CN219315934U - Sewage intercepting and draining device - Google Patents

Abstract

The utility model proposes a sewage interception and drainage device, which includes a sewage interception box, a primary filter diversion area, a filter interception area and an interception sewage discharge area; The upper part inside the sewage tank, the intercepting sewage discharge area is set at the lower part inside the sewage intercepting tank; the diversion area of the primary filter includes an inverted cone-shaped guide plate, and the guide plate is equipped with an upward sloping fence to form a sewage interception ladder; a three-layer sewage interception system is adopted The mode intercepts suspended solids from two ways of blocking and filtering, removes the intercepted suspended solids from the aspect of mud discharge, and solves the problem of blockage and siltation of rainwater collection pipes from two aspects of sewage interception and mud discharge, and improves the service life and drainage efficiency of the pipes. At the same time, the sewage interception mode can be switched at any time according to the change of the specific water volume. It can be used for low-flow rainwater or high-flow rainwater interception, so as to achieve a better sewage interception effect. It can not only be used for river/ditch pollution control of agricultural irrigation, It can also be used for urban landscape/water pollution control of key river basins, and has a wide range of applications.

Description

A sewage intercepting and drainage device

technical field

The utility model relates to the field of sewage treatment, in particular to a sewage intercepting and drainage device.

Background technique

Non-point source pollution (also known as non-point source pollution) has become the main source of water pollution. Non-point source pollution refers to the fact that under rainfall conditions, pollutants flow into receiving water bodies (including rivers, lakes, etc.) Pollution, because non-point source pollution has the characteristics of dispersion, concealment, randomness, latency, and accumulation, it is difficult to monitor, quantify, and prevent and control. The solution to non-point source pollution has become a key link in water body governance.

Rainwater is the main carrier of non-point source pollution. In the current urban construction process, most drainage systems implement the method of rainwater and sewage diversion. Through the rainwater diversion system, rainwater is collected by multiple rainwater collection devices, and then discharged into the pipe network for further processing. Centralized treatment, reuse, discharge, and the collection efficiency of rainwater collection devices determine the control effect of non-point source pollution. Due to the accumulation of a large amount of suspended solids in the process of rainwater washing and inflow, such as leaves, sand, garbage, soil and other substances, once the rainfall flow is large and the suspended solids carried in the runoff increase, these suspended solids will engulf and accumulate, and the volume will increase. At the same time, it will accumulate at the front end of the rainwater collection device. If it is not cleaned up in time, the rainwater will continue to flow to other storage sites, such as rivers, lakes and other low-lying sites. With the extension of the rainwater flow path, the suspended solids carried will increase. Accumulated pollutants also increased, aggravating non-point source pollution in the city, and at the same time posing a serious threat to the city's drainage system.

Conventional sewage interception devices rely on rainwater grates to intercept suspended solids. The structure is simple, but the drainage holes are easily blocked by garbage, leaves and sediment. When encountering heavy rain, it is easy to block, resulting in difficulties in urban drainage. In severe cases There will be casualties and associated economic losses, so improvements are needed.

Utility model content

In view of this, the utility model aims to provide a sewage intercepting and drainage device to solve the above problems.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

A sewage interception and drainage device, characterized in that it includes a sewage interception box, a primary filter diversion area, a filter interception area and an interception sewage discharge area;

The top of the sewage interception box is provided with a primary filter diversion area, the filter interception area is set at the upper part inside the sewage interception box, and the sewage interception area is set at the lower part inside the sewage interception box;

The primary filter diversion area includes an inverted cone-shaped guide plate, and the guide plate is equipped with an upward-sloping fence to form a sewage interception ladder;

The filter interception area includes a rainwater grate, a permeable basket and a water passage. The rainwater grate covers the top opening of the sewage interception box. The permeable basket and the water passage are arranged side by side under the rainwater grate, and the bottom of the water passage is connected to the top of the permeable basket. Flush, the upper water hole is set on the left side of the water passage, and the lower water hole is set above the right wall of the permeable basket. There is a sewer channel on the top;

The intercepting sewage area includes a sloping plate, a first baffle, a second baffle, a baffle rod, a connecting plate, an anti-floating plate and a sewage discharge assembly; Below the hole; the first baffle plate and the second baffle plate are vertically arranged in the space on the right side of the inclined plate, and the tops of the first baffle plate and the second baffle plate are connected with several baffle rods arranged side by side. The top of the connecting plate is connected with a connecting plate, and the baffle rod is arranged obliquely. The baffle rod connected with the first baffle plate is connected with the inclined plate to form a V shape. The space below the connecting plate is also equipped with a horizontal anti-floating plate. A suspended matter storage room is formed; a drainpipe is connected to the side wall of the dirt intercepting box above the anti-floating plate, and the sewage discharge assembly communicates with the suspended matter storage room.

Further, the guide plate includes 4 curved guide plates and 4 rectangular guide plates, the rectangular guide plates are respectively fixed on the 4 sides of the top of the sewage intercepting box, and the 4 arc guide plates are detachably installed between every 2 adjacent rectangular guide plates , 4 curved guide plates and 4 rectangular guide plates together form an inverted tapered structure.

Further, a slot is provided on the side wall of the arc-shaped guide plate, and an insertion strip used in conjunction with the slot is provided on the side wall of the rectangular guide plate.

Further, the rectangular guide plate is arranged obliquely, and the angle between the rectangular guide plate and the vertical line is 60°.

Further, the permeable basket is fixed on the lower surface of the rainwater grate through the lifting rod.

Further, a handle is provided on the upper surface of the rainwater grate.

Further, the connecting plate is arranged horizontally, and the connecting plate is flush with the bottom of the permeable basket.

Further, the sewage discharge assembly includes sewage discharge branch pipes, valves, sewage discharge main pipes, sewage discharge pumps and sewage discharge pipes; there are two sewage discharge branch pipes, which are respectively connected to two suspended solids storage rooms, and the sewage discharge branch pipes are equipped with valves, and the sewage discharge branch pipes are connected to the sewage discharge pumps through the sewage discharge main pipes , The sewage pump is also connected to the sewage pipe.

Compared with the prior art, the sewage interception and drainage device described in the utility model has the following advantages:

(1) The sewage interception and drainage device described in the utility model is provided with a primary filter diversion area, a filter interception area and an interception sewage discharge area. First, the sewage passes through the primary filter diversion area, and after being intercepted by a fence, a part of suspended matter is intercepted. The rainwater continues to flow downward and enters the filter interception area; in the filter interception area, when the rainfall is small, the rainwater flows downward after being filtered by the rainwater grate, part of it directly flows into the permeable basket, and part of it first passes through the water channel and then enters the permeable basket. After the filter screen is filtered, the large particle suspended matter is removed, and the rainwater from which the suspended matter is removed is discharged from the sewer channel under the filter screen. When the rainfall is heavy, the rainwater flows into the intercepting sewage area through the lower water hole, and the rainwater flows into the area surrounded by the second baffle and the first baffle from the gap between the baffle rod, and the suspended matter slides down into the suspended matter storage room, and the anti-floating plate It can prevent suspended matter from being suspended again under hydraulic disturbance, thereby improving the interception effect of suspended matter. Finally, the suspended matter is discharged from the sewage pipe, and the water body from which the suspended matter has been removed is discharged from the drain pipe. Through the above measures, the purpose of rapid drainage and purification can be achieved.

(2) The sewage interception and drainage device described in the utility model can switch the sewage interception mode at any time according to the change of the specific water volume, and can be used for low-flow rainwater or high-flow rainwater interception, so as to achieve better sewage interception effect, It can be used not only for river/ditch pollution control of agricultural irrigation, but also for urban landscape/water body pollution control of key river basins, with a wide range of applications.

(3) The sewage interception and drainage device described in the utility model adopts a three-layer sewage interception mode, which intercepts suspended solids in two ways of blocking and filtering, and removes intercepted suspended solids from the aspect of mud discharge, and intercepts sewage + mud discharge. Solve the problem of clogging and silting of rainwater collection pipes, and improve the service life and drainage efficiency of pipes.

(4) The sewage intercepting and drainage device described in the utility model can solve the unpleasant gas generated by the accumulation of pollutants in the pipeline, the suspended water-permeable basket net can play a good ventilation effect, and the water hole can play the role of overflow and slow flow Function, avoid the accumulation of rainwater, the unpleasant gas produced by the fermentation of garbage, suspended solids, etc., so as to solve the odor problem from the source.

(5) The sewage intercepting and drainage device described in the utility model is easy to disassemble and easy to maintain. The filter screen can be easily replaced by pulling the handle, and the pollution intercepting ability of the sewage intercepting ladder can be restored through the detachable arc guide plate, which is convenient to operate.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a schematic structural view of the sewage interception and drainage device described in the embodiment of the present invention;

Fig. 2 is a perspective view of the internal structure of the sewage interception and drainage device described in the embodiment of the present invention;

Fig. 3 is a cross-sectional view of the sewage interception and drainage device described in the embodiment of the present invention;

Fig. 4 is a schematic structural view of the filtering and intercepting area described in the embodiment of the present invention;

Fig. 5 is an internal structure diagram of the sewage interception and drainage device described in the embodiment of the present invention;

Fig. 6 is a schematic structural view of the curved guide plate described in the embodiment of the present invention;

Fig. 7 is a schematic structural view of the rectangular guide plate described in the embodiment of the present invention.

Explanation of reference signs:

1. Sewage interception box; 2. Primary filter diversion area; 21. Arc guide plate; 211-slot; 22. Rectangular guide plate; 221-cutting strip; ; 32, lifting rod; 33, permeable basket; 34, filter screen; 35, water channel; 36, upper water hole; 37, lower water hole; 38, sewer channel; 39, rainwater grate; 4, intercepting sewage District; 41, inclined plate; 42, first baffle; 43, second baffle; 44, baffle bar; 45, connecting plate; 46, anti-floating plate; 47, suspended matter storage room; 48, sewage pumping assembly; 481. Sewage branch pipe; 482. Valve; 483. Sewage supervisor; 484. Sewage pump; 485. Sewage pipe; 49. Drainage pipe.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In describing the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. Novel and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention through specific situations.

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

A sewage interception and drainage device, comprising a sewage interception box 1, a primary filter diversion area 2, a filter interception area 3 and an interception sewage discharge area 4;

The top of the sewage interception box is provided with a primary filter diversion area, the filter interception area is set at the upper part inside the sewage interception box, and the sewage interception area is set at the lower part inside the sewage interception box;

The primary filtration diversion area includes an inverted cone-shaped guide plate, on which an upwardly inclined fence 23 is provided to form a dirt interception ladder;

Specifically, the guide plates include 4 arc-shaped guide plates 21 and 4 rectangular guide plates 22, the rectangular guide plates are respectively fixed on the 4 sides of the top of the sewage intercepting box, and the 4 arc-shaped guide plates are detachably installed on every 2 adjacent rectangular guide plates. Between the guide plates, 4 curved guide plates and 4 rectangular guide plates jointly form an inverted tapered structure.

More specifically, a slot 211 is provided on the side wall of the arc-shaped guide plate, and an insertion strip 221 used in conjunction with the slot is provided on the side wall of the rectangular guide plate.

The rectangular guide plate is arranged obliquely, and the angle between the rectangular guide plate and the vertical line is 60°.

When the rainwater flows in from around the top of the sewage intercepting box, after being intercepted by the fence 23, a part of the suspended matter is intercepted, and the rainwater continues to flow downwards and enters the filter interception area. To achieve a good interception effect, as the suspended matter accumulated on the interception plate increases, the arc-shaped guide plate is removed and the sundries on it are cleaned, and the interception capacity of the interception plate can be restored.

The filter interception area includes a rainwater grate 39, a permeable basket 33 and a water passage 35. The rainwater grate covers the top opening of the dirt interception box, and the permeable basket and the water passage are arranged side by side under the rainwater grate. The bottom of the channel is flush with and connected to the top of the permeable basket. The upper water hole is provided on the left side of the water passage, and the lower water hole is provided above the right wall of the permeable basket; the surrounding of the permeable basket is a dense structure, and the bottom is provided with a There is a filter screen 34, the filter screen is detachable and installed, and the side wall of the dirt intercepting box below the permeable basket is provided with a drainage channel;

Specifically, the permeable basket is fixed on the lower surface of the rainwater grate through the lifting rod 32, and the upper surface of the rainwater grate is provided with a handle 31.

After the rainwater is filtered by the rainwater grate, part of it flows directly into the permeable basket, and part of it first passes through the water channel and then enters the permeable basket. After being filtered by the filter, the large particles of suspended matter are removed, and the rainwater with the removed suspended matter is discharged from the sewer channel under the filter screen. . During the actual low rainfall operation, the rainwater passes through the sewage interception ladder to remove suspended solids, and then passes through the rainwater grate. The rainwater that passes through the left rainwater grate directly passes through the permeable basket and is discharged from the sewer channel under the permeable basket, while the rainwater that passes through the right rainwater grate passes through the permeable basket. The water channel reaches the permeable basket through the upper water hole, and is discharged from the sewer channel below the permeable basket. When the rainfall is heavy, the water level in the permeable basket rises, and the rainwater flows into the interception sewage area through the lower water hole.

The interception sewage area is mainly used for the removal of suspended solids in the case of a surge in water volume. The interception sewage area includes a slant plate 41, a first baffle plate 42, a second baffle plate 43, a baffle rod 44, a connecting plate 45, an anti-floating plate 46 and a sewage discharge area. Component 47; the slanting plate is set on the right side of the permeable basket inclined downward, and the sloping plate is located below the lower water hole. Specifically, the upper end of the sloping plate is connected to the right side of the permeable basket and is flush with the bottom of the filter screen; the first The baffle plate and the second baffle plate are vertically arranged in the space on the right side of the inclined plate, and the distance between the two is 15-20cm. The tops of the first baffle plate and the second baffle plate are connected with several side-by-side baffle plates. Rod 44, the top of the retaining rod is connected with a connecting plate, so that the retaining rod is fixed, the retaining rod is arranged obliquely, the retaining rod connected with the first retaining plate is connected with the inclined plate and forms a V shape, and the space below the connecting plate is also provided There is an anti-floating plate arranged horizontally, and a suspended matter storage chamber is formed under the anti-floating plate; a drainpipe is connected to the side wall of the sewage intercepting box above the anti-floating plate, and the sewage discharge component is connected with the suspended matter storage room. There is an opening between the anti-floating plate and the guide plate, which is convenient for the suspended matter to slide down into the suspended matter storage room. The anti-floating plate can also prevent the suspended matter from re-suspending under hydraulic disturbance, thereby improving the interception effect of the suspended matter.

Specifically, the connecting plate is arranged horizontally, and the connecting plate is flush with the bottom of the permeable basket.

Specifically, the sewage discharge assembly includes a sewage discharge branch pipe 481, a valve 482, a sewage discharge main pipe 483, a sewage discharge pump 484, and a sewage discharge pipe 485; The sewage pump is connected through the sewage main pipe, and the sewage pump is also connected with the sewage pipe.

When the amount of rainwater increases sharply, the rainwater washes the ground, and the soil erosion in some places increases, and the suspended solids such as sediment carried in the rainwater increase. The water flow is not smooth. At this time, the rainwater overflows from the lower water hole on the right side of the permeable basket and enters the interception sewage area. Under the drainage effect of the inclined plate, the water passes through the retaining rod, and the suspended matter settles to the suspended matter storage room after passing through the retaining rod. , the anti-suspension plate above the suspended solids storage room can effectively prevent the sediment from floating up. When the accumulated amount of suspended solids is large, open the valve, and the suspended solids will be pumped out from the suspended solids storage room into the sewage main pipe under the action of the pump. , the suspended matter is discharged from the sewage pipe, and the water body from which the suspended matter has been removed is discharged from the drain pipe. Through the above measures, the purpose of rapid drainage and purification is achieved.

Example

The experimental site is Lingnan Co., Ltd. experimental base. The experimental group placed the device under the slope, collected the influent and effluent in real time, and studied the removal rate of suspended solids when the device was operated for two hours under light rain and heavy rain. The control group is the rainwater grate facility used for normal rainwater treatment, and the removal rate of suspended solids is observed after two hours of operation.

Table 1 Suspended solids removal effect under different rainfall

从表1可以看出，随着雨量的增大，径流的悬浮物质含量增多，普通的雨水设施能起到一定的截留悬浮物的效果，随着雨水量的增大对径流的去除效率降低，在暴雨存在的情况下径流中悬浮物的去除率仅为23.1％，本装置可有效提高径流中悬浮物的去除效率，与普通雨水设施相比对小雨、大雨和暴雨的悬浮物去除率提高53.9％、48.8％和48.3％，即便在暴雨的情况下径流中的悬浮物去除效率依然较高。

It can be seen from Table 1 that with the increase of rainfall, the content of suspended matter in runoff increases. Ordinary rainwater facilities can play a certain role in intercepting suspended matter. With the increase of rainfall, the removal efficiency of runoff decreases. In the presence of heavy rain, the removal rate of suspended matter in runoff is only 23.1%. This device can effectively improve the removal efficiency of suspended matter in runoff. Compared with ordinary rainwater facilities, the removal rate of suspended matter in light rain, heavy rain and heavy rain is increased by 53.9% %, 48.8% and 48.3%, even in the case of heavy rain, the removal efficiency of suspended solids in runoff is still high.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (8)

1. A sewage interception and drainage device is characterized in that: comprises a sewage interception box, a primary filtering and guiding area, a filtering and intercepting area and a sewage interception area;

the top of the sewage interception box is provided with a primary filtering guide area, a filtering interception area is arranged at the upper part of the inside of the sewage interception box, and an interception sewage disposal area is arranged at the lower part of the inside of the sewage interception box;

the primary filtering guide area comprises an inverted cone-shaped guide plate, and an upward inclined baffle plate is arranged on the guide plate to form a dirt interception step;

the filtering and intercepting area comprises a rainwater grate, a permeable basket and a water passing channel, the rainwater grate is covered at the opening at the top end of the sewage interception box, the permeable basket and the water passing channel are arranged below the rainwater grate in parallel, the bottom of the water passing channel is flush with the top of the permeable basket, an upper water passing hole is formed in the left side of the water passing channel, and a lower water passing hole is formed in the upper side of the right side wall of the water passing basket; the bottom of the water permeable basket is provided with a filter screen, and the side wall of the sewage interception box below the water permeable basket is provided with a water drainage channel;

the interception and sewage disposal area comprises an inclined plate, a first baffle, a second baffle, a stop lever, a connecting plate, an anti-suspension plate and a sewage disposal assembly; the inclined plate is arranged on the right side of the water permeable basket in a downward inclined way, and is positioned below the water draining holes; the first baffle and the second baffle are vertically arranged in the space on the right side of the sloping plate at intervals, the top ends of the first baffle and the second baffle are connected with a plurality of stop rods which are arranged side by side, the top ends of the stop rods are connected with a connecting plate, the stop rods which are obliquely arranged, the stop rods which are connected with the first baffle are connected with the sloping plate and form a V shape, the space below the connecting plate is also provided with a horizontally arranged anti-suspension plate, and a suspended matter storage chamber is formed below the anti-suspension plate; the side wall of the sewage interception box above the anti-suspension plate is connected with a drain pipe, and the sewage disposal assembly is communicated with the suspended matter storage chamber.

2. The sewage interception and drainage device of claim 1, wherein: the baffle includes 4 arc baffle and 4 rectangle baffle, and 4 arc baffle are respectively fixed on 4 edges of intercepting dirty case top, and 4 arc baffle demountable installation are respectively between every 2 adjacent rectangle baffle, and 4 arc baffle and 4 rectangle baffle enclose into the back taper structure jointly.

3. The sewage interception and drainage device of claim 2, wherein: the side wall of the arc-shaped guide plate is provided with a slot, and the side wall of the rectangular guide plate is provided with an inserting strip matched with the slot.

4. The sewage interception and drainage device of claim 2, wherein: the rectangular guide plate is obliquely arranged, and the included angle between the rectangular guide plate and the vertical line is 60 degrees.

5. The sewage interception and drainage device of claim 1, wherein: the water permeable basket is fixed on the lower surface of the rainwater grate through the lifting rod.

6. The sewage interception and drainage device of claim 1, wherein: the upper surface of the rain grate is provided with a handle.

7. The sewage interception and drainage device of claim 1, wherein: the connecting plate level sets up, and the connecting plate flushes with the bottom of basket that permeates water.

8. The sewage interception and drainage device of claim 1, wherein: the sewage disposal assembly comprises a sewage disposal branch pipe, a valve, a sewage disposal main pipe, a sewage disposal pump and a sewage disposal pipe; the number of the sewage branch pipes is 2, the sewage branch pipes are respectively communicated with 2 suspended solid storage chambers, the sewage branch pipes are provided with valves, the sewage branch pipes are connected with a sewage pump through a main sewage pipe, and the sewage pump is also connected with a sewage pipe.

Images