Visual rainwater drainage system for pharmaceutical chemical industry park
By combining open drains and culverts in the drainage system, the problems of misconnected pipes, damaged open drains, and sediment deposition in rainwater discharge in pharmaceutical and chemical industrial parks have been solved, achieving a simple, easy-to-manage, and visualized rainwater discharge system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-15
AI Technical Summary
In pharmaceutical and chemical industrial parks, there are frequent instances of misconnected and mixed rainwater and sewage pipes. Furthermore, open ditches are easily damaged by heavy vehicles, resulting in severe sediment deposition and making it difficult to implement visual rainwater drainage.
The drainage system adopts a combination of open ditches and culverts. The open ditches are located on the lower side of the road, the culverts are pre-buried, and rectangular inspection wells are set at the connection points. The grates collect rainwater, the culverts are wrapped with metal sleeves, and the inspection wells are equipped with sedimentation tanks and gratings. The rainwater grates are spliced in sections for easy inspection and cleaning.
It reduces damage to the pipe trench structure, avoids vehicle crushing, reduces sediment deposition, enables convenient rainwater management and inspection, and ensures visible discharge of rainwater systems.
Smart Images
Figure CN224244056U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pharmaceutical and chemical industry, and specifically relates to a visualized rainwater drainage system for pharmaceutical and chemical industrial parks. Background Technology
[0002] In recent years, the number of pharmaceutical and chemical industrial parks has been increasing, leading to numerous management tasks related to public facilities, environmental sanitation, and landscaping within these parks. For decades, rainwater and wastewater discharge in these parks typically involved underground pipe installations. However, in recent years, environmental protection departments across the country have discovered numerous instances of incorrect or mixed connections between these underground rainwater and wastewater pipes. Because wastewater from pharmaceutical and chemical industrial parks often contains a variety of pollutants, high concentrations, and toxicity, in order to protect the environment, more and more environmental protection departments are requiring these parks to adopt visible open drainage systems for rainwater discharge to prevent incorrect or mixed connections between rainwater and wastewater pipes. Using visible open drainage systems, supplemented by regular environmental inspections, allows for early detection and treatment of incorrect or mixed connections between rainwater and wastewater pipes, preventing industrial wastewater from entering natural water bodies through rainwater pipes.
[0003] However, due to the complex underground pipe network in pharmaceutical and chemical industrial parks, the structural damage to open rainwater drains under roads caused by heavy vehicles, and the accumulation of silt in these drains, implementing a visualized rainwater drainage system in these parks faces numerous challenges. Therefore, optimizing the connection between road rainwater collection, roof rainwater collection, and open rainwater drains to form a mature rainwater visualization system is currently the key and challenging aspect of rainwater drainage visualization in pharmaceutical and chemical industrial parks. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a visual rainwater drainage system for pharmaceutical and chemical industrial parks. This system has a simple structure, is easy to inspect and manage, and can reduce damage to pipe trench structures and sediment accumulation.
[0005] The technical solution adopted to achieve the purpose of this utility model is:
[0006] A visualized rainwater drainage system for a pharmaceutical and chemical industrial park includes a rainwater collection system for the park's roads. The rainwater collection system comprises multiple sections of open rainwater ditches and multiple sections of culverts. Each open rainwater ditch is positioned along the park's roads, on the lower side of the road's slope. A rainwater grate cover is installed on the upper surface of each open rainwater ditch. Adjacent sections of the open rainwater ditch are connected by the culverts, which are embedded beneath the park's roads. Rectangular inspection wells are provided at the connections between the open and culvert sections. The end of the rainwater collection system is connected to a rainwater inspection well on a municipal road outside the park via the culverts.
[0007] Furthermore, it also includes multiple roof rainwater hoppers, which are arranged around the perimeter of the factory roofs in the park. These hoppers are used to collect rainwater from the roofs and then directly discharge it to the outdoor drainage system. Some of the rainwater infiltrates through the green belts, while the rest flows onto the roads in the park.
[0008] Furthermore, the park road is a single-sided slope, and the storm drain is flush with the lowest point of the park road surface.
[0009] Furthermore, the open drainage ditch is divided into multiple sections according to the branch roads of the park. The open drainage ditch set along the main road of the park is the open drainage ditch of the main road of the factory area, and the open drainage ditch set along the branch roads of the park is the open drainage ditch of the branch roads of the factory area. The open drainage ditches of the main road of the factory area are connected to each other through the underground drainage pipe. The open drainage ditches of the branch roads of the factory area are connected to the open drainage ditches of the adjacent main road of the factory area through the underground drainage pipe.
[0010] Furthermore, the outer side of the rainwater culvert is also covered with a metal steel sleeve.
[0011] Furthermore, the rainwater grate cover is composed of several sections, which are spliced together. The rainwater grate cover has evenly distributed grid gaps, allowing for rapid collection of rainwater from the road. The segmented splicing of the rainwater grate facilitates the removal of the cover to clear any sediment deposited in the open drainage ditches.
[0012] Furthermore, the storm drain is set along the curb of the park road, with a starting depth of 0.3-0.4m, a width of 0.3-0.5m, and a slope of 0.3-0.5%.
[0013] Furthermore, the lower end of the rectangular inspection well is provided with a sedimentation trough, which is lower than the rainwater culvert. The sedimentation trough can settle most of the silt, reducing silt deposition in the subsequent rainwater system.
[0014] Furthermore, the rectangular inspection well is also equipped with an inclined grid mesh.
[0015] The above technical solution has the following beneficial effects:
[0016] This utility model has a simple structure, employing a combination of underground rainwater pipes and open rainwater ditches. Each section of the open rainwater ditch is installed along the curb of the park road, located on the lower side of the road slope and flush with the lowest point of the road surface. At the driveway, adjacent sections of the open rainwater ditch are connected by pre-buried underground rainwater pipes. This not only does not obstruct vehicle traffic above the underground rainwater pipes but also minimizes damage from vehicle loads, thus reducing damage to the pipe and trench structure. Rainwater is directly collected by rainwater grates at the top of the open rainwater ditch, replacing the existing practice of installing rainwater inlets, reducing the burial depth of the rainwater system. A rectangular inspection well is provided at the connection point between the open rainwater ditch and the underground rainwater pipe, facilitating connection and inspection.
[0017] Rainwater from the roof is collected through multiple roof rainwater hoppers and then directly discharged to the outdoor drainage system. Some rainwater infiltrates through the green belt, while the rest overflows onto the rainwater grate cover, thus completing the rainwater collection process.
[0018] The outer side of the rainwater culvert is also covered with a metal steel sleeve. By covering the outer layer of the rainwater culvert with a metal steel sleeve, the rainwater culvert is effectively prevented from being run over by vehicles.
[0019] A sedimentation trough and a bar screen are installed inside the rectangular inspection well. The sedimentation trough is lower than the underground storm drain pipe, which facilitates the collection and sedimentation of silt washed into the open storm drain by the road. The bar screen can block upstream silt and reduce its deposition in the downstream storm drain.
[0020] The rainwater grate cover is divided into several sections, each segmented according to the design length. The rainwater grates are assembled from these sections, and each section can be opened to facilitate the removal of bottom sludge. This allows for inspection during the dry season to check for rainwater and sewage mixing, and for routine maintenance to remove bottom sludge, simplifying park management.
[0021] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of specific embodiment 1;
[0023] Figure 2 This is a plan view of the open rainwater ditch, rectangular inspection well, and underground rainwater pipe in Specific Embodiment 1;
[0024] Figure 3 for Figure 2 Sectional view of AA;
[0025] Figure 4 This is a schematic diagram of the structure of the open rainwater ditch, rectangular inspection well, and underground rainwater pipe in Specific Embodiment 1;
[0026] Figure 5 This is a schematic diagram of the structure of the open rainwater ditch set up on the park road in specific embodiment 1. Detailed Implementation Specific Implementation
[0028] See Figures 1 to 5 As shown, a visualized rainwater drainage system for a pharmaceutical and chemical industrial park includes park roads 4 and a rainwater collection system for the park roads. The rainwater collection system includes multiple sections of open rainwater ditches 1, multiple sections of culverts 2, and multiple roof rainwater hoppers 3. All park roads 4 are single-sided slopes. Each section of the open rainwater ditch 1 is installed along the park road 4. Each road within the park has only one section of the open rainwater ditch. The open rainwater ditch is located along the curb stone 14 of the park road on the side of the road, and is situated on the lower side of the slope of the park road. The open rainwater ditch 1 is flush with the lowest point of the road surface of the park road 4, meaning that the open rainwater ditch 1 is only installed on one side of the road. Adjacent sections of the open rainwater ditch are connected by culverts 2, which are pre-buried beneath the park roads.
[0029] The open drainage ditch is divided into multiple sections according to the branch roads of the park. The open drainage ditch set along the main road of the park is the main road drainage ditch of the factory area, and the open drainage ditch set along the branch roads of the park is the branch road drainage ditch of the factory area. The open drainage ditches of the main road of the factory area are connected to each other by the rainwater culvert. The open drainage ditches of the branch roads of the factory area are connected to the rainwater ditches of the adjacent main roads of the factory area through the rainwater culvert. The starting point of each open drainage ditch 1 has a depth of 0.3-0.4m, a width of 0.3-0.5m, and a slope of 0.3-0.5%. The slope of the rainwater culvert is the same as the slope of the open drainage ditch. This slope facilitates the drainage of rainwater in one section of the open drainage ditch to another section of the open drainage ditch through the rainwater culvert. In this specific embodiment: Each factory building in the industrial park is surrounded by two sections of open storm drains, one for the main road and one for the side roads. The open storm drains on the main roads are connected by culverts, and the open storm drains on the side roads are connected to the adjacent main road's open storm drain via culverts. The open storm drains are 0.35m deep, 0.35m wide, and have a 0.4% slope, ensuring they do not obstruct vehicle traffic and are not easily damaged by vehicle loads. Rainwater flows automatically into the open storm drains due to the road's slope, and the drains are easy to inspect. In this specific embodiment: If a green belt surrounds the factory buildings, the culverts connecting the open storm drains on the side roads to the adjacent main road are pre-buried under the green belt.
[0030] The upper surface of the open rainwater ditch 1 is provided with a rainwater grate cover 5. The rainwater grate cover 5 is made of cast iron grate and is divided into several grate cover sections, which are spliced together. The grate gaps are evenly distributed on the rainwater grate cover. In this specific embodiment, the rainwater grate cover 5 is composed of multiple grate cover sections, each 1 to 2 meters long. Too long a section would be too heavy and inconvenient to open, and would also facilitate the replacement of damaged grate cover sections, reducing maintenance costs. Generally, rainwater inlets are about 1 meter deep, often resulting in a starting burial depth of up to 1 meter for the rainwater system. This utility model eliminates the need for separate rainwater inlets on vehicular roads, replacing them with cast iron grate covers over the open rainwater ditch. This reduces the starting burial depth of the rainwater system to 0.3 meters, decreasing the overall burial depth of the drainage ditch and saving costs.
[0031] Possibly, the outer side of the rainwater culvert 2 may also be covered with a metal steel sleeve. In this specific embodiment: when there is a green belt 10, it is preferable to directly bury the rainwater culvert shallowly in the green belt. When there is no green belt available, if the rainwater culvert crosses a roadway and the soil cover of the culvert is less than 0.7m, a metal steel sleeve needs to be installed under the roadway. If the soil cover of the rainwater culvert under the roadway is not less than 0.7m, the rainwater culvert can be laid directly under the roadway without the need for a metal steel sleeve.
[0032] A rectangular inspection well 6 is provided at the connection between the open rainwater ditch 1 and the underground rainwater pipe 2. Each rectangular inspection well is connected with a flat bottom joint. The rectangular inspection well 6 facilitates the connection between the open ditch and the underground pipe. A manhole 13 with a diameter of 700mm is provided on the rectangular inspection well 6, and the manhole 13 is equipped with a sealing cover. A sedimentation tank 7 is provided at the lower end of the rectangular inspection well 6. The sedimentation tank 7 is lower than the underground rainwater pipe 2. In this specific embodiment, the bottom of the rectangular inspection well 6 is provided with a sedimentation tank 7, and the bottom of the sedimentation tank 7 is more than 400mm lower than the bottom of the underground rainwater pipe 2. The sedimentation tank allows the sediment flowing into the open rainwater ditch to settle. A ladder 11 is provided inside the rectangular inspection well for easy inspection or cleaning of the sediment in the sedimentation tank.
[0033] The rectangular inspection well 6 is also equipped with an inclined grid 12. The grid spacing of the grid 12 is 50mm. The grid 7 is movably installed in the inspection well for easy removal and placement. The grid can intercept most of the mud and sand. Through regular cleaning, the sediment deposition in the subsequent rainwater system can be reduced.
[0034] The end of the park road rainwater collection system is connected to the rainwater inspection well 9 of the municipal road outside the park through the rainwater culvert 2.
[0035] The multiple roof rainwater hoppers 3 are arranged around the roof of the factory buildings in the park. The roof rainwater hoppers 3 are used to collect rainwater from the roof and then directly discharge it to the outdoor drainage. Some rainwater infiltrates through the green belt, and the rest of the rainwater flows to the road in the park and is covered by rainwater grates to complete the rainwater collection.
Claims
1. A visualized rainwater drainage system for a pharmaceutical and chemical industrial park, comprising a rainwater harvesting system for park roads, characterized in that: The park road rainwater collection system includes multiple sections of open rainwater ditches and multiple sections of culverts. Each open rainwater ditch is set along the park road and is located on the lower side of the park road slope. The upper end of each open rainwater ditch is equipped with a rainwater grate cover. Adjacent sections of the open rainwater ditch are connected by the culverts, which are pre-buried under the park road. Rectangular inspection wells are provided at the connection points between the open rainwater ditch and the culvert. The end of the park road rainwater collection system is connected to the rainwater inspection wells of the municipal roads outside the park through the culverts.
2. The visualized rainwater drainage system for a pharmaceutical and chemical industrial park according to claim 1, characterized in that: It also includes multiple roof rainwater hoppers, which are installed around the perimeter of the factory roofs in the park. These hoppers collect rainwater from the roofs and discharge it directly to the outdoor drainage system. Some of the rainwater infiltrates through the green belts, while the rest flows onto the roads in the park.
3. The visualized rainwater drainage system for a pharmaceutical and chemical industrial park according to claim 1, characterized in that: The park road is a single-sided slope, and the storm drain is flush with the lowest point of the park road surface.
4. The visualized rainwater drainage system for a pharmaceutical and chemical industrial park according to claim 1, characterized in that: The open storm drains are divided into multiple sections based on the branch roads of the park. The open storm drains along the main roads of the park are the main storm drains of the factory area, and the open storm drains along the branch roads of the park are the branch storm drains of the factory area. The open storm drains of the main roads of the factory area are connected to each other through the underground storm drain pipes. The open storm drains of the branch roads of the factory area are connected to the open storm drains of the adjacent main roads of the factory area through the underground storm drain pipes.
5. A visualized rainwater drainage system for a pharmaceutical and chemical industrial park according to claim 1 or 2, characterized in that: The outer side of the rainwater culvert is also covered with a metal steel sleeve.
6. The visualized rainwater drainage system for a pharmaceutical and chemical industrial park according to claim 1, characterized in that: The rainwater grate cover is divided into several sections, which are spliced together.
7. A visualized rainwater drainage system for a pharmaceutical and chemical industrial park according to claim 1, characterized in that: The storm drain is set along the curb of the park road. The starting point of the storm drain is 0.3-0.4m deep, 0.3-0.5m wide, and has a slope of 0.3-0.5%.
8. A visualized rainwater drainage system for a pharmaceutical and chemical industrial park according to claim 1, characterized in that: The lower end of the rectangular inspection well is provided with a sedimentation trough, which is lower than the rainwater culvert.
9. A visualized rainwater drainage system for a pharmaceutical and chemical industrial park according to claim 1 or 8, characterized in that: The rectangular inspection well is also equipped with an inclined grid.