CN111794348A

CN111794348A - Rainwater discarding device

Info

Publication number: CN111794348A
Application number: CN202010643336.5A
Authority: CN
Inventors: 谭春; 李波; 丁亮; 唐红梅
Original assignee: China Southwest Architectural Design and Research Institute Co Ltd
Current assignee: China Southwest Architectural Design and Research Institute Co Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2020-10-20
Anticipated expiration: 2040-07-07
Also published as: CN111794348B

Abstract

The invention discloses a rainwater discarding device which comprises a barrel, a water inlet pipe, a water outlet pipe and an overflow pipe, wherein the water inlet pipe, the water outlet pipe and the overflow pipe are arranged on the barrel, the position of the overflow pipe arranged on the barrel is higher than that of the water inlet pipe and that of the water outlet pipe, an overflow weir is arranged at the bottom in the barrel, the bottom of the barrel is divided into a water sealing area and a mud settling area by the overflow weir, rainwater flowing from the water inlet pipe enters the mud settling area, a discarding pipe is arranged in the water sealing area, the outlet end of the discarding pipe extends out of the barrel and is communicated with a sewage system, a rubber duckbill valve is arranged at the outlet end of the. The invention mainly realizes the integration of unpowered rainwater drainage, overflow, oil separation, sludge discharge and coarse filtration, and has multiple functions of convenient installation of prefabricated products, simple and convenient later operation and maintenance, and the like, and the functions are organically integrated into the improved device, thereby having important significance for better serving green ecological facilities.

Description

Rainwater discarding device

Technical Field

The invention belongs to the technical field of rainwater recovery systems, and particularly relates to an improved rainwater flow discarding device.

Background

China is a country with relatively lack of water resources, the water resources are not uniformly distributed in time and space, precipitation and runoff are mainly concentrated in summer due to the fact that most regions are located in subtropical monsoon climate areas, and drought disasters frequently occur in winter and spring, so that the control and utilization of rainwater are very important.

The initial rainwater is mixed with atmospheric dust and pollutants on the roof and the ground, so that the components are complex, and the pollution degree even exceeds that of urban domestic sewage by some indexes. According to the rainwater flowing through the area, the main components include tree branches and leaves, wastes, silt and a large amount of suspended matters, and if the rainwater flows through the area, the rainwater also can have other pollutants such as oil stains and the like. It is now common practice to discard the initial rain water of 5-10 min or 2-3mm rainfall thickness before the rain water enters the rain water reuse system.

The existing rainwater discarding device mostly adopts a small pipe discarding method or a volume discarding method. The waste stream of the small pipe is often discharged into a downstream rainwater pipe because the problem of odor or sewage backflow with a sewage system cannot be solved, so that initial rainwater does not enter the sewage system; the abandon a class start mode adopts electronic or mechanical component mostly, because the initial rainwater composition is complicated, very easily causes mechanical component because of silt or impurity jam and malfunctioning. The storage pool is adopted in the volume method, and after rainfall is finished, all rainwater in the storage pool is discharged into a sewage pipe network through a lifting pump, so that time and electricity are consumed.

At present, a plurality of different flow discarding devices such as a safe overflow diversion well, a sewage interception hanging basket device and a flow discarding filtering device are arranged at the front end of a rainwater recycling system, and the process is long and the equipment is complex.

Disclosure of Invention

The invention aims to: aiming at the existing problems, the rainwater flow discarding device integrates unpowered flow discarding and overflow and effectively prevents sewage backflow.

The technical scheme of the invention is realized as follows: a class device is abandoned to rainwater which characterized in that: including barrel and inlet tube, outlet pipe and the overflow pipe of setting on the barrel, the position that the overflow pipe set up on the barrel is higher than inlet tube and outlet pipe the bottom is provided with the overflow weir in the barrel, the overflow weir separates the barrel bottom for water seal district and heavy mud district, enters into to heavy mud district by the rainwater of inlet tube inflow, the water seal district is provided with abandons the flow tube, the exit end of abandoning the flow tube stretches out barrel and sewage system intercommunication the exit end of abandoning the flow tube is provided with rubber duckbill valve, rubber duckbill valve opens under certain pressure.

According to the rainwater flow abandoning device, the flow abandoning pipe is of an inverted L-shaped structure, and the inlet end of the flow abandoning pipe is communicated with the water seal area and faces downwards vertically.

According to the rainwater drainage device, the sludge discharge pump is arranged in the sludge deposition area, a sewage discharge outlet of the sludge discharge pump is connected with the sludge outlet pipe through the hose, and the sludge outlet pipe is provided with the gate valve and the check valve.

According to the rainwater drainage device, the sludge pump is connected with the barrel through the pump steel chain.

According to the rainwater drainage device, the grille for coarsely filtering rainwater is arranged at the position of the water inlet pipe.

According to the rainwater drainage device, the grating is of a basket type structure and is connected with the barrel through the grating steel chain.

According to the rainwater drainage device, the pipe orifice of the water outlet pipe is provided with the fine screen.

The rainwater drainage device is characterized in that a flushing port is arranged at the top of the barrel, the flushing port extends downwards to the inner side wall of the barrel and is connected with a flushing pipe which is annularly arranged, a plurality of flushing holes are formed in one side of the flushing pipe adjacent to the barrel, one branch of the flushing pipe extends to a fine screen of a water outlet pipe and is used for flushing the fine screen, and the other branch of the flushing pipe is connected with a drainage pipe and is used for flushing the drainage pipe.

According to the rainwater drainage device, the side wall of the barrel is provided with the ladder stand, and the top of the barrel is provided with the inspection well cover.

According to the rainwater flow discarding device, the partition plate is arranged in the barrel, the water inlet pipe and the water outlet pipe are arranged on two sides of the partition plate, the top of the partition plate is higher than the pipe tops of the water inlet pipe and the water outlet pipe, and the bottom of the partition plate is lower than the pipe bottoms of the water inlet pipe and the water outlet pipe.

The invention mainly realizes the integration of unpowered rainwater drainage, overflow, oil separation, sludge discharge and coarse filtration, and has multiple functions of convenient installation of prefabricated products, simple and convenient later operation and maintenance, and the like, and the functions are organically integrated into the improved device, thereby having important significance for better serving green ecological facilities.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a top view of the present invention.

FIG. 3 is a schematic view of the construction of the flush tube of the present invention.

The labels in the figure are: 1 is the barrel, 2 is the inspection well lid, 3 is the overflow pipe, 4 is the grid steel chain, 5 is the grid, 6 is the inlet tube, 7 is the baffle, 8 is for abandoning the flow pipe, 9 is the rubber duckbill valve, 10 is the water seal district, 11 is the mud pipe, 12 stop return valves, 13 is the gate valve, 14 is the outlet pipe, 15 is the fine mesh screen, 16 is the hose, 17 is the pump steel chain, 18 is the heavy mud district, 19 is the dredge pump, 20 is the cat ladder, 21 is the washing interface, 22 is the flushing pipe, 23 is the flushing hole, 24 is the overflow weir.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description of the present invention with reference to the accompanying drawings and embodiments will be made in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and 2, a rainwater discarding device comprises a barrel body 1 arranged below the ground on one side of a subsequent rainwater recycling device, and a water inlet pipe 6, a water outlet pipe 14 and an overflow pipe 3 arranged on the barrel body 1, forming a main structure of the prefabricated device, specifically, the overflow pipe is arranged on the left side of the water inlet pipe, the water outlet pipe is arranged on the right side of the water inlet pipe, a fine screen 15 is arranged at the opening of the water outlet pipe 14, and the rainwater recycling system enters subsequently, the overflow pipe 3 is arranged on the barrel body 1 at a position higher than the water inlet pipe 6 and the water outlet pipe 14, specifically, the bottom of the overflow pipe is higher than the top of the water inlet pipe, an overflow weir 24 is arranged at the bottom in the barrel body 1, the overflow weir 24 divides the bottom of the barrel body 1 into a water sealing area 10 and a sludge settling area 18, the sludge settling area 18 is provided with a sludge pump 19, be provided with gate valve 13 and check valve 12 on mud pipe 11, the rainwater that flows into by inlet tube 6 gets into to heavy mud district 18, and the rainwater in heavy mud district gets into the water seal district through the overflow weir, water seal district 10 is provided with abandons the flow tube 8, abandon the flow tube 8 and be the structure of falling L shape, abandon the entrance point and the water seal district 10 intercommunication and vertical downwards of flow tube 8, abandon the exit end of flow tube 8 and stretch out barrel 1 and sewage system intercommunication, abandon the exit end of flow tube 8 and be provided with rubber duckbill valve 9, rubber duckbill valve 9 is opened under certain pressure to make the barrel in the rainwater fall down to a certain water level after, can form the water seal state in abandoning flow tube department, prevent sewage system foul smell entering rainwater system to effectively prevent sewage refluence through rubber duckbill valve, because abandon the flow pipe diameter less, like DN50-DN100, the required opening pressure of rubber duckbill valve is very, the water level can still be normally opened when being lower.

The sludge discharge pump 19 is connected with the barrel 1 through a pump steel chain 17, and sludge can be manually discharged to a sewage pipe network through the sludge discharge pump in sunny days; inlet tube 6 department is provided with and is used for carrying out coarse filtration's grid 5 to the rainwater, grid 5 is basket type structure, grid 5 is connected with barrel 1 through grid steel chain 4, can effectively obstruct the great branch leaf of volume and discarded object through the grid, and the clearance is pulled with the manual lift of basket grid in sunny days.

In this embodiment, a washing interface 21 and an inspection well cover 2 are arranged on the top of the cylinder 1, the washing interface 21 extends downwards to the inner side wall of the cylinder 1 and is connected with a washing pipe 22 which is annularly arranged, one side of the washing pipe 22 adjacent to the cylinder is provided with a plurality of washing holes 23, one branch of the washing pipe 22 extends to the fine screen 15 of the water outlet pipe 14, the other branch of the washing pipe 22 is connected with the flow discarding pipe 8, the inside of the cylinder, the fine screen and the flow discarding pipe can be washed through the washing pipe in a sunny day, and the side wall of the cylinder 1 is provided with a ladder stand 20.

Wherein be provided with baffle 7 in the barrel 1, inlet tube 6 and outlet pipe 14 set up in 7 both sides of baffle, the top of baffle 7 is higher than the roof of pipe of inlet tube 6 and outlet pipe 14, the bottom of baffle 7 is less than the socle of inlet tube 6 and outlet pipe 14, and the follow-up rainwater collecting system of floaters such as barrel middle part baffle can the separation partly greasy dirt entering simultaneously plays the effect of energy dissipation, prevents to arouse bottom silt.

The improved rainwater flow discarding device integrates unpowered flow discarding, overflow, oil separation, mud discharge and coarse filtration. Get rid of the great suspended solid of volume through the hand-basket grid when the initial stage rainfall, the rainwater gets into barrel bottom, can set for abandon a class volume or directly abandon the flow pipe through the tubule footpath and arrange to sewage system, abandon the flow pipe export simultaneously and set up the duckbill valve, prevent the sewage refluence. When rainfall increases with time, the flow discarding pipe reaches the bottom drainage limit, the water level in the barrel body rises, the water level preferentially enters the subsequent rainwater collection system through the water outlet pipe, when the subsequent rainwater collection system is full, the water level of the barrel body continues to rise, and rainwater enters the overflow pipe. In the later stage of rainfall, water seal can be automatically formed along with the water level reduction of the cylinder body, and odor of the sewage system is prevented from entering the rainwater system.

The whole barrel is simple in structure, except that a mud pump and the like are needed in a mud settling area, the whole system does not need electrical equipment or complex mechanical structures, all water inlet and outlet pipelines and the barrel are matched in place before leaving a factory, the field installation is convenient and rapid, the later operation and maintenance are very simple and convenient, a good demonstration effect is achieved on green landscapes, the land falling performance is high, and the market popularization value is good.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A class device is abandoned to rainwater which characterized in that: including barrel (1) and inlet tube (6), outlet pipe (14) and overflow pipe (3) of setting on barrel (1), overflow pipe (3) are higher than inlet tube (6) and outlet pipe (14) in the position that sets up on barrel (1) the bottom is provided with overflow weir (24) in barrel (1), overflow weir (24) are separated barrel (1) bottom for water seal district (10) and heavy mud district (18), enter into to heavy mud district (18) by the rainwater that inlet tube (6) flowed in, water seal district (10) are provided with abandons flow tube (8), the exit end of abandoning flow tube (8) stretches out barrel (1) and sewage system intercommunication the exit end of abandoning flow tube (8) is provided with rubber duckbill valve (9), rubber duckbill valve (9) are opened under certain pressure.

2. The stormwater drainage device according to claim 1, wherein: abandon flow tube (8) and be the structure of falling L shape, abandon the entrance point and water seal district (10) intercommunication and vertical downward of flow tube (8).

3. The stormwater drainage device according to claim 1, wherein: the sludge settling area (18) is provided with a sludge discharge pump (19), a sewage discharge outlet of the sludge discharge pump (19) is connected with a sludge outlet pipe (11) through a hose (16), and the sludge outlet pipe (11) is provided with a gate valve (13) and a check valve (12).

4. A stormwater drainage device as claimed in claim 3, wherein: the sludge discharge pump (19) is connected with the cylinder body (1) through a pump steel chain (17).

5. The stormwater drainage device according to claim 1, wherein: a grating (5) for performing coarse filtration on rainwater is arranged at the water inlet pipe (6).

6. The stormwater drainage device according to claim 5, wherein: the grating (5) is of a basket type structure, and the grating (5) is connected with the cylinder body (1) through a grating steel chain (4).

7. The stormwater drainage device according to claim 1, wherein: a fine screen (15) is arranged at the pipe orifice of the water outlet pipe (14).

8. The stormwater drainage device according to claim 7, wherein: barrel (1) top is provided with washes interface (21), wash interface (21) downwardly extending to barrel (1) inside wall and be connected with the flushing pipe (22) of cyclic annular arrangement, flushing pipe (22) are opened with the adjacent one side of barrel and are had a plurality of washing holes (23), a branch road of flushing pipe (22) extends to fine screen cloth (15) department of outlet pipe (14) for wash fine screen cloth (15), another branch road of flushing pipe (22) is connected with abandoning flow pipe (8), is used for abandoning flow pipe (8) and washes.

9. The stormwater drainage device according to claim 1, wherein: the side wall of the cylinder body (1) is provided with a ladder (20), and the top of the cylinder body (1) is provided with an inspection well cover (2).

10. A stormwater drainage device as claimed in any one of claims 1 to 9, wherein: the water inlet pipe is characterized in that a partition plate (7) is arranged in the barrel body (1), the water inlet pipe (6) and the water outlet pipe (14) are arranged on two sides of the partition plate (7), the top of the partition plate (7) is higher than the tops of the water inlet pipe (6) and the water outlet pipe (14), and the bottom of the partition plate (7) is lower than the bottoms of the water inlet pipe (6) and the water outlet pipe (14).