CN217537156U - Rainwater collection system for desert area - Google Patents

Abstract

The utility model discloses a rainwater collecting system for desert areas, which comprises a front rainwater filtering well, wherein one end of the front rainwater filtering well is communicated with a rainwater collecting pool through a water pipe; the bottom end of the rainwater collecting pool is provided with a penetration pool, and one end of the rainwater collecting pool is connected to the access hole through a pipeline. The device not only can collect, purify and recycle city rainwater or surface runoff, can also alleviate city rainfall flood pressure, purifies the pollutant in the rainwater, improves rainwater utilization efficiency, solves non-point source pollution and the extremely deficient problem of water resource to desert area sponge city and has important referential meaning.

Description

Rainwater collection system for desert area

Technical Field

The utility model belongs to the technical field of the rainwater is collected, in particular to a rainwater collection system for desert area.

Background

Compared with the conventional regions, the desert regions are more deficient in underground water resources and have the meteorological hydrological characteristics of high annual air temperature, short rainfall period, large evaporation capacity and the like. In recent years, the problem of road hardening is increasingly serious along with the accelerated urbanization process in desert areas, so that cities can only depend on municipal pipe networks for water drainage when facing strong rainfall, waterlogging disasters are frequent, runoff pollution is serious, certain threats are brought to lives and properties of citizens, and the normal life rhythm of the cities is influenced; but also falls into the embarrassment of dry and water shortage after a short rain period. The phenomena of waterlogging when raining and drought after raining make urban water ecology in desert regions face two extremes: on one hand, the urban inland inundation is serious during rainfall, and the management of rainfall flood becomes a potential safety hazard influencing urban development; on the other hand, the urban water shortage in the desert area is serious, the water resource supply is serious and especially the contradiction that a large amount of rainwater is not effectively collected and utilized to flow away and be discharged in a whitish way in the severe water shortage in the arid period and the transient rainfall period is serious day by day, so that a drainage system is increasingly overloaded.

Most of the conventional rainwater collection systems in the conventional area are researched at present, and few researches are carried out on the rainwater collection systems in the desert area, but the conventional rainwater collection and utilization have a plurality of defects, for example, the conventional rainwater collection and utilization generally only have single functions, such as rainwater collection, rainwater infiltration, rainwater purification and other functions which are independently arranged and independently operated, do not have the function of well linking all parts, and cannot well fully utilize rainwater resources; and natural rainwater can carry a large amount of subaerial domestic waste and pollutant, this just makes in time directly discharge the natural environment from the rainwater that the source obtained purifying, and this pollution degree that can aggravate the natural water.

In summary, the conventional rainwater collection and utilization system in the desert area cannot meet the requirements of sponge city construction in the desert area, so that a set of complete and suitable rainwater collection system in the desert area is necessarily developed by combining the weather hydrological characteristics of high temperature, short rainfall period, large evaporation capacity and the like of the sponge city in the desert area all the year round, the rainwater is purified by adopting a suitable filtration and purification system at the rainwater collection source, and then the groundwater is secondarily utilized or replenished, so that the problem of water resource shortage can be effectively solved, flood disasters caused by rainstorm can be coped with, and the water resource is fully utilized to improve the ecological environment.

Disclosure of Invention

The utility model aims to solve the technical problem that a rainwater collection system for desert area is provided, the device not only can collect, purify and recycle urban rainwater or surface runoff, can also alleviate urban rainfall flood pressure, purifies the pollutant in the rainwater, improves rainwater utilization efficiency, solves the face source pollution and the extremely deficient problem of water resource to desert area sponge city and has important referential meaning.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a rainwater collecting system for a desert area comprises a front rainwater filtering well, wherein one end of the front rainwater filtering well is communicated with a rainwater collecting pool through a water pipe; the bottom end of the rainwater collecting pool is provided with a penetration pool, and one end of the rainwater collecting pool is connected to the access hole through a pipeline.

Preferably, the inner wall of the rainwater collecting pool is connected with a water storage module, and a sand gravel filling layer is filled at the bottom of a permeable pool below the water storage module; permeable geotextiles are laid on the inner walls of the rainwater collecting tank and the top permeable tank; combine together rainwater collecting pit and infiltration pond, avoid taking up too much space.

Preferably, the water storage module is a PP rainwater collection module with a megahonest molding model of YS-60; and backfilling the top of the collecting pool at the upper part of the rainwater collecting module with soil and sand, and paving a permeable geotextile.

Furthermore, the rainwater collecting pool has a certain depth from the ground surface, so that the evaporation loss of collected rainwater due to high temperature in desert areas is reduced.

Furthermore, the rainwater collecting tank, the infiltration tank and the front end rainwater filtering well are respectively provided with an inspection manhole and a crawling ladder.

Preferably, the bottom of the infiltration tank is connected with a plurality of recharge wells; a permeation tube is fixed inside the recharge well through a centralizer, and a plurality of openings are formed in the surface of the permeation tube; gravel aggregate is filled between the permeation tube and the inner wall of the recharge well.

Furthermore, the bottom end of the permeation tube is connected with a collecting tube, the collecting tube and the permeation tube are PVC tubes, and the side surface of the collecting tube is not opened and is used for further capturing and collecting particles in the settled water to avoid blocking the recharge well.

Preferably, the inside of the front-end rainwater filter well is connected with a filter cartridge with a cylindrical structure through a support frame, the side surface of the filter cartridge is connected with one end of a water outlet pipe, and the other end of the water outlet pipe is connected with a rainwater collecting pool.

Preferably, a water inlet is connected to the side surface of the front rainwater filtering well, and one end of the water inlet is communicated with the rainwater collecting pipeline; the other end of the water inlet is positioned on one side of the filter cylinder and inclines downwards; the side surface of the filter cartridge is provided with a plurality of filter holes, and the filter holes wrap the filter screen.

Furthermore, the water inlet is a tangential inlet, so that turbulence in the equipment can be reduced, the head loss of the system is reduced, and the reduction of performance caused by the fact that pollutant particles are kept in a suspension state is avoided; the elevation of the water inlet is lower than the inverted elevation of the water outlet by the pipe diameter of the water inlet, so that inflowing water flow can enter the treatment chamber statically and is lower than the elevation of the water surface, and turbulence is reduced to the maximum extent; the unique flow regulating internal components also minimize hydraulic losses; no internal damming or channeling; the large transparent opening ensures low head loss at peak flow, so that the risk of blockage when the upstream flow is too large is extremely low.

Further, the precast concrete well cover of top is opened to front end rainwater filter well after using a period, can look over the rainwater and filter the discarded object that the back is left, including wastes such as dirt, oil, rubbish, piece, plastic products, organic matter, wrapping paper, the discarded object temporarily exists in the apotheca, conveniently regularly clears up the discarded object to the storage capacity of guarantee apotheca.

Preferably, the bottom end of the filter cartridge is connected with a stirring cone with a cone-shaped structure, and the bottom end of the stirring cone is connected with the support rod through a rotating shaft; the stirring cone is driven by a micro motor arranged in the supporting rod.

Furthermore, a micro motor is arranged in the support rod and connected with the rotating shaft, and the rotating shaft drives the stirring cone to rotate and is used for stirring water flow to separate waste from clear water; the joint of the micro motor and the rotating shaft is provided with a sealing structure.

Preferably, the inner wall of the front end rainwater filtering well below the stirring cone is connected with a conical baffle; a storage chamber is arranged below the baffle; the top of the front end rainwater filtering well is provided with a manhole, and the surface of the manhole is provided with a well cover.

Further, the access hole is communicated with the rainwater collecting tank through a pipeline; the pipeline is selected to be a large-aperture overhaul pipeline which can be passed by personnel.

The utility model has the advantages that:

the device can collect, purify and recycle urban rainwater or surface runoff, can relieve urban rainfall flood pressure, purify pollutants in rainwater, improve rainwater utilization efficiency, meet the requirement of sponge city construction in desert regions, combine the meteorological hydrological characteristics of high annual air temperature, short rainfall period and large evaporation capacity of the sponge cities in desert regions, purify rainwater by adopting a proper filtering and purifying system at the source of rainwater collection, and then secondarily utilize or replenish underground water, so that the problem of water resource shortage can be effectively solved, flood disasters caused by rainstorm can be solved, and the water resource is fully utilized to improve the ecological environment; the method has important reference significance for solving the problems of non-point source pollution and extremely deficient water resources in sponge cities in desert areas.

Drawings

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

fig. 2 is a schematic structural view of a front end rainwater filtering well in the utility model;

FIG. 3 is a schematic view of the recharging well structure of the present invention;

fig. 4 is a schematic top view of the arrangement direction of the filter cartridge and the water outlet pipe of the water inlet pipe in the rainwater filter well at the front end of the utility model;

the reference numbers in the figures are: the rainwater filter comprises a water pipe 1, a manhole 2, a front-end rainwater filter well 3, a rainwater collecting pool 4, an access hole 6, a permeation pool 5, a recharge well 7, a water storage module 8, a permeable geotextile 9, gravel aggregate 10, a sand gravel filling layer 11, a water outlet pipe 12, a stirring cone 13, a baffle 14, a well cover 15, a storage chamber 16, a water inlet 17, a support frame 18, a filter cartridge 19, a centralizer 21, a permeation tube 22 and a collecting tube 23.

Detailed Description

As shown in fig. 1 to 4, a rainwater collecting system for a desert area comprises a front rainwater filter well 3, wherein one end of the front rainwater filter well 3 is communicated with a rainwater collecting pool 4 through a water pipe 1; 4 bottom in rainwater collecting pit is provided with infiltration pond 5, and 4 one ends in rainwater collecting pit are passed through pipe connection to access hole 6.

Preferably, the inner wall of the rainwater collecting tank 4 is connected with a water storage module 8, and the bottom of the infiltration tank 5 below the water storage module 8 is filled with a sand gravel filling layer 11; permeable geotextiles 9 are laid on the inner walls of the rainwater collecting tank 4 and the top permeable tank 5; combine together rainwater collecting pit 4 and infiltration pond 5, avoid occupying too much space.

Preferably, the water storage module 8 is a PP rainwater collection module with a megahonest molding model of YS-60; and backfilling the top of the collecting pool at the upper part of the rainwater collecting module with soil and sand, and paving a permeable geotextile.

Furthermore, the rainwater collecting pool 4 has a certain depth from the ground surface, so that the evaporation loss of the collected rainwater due to high temperature in the desert area is reduced.

Furthermore, the rainwater collecting tank 4, the infiltration tank 5 and the front end rainwater filtering well 3 are respectively provided with an inspection manhole 2 and a crawling ladder.

Preferably, the bottom of the infiltration tank 5 is connected with a plurality of recharge wells 7; a permeation tube 22 is fixed inside the recharge well 7 through a centralizer 21, and a plurality of openings are formed in the surface of the permeation tube 22; gravel aggregate 10 is filled between the permeation tube 22 and the inner wall of the recharge well 7.

Further, the bottom end of the permeation tube 22 is connected with a collecting tube 23, the collecting tube 23 and the permeation tube 22 are both PVC tubes, and the side surface of the collecting tube 23 is not opened, so that particles in the settled water are further captured and collected, and the blockage of the recharge well 7 is avoided.

Preferably, the interior of the front rainwater filter well 3 is connected with a filter cartridge 19 with a cylindrical structure through a support frame 18, the side surface of the filter cartridge 19 is connected with one end of the water outlet pipe 12, and the other end of the water outlet pipe 12 is connected with the rainwater collecting tank 4.

Preferably, the side surface of the front end rainwater filter well 3 is connected with a water inlet 17, and one end of the water inlet 17 is communicated with a rainwater collecting pipeline; the other end of the water inlet 17 is positioned at one side of the filter cylinder 19 and is inclined downwards; the side surface of the filter cylinder 19 is provided with a plurality of filter holes, and the filter holes are covered with a filter screen.

Furthermore, the water inlet 17 is a tangential inlet, which can reduce the turbulence in the equipment, thereby reducing the head loss of the system and avoiding the reduction of performance caused by the pollutant particles being kept in a suspension state; the elevation of the water inlet 17 is lower than the inverted elevation of the water outlet by the pipe diameter of the water inlet 17, so that inflowing water flow can enter the treatment chamber statically and is lower than the elevation of the water surface, and turbulence is reduced to the maximum extent; unique flow regulation internals also minimize hydraulic losses; no internal damming or channeling; the large transparent opening ensures low head loss at peak flow, so that the risk of blockage when the upstream flow is too large is extremely low.

Further, the precast concrete well cover 15 above the front end rainwater filtering well 3 is opened after being used for a period of time, so that the wastes left after rainwater is filtered, including dirt, oil, garbage, scraps, plastic products, organic matters, packing paper and the like, can be checked, and are temporarily stored in the storage chamber 16, so that the wastes can be cleaned regularly, and the storage capacity of the storage chamber 16 can be guaranteed.

Preferably, the bottom end of the filter cartridge 19 is connected with a stirring cone 13 with a cone structure, and the bottom end of the stirring cone 13 is connected with the support rod through a rotating shaft; the stirring cone 13 is driven by a micro motor arranged in the supporting rod.

Furthermore, a micro motor is arranged in the support rod and connected with the rotating shaft, and the rotating shaft drives the stirring cone 13 to rotate and is used for stirring water flow to separate waste from clear water; the joint of the micro motor and the rotating shaft is provided with a sealing structure.

Preferably, the inner wall of the front end rainwater filtering well 3 below the stirring cone 13 is connected with a conical baffle plate 14; below the baffle 14 is a storage chamber 16; the top of the front end rainwater filtering well 3 is provided with a manhole 2, and the surface of the manhole 2 is provided with a well cover 15.

Furthermore, the access hole 6 is communicated with the rainwater collecting pool 4 through a pipeline; the pipeline is selected to be a large-aperture overhaul pipeline which can be passed by personnel.

The working principle of the utility model is as follows:

rainwater flows to a water inlet 17 of a rainwater filtering well 3 at the front end through rainwater collecting pipelines such as a drainage pipe 1 and the like, then the rainwater is discharged into the well through the water inlet 17, and particles with high density such as stones and gravels sink into a storage chamber 16 to be collected under the stirring of a stirring cone 13; then clear water enters the filter cartridge 19 through seepage, is discharged into the rainwater collection well through the water outlet, then flows to the vertical recharge well 7 through the infiltration tank 5, and the process of seepage to underground water is completed.

The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims (7)

1. A rainwater collection system for desert areas, its characterized in that: the rainwater collecting device comprises a front-end rainwater filtering well (3), wherein one end of the front-end rainwater filtering well (3) is communicated with a rainwater collecting pool (4) through a water pipe (1); a penetration pool (5) is arranged at the bottom end of the rainwater collection pool (4), and one end of the rainwater collection pool (4) is connected to the access hole (6) through a pipeline.

2. A rainwater collection system for desert areas as claimed in claim 1, wherein: the inner wall of the rainwater collecting tank (4) is connected with a water storage module (8), and a sand gravel filling layer (11) is filled at the bottom of the infiltration tank (5) below the water storage module (8); and permeable geotextiles (9) are laid on the inner walls of the rainwater collecting tank (4) and the top permeable tank (5).

3. A rainwater collection system for desert areas as claimed in claim 1, wherein: the bottom of the infiltration tank (5) is connected with a plurality of recharge wells (7); a permeation tube (22) is fixed inside the recharge well (7) through a centralizer (21), and a plurality of openings are formed in the surface of the permeation tube (22); gravel aggregate (10) is filled between the permeation tube (22) and the inner wall of the recharge well (7).

4. A rainwater collection system for desert areas as claimed in claim 1, wherein: the rainwater filter well is characterized in that the interior of the front end rainwater filter well (3) is connected with a filter cartridge (19) with a cylindrical structure through a support frame (18), the side surface of the filter cartridge (19) is connected with one end of a water outlet pipe (12), and the other end of the water outlet pipe (12) is connected with a rainwater collecting pool (4).

5. A rainwater collection system for desert areas as claimed in claim 1, wherein: a water inlet (17) is connected to the side surface of the front end rainwater filtering well (3), and one end of the water inlet (17) is communicated with a rainwater collecting pipeline; the other end of the water inlet (17) is positioned on one side of the filter cylinder (19) and inclines downwards; the side surface of the filter cylinder (19) is provided with a plurality of filter holes, and the filter holes cover the filter screen.

6. A rainwater collection system for desert areas as claimed in claim 4, wherein: the bottom end of the filter cylinder (19) is connected with a stirring cone (13) with a conical structure, and the bottom end of the stirring cone (13) is connected with the support rod (31) through a rotating shaft; the stirring cone (13) is driven by a micro motor arranged in the support rod (31).

7. A rainwater collection system for desert areas as claimed in claim 6, wherein: the inner wall of the front end rainwater filter well (3) below the stirring cone (13) is connected with a conical baffle (14); a storage chamber (16) is arranged below the baffle (14); a manhole (2) is arranged at the top of the front rainwater filtering well (3), and a well cover (15) is arranged on the surface of the manhole (2).

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