CN214050748U - Municipal administration rain sewage hold back device - Google Patents

Abstract

The utility model provides a municipal administration rain sewage hold back device. Municipal administration rain sewage hold back device including setting up the sedimentation tank that connects gradually along the rivers direction on the river course and holding back the well, hold back well upper portion and be the cascaded structure that increases in proper order along the rivers direction, be equipped with the enclosure part that a plurality of was used for intaking or held back on every ladder of holding back the well respectively, hold back the well and seted up the delivery port along the river course downstream direction, municipal administration rain sewage hold back device adopt cascaded siphon of falling hold back structure, appear the overflow when having avoided the instantaneous water yield of rainy season great and cause the incomplete condition of cutting dirty.

Description

Municipal administration rain sewage hold back device

Technical Field

The utility model belongs to the water treatment field especially relates to a municipal administration rain sewage hold back device.

Background

Along with the increase of urban population, the water demand and the water consumption of cities are gradually increased, the sewage interception, diversion and transformation strength of urban and rural rainwater and sewage combined pipelines is also continuously increased, and the intercepting well is used in a rainwater and sewage combined system and aims at separating rainwater and sewage. In dry seasons, the intercepting well can intercept sewage because only sewage exists in the pipe, in rainy seasons, part of rainwater and sewage are intercepted and flow into the sewage pipe, and the rest of rainwater overflows through the weir in the well and continues to flow downstream.

The intercepting well that now commonly used has three kinds, jump intercepting well, weir formula intercepting well and slot type intercepting well, especially in the northern city of china, when the instantaneous inflow of rainy season is great, just overflow can appear, overflow to the water after mixing the great rainwater of earlier stage pollutant with the less rainwater of later stage pollutant very easily, cause the effect of intercepting the dirt very unsatisfactory, consequently, need improve current trapping apparatus, appear the overflow when avoiding the instantaneous inflow of rainy season great and cause the incomplete condition of intercepting the dirt.

Disclosure of Invention

In view of this, the utility model aims at providing a municipal administration rain sewage hold back device to overcome prior art's defect, adopt cascaded inverted siphon to hold back the structure, can appear the overflow when having avoided the instantaneous inflow in rainy season great and cause and cut dirty incomplete condition.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this: the municipal rainwater and sewage interception device comprises a sedimentation tank and an interception well which are arranged on a river channel and are sequentially connected along the water flow direction, wherein the height of the sedimentation tank is lower than that of the river channel, and the height of the interception well is lower than that of the sedimentation tank; the sedimentation tank is provided with the water inlet with the river course junction, the up end of holding back the well is along the cascaded structure that rivers direction is increased in proper order, be equipped with the closed part that a plurality of is used for into water and holds back on every ladder of holding back the well respectively, the delivery port has been seted up along river course downstream direction one side to the well of holding back.

Furthermore, the stepped structure at the upper part of the intercepting well is divided into a first step, a second step and a third step, two sealing parts with the same size are respectively arranged on the first step and the second step, and a sealing part is arranged on the third step.

Furthermore, the closed component comprises a well lid and a filter screen which are movably connected and a well mouth positioned below the well lid.

Furthermore, a circle of bulges are arranged on the edge of the well mouth, a sealing ring is arranged on the bulges, the well cover is of an upward concave structure, and the well cover is clamped with the bulges of the well mouth;

furthermore, a supporting block is obliquely arranged on the inner wall of the sedimentation tank along the direction of the water inlet; the supporting blocks are used for supporting the grating.

Further, flexible filler is arranged on the grating.

Furthermore, a filter screen is movably connected to the well cover.

Compared with the prior art, municipal administration rain sewage hold back device have following advantage:

the municipal rainwater and sewage interception device of the utility model is provided with the inverted siphon type interception well device, so that overflow can be avoided when the water quantity is large in rainy season, the capacity of accommodating water between the sedimentation tank and the interception well is increased, and rainwater and sewage in a river channel can be completely intercepted; carry out preliminary filtration through setting up the grid earlier to the water in the river course, get into the sedimentation tank and deposit, get into at last and hold back the well, guaranteed the precipitation and the filterable effect to rain sewage.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic view of the municipal rainwater sewage structure of the present invention;

FIG. 2 is a schematic view of a well cover of a sewage well according to the present invention;

FIG. 3 is a sectional view of the sedimentation tank of the present invention;

description of reference numerals:

1-river channel; 2-a sedimentation tank; 21-activated carbon; 22-quartz sand; 23-a grid; 24-a support block; 3-intercepting the well; 31-a first step; 32-a second step; 33-third step; 4-a closure member; 41-well cover; 42-well head; 43-convex; 44-sealing ring; 45-filtering the filter screen; and 5, a water outlet.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The utility model provides a municipal administration rain sewage's entrapment device, including setting up sedimentation tank 2 and the entrapment well 3 that connect gradually along the rivers direction on the river course, sedimentation tank 2 highly be less than the river course, and dirty rainwater is by 1 homeotropic inflow sedimentation tank 2 in the river course, is provided with supporting shoe 24 along the direction slope of intaking on 2 inner walls in sedimentation tank, supporting shoe 24 is used for supporting grid 23, be provided with flexible filler on grid 23 for hold back the suspended solid of river water in the river course, like rubbish such as leaf, supporting shoe 25 is used for supporting grid's detachable construction can inspect or clear up the suspended solid that grid 23 held back at any time, and quartz sand 22 and active carbon 21 have been placed to sedimentation tank 2 middle bottom, are used for filtering particulate matter, suspended solid and silt, regularly clear up 2 filterable particulate matter in sedimentation tank bottom and silt, and the water after sedimentation tank 2 filters gets into the entrapment well 3.

The upper end surface of the intercepting well 3 is of a stepped structure which is sequentially increased along the water flow direction, a plurality of water inlet or intercepting sealing parts 4 are respectively arranged on each step, the height of the intercepting well 3 is lower than that of the sedimentation tank 2, and a water outlet 8 is formed in the intercepting well 3 along the downstream direction of the river; the stepped structure at the upper part of the interception well 3 is divided into a first step 31, a second step 32 and a third step 33; be provided with two enclosure parts 4 that the size equals on first ladder 31 and the second ladder 32 respectively, be provided with an enclosure part 4 on the third ladder 33, the well head 4 diameter on the third ladder 33 is greater than well head 4 diameter on first ladder 31 and the second ladder 32, makes things convenient for rivers to get into third ladder 33 and can increase rivers and get into holding back in the well 3.

The sealing component 4 is composed of a well cover 41 and a filter screen 45 which are movably connected and a well mouth 42 which is positioned below the well cover, a bulge 43 is arranged on the edge of the well mouth 4, a sealing ring 44 is arranged on the bulge 43, the well cover 41 is of an upwards inwards concave structure, the well cover 41 is connected with the bulge 43 of the well mouth 42 in a clamping way, in order to increase the sealing performance of the sealing component 4 on the first step 31 and the second step 32, the well cover 43 is of an upwards inwards concave structure and is connected with the bulge 43 on the edge of the well mouth 42 in a clamping way, in order to further improve the sealing performance, a circle of sealing ring 44 is arranged on the bulge 43 on the edge of the well mouth 42, the filter screen 45 is also connected at the joint of the well cover 41 and the well mouth 42 and is used for filtering large-particle impurities of rain sewage, a large amount of silt can be accumulated at the bottom of the sewage intercepting well 3 along with the accumulation of time, and the silt is pumped away by an external sludge sewage pump, further carrying out sludge treatment.

The working principle is as follows:

in northern dry season, sewage in river course 1 passes through the water pump and flows into sedimentation tank 2 from the upper reaches, grid 23 on the sedimentation tank 2 carries out preliminary filtration to particulate matter and other impurity in the sewage, sewage accumulation after filtering continues to flow to certain water level and holds back well 3, at this moment, hold back well lid 41 on the well 3 and be in the open mode, sewage gets into through filter screen 45 and holds back well 3, other impurity in order to avoid sedimentation tank 2 gets into and holds back well 3, reach the height of delivery port 5 when holding back the water level in the well 3, sewage flows out the low reaches in river course 1 from delivery port 5.

In northern rainy season, due to seasonal rainfall, a large amount of rainwater enters the river channel 1, due to the accumulation of a large amount of rainwater and domestic sewage in the river channel 1 and the impulsive force of the water flow, the rainwater and sewage directly flow to the downstream river channel 1 without overflowing through the sedimentation tank 2, the rainwater and sewage in the river channel cannot be completely intercepted, when the rainy season comes or the water in the river channel 1 exceeds the height of the sedimentation tank 2, the well cover 41 on the first step 31 is covered, when the rainwater and sewage exceeds the first step 31, the well cover 41 on the second step 32 is covered, so that the rainwater and sewage does not enter the intercepting well 3 firstly, and the rainwater and sewage is intercepted at the sedimentation tank 2 and the second step 32 on the intercepting well 3, so that the capacity of the water between the sedimentation tank 2 and the intercepting well 3 is increased, and the incomplete rainwater and sewage treatment caused by the fact that the water impulsive force directly enters the downstream river channel 1 is avoided, when rain sewage accumulates to a certain height, the rain sewage enters the intercepting well 3 from the well mouth 4 on the third step 33, the inflow rain water amount in the intercepting well 3 continuously increases along with the continuous rainfall, when the height of the rain sewage in the intercepting well 3 reaches the height of the sedimentation tank, the rain sewage in the sedimentation tank 2 and the formed water potential in the intercepting well 3 are balanced to form an inverted siphon effect, and when the rain sewage continuously increases, the rain sewage flows to the downstream from the water outlet 5 on the intercepting well 3.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a trapping apparatus of municipal administration rain sewage which characterized in that: the municipal rainwater and sewage interception device comprises a sedimentation tank (2) and an interception well (3) which are arranged on a river channel (1) and are sequentially connected along the water flow direction, wherein the height of the sedimentation tank (2) is lower than that of the river channel (1), and the height of the interception well (3) is lower than that of the sedimentation tank (2); sedimentation tank (2) are provided with the water inlet with the river course junction, the up end that holds back well (3) is the cascaded structure that increases in proper order along the rivers direction, be equipped with closure part (4) that a plurality of is used for intaking or holds back on every ladder that holds back well (3) respectively, it has seted up delivery port (5) along river course (1) downstream direction one side to hold back well (3).

2. The municipal rainwater interception device according to claim 1, wherein: the stepped structure on the upper part of the intercepting well (3) is divided into a first step (31), a second step (32) and a third step (33), the first step (31) and the second step (32) are respectively provided with two sealing parts (4) with the same size, and the third step (33) is provided with one sealing part (4).

3. A municipal rainwater interception device according to claim 1 or 2, wherein: the sealing component (4) is composed of a well cover (41) and a filter screen (45) which are movably connected and a well mouth (42) which is positioned below the well cover.

4. The municipal rainwater interception device according to claim 3, wherein: be provided with arch (43) on well head (42) edge, be provided with sealing washer (44) on arch (43), well lid (41) are the structure of indent upwards, the protruding (43) block of well lid (41) and well head (42) is connected.

5. The municipal rainwater interception device according to claim 1, wherein: a supporting block (24) is obliquely arranged on the inner wall of the sedimentation tank (2) along the direction of the water inlet; the supporting blocks (24) are used for supporting the grating (23).

6. The municipal rainwater interception device according to claim 5, wherein: and flexible fillers are arranged on the grating (23).

7. The municipal rainwater interception device according to claim 3, wherein: the well lid (41) is movably connected with a filter screen (45).

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