Automatic rainwater collection and diversion system

Abstract

The utility model discloses a rainwater automatic collection and diversion system, rainwater automatic collection and diversion system including factory area rainwater inspection well, initial rainwater pool, clean water pool and intelligent regulation and control subassembly, and initial rainwater pool is connected with factory area rainwater inspection well through first pipeline and is equipped with first switch valve on it, and first switch valve initial state sets up as opening, and clean water pool is connected with factory area rainwater inspection well through second pipeline and is equipped with second switch valve on it, and second switch valve initial state sets up as closing, and intelligent regulation and control subassembly includes controller and first liquid level meter, and when first liquid level meter detects that the liquid level height in initial rainwater pool reaches the preset value, controller controls first switch valve to close, simultaneously controls second switch valve to open. Rainwater automatic collection and diversion system of the utility model can automatically shunt collection initial rainwater and later clean rainwater, need not manual participation, and simultaneously will not cause misoperation etc. problem because of artificial factor, guarantees the reliability of shunt collection.

Description

Technical Field

[0001] This utility model relates to the field of rainwater drainage equipment technology, specifically to an automatic rainwater collection and diversion system. Background Technology

[0002] Initial rainwater refers to rainwater generated at the beginning of rainfall in a polluted area. It is highly polluted and cannot be directly discharged into the municipal rainwater pipe network outside the factory area. To save construction costs, most industrial projects collect initial rainwater and subsequent clean rainwater through rainwater pipe networks. Initial rainwater enters the initial rainwater pool, while subsequent clean rainwater is connected to the municipal rainwater pipe network outside the factory area.

[0003] Generally, factories use manual methods to switch between initial rainwater and later clean rainwater, which not only increases labor costs but also poses problems such as misoperation due to human factors. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to propose an automatic rainwater collection and diversion system that addresses the defects and deficiencies of the existing technology. This automatic rainwater collection and diversion system can automatically divert and collect initial rainwater and subsequent clean rainwater without human intervention, thus reducing labor costs. At the same time, it avoids problems such as misoperation due to human factors, ensuring the reliability of diversion and collection.

[0005] The rainwater automatic collection and diversion system of this utility model embodiment includes: a factory area rainwater inspection well; an initial rainwater tank, the initial rainwater tank having a first inlet on its side wall, the first inlet being connected to the factory area rainwater inspection well via a first pipe, the first pipe having a first switch valve initially set to open; a clear water tank, the clear water tank having a second inlet on its side wall, the second inlet being connected to the factory area rainwater inspection well via a second pipe, the second pipe having a second switch valve initially set to closed; and an intelligent control component, the intelligent control component including a controller and a first level gauge, the first level gauge being used to detect the liquid level height in the initial rainwater tank and being connected to the controller, when the first level gauge detects that the liquid level height in the initial rainwater tank reaches a preset value, the controller controls the first switch valve to close and simultaneously controls the second switch valve to open.

[0006] The rainwater automatic collection and diversion system of this utility model includes an initial rainwater tank connected to a rainwater inspection well in the factory area via a first pipe. A first switch valve is installed on the first pipe, initially set to open. A clear water tank is connected to the rainwater inspection well in the factory area via a second pipe, equipped with a second switch valve, initially set to closed. The intelligent control component includes a controller and a first level gauge. The first level gauge is used to detect the liquid level in the initial rainwater tank and is connected to the controller. When the first level gauge detects that the liquid level in the initial rainwater tank reaches a preset value, the controller controls the first switch valve to close. The system closes the valve and simultaneously opens the second switch valve. Thus, after the rain begins, the initial rainwater tank can collect highly polluted initial rainwater. When the collected volume reaches a high level, subsequent rainfall meets the standard for direct discharge. At this time, the intelligent control component automatically switches the output path of the rainwater inspection well in the plant area to connect with the clear water tank and disconnects the connection with the initial rainwater tank. The clear water tank then begins to collect subsequent rainwater. In other words, this application can automatically collect and divert initial rainwater and subsequent clean rainwater through the intelligent control system without human intervention, reducing labor costs and preventing problems such as misoperation due to human factors, thus ensuring the reliability of diversion and collection.

[0007] In some embodiments, the automatic rainwater collection and diversion system further includes a booster pump and an external clean rainwater inspection well. The booster pump is located in the clean water tank and connected to the external clean rainwater inspection well via a pipeline. The booster pump is used to discharge rainwater from the clean water tank into the external clean rainwater inspection well.

[0008] In some embodiments, the intelligent control component further includes a second level gauge, which is used to detect the liquid level in the clear water tank, and the controller can control the start and stop of the booster pump based on the detection value of the second level gauge.

[0009] In some embodiments, the bottom of the clear water tank is provided with a suction pit, and the lifting pump is located in the suction pit.

[0010] In some embodiments, the booster pumps are a plurality of pumps arranged at intervals along the length of the suction pit.

[0011] In some embodiments, the second level gauge is set with multiple preset values, and when the detection value of the second level gauge reaches different preset values, the controller controls different numbers of the booster pumps to start and stop.

[0012] In some embodiments, the clean rainwater inspection well outside the factory area is connected to a first main pipeline, and the outlet pipes of multiple lifting pumps are connected in parallel to the first main pipeline;

[0013] And / or, the rainwater inspection well in the factory area is connected to a second main pipeline, and the first pipeline and the second pipeline are connected in parallel at the port of the second main pipeline.

[0014] In some embodiments, both the top of the initial rainwater tank and the clear water tank are provided with inspection windows, and ladders are provided at the inspection windows.

[0015] In some embodiments, the intelligent control component further includes a rain sensor connected to the controller, and the controller includes a timing module. After the rain sensor detects that the rain has stopped, the timing module starts timing. When the timing module reaches a preset value t, the controller controls the first switching valve and the second switching valve to return to their initial settings.

[0016] In some embodiments, if the rain sensor detects rain again before the preset value t is reached, the timing module stops timing, and the timing module restarts timing from zero after the rain stops again. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an automatic rainwater collection and diversion system according to an embodiment of the present utility model.

[0018] Figure 2 This is a partial structural cross-sectional view of the rainwater automatic collection and diversion system according to an embodiment of the present utility model.

[0019] Figure label:

[0020] 1-Rainwater inspection well in the factory area; 2-First switch valve; 3-Second switch valve; 4-First level gauge; 5-Electric valve; 6-First lift pump; 7-Second lift pump; 8-Third lift pump; 9-Initial rainwater tank; 10-Clear water tank; 11-Second level gauge; 12-Controller; 13-First pipeline; 14-Second pipeline; 15-Clean rainwater inspection well outside the factory area; 16-Maintenance window; 17-Ladder; 18-Suction pit; 19-Ventilation pipe; 20-Rainwater sensor. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] like Figure 1 and Figure 2 As shown, the automatic rainwater collection and diversion system of this utility model embodiment includes a factory rainwater inspection well 1, an initial rainwater pool 9, a clear water pool 10, and an intelligent control component.

[0023] Specifically, the initial rainwater tank 9 has a first inlet on its side wall, which is connected to the rainwater inspection well 1 in the factory area via a first pipe 13. The first pipe 13 is equipped with a first switch valve 2, which is initially set to open. The clear water tank 10 has a second inlet on its side wall, which is connected to the rainwater inspection well 1 in the factory area via a second pipe 4. The second pipe 4 is equipped with a second switch valve 3, which is initially set to close. The intelligent control component includes a controller 12 and a first level gauge 4. The first level gauge 4 is used to detect the liquid level in the initial rainwater tank 9 and is connected to the controller 12. When the first level gauge 4 detects that the liquid level in the initial rainwater tank 9 has reached a preset value, the controller 12 controls the first switch valve 2 to close and simultaneously controls the second switch valve 3 to open.

[0024] Therefore, when it begins to rain, the initial rainwater enters the initial rainwater tank 9 through the first pipe 13. After collecting rainfall for a period of time, the first level gauge 4 detects that the liquid level in the initial rainwater tank 9 has reached a preset value (high level). At this time, the first level gauge 4 sends a signal to the controller 12, and the controller 12 closes the first switch valve 2 and starts the second switch valve 3. Then, the later clean rainwater enters the clean water tank 10 through the second pipe 4, realizing the collection and diversion of initial rainwater and later clean rainwater. It should be noted that when it rains in the polluted area, some pollutants enter the rainwater after being washed away by the rain, causing the initial rainwater to be polluted. This part of the rainwater cannot be directly discharged (in this application, the initial rainwater tank 9 collects this part of the rainwater). As the rainfall continues, the pollutants will be gradually absorbed, and the pollution level of the rainwater will become smaller and smaller until it meets the discharge standards. The qualified rainwater is collected by the clean water tank 10 in this application.

[0025] It should be noted that the preset value of the liquid level height needs to be determined based on the area of ​​the contaminated zone and the amount of rainfall in the rainfall area, and is not limited here.

[0026] The rainwater automatic collection and diversion system of this utility model embodiment includes an initial rainwater tank 9 connected to a factory rainwater inspection well 1 via a first pipe 13. A first switch valve 2 is installed on the first pipe 13, initially set to open. A clear water tank 10 is connected to the factory rainwater inspection well 1 via a second pipe 4. A second switch valve 3 is installed on the second pipe 4, initially set to closed. The intelligent control component includes a controller 12 and a first level gauge 4. The first level gauge 4 is used to detect the liquid level in the initial rainwater tank 9 and is connected to the controller 12. When the first level gauge 4 detects that the liquid level in the initial rainwater tank 9 has reached a preset value, the controller 12... 2. Control the first switch valve 2 to close, and simultaneously control the second switch valve 3 to open. Thus, after the rain begins, the initial rainwater tank 9 can collect highly polluted initial rainwater. When the collected volume reaches a high level, subsequent rainfall reaches the standard for direct discharge. At this time, the intelligent control component automatically switches the output path of the rainwater inspection well 1 in the plant area to connect with the clear water tank 10 and disconnects the connection with the initial rainwater tank 9. The clear water tank 10 begins to collect subsequent rainwater. That is, this application can automatically collect and divert initial rainwater and subsequent clean rainwater through the intelligent control system without human intervention, reducing labor costs. At the same time, it will not cause problems such as misoperation due to human factors, ensuring the reliability of diversion and collection.

[0027] Furthermore, such as Figure 1 As shown, the system also includes a booster pump and an external clean rainwater inspection well 15. The booster pump is located inside the clean water tank 10 and connected to the external clean rainwater inspection well 15 via a pipeline. The booster pump is used to discharge rainwater from the clean water tank 10 into the external clean rainwater inspection well 15. It should be noted that the rainwater pipe network is a gravity flow pipe. If the factory area is large, the burial depth of the end of the rainwater pipe network may be large, making it difficult for clean rainwater to enter the external rainwater pipe network. In this case, the rainwater can be discharged externally by pressurizing it with a booster pump.

[0028] In some embodiments, the intelligent control component further includes a second level gauge 11, which is used to detect the liquid level in the clear water tank 10, and the controller 12 can control the start and stop of the booster pump according to the detection value of the second level gauge 11.

[0029] In other words, when the water level in the clear water tank 10 reaches a certain height, the controller 12 can automatically control the booster pump to start pressurizing, so as to ensure that the rainwater in the clear water tank 10 can be discharged into the clean rainwater inspection well 15 outside the factory area in a timely manner.

[0030] Optionally, such as Figure 1 and Figure 2As shown, a suction pit 18 is provided at the bottom of the clear water tank 10, and the lift pump is located inside the suction pit 18. Thus, the suction pit 18 is sunk downwards relative to the clear water tank 10 by a certain space. By placing the lift pump inside the suction pit 18, the height difference between the bottom of the suction pit 18 and the liquid level of the clear water tank 10 can be utilized to meet the water suction requirements of the lift pump.

[0031] Preferably, multiple booster pumps are arranged at intervals along the length of the suction pit 18. It is understood that in areas with high rainfall, a large amount of rainwater will be generated in a short period of time, and multiple booster pumps can increase drainage efficiency as needed.

[0032] Furthermore, the second level gauge 11 is set with multiple preset values. When the detection value of the second level gauge 11 reaches different preset values, the controller 12 controls the start and stop of different numbers of lift pumps. In other words, different liquid levels require different drainage requirements. For example, when the liquid level is high, multiple lift pumps need to be turned on simultaneously to achieve timely drainage. When the liquid level drops to a low level, a certain number of lift pumps can be selectively turned off. That is, this application uses the controller 12 to control the number of lift pumps in operation according to different liquid levels, which can achieve demand balance, reduce power consumption, and thus reduce costs.

[0033] For example, such as Figure 1 and Figure 2 As shown, this application provides three lift pumps in the suction pit 18, namely the first lift pump 6, the second lift pump 7, and the third lift pump 8. The second level gauge 11 is set with four preset values, from low to high: low-low-low level, low-low level, low level, and high level. When the level of the clear water tank 10 reaches the low-low level, the first lift pump 6 is started. When the level rises to the low level, the second lift pump 7 is started. When the level rises to the high level, the third lift pump 8 is started. When the level drops to the low-low-low level, all lift pumps are shut down.

[0034] Furthermore, an electric valve 5 is installed on the outlet pipe of the booster pump. The electric valve 5 can control the opening and closing of the pipe and the degree of opening to regulate the flow rate.

[0035] In some embodiments, the clean rainwater inspection well 15 outside the plant area is connected to a first main pipeline, and the outlet pipelines of multiple booster pumps are connected in parallel to the first main pipeline. In other words, the output pipelines of multiple booster pumps are connected in parallel to the same pipeline, which optimizes the pipeline layout, reduces the number of pipelines and their total length, and thus reduces costs.

[0036] Optionally, a second main pipeline is connected to the rainwater inspection well 1 in the factory area, and the first pipeline 13 and the second pipeline 4 are connected in parallel at the port of the second main pipeline. That is, the water supply pipeline system from the rainwater inspection well 1 in the factory area to the initial rainwater tank 9 and the clear water tank 10 adopts a layout of one main pipeline and multiple branch pipelines, which reduces the number of pipelines and lowers the cost.

[0037] Preferably, such as Figure 1 As shown, both the initial rainwater tank 9 and the clear water tank 10 are equipped with inspection windows 16 on their tops, and ladders 17 are installed at the inspection windows 16. When equipment inside the tank (such as booster pumps and level gauges) malfunctions or the tank walls break or leak, maintenance personnel can enter the tank through the inspection windows 16 via the ladders 17, facilitating real-time handling of various emergencies.

[0038] Preferably, both the initial rainwater pool 9 and the clear water pool 10 are equipped with vent pipes 19 to balance the pressure inside the pool.

[0039] In some embodiments, the intelligent control component further includes a rain sensor 20, which is connected to the controller 12. The controller 12 includes a timing module. After the rain sensor 20 detects that the rain has stopped, the timing module starts timing. When the timing module reaches a preset value t, the controller 12 controls the first switching valve 2 and the second switching valve 3 to return to their initial settings. It should be noted that in conventional schemes, after a rainfall cycle ends, the collection system returns to its initial state. At this time, the initial rainwater pool 9 is often in a connected state. After the next rainfall, the rainwater will enter the initial rainwater pool 9. However, in reality, if the time interval between two rainfalls is short, the initial rainwater from the second rainfall is actually clean rainwater and should be discharged into the clean water pool 10 for collection. However, if the clean rainwater from the second rainfall enters the initial rainwater pool 9, it will increase the scale of subsequent treatment units and increase treatment costs.

[0040] To address this issue, this application proposes a delayed recovery design scheme. After a rainfall event ends, the first switch valve 2 and the second switch valve 3 are controlled to return to their initial settings after a certain period of time. If rainfall occurs again before this period of time, the rainwater from the second rainfall will still flow into the clear water tank 10 since the second switch valve 3 is still open, thus avoiding the problem of clean rainwater entering the initial rainwater tank 9.

[0041] If the interval between two rainfalls does not exceed t, the second rainfall can be considered as clean water that meets the discharge standards. If the interval between two rainfalls exceeds t, the second rainfall is initially considered as polluted water that does not meet the discharge standards and needs to be discharged into the initial rainwater pond 9. The subsequent treatment process remains unchanged and will not be described in detail here.

[0042] Furthermore, if the rain sensor 20 detects rain again before the preset value t is reached, the timing module stops timing. Once the rain stops again, the timing module restarts timing from zero. In other words, each rainfall triggers a restart before the time reset is activated, ensuring that the collection and distribution system does not malfunction.

[0043] Additionally, it should be noted that the preset value t needs to be determined based on the area of ​​the polluted zone and the amount of rainfall in the rainfall area, and is generally 3-5 days.

[0044] Specifically, taking a factory in southern China as an example, the rainwater flow rate is calculated to be 4000 L / s based on the local rainfall intensity theory. The initial rainwater volume is designed to collect rainwater within 15 minutes. The effective volume of the clear water tank 10 is designed to be no less than 30 seconds of the flow rate of the largest pump, and to meet the suction requirements of the rainwater lift pump. The effective volumes of the initial rainwater tank 9 and the clear water tank 10 are as follows:

[0045]

[0046] Three booster pumps were selected, each with a flow rate of 1350 L / s and a head of 25 m. Electric butterfly valves were designed for the inlet pipes of the initial rainwater tank 9 and the clear water tank 10. Each of the initial rainwater tank 9 and the clear water tank 10 was equipped with a level gauge, which, together with the signal from the rainwater sensor 20, was transmitted to the local controller 12. Automatic control was used to achieve automatic separation of initial rainwater and subsequent clean rainwater, as well as the discharge of subsequent clean rainwater.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic rainwater collection and diversion system, characterized in that, include: Factory area rainwater inspection wells; An initial rainwater tank is provided with a first inlet on its side wall. The first inlet is connected to the rainwater inspection well in the factory area through a first pipe. A first switch valve is provided on the first pipe. The first switch valve is initially set to open. A clear water tank, wherein a second water inlet is provided on the side wall of the clear water tank, the second water inlet is connected to the rainwater inspection well of the factory area through a second pipe, and a second switch valve is provided on the second pipe, the second switch valve being initially set to closed; The intelligent control component includes a controller and a first level gauge. The first level gauge is used to detect the liquid level in the initial rainwater tank and is connected to the controller. When the first level gauge detects that the liquid level in the initial rainwater tank reaches a preset value, the controller controls the first switching valve to close and simultaneously controls the second switching valve to open.

2. The automatic rainwater collection and diversion system according to claim 1, characterized in that, It also includes a booster pump and a clean rainwater inspection well outside the factory area. The booster pump is located in the clean water tank and connected to the clean rainwater inspection well outside the factory area through a pipeline. The booster pump is used to discharge rainwater in the clean water tank into the clean rainwater inspection well outside the factory area.

3. The automatic rainwater collection and diversion system according to claim 2, characterized in that, The intelligent control component also includes a second level gauge, which is used to detect the liquid level in the clear water tank, and the controller can control the start and stop of the booster pump based on the detection value of the second level gauge.

4. The automatic rainwater collection and diversion system according to claim 3, characterized in that, The bottom of the clear water tank is provided with a suction pit, and the lifting pump is located in the suction pit.

5. The automatic rainwater collection and diversion system according to claim 4, characterized in that, The booster pumps are multiple pumps arranged at intervals along the length of the suction pit.

6. The automatic rainwater collection and diversion system according to claim 5, characterized in that, The second level gauge is set with multiple preset values. When the detection value of the second level gauge reaches different preset values, the controller controls different numbers of the booster pumps to start and stop.

7. The automatic rainwater collection and diversion system according to claim 2, characterized in that, The clean rainwater inspection well outside the factory area is connected to the first main pipeline, and the outlet pipes of multiple lifting pumps are connected in parallel to the first main pipeline; And / or, the rainwater inspection well in the factory area is connected to a second main pipeline, and the first pipeline and the second pipeline are connected in parallel at the port of the second main pipeline.

8. The automatic rainwater collection and diversion system according to claim 1, characterized in that, Both the initial rainwater tank and the clear water tank are equipped with inspection windows on their tops, and ladders are provided at the inspection windows.

9. The automatic rainwater collection and diversion system according to claim 1, characterized in that, The intelligent control component also includes a rain sensor, which is connected to the controller. The controller includes a timing module. After the rain sensor detects that the rain has stopped, the timing module starts timing. When the timing module reaches a preset value t, the controller controls the first and second switching valves to return to their initial settings.

10. The automatic rainwater collection and diversion system according to claim 9, characterized in that, If the rain sensor detects rain again before the preset value t is reached, the timing module stops timing. Once the rain stops again, the timing module restarts timing from zero.

Images