Hydraulic design structure of underground pump station in ancient city
By installing tiered pump sets and sensors in the underground pumping station of the ancient city, combined with overflow wells and sedimentation areas, the problems of tiered management of rainwater resources and insufficient drainage in the ancient city have been solved, achieving efficient tiered drainage and flood control functions and improving the flood control capacity of the ancient city.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU URBAN PLANNING & DESIGN GRP CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-16
AI Technical Summary
The existing underground pumping stations in the old city area have a single function and cannot effectively manage rainwater resources in layers, resulting in frequent floods and insufficient drainage capacity, which can easily cause economic losses.
The underground pumping station is equipped with upper, middle and lower pump sets and corresponding water level sensors to achieve graded management of rainwater; an overflow well and a second pump set are set up to deal with heavy rain; a sedimentation zone is used for sedimentation, and a filter screen is used for impurity filtration to ensure the normal operation of the pumps.
It has enabled graded management of rainwater and efficient drainage in the ancient city area, made rational use of water resources, avoided floods, improved irrigation and drainage capacity, and reduced economic losses.
Smart Images
Figure CN224363387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal engineering technology, and more specifically to a hydraulic design structure for an underground pumping station in an old city. Background Technology
[0002] Underground pumping stations are a common term for buried pumping stations. They are primarily used in urban areas or communities lacking gravity-flow systems to provide water supply, irrigation, and drainage pressure, and are typically buried underground. Because they are underground, they are greatly affected by geological conditions. Generally, a concrete foundation is used to fix the underground pumping station in place, reducing the impact of geological changes. Ancient urban areas are often low-lying, prone to flooding during rainfall, and have limited flood drainage capacity, easily leading to flooding of urban roads. Existing underground pumping stations in ancient urban areas are functionally limited, only providing drainage and lacking hydraulic design. Therefore, during periods of heavy rainfall, the underground pumping stations cannot drain water in time, easily causing floods that inundate infrastructure and property, severely impacting people's daily lives. To address this, the inventor proposes a hydraulic design structure for underground pumping stations in ancient urban areas. By implementing hydraulic design, layered drainage can be achieved, maximizing drainage and irrigation capacity in ancient urban areas and improving flood control capabilities.
[0003] To provide an underground pumping station suitable for rivers with small elevation differences, integrating circulation, water replenishment, and drainage functions, Chinese Patent (Authorization Announcement No.: CN213062202U) discloses an underground pumping station system suitable for river circulation, water replenishment, and drainage. This utility model includes an outer wall flush with the river edge, located at the confluence of the upstream and downstream sections of the river and an open channel. A first partition wall separating the river sections is provided between the outer walls. A control gate is provided between the first partition wall and one side of the outer wall. A pump room is located on the upstream side of the river between the first partition wall and the other side of the outer wall. A second partition wall is located on the downstream side of the river to separate the downstream section from the open channel. The second partition wall divides the water intake channel into a first water intake channel connected to the downstream section and a second water intake channel connected to the open channel. Both the first and second water intake channels are equipped with control gates. Pumps controlling the flow direction on both sides of the pump room are installed inside the pump room. This utility model is suitable for rivers with small elevation differences and integrates circulation, water replenishment, and drainage functions.
[0004] The proposed solution still has some shortcomings in its application. Rainwater collection in the old city requires multi-layered classification, including irrigation for green spaces, connection to municipal pipe networks, and drainage into waterways. Otherwise, water resources will be wasted. Furthermore, the old city is low-lying, and during periods of heavy rainfall, rapid drainage and irrigation are crucial to prevent the area from being flooded in a short time, causing economic and property losses. Therefore, improvements to the underground pumping station structure are needed, along with a rational hydraulic design to classify and stratify the water flow and provide early warning systems to minimize the risk of flooding. Utility Model Content
[0005] This utility model discloses a hydraulic design structure for an underground pumping station in an ancient city, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the existing technology.
[0006] The technical solution adopted in this utility model is as follows:
[0007] A hydraulic design structure for an underground pumping station in an old urban area includes urban roads and an underground pumping station. Drainage ditches are provided on both sides of the urban roads. The underground pumping station is located below the drainage ditches and is connected to the drainage ditches through pipes. Several water pumps are installed on the left and right sides of the underground pumping station. The water pumps are arranged in upper, middle and lower layers, including an upper layer water pump group, a middle layer water pump group and a lower layer water pump group. The upper layer water pump group, the middle layer water pump group and the lower layer water pump group are respectively connected to the external greening irrigation network, the municipal flood drainage network and the river. An overflow well is provided on one side of the underground pumping station. The overflow well is connected to the underground pumping station and a second water pump group is provided on one side.
[0008] Furthermore, the drainage ditch is equipped with a filter screen in the middle section and a water inlet at the bottom, which is connected to the underground pumping station.
[0009] Furthermore, the upper and lower parts of the inner side of the underground pumping station are respectively equipped with an upper water level sensor, a middle water level sensor, and a lower water level sensor. The upper water level sensor, the middle water level sensor, and the lower water level sensor are respectively located above the upper pump group, the middle pump group, and the lower pump group.
[0010] Furthermore, a sedimentation zone is provided at the bottom of the underground pumping station.
[0011] Furthermore, the underground pumping station is equipped with a water outlet at the top, which is connected to the top of the overflow well via a pipe.
[0012] Furthermore, the second pump unit is connected to an external river channel.
[0013] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:
[0014] This utility model firstly establishes an underground pumping station with upper, middle, and lower pumping units from top to bottom. Above each pumping unit are corresponding upper, middle, and lower water level sensors. When the water level reaches a sensor, the corresponding pumping unit is activated to extract rainwater, discharging it to external greening irrigation networks, municipal drainage networks, and waterways. This system achieves tiered management of rainwater in the old city area, rationally utilizing water resources and providing tiered drainage. Next, the underground... An overflow well is installed on one side of the underground pumping station. During periods of heavy rainfall, some water can overflow into the overflow well and be drained by a second pumping unit, further improving the drainage capacity of the ancient city and minimizing economic losses. Finally, a sedimentation zone is located at the bottom of the underground pumping station to effectively settle silt and mud. Simultaneously, a filter screen in the drainage ditch can filter impurities, preventing them from clogging the pumping units and affecting pump operation. This invention features a novel structure, a reasonable hydraulic design, and strong practicality, effectively improving the irrigation and drainage capacity of the ancient city and is suitable for widespread application. Attached Figure Description
[0015] Figure 1 This is a side view of the structure of this utility model.
[0016] Figure 2 This is a top view of the structure of this utility model.
[0017] Figure 3 This is a front view structural diagram of the present invention. Detailed Implementation
[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0019] like Figures 1 to 3 As shown, a hydraulic design structure for an underground pumping station in an ancient city includes an urban road 1 and an underground pumping station 2. Drainage ditches 3 are provided on both sides of the urban road 1. The underground pumping station 2 is located below the drainage ditches 3 and is connected to the drainage ditches 3 through pipes. Several water pumps 4 are installed on the left and right sides of the underground pumping station 2. The water pumps 4 are arranged in upper, middle and lower layers, including an upper water pump group 41, a middle water pump group 42 and a lower water pump group 43. The upper water pump group 41, the middle water pump group 42 and the lower water pump group 43 are respectively connected to the external greening irrigation network, the municipal flood drainage network and the river. An overflow well 5 is provided on one side of the underground pumping station 2. The overflow well 5 is connected to the underground pumping station 2 and a second water pump group 6 is provided on one side.
[0020] Furthermore, the drainage ditch 3 is equipped with a filter screen 7 in the middle section and a water inlet at the bottom, which is connected to the underground pump station 2.
[0021] Furthermore, the upper and lower parts of the inner side of the underground pumping station 2 are respectively equipped with an upper water level sensor 8, a middle water level sensor 9, and a lower water level sensor 10. The upper water level sensor 8, the middle water level sensor 9, and the lower water level sensor 10 are respectively located above the upper pump group 41, the middle pump group 42, and the lower pump group 43.
[0022] Furthermore, the underground pump station 2 is provided with a sedimentation zone 11 at its lower part.
[0023] Furthermore, the underground pump station 2 is provided with a water outlet at the top, which is connected to the top of the overflow well 5 through a pipe.
[0024] Furthermore, the second pump unit 6 is connected to an external river channel.
[0025] Example: First, rainwater enters underground pumping station 2 after being filtered through filter screen 7 from drainage ditch 3, and settles in sedimentation zone 11. When the water level reaches the lower water level sensor 10, the lower pump group 43 is activated to pump rainwater to the ground greening irrigation network for sanitation workers to irrigate the greening. Next, when the water level reaches the middle water level sensor 9, the middle pump group 42 is activated to pump rainwater to the municipal flood drainage network. Then, when the water level reaches the upper water level sensor 10, the upper pump group 41 is activated to pump rainwater to the river for flood drainage. Finally, when the rainwater volume is large, it flows through the overflow outlet of underground pumping station 2 into overflow well 5, and the second pump group 6 is activated to assist in pumping rainwater to the external river. The underground pumping station 2 is managed in a layered and graded manner.
[0026] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:
[0027] This utility model firstly establishes an underground pumping station with upper, middle, and lower pumping units from top to bottom. Above each pumping unit are corresponding upper, middle, and lower water level sensors. When the water level reaches a sensor, the corresponding pumping unit is activated to extract rainwater, discharging it to external greening irrigation networks, municipal drainage networks, and waterways. This system achieves tiered management of rainwater in the old city area, rationally utilizing water resources and providing tiered drainage. Next, the underground... An overflow well is installed on one side of the underground pumping station. During periods of heavy rainfall, some water can overflow into the overflow well and be drained by a second pumping unit, further improving the drainage capacity of the ancient city and minimizing economic losses. Finally, a sedimentation zone is located at the bottom of the underground pumping station to effectively settle silt and mud. Simultaneously, a filter screen in the drainage ditch can filter impurities, preventing them from clogging the pumping units and affecting pump operation. This invention features a novel structure, a reasonable hydraulic design, and strong practicality, effectively improving the irrigation and drainage capacity of the ancient city and is suitable for widespread application.
[0028] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.
Claims
1. A hydraulic design structure for an underground pumping station in an ancient city, characterized in that: The system includes urban roads and underground pumping stations. Drainage ditches are provided on both sides of the urban roads. The underground pumping stations are located below the drainage ditches and are connected to the drainage ditches through pipes. Several water pumps are installed on the left and right sides of the underground pumping stations. The water pumps are arranged in upper, middle and lower layers, including upper-layer water pump groups, middle-layer water pump groups and lower-layer water pump groups. The upper-layer water pump groups, the middle-layer water pump groups and the lower-layer water pump groups are respectively connected to the external greening irrigation network, the municipal flood drainage network and the river. An overflow well is provided on one side of the underground pumping station. The overflow well is connected to the underground pumping station and a second water pump group is provided on one side.
2. The hydraulic design structure of an underground pumping station in an ancient city as described in claim 1, characterized in that: The drainage ditch is equipped with a filter screen in the middle section and a water inlet at the bottom, which is connected to the underground pumping station.
3. The hydraulic design structure of an underground pumping station in an ancient city as described in claim 1, characterized in that: The underground pumping station is equipped with an upper water level sensor, a middle water level sensor, and a lower water level sensor on its inner upper and lower parts, respectively. The upper water level sensor, the middle water level sensor, and the lower water level sensor are respectively located above the upper pump group, the middle pump group, and the lower pump group.
4. The hydraulic design structure of an underground pumping station in an ancient city as described in claim 1, characterized in that: The underground pumping station has a sedimentation area at its lower part.
5. The hydraulic design structure of an underground pumping station in an ancient city as described in claim 1, characterized in that: The underground pumping station is equipped with a water outlet at the top, which is connected to the top of the overflow well via a pipe.
6. The hydraulic design structure of an underground pumping station in an ancient city as described in claim 1, characterized in that: The second pump set is connected to an external river channel.