fixed on the mounting frame, and the stirring paddle is placed in the purification box and fixedly connected to the drive motor.

[0015] In a preferred embodiment of this invention, several drain pipes are provided on the side wall of the second purification box, and the connection point of each drain pipe to the second purification box is located at the top of the side wall of the second purification box.

[0016] In a preferred embodiment of this invention, a drain pipe is provided at the bottom of the side wall of the second purification box, and a drain valve is provided at the drain pipe.

[0017] In a preferred embodiment of this invention, the bottom of the collection tank is inclined toward the outlet side, and a second filter screen is provided at the outlet.

[0018] The beneficial effects of this utility model are as follows:

[0019] This utility model provides a wastewater collection, treatment, and irrigation system for green roofs. The system includes a collection structure, a purification structure, and an irrigation structure. The collection structure includes a collection trough located at the bottom of the green roof, with an outlet on the trough. The purification structure includes a frame with two interconnected purification tanks, a first purification tank and a second purification tank. The inlet of the first purification tank is connected to the outlet, and the second purification tank has a drain pipe. A collection tank is located below the second purification tank and is connected to the drain pipe. The irrigation structure includes multiple spray heads connected to the collection tank. This system can collect wastewater from green roofs and filter and purify the collected water, ensuring that the purified water meets the irrigation needs of the green roof and reducing water waste. The system operates as follows: Wastewater from the green roof (including rainwater and residual irrigation water) flows into the collection trough, undergoes preliminary filtration through the filter screen at the outlet, and then enters the first purification tank through a pipe. The wastewater undergoes two filtrations in the first and second purification tanks, meeting irrigation water quality standards. The purified water flows into a collection tank for storage through a drain pipe. When irrigation is needed, a water pump delivers the purified water from the collection tank to each sprinkler head to irrigate the plants on the green roof. This system effectively collects and treats wastewater from green roofs, transforming potentially wasted wastewater into usable irrigation water, reducing reliance on the city's water supply system, significantly improving water resource utilization efficiency, and aligning with the concept of water conservation. Because multiple filtration devices are incorporated into the collection and purification structures, impurities in the water are effectively removed, preventing clogging of irrigation pipes and sprinkler heads, reducing system maintenance costs and failure rates, and ensuring stable operation of the irrigation system. Attached Figure Description

[0020] Figure 1 This is a perspective view of the purification structure provided in an embodiment of this utility model;

[0021] Figure 2 yes Figure 1 The front view of the purification structure.

[0022] Figure label:

[0023] 1. Frame; 11. First purification chamber; 12. Second purification chamber; 121. Drain pipe; 122. Sewage pipe; 13. Water collection tank; 2. Stirring structure; 21. Drive motor; 3. Adding structure; 31. Liquid storage tank; 32. Connecting pipe; 33. Pressure pump. Detailed Implementation

[0024] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0025] Currently, some technologies and devices for rooftop rainwater harvesting exist on the market. These devices collect rainwater through simple collection structures, but the collected rainwater usually contains a large amount of solid impurities, such as leaves and silt. These impurities easily clog irrigation pipes and sprinkler / drip irrigation systems, seriously affecting the normal operation of the irrigation system. Most existing technologies lack effective purification methods for the collected rainwater, resulting in excessive impurities in the stored rainwater, making it difficult to meet the water quality requirements for rooftop greening irrigation, thus affecting irrigation efficiency and plant growth and development.

[0026] Based on this, this application provides a green roof wastewater collection and treatment irrigation system.

[0027] Example

[0028] like Figures 1-2 As shown in the figure, this embodiment provides a green roof wastewater collection, treatment, and irrigation system, characterized in that it includes:

[0029] A collection structure, comprising a collection trough located at the bottom of the green roof, the collection trough having a water outlet;

[0030] The purification structure includes a frame 1, on which two interconnected first purification boxes 11 and second purification boxes 12 are mounted; the inlet end of the first purification box 11 is connected to the outlet, and the second purification box 12 is provided with a drain pipe 121; a water collection tank 13 is provided below the second purification box 12, and the water collection tank 13 is connected to the drain pipe 121.

[0031] An irrigation structure, comprising multiple sprinkler heads, wherein the sprinkler heads are connected to the water collection tank 13.

[0032] Specifically, the sprinkler heads are rotary nozzles made of copper, which are corrosion-resistant and have good atomization effects, enabling them to evenly spray water onto the plants on the green roof. Multiple sprinkler heads are arranged at certain intervals (usually 1-1.5m) above the green roof, connected to the main pipeline via branch pipes. The main pipeline is connected to the water collection tank 13. A water pump and a flow control valve are installed on the main pipeline. The water pump delivers water from the water collection tank 13 to the sprinkler heads, and the flow control valve regulates the irrigation water volume. In addition, the irrigation structure includes a controller electrically connected to a level sensor, a solenoid valve, the water pump, and the flow control valve, enabling automatic control of the irrigation process based on the water level in the water collection tank 13 and a preset irrigation program.

[0033] The aforementioned green roof wastewater collection, treatment, and irrigation system includes a collection structure, a purification structure, and an irrigation structure. The collection structure includes a collection trough located at the bottom of the green roof, with an outlet on the trough. The purification structure includes a frame 1, on which two interconnected first purification tanks 11 and second purification tanks 12 are mounted. The inlet of the first purification tank 11 is connected to the outlet, and the second purification tank 12 has a drain pipe 121. A collection tank 13 is located below the second purification tank 12 and is connected to the drain pipe 121. The irrigation structure includes multiple sprinkler heads connected to the collection tank 13. This system can collect wastewater from the green roof and filter and purify the collected water, ensuring that the purified water meets the irrigation needs of the green roof, thereby reducing water waste. The system operates as follows: wastewater from the green roof (including rainwater and residual irrigation water) flows into the collection trough, undergoes preliminary filtration through the filter screen at the outlet, and then enters the first purification tank 11 through a pipe. Wastewater undergoes two filtration and purification processes in the first purification tank 11 and the second purification tank 12 to meet irrigation water quality standards. The purified water flows into the collection tank 13 for storage through the drain pipe 121. When irrigation is needed, a water pump delivers the purified water from the collection tank 13 to each sprinkler head to irrigate the plants on the green roof. This system effectively collects and treats wastewater from the green roof, transforming potentially wasted wastewater into usable irrigation water, reducing reliance on the urban water supply system, significantly improving water resource utilization efficiency, and aligning with the concept of water conservation. The multiple filtration devices in the collection and purification structures effectively remove impurities from the water, preventing clogging of irrigation pipes and sprinkler heads, reducing system maintenance costs and failure rates, and ensuring stable operation of the irrigation system.

[0034] Furthermore, a partition is provided between the first purification box 11 and the second purification box 12, and the partition is provided with a plurality of communication ports, which are arranged on the partition along the height direction of the partition.

[0035] Furthermore, the top of the water collection tank 13 is funnel-shaped, the outlet of the drain pipe 121 is located above the water collection tank 13, and a first filter screen is also provided on the top of the water collection tank 13.

[0036] Furthermore, the purification structure also includes an addition structure 3 for adding additives to the purification chamber. The addition structure 3 includes a liquid storage tank 31, a connecting pipe 32, and a pressure pump 33. The liquid storage tank 31 is disposed on one side of the frame 1. The connecting pipe 32 includes a first end and a second end disposed opposite to each other. The first end of the connecting pipe 32 is connected to the liquid storage tank 31, and the second end is disposed above the first purification chamber 11.

[0037] The pressure pump 33 is located at the second end of the connecting pipe 32 and is connected to the connecting pipe 32.

[0038] Furthermore, both the first purification box 11 and the second purification box 12 are provided with mounting frames, and the mounting frames are provided with stirring structures 2;

[0039] The stirring structure 2 includes a stirring paddle and a drive motor 21. The drive motor 21 is fixed on the mounting frame, and the stirring paddle is placed in the purification box and fixedly connected to the drive motor 21.

[0040] Furthermore, several drain pipes 121 are provided on the side wall of the second purification box 12, and the connection point of each drain pipe 121 to the second purification box 12 is located at the top of the side wall of the second purification box 12.

[0041] Furthermore, a drain pipe 122 is provided at the bottom of the side wall of the second purification box 12, and a drain valve is provided at the drain pipe 122.

[0042] Furthermore, the bottom of the collection tank is inclined towards the outlet side, and a second filter screen is provided at the outlet.

[0043] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0044] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0045] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0046] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wastewater collection, treatment, and irrigation system for green rooftops, characterized in that, include: A collection structure, comprising a collection trough located at the bottom of the green roof, the collection trough having a water outlet; The purification structure includes a frame on which two interconnected first purification boxes and second purification boxes are mounted. The inlet of the first purification box is connected to the outlet, and the second purification box is equipped with a drain pipe. A water collection tank is located below the second purification box and is connected to the drain pipe. An irrigation structure, comprising multiple sprinkler heads connected to a water collection tank.

2. The green roof wastewater collection, treatment, and irrigation system according to claim 1, characterized in that: A partition is provided between the first purification box and the second purification box. The partition has a plurality of communication ports, which are arranged along the height direction of the partition.

3. The green roof wastewater collection, treatment, and irrigation system according to claim 2, characterized in that: The top of the water collection tank is funnel-shaped, the outlet of the drain pipe is located above the water collection tank, and a first filter screen is also provided on the top of the water collection tank.

4. The green roof wastewater collection, treatment, and irrigation system according to any one of claims 1-3, characterized in that: The purification structure also includes an additive structure for adding additives to the purification chamber. The additive structure includes a liquid storage tank, a connecting pipe, and a pressure pump. The liquid storage tank is located on one side of the frame. The connecting pipe includes a first end and a second end that are arranged opposite to each other. The first end of the connecting pipe is connected to the liquid storage tank, and the second end is located above the first purification chamber. The pressure pump is located at the second end of the connecting pipe and is connected to the connecting pipe.

5. The green roof wastewater collection, treatment, and irrigation system according to claim 4, characterized in that: Both the first purification box and the second purification box are equipped with mounting frames on their tops, and the mounting frames are equipped with stirring structures. The stirring structure includes a stirring paddle and a drive motor. The drive motor is fixed on the mounting frame, and the stirring paddle is placed in the purification box and fixedly connected to the drive motor.

6. The green roof wastewater collection, treatment, and irrigation system according to any one of claims 1-3, characterized in that: Several drain pipes are provided on the side wall of the second purification box, and the connection point of each drain pipe to the second purification box is located at the top of the side wall of the second purification box.

7. The green roof wastewater collection, treatment, and irrigation system according to any one of claims 1-3, characterized in that: The bottom of the side wall of the second purification box is also provided with a drain pipe, and a drain valve is provided at the drain pipe.

8. The green roof wastewater collection, treatment, and irrigation system according to claim 2, characterized in that: The bottom of the collection tank is inclined toward the outlet, and a second filter screen is provided at the outlet.

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