CN219364836U - Initial rainwater flow dividing device - Google Patents

Abstract

The utility model relates to the technical field of urban rainwater and sewage diversion, in particular to an initial rainwater diversion device which comprises a rainwater well and a diversion box, wherein the rainwater well is buried, the upper end surface of the rainwater well is flush with the ground and is provided with a rainwater grate, the underground part of the rainwater well is connected with a river drain pipe, and the river drain pipe drains middle-stage and later-stage rainwater into a river; the rainwater drainage device comprises a rainwater well, and is characterized in that the diversion box is arranged at the bottom of the rainwater well, a first diversion pipe inserted into the diversion box is arranged at the bottom of the rainwater well, a ball float valve for controlling the liquid level in the diversion box is arranged on the first diversion pipe, a second diversion pipe is connected at the bottom of the diversion box, and the second diversion pipe is communicated with a sewage pipe to drain initial rainwater into a sewage treatment plant. The initial rainwater diversion device can automatically divert the initial rainwater and the middle and later rainwater, and prevent the initial rainwater from being discharged into a river to pollute the river.

Description

Initial rainwater flow dividing device

Technical Field

The utility model relates to the technical field of urban rainwater and sewage diversion, in particular to an initial rainwater diversion device.

Background

Initial rain water, rain water at the beginning of rainfall. As the rain water dissolves a large amount of acidic gases, automobile exhaust, factory exhaust and other pollutant gases in the air at the early stage of rainfall, and after falling on the ground, the early stage of rain water contains a large amount of pollutants even exceeding the pollution degree of common urban sewage due to flushing of roofs, asphalt concrete roads and the like. If the urban rainwater drainage system is not provided with a diversion device for distinguishing the initial rainwater from the middle-stage and later-stage rainwater, all the rainwater can be finally and directly discharged into a natural water body, and the ground surface water is polluted to a certain extent, so that the diversion treatment is required to be carried out on the initial rainwater through the diversion device.

The utility model patent with the authorized bulletin number of CN218233707U discloses an initial rainwater diversion device in a rainwater inspection well, which comprises a well lid assembly and an adjusting assembly, wherein the well lid assembly comprises an identification well lid and a diversion cylinder, the identification well lid is arranged at the top of the diversion cylinder, the diversion cylinder is fixedly arranged in the inspection well, the adjusting assembly comprises an operation disc, a linkage rod and a control ball, the operation disc is rotationally connected in the identification well lid, the top of the linkage rod is fixedly arranged at the bottom of the operation disc, the bottom end of the linkage rod is fixedly arranged in the control ball, and the control ball is rotationally connected at the bottom of the diversion cylinder; the device can be at the top direct control adjusting part of sign well lid to can adjust the reposition of redundant personnel direction of rainwater under the prerequisite that does not get into the inspection shaft, convenient to use is nimble, and work efficiency improves greatly, has improved the practicality of device. However, the device has the disadvantage that the adjustment assembly is manually controlled according to the rainfall when the initial rainwater diversion work is carried out.

Disclosure of Invention

The utility model aims to solve the problem that the existing initial rainwater diversion device needs to manually control an adjusting component according to the rainfall, and provides the initial rainwater diversion device capable of solving the problem.

The rainwater diversion device comprises a rainwater well and a diversion box, wherein the rainwater well is buried, the upper end surface of the rainwater well is flush with the ground and is provided with a rainwater grate, the lower part of the rainwater well is connected with a river drain pipe, and the river drain pipe drains middle-stage rainwater and later-stage rainwater into a river; the rainwater drainage device comprises a rainwater well, and is characterized in that the diversion box is arranged at the bottom of the rainwater well, a first diversion pipe inserted into the diversion box is arranged at the bottom of the rainwater well, a ball float valve for controlling the liquid level in the diversion box is arranged on the first diversion pipe, a second diversion pipe is connected at the bottom of the diversion box, and the second diversion pipe is communicated with a sewage pipe to drain initial rainwater into a sewage treatment plant.

Further, a first filter screen is arranged in the rainwater well and is positioned above the river drain pipe.

Further, the sewage treatment device further comprises a sewage well, wherein the sewage well is buried, the upper end face of the sewage well is flush with the ground, a well cover is arranged on the upper end face of the sewage well, a communicating pipe is communicated between the sewage well and a rainwater well, and the bottom of the sewage well is communicated with the sewage pipe.

Further, the communicating pipe is arranged above the first filter screen.

Further, a second filter screen is arranged in the sewage well, and the second filter screen is positioned below the communicating pipe.

Further, the rainwater grate and the first filter screen are detachably connected with the rainwater well.

Further, the well cover and the second filter screen are detachably connected with the sewage well.

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the initial rainwater diversion device, initial rainwater enters the rainwater well and flows into the diversion box through the first diversion pipe, the initial rainwater is converged into the diversion box to cause the liquid level in the diversion box to rise, when the liquid level in the diversion box rises to a certain liquid level, the ball float valve is closed, middle-stage and later-stage rainwater cannot flow into the diversion box through the first diversion pipe any more, middle-stage and later-stage rainwater is discharged into a river channel through the river channel drain pipe, and the initial rainwater converged into the diversion box is slowly discharged to a sewage treatment plant through the second diversion pipe, so that the river channel is prevented from being polluted by the initial rainwater. According to the initial rainwater diversion device, the float valve is arranged, so that initial rainwater and middle and later rainwater can be automatically diverted, and river pollution caused by the fact that the initial rainwater is discharged into a river is prevented.

(2) According to the initial rainwater diversion device, when the rainfall is large, the middle and later rainwater can flow into the sewage well through the communicating pipe, so that the pressure of the middle and later rainwater discharged by the river drain pipe is shared, and urban waterlogging is prevented.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

fig. 1 is a schematic view showing the overall structure of the initial rainwater diversion unit in the present utility model.

Fig. 2 is a sectional view of the initial rainwater diversion device in the present utility model.

Fig. 3 is a sectional view of the initial rainwater diversion apparatus of the present utility model for diversion of initial rainwater.

In the figure: 1. a catch basin; 2. a rain grate; 3. a shunt box; 4. a first shunt; 5. a float valve; 6. a second shunt tube; 7. a sewage pipe; 8. a river drain pipe; 9. a first filter screen; 10. a bilge well; 11. a well cover; 12. a communicating pipe; 13. a second filter screen; 14. a blow-down pipe; 15. and (5) a building drain pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Specific examples:

as shown in fig. 1 and 2, the initial rainwater diversion apparatus in the present embodiment includes a rainwater well 1, a diversion tank 3 and a sewage well 10. Wherein, rainwater well 1 is buried square well, and rainwater well 1 up end flushes and is provided with rainwater grate 2 with ground, and rainwater grate 2 can dismantle with rainwater well 1 and be connected to when rainwater grate 2 has the effect of carrying out primary filtration to the rainwater, thereby rainwater grate 2 convenient to detach is convenient for clear up rainwater grate 2 and overhaul rainwater well 1 inside.

The shunt box 3 sets up in catch basin 1 bottom, and catch basin 1 bottom be provided with the first shunt tubes 4 of shunt box 3 intercommunication, specifically, catch basin 1 bottom outside is fixed with first shunt tubes 4, and first shunt tubes 4 are located the inboard upper portion of shunt box 3, are provided with ball float valve 5 on the first shunt tubes 4, and ball float valve 5 can open and close according to the liquid level in the shunt box 3 to can control the liquid level in the shunt box 3. The bottom of the shunt box 3 is provided with a second shunt pipe 6, one end of the second shunt pipe 6 is communicated with the bottom of the shunt box 3, and the other end is communicated with a sewage pipe 7. The primary rainwater enters the rainwater well 1 through the rainwater grate 2, then enters the diversion box 3 through the first diversion pipe 4, and when the primary rainwater in the diversion box 3 is converged to a certain liquid level, the float valve 5 is closed to cut off the rainwater, so that the primary rainwater and the middle-late rainwater are diverted. A sewage pipe 7 is connected to the bottom of the diversion tank 3 so that the initial rainwater is discharged into the sewage treatment plant through the second diversion pipe 6.

The rainwater well 1 lower part is provided with river course drain pipe 8, and river course drain pipe 8 one end and rainwater well 1 intercommunication, the other end and river course intercommunication to in will middle and late stage rainwater drain into the river course.

In the initial rainwater diversion device in the embodiment, initial rainwater enters a rainwater well 1 and flows into a diversion box 3 through a first diversion pipe 4, the initial rainwater is converged into the diversion box 3 to cause the liquid level in the diversion box 3 to rise, when the liquid level in the diversion box 3 rises to a certain liquid level, a ball float valve 5 is closed, middle and later stage rainwater cannot flow into the diversion box 3 through the diversion pipe any more, the middle and later stage rainwater is discharged into a river through a river drain pipe 8, and the initial rainwater converged into the diversion box 3 is slowly discharged to a sewage treatment plant through a second diversion pipe 6 and a sewage pipe 7, so that the river is prevented from being polluted by the initial rainwater.

In this embodiment, a first filter screen 9 is disposed in the catch basin 1, and the first filter screen 9 is located above the drain pipe 8 of the river and detachably connected to the catch basin 1. Through setting up first filter screen 9, can carry out secondary filtering to the rainwater that gets into catch basin 1, first filter screen 9 can dismantle with catch basin 1 and be connected, is convenient for clear up and change first filter screen 9.

In this embodiment, the sewage well 10 is buried, the upper end surface of the sewage well 10 is flush with the ground and is provided with a well cover 11, the well cover 11 is detachably connected with the sewage well 10, and the sewage well 10 is communicated with a building drain pipe 15. A communicating pipe 12 is communicated between the sewage well 10 and the catch basin 1, and the communicating pipe 12 is positioned above the first filter screen 9. The bottom of the bilge well 10 communicates with the bilge pipe 7, in particular, the bottom of the bilge well 10 communicates with a sewage drain pipe 14, and the end of the sewage drain pipe 14 away from the bilge well 10 is connected and communicates with the bilge pipe 7. A second filter screen 13 is arranged in the bilge well 10, and the second filter screen 13 is positioned below the communicating pipe 12 and is detachably connected with the bilge well 10.

The initial rainwater diversion device in the embodiment is used for communicating the sewage well 10 with the rainwater well 1, when the rainwater is large and the drainage pipe 8 of the river is not timely discharged, so that the liquid level in the rainwater well 1 rises, the middle and later rainwater can flow into the sewage well 10 through the communicating pipe 12 and flow into the sewage pipe 7 through the sewage well 10 to be discharged, the pressure of the middle and later rainwater discharged by the drainage pipe 8 of the river is shared, and urban waterlogging is prevented. The well cover 11 on top of the bilge well 10 is detachably connected with the bilge well 10 so as to facilitate maintenance in the bilge well 10. Through setting up second filter screen 13, can carry out secondary filtering to the rainwater that gets into bilge well 10, second filter screen 13 can dismantle with bilge well 10 and be connected, be convenient for clear up and change second filter screen 13.

In the present embodiment, the size of the diversion box 3 is set according to the density of the initial rainwater diversion device and the initial rainwater experience flow, so that it can be ensured that the initial rainwater can be completely converged into the diversion box 3 when rainfall occurs. The inner diameter of the second shunt tube 6 communicated with the bottom of the shunt box 3 is far smaller than the inner diameter of the river drain tube 8 and the first shunt tube 4, so that the initial rainwater entering the shunt box 3 slowly enters the sewage tube 7 through the second shunt tube 6 and is discharged to a sewage treatment plant for sewage treatment.

The working principle of the initial rainwater diversion device in the embodiment is as follows:

during rainfall, initial rainwater enters the rainwater well 1 through the rainwater grate 2 and is converged into the diversion box 3 through the first diversion pipe 4, and meanwhile, initial rainwater entering the diversion box 3 enters the sewage pipe 7 through the second diversion pipe 6 and is finally discharged into a sewage treatment plant for sewage treatment, as the inner diameter of the second diversion pipe 6 is far smaller than that of the first diversion pipe 4, initial rainwater in the diversion box 3 is gradually increased, when the liquid level rises to a certain liquid level, the floating ball valve 5 is closed, most of middle-late stage rainwater is discharged into a river channel through the river channel drain pipe 8, meanwhile, the second diversion pipe 6 is continuously discharged, the liquid level in the diversion box 3 is lowered, the floating ball valve 5 is opened, a small part of middle-late stage rainwater enters the diversion box 3, the liquid level rises again, the floating ball valve 5 is closed, and the circulation reaches an equilibrium state, as shown in fig. 3, finally, the initial rainwater and the small part of middle-late stage rainwater are discharged into the sewage treatment plant for treatment, and most of middle-late stage rainwater is discharged into the river channel, so that initial rainwater is effectively prevented from polluting the river channel.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. An initial rainwater diversion device, comprising:

the rainwater well (1), the rainwater well (1) is buried, and the upper end surface of the rainwater well (1) is flush with the ground and is provided with a rainwater grate (2);

the rainwater well drainage device comprises a diversion box (3), wherein the diversion box (3) is arranged at the bottom of the rainwater well (1), a first diversion pipe (4) communicated with the diversion box (3) is arranged at the bottom of the rainwater well (1), and the first diversion pipe (4) is positioned in the diversion box (3) and provided with a float valve (5);

one end of the second shunt tube (6) is communicated with the bottom of the shunt box (3), and the other end of the second shunt tube (6) is communicated with the sewage pipe (7);

river course drain pipe (8), river course drain pipe (8) with catch basin (1) lower part intercommunication.

2. The initial rainwater diversion device according to claim 1, wherein a first filter screen (9) is arranged in the rainwater well (1), and the first filter screen (9) is positioned above the river drain pipe (8).

3. The initial rainwater diversion device according to claim 2, further comprising a sewage well (10), wherein the sewage well (10) is buried, the upper end face of the sewage well (10) is flush with the ground and is provided with a well cover (11), a communicating pipe (12) is communicated between the sewage well (10) and the rainwater well (1), and the bottom of the sewage well (10) is communicated with the sewage pipe (7).

4. A stormwater diversion apparatus as claimed in claim 3, characterized in that the communication pipe (12) is arranged above the first screen (9).

5. The initial rainwater diversion device as claimed in claim 4, wherein a second filter screen (13) is arranged in the bilge well (10), and the second filter screen (13) is positioned below the communicating pipe (12).

6. The initial rainwater diversion device according to claim 2, characterized in that the rainwater grate (2) and the first filter screen (9) are detachably connected with the rainwater well (1).

7. The initial rainwater diversion apparatus as claimed in claim 5, wherein the well cover (11) and the second screen (13) are detachably connected to the bilge well (10).