CN107119781A - A kind of automatic sewage collection system of urban flood control and drainage and method - Google Patents

Abstract

The invention discloses an automatic sewage collection device and method for urban flood control and drainage. The sewage lifting pipe includes a tube barrel, a screw rod, and a spiral leaf; the upper part of the spiral sewage lifting pipe is connected to a conduit, and the outlet of the conduit is facing the sewage collection pool; the screw rod extends out of the spiral sewage lifting pipe, passes through the sewage lifting pool, and three blades are installed at the lower part; The upper part of the water guide ring is fixed on the wall of the rainwater well, the lower part of the water guide ring is closed, and the bottom is aligned with the center of the blade; the vertical section of the water guide ring is concave upward, and there is a spiral water guide groove on the upper surface; the fence is fixed on the rainwater wellhead ring The side is a stainless steel annular mesh structure, which can intercept large debris such as branches and garbage; the invention can collect pollutants and silted impurities while draining water, and realize the purpose of automatic flood drainage and filtration, and recycling of pollutants and silt.

Description

An automatic sewage collection device and method for urban flood control and drainage

technical field

The invention relates to the field of urban drainage, in particular to an automatic sewage collection device for urban flood control and drainage.

Background technique

The existing urban flood drainage design standards and related regulations are relatively old. During the rainy season every year, a large number of cities experience flooding and poor drainage, which have a great impact on people's lives and transportation. Road drainage and rainwater wells have become bottlenecks for smooth flood discharge; the lower parts of existing rainwater wells are connected to drainage pipes, and some rainwater wells are also equipped with baskets to intercept dirt and prevent blockage of drainage pipes. However, under heavy rain and waterlogging of a large amount of pollutants, pollutants often silt up and block drainage pipes. At the same time, a large amount of rainwater carries pollutants such as particles, garbage, and silt into urban rivers, which has a great impact on river water quality and river ecology.

Therefore, it is necessary to provide a pollutant collection device that can effectively collect pollutants and silted impurities while draining water, so as to realize the separation and filtration of rainfall and sewage, and the collection and disposal of pollutants and silt.

Contents of the invention

The object of the present invention is to provide an automatic sewage collection device and method for urban flood control and drainage, so as to realize the purpose of filtering and intercepting pollutants while discharging urban rainfall and flood.

In order to solve the above technical problems, the technical solution adopted in the present invention is an automatic sewage collection device for urban flood control and drainage, which includes a spiral sewage lifting pipe, a conduit, a sewage collection pool, a trash rack, a sewage guide ring, a sewage lifting pool, a water guide circle, blade; the spiral sewage lifting pipe includes a tube, a screw rod, and a spiral leaf; the upper part of the spiral sewage lifting pipe is connected to a conduit with a cover on the top, and the outlet of the conduit is facing the sewage collection tank; the screw rod extends out of the spiral sewage lifting pipe, Through the sewage lifting pool, multiple blades are installed at the lower part; the upper part of the water guide ring is attached to the well wall of the drainage well, and the top is fixedly connected with the bottom of the trash rack and the top of the sewage guide ring; the lower part of the water guide ring is closed, and the bottom is aligned with the center of the blade The vertical section of the lower part of the water guide ring is a concave arc, and the upper surface has a spiral water guide groove; the fence is fixed on the edge of the rainwater wellhead circle, and is a stainless steel ring mesh structure, which can intercept large debris such as branches and garbage.

Among them, the water guide ring is made of stainless steel, and the spiral water guide groove is a spiral water guide groove; due to the influence of the geostrophic deflection force, the direction of water flow in the northern and southern hemispheres is different when the water flow is discharged, and the spiral water guide groove used in the southern hemisphere turns clockwise and Distribution, spiral gutters for northern hemisphere turning and distribution counterclockwise.

Among them, the blade is fixed to the screw rod through the blade shaft; the extension line of the lower side of the water guiding ring intersects with the blade shaft and the center of the blade to ensure the stability of the force, and at the same time improve the efficiency of converting the impact force of the water flow into the rotational force of the screw rod.

Among them, the inlet of the conduit is higher than the outlet; the orifice of the trash rack is a vertical orifice. In order to prevent silting and intercept large-volume debris, the width of the orifice is greater than 5cm; the grid-shaped stainless steel material of the trash guide ring has grid holes Divided along the radial direction, it is beneficial for pollutants to flow into the sewage lifting pool; the sewage lifting pool is a stainless steel groove, and the side of the sewage lifting pool is higher than the bottom edge of the tube.

A method for an automatic sewage collection device for urban flood control and drainage, characterized in that it includes the following methods of use:

Step 1: Pollutant collection, collect large particles and floating pollutants in urban rainfall and floods through trash racks, and at the same time, pollutants and silted impurities with a diameter less than or equal to 5cm are introduced into the sewage lifting pool;

Step 2: Driven by hydraulic power, the rainwater collects and falls into the rainwater well. The potential energy is converted into kinetic energy through the water guide ring, which impacts the blades and drives the screw to rotate;

Step 3: Pollutant migration, the spiral sewage pipe rotates through the screw rod, drives the rotation of the spiral blade, promotes the mixture formed by rainwater mixed with particulate pollutants to lift and move, and transports it to the sewage collection tank through the conduit, or conveys it through the conduit to other transport vehicles for subsequent transport, sedimentation, and consolidation treatment.

Compared with prior art, the beneficial effect of the present invention is:

While discharging urban rainfall and floods, it realizes the effective separation and collection of large, medium and small pollutants, and filters the water entering underground drainage pipes and flood control channels.

A water guide ring with a specific shape is established, through the blades and the spiral sewage pipe, the hydraulic power is converted into a lifting force, and the small particle pollutants and impurities are automatically transported and recovered.

A water guide groove of a specific shape has been established to facilitate the rapid discharge of water flow and form an effective impact force, avoiding poor drainage caused by water seals.

Description of drawings

Figure 1 is a schematic diagram of the style of a traditional drainage well.

Fig. 2 is a schematic structural diagram of an embodiment of the present invention.

Figure 3 is a schematic diagram of the structure of the screw rod and the screw blade.

Figure 4 is a schematic diagram of the water guide ring structure.

Figure 5 is a schematic diagram of the relationship between the water guide ring and the blade structure.

detailed description

The principles and features of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 5, the invention includes a spiral sewage pipe, a conduit, a sewage collection tank, a trash rack, a sewage guide ring, a sewage pool, a water guide ring, and a blade; the spiral sewage pipe includes a tube, Spiral rod, spiral leaf.

The water guide ring is fixed on the wall of the rainwater well, the lower part of the water guide ring is closed, and the bottom is aligned with the center of the blade.

The vertical section of the lower part of the water guide ring is an upward concave arc, and the upper surface has a spiral water guide groove, which is used to guide the water flow, smooth the flow state, and improve the energy conversion efficiency and the water discharge efficiency.

The pollution fence is fixed on the edge of the rainwater wellhead, and it is a stainless steel ring mesh structure, which can intercept large debris such as branches and garbage, and realize the first analysis and interception of pollutants.

There are three evenly distributed blades on the screw rod. The water flow guided by the water guide ring hits the blades from multiple angles to ensure the stability of the force on the blades, and at the same time convert the impact force of the water flow into the rotation force of the screw rod.

Among them, the inlet of the conduit is higher than the outlet; the trash rack is a vertical grid orifice, in order to prevent fine pollutants from silting up and intercept large-volume debris at the same time, the lateral width of the orifice is greater than 5cm; the trash guide ring is in the shape of a radial grid The stainless steel material facilitates the flow of pollutants into the sewage lifting pool; the sewage lifting pool is made of stainless steel grooves, and the side of the sewage lifting pool is higher than the bottom of the tube.

The primary filtration is to collect large particles and floating pollutants in the urban rainfall and flood through the trash rack; the secondary filtration is to introduce medium and small particle pollutants and silted impurities into the sewage lifting pool through the sewage guide ring.

In order to improve the efficiency of hydraulic drive, there needs to be a sufficient height difference between the water flow from the road surface to the blades, and at the same time, the height difference between the sewage lifting tank and the conduit is relatively small; the former is more than twice that of the latter.

In the actual installation process, it is necessary to install brackets on the spiral sewage pipe and conduit.

In the case of less water flow on the ground and more pollutants and silt, in order to facilitate the cleaning of the ground, the ground can be washed with water to flush the pollutants into the sewage lifting pool, and at the same time, a power pump is connected to the top of the spiral sewage lifting pipe to drive the screw rod. Carry out sewage collection.

The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, Simplifications should be equivalent replacement methods, and all are included in the protection scope of the present invention.

Claims (5)

1. An automatic sewage collection device for urban flood control and drainage, characterized in that: it comprises a spiral sewage pipe, a conduit, a sewage collection tank, a trash rack, a sewage guide ring, a sewage lift pool, a water guide ring, and a blade; The sewage lifting pipe includes a tube, a screw rod, and a spiral blade; the upper part of the spiral sewage lifting pipe is connected to the conduit, the top is covered, and the conduit outlet is facing the sewage collection pool; the screw rod extends out of the spiral sewage lifting pipe, passes through the sewage lifting pool, and the lower part is installed Multiple blades, the blades are evenly distributed; the upper part of the water guide ring is attached to the wall of the drainage well, and the top is fixedly connected with the bottom of the trash rack and the top of the trash guide ring; the lower part of the water guide ring is closed, and the bottom is aligned with the center of the blade; the water guide ring The vertical section of the lower part is a concave arc, and there is a spiral water guide groove on the upper surface; the fence is fixed on the edge of the rainwater wellhead, and it is a stainless steel ring mesh structure, which can intercept large debris such as branches and garbage. 2. A kind of automatic sewage collection device for urban flood control and drainage according to claim 1, characterized in that, the water guide ring is a stainless steel structure, and the spiral water guide groove is a spiral water guide groove; The direction of water flow in the northern and southern hemispheres is different when the water flow is discharged. The spiral aqueduct used in the southern hemisphere turns and distributes clockwise, and the spiral aqueduct used in the northern hemisphere turns and distributes counterclockwise. 3. A kind of automatic sewage collection device for urban flood control and drainage according to claim 2, characterized in that, the blade is fixed with the screw rod through the blade shaft; The force is stable, and at the same time, the efficiency of converting the impact force of the water flow into the rotational force of the screw rod is improved. 4. A kind of automatic sewage collection device for urban flood control and drainage according to claim 3, characterized in that, the inlet of the conduit is higher than the outlet; Large-volume sundries, the width of the orifice is greater than 5cm; the grid-shaped stainless steel material of the pollution guide ring, the grid holes are divided along the radial direction, which is conducive to the flow of pollutants into the sewage lifting pool; the sewage lifting pool is a stainless steel groove, and the edge of the sewage lifting pool higher than the bottom edge of the tube. 5. The method of a kind of automatic sewage collection device for urban flood control and drainage according to claim 4, characterized in that it comprises the following methods of use: Step 1: Pollutant collection, collect large particles and floating pollutants in urban rainfall and floods through trash racks, and at the same time, pollutants and silted impurities with a diameter less than or equal to 5cm are introduced into the sewage lifting pool; Step 2: Driven by hydraulic power, the rainwater collects and falls into the rainwater well. The potential energy is converted into kinetic energy through the water guide ring, which impacts the blades and drives the screw to rotate; Step 3: Pollutant migration, the spiral sewage pipe rotates through the screw rod, drives the rotation of the spiral blade, promotes the mixture formed by rainwater mixed with particulate pollutants to lift and move, and transports it to the sewage collection tank through the conduit, or conveys it through the conduit to other transport vehicles for subsequent transport, sedimentation, and consolidation treatment.