CN219327169U

CN219327169U - Prefabricated rainwater infiltration well with replaceable filter layer

Info

Publication number: CN219327169U
Application number: CN202320700608.XU
Authority: CN
Inventors: 饶帅; 赵开拓; 孔繁星; 李志龙
Original assignee: Wisdri Engineering and Research Incorporation Ltd; Wisdri Urban Construction Engineering Technology Co Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd; Wisdri Urban Construction Engineering Technology Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-07-11
Anticipated expiration: 2033-03-31

Abstract

The utility model discloses a prefabricated rainwater infiltration well with a replaceable filter layer, which comprises a porous well cover and a well body which are sequentially arranged from top to bottom, wherein an assembled clamping groove formed by a plurality of parts is formed in the bottom of the well body, and the spliced filter layer is arranged in each part of the assembled clamping groove. The utility model can solve the problems caused by the construction cost and the later maintenance of the traditional seepage well, has the advantages of high construction speed, low construction cost, simple later maintenance, environmental protection and the like, and can be widely applied to the technical field of sponge city facilities.

Description

Prefabricated rainwater infiltration well with replaceable filter layer

Technical Field

The utility model relates to the technical field of sponge city facilities, in particular to a prefabricated rainwater infiltration well with a replaceable filter layer.

Background

With the continuous deep urban construction, large-area areas such as building roofs, pavements, squares, parking lots and the like of cities are subjected to surface hardening treatment, so that original vegetation and soil are covered by water-impermeable or water-weak permeable ground surfaces, a large amount of rainwater is discharged in a form of ground runoff, and the ground infiltration amount is greatly reduced. Therefore, the risk of flood disasters in cities during heavy rain is greatly increased, and huge losses can be brought to lives, properties and the like of people. The sponge city concept is that urban development modes of natural accumulation, natural permeation and natural purification are realized by strengthening urban planning construction management, fully playing roles of absorbing, storing and releasing rainwater by ecological systems such as buildings, roads, greenbelts, water systems and the like, effectively controlling rainwater runoff. The seepage well is used as a sponge city facility, is widely applied in engineering, and is an inspection well with a seepage function and a certain sand setting volume; the well wall or the well bottom has a penetration function, and collected rainwater is purified and then is penetrated into the ground organically, so that the important effects of purifying initial rainwater, supplementing underground water and relieving urban flood disasters are realized.

Currently, there are a number of forms of infiltrant wells, mostly brickwork wells or cast-in-place concrete wells, and filter layers have the following problems:

1. the brick or cast-in-situ well is required to be manufactured on site, so that the labor cost is high, the construction efficiency is low, and the construction period is long;

2. the filter layer is disposable, can not be replaced after being blocked, and has poor later filtering and permeation effects;

3. the well structure is manufactured in a non-modularized mode, and maintenance difficulty of each part is high;

therefore, in order to reduce the construction cost and construction period of the infiltration well and ensure the long-term effective infiltration effect and filtration capacity of the infiltration well, a novel infiltration well structure is urgently needed.

Disclosure of Invention

The utility model aims to overcome the defects of the background technology, and provides the prefabricated rainwater infiltration well with the replaceable filter layer, so that the prefabricated rainwater infiltration well can solve the problems caused by the construction cost and the later maintenance of the traditional infiltration well, and has the advantages of high construction speed, low construction cost, simple later maintenance, environmental protection and the like.

The utility model provides a prefabricated rainwater infiltration well with a replaceable filter layer, which comprises a porous well cover and a well body which are sequentially arranged from top to bottom, wherein an assembled clamping groove formed by a plurality of parts is formed in the bottom of the well body, and the spliced filter layer is arranged in each part of the assembled clamping groove.

In the technical scheme, the assembled clamping groove consists of four parts including a clamping groove I, a clamping groove II, a clamping groove III and a clamping groove IV, and the clamping groove I, the clamping groove II, the clamping groove III and the clamping groove IV are internally provided with the assembled filter layer.

In the technical scheme, the well body is a prefabricated well chamber, the prefabricated well chamber is formed by communicating an upper cone body and a lower straight cylinder body, an opening at the bottom of the cone body is larger than an opening at the top, and the assembled clamping groove and the assembled filter layer are positioned at the bottom of the straight cylinder body.

In the technical scheme, the bottom of the straight cylinder body of the prefabricated well chamber is provided with the side-penetration type base, and the top and the bottom of the side-penetration type base are of an opening type structure.

In the technical scheme, the opening at the top of the prefabricated well chamber is provided with the dirt intercepting net connected with the porous well cover.

In the above technical scheme, the side wall of the upper part of the prefabricated well chamber is provided with a hole for accommodating the seepage pipe.

In the technical scheme, the spliced filter layer is of a pebble gravel combined structure.

In the technical scheme, the side-penetrating type base is a large-particle permeable concrete annular body. The prefabricated rainwater infiltration well with the replaceable filter layer has the following beneficial effects:

1. the initial rainfall is collected in time, and the porous well cover is provided with a dirt interception net, so that large-volume impurities in the initial rainwater can be intercepted, and the pollution of urban sources is reduced.

2. The well body of the seepage well adopts a prefabricating process, can be directly hoisted and buried on site, and can obviously improve the construction efficiency, save the construction period and reduce the manufacturing cost compared with the traditional bricking and cast-in-situ well.

3. The filter layers can be assembled in a modularized and assembled structure, so that the practical problem that the filter layers are not replaceable is solved, and the later maintenance difficulty is greatly reduced.

4. The filter layer and the permeable side-penetrating base can be assembled for double filtration, so that the purification effect of the initial rainwater is good, the pollution to the underground water is reduced, and the environment is protected.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a prefabricated rainwater infiltration well with a replaceable filter layer according to the present utility model;

FIG. 2 is a top view of the construction of a prefabricated stormwater infiltration well with a replaceable filter layer of the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, which should not be construed as limiting the utility model.

Referring to fig. 1, the prefabricated rainwater infiltration well with the replaceable filter layer mainly comprises a porous well cover 1, a sewage interception net 2, a prefabricated well chamber 3, an assembled filter layer 5 and a side-penetration base 7. The porous well cover 1 is made of spheroidal graphite cast iron, is consistent with a common well cover on a road surface, has the size of phi 700mm, is densely perforated on a panel of the porous well cover 1, has the aperture phi 25mm, and can be used for carrying large-volume solid pollutants such as leaves, cigarette ends and the like by initial rainwater and entering a seepage well through perforation.

Further, the large-volume solid pollutants are intercepted by the pollutant intercepting net 2, the filter material is prevented from being blocked, and the pollutant intercepting net 2 can be cleaned or replaced regularly according to the accumulation condition of the pollutants.

Further, the prefabricated well chamber 3 of the infiltration well is of a prefabricated reinforced concrete structure, the prefabricated well chamber is machined in a factory, the upper part of the prefabricated well chamber is of a cone structure with a small upper part and a large lower part, the lower part of the prefabricated well chamber is of a straight cylinder structure, the upper opening and the lower opening are all open, the porous well cover 1 is placed at the top opening, and the bottom opening is connected with the spliced filter layer 5. The side wall at the upper part of the prefabricated well chamber 3 is provided with a hole for a seepage pipe, so that the seepage pipe is conveniently connected. The inner diameter of the prefabricated well chamber 3 is phi 1000mm, the wall thickness is 180mm, the construction is completed by mechanical hoisting, site workers do not need to temporarily build or prop up a mould to pour concrete, the time and the labor cost are greatly saved, the construction efficiency is high, the construction cost is low, and the construction period is saved.

Further, an assembled clamping groove 6 is reserved at the bottom of the prefabricated well chamber 3, the groove width is 200mm, the thickness of the assembled clamping groove is consistent with that of the assembled filter layer 5, the depth of the assembled clamping groove is 50mm, and the assembled filter layer 5 is assembled and installed in the assembled clamping groove 6.

Referring to fig. 2, further, the spliced filter layer 5 is a core filter unit of an infiltration well, and the overall diameter phi 1050mm and the width 200mm of the spliced filter layer 5 are consistent with the width of the spliced clamping groove 6. Unlike the traditional integral filtering layer structure, the split filtering layer 5 can be split into 4 parts of independent structures, and the split filtering layer has small size, can realize underground split, solves the practical problem that the traditional filtering layer cannot be replaced, greatly reduces the later maintenance difficulty, and realizes long-term effective work of an infiltration well.

Further, the filter material of the spliced filter layer 5 is formed by filling pebbles and sand, and the outside is formed by wrapping a high-strength hard plastic net sheet, so that most large-particle pollutants in initial rainwater can be filtered out by the filter material, the rainwater permeated into underground water is sufficiently purified, the pollution of the underground water is prevented, and the groundwater environment is effectively protected.

Further, rainwater is filtered by the spliced filter layers 5 and then directly enters the well Zhou Tiansha area 4, and the lower part of the prefabricated well chamber 3 is buried in the area so as to be convenient for rainwater to infiltrate into soil.

Furthermore, the lower part of the prefabricated well chamber 3 is provided with a side permeable base 7 which is of an annular concrete structure and is formed by pouring large-particle permeable concrete; the inner diameter phi of the side-penetrating base 7 is 1000mm, the wall thickness is 180mm, the side-penetrating base is consistent with the prefabricated well chamber 3, the height is 400mm, and the side-penetrating base is also lifted on site and is installed before the prefabricated well chamber 3. During installation, the joint surfaces of the lower part assembly clamping groove 6 of the prefabricated well chamber 3 and the upper part of the side-penetrating base 7 are plastered by cement mortar, so that the two surfaces are tightly attached.

Further, the side-penetrating base 7 can bear the load of the upper prefabricated well chamber 3 and the spliced filter layer 5 on one hand, and keeps the upper structure stable; on the other hand, since the side-permeable base 7 is made of large-particle permeable concrete, it has a side-permeable capacity, and rainwater that seeps from the lower side of the spliced filter layer 5 can seep from the side wall of the side-permeable base 7, and secondary filtration is performed.

The technical principle of the utility model is as follows:

the prefabricated rainwater inlet prefabricated well chamber 3 with the replaceable filter layer mainly comprises four parts of a sewage interception type porous well cover 1, the prefabricated well chamber 3, an assembled filter layer 5 and a side-penetrating base 7. During rainfall, ground rainwater runoff flows into the seepage well through the sewage interception type porous well cover 1, the sewage interception net 2 is hung under the porous structure of the porous well cover 1, initial rainwater carries leaves, garbage and the like to intercept through the sewage interception net 2, and the rainwater enters the well after a large amount of initial rainwater pollutants are removed. The prefabricated well chamber 3 of the infiltration well is of a prefabricated reinforced concrete structure, the upper part of the prefabricated well chamber is of a closed structure with a small upper part and a large lower part, the lower part of the prefabricated well chamber is of a straight wall structure, and the upper part and the lower part of the prefabricated well chamber are both open; the side wall of the upper part of the prefabricated well chamber 3 is reserved with a hole, so that the seepage pipe is conveniently connected with the pipe; the lower part of the prefabricated well chamber 3 is reserved with an assembled clamping groove 6, and the later-stage assembled filter layer 5 is arranged in the assembled clamping groove 6.

The filter layer 5 can be assembled to be a main filter unit of an infiltration well, and is different from the traditional integral filter layer, the filter layer 5 can be assembled to be split into four symmetrical independent structures, the split independent structures are assembled to be round, the split independent structures are small in size and can be transported from a wellhead, and the split independent structures are also the key of the filter layer 5 can be assembled to be replaced. The traditional integral filter layer is of a whole circular structure, the diameter of the integral filter layer is the same as that of the lower well chamber, and the integral filter layer is difficult to send into the well from a narrow upper well head, so that the filter layer cannot be replaced.

The filter material of the spliced filter layer 5 is filled by pebbles and sand, the outside of the filter material is wrapped by high-strength plastic meshes, and the sand and stone filler can filter most of large-particle pollutants in initial rainwater, so that rainwater permeated into groundwater is sufficiently purified, groundwater pollution is prevented, and groundwater environment is effectively protected.

The side permeable base 7 is positioned at the lower part of the prefabricated well chamber 3, is of an annular concrete structure, is formed by pouring large-particle permeable concrete, and has two functions: 1. bearing function, supporting the structural weight of the prefabricated well chamber 3, the spliced filter layer 5 and the like at the upper part; 2. and (3) osmosis, wherein purified rainwater can seep from the side wall for secondary filtration.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

What is not described in detail in this specification is prior art known to those skilled in the art.

Claims

1. The utility model provides a prefabricated rainwater infiltration well of removable filtering layer, includes porous well lid (1) and the well body that from top to bottom set gradually, its characterized in that: the bottom of the well body is provided with an assembled clamping groove (6) formed by a plurality of parts, and an assembled filter layer (5) is arranged in each part of the assembled clamping groove (6).

2. The prefabricated stormwater infiltration well of replaceable filter layers as claimed in claim 1, wherein: the assembled clamping groove (6) consists of four parts including a clamping groove I, a clamping groove II, a clamping groove III and a clamping groove IV, wherein the clamping groove I, the clamping groove II, the clamping groove III and the clamping groove IV are respectively internally provided with an assembled filter layer (5).

3. The prefabricated stormwater infiltration well of replaceable filter layers as claimed in claim 2, wherein: the well body is a prefabricated well chamber (3), the prefabricated well chamber (3) is formed by communicating an upper cone body and a lower straight cylinder body, an opening at the bottom of the cone body is larger than an opening at the top, and the assembled clamping groove (6) and the assembled filter layer (5) are positioned at the bottom of the straight cylinder body.

4. A prefabricated stormwater infiltration well with replaceable filter layer as claimed in claim 3, wherein: the bottom of the straight cylinder body of the prefabricated well chamber (3) is provided with a side-penetration base (7), and the top and the bottom of the side-penetration base (7) are of an open type structure.

5. The prefabricated stormwater infiltration well of replaceable filter according to claim 4, wherein: the top opening of the prefabricated well chamber (3) is provided with a sewage interception net (2) connected with the porous well cover (1).

6. The prefabricated stormwater infiltration well of replaceable filter according to claim 5, wherein: the side wall of the upper part of the prefabricated well chamber (3) is provided with a hole for accommodating a seepage pipe.

7. The prefabricated stormwater infiltration well of replaceable filter according to claim 6, wherein: the spliced filter layer (5) is of a pebble gravel combined structure.

8. The prefabricated stormwater infiltration well of replaceable filter according to claim 7, wherein: the side permeable base (7) is a large-particle permeable concrete annular body.