CN110565783A - Centrifugal type anti-blocking rainwater inlet - Google Patents

Abstract

The invention relates to a centrifugal anti-blocking rainwater inlet, wherein at present, the top surface of most rainwater inlet structures laid on roads is a rainwater well grate, the bottom of the rainwater inlet structures is provided with a rainwater branch pipe connected with a rainwater well, and the rainwater well grate is provided with a plurality of orifices. When cleaning, fallen leaves and sand are easy to be brought into a rainwater well, and the silt carried by initial rainwater is easy to be deposited at the bottom of the rainwater well, so that the sewer is blocked. The invention adopts the spiral curved surface, the collecting pipeline, the baffle and the mud collecting groove, forms rotational flow by utilizing the converging effect of the spiral curved surface and the baffle on water flow, realizes water-sand separation under the centrifugal force generated by the rotational flow, and leads the separated mud and sand into the mud collecting groove through the collecting pipeline. On the premise of not influencing the drainage speed of the rainwater port, the invention effectively reduces the sediment deposition in the rainwater pipeline, lightens the sewage interception burden, is simple and convenient to install, and reduces the danger of pipeline rainwater port maintenance and the manual operation cost; the spiral separating device and the sludge collecting groove can be detached, and the taking and the placing are convenient.

Description

A centrifugal anti-clogging rainwater outlet

technical field

The invention relates to the technical field of drainage, in particular to a centrifugal anti-clogging rainwater outlet.

Background technique

In recent years, due to various factors such as climate change and urban construction, urban waterlogging has occurred frequently, seriously threatening the safety of residents' lives and property. In addition to the increase in extreme rainstorms, urban waterlogging is also particularly common due to reduced drainage capacity due to clogged storm drains and silted storm sewer pipes. The gully is the main subsidiary structure of the urban drainage pipeline system, and it is also an important part of urban road drainage. The rainwater outlet is located at the beginning of the urban drainage system, and is usually set at a certain distance from municipal roads, squares, street intersections and street gutters. The gully is the starting point of the urban drainage system, which has the function of collecting rainwater and intercepting sewage. The scientific and rational design of the sewage interception outlet can reduce the phenomenon that sediment and other garbage block the rainwater outlet, causing the rainwater to not pass the road or cause water accumulation in the road and low-lying areas to form waterlogging points that hinder traffic or damage the road. The rainwater interception device is used as a The structural design of pavement drainage pollution control facilities is particularly important. Therefore, while waterlogging control is rationally designed, updated, managed and maintained, and LID and GSI measures are adopted, attention should be paid to the design of urban road rainwater outlets in the drainage network design. Reasonable modification of the drain.

At present, the top surface of most of the gullies for road laying is a rainwater well grate, the bottom is a gully shaft, and the bottom has a rainwater branch pipe to connect the rainwater well, and there are many holes on the rainwater grate. When cleaning, it is easy to bring fallen leaves and sand into the rainwater well, and the sediment carried by the initial rainwater is also very easy to deposit at the bottom of the rainwater well, causing the sewer channel to be blocked and forming waterlogging points during the rainy season. In order to reduce blockage and improve drainage performance, it is necessary to regularly open the rainwater grate to clean up the internal garbage, which is time-consuming, laborious and dangerous, and has caused many accidents of people falling and causing death and injury. The cleaning of rainwater outlets on the road also greatly affects the smooth flow of urban road transportation and traffic safety. Garbage such as leaves deposited in the gullies will ferment and rot under the rainwater and emit peculiar smells, pollute the surrounding air, and may cause pipeline explosions, causing major economic losses and adverse social impacts.

Need a kind of novel gully design badly for this reason and solve the problem that the gully is easy to block and clean up inconvenience.

Contents of the invention

(1) Solved technical problems

The purpose of the present invention is to overcome the deficiencies of the prior art. The present invention provides a centrifugal anti-clogging gully, which solves the problem that the gully is easily blocked and inconvenient to clean.

(2) Technical solution

The technical solution of the present invention: a centrifugal anti-clogging rainwater outlet, including a spiral separation device and a mud collection tank; wherein: the spiral separation device includes a spiral surface, a collection pipe and a baffle, Connected together; during the rainy season, the initial rainwater carrying a large amount of sediment falls on the spiral surface through the grate of the rainwater well. The sediment is introduced into the collection pipeline, and then the sediment is separated, which effectively realizes the purpose of preventing the rainwater from clogging from the source.

The mud collecting tank is arranged at the bottom of the rainwater outlet, is rectangular, and is provided with hooks on both sides, which is convenient for picking and cleaning the mud collecting tank.

Preferably, the spiral separation device is installed inside the gully by means of suspension, so as to collect rainwater optimally when ground rainwater flows in.

Preferably, a baffle is provided on the outer edge of the first helix of the helical curved surface, which effectively prevents rainwater from splashing out of the helical curved surface and helps to form a swirl flow.

Preferably, a swirling flow is formed on the helical curved surface, and the sediment with a large specific gravity is collected to the center by centrifugal action and enters the collection pipe.

Preferably, the collecting pipe guides the separated sediment into the mud collecting tank below.

Preferably, small overflow holes are provided on the side of the mud collection tank, and there is no overflow hole on the bottom surface. During the rainy season, sediment is deposited at the bottom of the mud collection tank, and rainwater flows into the rainwater pipe from the small overflow holes on the side wall.

Preferably, large overflow holes are provided along the mud collecting tank, which is conducive to rapid drainage when the rainfall is heavy.

(3) Beneficial effects

The invention has the advantages of: it can enhance the anti-blocking function of the rainwater outlet, effectively prevent the sediment carried by the initial rainwater from depositing in the rainwater pipe, and when the rainwater manhole cover is submerged by accumulated water, it can balance the internal and external air pressure and increase the drainage capacity by about 1.3 times; cleaning is simple, reducing the cost of manual operation, without entering the rainwater well to clean up the silt.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a top view of the spiral separation device of the present invention;

Fig. 3 is a three-dimensional view of the spiral separation device of the present invention;

Fig. 4 is a sectional view of the mud collecting tank of the present invention.

In the figure, 1 is the body of the gully, 2 is the grate of the gully, 3 is the baffle, 4 is the sling, 5 is the collection pipe, 6 is the spiral surface, 7 is the mud collecting tank, 8 is the hook, and 9 is the rainwater pipe , 10 is the large overflow hole, and 11 is the small overflow hole.

Detailed ways

The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Wherein, similar elements in different implementations adopt associated similar element numbers. In the following implementation manners, many details are described for better understanding of the present application. However, those skilled in the art can readily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the application are not shown or described in the description, this is to avoid the core part of the application being overwhelmed by too many descriptions, and for those skilled in the art, it is necessary to describe these operations in detail Relevant operations are not necessary, and they can fully understand the relevant operations according to the description in the specification and general technical knowledge in the field.

The serial numbers for components in the present invention are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application all include direct and indirect connection (connection) unless otherwise specified.

Embodiment 1, please refer to Figure 1, a centrifugal anti-clogging gully, including a gully body 1, a gully grate 2, a baffle 3, a sling 4, a collection pipe 5, a spiral surface 6, and a mud collection tank 7 , hook 8, rainwater pipe 9, large overflow hole 10, overflow small hole 11.

FIG. 2 is a top view of the spiral separation device, and FIG. 3 is a three-dimensional view of the spiral separation device, including a spiral curved surface 6 , a collection pipe 5 and a baffle 3 . During the rainy season, rainwater falls on the spiral curved surface 6, and forms a swirling flow under the action of the baffle plate 3 to prevent rainwater from splashing. The centrifugal force of the swirling flow will gather the sediment with a large specific gravity to the middle, and the rainwater with a small specific gravity will be thrown out of the spiral curved surface 6. The collected silt is introduced into the bottom silt collecting tank 7 through the middle collecting pipe 5, so as to realize the effect of silt separation.

When the rainwater manhole cover is submerged by accumulated water, the air pressure in the well can reach more than 1.1atm, which is not conducive to drainage, and when the rainwater falls through the spiral separation device, it will drive the internal air circulation, and the flow of internal airflow will affect the water on the rainwater outlet to produce greater The vortex forms a hollow air hole in the middle, which balances the air pressure inside and outside the gully, increases the drainage capacity by about 1.3 times, and reduces the occurrence of local water accumulation.

Fig. 4 is a sectional view of the mud collecting tank, including the mud collecting tank 7, the hook 8, the large overflow hole 10, and the small overflow hole 11. During the rainy season, the rainwater separated by the spiral separation device flows into the mud collecting tank 7, and when the water collection capacity of the rainwater well is small, the water overflows from the overflow hole 11 and enters the rainwater pipe. The silt that is washed into during the rainy period is trapped in the mud collecting tank 7, and is taken out and cleaned regularly manually. When the water collection capacity of the rainwater well is so large that the filtration rate cannot meet the drainage needs, the water overflows from the large overflow hole 10 of the mud collecting tank 7 .

The above application is used to specifically illustrate the present invention, which is only used to help understand the present invention, and is not intended to limit the present invention. For those skilled in the technical field to which the present invention belongs, some simple deduction, deformation or replacement can also be made according to the idea of the present invention.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. A centrifugal type anti-clogging rainwater outlet is characterized in that: it comprises a spiral separation device and a mud collecting tank (7); The spiral separation device comprises a spiral surface (6), a collection pipeline (5) and a baffle plate (3), and the spiral surface (6), the collection pipeline (5) and the baffle plate (3) are fixedly connected in one; The groove (7) is arranged at the bottom of the gully body (1), the shape of the mud collecting groove (7) is rectangular, and there are hooks (8) on both sides of the top, and the upper part of the gully body (1) is provided with a grate for the gully (2). 2. A centrifugal anti-clogging gully according to claim 1, characterized in that the spiral separation device is installed inside the gully body (1) in a suspended manner through a sling (4). 3. A centrifugal anti-clogging gutter according to claim 1, characterized in that: the baffle (3) is only installed on the first helical side of the helical curved surface (6). 4. A centrifugal anti-clogging gully according to claim 1, characterized in that the spiral curved surface (6) has only two spiral surfaces. 5. A centrifugal anti-clogging rainwater outlet according to claim 1 or 4, characterized in that: the direction of the outlet of the spiral curved surface (6) is consistent with that of the rainwater outlet. 6. A centrifugal anti-clogging gutter according to claim 1, characterized in that: small overflow holes (11) and large overflow holes (10) are respectively provided on the sides of the mud collecting tank (7). 7. A centrifugal anti-clogging gutter according to claim 6, characterized in that the large overflow hole (10) is located directly above the small overflow hole (11).