CN218204787U

CN218204787U - Lifting type intercepting well

Info

Publication number: CN218204787U
Application number: CN202222403380.6U
Authority: CN
Inventors: 谢伟; 王乾; 韩君
Original assignee: Three Gorges Technology Co ltd
Current assignee: Three Gorges Technology Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-01-03
Anticipated expiration: 2032-09-09

Abstract

The utility model provides a promotion formula vatch basin, includes the rainwater inspection shaft, rainwater inspection shaft intercommunication has downspout and blow off pipe, its characterized in that: the rainwater inspection well comprises an intercepting well chamber and a sewage well, wherein a rainwater inspection well sewage discharge pipe is communicated with the intercepting well chamber through an intercepting pipe, and the intercepting well chamber is adjacent to the sewage well and is communicated with the sewage well through an intercepting opening formed in the lower part of the intercepting well chamber; a pipeline hole is formed in the upper portion of the side wall of the sewage well, a submersible sewage pump is arranged at the bottom of the sewage well, one end of a sewage discharge pipe is communicated with the submersible sewage pump, and the other end of the sewage discharge pipe penetrates through the pipeline hole to be communicated with a downstream well chamber; the height of the center of the rainwater pipe is higher than that of the intercepting pipe; the closure opening is provided with a trash rack; the submersible sewage pump is controlled by a control cabinet, and the control cabinet is arranged on the ground; and a liquid level sensor is also arranged in the sewage well and is electrically connected with the control cabinet.

Description

Lifting type intercepting well

Technical Field

The utility model relates to a hydraulic engineering field especially relates to a promotion formula vatch basin.

Background

The urban construction achievement of China is obvious, underground drainage is the key point in urban construction, a reasonable drainage system is selected, and the urban drainage system is an important problem in urban drainage system planning.

The rain and sewage diversion is a drainage system commonly used in newly-built urban areas, and refers to a drainage mode of separating rain water and sewage, respectively conveying the rain water and the sewage by using a pipeline, and then discharging or treating the rain water and the sewage. Rainwater utilizes rainwater pipeline direct discharge to the river course, and sewage utilizes sewage conduit to carry sewage treatment plant to handle, avoids sewage to get into the river course and causes the pollution. However, the combined flow system is often adopted for underground drainage of many old cities, and for the old cities, the combined flow system is difficult to completely transform into the full rain and sewage flow system in a short time, so that the cut-off type combined flow system is mostly considered for the old cities in the current source control and sewage cut engineering practice in the water environment treatment.

In old urban area, domestic sewage and overflow river water generally send to gravity type vatch basin in through the pipeline after converging to carry out to damming and subside back rethread blowdown pipe discharge to the sewage plant and handle or spill over and get back to the river course, but gravity type vatch basin can gather a large amount of rubbish and bed mud after long-term the use and lead to the vatch basin functional failure, bring various problems after the inefficacy, mainly have: in the sump pit was irritated to a large amount of rainwater sewage during rain, lead to rubbish and bed mud to gather, the liquid level rises in the well, when flow was gradually low after rain, rubbish and bed mud that gather for a long time in a large amount are under the pressure of high liquid level, and mud and sewage will flow backward back into the river course in, seriously influence city river course view, if long-term heavy rain weather, then can lead to the mud siltation and sewage to spill over along with mud from the well lid. In particular, in river network areas such as the middle and lower reaches of Yangtze river, even in fine days, sewage pipe networks are often kept in high-water-level operation due to leakage and other reasons. In sunny days, once the liquid level of the gravity type intercepting well is higher than the water level of the confluence pipe, the gravity type intercepting well can be poured into a river, the liquid level of a nearby sewer network is in a high water level operation state, sewage in the confluence pipe cannot be discharged into the sewer network, the gravity type intercepting well in the interception type confluence system fails, after the gravity type intercepting well fails, the risks of sewage seepage and overflow are greatly increased, and the pollution condition of open water and underground water becomes more serious. The traffic capacity of the pipe network is reduced, and the maintenance workload, the maintenance cost and the potential operation risk are increased.

Therefore, the long-time sludge deposition in the pipe network and the failure of timely discharge lead to long-time high water level operation in the well, which is the main reason for the problems of high sewage overflow rate, direct sewage discharge, difficult pipeline maintenance, non-smooth drainage, underground water pollution and the like in the prior black and odorous water body treatment. Therefore, how to monitor the water level and discharge the sludge in time is a necessary link to be considered in designing the intercepting well. And old urban areas usually can not be transformed in a large area, and can only be improved on the basis of the existing facilities, so that how to improve the problems on the basis of comprehensively considering the transformation difficulty of the old urban areas is a difficult problem which is urgently needed to be solved in the current urban construction.

Disclosure of Invention

In order to solve the above problems, the utility model provides a following scheme:

the utility model provides a promotion formula vatch basin, includes the rainwater inspection shaft, rainwater inspection shaft intercommunication has downspout and drain, its characterized in that: the rainwater inspection well comprises an intercepting well chamber and a sewage well, wherein a sewage discharge port of the rainwater inspection well is communicated with the intercepting well chamber through an intercepting pipe, and the intercepting well chamber is adjacent to the sewage well and is communicated with the sewage well through an intercepting port formed in the lower part of the intercepting well chamber; a pipeline hole is formed in the upper portion of the side wall of the sewage well, a submersible sewage pump is arranged at the bottom of the sewage well, one end of a sewage discharge pipe is communicated with the submersible sewage pump, and the other end of the sewage discharge pipe penetrates through the pipeline hole to be communicated with a downstream well chamber; the height of the center of the rainwater pipe is higher than that of the intercepting pipe; the closure opening is provided with a trash rack; the submersible sewage pump is controlled by a control cabinet, and the control cabinet is arranged on the ground; and a liquid level sensor is also arranged in the sewage well and is electrically connected with the control cabinet.

Further, the height of the center of the rainwater pipe is 0.5m higher than that of the intercepting pipe.

Furthermore, the thickness of the bars of the trash rack is 10mm, the intervals of the bars are 30mm, the installation angle is 90 degrees, and the length and the width of the trash rack are 400 multiplied by 400mm.

Further, the diameter of the upper part of the rainwater inspection well is smaller than that of the lower part of the rainwater inspection well.

Further, a ladder stand is arranged on the inner side wall of the rainwater inspection well.

Further, the bottom of the submersible sewage pump is fixed with the bottom surface of the sewage well through expansion bolts.

Further, the blow-off pipe is a pressure pipeline, a rigid waterproof sleeve is arranged in the pipeline hole, and the rigid waterproof sleeve is sleeved outside the blow-off pipe to fix the blow-off pipe.

Further, the diameter of the sewage discharge pipe is DN1000.

Further, level sensor is radar level sensor, and sets up in the interior control liquid level top 200mm department of sewage well. The control liquid level is the highest liquid level limited in the sewage well.

The utility model has the advantages that the liquid level control is adopted, when the liquid level in the well is lower, the submersible sewage pump is not required to be started, the liquid level in the sewage well rises along with the continuous increase of the sewage amount, when the liquid level is controlled, the liquid level sensor transmits a liquid level signal to the control cabinet, the control cabinet starts the submersible sewage pump, the sewage in the submersible sewage pump is pumped to the nearest downstream monitoring sewage inspection well, and the purpose of accurate interception is achieved; the rainwater inspection well is the original gravity type intercepting well, an intercepting pipe is arranged on the original gravity type intercepting well bypass and is connected with the intercepting well chamber and the sewage well, the adaptability is stronger, and the cost can be effectively controlled. Be provided with the vatch basin room between bilge well and rainwater inspection shaft, avoid rivers directly to dash stealthily dirty pump to for the large granule deposit provides subside space and time, improve the trash rack's of trash rack trash holding efficiency, it leads to stealthily dirty pump trouble to have the large granule deposit in the mud of avoiding getting into the bilge well, effectively prolongs stealthily dirty pump work efficiency and working life. Sludge is discharged in time through the submersible sewage pump, so that the problem that the sewage flows backwards or overflows finally due to the fact that the operating water level is high and does not fall down caused by long-term sludge deposition in the drainage system of the old urban area is effectively solved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

1. A rainwater inspection well; 2. climbing a ladder; 3. a rainwater pipe; 4. a shutoff pipe; 5. a trash rack; 6. a shut-off well chamber; 7. a submersible sewage pump; 8. an expansion bolt; 9. a rigid waterproof sleeve; 10. a blow-off pipe; 11. a control cabinet; 12. a liquid level sensor; 13. a bilge well; 14. a flow stopping port.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. In the following description, certain specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the invention will be capable of embodiments in which the present invention is not limited to the details and instrumentalities shown, and the embodiments described herein will be capable of modifications within the spirit and scope of the invention as defined by the appended claims. Furthermore, it should be noted that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the scope of the actual protection. All the raw materials used in the following examples are commercially available products.

Example 1: referring to fig. 1, a lift type intercepting well comprises a rainwater inspection well 1, an intercepting well chamber 6 and a sewage well 13; the rainwater inspection well 1 is an original gravity type intercepting well in an old urban area, the rainwater inspection well 1 is communicated with a rainwater pipe 3 and a sewage discharge port, the sewage discharge port of the rainwater inspection well 1 is communicated with an intercepting well chamber 6 through an intercepting pipe 4, the intercepting well chamber 6 is adjacent to a sewage well 13 and is communicated through an intercepting port 14, and the center of the rainwater pipe 3 is higher than the intercepting pipe 4; a pipeline hole is formed in the upper portion of the side wall of the sewage well 13, a submersible sewage pump 7 is arranged at the bottom of the sewage well 13, one end of a sewage discharge pipe 10 is communicated with the submersible sewage pump 7, and the other end of the sewage discharge pipe penetrates through the pipeline hole to be communicated with a downstream well chamber; the interception opening 14 is provided with a trash rack 5; the submersible sewage pump 7 is controlled by a control cabinet 11, and the control cabinet 11 is arranged on the ground; and a liquid level sensor 12 is also arranged in the sewage well 13, and the liquid level sensor 12 is electrically connected with the control cabinet 11. The liquid level sensor 12 is a radar liquid level sensor and is arranged 200mm above the highest liquid level in the sewage well 13, and the highest liquid level is the control liquid level.

The height of the center of the rainwater pipe 3 is 0.5m higher than that of the shutoff pipe. The thickness of the bars of the trash rack 5 is 10mm, the intervals of the bars are 30mm, the installation angle is 90 degrees, and the length and the width of the trash rack 5 are 400 multiplied by 400mm.

The diameter of the upper part of the rainwater inspection well 1 is smaller than that of the lower part. A ladder stand 2 is arranged on the inner side wall of the rainwater inspection well 1.

The bottom of the submersible sewage pump 7 is fixed with the bottom surface of the sewage well 13 through an expansion bolt 8. The sewage pipe 10 is a pressure pipeline, a rigid waterproof sleeve 9 is arranged in the pipeline hole, and the rigid waterproof sleeve 9 is arranged outside the sewage pipe 10 to fix the sewage pipe 10. The diameter of the sewage discharge pipe 10 is DN1000.

The sewage after river overflow, domestic sewage and rainwater confluence enters a rainwater inspection well 1 through a rainwater pipe 3, the sewage entering the rainwater inspection well 1 enters a intercepting well chamber 6 through an intercepting pipe 4 and then enters a sewage well 13 through an intercepting port 14, when the sewage passes through the intercepting port 14, large-particle wastes in water are intercepted through a sewage blocking grating 5, so that suspended impurities in the sewage entering the sewage well 13 meet the extraction requirement of a submersible sewage pump 7, when the sewage in the sewage well 13 is higher than the maximum height set by a liquid level sensor 12 (the maximum liquid level height is generally 500mm lower than the elevation of the sewage well), the liquid level sensor 12 sends a signal to a control cabinet 11, the control cabinet 11 starts the submersible sewage pump 7, the submersible sewage pump 7 extracts the sewage and sludge and discharges the sewage and the sludge into a downstream well chamber through a sewage discharge pipe 10, when the liquid level of the sewage is lower than the maximum liquid level set by the liquid level sensor 12, the liquid level sensor 12 sends a signal to the control cabinet 11, and the control cabinet 11 closes the submersible sewage pump 7. The intercepting well chamber 6 plays a buffering role in flowing sewage, the flowing of the sewage in the intercepting well chamber 6 is slowed down and is subjected to primary sedimentation, after the sewage is subjected to primary sedimentation in the intercepting well chamber 6, partial sludge and most large-particle sediments sink, when the sewage passes through the sewage blocking grating 5, the large-particle sediments are intercepted in the intercepting well chamber 6, the sludge and the sediments with smaller particles pass through the sewage blocking grating 5 to be deposited in the sewage well 13, the sewage is conveniently extracted by the submersible sewage pump 7, and the service life of the submersible sewage pump is effectively prolonged.

The utility model adopts the liquid level control, when the liquid level in the well is lower, the submersible sewage pump 7 does not need to be opened, along with the continuous increase of the sewage amount, the liquid level in the sewage well 13 rises, when the liquid level is controlled, the liquid level sensor 12 transmits a liquid level signal to the control cabinet 11, the control cabinet 11 opens the submersible sewage pump 7, the sewage in the sewage well is pumped to the nearest downstream monitoring sewage inspection well, along with the entering of the sewage, the submersible sewage pump 7 also lifts and discharges the sewage and the sludge together, so that the water level in the intercepting well is always below the set highest liquid level, and the purpose of accurate intercepting is achieved; besides, an intercepting well chamber and a sewage well are arranged on the existing gravity type intercepting well, a lifting type intercepting well is formed, the adaptability to old urban drainage system reconstruction is stronger, and the reconstruction cost is lower.

The technical solutions provided by the embodiments of the present invention are introduced in detail, and the principles and embodiments of the present invention are explained by using specific examples, and the explanations of the above embodiments are only applicable to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the detailed implementation and application range, and in summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a promotion formula vatch basin, includes the rainwater inspection shaft, rainwater inspection shaft intercommunication has downspout and drain, its characterized in that: the rainwater inspection well comprises an intercepting well chamber and a sewage well, wherein a drain outlet of the rainwater inspection well is communicated with the intercepting well chamber through an intercepting pipe, and the intercepting well chamber is adjacent to the sewage well and is communicated with the sewage well through an intercepting opening formed in the lower part of the intercepting well chamber; a pipeline hole is formed in the upper portion of the side wall of the sewage well, a submersible sewage pump is arranged at the bottom of the sewage well, one end of a sewage discharge pipe is communicated with the submersible sewage pump, and the other end of the sewage discharge pipe penetrates through the pipeline hole to be communicated with a downstream well chamber; the height of the center of the rainwater pipe is higher than that of the intercepting pipe; the closure opening is provided with a trash rack; the submersible sewage pump is controlled by a control cabinet, and the control cabinet is arranged on the ground; and a liquid level sensor is also arranged in the sewage well and is electrically connected with the control cabinet.

2. A lift-type intercepting well as defined in claim 1, wherein: the height of the center of the rainwater pipe is 0.5m higher than that of the intercepting pipe.

3. A lift-type intercepting well as defined in claim 2, wherein: the thickness of the bars of the trash rack is 10mm, the intervals of the bars are 30mm, the installation angle is 90 degrees, and the length and the width of the trash rack are 400 multiplied by 400mm.

4. A lift-type intercepting well as defined in claim 1, wherein: the diameter of the upper part of the rainwater inspection well is smaller than that of the lower part of the rainwater inspection well.

5. A lift-type intercepting well as defined in claim 4, wherein: the inner side wall of the rainwater inspection well is provided with a ladder stand.

6. A lift-type intercepting well as defined in claim 1, wherein: the bottom of the submersible sewage pump is fixed with the bottom surface of the sewage well through expansion bolts.

7. A lift-type intercepting well as defined in claim 6, wherein: the sewage discharge pipe is a pressure pipeline, a rigid waterproof sleeve is arranged in the pipeline hole, and the rigid waterproof sleeve is sleeved outside the sewage discharge pipe to fix the sewage discharge pipe.

8. A lift-type intercepting well as defined in claim 7, wherein: the diameter of the sewage discharge pipe is DN1000.

9. A lift-type intercepting well as defined in claim 1, wherein: the liquid level sensor is a radar liquid level sensor and is arranged at a position 200mm above the control liquid level in the sewage well.