CN110258751A - Municipal administration rainwater regulation system - Google Patents

Abstract

The present invention relates to the technical field of sewage treatment, and in particular to a municipal rainwater regulation and storage system, comprising a rainwater collection network, a sewage interception well, a rainwater waste flow well, a rainwater filtration well, a rainwater storage tank buried underground, an integrated sewage treatment equipment, and a clean water tank buried underground, which are connected in sequence; the side wall of the sewage interception well is connected to the rainwater collection network, a rainwater grate is provided on the top of the sewage interception well, and a sewage interception hanging basket device is provided in the sewage interception well; a rainwater waste flow device is provided in the rainwater waste flow well, and the rainwater waste flow device includes a first shell, a filter screen is provided in the first shell, the filter screen is lower than the connecting water pipe between the sewage interception well and the rainwater waste flow well, a spring is hung on the filter screen, and a sphere is connected to the bottom end of the spring. In the present invention, rainwater is filtered in the sewage interception well, the initial rainwater is discarded in the rainwater waste flow well, further filtered in the rainwater filtration well, and deeply purified by the integrated sewage treatment equipment, and is discharged into the clean water tank for storage after reaching the ideal recycled water quality.

Description

A Municipal Rainwater Regulation and Storage System

technical field

The invention relates to the technical field of sewage treatment, in particular to a municipal rainwater regulation and storage system.

Background technique

At present, most cities in our country have hard road surfaces, and most of the precipitation in urban areas is discharged from the city through municipal drainage pipes. When the rainfall intensity is heavy, the drainage efficiency of the municipal drainage pipe network may be far from meeting the requirements, which may easily cause road surface water, Inconvenient transportation and potential safety hazards. At the same time, because all the precipitation is discharged from the city into the river, fresh water resources are wasted, groundwater in the urban area cannot be replenished, and the urban ecological environment is fragile.

The existing conventional method is to set up a sunken green space on both sides of the road surface. The sunken green space is a public green space whose elevation is lower than the surrounding road surface, also known as a low-lying green space. Its concept is to use the sunken open space to undertake and store Rainwater has the functions of replenishing groundwater, regulating runoff and flood detention, and reducing runoff pollution. However, generally speaking, low-lying green land has certain requirements for the depth of depression, and its soil quality has not been improved. Once it is used in a large area, it is vulnerable to Due to the influence of terrain and other conditions, the actual adjustment and storage volume is relatively low.

Therefore, it is necessary to break the urban water treatment system that uses drainage as the main means, to allow urban precipitation to penetrate into the ground as much as possible, and to build a sponge city. One of the important and urgent problems to be solved is how to quickly collect rainwater and transport it to designated catchment areas Points, and then unified filtration and water treatment.

Contents of the invention

The purpose of the present invention is to provide a municipal rainwater regulation and storage system, which has the advantages of quickly collecting rainwater and transporting it to a designated water collection point, and then performing unified filtration and water quality treatment.

The object of the above invention of the present invention is achieved through the following technical solutions: a municipal rainwater regulation and storage system, including a rainwater collection pipe network connected in sequence, a sewage interception well, a rainwater abandonment well, a rainwater filtration well, and rainwater buried in the ground Water storage tank, integrated sewage treatment equipment buried underground, clean water tank buried underground; the side wall of the sewage interception well is connected to the rainwater collection pipe network, the top of the sewage interception well is equipped with a rainwater grate, and the sewage interception well is equipped with a sewage interception hanging basket device; the rainwater abandonment well is provided with a rainwater abandonment device, and the rainwater abandonment device includes a first housing, and a filter screen is arranged in the first housing, and the filter screen is lower than the connecting water pipe between the sewage interception well and the rainwater abandonment well, filtering A spring is hung on the net, the bottom of the spring is connected to a sphere, and a horizontal water barrier is fixed on the top of the sphere. The first shell is provided with a first sewage outlet located directly below the sphere. The first sewage outlet is attached; the connecting pipe between the rainwater filter well and the rainwater abandonment well is higher than the filter screen, and an automatic filter device is installed in the rainwater filter well; One end of the water inlet is provided with a first reuse well and a first overflow pipe. The first overflow pipe is located on the top of the rainwater storage tank. A sewage pump connected to the sewage pipe is provided in the sewage well. The first water intake pump of the integrated sewage treatment equipment; the integrated sewage treatment equipment is connected with backwash pipes extending into both ends of the rainwater storage tank, and the integrated sewage treatment equipment is connected to the clean water tank through the return water pipeline; Secondary recovery well, the second recovery well is provided with a second water intake pump, and the top of the clean water tank is provided with a second overflow pipe.

By adopting the above technical scheme, the rainwater on the ground flows into the sewage interception well and the rainwater collection pipe network through the rainwater grate, and the water in the rainwater collection pipe network flows into the sewage interception well. The hanging basket in the sewage interception well can intercept larger garbage and leaves, The initial rainwater overflows into the rainwater abandonment well after being initially filtered by the interception well;

The rainwater abandonment filter device in the rainwater abandonment well relies on gravity to realize the initial rainwater abandonment. First, the initial rainwater is discharged through the first low-level open sewage outlet. After the rainwater increases, the pressure on the water retaining plate When the water flow increases, the water baffle and the ball drop, and when the water flows from the first sewage outlet to the sewage pipe, a pressure difference is formed on both sides of the first sewage outlet, so that the sphere is sucked on the first sewage outlet and the sewage pipe is closed, resulting in rainwater being discarded. The rainwater in the flow well accumulates more and more, and finally overflows into the rainwater filtration well;

The rainwater is further filtered by the automatic filter device in the rainwater filtration well, and then discharged into the rainwater storage tank for large storage. The integrated sewage treatment equipment extracts the rainwater from the rainwater storage tank for deep purification, and after reaching the ideal recycled water quality, it is discharged into the clean water tank for storage.

Preferably, a funnel is provided in the first housing, and the funnel is located between the first sewage outlet and the filter screen.

By adopting the above technical solution, the inner wall of the funnel has a guiding effect on the descent of the sphere, so that the sphere can be quickly sucked to the first sewage outlet, thereby sealing the sewage pipe.

Preferably, a square groove is provided at the center of the bottom of the funnel, the sphere is located on the central axis of the funnel, the sphere cooperates with the inner wall of the square groove, and the first sewage outlet is located on the inner wall of the square groove.

By adopting the above technical solution, the square groove has a position-limiting effect on the sphere. Once the first sewage outlet absorbs the sphere, the sphere cannot be separated from the first sewage outlet unless the water in the first casing is discharged to the tension of the spring that is greater than the first sewage outlet. The suction force on the sphere.

Preferably, the automatic filtering device includes a second housing, a bracket is fixed inside the second housing, and an inclined activated carbon filter layer is fixed on the top of the bracket, and one end of the activated carbon filter layer is higher than the rainwater abandonment well and the rainwater filter well connected water pipes.

By adopting the above technical scheme, the activated carbon can absorb particles in the rainwater, and can also intercept larger particles in the rainwater.

Preferably, a second sewage outlet is provided at the bottom of the second housing.

By adopting the above technical solution, the dirt in the second casing can be easily cleaned out from the second sewage outlet.

Preferably, the second reuse well is connected with a tap water replenishment pipe.

By adopting the above technical scheme, clean tap water is actively replenished in the clean water tank, the water pressure in the clean water tank is reduced, and groundwater is prevented from seeping into the clean water tank.

Preferably, the integrated sewage treatment equipment is connected with a pressure relief return pipe extending into the first reuse well.

By adopting the above technical solution, the integrated sewage treatment equipment actively replenishes water into the rainwater storage tank, reduces the water pressure in the rainwater storage tank, and prevents groundwater from seeping into the rainwater storage tank.

Preferably, the rainwater storage tank and the clean water tank are surrounded by waterproof geotextiles, and protective plates are arranged around the waterproof geotextiles.

By adopting the above technical scheme, the waterproof performance of the rainwater storage tank and the fresh water tank is improved, and groundwater is prevented from infiltrating.

In summary, the beneficial technical effects of the present invention are:

1. The rainwater is filtered through the sewage interception well in turn, the initial rainwater is discharged from the rainwater abandonment well, the rainwater is further filtered by the filter well, and the integrated sewage treatment equipment is deeply purified. After reaching the ideal recycled water quality, it is discharged into the clean water tank for storage;

2. The integrated sewage treatment equipment actively replenishes water into the rainwater storage tank, reduces the water pressure in the rainwater storage tank, and prevents groundwater from seeping into the rainwater storage tank.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the municipal rainwater regulation and storage system in the embodiment;

Fig. 2 is an enlarged view of part A in Fig. 1;

Fig. 3 is an enlarged view of part B in Fig. 2;

Fig. 4 is an enlarged view of part C in Fig. 2;

Fig. 5 is a schematic structural view of the rainwater storage tank and the integrated sewage treatment equipment in Fig. 1;

Fig. 6 is a structural schematic diagram of the rainwater storage tank and the clean water tank in Fig. 1 .

In the figure, 1. Rainwater collection pipe network; 2. Sewage interception well; 3. Rainwater abandonment well; 4. Rainwater filtration well; 5. Rainwater storage tank; 6. Integrated sewage treatment equipment; 7. Clean water tank; 8. Sewage intercepting hanging basket device; 9, rainwater discarding device; 91, first shell; 91a, first sewage outlet; 92, filter screen; 93, funnel; 94, square groove; 95, spring; 96, sphere; 97 , water retaining plate; 10, automatic filter device; 101, second shell; 102, support; 103, activated carbon filter layer; 11, sewage well; 12, first reuse well; 13, first overflow pipe; 14 1. Backwash pipe; 15. Second reuse well; 16. Second overflow pipe; 17. Second sewage outlet; 18. Tap water supply pipe; 19. Pressure relief return pipe; 20. Waterproof geotextile; 21. Protection 22. Rainwater grate; 23. Inspection port cover; 24. Sewage pump; 25. First water intake pump; 26. Second water intake pump; 27. Sewage pipe; 28. Water return pipe; 29. Water intake pipe; 30 , clean water pipe.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Embodiment: Fig. 1 is a municipal rainwater regulation and storage system disclosed by the present invention, including a rainwater collection pipe network 1, a sewage interception well 2, a rainwater abandonment well 3, a rainwater filtration well 4, and a rainwater storage system buried in the ground Pool 5, integrated sewage treatment equipment buried in the ground 6, clean water tank 7 buried in the ground, wherein the rainwater storage tank 5 and the clean water tank 7 are surrounded by waterproof geotextiles 20, and waterproof geotextiles 20 are surrounded by protection plate 21.

As shown in Figure 1, the rainwater collection pipe network 1 is connected to the side wall of the sewage interception well 2; 4 and the rainwater storage tank 5 are connected through connecting water pipes; the integrated sewage treatment equipment 6 and the rainwater storage tank 5 are connected through the backwash pipe 14, the pressure relief return pipe 19, and the water intake pipe 29, and the integrated sewage treatment equipment 6 is connected with the rainwater storage tank 5 The clean water tank 7 is connected through a reuse water pipe 28 , and the integrated sewage treatment equipment 6 is also connected with a sewage pipe 27 .

As shown in Figure 2, the top of the sewage interception well 2 is covered with a rainwater grate 22, and the top of the rainwater abandonment well 3 and the top of the rainwater filter well 4 is covered with a maintenance port cover 23. The rainwater on the ground flows into the sewage interception well 2 and the rainwater collection pipe network 1 through the rainwater grate 22, and the water in the rainwater collection pipe network 1 flows into the sewage interception well 2 again. Intercept sewage well 2 and be provided with intercepting sewage hanging basket device 8, intercepting sewage hanging basket device 8 comprises the hanging basket that stainless steel is made, and built-in aperture is the strainer bag of 2mm in the hanging basket, can intercept larger rubbish and leaf. There is a handle attached to the top of the hanging basket, and a hook can be used on the ground to conveniently clean out the sedimented sand in the hanging basket and the garbage generated by filtration.

During the rainfall process, the initial rainwater scours the roof and road surface, which is mixed with a lot of dust and silt, and the water quality is poor, so it should be discarded.

As shown in FIG. 3 , the initial rainwater abandonment treatment is carried out in the rainwater abandonment well 3 , and the rainwater abandonment well 3 has a rainwater abandonment device 9 . The rainwater abandonment device 9 is made up of a first housing 91 , a filter screen 92 , a spring 95 , a water retaining plate 97 , a sphere 96 , and a funnel 93 . The filter screen 92 is horizontally fixed in the first housing 91 , and the filter screen 92 is lower than the connecting water pipe between the sewage interception well 2 and the rainwater disposal well 3 , and lower than the connecting water pipe between the rainwater filtering well 4 and the rainwater disposal well 3 . The top of the spring 95 is hung on the filter screen 92, the bottom end of the spring 95 is connected with the spheroid 96, and the top of the spheroid 96 is fixedly connected with the horizontal water retaining plate 97.

As shown in Figure 3, the funnel 93 is also vertically fixed in the first housing 91, the bottom center of the funnel 93 is provided with a square groove 94, the sphere 96 is positioned on the central axis of the funnel 93, the sphere 96 and the square groove 94 Inner wall fit. The inner side wall of the square groove 94 is provided with a first sewage outlet 91a, the first sewage outlet 91a is connected to the sewage pipe 27 (see Figure 5), the first sewage outlet 91a is located directly below the sphere 96, and the funnel 93 is located between the first sewage outlet 91a and Between the filter screens 92, the surface of the sphere 96 can be attached to the first sewage outlet 91a.

As shown in FIG. 3 , the inner wall of the funnel 93 has a guiding effect on the descent of the ball 96 , so that the ball 96 can be quickly sucked to the first sewage outlet 91 a, thereby closing the sewage pipe 27 . The square groove 94 has a position-limiting effect on the sphere 96. Once the first sewage outlet 91a sucks the sphere 96, the sphere 96 cannot break away from the first sewage outlet 91a, unless the water in the first housing 91 is discharged to the tension of the spring 95 greater than that of the first sewage outlet. The suction force of a sewage outlet 91a to the spheroid 96.

As shown in FIG. 4 , an automatic filtering device 10 is arranged in the rainwater filtering well 4 . Automatic filtering device 10 is made up of second housing 101, support 102, activated carbon filter layer 103, wherein support 102 and activated carbon filter layer 103 are all positioned in the second housing 101, activated carbon filter layer 103 is fixed on the top of support 102 in an inclined shape, And one end of the activated carbon filter layer 103 is higher than the connecting water pipe between the rainwater abandonment well 3 and the rainwater filtering well 4 , and the other end of the activated carbon filtering layer 103 is lower than the connecting water pipe between the rainwater filtering well 4 and the rainwater storage tank 5 . The bottom of the second housing 101 is also provided with a second sewage outlet 17, and the second sewage outlet 17 is used to remove solid debris filtered by the activated carbon filter layer 103 in the rainwater.

As shown in Figure 5, a sewage well 11 is provided in the rainwater storage tank 5, and the sewage drainage well 11 is arranged at one end of the rainwater storage tank 5 to receive the water from the rainwater filter well 4, and the other end of the rainwater storage tank 5 is provided with a first reuse well 12 And the first overflow pipe 13, wherein the first overflow pipe 13 is located at the top of the rainwater storage tank 5. A sewage pump 24 is arranged in the sewage well 11, and the sewage pump 24 is connected with a sewage pipe 27. A first water intake pump 25 is provided in the first reuse well 12 , and the first water intake pump 25 is connected to the integrated sewage treatment equipment 6 through a water intake pipe 29 .

As shown in Figure 5, the backwash pipe 14 connected to the integrated sewage treatment equipment 6 extends into the two ends of the rainwater storage tank 5, and clean water is introduced into the backwash pipe 14 to flush the rainwater storage tank 5 in the reverse direction. Prevent blockage in the rainwater storage tank 5. The pressure relief return pipe 19 connected to the integrated sewage treatment equipment 6 extends into the first reuse well 12, and the integrated sewage treatment equipment 6 actively replenishes water into the rainwater storage tank 5 through the pressure relief return pipe 19 to reduce the rainwater storage tank 5. The water pressure in prevents groundwater from seeping water in the rainwater storage tank 5.

As shown in Figure 6, the clean water tank 7 is provided with a second recycling well 15, the second recycling well 15 is provided with a second water intake pump 26, the second water intake pump 26 is connected with a clean water pipe 30, and the top of the clean water tank 7 is provided with There is a second overflow pipe 16 . The second back with well 15 is connected with tap water replenishment pipe 18, utilizes tap water replenishment pipe 18 to actively replenish clean tap water in clean water tank 7, reduces the water pressure in clean water tank 7, prevents groundwater from seeping in clean water tank 7.

The implementation principle of this embodiment is: the rainwater on the ground flows into the sewage interception well 2 and the rainwater collection pipe network 1 through the rainwater grate 22, the water in the rainwater collection pipe network 1 flows into the sewage interception well 2 again, and the hanging water in the sewage interception well 2 The basket can intercept larger garbage and leaves, and the initial rainwater overflows into the rainwater abandonment well 3 after being preliminarily filtered by the interception well 2;

The rainwater abandonment filter device in the rainwater abandonment well 3 relies on the action of gravity to realize the abandonment of the initial rainwater. First, the initial rainwater is discharged through the first sewage outlet 91a with a low exposure. The pressure on 97 increases, the water baffle 97 and the ball 96 descend, and when the water flows from the first sewage outlet 91a to the sewage pipe 27, a pressure difference is formed on both sides of the first sewage outlet 91a, thereby sucking the ball 96 in the first sewage outlet. Close the sewage pipe 27 on the sewage outlet 91a, causing the rainwater in the rainwater abandonment well 3 to accumulate more and more, and finally overflow into the rainwater filter well 4;

After being further filtered by the automatic filter device 10 in the rainwater filter well 4, the rainwater is discharged into the rainwater storage tank 5 and stored in a large amount. Store in the clean water tank 7, start the second water intake pump 26 when taking it, and export it with the clean water pipe 30.

The embodiments of this specific implementation mode are all preferred embodiments of the present invention, and do not limit the scope of protection of the present invention accordingly. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention should be covered by the present invention. within the protection scope of the present invention.

Claims (8)

1. a kind of municipal rainwater storage system, it is characterised in that: including sequentially connected rainwater-collecting pipe network (1), cut dirty well (2), rainwater discharging well (3), type rainwater filter well (4), the rainwater tank (5) for being embedded in underground, the integrated sewage water for being embedded in underground Processing equipment (6), the filtered water tank (7) for being embedded in underground；Dirty well (2) side wall connection rainwater-collecting pipe network (1) is cut, dirty well (2) is cut and pushes up Portion is equipped with rain perforaled strainer (22), cuts in dirty well (2) and is equipped with Prefabricated combined septic tank device (8)；Rain water drainage is equipped in rainwater discharging well (3) Device (9), rainwater flow-discarding device (9) include first shell (91), are equipped with filter screen (92) in first shell (91), filter screen (92) lower than the connection water pipe for cutting dirty well (2) and rainwater discharging well (3), filter screen (92), which is hung oneself, to be had spring (95), spring (95) Bottom end is connected with sphere (96), and fixed horizontal water fender (97) at the top of sphere (96), first shell (91), which is equipped with, is located at ball The first sewage draining exit (91a) immediately below body (96), the first sewage draining exit (91a) connect sewage pipe (27), and sphere (96) surface can be with First sewage draining exit (91a) fitting；Type rainwater filter well (4) and the connection water pipe of rainwater discharging well (3) are higher than filter screen (92), rainwater Automatic filtering unit (10) are equipped in screened well (4)；Rainwater tank (5) is equipped with sewage well (11) close to one end of water inlet, rain Water tank (5) is equipped with the first reuse well (12) and the first overflow pipe (13), the first overflow pipe (13) position far from one end of water inlet At the top of rainwater tank (5), the dredge pump (24) of connection sewage pipe (27), the first reuse well (12) are equipped in sewage well (11) Interior the first water pump (25) equipped with connecting integration sewage disposal device (6)；Integrated sewage treating apparatus is connected on (6) Protrude into the backwash tube (14) at rainwater tank (5) both ends, integrated sewage treating apparatus (6) by reuse waterpipe (28) with Filtered water tank (7) connection；It is equipped with the second reuse well (15) in filtered water tank (7), is equipped with the second water pump in the second reuse well (15) (26), the second overflow pipe (16) are equipped at the top of filtered water tank (7).

2. a kind of municipal rainwater storage system according to claim 1, it is characterised in that: set in the first shell (91) Have funnel (93), funnel (93) is between the first sewage draining exit (91a) and filter screen (92).

3. a kind of municipal rainwater storage system according to claim 2, it is characterised in that: the bottom of the funnel (93) is just Center is equipped with square groove (94), and sphere (96) is located on the central axes of funnel (93), the inner wall of sphere (96) and square groove (94) Cooperation, the first sewage draining exit (91a) are located on the inner wall of square groove (94).

4. a kind of municipal rainwater storage system according to claim 1, it is characterised in that: the automatic filtering unit (10) It including second shell (101), is fixed with bracket (102), is fixed at the top of bracket (102) inclined in second shell (101) The active carbon filtering layer (103) of shape, one end of active carbon filtering layer (103) are higher than the company of rainwater discharging well (3) and type rainwater filter well (4) Water receiving pipe.

5. a kind of municipal rainwater storage system according to claim 4, it is characterised in that: second shell (101) bottom Portion is equipped with the second sewage draining exit (17).

6. a kind of municipal rainwater storage system according to claim 1, it is characterised in that: the second reuse well (15) is even It is connected to tap water water supply pipe (18).

7. a kind of municipal rainwater storage system according to claim 1, it is characterised in that: the integrated sewage disposal is set The pressure release return pipe (19) for protruding into the first reuse well (12) is connected on standby (6).

8. a kind of municipal rainwater storage system according to claim 1, it is characterised in that: the rainwater tank (5) and The surrounding of filtered water tank (7) is with waterproof geotextiles (20), and waterproof geotextiles (20) are all around equipped with protection board (21).