CN206512842U - The first rain storage pond of supernatant gravity-elution - Google Patents

Abstract

The utility model discloses a kind of first rain storage pond of supernatant gravity-elution, including storage pond, storage pond is divided into two parts by flow-stopping plate, a part is buffer pool gallery, another part is tank main body of regulating and storing, and the top of flow-stopping plate connects buffer pool gallery with tank main body of regulating and storing, and the side upper end for tank main body of regulating and storing opens up supernatant delivery port, electrically operated valve is set before the entrance of supernatant delivery port, and the elevation of bottom of supernatant delivery port is higher than the flood level absolute altitude of receiving water body.The utility model is simple in construction, and arrangement is easy；First rain storage pond supernatant can be discharged into receiving water body by gravity stream, and supernatant extracts outer arrange without using water pump, it is not required that be discharged into sewage conduct together in company with the larger rainwater of pollution level, energy consumption is low, the velocity of discharge is fast, alleviates the burden of sewage treatment plant.

Description

Primary rain storage tank with gravity outflow of supernatant

technical field

The utility model relates to the technical field of rainwater regulation and storage, in particular to a primary rainwater regulation and storage pond in which supernatant liquid flows out by gravity.

Background technique

Before the initial runoff is formed, the initial rainwater often washes, scours, and transports pollutants in the air and on the ground. The concentration of pollutants in the initial rainwater seriously exceeds the standard, and direct discharge will cause serious pollution to the receiving water body. At the same time, the rainwater directly enters the sewage pipes It will cause the sewage pipes in places close to full capacity to be full and even cause urban waterlogging. Therefore, an initial rain storage tank is usually set up to collect and regulate the initial rain.

All the rainwater entering the primary rainwater storage tank is generally lifted by the water pump and then discharged to the sewage pipe network for treatment. Some also pump the supernatant liquid through the water pump and discharge it into the natural water body, and some recycle the supernatant liquid for irrigation or landscape use. use water. When the storage tank is large, the water volume of the supernatant will often be relatively large. At this time, if the supernatant is discharged from the storage tank through the pump operation, it will take a long time and consume more energy; if all the water in the storage tank All the rainwater is discharged to the sewage pipe network, which will greatly increase the operating load of the sewage pipes and the treatment load of the sewage treatment plant. Therefore, it is necessary to design a primary rain storage tank with fast discharge of supernatant and low energy consumption.

Utility model content

The purpose of the utility model is to provide a primary rain storage tank in which the supernatant liquid flows out by gravity. The supernatant liquid discharges quickly, is fully automatic, has low energy consumption, and greatly reduces the load on subsequent rainwater and sewage pipelines.

In order to achieve the above object, the technical solution adopted by the utility model is: a primary rain storage tank for the gravity outflow of the supernatant, including a storage tank, and the storage tank is divided into two parts by a baffle, and one part is a buffer Pool corridor, the other part is the main body of the storage tank, the upper part of the baffle connects the corridor of the buffer tank with the main body of the storage tank, and the upper end of the side of the main body of the storage tank is provided with a supernatant outlet , an electric valve is arranged in front of the entrance of the supernatant liquid outlet, and the bottom elevation of the supernatant liquid outlet is higher than the flood level elevation of the receiving water body.

The utility model 1) has a simple structure and is easy to arrange. 2) The supernatant of the initial rainwater storage tank can be discharged into the receiving water body by gravity flow, without the need to use a pump to pump it out, with low energy consumption and fast discharge speed. 3) The discharged rainwater supernatant does not pollute the receiving water body, and the supernatant does not need to be discharged into the sewage pipe together with the more polluted rainwater, which reduces the burden on the sewage treatment plant.

Further, water inlet pipes and water outlet pipes are correspondingly provided on the lower parts of the two opposite sides of the buffer pool corridor. The initial rain and the relatively clean later rainwater can be transported into the buffer tank corridor through the water inlet pipeline, and the outlet pipeline can transport the rainwater with more pollutants from the initial rain or the subsequent rainwater from the lower part of the main body of the storage tank to the sewage treatment plant for treatment.

Further, the upper end of the baffle is flush with the outer wall of the storage tank, and a water passage is provided on the upper part of the baffle to connect the corridor of the buffer tank with the main body of the storage tank. After the rainwater level of the buffer pool corridor is higher than the water passage, the rainwater can enter the main body of the storage tank through the water passage.

Further, the upper end of the baffle is lower than the outer wall of the storage tank, the upper part of the outer wall as a whole can be used as a water passage, and an additional water passage can be opened on the outer wall. At this time, the baffle acts as an overflow plate. When the water level of the buffer pool corridor is higher than the upper end of the baffle, the upper end of the entire overflow plate can be used as a water passage to directly overflow to the main body of the storage tank; A water channel is added on the flow plate to speed up the speed of rainwater entering the main body of the storage tank.

Further, one or more of grilles or hydraulic rotary weir gates are set on the water passage. The grille can be a self-cleaning horizontal grille. When the rainwater level in the corridor of the buffer pool exceeds the bottom of the water passage, the hydraulic rotary weir gate is opened at this time, and the rainwater can enter the main body of the storage tank. Floating objects are intercepted by the grille on the side of the buffer tank corridor, and will not enter the main body of the storage tank; the hydraulic rotary weir gate is always open, and only closes when the main body of the storage tank reaches the highest liquid level.

Further, the bottom of the storage tank body has a slope. The slope can be directed towards the emptying pump, which is convenient for the sludge deposited at the bottom to be cleaned up quickly when the smart injector is flushed and collected on one side to be pumped out by the emptying pump.

Further, one or more intelligent injectors are arranged at the bottom of the storage tank main body. The smart injector can thoroughly flush the bottom of the pool, and it can be rotated and sprayed for fixed-point flushing.

Further, an emptying pump is provided at the bottom of the main body of the storage tank, and the pipe of the emptying pump extends into the upper part of the buffer pool corridor. The emptying pump can discharge the sludge concentrated on one side or the heavily polluted mud-water mixture into the corridor of the buffer pool, and the mud-water mixture discharged into the corridor of the buffer pool can be sent to the sewage treatment plant through the outlet pipe.

Further, an emergency flood corridor is provided on one side of the main body of the storage tank. It can be the side near the water inlet pipe or the side near the water outlet pipe, and its position can also be set flexibly. There is too much rain in the later period, and the main body of the storage tank has reached the highest water level and cannot store water. The relatively clean rainwater in the later period can be directly discharged into the receiving water body through the emergency flood corridor.

Further, a hydraulic automatic gate is set between the emergency flood corridor and the buffer pool corridor, and an emergency flood outlet pipe is arranged at the lower part of the emergency flood corridor. When the water level of the main body of the storage tank reaches the highest water level and cannot continue to store water, the hydraulic rotary weir gate is closed, and the water level in the buffer tank corridor continues to rise. The automatic gate is opened, and the relatively clean rainwater in the later period is directly discharged into the receiving water body through the emergency flood discharge pipe at the lower part of the emergency flood discharge corridor to complete the flood discharge.

Description of drawings

Fig. 1 is a schematic diagram of the planar structure of the utility model.

Fig. 2 is a schematic diagram of the front view of the plane A-A in Fig. 1 .

Fig. 3 is a schematic diagram of the side view of the B-B plane in Fig. 1 .

detailed description

The utility model will be described in further detail below in conjunction with the accompanying drawings to facilitate a clearer understanding of the utility model, but the utility model is not limited to the following specific embodiments.

As shown in Figure 1, a primary rain storage tank with supernatant gravity outflow includes a storage tank 1, and the storage tank 1 is divided into two parts by a baffle 2, one part is a buffer tank corridor 3, and the other part For the storage tank main body 4, the baffle plate 2 is flush with the top of the entire storage tank 1, and one or more water passages 5 are arranged on the top of the baffle plate 2, and the shape of the water passage 5 can be a cuboid or It is a cylinder, and can also be designed into other shapes as required. A grid 51 is arranged on the water passage 5. The grid 51 can be a self-cleaning horizontal grid 51. A hydraulic rotary weir gate 52 is set in front of the grid 51; 2 can also be lower than the outer wall of storage tank 1, the top of the outer wall can be used as the water passage 5 as a whole, and the water passage 5 can also be set on the outer wall in addition. The upper end of the side of the storage tank main body 4 is provided with a supernatant liquid outlet 6, and an electric valve 61 is arranged in front of the entrance of the supernatant liquid outlet 6, and the bottom elevation of the supernatant liquid outlet 6 is higher than the flood level elevation of the receiving water body. The receiving water body can be a natural water body, can also be a self-built pool, and can also be a water body of a sewage treatment plant water treatment structure. The positions of the supernatant liquid outlet 6 and the electric valve 61 will depend on the supernatant liquid water level in the main body 4 of the storage tank. The determination position is set; the outlet of the supernatant liquid outlet 6 is connected with the supernatant liquid outlet pipe. The lower parts of the opposite sides of the buffer pool corridor 3 are provided with water inlet pipes 31 and outlet pipes 32 correspondingly. Flow gates control stormwater output flow. An intelligent injector 7 is arranged at the bottom of the storage tank main body 4, and the number of intelligent injectors 7 is set according to the spray coverage area. The intelligent injector 7 can automatically control the water spray, and can rotate and spray to thoroughly rinse the bottom of the pool. If there are corners that are not cleaned, it can also be rinsed with fixed-point jets. An emergency flood corridor 8 is set on one side of the main body 4 of the storage tank, and the side close to the water inlet pipe 31 can be selected. A hydraulic automatic gate 81 is set between the emergency flood corridor 8 and the buffer pool corridor 3, and the hydraulic automatic The gate 81 comprises a gate 811 and a buoyant chamber 812 next to it. The gate 811 and the buoyant chamber 812 are connected by a connecting rod. A water inlet is provided between the buoyant chamber 812 and the buffer pool corridor 3 to communicate, and the buoyant chamber 812 The water level is higher than the inflow water level of the storage tank main body 4, and the emergency flood discharge outlet pipe 82 is arranged at the lower part of the emergency flood discharge corridor 8.

As shown in Figures 1 and 2, an emptying pump 9 is provided near the baffle plate 2 at the bottom of the storage tank main body 4, and the pipeline of the emptying pump 9 extends into the buffer pool corridor 3, and the electric valve 61 discharges the supernatant The inlet of the water port 6 is intercepted, and the supernatant liquid is formed after the rainwater in the main body of the storage tank 4 settles. When it needs to be discharged, it is fully opened. The hydraulic rotary weir door 52 is in a closed state when the rainwater in the main body of the storage tank is settling. The automatic gate 81 is automatically opened during flood discharge to connect the emergency flood corridor 8 with the buffer pool corridor 3 .

As shown in Figures 1 and 3, the main body 4 of the storage tank is buried, and the supernatant outlet 6 is connected to the receiving water body. The water level, the nozzle of the intelligent injector 7 faces the baffle 2, and the bottom of the main body 4 of the storage tank forms a slope, and the slope faces the baffle 2, which is convenient for the intelligent injector 7 to scour the bottom of the pool, and the water passage 5 is arranged on the baffle 2 The upper part of the water channel 5 is provided with a grille 51, and a hydraulic rotary weir gate 52 is arranged in front of the grille 51.

The direction indicated by the arrow in Fig. 1, Fig. 2 or Fig. 3 is the direction of rainwater flow.

The mode of work of the present utility model is as follows:

In rainy days, the initial rain intercepted by the upstream enters the buffer tank corridor 3 through the water inlet pipe 31, and is discharged to the sewage treatment plant by the water outlet pipe 32 for treatment; when the liquid level continues to rise, the inlet that has not passed the water outlet pipe 32 reaches the baffle At the bottom of the water passage 5 on the top 2, the floating objects in the rainwater are intercepted in the buffer pool corridor 3 through the grille 51. At this time, the hydraulic rotating weir door 52 is opened, and the rainwater enters the storage tank through the water passage 5 The main body 4 and the electric valve 61 are closed at this time; if it is still raining when the rainwater in the storage tank main body 4 reaches the highest water level, the hydraulic rotary weir gate 52 is closed, and the rainwater level in the buffer tank corridor 3 continues to rise, and the rainwater Gradually enter the pontoon chamber 812 in the hydraulic automatic gate 81, the water level of the pontoon chamber 812 gradually rises, driving the gate 811 at the other end of the connecting rod to open, and the relatively clean rainwater in the later stage directly enters the emergency flood discharge corridor 8, and the emergency flood discharge The rainwater in the corridor 8 is directly discharged to the receiving water body through the emergency flood discharge pipe 82; if the rainwater in the storage tank main body 4 reaches the highest water level, it stops raining and no rainwater flows into the water inlet pipe 31, and the hydraulic rotary weir Door 52 is closed, and no water enters in the buoyancy chamber 812, and hydraulic automatic gate 81 is closed state, and emergency flood passageway 8 is not flooded.

When it is sunny, no rainwater is discharged into the water inlet pipe 31, and the rainwater in the main body 4 of the storage tank is to be settled for several days, and the upper part of the rainwater in the main body 4 of the storage tank forms a supernatant. When the minimum liquid level of the supernatant is lower than Or when it is flush with the bottom of the supernatant liquid outlet 6, the electric valve 61 is opened, and the supernatant is discharged to the receiving water body through the pipeline connected to the supernatant liquid outlet 6 through gravity flow. Run the emptying pump 9 to pump the remaining part of the rainwater in the storage tank main body 4 into the buffer tank corridor 3 until the liquid level drops to the monitoring liquid level of the smart injector 7, and the smart injector 7 is opened to flush and stir the lower part of the rainwater Rainwater and sedimented sludge, the sludge is concentrated at the low point along with the slope, and the bottom of the main body 4 of the storage tank is washed clean, and the emptying pump 9 is run again to discharge all the sludge and remaining rainwater into the buffer tank corridor 3 And it is sent to the sewage treatment plant for treatment by the outlet pipe 32, and now the whole storage tank 1 can carry out the next rainwater regulation and storage.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

The specific embodiments described above are only illustrative, rather than restrictive. The nouns of the structures used in the utility model are not limiting, and are only convenient for the description of the utility model. Those of ordinary skill in the art will Under the enlightenment of the first rain storage tank of the supernatant liquid gravity outflow of the utility model, many forms can also be derived without departing from the scope of protection of the purpose of the utility model and claims, and these are all described in the utility model within the scope of protection.

Claims (10)

1. a kind of supernatant liquid gravitational outflow early rain storage tank, comprises storage tank (1), it is characterized in that: described storage tank (1) is divided into two parts by baffle plate (2), and a part is The buffer tank corridor (3), the other part is the storage tank main body (4), and the upper part of the baffle plate (2) communicates the buffer tank corridor (3) with the storage tank main body (4) , the upper end of the side of the main body (4) of the storage tank is provided with a supernatant water outlet (6), and an electric valve (61) is set before the entrance of the supernatant water outlet (6), and the supernatant water outlet (6) The bottom elevation is higher than the flood level elevation of the receiving water body. 2. The primary rain storage tank according to claim 1, wherein the supernatant liquid gravity outflow is characterized in that: the lower parts of the opposite sides of the buffer tank corridor (3) are correspondingly provided with water inlet pipes (31) and water outlets pipes (32). 3. The primary rain storage tank according to claim 1, characterized in that: the upper end of the baffle plate (2) is flush with the outer wall of the storage tank (1), and the A water passage (5) is provided on the upper part of the baffle plate (2) to communicate with the buffer tank corridor (3) and the storage tank main body (4). 4. The initial rain storage tank for supernatant liquid gravity outflow according to claim 1, characterized in that: the upper end of the baffle (2) is lower than the outer wall of the storage tank (1), and the outer wall The upper part of the whole can be used as the water passage (5), and the water passage (5) can be set up on the outer wall in addition. 5. According to claim 3 or 4, the supernatant liquid gravity outflow primary rain storage tank is characterized in that: a grille (51) or a hydraulic rotary weir gate ( 52) one or more. 6 . The first rain storage tank for supernatant liquid gravity outflow according to claim 1 , characterized in that: the bottom of the main body ( 4 ) of the storage tank has a slope. 7 . 7. According to claim 1 or 6, the supernatant gravity outflow primary rain storage tank is characterized in that: the bottom of the storage tank main body (4) is provided with one or more intelligent injectors (7 ). 8. The initial rain storage tank with supernatant gravity outflow according to claim 7, characterized in that: the bottom of the main body (4) of the storage tank is provided with an emptying pump (9), and the emptying The pipeline of the pump (9) stretches into the upper part of the buffer pool gallery (3). 9. According to any one of claims 1, 3, 6 or 8, the supernatant gravity outflow primary rain storage tank is characterized in that: one side of the main body (4) of the storage tank is provided with an emergency Flood corridor (8). 10. The initial rain storage tank for supernatant liquid gravity outflow according to claim 9, characterized in that: hydraulic pressure is set between the emergency flood corridor (8) and the buffer tank corridor (3). An automatic gate (81), and an emergency flood discharge outlet pipe (82) is provided at the lower part of the emergency flood discharge corridor (8).