Tertiary filterable environmental protection inlet for stom water
Technical Field
The invention belongs to the field of municipal engineering, and relates to an environment-friendly rainwater inlet with three-stage filtration, in particular to an environment-friendly road rainwater collecting and discharging device with three-stage filtration, sand settling and deodorization functions.
Background
In recent years, urban inland inundation disasters frequently occur, and inconvenience is brought to production and life of people. The gutter inlet is used as the most common auxiliary structure of an urban road drainage system, and the design and the selection of the gutter inlet are crucial to rainwater collection and drainage.
Traditional inlet for stom water utilizes the rainwater grate to collect the back rainwater pipeline that flows into with ground rainwater usually, however often can be mingled with road surface rubbish such as fallen leaves, fruit stone, silt, plastic bag in the rainwater, if can not in time clear up and cause the pipe blockage very easily, can lead to the urban waterlogging when serious. And the garbage is mixed into a pipeline and is deposited and eroded by rainwater to form various gases such as hydrogen sulfide and the like, and the odor can overflow through a rainwater port to seriously harm the health of the surrounding masses.
At present, although some gutter inlet designs with garbage filtering effect and deodorization effect have also appeared, most structures are complicated, the cost is higher, hardly obtains popularization and application. Therefore, there is a need to develop an environment-friendly gutter inlet with simple structure, good dirt intercepting and deodorizing effects, low cost and easy popularization and application.
Disclosure of Invention
The invention aims to provide a three-stage filtering environment-friendly gutter inlet with simple structure, low cost and good effect.
In order to achieve the purpose, the invention adopts the following technical scheme: the environment-friendly gutter inlet with three-stage filtration is characterized by comprising
The rainwater grate is positioned at the inlet of the top of the rainwater port and is flush with the road surface;
the grid basket sewage intercepting groove is positioned right below the rainwater grate;
the rainwater settling zone is located the inlet for stom water bottom region, and rainwater settling zone central point puts to be the overflow filtering area, and the overflow filtering area is equipped with overflow filter head and overflow riser, and the overflow riser runs through from the inlet for stom water bottom through pre-buried sleeve pipe, and is perpendicular with the inlet for stom water, and the upper end and the overflow filter head of overflow riser are connected, and the overflow riser lower extreme passes through the elbow and is connected with the discharge pipe of inlet for stom water bottom.
Furthermore, the grid basket sewage intercepting groove is installed and hung under the rainwater grate, the size of the upper part of the grid basket sewage intercepting groove is the same as that of the rainwater grate, the length and the width of the lower part of the grid basket sewage intercepting groove are 0.5-0.8 times of the length and the width of the upper part of the grid basket sewage intercepting groove, latticed water filtering holes are formed in the bottom and the peripheral side walls of the grid basket sewage intercepting groove, the width of each hole is 5-10mm, and the sewage intercepting effect.
Furthermore, the upper part of the overflow filter head is a straight pipe section, the peripheral side walls of the overflow filter head are provided with longitudinal rectangular water filtering holes, the width of each hole is 3-5mm, the top of each hole is sealed by a cover plate, the lower part of each hole is a reducer section and is connected with the overflow vertical pipe, and the diameter of the straight pipe section of the filter head is 1.5 times that of the overflow vertical pipe.
Furthermore, the connection mode between the overflow filter head and the overflow vertical pipe adopts threads, hot melting or socket joint.
Further, a drain pipe at the bottom of the gully is connected to the storm water manhole.
The bottom rainwater sedimentation zone can be used for settling and collecting particles and suspended matters in rainwater. The sedimentation zone can be modified according to the requirements, and the sedimentation effect can be increased if the sedimentation zone is set to be V-shaped.
In the invention, rainwater is subjected to primary filtration by the rainwater grate and secondary filtration by the grid basket dirt-intercepting groove and then is subjected to tertiary filtration in the rainwater settling area, sand and stone particles are settled in the rainwater settling area and then pass through the overflow filtration area, and clear water is collected by the overflow filtration head, passes through the overflow vertical pipe and then is discharged to the rainwater inspection well through the discharge pipeline. The environment-friendly gutter inlet with three-stage filtration has the following advantages: the rainwater inlet overflow filtering device has the advantages of being simple in structural design, easy to manufacture and maintain, low in cost, easy to popularize and apply and the like.
Drawings
Fig. 1 is a three-dimensional schematic view of an embodiment of a three-stage filtering environmental-friendly gutter inlet of the present invention.
Fig. 2 is a schematic sectional view (a) of an embodiment of a three-stage filtering environmental-friendly gully according to the present invention.
Fig. 3 is a schematic sectional view of an embodiment of a three-stage filtration environmental-friendly gutter inlet according to the present invention (ii).
Fig. 4 is a schematic view of an overflow filter head of an embodiment of a three-stage filtration environmental-friendly gutter inlet of the present invention.
Description of reference numerals:
1-rainwater grate, 2-grid basket sewage interception tank, 3-rainwater settling zone, 41-overflow filter head, 42-overflow vertical pipe, 43-embedded waterproof casing pipe, 51-elbow, 52-rainwater inlet connecting pipe.
Detailed Description
In order to make the objects, technical solutions and technical features of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, and it should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.
As shown in fig. 1, the three-stage filtration environmental-friendly gutter inlet of the embodiment of the present invention is a three-dimensional schematic view, and the environmental-friendly gutter inlet can be applied to the municipal drainage field to realize the functions of rainwater collection, drainage and purification, and the three-stage filtration environmental-friendly gutter inlet of the embodiment comprises a sand rainwater grate 1, a grid basket dirt intercepting groove 2, a rainwater settling zone 3, an overflow filtration zone 4, and a discharge pipeline 5, and is characterized in that: the rainwater grate 1 is a primary filtering system and is positioned at the inlet of the top of the rainwater port and is flush with the road surface; the grid basket sewage intercepting groove 2 is used for secondary filtration and is positioned right below the rainwater grate, the size of the upper part of the grid basket sewage intercepting groove is the same as that of the rainwater grate, the length and width of the lower part of the grid basket sewage intercepting groove are 0.5-0.8 times of the length and width of the upper part of the grid basket sewage intercepting groove, longitudinal strip-shaped water filtering holes are arranged on the bottom and the peripheral side walls of the grid basket sewage intercepting groove, the width of each hole is 5-10mm, and the direction of each hole is perpendicular; the rainwater sedimentation zone 3 is the bottom area of the rainwater port, and sand and stone particles are sedimentated at the bottom area; the overflow filtering area 4 is a three-stage filtering area, and is composed of an overflow filtering head 41 and an overflow vertical pipe 42, and is positioned at the center of the bottom, the bottom of the overflow filtering area 4 is provided with an embedded waterproof casing 43, the overflow vertical pipe 42 penetrates through the bottom of the gully through the embedded waterproof casing 43, and a sealing material can be arranged between the overflow vertical pipe 42 and the embedded waterproof casing 43; the drainage pipe 5 is a gutter inlet connecting pipe 52 connected with a rainwater inspection well and is connected with the overflow vertical pipe 42 through an elbow 51.
The working principle of the three-stage filtering environment-friendly gutter inlet in the embodiment is as follows: when raining, road surface rainwater carrying various pollutants flows into the system after being filtered by the rainwater grate, and then passes through the grid basket sewage intercepting groove hung below the rainwater grate, and most leaves, fruit stones and large-particle gravels in the rainwater are intercepted and removed. The rainwater mixed with the small-particle silt flows to a precipitation zone at the bottom of the rainwater inlet and utilizes gravity to settle the silt, along with the increase of rainwater amount, the water level in the device rises and gradually overflows and submerges the overflow filtering device, the device can further intercept impurities in the rainwater, and the odor in the pipeline can be prevented from overflowing.
The present invention has been further described with reference to the specific embodiments, but the specific description herein should not be construed as limiting the scope of the present invention, and those skilled in the art can appropriately change and modify the above-described embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention.