CN215926224U

CN215926224U - Control source sewage intercepting system under high water level operation working condition of pipe network

Info

Publication number: CN215926224U
Application number: CN202121892054.5U
Authority: CN
Inventors: 胡和平; 施晔; 肖许沐; 陈德业; 闫超
Original assignee: China Water Resources Pearl River Planning Surverying & Designing Co ltd
Current assignee: China Water Resources Pearl River Planning Surverying & Designing Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-03-01
Anticipated expiration: 2031-08-11

Abstract

The utility model relates to the technical field of municipal engineering, in particular to a source control sewage interception system under a pipe network high-water-level operation working condition, which comprises an intercepting well which is hollow inside and is internally provided with a partition wall, wherein the intercepting well is divided into an intercepting chamber and an overflow chamber by the partition wall, the side wall of the intercepting chamber is connected with a confluence pipe and an intercepting pipe, the elevation of the bottom of the intercepting pipe is lower than that of the bottom of the confluence pipe, and the side wall of the overflow chamber is connected with an overflow pipe; the lower end part of the partition wall is provided with an overflow hole, the interception chamber is communicated with the overflow chamber through the overflow hole, a water retaining gate is arranged at the overflow hole, and the water retaining gate is controlled to move up and down through a driving device so as to realize the opening and closing of the overflow hole; the intercepting well is externally provided with a rain gauge, the intercepting chamber and the overflow chamber are internally provided with liquid level meters, and the rain gauge, the liquid level meters and the driving device are all electrically connected with a control system.

Description

Control source sewage intercepting system under high water level operation working condition of pipe network

Technical Field

The utility model relates to the technical field of municipal engineering, in particular to a source control and sewage interception system under a high-water-level operation working condition of a pipe network.

Background

The drainage system is an important component of urban infrastructure construction, the perfection degree of the drainage system influences urban sewage treatment and pollution control and is influenced by the economic development level, and the urban drainage system in China mainly takes a combined drainage system as a main part. Due to the problems of unreasonable town construction, unmatched municipal infrastructure and the like accumulated in the urbanization process, the water environment in China tends to deteriorate year by year and becomes a restriction factor for the development of the economic society. In recent years, along with the emphasis of the country on ecological environment protection, governments at all levels vigorously renovate black and odorous water, but because of the time and heavy tasks, a tail-end intercepting type sewage intercepting method is generally adopted, and a sewage intercepting pipe network is laid along a river to intercept drought flow sewage and initial rainwater to a sewage system, so that river pollutants are reduced, and the water quality of the river is improved.

However, underground pipe networks have long construction time, unclear topological relation, unclear current status bottom and uneven quality, a large amount of surface water enters a sewage system, the sewage concentration is reduced, the sewage quantity is increased, the space of the sewage system is occupied, the sewage system generally operates at a high water level, and the river network area with a low terrain is particularly serious. The high water level operation of the sewage system not only prevents sewage from being discharged into the sewage system, but also causes a large amount of sewage to overflow and be discharged into a river channel, thereby causing serious pollution to the river channel. In the prior art, CN201810471263 discloses a backflow-preventing combined flow interception overflow discharge system integrating sewage interception, drainage, backflow prevention and fine metering, but: firstly, the high water level operation working condition of a sewage system is not considered, and sewage under the high water level working condition cannot be prevented from overflowing into surface water such as a river channel and the like, so that surface water pollution is caused; secondly, the conditions that coastal areas are affected by tides and the surface water level periodically rises and falls are not considered, and under the high water level working condition of the sewage system, the control system is mistakenly judged by the periodic rise and fall of the surface water level, so that a drainage program is started to drain sewage into surface water such as a river channel and the like through a drainage pump, and the surface water is polluted; and thirdly, although the working conditions of the dry weather and the rainy weather are considered, the influence of rainfall on the system is not analyzed in detail, and the influence of different sewage amounts of the dry weather and the rainy weather on the system is not analyzed in detail.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a source control sewage interception system under the high-water-level operation working condition of a pipe network, aiming at overcoming the defects of the prior art, preventing surface water from flowing backwards and sewage from overflowing, and improving the treatment effect of black and odorous water.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the source control sewage intercepting system under the high-water-level operation working condition of the pipe network comprises an intercepting well which is hollow inside and is internally provided with a partition wall, the intercepting well is divided into an intercepting chamber and an overflowing chamber by the partition wall, the side wall of the intercepting chamber is connected with a confluence pipe for introducing confluence rainwater and sewage into the intercepting chamber and an intercepting pipe for discharging the confluence rainwater and sewage in the intercepting chamber to a sewage treatment plant, the elevation of the bottom of the intercepting pipe is lower than that of the bottom of the confluence pipe, and the side wall of the overflowing chamber is connected with an overflow pipe communicated with surface water outside;

the lower end part of the partition wall is provided with an overflow hole, the interception chamber is communicated with the overflow chamber through the overflow hole, a water retaining gate is arranged at the overflow hole, and the water retaining gate is controlled to move up and down through a driving device so as to realize the opening and closing of the overflow hole;

the intercepting well is externally provided with a rain gauge, the intercepting chamber and the overflow chamber are internally provided with liquid level meters, and the rain gauge, the liquid level meters and the driving device are all electrically connected with a control system.

In the technical scheme, the bottom of the intercepting chamber is provided with the intercepting groove, the intercepting pipe is sequentially connected with the intercepting groove and penetrates out of the side wall of the intercepting chamber, and the intercepting groove is arranged so that the confluent rain sewage entering the intercepting chamber through the confluent pipe can be preferentially gathered in the intercepting groove and is discharged through the intercepting pipe.

In the technical scheme, the elevation of the tube bottom of the intercepting tube is the same as the elevation of the groove bottom of the intercepting groove, and the elevation of the tube bottom of the intercepting tube is lower than that of the tube bottom of the confluence tube.

In the technical scheme, the tube bottom elevation of the overflow tube and the hole bottom elevation of the overflow hole are not higher than the tube bottom elevation of the confluence tube.

In the above technical scheme, the cross-sectional area of the overflow hole is not less than the cross-sectional area of the confluence pipe.

In the above technical scheme, the driving device is a hydraulic hoist, an electric hoist or a hand-operated hoist.

In the above technical scheme, the liquid level meter is an ultrasonic liquid level meter or a drop-in type liquid level meter.

In the technical scheme, the intercepting chamber and the overflowing chamber are communicated with the ground through the well seat, and the well seat upper cover is provided with the well cover.

In the technical scheme, the inner side walls of the intercepting chamber and the overflow chamber are provided with the crawling ladder which is positioned below the well seat.

In the above technical scheme, the water retaining gate is located in the intercepting chamber, a containing groove is formed in the bottom of the intercepting chamber, and the water retaining gate can be placed in the containing groove.

The utility model has the beneficial effects that:

according to the source control sewage interception system under the high-water-level operation working condition of the pipe network, under the high-water-level operation working condition of the sewage system, due to the fact that the overflow hole, the water retaining gate, the rain gauge and the two liquidometers are arranged, the control system can correctly control the opening and closing of the overflow hole by the water retaining gate according to detection data of the rain gauge and the two liquidometers, confluent rain sewage under the high-water-level operation working condition of the sewage system can be prevented from being discharged into surface water through the overflow pipe to pollute the quality of the surface water, the surface water can be prevented from flowing backwards into the intercepting chamber in the periodic rising and falling process, and therefore the effects of forward preventing the surface water from flowing backwards and reversely preventing the confluent rain sewage from overflowing under the high-water-level operation working condition of the sewage system are achieved.

Drawings

The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model, and the same reference numbers are used throughout the drawings to identify the same elements.

FIG. 1 is a lengthwise cross-sectional view of a top view of a source-controlling pollutant intercepting system in an embodiment.

Fig. 2 is a cross-sectional view taken along line a-a of fig. 1.

Fig. 3 is a cross-sectional view taken along line B-B of fig. 1.

Fig. 4 is a cross-sectional view taken along line C-C of fig. 1.

Reference numerals:

the system comprises an intercepting well 1, a partition wall 2, an overflow hole 21, a water retaining gate 22, an intercepting chamber 3, a confluence pipe 31, an intercepting pipe 32, an intercepting groove 33, an overflow chamber 4, an overflow pipe 41, a driving device 5, a rain gauge 6, a confluence rain sewage level meter 71, a surface water level meter 72, a control system 8, a well seat 9, a well cover 10 and a ladder stand 11 accommodating groove 12.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

The utility model provides a accuse source cut-off system under high water level operating mode of pipe network of embodiment, as shown in fig. 1 and fig. 2, including inside cavity and inside vatch basin 1 that is equipped with partition wall 2, partition wall 2 divide into vatch basin 3 and overflow room 4 with vatch basin 1, overflow hole 21 has been seted up to the lower tip of partition wall 2, vatch basin 3 and overflow room 4 pass through overflow hole 21 intercommunication, one side that overflow hole 21 is located vatch basin 3 is provided with manger plate gate 22, manger plate gate 22 reciprocates in order to realize the switching of overflow hole 21 through drive arrangement 5 control.

Further, the water gate 22 is located in the intercepting chamber 3, and the receiving groove 12 is disposed at the bottom of the intercepting chamber 3, and the water gate 22 can be placed in the receiving groove 12.

As shown in fig. 2 and 3, a confluence pipe 31 for introducing the confluence rainwater and sewage into the intercepting chamber 3 and a shutoff pipe 32 for discharging the confluence rainwater and sewage in the intercepting chamber 3 to a sewage treatment plant are connected to the side wall of the intercepting chamber 3, a shutoff groove 33 is provided at the bottom of the intercepting chamber 3, the shutoff pipe 32 is connected to the shutoff groove 33 and penetrates out of the side wall of the intercepting chamber 3, and the shutoff groove 33 is provided to facilitate the confluence rainwater and sewage entering the intercepting chamber 3 through the confluence pipe 31 to be preferentially gathered in the shutoff groove 33, thereby facilitating the discharge of the confluence rainwater and sewage through the shutoff pipe 32. In order to better facilitate the discharge of the merged rain sewage, the height of the tube bottom of the intercepting tube 32 is the same as that of the groove bottom of the intercepting groove 33 in the embodiment, and the heights of the tube bottom are both lower than that of the merged tube 31.

In this embodiment, the cross-sectional area of the overflow hole 21 is not smaller than the cross-sectional area of the confluence pipe 31, so that when the confluence rainwater in the intercepting chamber 3 seriously exceeds the warning water level line in heavy rain, a part of the confluence rainwater can conveniently enter the overflow chamber 4 through the overflow hole 21, and then is discharged into the ground surface water such as rivers through the overflow pipe 41, thereby preventing waterlogging.

As shown in fig. 2 and 4, an overflow pipe 41 communicated with the outside of the ground is connected to the side wall of the overflow chamber 4, and in order to avoid waterlogging, the height of the bottom of the overflow pipe 41 and the height of the bottom of the overflow hole 21 are not higher than the height of the bottom of the confluence pipe 31.

In order to accurately control the opening and closing of the overflow hole 21, as shown in fig. 2, a rain gauge 6 for detecting rainfall data in real time is arranged outside the intercepting well 1, a confluence rain sewage level gauge 71 for detecting the water level height of confluence rain sewage in real time is arranged inside the intercepting chamber 3, a surface water level gauge 72 for detecting the water level height of surface water in real time is arranged inside the overflow chamber 4, and the rain gauge 6, the confluence rain sewage level gauge 71, the surface water level gauge 72 and the driving device 5 are all electrically connected with the control system 8. In this embodiment, the driving device 5 may be selected as a hydraulic hoist, an electric hoist, a hand hoist, or any other driving device 5 capable of realizing this function, and the combined rain sewage level meter 71 and the surface water level meter 72 may be selected as an ultrasonic level meter, a drop-in level meter, or any other level meter capable of realizing this function.

In order to facilitate the overhaul and management of the intercepting well 1, as shown in fig. 2, the intercepting chamber 3 and the overflow chamber 4 are communicated with the ground through a well seat 9, the inner side walls of the intercepting chamber 3 and the overflow chamber 4 are respectively provided with a ladder stand 11, and the ladder stands 11 are positioned below the well seat 9, so that overhaul and management of the intercepting well 1 by maintainers are facilitated. The well seat 9 upper cover is equipped with well lid 10, does not carry out maintenance work time with well lid 10 lid on well seat 9 to avoid taking place personnel danger of falling. In this embodiment, the crawling ladder 11 can be made of plastic steel or cast iron; the well cover 10 and the well seat 9 are made of nodular cast iron, the bearing capacity can be 15kN, 125kN, 250kN, 400kN, 600kN and 900kN, and the bearing capacity is selected according to the requirements of specific applicable places.

The working principle of the source control sewage interception system under the high-water-level operation working condition of the pipe network is as follows:

in dry weather, the rain gauge 6 detects data of 0, and domestic sewage, industrial wastewater and the like enter the intercepting chamber 3 through the confluence pipe 31 and are discharged to a sewage treatment plant through the intercepting pipe 32. The combined rain sewage level meter 71 detects that the water level in the intercepting chamber 3 is H1, the surface water level meter 72 detects that the water level on the ground is H2, and as the water level is dry, H1 generally does not exceed the water level warning line, when H1 is not more than H2, the control system 8 controls the driving device 5 to start, so as to control the water retaining gate 22 to move up and down to a proper position to seal the overflow hole 21, thereby preventing surface water from flowing backwards into the intercepting chamber 3 through the overflow chamber 4; when H1 is more than H2, the control system 8 also controls the driving device 5 to be started, so as to control the water retaining gate 22 to move up and down to a proper position to close the overflow hole 21, thereby preventing the sewage in the intercepting chamber 3 from entering the overflow chamber 4 through the overflow hole 21 and then being discharged into the surface water to cause surface water pollution. When H1 exceeds the water level warning line, it indicates that the sewage system is in an extreme abnormal working condition, the system enters an emergency mode, the control system 8 controls the alarm system to start, and the sewage system management department and the administrative department manually determine the closing or opening of the overflow hole 21 according to specific conditions.

In rainy days, the detection data of the rain gauge 6 is more than 0, the combined rain sewage enters the intercepting chamber 3 through the combined flow pipe 31, when H1 is less than or equal to H2, the control system 8 controls the driving device 5 to be started, so that the water retaining gate 22 is controlled to move up and down to a proper position to seal the overflow hole 21, the combined rain sewage is completely discharged to a sewage treatment plant through the intercepting pipe 32, and meanwhile, surface water is prevented from flowing backwards into the intercepting chamber 3 through the overflow chamber 4; when H1 is more than H2 but H1 does not reach the water level warning line, the control system 8 controls the driving device 5 to start, so that the water retaining gate 22 is controlled to move up and down to a proper position to seal the overflow hole 21, the combined rain sewage is completely discharged to a sewage treatment plant through the intercepting pipe 32, and meanwhile, the combined rain sewage in the intercepting chamber 3 is prevented from entering the overflow chamber 4 through the overflow hole 21 and then being discharged into surface water to cause surface water pollution; when H1 is more than H2 and H1 exceeds the water level warning line, the rainfall is large, most of the combined rain sewage is rainwater, the pollution is small, the control system 8 also controls the driving device 5 to start, so that the water blocking gate 22 is controlled to move up and down to a proper position to open the overflow hole 21, a part of the combined rain sewage is discharged to a sewage treatment plant through the shutoff pipe 3, and the combined rain sewage exceeding the warning line part is discharged into ground surface water such as rivers through the overflow hole 21 and the overflow pipe 41, so that waterlogging is prevented. And the opening degree of the overflow hole 21 when H1 is greater than H2 and H1 exceeds the water level alarm line is determined by the control system 8 according to the rainfall, the height of H1 exceeding the alarm line and the heights of H1 and H2.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a accuse source under pipe network high water level operating mode cuts dirty system, includes that inside cavity and inside are equipped with the vatch basin of partition wall, the partition wall will the vatch basin divide into cutoff chamber and overflow chamber, its characterized in that:

the side wall of the intercepting chamber is connected with a confluence pipe for introducing confluence rainwater and sewage into the intercepting chamber and an intercepting pipe for discharging the confluence rainwater and sewage in the intercepting chamber to a sewage treatment plant, the pipe bottom elevation of the intercepting pipe is lower than that of the confluence pipe, and the side wall of the overflowing chamber is connected with an overflow pipe for communicating surface water outside;

2. The source control sewage interception system under the high-water-level operation working condition of the pipe network according to claim 1, which is characterized in that: the bottom of the intercepting chamber is provided with an intercepting groove, and the intercepting pipe is connected with the intercepting groove in a sequential manner and penetrates out of the side wall of the intercepting chamber.

3. The source control sewage interception system under the high-water-level operation working condition of the pipe network according to claim 2, which is characterized in that: the elevation of the tube bottom of the intercepting tube is the same as that of the groove bottom of the intercepting groove, and the elevation of the tube bottom of the intercepting tube is lower than that of the tube bottom of the confluence tube.

4. The source control sewage interception system under the high-water-level operation working condition of the pipe network according to claim 1, which is characterized in that: and the pipe bottom elevation of the overflow pipe and the hole bottom elevation of the overflow hole are not higher than the pipe bottom elevation of the confluence pipe.

5. The source control sewage interception system of the pipe network under the high-water-level operation working condition according to claim 1 or 4, wherein: the cross-sectional area of the overflow hole is not smaller than that of the confluence pipe.

6. The source control sewage interception system under the high-water-level operation working condition of the pipe network according to claim 1, which is characterized in that: the driving device is a hydraulic hoist, an electric hoist or a hand-operated hoist.

7. The source control sewage interception system under the high-water-level operation working condition of the pipe network according to claim 1, which is characterized in that: the liquid level meter is an ultrasonic liquid level meter or a drop-in type liquid level meter.

8. The source control sewage interception system under the high-water-level operation working condition of the pipe network according to claim 1, which is characterized in that: the intercepting chamber and the overflow chamber are communicated with the ground through a well seat, and a well cover is arranged on the well seat in a covering mode.

9. The source control sewage interception system under the high-water-level operation working condition of the pipe network according to claim 8, which is characterized in that: the inner side walls of the intercepting chamber and the overflow chamber are provided with crawling ladders which are positioned below the well seat.

10. The source control sewage interception system under the high-water-level operation working condition of the pipe network according to claim 1, which is characterized in that: the water retaining gate is located in the intercepting chamber, a containing groove is formed in the bottom of the intercepting chamber, and the water retaining gate can be placed in the containing groove.