Underground sewage collection system for industrial park
By adopting a buried sewage collection system in the industrial park, the problems of complex facilities and poor sewage flow in overhead laid wastewater pipelines have been solved, and the stability of sewage treatment and operating costs have been achieved.
Patent Information
- Application Number
- CN202510100694.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-04-15
AI Technical Summary
In the wastewater treatment of industrial parks, overhead wastewater pipelines have complex facilities and poor sewage flow, especially in cold northern areas, where pipelines are prone to freezing in winter.
The buried collection system is adopted, and by setting up pipe corridors and pipeline support underground, sewage pipes are laid underground, and collection pits, inspection wells, exhaust valve wells and ventilating pipes are installed to ensure the collection, treatment and ventilation of sewage.
It avoids the problem of pipeline icing in winter, reduces operating costs, ensures smooth flow of sewage, and improves the utilization rate of underground space.
Smart Images
Figure CN119824949A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to an underground sewage collection system for an industrial park. Background Art
[0002] The wastewater from industrial parks is of complex composition and different concentrations. Effective collection of these discharged wastewater is a prerequisite for ensuring the stable operation of the park's sewage treatment plant. In order to standardize the drainage of enterprises and prevent them from secretly discharging or leaking, newly built industrial parks generally adopt the sewage collection method of "one enterprise, one pipe, overhead laying".
[0003] This model requires the construction of an overhead carrier, which requires a large initial investment and has high requirements for the performance of the pipes. In the cold northern regions, there is a problem of freezing in winter, so heating and insulation measures are required, and the operating cost is high. In addition, in order to ensure smooth traffic in the park, the overhead laying of the road and the entrance of the enterprise requires the use of a convex steel truss, which can easily cause poor flow of sewage. Summary of the invention
[0004] The purpose of the present invention is to provide an underground sewage collection system for an industrial park, so as to solve the problems of complex facilities and poor sewage flow existing in the overhead laying of sewage pipes.
[0005] The technical solution of the present invention is: a buried sewage collection system for an industrial park, an underground pipe gallery is provided between the sewage discharge enterprise and the sewage treatment plant, the sewage pipes of the sewage discharge enterprise are erected in the underground pipe gallery through pipe supports, collection pits are provided at intervals at the bottom of the underground pipe gallery, inspection wells are provided at intervals above the underground pipe gallery, exhaust valve wells are provided at intervals at the underground pipe gallery, the exhaust valve wells are connected to ventilation pipes, the ends of the ventilation pipes are located above the ground, and inspection well covers are provided on the tops of the exhaust valve wells.
[0006] As a further improvement of the present invention, the ventilation pipe is connected to a deodorizing device, and the deodorizing device is connected to an exhaust pipe.
[0007] As a further improvement of the present invention, a louver air outlet is provided at the end of the exhaust pipe.
[0008] As a further improvement of the present invention, a grille cover is provided on the top of the sump.
[0009] As a further improvement of the present invention, the bottom of the underground pipe gallery slopes toward the sump.
[0010] As a further improvement of the present invention, a cushion block is provided at the bottom of the sewage pipe, and the sewage pipe is fixed to the pipe bracket by a pipe clamp.
[0011] As a further improvement of the present invention, pipe supports are arranged on the left and right side walls of the underground pipe gallery, the pipe supports are provided with multiple layers, and the sewage pipes are arranged on the pipe supports from top to bottom in order from small to large pipe diameter.
[0012] As a further improvement of the present invention, a lighting lamp is provided in the underground pipe gallery, and the lighting lamp is connected to a photovoltaic device via a cable.
[0013] As a further improvement of the present invention, an exhaust pipe is provided at the raised part or flat section of the sewage pipe, the exhaust pipe is located in the exhaust valve well, and an exhaust valve is provided on the exhaust pipe; drain pipes are provided at intervals at the low-lying part of the sewage pipe, and drain valves are provided on the drain pipes.
[0014] As a further improvement of the present invention, the sewage pipe is provided with inspection valves at intervals; the sewage pipe is provided with expansion joints at intervals.
[0015] The beneficial effects of the present invention are as follows: the present invention improves the traditional overhead laying method of sewage pipes into an underground method, and sets the sewage pipes in the underground pipe gallery, which can avoid the problem of pipeline freezing in winter and reduce operating costs. The sewage pipes are laid in the underground pipe gallery through pipe supports to prevent the sewage pipes from being soaked in water, and are laid in multiple layers, with a small footprint and high underground space utilization. The present invention sets a sump in the underground pipe gallery. On the one hand, when a sewage pipe leaks, the sewage can be collected in the sump for unified treatment. On the other hand, when an accident is repaired, the sewage discharged in the sewage pipe is collected in the sump for unified treatment. The present invention sets a patrol well ventilation pipe in the underground pipe gallery to facilitate personnel patrol inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is the internal plan layout diagram of the underground pipe gallery in the present invention; Figure 3 It is a structural schematic diagram of the pipeline support in the present invention; Figure 4 It is a structural schematic diagram of the drain pipe in the present invention.
[0017] In the figure: 1 is an underground pipe gallery; 1-1 is an exhaust valve shaft; 1-2 is a ventilation pipe; 2 is a sewage pipe; 3 is a pipe bracket; 3-1 is a pipe clamp; 3-2 is a cushion block; 4 is an exhaust pipe; 4-1 is an exhaust valve; 5 is an expansion joint; 6 is a maintenance valve; 8 is a drain pipe; 8-1 is a drain valve; 9 is a photovoltaic device; 9-1 is an electric cable; 10 is a lighting lamp; 11 is a deodorization device; 11-1 is an exhaust pipe; 11-2 is a louvered air outlet; 12 is an inspection well cover; 13 is a sump; 14 is a grille cover. DETAILED DESCRIPTION
[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] like Figure 1-4As shown, an underground sewage collection system for an industrial park is provided, wherein an underground pipe gallery 1 is provided between the sewage discharge enterprise and the sewage treatment plant, the sewage pipe 2 of the sewage discharge enterprise is erected in the underground pipe gallery 1 through a pipe support 3, a sump 13 is provided at a certain interval at the bottom of the underground pipe gallery 1, an inspection well 12 is provided every 50 to 100 meters above the underground pipe gallery 1, and a lockable manhole cover is provided on the inspection well 12, an exhaust valve well 1-1 is provided every 500 meters in the underground pipe gallery 1, the exhaust valve well 1-1 is connected to a vent pipe 1-2, the end of the vent pipe 1-2 is located above the ground, and an inspection well cover 12 is provided on the top of the exhaust valve well 1-1.
[0020] The ventilation pipe 1-2 is connected to a deodorizing device 11, and the deodorizing device 11 is connected to an exhaust pipe 11-1.
[0021] The exhaust pipe 11-1 is led to 3m above the ground, and a rainproof louver air outlet 11-2 is provided at the end thereof, and a poisonous and harmful gas alarm device is also provided.
[0022] A hot-dip galvanized steel grille cover 14 is provided on the top of the sump 13 .
[0023] The bottom of the underground pipe gallery 1 slopes toward the sump 13 at a slope of not less than 2‰.
[0024] A rubber pad 3 - 2 is provided at the bottom of the sewage pipe 2 , and the sewage pipe 2 is fixed on the pipe support 3 through a pipe clamp 3 - 1 .
[0025] The pipe support 3 is arranged on the left and right side walls of the underground pipe gallery 1. The pipe support 3 has multiple layers. The sewage pipes 2 are arranged on the pipe support 3 from top to bottom in the order of pipe diameter from small to large.
[0026] A lighting lamp 10 is arranged in the underground pipe gallery 1, and the lighting lamp 10 is connected to a photovoltaic device 9 through a cable 9-1. The lighting lamp 10 is powered by the photovoltaic device 9.
[0027] An exhaust pipe 4 is provided at a raised part or a flat section of the sewage pipe 2. The exhaust pipe 4 is located in an exhaust valve well 1-1 and an exhaust valve 4-1 is provided on the exhaust pipe 4. Drain pipes 8 are provided at intervals at low-lying parts of the sewage pipe 2 and drain valves 8-1 are provided on the drain pipes 8.
[0028] The sewage pipe 2 is provided with a maintenance valve 6 every 1000m to meet the maintenance needs under accident conditions; the sewage pipe 2 is provided with an expansion joint 5 every 200-300m to buffer the thermal expansion and contraction, settlement deformation and vibration of the sewage pipe 2.
[0029] The top of the underground pipe gallery 1 is located below the local soil freezing line, and is laid out in the green belt or under the sidewalk near the sewage outlet of the park enterprise, extending from the sewage discharge enterprise to the park sewage treatment plant. Sewage pipes 2 are set up on both sides of the underground pipe gallery 1, and an inspection channel is reserved in the middle; the width of the inspection channel is not less than 1 meter, and the net height meets the needs of personnel passage and is not less than 2 meters.
[0030] Sewage pipe 2 adopts a one-enterprise-one-pipe sewage collection mode. Each dedicated pipe is connected to a corresponding single or multiple sewage-discharging enterprises of the same type, and discharges at different times, which can effectively supervise the illegal discharge and leakage behaviors of enterprises in the park.
[0031] The base plate and side walls of the underground pipe gallery 1 are made of cast-in-place reinforced concrete structure, the top plate can be made of precast concrete cover plate, and the upper part of the top plate can be a green belt or sidewalk. The sewage pipe 2 is made of corrosion-resistant plastic pipe, and the pipe diameter is determined according to the enterprise's drainage volume, generally DN50~DN200. The same type of enterprises can share one pipe for peak discharge. The pipe support 3 can be made of steel or cast iron, with a spacing of 0.3~0.5 meters between each layer. Each pipe support 3 can arrange 2~4 sewage pipes 2 side by side.
[0032] The exhaust valve well 1-1 transports the odor to the deodorization equipment 11 through the ventilation pipe 1-2 for treatment, and then discharges it through the exhaust pipe 11-1, thus preventing the toxic and harmful gases in the sewage pipe 2 from being directly discharged into the atmosphere to pollute the environment.
[0033] During accident maintenance, the maintenance valve 6 is closed, and the drain valve 8 is opened to drain the sewage pipe 2 into the sump 13. The wastewater in the sump 13 can be sucked by a tanker and sent to the park sewage plant for disposal.
Claims
1. An underground sewage collection system for an industrial park, characterized by: An underground pipe gallery (1) is provided between a sewage discharge enterprise and a sewage treatment plant. A sewage pipe (2) of the sewage discharge enterprise is erected in the underground pipe gallery (1) via a pipe support (3). A sump (13) is provided at intervals at the bottom of the underground pipe gallery (1). An inspection well (12) is provided at intervals above the underground pipe gallery (1). An exhaust valve well (1-1) is provided at intervals at the underground pipe gallery (1). The exhaust valve well (1-1) is connected to a vent pipe (1-2). The end of the vent pipe (1-2) is located above the ground. An inspection well cover (12) is provided at the top of the exhaust valve well (1-1).
2. The underground sewage collection system for industrial parks according to claim 1 is characterized by: The ventilation pipe (1-2) is connected to a deodorizing device (11), and the deodorizing device (11) is connected to an exhaust pipe (11-1).
3. The buried sewage collection system for industrial parks according to claim 2 is characterized by: The end of the exhaust pipe (11-1) is provided with a louver air outlet (11-2).
4. An underground sewage collection system for industrial parks according to any one of claims 1 to 3, characterized in that: A grille cover plate (14) is provided on the top of the sump (13).
5. The underground sewage collection system for industrial parks according to claim 4 is characterized by: The bottom of the underground pipe gallery (1) slopes towards the sump (13).
6. The underground sewage collection system for industrial parks according to claim 5 is characterized by: A cushion block (3-2) is provided at the bottom of the sewage pipe (2), and the sewage pipe (2) is fixed to the pipe support (3) via a pipe clamp (3-1).
7. The underground sewage collection system for industrial parks according to claim 6 is characterized by: The pipe supports (3) are arranged on the left and right side walls of the underground pipe gallery (1); the pipe supports (3) are provided with multiple layers; and the sewage pipes (2) are arranged on the pipe supports (3) from top to bottom in the order of pipe diameter from small to large.
8. The buried sewage collection system for industrial parks according to claim 7 is characterized by: A lighting lamp (10) is provided in the underground pipe gallery (1), and the lighting lamp (10) is connected to the photovoltaic device (9) via a cable (9-1).
9. The buried sewage collection system for industrial parks according to claim 8, characterized in that: An exhaust pipe (4) is arranged at a raised part or a flat section of the sewage pipe (2), the exhaust pipe (4) is located in an exhaust valve well (1-1), and an exhaust valve (4-1) is arranged on the exhaust pipe (4); drain pipes (8) are arranged at intervals at a low-lying part of the sewage pipe (2), and drain valves (8-1) are arranged on the drain pipes (8).
10. The underground sewage collection system for industrial parks according to claim 9, characterized in that: The sewage pipe (2) is provided with inspection valves (6) at regular intervals; and the sewage pipe (2) is provided with expansion joints (5) at regular intervals.