Pump station device for reducing the buried depth of a sewage treatment plant
Patent Information
- Application Number
- CN202521956117.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-09-11
AI Technical Summary
[0003]为了解决污水处理设备埋深的问题，本实用新型提供一种减少污水处理设备埋深的提升泵站装置，在污水处理设备进水口前端设立一小型提升泵站，消除污水处理设备埋地过深带来的不利影响
（1）通过在污水处理设备前端设置提升泵站，可以将污水处理设备污水进水口的埋地深度提高，使污水处理设备在底下深度整体提高，减少设备顶部的覆土厚度，降低设备的生产费用，为项目整体投资减负；
Smart Images
Figure CN224692824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a booster pump station device for reducing the burial depth of sewage treatment equipment, and belongs to the field of mechanical equipment technology. Background Technology
[0002] For typical industrial production plants, several sewage discharge points (such as public toilets) are typically set up, and a sewage treatment facility is established in a certain area to centrally collect and treat domestic sewage. Normally, domestic sewage is discharged by gravity from various discharge points within the plant, following a designed route to the sewage treatment equipment. If the plant area is large and the sewage discharge points are numerous and dispersed, the length of the sewage pipeline will increase, potentially reaching thousands of meters for the furthest discharge point. Because sewage is discharged by gravity, the pipeline has a minimum slope design requirement (usually 0.3%; for a 1000-meter horizontal pipeline, the vertical drop will be 3 meters). To collect sewage from all discharge points, the burial depth of the sewage treatment equipment is determined by the burial depth of the pipeline from the furthest discharge point to the treatment equipment, i.e., the maximum burial depth of the entire plant's domestic sewage pipeline. Therefore, with a soil cover thickness of over 3 meters on top of the sewage treatment equipment and a treatment facility height of approximately 3 meters, the bottom burial depth will reach over 6 meters. Based on the current situation analysis, the disadvantages are as follows: (1) The thickness of the soil cover will have a significant impact on the overall structure, materials and shell thickness of the sewage treatment equipment. Due to the deep burial depth of the sewage treatment equipment, the soil cover on the top of the equipment is thick. In order to meet the load-bearing capacity of the soil cover, the performance requirements of the sewage treatment equipment also increase with the thickness of the soil. This will increase the overall cost of the equipment and the maintenance costs, and waste funds. (2) The top of the sewage treatment equipment usually has a manhole so that workers can enter the equipment for maintenance and debugging during the equipment maintenance period. However, the size of the manhole is usually only a few hundred millimeters in diameter. When the sewage treatment equipment is buried deep, if maintenance workers want to enter the equipment, they need to climb up and down several meters in the narrow manhole. The excessively long maintenance passage is not only inconvenient for workers to work, but also brings a great safety hazard. (3) The deeper the equipment is buried, the more the corresponding excavation and backfilling volume will increase during construction, increasing the construction cost. Moreover, when the burial depth exceeds a certain depth, it will involve the deep foundation pit expert demonstration, which makes the construction process complicated, increases the construction cost, and affects the construction progress. (4) Wastewater treated by the wastewater treatment equipment must be discharged through the clear water tank inside the equipment. The clear water tank needs to be connected to external valves and related pipelines. If the equipment is buried deep underground, the pipeline length will increase, and the pump head of the wastewater treatment equipment will also be required to increase the cost of this part. Utility Model Content
[0003] To address the issue of excessive burial depth of sewage treatment equipment, this invention provides a booster pump station device that reduces the burial depth of sewage treatment equipment. A small booster pump station is set up at the front end of the sewage treatment equipment inlet to eliminate the adverse effects caused by excessive burial depth of the sewage treatment equipment.
[0004] The technical solution adopted in this utility model is: A booster pump station device for reducing the burial depth of sewage treatment equipment includes a booster pump station well, in which a submersible sewage pump and a matching liquid level control device are installed; the depth of the booster pump station well is 3-6 meters (i.e., the distance from the bottom of the well to the ground level), and a domestic sewage inlet is provided in the middle of the booster pump station well, which is connected to a domestic sewage pipeline; the outlet pipe of the submersible sewage pump is connected to the sewage treatment equipment; the sewage treatment equipment includes a treatment tank, the outlet pipe of the submersible sewage pump is connected to the upper end of the treatment tank, and a manhole is provided at the top of the treatment tank.
[0005] The treatment tank includes an equalization tank, an anaerobic tank, an aerobic tank, an MBR tank, and a clear water tank connected in sequence. The wastewater treatment equipment involved in this utility model is a whole, including the above-mentioned treatment tank. Wastewater enters from the equalization tank, undergoes a series of treatments, and is discharged from the clear water tank. A return pipe is provided between the MBR tank and the anaerobic tank.
[0006] After the design of the pump station well was improved, the burial depth of the treatment pool was greatly increased. After the improvement, the distance between the top of the manhole and the top of the pool can be maintained at 450mm~550mm.
[0007] The liquid level control device includes a liquid level relay, a liquid level probe, and an AC contactor. The liquid level relay, as the control core, triggers a switch signal by detecting high or low water levels. The liquid level probe detects the water level through the conductivity of water. The contacts of the liquid level relay control the opening and closing of the AC contactor coil, thereby starting and stopping the submersible sewage pump. The submersible sewage pump body is connected to a power source through the main contacts of the AC contactor and is indirectly controlled by the liquid level relay. The opening and closing of the submersible sewage pump is controlled by the liquid level; it starts at high liquid levels and shuts down at low liquid levels. The pump body outlet pipe is connected to the inlet of the sewage treatment equipment at the top of the pumping station.
[0008] Furthermore, a filter screen is installed at the suction port of the submersible sewage pump, mainly to filter out large pieces of garbage and leave them in the well, which can be manually cleaned, thus avoiding the direct discharge of impurities into the sewage treatment equipment.
[0009] This utility model designs a booster pump station device. The pump station's depth allows it to collect sewage discharged from all domestic wastewater discharge points within the entire factory area. Domestic sewage flows by gravity into the pump station well for centralized collection. When the sewage level in the well approaches the inlet, it is at a high level, and the submersible pump starts, pumping the sewage through connecting pipes into the wastewater treatment equipment. The submersible pump continuously transports sewage to the treatment equipment, causing the sewage level in the well to decrease. When the level falls below the pump's suction inlet, it is at a low level, and the pump shuts off. The wastewater treatment equipment collects sewage from the booster pump well and processes it through an anaerobic tank, an aerobic tank, and an MBR (Medium-Range Bioreactor) tank. After treatment, the treated water flows by gravity into a clear water tank for reuse, such as for car washing and landscaping, achieving water resource recycling.
[0010] The beneficial effects of this utility model are as follows: (1) By setting up a booster pump station at the front end of the sewage treatment equipment, the burial depth of the sewage inlet of the sewage treatment equipment can be increased, so that the sewage treatment equipment is raised as a whole, reducing the soil cover thickness on the top of the equipment, reducing the production cost of the equipment, and reducing the overall investment burden of the project. (2) As the burial depth of the sewage treatment equipment becomes shallower, the length of the manhole on the top of the equipment becomes shorter, which makes it easier for workers to enter the sewage treatment equipment to carry out equipment inspection and maintenance work, and can also reduce the safety hazards caused by excessively long manholes. (3) Sludge, garbage or other impurities in the domestic sewage pipes will first flow into the lift pump station well at the front end of the sewage treatment equipment. The garbage can be collected in the pump station well and manually cleaned regularly to reduce the impurities entering the sewage treatment equipment and improve the service life of the sewage treatment equipment.
[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of the lifting pump station device for reducing the burial depth of sewage treatment equipment according to this utility model. Figure 2 for Figure 1 Top view.
[0013] In the diagram: 1 is a submersible sewage pump, 2 is the domestic sewage inlet, 3 is the submersible sewage pump pipeline, 4 is a rigid waterproof sleeve, 5 is the manhole cover of the booster pump station, 6 is the sewage treatment equipment inlet, 7 is the sewage treatment equipment manhole, 8 is the equalization tank, 9 is the anaerobic tank, 10 is the aerobic tank, 11 is the MBR tank, 12 is the clear water tank, 13 is the sewage treatment equipment outlet, 14 is the return pipe, and 15 is the booster pump station well. Detailed Implementation Example
[0014] In existing processes, wastewater treatment equipment is buried several meters deep, meaning the manholes are also several meters deep, which makes manual operation inconvenient.
[0015] like Figures 1-2 As shown, the lifting pump station device for reducing the burial depth of sewage treatment equipment provided by this utility model includes a lifting pump station well 15, in which a submersible sewage pump 1 and a matching liquid level control device are installed; the depth of the lifting pump station well 15 is 3~6 meters (i.e., the distance from the bottom of the well to the ground plane), and a domestic sewage inlet 2 is provided in the middle of the lifting pump station well 15, which is connected to a domestic sewage pipe. The outlet pipe of the submersible sewage pump 1 is connected to the sewage treatment equipment inlet 6 through a rigid waterproof sleeve 4; the sewage treatment equipment includes a treatment water tank, and the outlet pipe of the submersible sewage pump 1 is connected to the upper end of the treatment water tank. A sewage treatment equipment manhole 7 is provided at the top of the treatment water tank.
[0016] The treatment tank includes an equalization tank 8, an anaerobic tank 9, an aerobic tank 10, an MBR tank 11, and a clear water tank 12 connected in sequence. The wastewater treatment equipment involved in this utility model is a whole, including the above-mentioned treatment tanks. Wastewater enters from the equalization tank 8, undergoes a series of treatments, and is discharged from the clear water tank 12 along the wastewater treatment equipment drain outlet 13. A return pipe 14 is provided between the MBR tank 11 and the anaerobic tank 9.
[0017] After the design of the pump station well 15 was improved, the burial depth of the treatment pool was greatly increased. After the improvement, the distance between the manhole 7 of the sewage treatment equipment and the top of the pool can be maintained at 500mm (the distance measured from the top of the manhole).
[0018] The liquid level control device includes a liquid level relay, a liquid level probe, and an AC contactor. The liquid level relay, as the control core, triggers a switch signal by detecting high or low water levels. The liquid level probe detects the water level through the conductivity of water. The contacts of the liquid level relay control the opening and closing of the AC contactor coil, thereby starting and stopping the submersible sewage pump. The submersible sewage pump body is connected to a power source through the main contacts of the AC contactor and is indirectly controlled by the liquid level relay. The opening and closing of the submersible sewage pump is controlled by the liquid level; it starts at high liquid levels and shuts down at low liquid levels. The pump body outlet pipe is connected to the inlet of the sewage treatment equipment at the top of the pumping station.
[0019] Furthermore, a filter screen is installed at the suction port of the submersible sewage pump, mainly to filter out large pieces of garbage and leave them in the well, which can be manually cleaned, thus avoiding the direct discharge of impurities into the sewage treatment equipment.
[0020] The specific usage of this utility model is as follows: The lifting pump station device designed in this utility model has a depth that can collect sewage discharged from the entire factory's domestic sewage discharge points. Domestic sewage flows into the pump station well by gravity, completing centralized collection. When the sewage level in the well is close to the sewage inlet (i.e., the inlet where sewage flows into the lifting pump station well, which must be higher than the suction inlet of the submersible sewage pump, which is generally located at the bottom of the well), it is at a high level. The submersible sewage pump starts, pumping the domestic sewage from the pump station well into the sewage treatment equipment through connecting pipes for treatment. As the submersible sewage pump operates, it continuously transports sewage to the sewage treatment equipment, and the sewage level in the pump station well continuously decreases. When the sewage level in the pump station well is lower than the suction inlet of the submersible sewage pump, it is at a low level, and the submersible sewage pump shuts down. After collecting the sewage from the lifting pump station well, the sewage treatment equipment processes it through an anaerobic tank, an aerobic tank, and an MBR tank. After wastewater treatment, the treated water flows by gravity into a clear water tank for reuse, such as for car washing and landscaping, thus realizing the reuse of water resources.
Claims
1. A booster pump station device for reducing the burial depth of sewage treatment equipment, characterized in that: The system includes a booster pump station well, which houses a submersible sewage pump and a corresponding level control device. The booster pump station well is 3 to 6 meters deep. A domestic sewage inlet is located in the middle of the booster pump station well, which is connected to a domestic sewage pipeline. The outlet pipe of the submersible sewage pump is connected to sewage treatment equipment. The sewage treatment equipment includes a treatment tank. The outlet pipe of the submersible sewage pump is connected to the upper end of the treatment tank. A manhole for the sewage treatment equipment is located at the top of the treatment tank.
2. The booster pump station device for reducing the burial depth of sewage treatment equipment according to claim 1, characterized in that: The treatment tank includes an equalization tank, an anaerobic tank, an aerobic tank, an MBR tank, and a clear water tank connected in sequence; a return pipe is provided between the MBR tank and the anaerobic tank.
3. The booster pump station device for reducing the burial depth of sewage treatment equipment according to claim 1, characterized in that: The distance between the manhole of the sewage treatment equipment at the top of the water tank and the top of the water tank is 450mm~550mm.
4. The booster pump station device for reducing the burial depth of sewage treatment equipment according to claim 1, characterized in that: The liquid level control device includes a liquid level relay, a liquid level probe, and an AC contactor; the opening and closing of the submersible pump is controlled by the liquid level.
5. The booster pump station device for reducing the burial depth of sewage treatment equipment according to claim 1, characterized in that: Install a filter screen at the suction inlet of the submersible sewage pump.