Automatic initial rainwater collecting and discharging system

Abstract

The utility model relates to the technical field of rainwater treatment devices, and discloses an automatic initial rainwater collecting and discharging system which comprises a rainwater collecting pool, one end of the rainwater collecting pool is connected with a rainwater inlet main pipeline, a rainwater inlet valve is arranged on the rainwater inlet main pipeline, a water level sensing floating ball is arranged in the rainwater collecting pool, and a water level sensor is arranged on the water level sensing floating ball. A submersible pump is arranged at the bottom of the rainwater collecting pool and connected with a rainwater collecting pipeline, the bottom of the rainwater collecting pool is connected with a rainwater drainage pipeline, a rainwater drainage valve and a drainage flowmeter are arranged on the rainwater drainage pipeline, and the rainwater inlet valve, the water level sensing floating ball, the submersible pump and the rainwater drainage valve are connected with a first PLC. According to the automatic rainwater collection and drainage system, automatic collection and drainage of initial rainwater are achieved, and the labor cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of rainwater treatment devices, and in particular to an automatic collection and discharge system for initial rainwater. Background Art

[0002] During the production process, enterprises usually leave a lot of raw materials and waste on the ground in the factory due to material spillage, leakage, etc., which are washed into the rainwater pipe network during rainfall, causing rainwater pollution. Moreover, if it does not rain for a long time, the quality of the rainwater remaining in the pipe network will gradually deteriorate. If it is discharged directly, it will have an adverse impact on the water ecological environment. Therefore, it is necessary to collect and treat the rainwater in the initial discharge stage.

[0003] At present, the standards and requirements for the collection and discharge of initial rainwater are gradually becoming clear, and some areas have begun to implement the new standards. As time goes by, it is believed that the standards for the collection and discharge of initial rainwater will be widely required and implemented. At present, many companies are still in the initial stage of understanding the collection and discharge of initial rainwater. Some companies that implement the collection and discharge of initial rainwater are mostly manually operated and controlled. This operation requires constant attention to weather changes, consumes a lot of time and manpower, and in most cases cannot be performed in a timely manner.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the application and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the Invention

[0005] The purpose of the utility model is to provide an initial rainwater automatic collection and discharge system, which realizes the automatic collection and discharge of initial rainwater and reduces labor costs.

[0006] To achieve the above objectives, this application is implemented using the following technical solutions:

[0007] An initial automatic rainwater collection and discharge system includes a rainwater collection pool, one end of the rainwater collection pool is connected to a rainwater inlet main pipe, a rainwater inlet valve is provided on the rainwater inlet main pipe, a water level sensing float is provided inside the rainwater collection pool, a submersible pump is provided at the bottom of the rainwater collection pool, the submersible pump is connected to the rainwater collection pipe, the bottom of the rainwater collection pool is connected to a rainwater drainage pipe, a rainwater discharge valve and a discharge flow meter are provided on the rainwater drainage pipe, the rainwater inlet valve, the water level sensing float, the submersible pump and the rainwater discharge valve are connected to a first PLC, and the rainwater discharge valve and the discharge flow meter are connected to a second PLC.

[0008] Optionally, a filter box is provided at the outlet of the rainwater inlet main pipe in the rainwater collection pool.

[0009] Optionally, a pump placement pit is provided at the bottom of the rainwater collection pool, and the submersible pump is placed in the pump placement pit.

[0010] Optionally, a collection flow meter is provided on the rainwater collection pipe.

[0011] Optionally, the rainwater collection pool is a cement pool.

[0012] Optionally, the bottom of the rainwater collection pool is configured to be an inclined bottom from high to low, and the lower part of the inclined bottom is located near the pump placement pit.

[0013] Optionally, the rainwater inlet main pipe and the rainwater collection pipe are PE pipes, and the filter box is a PP box.

[0014] Optionally, the rainwater discharge valve and the rainwater inlet valve are solenoid valves.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] A rainwater collection pool is built, and a liquid level sensing float is installed in the collection pool. When the weather is clear, the rainwater inlet valve is always open and the rainwater discharge valve is always closed. The liquid level in the rainwater collection pool is constant. When it rains, rainwater continues to enter the rainwater collection pool through the pipeline. When the water level sensing float senses that the initial rainwater has collected to a certain liquid level, the first PLC controls the rainwater inlet valve to close and the submersible pump to start, pumping all the initial rainwater in the collection pool to the wastewater treatment station. When the rainwater in the rainwater collection pool is pumped out, the submersible pump is turned off, and the liquid level inside the rainwater collection pool is sensed by the water level sensing float. The first and second PLCs control the rainwater inlet valve to open and the rainwater discharge valve to open. When a continuous 24H discharge flow meter is set and there is no rainwater flowing through, the rainwater discharge valve automatically closes. This automated initial rainwater collection and discharge system realizes the automatic collection and discharge of initial rainwater, meets legal and regulatory requirements, and reduces labor costs at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This is a structural schematic diagram of an automatic initial rainwater collection and discharge system of the utility model.

[0019] Description of reference numerals:

[0020] 1. Rainwater collection tank; 2. Rainwater inlet main pipe; 3. Rainwater inlet valve; 4. Filter box; 5. Water level sensor float; 6. First PLC; 7. Rainwater collection pipe; 8. Collection flow meter; 9. Pump placement pit; 10. Submersible pump; 11. Rainwater drainage pipe; 12. Rainwater discharge valve; 13. Discharge flow meter; 14. Second PLC. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only some embodiments of the present application, rather than all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application, its application, or use. Example

[0022] An automatic collection and discharge system for initial rainwater, such as Figure 1 As shown, it includes a rainwater collection pool 1, one end of the rainwater collection pool 1 is connected to a rainwater inlet main pipe 2, a rainwater inlet valve 3 is provided on the rainwater inlet main pipe 2, a water level sensing float 5 is provided inside the rainwater collection pool 1, a submersible pump 10 is provided at the bottom of the rainwater collection pool 1, the submersible pump 10 is connected to the rainwater collection pipe 7, the bottom of the rainwater collection pool 1 is connected to a rainwater drainage pipe 11, a rainwater discharge valve 12 and a discharge flow meter 13 are provided on the rainwater drainage pipe 11, the rainwater inlet valve 3, the water level sensing float 5, the submersible pump 10 and the rainwater discharge valve 12 are connected to a first PLC 6, the rainwater discharge valve 12 and the discharge flow meter 13 are connected to a second PLC 14, a rainwater collection pool 1 is constructed, and a liquid level sensing float 5 is installed in the collection pool. When the weather is clear, the rainwater inlet valve 3 is normally open, and the rainwater discharge valve The door 12 is normally closed, and the liquid level in the rainwater collection tank 1 is constant. When it rains, rainwater continues to enter the rainwater collection tank 1 through the pipeline. When the water level sensing float 5 senses that the initial rainwater has collected to a certain liquid level, the first PLC6 controls the rainwater inlet valve to close, and the submersible pump 10 starts to pump all the initial rainwater in the rainwater collection tank 1 to the wastewater treatment station. When the rainwater in the rainwater collection tank 1 is pumped out, the submersible pump 10 is turned off, and the liquid level inside the rainwater collection tank 1 is sensed by the water level sensing float 5. The first PLC6 and the second PLC14 control the rainwater inlet valve 3 to open, and the rainwater discharge valve 12 to open. When the continuous 24H discharge flow meter 13 is set and there is no rainwater flowing through the count, the rainwater discharge valve 12 automatically closes. This automated initial rainwater collection and discharge system realizes the automatic collection and discharge of initial rainwater, meets legal and regulatory requirements, and reduces labor costs at the same time.

[0023] A pump placement pit 9 is provided at the bottom of the rainwater collection pool 1, and a submersible pump 10 is placed in the pump placement pit 9 to reduce the impact of the submersible pump 10 on the liquid level in the rainwater collection pool 1. The water level sensing float 5 produces a large error in sensing the liquid level height.

[0024] A collection flow meter 8 is provided on the rainwater collection pipe 7 to facilitate monitoring of the flow situation in the rainwater collection pipe 7 .

[0025] The rainwater collection pool 1 is a cement pool. The bottom of the rainwater collection pool 1 is set to be an inclined bottom from high to low, and the bottom of the inclined bottom is close to the pump placement pit 9. The rainwater inlet main pipe 2 and the rainwater collection pipe 7 are PE pipes, and the filter box 4 is a PP box to ensure that the entire system can be used for a long time. The bottom of the rainwater collection pool 1 is set at an angle so that the internal rainwater can flow better.

[0026] The rainwater discharge valve 12 and the rainwater inlet valve 3 are solenoid valves, which are convenient for the first PLC 6 and the second PLC 14 to control. Example

[0027] Based on Example 1, an implementation method for the interior of a rainwater collection pool is provided:

[0028] like Figure 1 As shown, a filter box 4 is provided at the outlet of the rainwater inlet main pipe 2 in the rainwater collection pool 1.

[0029] The difference from the first embodiment is that larger volume of debris in the rainwater transported by the rainwater inlet main pipe 2 is filtered to reduce the possibility of pipe blockage.

[0030] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "inner," and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are used only to explain the relative positional relationships and movement of components in a specific posture. If the specific posture changes, the directional indications will also change accordingly. These terms are used solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting this application.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0032] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An automatic collection and discharge system for initial rainwater, characterized in that: The invention comprises a rainwater collection pool (1), one end of the rainwater collection pool (1) is connected to a rainwater inlet main pipe (2), a rainwater inlet valve (3) is provided on the rainwater inlet main pipe (2), a water level sensing float (5) is provided inside the rainwater collection pool (1), a submersible pump (10) is provided at the bottom of the rainwater collection pool (1), the submersible pump (10) is connected to the rainwater collection pipe (7), the bottom of the rainwater collection pool (1) is connected to a rainwater drainage pipe (11), a rainwater discharge valve (12) and a discharge flow meter (13) are provided on the rainwater drainage pipe (11), the rainwater inlet valve (3), the water level sensing float (5), the submersible pump (10) and the rainwater discharge valve (12) are connected to a first PLC (6), and the rainwater discharge valve (12) and the discharge flow meter (13) are connected to a second PLC (14).

2. The automatic collection and drainage system for initial rainwater according to claim 1, characterized in that: The water outlet of the rainwater inlet main pipe (2) in the rainwater collection pool (1) is provided with a filter box (4).

3. The automatic collection and drainage system for initial rainwater according to claim 1, characterized in that: A pump placement pit (9) is provided at the bottom of the rainwater collection pool (1), and the submersible pump (10) is placed in the pump placement pit (9).

4. The automatic collection and drainage system for initial rainwater according to claim 1, characterized in that: The rainwater collection pipe (7) is provided with a collection flow meter (8).

5. The automatic collection and drainage system for initial rainwater according to claim 1, characterized in that: The rainwater collection pool (1) is a cement pool.

6. The automatic collection and drainage system for initial rainwater according to claim 3, characterized in that: The bottom of the rainwater collection pool (1) is configured as a bottom that slopes from high to low, and the area near the pump placement pit (9) is the lowest point of the sloped bottom.

7. The automatic collection and drainage system for initial rainwater according to claim 2, characterized in that: The rainwater inlet main pipe (2) and the rainwater collection pipe (7) are PE pipes, and the filter box (4) is a PP box.

8. The automatic collection and drainage system for initial rainwater according to claim 1, characterized in that: The rainwater discharge valve (12) and the rainwater inlet valve (3) are solenoid valves.

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