CN221095374U - Rain and sewage converging tail end treatment structure - Google Patents

Abstract

The utility model provides a rain and sewage converging tail end treatment structure, which belongs to the technical field of sewage treatment and comprises a water collecting pit, a sewage pipe arranged at one side of the bottom of the water collecting pit, a filtering structure for filtering sewage entering the water collecting pit to prevent impurities from blocking the sewage pipe, and a rain and sewage inlet pipe and a drain pipe which are respectively arranged at two sides of the water collecting pit; the filter structure is horizontally arranged in the water collecting pit, and the bottoms of the rainwater and sewage inlet pipe and the drain pipe are flush with the upper surface of the filter structure; the utility model has low reconstruction cost and small reconstruction difficulty, and compared with the reconstruction of the full-line rain sewage flow pipe, the utility model only needs to insert a section of treatment facility at the tail end, thereby greatly reducing the reconstruction difficulty and cost.

Description

Rain and sewage converging tail end treatment structure

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a rain and sewage converging tail end treatment structure.

Background

The domestic drainage system for residents in a large number of old urban areas and rural areas does not carry out rain and sewage diversion, rain and sewage share one drainage pipe to be discharged into natural water systems such as river channels, lakes and the like, and large pollution is caused to natural water bodies and soil.

The patent number 202022844129.4 discloses a rain and sewage diversion intercepting well which can realize automatic control through buoyancy, the patent realizes the automatic control through buoyancy, the water level in the intercepting well is lower in the initial stage of rainwater, and a lifting baffle covers a discharge pipe. After the initial rainwater is collected into the intercepting well, the initial rainwater and sewage in the sewage intercepting pipe enter a sewage treatment plant; along with the gradual increase of the water quantity collected in the intercepting well, when the water level in the intercepting well rises to a height exceeding the height where the hollow floating ball is located, the hollow floating ball is driven to float upwards due to the buoyancy of water, so that the lifting baffle moves upwards, the lifting baffle is opened, and a large amount of water in the intercepting well is discharged outwards through the discharge pipe.

But the daily main function of rain and sewage reposition of redundant personnel vatch basin is to collect sewage to carry to sewage factory through the interception pipe and handle, this just leads to rain and sewage reposition of redundant personnel vatch basin bottom to deposit mud, and the rainwater initial stage, the rainfall is relatively less, can only wash away a very small part mud. Along with the increase of rainfall, the hollow floating ball drives the lifting baffle to open, although the middle-term rainwater is cleaner, the middle-term rainwater is influenced by bottom sludge, clean rainwater is polluted, and discharged rainwater still can pollute natural water.

Disclosure of Invention

The utility model provides a rainwater and sewage converging tail end treatment structure, wherein a water collecting pit is arranged at the tail end of a pipeline, sewage with small daily water quantity and initial rainwater are discharged into a sewage pipe network, when the rainfall is large, the rainwater is discharged into the rainwater pipe network, the whole section of drainage system is not required to be modified, the occupied area is small, the construction time is short, and the rainwater treatment structure is convenient and fast to use.

In order to solve the problems, the rain and sewage converging tail end treatment structure provided by the utility model adopts the following technical scheme: the sewage treatment device comprises a water collecting pit, a sewage pipe arranged at one side of the bottom of the water collecting pit, a filtering structure for filtering sewage entering the water collecting pit to prevent sundries from blocking the sewage pipe, and a rain sewage inlet pipe and a drain pipe which are respectively arranged at two sides of the water collecting pit; the filter structure is horizontally arranged in the water collecting pit, and the bottoms of the rainwater and sewage inlet pipe and the drain pipe are flush with the upper surface of the filter structure;

The filter structure is also provided with a blade structure for controlling the opening and closing of the filter structure, the blade structure is provided with an opening position and a closing position, and the blades of the blade structure at the opening position are opened, so that sewage enters the bottom of the water collection pit after being filtered by the filter structure; the blades of the blade structure at the closed position are closed to separate sewage below the filtering structure, so that the pollution to rainwater is avoided and the rainwater is discharged through the drain pipe.

As a further improvement, the filter structure is a steel grating.

As a further improvement, the blade structure is an elastic movable shutter which is uniformly distributed on the filtering structure.

As a further improvement, the elastic movable shutter comprises a movable shutter and an elastic steel sheet, the movable shutter is connected to the upper surface of the steel grating through the elastic steel sheet, the movable shutter inclines towards one side of the drain pipe, the movable shutter arranged in an inclined mode is used for allowing sewage to pass through in a normal state, and when the flow of rainwater reaches a set value, the movable shutter is attached to the steel grating by being impacted by the rainwater, so that the rainwater is discharged through the drain pipe.

As a further improvement, the sewage pipe is provided with an electromagnetic valve, a first liquid level sensor and a second liquid level sensor for controlling the electromagnetic valve to be opened and closed are arranged in the water collecting pit, the first liquid level sensor is arranged above the filtering structure, and the second liquid level sensor is arranged below the filtering structure.

As a further improvement, the bottom of the water collection pit is obliquely arranged, and one side of the sewage pipe is lower than the other side, so that sewage flows into the sewage pipe by gravity.

As a further improvement, the bottom of the water collection pit is also provided with a drainage foundation pit, and the drainage foundation pit is arranged on one side close to the sewage pipe, so that mud in the sewage flows into the drainage foundation pit to reduce mud on the bottom surface of the water collection pit, and the bottom surface of the sewage pipe is flush with the bottom surface of the drainage foundation pit.

As a further improvement, an overhaul crawling ladder is also arranged in the water collecting pit.

The technical scheme of the utility model has the following beneficial effects:

1. The modification cost is low, and the modification difficulty is small: compared with the transformation of the full-line rain sewage flow pipe, the utility model only needs to insert a section of treatment facility at the tail end, thereby greatly reducing the transformation difficulty and cost.

2. Treating the initial rainwater pollution: not only can the sewage be consumed, but also the initial rainwater with serious pollution can be discharged into a sewage pipe. When raining, rainwater and dust on the road surface enter the sewer pipe and wash the sewer pipe, so that the initial rainwater is seriously polluted, the initial rainwater quantity is relatively small, the impact force of the rainwater and the sewage is insufficient to close the movable shutters, and the aim of discharging the initial rainwater with serious pollution into the sewer pipe is fulfilled.

3. The degree of automation is high: the electromagnetic valve and the movable shutter are controlled by rainfall, and manual treatment is not needed. The electromagnetic valve is opened and closed by controlling the height of the liquid level in the water collecting pit, the elastic movable shutter is opened and closed by controlling the flow of rainwater, when the flow of the rainwater is increased, the impact force is also increased, and the elastic movable shutter is impacted by the rainwater to enable the elastic movable shutter to be attached to the steel grating, so that the elastic movable shutter is closed.

4. Improving the environment: the water outlet of the rain and sewage converging pipe is not directly discharged into natural water body in daily life, and has great improvement effect on water environment, atmospheric environment and the like.

5. The digestion capacity of a sewage treatment plant is reasonably used: if the rainwater and sewage combined water is discharged into a sewage pipe network, the pressure on a sewage treatment plant is greatly increased, after the utility model is adopted, the rainwater and sewage is reasonably split and reasonably treated, the initial rainwater is seriously polluted, the rainwater is discharged into a sewage pipe to be treated by the sewage treatment plant, the middle and later period rainwater is relatively clean, and the rainwater can be directly discharged into a natural water body or is simply treated and then is discharged into the natural water body.

6. The floor area is small, the facilities are flexibly arranged, and the facilities can be arranged at any position at the tail end of the rainwater and sewage converging pipe.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present utility model will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the utility model are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:

FIG. 1 is a schematic view of the structure of the rain and sewage converging end treatment structure of the present utility model.

Reference numerals illustrate:

1. Overhauling a cat ladder; 2. a rain sewage inlet pipe; 3. a steel grating; 4. a first liquid level sensor; 5. a second liquid level sensor; 6. an elastically movable shutter; 7. draining the foundation pit; 8. an electromagnetic valve; 9. a sewage pipe; 10. a drain pipe; 11. a water collecting pit; 12. a surface manhole.

Detailed Description

The following description of the embodiments of the present utility model will be made more complete and clear to those skilled in the art by reference to the figures of the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Various non-limiting embodiments of the utility model are described in detail below. Any number of elements in the figures are for illustration and not limitation, and any naming is used for distinction only and not for any limiting sense.

The principles and spirit of the present utility model are explained in detail below with reference to several representative embodiments thereof.

Example 1 of a rain and sewage converging end treatment structure provided by the utility model:

As shown in fig. 1, the rain sewage converging end treatment structure comprises a water collecting pit 11, a rain sewage inlet pipe 2, a filtering structure, a drain pipe 10 and a sewage pipe 9; the filtering structure is horizontally arranged in the water collecting pit 11, the side edge of the filtering structure is fixed on the side wall of the water collecting pit 11 through bolts, the filtering structure is convenient to detach and clean the bottom of the water collecting pit 11, the filtering structure is used for filtering sewage entering the water collecting pit 11 to prevent sundries from blocking the sewage pipe 9, the rain sewage inlet pipe 2 and the drain pipe 10 are respectively arranged on two sides of the water collecting pit 11, the bottom surfaces of the rain sewage inlet pipe 2 and the drain pipe 10 are level with the upper surface of the filtering structure, the pipe diameter of the rain sewage flow pipe is generally designed according to the maximum rainwater amount, the sewage pipe 9 is arranged at the bottom of the water collecting pit 11 and is used for discharging sewage filtered by the filtering structure and initial rainwater, and the pipe diameter of the sewage pipe 9 is designed according to the sewage amount and the treatment capacity of a sewage treatment plant;

In this embodiment, the filtering structure is the steel grating 3, and the steel grating 3 has the filtration pore of evenly arranging, and be difficult for deformation, can filter the impurity that the volume is great relatively, avoids impurity entering sewer pipe 9 and blocks up sewer pipe 9.

The steel grating 3 is provided with a blade structure for controlling the steel grating 3 to be opened and closed, the blade structure is provided with an opening position and a closing position, and the blades of the blade structure at the opening position are opened, so that sewage enters the bottom of the water collection pit 11 after being filtered by the steel grating 3; the blades of the blade structure in the closed position are closed to separate the sewage below the filtering structure, prevent the rainwater from being polluted and enable the rainwater to be discharged through the drain pipe 10. The sewer pipe can become relatively clean after initial stage rain wash, consequently later rainwater is also comparatively clean, but owing to the pit 11 bottom settlement has mud, can lead to the water below the steel grating 3 relatively dirty, through closed blade structure, can avoid the comparatively clean rainwater in sewage pollution top below the pit 11, makes the rainwater can directly flow in natural water.

In the embodiment, the blade structure is an elastic movable shutter 6, the elastic movable shutter 6 is uniformly distributed on the steel grating 3, the elastic movable shutter 6 comprises movable shutters and elastic steel sheets, the movable shutters and the elastic steel sheets are connected through welding, the movable shutters are connected to the upper surface of the steel grating 3 through the elastic steel sheets, the movable shutters incline towards one side of the drain pipe 10, and the inclined movable shutters are used for allowing sewage to pass through in a normal state; because the movable shutter is installed on the steel grating 3 through the elastic steel sheet, when external force is applied, the elastic steel sheet can deform, so that the inclination angle of the movable shutter is changed, when the rainwater flow reaches a set value, the movable shutter is impacted and attached to the steel grating 3 by the rainwater, and the movable shutter is closed, so that the rainwater is discharged through the drain pipe 10.

The solenoid valve 8 is installed to sewer pipe 9, is fixed with first level sensor 4 and the second level sensor 5 that are used for controlling solenoid valve 8 to open and close on the pit wall of sump 11, and first level sensor 4 sets up in filtration's top, and second level sensor 5 sets up in filtration's below. When the rainfall is increased, the inflow water is mainly clean rainwater, the inflow water exceeds the drainage capacity of the sewage pipe 9, the water level in the water collecting pit 11 rises at the moment, the water level exceeds the second liquid level sensor 5, the electromagnetic valve 8 is closed, the rainwater does not enter the sewage pipe 9 any more, and the treatment pressure on a sewage treatment plant is reduced; when the rainfall stops, the water level drops, and when the water level is lower than the first liquid level sensor 4, the electromagnetic valve 8 is opened, and the mode that the daily sewage enters the sewage pipe 9 is restored.

In this embodiment the bottom of the sump 11 is arranged inclined, with the sewage pipe 9 being located on one side lower than the other side, so that sewage flows into the sewage pipe 9 by gravity.

The bottom of the water pit 11 is also provided with a drainage foundation pit 7, and the drainage foundation pit 7 is arranged on one side close to the sewage pipe 9, so that mud in sewage flows into the drainage foundation pit 7 to reduce mud on the bottom surface of the water pit 11, and the bottom surface of the sewage pipe 9 is flush with the bottom surface of the drainage foundation pit 7. The arrangement is beneficial to concentrating mud in the drainage foundation pit 7, and cleaning of the bottom of the water collecting pit 11 is convenient.

The overhaul crawling ladder 1 is arranged in the water pit 11, and the overhaul crawling ladder is positioned below the wellhead of the ladder ground inspection well 12, so that workers can conveniently enter the water pit 11 to clean.

The working principle of the utility model is as follows:

After the utility model is adopted, daily sewage enters a municipal sewage treatment plant for treatment through the sewage pipe 9. During rainfall, the rainwater and sewage converging pipe is flushed by utilizing initial rainwater, at the moment, the rainwater quantity is relatively small, the impact force is relatively small, the elastic movable shutter 6 is in an open state, and the rainwater with high pollution degree after flushing can enter the sewage pipe 9.

When the rainfall is further increased, the water inlet is mainly composed of clean rainwater, the water level in the pit can rise at the moment along with the water inlet exceeding the drainage capacity of the sewage pipe 9, when the water level exceeds the second liquid level sensor 5, the electromagnetic valve 8 is automatically closed, the rainwater does not enter the sewage pipe 9 any more, and the treatment pressure of a sewage treatment plant is reduced. Meanwhile, as the rainwater quantity is larger than the sewage quantity, the flow speed is higher, the elastic movable shutter 6 is closed under the flushing of water flow, and the sewage at the lower part of the steel grating 3 and the clean rainwater at the upper part of the steel grating 3 are further isolated, so that the clean rainwater is discharged from the drain pipe 10. When the rainfall stops, the water level drops, and when the water level is lower than the first liquid level sensor 4, the electromagnetic valve 8 is opened, at the moment, the elastic movable shutter 6 is no longer impacted by the rainwater, the elastic movable shutter 6 is restored to an inclined state, the elastic movable shutter 6 is opened, and the mode that daily sewage enters the sewage pipe 9 is restored.

In example 2, the rain and sewage flow end treatment structure in this example is substantially the same as that in example 1, except that: in this embodiment, the blade structure includes a plurality of movable blades and welds the connecting axle in the movable blade both sides, and movable blade passes through the connecting axle and rotates the assembly on the steel grating, and the epaxial still cover of connecting is equipped with the torsional spring, when not receiving external force, the movable blade inclines towards one side of drain pipe, when receiving outside rainwater impact, the movable blade laminating keeps apart about realizing the steel grating on the steel grating, and when the water yield reduced, receives the elasticity effect of torsional spring, and movable blade resumes the inclination.

Example 3, the rain and sewage flow end treatment structure provided in this example is substantially the same as that of example 1, except that: in this embodiment, the blade structure adopts electronic tripe structure, opens and close through electronic mode drive tripe, and when the liquid level exceeded second level sensor, electronic tripe structure closed, separates the upper and lower floor of steel grating.

While various embodiments of the present utility model have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Many modifications, changes, and substitutions will now occur to those skilled in the art without departing from the spirit and scope of the utility model. It should be understood that various alternatives to the embodiments of the utility model described herein may be employed in practicing the utility model. The appended claims are intended to define the scope of the utility model and are therefore to cover all module forms, equivalents, or alternatives falling within the scope of the claims.

Claims (8)

1. The rain and sewage converging tail end treatment structure is characterized by comprising a water collecting pit (11), a sewage pipe (9) arranged at one side of the bottom of the water collecting pit (11), a filtering structure for filtering sewage entering the water collecting pit (11) to prevent impurities from blocking the sewage pipe (9), and a rain and sewage water inlet pipe (2) and a water outlet pipe (10) respectively arranged at two sides of the water collecting pit (11); the filtering structure is horizontally arranged in the water collecting pit (11), and the bottoms of the rainwater and sewage inlet pipe (2) and the drain pipe (10) are flush with the upper surface of the filtering structure;

wherein, the filtering structure is also provided with a blade structure for controlling the opening and closing of the filtering structure.

2. The rain and sewage converging end treatment structure according to claim 1, wherein: the filtering structure is a steel grating (3).

3. The rain and sewage converging end treatment structure according to claim 1, wherein: the blade structure is an elastic movable shutter (6), and the elastic movable shutter (6) is uniformly distributed on the filtering structure.

4. A rain and sewage converging end treatment structure according to claim 3, wherein: the elastic movable shutter (6) comprises a movable shutter and an elastic steel sheet, the movable shutter is connected to the upper surface of the steel grating (3) through the elastic steel sheet, and the movable shutter inclines towards one side of the drain pipe (10).

5. A rain and sewage converging end treatment structure according to claim 3, wherein: install solenoid valve (8) on sewer pipe (9), be equipped with first liquid level sensor (4) and second liquid level sensor (5) that are used for controlling solenoid valve (8) to open and close in sump (11), first liquid level sensor (4) set up in filtration's top, second liquid level sensor (5) set up in filtration's below.

6. The rain and sewage converging end treatment structure according to claim 1, wherein: the bottom of the water collecting pit (11) is obliquely arranged, and one side of the sewage pipe (9) is lower than the other side.

7. The rain and sewage converging end treatment structure according to claim 6, wherein: the bottom of the water collecting pit (11) is also provided with a drainage foundation pit (7), the drainage foundation pit (7) is arranged on one side close to the sewage pipe (9), and the bottom surface of the sewage pipe (9) is flush with the bottom surface of the drainage foundation pit (7).

8. The rain and sewage flow end treatment structure according to any one of claims 1 to 7, wherein: an overhaul crawling ladder (1) is further arranged in the water collecting pit (11).