CN214050571U - Rainwater filtration and rainwater treatment system - Google Patents

Abstract

The utility model discloses a rainwater filtration and rainwater processing system has solved the easy problem of blockking up, maintaining inconvenience of current rainwater garden ground filter layer rainwater processing. The utility model comprises a light filler filtering layer, a porous disc and a plurality of back-washing perforated pipes embedded in the light filler filtering layer, wherein the back-washing perforated pipes are communicated through a four-way pipe joint, one end of one back-washing perforated pipe is communicated with the outside of the light filler filtering layer, one surface of the light filler filtering layer is coated with a filler filtering net, the porous disc and the filler filtering net are arranged with gaps, an impurity discharging layer is formed between the porous disc and the filler filtering net, and the porous disc is used for filtering the outside water; communicating the backwashing perforated pipe with a drain pipe, and communicating the impurity discharge layer with an overflow pipe to form a new rainwater treatment system; the water in the backwashing perforated pipe is from high-flow-rate and large-flow-rate rainwater when the roof is in heavy rain, local materials are used, and resources are saved. The utility model has the advantages of low maintenance cost, self-cleaning function, convenient maintenance and the like.

Description

Rainwater filtration and rainwater treatment system

Technical Field

The utility model relates to a municipal works technical field, concretely relates to rainwater filtration and rainwater processing system.

Background

In recent years, the construction of sponge cities requires that rainwater on construction land be consumed on site, and rainwater disconnection measures of rainwater gardens and roofs are often adopted as important measures for the construction of sponge cities. A rainwater garden usually adopts a structure of planting soil and a filter layer to carry out stagnation, permeation and purification on site rainwater, a general structure layer adopts filter layers such as gravel, slag, coarse sand and the like, and a blind pipe is buried in the gravel layer to collect and collect treated rainwater to be gathered into a rainwater pipe network. The roof is usually purified and consumed by adopting a high-position flower bed or a rainwater garden which converges into the green land after energy dissipation. However, the conventional rainwater garden is blocked quickly, the rainwater garden cannot perform normal rainwater purification and infiltration functions quickly, and if a filtering layer of the rainwater garden needs to be cleaned, the filtering layer cannot be cleaned generally without damaging a planting soil layer, and the filtering layer needs to be replaced, so that the maintenance cost is high and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: make the filtering layer realize the self-cleaning, the utility model provides a solve a rainwater filtration and rainwater processing system of above-mentioned problem.

The utility model discloses a following technical scheme realizes:

a rainwater filtering structure is used for filtering rainwater in a rainwater treatment system and comprises a light filler filtering layer, a porous plate and a backwashing perforated pipe embedded in the light filler filtering layer; the backwashing pore pipes are communicated through a four-way pipe joint, and one end of one backwashing pore pipe is communicated with the outside of the light filler filtering layer; one surface of the light filler filtering layer is coated with a filler filtering net; the porous disk forms the impurity exhaust layer with the gapped setting of filler filter screen between porous disk and the filler filter screen, and the porous disk is used for filtering the extra income water.

The utility model provides a new rainwater filtering structure, in the rainwater filtering structure, the light filler filtering layer is generally used for filling in the filtering layer of the rainwater garden, the porous disk is used for filtering the rainwater above the filtering layer of the rainwater garden, prevent silt from permeating into the light filler filtering layer, and the end of the back flush trompil pipe which is communicated with the light filler is mainly used for connecting with the rainwater drainage pipe of other sources, the source of the rainwater can be the drainage canal of the roof, also can be artificially rainwater collected on the ground, etc., when the rain is in a smaller state, the water in the back flush trompil pipe has smaller corresponding pressure intensity, at the moment, the rainwater permeates into the deep soil downwards in the light filler filtering layer or is discharged into the rainwater pipe network through the impurity discharging layer, the silt in the rainwater is filtered between the light filler filtering layer, when the rain is in a larger state, the pressure intensity in the back flush trompil pipe is larger, at the moment, rainwater discharged by the backwashing perforated pipe impacts the light filler filtering layer, and the light filler is mutually rubbed or rolled under the impact of the rainwater, so that silt among the light fillers enters the impurity discharging layer along with the rainwater and is discharged into the rainwater pipe network through the impurity discharging layer, and therefore, the rainwater filtering structure of the utility model can filter the rainwater when the rain is in a small rain condition, and can realize self-cleaning of the rainwater filtering structure when the rain is in a large rain condition; the utility model provides a filler filter screen's effect is for preventing that the light packs to spill over under the impact of water.

Preferably, the filter comprises a first baffle plate, the first baffle plate is vertically connected to one end of the filler filter screen, the first baffle plate is positioned between the filler filter screen and the water permeable plate, and a gap is reserved between the first baffle plate and the water permeable plate; the setting up of first baffle makes impurity exhaust layer have certain retaining function, and the external rainwater through the porous disk is unlikely to directly to be discharged to the rainwater pipe network in, and silt is piled up in the reduction rainwater pipe network.

A rainwater treatment system comprises a drain pipe, an overflow pipe and the rainwater filtering structure, wherein one end of the drain pipe is communicated with a backwashing perforated pipe outside a light filler filtering layer, and the drain pipe is used for guiding rainwater from a roof into the backwashing perforated pipe; the overflow pipe is communicated with the impurity discharging layer and is mainly used for discharging rainwater filtered by the light filler filtering layer.

In this rainwater processing system, rainwater filtration has regarded as main filtration position, rainwater through assembling before filtering is discharged into the back flush trompil pipe through the drain pipe, when rainwater pressure is less, infiltration to deep soil after filtering by rainwater filtration, when rainwater pressure is great, then wash rainwater filtration, discharge to the rainwater pipe network through the overflow pipe again in, overflow pipe and drain pipe can set up singly or a plurality ofly according to actual engineering environment and local precipitation prediction, it sets up singly or a plurality of rainwater filtration to correspond, and the overflow pipe discharge port can set up alone or converge together so that carry out centralized processing to the rainwater.

Preferably, the device comprises a first inspection well and an initial rainwater removal barrel arranged in the first inspection well, wherein the initial rainwater removal barrel is a hollow cylinder, a barrel body of the initial rainwater removal barrel is communicated with a drain pipe, the barrel body of the initial rainwater removal barrel is also communicated with a roof drain ditch through a rainwater vertical pipe, and a desanding hole is formed in the bottom of the initial rainwater removal barrel; the first inspection well is matched with the initial rainwater removal barrel and is used for settling and cleaning silt in a pipeline/channel brought by rainwater in the early stage.

Further, an inspection hole is formed in the top of the initial rainwater removal barrel; the inspection hole is used for facilitating the constructor to check the blockage condition of the initial rainwater removal barrel.

Preferably, the rainwater stand pipe penetrates through the outer wall and is communicated with the roof drainage channel on the inner side of the outer wall.

Preferably, a second inspection well is included, and the second inspection well is communicated with the overflow pipe; the second inspection well plays a certain role in precipitation of rainwater discharged from the overflow pipe and facilitates manual sand discharge.

Preferably, a second baffle is arranged in the second inspection well, the second baffle is vertically connected with the bottom of the second inspection well, and the surface of the second baffle is vertical to the axis of the overflow pipe; the second baffle is arranged to block water discharged by the overflow pipe, so that the discharged rainwater can be precipitated in the second inspection well and discharged into the rainwater pipe network.

Preferably, the rainwater filter structure comprises a rainwater garden, the rainwater filter structure is installed in a water storage foundation pit of the rainwater garden, the filler filter screen is connected with the side wall of the water storage foundation pit, the water permeable plate is connected with the side wall of the water storage foundation pit, the surface of the water permeable plate, far away from the filler filter screen, is connected with a planting soil layer of the rainwater garden, and the overflow pipe extends to an overflow layer of the rainwater garden in the direction of the earth surface; the porous disk plays filtration and bearing effect to planting the soil layer, makes the rainwater that permeates from planting in the soil layer contain silt very little, reduces the silt deposit.

The utility model discloses have following advantage and beneficial effect:

the utility model provides a new rainwater filtration and adopt rainwater processing system of this structure, make the utility model discloses compare in the rainwater under the current rainwater garden handle and practice thrift the maintenance cost more, the utility model discloses from taking the clearance function, on the jam problem, the utility model discloses a jam cycle is greater than current rainwater garden rainwater processing system far away for maintain the corresponding reduction of frequency, reduce the maintenance cost, just the utility model discloses it is convenient to maintain, directly to carry out high-pressure water injection to back flush trompil pipe can, practice thrift the man-hour when maintaining by a wide margin.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional structure diagram of the filtering structure of the present invention.

Reference numbers and corresponding part names in the drawings:

1-a light filler filtering layer, 2-a back-flushing perforated pipe, 3-a porous plate, 4-an impurity discharging layer, 5-a water discharging pipe, 6-an overflow pipe, 7-a first baffle, 8-an initial rainwater removing barrel, 9-an inspection hole, 10-a first inspection well, 11-a second inspection well, 12-a second baffle and 13-a rainwater vertical pipe.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

As shown in fig. 1 and 2, a rainwater filtering structure for rainwater filtering in a rainwater processing system, comprises a light filler filtering layer 1, a permeable plate 3, a first baffle 7 and a backwashing perforated pipe 2 embedded in the light filler filtering layer 1, wherein the backwashing perforated pipes 2 are communicated through a four-way pipe joint, one end of one backwashing perforated pipe 2 is communicated with the outside of the light filler filtering layer 1, the top surface of the light filler filtering layer 1 is coated with a filler filtering screen, the permeable plate 3 is arranged above the filler filtering screen with a gap, the permeable plate 3 is parallel to the filler filtering screen, an impurity discharging layer 4 is formed between the permeable plate 3 and the filler filtering screen, the permeable plate 3 is used for filtering incoming water above the permeable plate 3, the first baffle 7 is vertically connected to the upper surface of the filler filtering screen, and a gap is formed between the first baffle 7 and the permeable plate 3.

The working principle is as follows: in the scheme, one end of a back washing perforated pipe 2 positioned outside a light filler is connected with a ditch or a pipeline for discharging rainwater, the rainwater enters the back washing perforated pipe 2, when the rain is in a small state, the water pressure in the back washing perforated pipe 2 is small, at the moment, a light filler filtering layer 1 mainly plays a role in filtering, so that silt in the rainwater is blocked between the light fillers, the filtered rainwater is accumulated in the light filler filtering layer 1 and slowly permeates into deep soil downwards, when the rain level is higher than a first baffle 7, the rainwater passes over the baffle and enters a rainwater pipe network, when the rain is in a large state, the water pressure in the back washing perforated pipe 2 is large, at the moment, the rainwater sprayed out of the back washing pipe 2 plays a role in washing the light filler filtering layer 1, the light fillers roll under the impact of the rainwater and rub with each other, so that the silt between the light fillers is brought out by the rainwater and enters an impurity discharging layer 4, because the water pressure ratio is great this moment, silt in the rainwater is in the suspended state, and at this moment, silt crosses first baffle 7 and gets into in the rainwater pipe network along with the rainwater.

Example 2

As shown in fig. 1, a rainwater treatment system comprises a drain pipe 5, an overflow pipe 6 and the rainwater filtering structure of embodiment 1, wherein one end of the drain pipe 5 is communicated with the backwashing porous pipe 2 outside the light filler filtering layer 1, and the drain pipe 5 is used for guiding rainwater from a roof into the backwashing porous pipe 2; the overflow pipe 6 is communicated with the impurity discharge layer 4, and the overflow pipe 6 is mainly used for discharging rainwater filtered by the light filler filtering layer 1 and/or impurities filtered by the light filler filtering layer 1.

Through the connection of drain pipe 5 and overflow pipe 6, make the rainwater filtration as the main filtration of rainwater processing to filter the rainwater of process, when the rain tendency is great, this rainwater processing system borrows the energy of the rainwater of eminences such as eave to realize from washing to filtration, in the area of raining less (few rain throughout the year), also can carry out high-pressure water injection to filtration through drain pipe 5 by oneself, thereby realize artifical clearance, because rainwater processing system generally adorns under the earth's surface, so this scheme has increased rainwater processing system's jam cycle, have certain self-cleaning function, it is also more convenient when carrying out artifical washing, time saving and labor saving, maintenance cost reduces by a wide margin.

Example 3

As shown in fig. 1, the rainwater drainage system further includes a first manhole 10, a second manhole 11, a rainwater garden, a second baffle 12 disposed in the second manhole 11, and an initial rainwater removal bucket 8 disposed in the first manhole 10, on the basis of embodiment 2; the initial rainwater removal barrel 8 is a hollow cylinder, the barrel body of the initial rainwater removal barrel 8 is communicated with the drain pipe 5, the barrel body of the initial rainwater removal barrel 8 is also communicated with the roof drainage ditch through a rainwater vertical pipe 13, the rainwater vertical pipe 13 penetrates through the outer wall and extends to the roof drainage ditch along the inner side of the outer wall, the barrel bottom of the initial rainwater removal barrel 8 is provided with a sand removal hole, and the barrel top is provided with an inspection hole 9; the second inspection well 11 is communicated with the overflow pipe 6, the second baffle 12 is vertically connected with the bottom of the second inspection well 11, and the surface of the second baffle 12 is vertical to the axis of the overflow pipe 6; the rainwater filtering structure is arranged in a filtering layer foundation pit of the rainwater garden, a filler filter screen and the water permeable plate 3 in the filtering structure are respectively and fixedly connected with the side wall of the foundation pit of the filtering layer of the rainwater garden, the overflow pipe 6 is communicated with an overflow layer of the rainwater garden, and a planting soil layer of the rainwater garden is arranged on the water permeable plate 3.

The initial rainwater removal barrel 8 is mainly used in the initial stage of flowing through a rainwater vertical pipe 13 at rainwater, a small amount of silt exists in the rainwater vertical pipe 13, the initial rainwater removal barrel 8 is mainly used for precipitating a small amount of silt in the rainwater vertical pipe 13, an inspection hole 9 in the top of the initial rainwater removal barrel 8 is convenient for maintenance personnel to inspect the blocking condition of the initial rainwater removal barrel 8, the rainwater passing through the light filler filtering layer 1 is precipitated in the second inspection well 11 due to the arrangement of the second inspection well 11 and the second baffle 12, the silt in the rainwater is mainly gathered in the second inspection well 11, uniform cleaning is facilitated, the sand content in a subsequent rainwater pipe network is reduced, and the arrangement of the water permeable plate 3 not only prevents the silt planted in a rainwater garden from falling into the impurity discharge layer 4, but also plays a supporting role in the planted soil layer of the rainwater garden.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. A rainwater filtering structure is used for rainwater filtering in a rainwater treatment system and is characterized by comprising a light filler filtering layer (1), a water permeable plate (3) and a backwashing perforated pipe (2) embedded in the light filler filtering layer (1);

the backwashing pore pipes (2) are communicated through a four-way pipe joint, and one end of one backwashing pore pipe (2) is communicated with the outside of the light filler filtering layer (1);

one surface of the light filler filtering layer (1) is coated with a filler filtering net;

the permeable plate (3) and the filler filter screen are arranged in a clearance mode, an impurity discharging layer (4) is formed between the permeable plate (3) and the filler filter screen, and the permeable plate (3) is used for filtering external water.

2. A stormwater filtration structure as claimed in claim 1, comprising a first baffle (7), the first baffle (7) being connected perpendicularly to one end of the filler screen, the first baffle (7) being located between the filler screen and the water permeable plate (3), there being a gap between the first baffle (7) and the water permeable plate (3).

3. A rainwater treatment system, which is characterized by comprising a drain pipe (5), an overflow pipe (6) and a rainwater filtering structure according to any one of claims 1-2, wherein one end of the drain pipe (5) is communicated with the backwashing perforated pipe (2) outside the light filler filtering layer (1), and the drain pipe (5) is used for guiding rainwater from a roof into the backwashing perforated pipe (2);

the overflow pipe (6) is communicated with the impurity discharge layer (4), and the overflow pipe (6) is mainly used for discharging rainwater filtered by the light filler filtering layer (1) and impurities in the light filler filtering layer.

4. A rainwater treatment system according to claim 3, characterized by comprising a first inspection well (10) and an initial rainwater removal barrel (8) arranged in the first inspection well (10), wherein the initial rainwater removal barrel (8) is a hollow cylinder, the barrel body of the initial rainwater removal barrel (8) is communicated with a drain pipe (5), the barrel body of the initial rainwater removal barrel (8) is also communicated with a roof drain channel through a rainwater vertical pipe (13), and a sand removal hole is formed in the barrel bottom of the initial rainwater removal barrel (8).

5. A rainwater treatment system according to claim 4 wherein said initial rainwater removal tank (8) is provided with a manhole (9) at the top of the tank.

6. A rainwater treatment system according to claim 4 wherein the rainwater stand pipe (13) passes through the outer wall and communicates with the roof drain channel on the inside of the outer wall.

7. A stormwater treatment system as claimed in claim 3, comprising a second manhole (11), the second manhole (11) being in communication with the overflow pipe (6).

8. A rainwater treatment system according to claim 7, characterized in that a second baffle (12) is arranged in the second inspection well (11), the second baffle (12) is vertically connected with the bottom of the second inspection well (11), and the surface of the second baffle (12) is vertical to the axis of the overflow pipe (6).

9. A rainwater treatment system according to claim 3 including a rainwater garden, wherein the rainwater filtering structure is installed in a water retaining pit of the rainwater garden, the filler sieve is connected with the side wall of the water retaining pit, the water permeable plate (3) is connected with the side wall of the water retaining pit, the surface of the water permeable plate (3) far away from the filler sieve is connected with the planting soil layer of the rainwater garden, and the overflow pipe (6) extends to the overflow layer of the rainwater garden towards the earth surface.

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