Intelligent anti-submerging protection system for sunken pump station
By introducing an overflow pool and submersible pumps into the submerged pumping station, combined with an intelligent control system, the problem of equipment layer flooding was solved, achieving safe protection and efficient operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 温州市排水有限公司
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-26
AI Technical Summary
When the inflow rate of an existing submersible pumping station exceeds the delivery rate of the submersible pump set, the equipment layer is easily submerged, leading to equipment damage and unstable operation.
An overflow tank and a submersible pump are introduced into the pumping station. Excess fluid is directed into the overflow tank through the overflow channel and then recovered to the pump pool by the submersible pump. Combined with multiple water level sensors and an uninterruptible power supply, intelligent control and protection are achieved.
It effectively avoids flooding of equipment layers, reduces equipment damage, improves system intelligence and reliability, reduces water waste, and simplifies maintenance and reduces the lag in manual operation.
Smart Images
Figure CN224412771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage systems, specifically to an intelligent flood protection system for submerged pumping stations. Background Technology
[0002] A submerged pumping station is a drainage, water supply, or sewage treatment facility that lowers its main equipment and structure below ground level. Its core design principle is to reduce the space occupied on the ground, optimize hydraulic conditions, and adapt to specific terrain or engineering requirements by utilizing the submerged structure.
[0003] The existing submerged pumping station includes an intake pool, a pump pool, a submersible pump set, and an equipment layer. The intake pool is used to collect the fluid to be treated. The intake pool is equipped with an intake pipe that flows the fluid to the pump pool. The intake pipe is equipped with an intake gate to control the opening and closing of the intake pipe. The submersible pump set is located at the bottom of the pump pool and pressurizes and transports the fluid through a delivery pipe to the discharge pipe or treatment system. The equipment layer is located above the pump pool and is equipped with a control cabinet to control the intake gate and the submersible pump set.
[0004] When the water inlet rate of the inlet pipe is greater than the delivery rate of the submersible pump set, the water level in the pump pool will gradually rise. In order to prevent the equipment in the equipment layer from being submerged by the fluid and causing damage, a high water level sensor is often installed near the pool opening. When the water level rises and triggers the high water level sensor, the control cabinet will control the inlet gate to cut off the inlet pipe.
[0005] However, due to the limited closing speed of the inlet gate, there is still a possibility that the equipment layer may be flooded due to the excessively fast water inflow rate from the start of closure to complete closure, resulting in economic losses and affecting the subsequent stable operation of the pumping station. Utility Model Content
[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an intelligent flood protection system for submerged pumping stations that reduces the possibility of equipment layer being flooded.
[0007] To achieve the above objectives, this utility model provides the following technical solution: It includes an inlet pool, a pump pool, a submersible pump set, and an equipment layer. The inlet pool is used to collect the fluid to be treated. The inlet pool is equipped with an inlet pipe that directs the fluid to the pump pool. The inlet pipe is equipped with an inlet gate to control the opening and closing of the inlet pipe. The submersible pump set is located at the bottom of the pump pool and includes multiple submersible pumps. Each submersible pump pressurizes and transports the fluid through a delivery pipe to a discharge pipe or treatment system. The equipment layer is located above the pump pool and is equipped with a control cabinet. The pump pool is equipped with a high-level sensor near the pool opening, which controls the inlet gate to cut off the inlet pipe when the water level is higher than the trigger water level. The feature is that it also includes an overflow pool, which is arranged side-by-side with the pump pool. An overflow channel connecting the overflow pool and the pump pool is located above the high-level sensor. A submersible pump is located at the bottom of the overflow pool, and a recovery pipe for transporting the fluid back to the pump pool is located at the outlet of the submersible pump.
[0008] By adopting the above technical solution, when the water inlet rate of the inlet pipe is greater than the delivery rate of the submersible pump set, the water level in the pump pool will gradually rise until it triggers the high water level sensor. At the same time as the high water level sensor is triggered, the inlet gate is controlled to close. During the process of closing the inlet gate, the water level continues to rise and overflows into the overflow pool through the overflow channel, preventing the water level from rising too quickly and flooding the equipment layer, until the inlet gate is completely closed, greatly reducing the possibility of the equipment layer being flooded. Afterward, the submersible pump set continues to work, and the water level in the pump pool continues to decrease. The submersible pump then recovers the fluid to the pump pool through the recovery pipe, avoiding water waste and ensuring that the overflow pool is in a waterless state when idle, in order to cope with the next emergency. In addition, compared with the submersible pump, the submersible pump is more suitable for long-term waterless operation, and the main unit of the submersible pump is located in the equipment layer, reducing the difficulty of circuit connection, maintenance and failure rate.
[0009] The present invention is further configured such that: the recovery pipe is in the shape of an inverted U, including a horizontal section at the top and a first vertical section and a second vertical section located on both sides of the horizontal section respectively; the lower end of the first vertical section is connected to the output end of the submersible pump and the upper end extends to the equipment layer; the horizontal section extends from above the overflow pool to above the pump pool; and the lower end of the second vertical section extends into the pump pool.
[0010] By adopting the above technical solution, compared with the recovery pipe that is directly opened from the wall at the bottom of the overflow pool to the pump pool, choosing a U-shaped recovery pipe that passes through the equipment layer avoids the water pressure of the fluid in the pump pool from interfering with the recovery efficiency. On the other hand, this structure is easier to disassemble and maintain.
[0011] The present invention is further configured such that: a low water level sensor is provided in the pump pool near the submersible pump group to control the submersible pump group to stop when the water level is lower than the trigger water level; a recovery water level sensor is provided in the pump pool between the high water level sensor and the low water level sensor to control the submersible pump to start when the water level is lower than the trigger water level; and a shutdown water level sensor is provided in the overflow pool near the bottom to control the submersible pump to stop when the water level is lower than the trigger water level.
[0012] By adopting the above technical solution, after the inlet gate is completely closed, the submersible pump set continues to work, and the water level in the pump pool begins to drop. When the water level in the pump pool drops and triggers the recovery water level sensor, the submersible pump starts, transporting the fluid in the overflow pool back to the pump pool through the recovery pipe, and the water level in the overflow pool drops simultaneously. When the water level in the overflow pool drops and triggers the shutdown water sensor, the submersible pump stops running. When the water level in the pump pool drops and triggers the low water level sensor, the submersible pump set stops running, waiting for the instruction to start after the inlet gate is reopened. The process of the submersible pump draining the overflow pool is completed during the process of the submersible pump set draining the pump pool. The cooperation of multiple water level sensors further improves the intelligence of this system and reduces the lag of manual operation.
[0013] The present invention is further configured such that: the water inlet pipe is located below the overflow pool, and the manual control end of the water inlet gate is located at the bottom of the overflow pool.
[0014] By adopting the above technical solution, the inlet gate is generally a manual-automatic integrated structure. That is, in addition to being controlled remotely via circuit, it can also be controlled manually by the manual control terminal to deal with sudden power failure or power outage maintenance. Since the overflow pool is continuously in a dry state in non-emergency situations, the position of the inlet pipe is reasonably arranged so that the manual control terminal of the inlet gate that controls the opening and closing of the inlet pipe is designed to be at the bottom of the overflow pool. This also gives the overflow pool the function of a manual valve operation well, making reasonable use of space and making the structure more streamlined.
[0015] The present invention is further configured such that: the bottom of the overflow pool is provided with a protrusion for the manual control end of the inlet gate to prevent residual fluid from submerging the inlet gate.
[0016] By adopting the above technical solution, the submersible pump is limited by its structural design and cannot completely remove the fluid from the bottom of the overflow pool. Manual cleaning is required. Therefore, a protrusion is added to collect the residual fluid around the protrusion, thereby reducing the time that the residual fluid submerges the manual control end of the inlet gate and extending the service life of the manual control end of the inlet gate.
[0017] The present invention is further configured such that: the equipment layer is provided with an uninterruptible power supply connected to the mains power, and the circuit between the uninterruptible power supply and the mains power is provided with a mains power on / off monitoring module.
[0018] By adopting the above technical solution and adding an uninterruptible power supply (UPS), in the event of a sudden mains power outage, the UPS can also provide the power required to close the water inlet gate in a timely manner, thereby further reducing the possibility of the equipment floor being flooded. At the same time, the mains power on / off monitoring module can also provide the controller in the controller with a timely signal to control the water inlet gate to cut off the water inlet pipe, further improving the intelligence of the system and reducing the lag of manual operation. Attached Figure Description
[0019] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model. Detailed Implementation
[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] like Figure 1As shown, this utility model discloses an intelligent flood protection system for a submerged pumping station, including an intake pool 1, a pump pool 2, a submersible pump set 5, and an equipment layer 3. The intake pool 1 is used to collect the fluid to be treated. The intake pool 1 is equipped with an inlet pipe 4 that directs the fluid to the pump pool 2. The inlet pipe 4 is equipped with an inlet gate 41 that controls the opening and closing of the inlet pipe 4. The submersible pump set 5 is located at the bottom of the pump pool 2 and includes multiple submersible pumps 51. Each submersible pump 51 pressurizes and transports the fluid through a conveying pipe 52 to a discharge pipe or treatment system. The equipment layer 3 is located above the pump pool 2 and is equipped with... A control cabinet 31 is provided, containing a controller, circuit breaker, display screen, and alarm module. The controller is used to control the coordinated operation of various electrical control devices and sensors. The control cabinet 31 and the uninterruptible power supply 32 mentioned below are located on the ground around the pump pool 2, not directly above it. A high water level sensor 21 is installed near the pool opening of the pump pool 2, which controls the inlet gate 41 to cut off the inlet pipe 4 when the water level is higher than the trigger water level. The pump pool 2 also includes an overflow pool 6, which is arranged side by side with the pump pool 2. The overflow pool 6 is located above the high water level of the pump pool 2. An overflow channel 61 connecting the level sensor 21 and the submersible pump 62 is installed at the bottom of the overflow pool 6. A recovery pipe 63 is installed at the outlet of the submersible pump 62 to transport fluid back to the pump pool 2. When the water inlet rate of the inlet pipe 4 is greater than the delivery rate of the submersible pump set 5, the water level in the pump pool 2 will gradually rise until it triggers the high water level sensor 21. At the same time as the high water level sensor 21 is triggered, the inlet gate 41 is closed. During the closing of the inlet gate 41, the water level continues to rise and overflows into the overflow pool 6 through the overflow channel 61, preventing the water level from rising too quickly and flooding the area. Equipment layer 3 is maintained until the inlet gate 41 is completely closed, greatly reducing the possibility of equipment layer 3 being flooded; then, the submersible pump group 5 continues to work, the water level of pump pool 2 continues to decrease, and the submersible pump 62 recovers the fluid to pump pool 2 through the recovery pipe 63, avoiding water waste while ensuring that the overflow pool 6 is in a waterless state when idle, in order to deal with the next emergency. In addition, compared with the submersible pump 51, the submersible pump 62 is more suitable for long-term waterless operation, and the main unit of the submersible pump 62 is located in equipment layer 3, reducing the difficulty of circuit connection, maintenance and failure rate.
[0023] The recovery pipe 63 is in an inverted U-shape, including a horizontal section 631 at the top and a first vertical section 632 and a second vertical section 633 on both sides of the horizontal section 631. The lower end of the first vertical section 632 is connected to the output end of the submersible pump 62, and the upper end extends to the equipment layer 3. The horizontal section 631 extends from above the overflow pool 6 to above the pump pool 2. The lower end of the second vertical section 633 extends into the pump pool 2. Compared with the recovery pipe 63 that is opened directly from the wall at the bottom of the overflow pool 6 to the pump pool 2, the U-shaped recovery pipe 63 that passes through the equipment layer 3 is chosen. On the one hand, it avoids the water pressure of the fluid in the pump pool 2 from interfering with the recovery efficiency. On the other hand, this structure is easier to disassemble and maintain.
[0024] A low-water-level sensor 22 is installed in the pump pool 2 near the submersible pump group 5 to control the submersible pump group 5 to stop when the water level falls below the trigger level. A recovery water-level sensor 23 is installed in the pump pool 2 between the high-water-level sensor 21 and the low-water-level sensor 22 to control the submersible pump 62 to start when the water level falls below the trigger level. A shutdown water-level sensor 64 is installed near the bottom of the overflow pool 6 to control the submersible pump 62 to stop when the water level falls below the trigger level. After the inlet gate 41 is completely closed, the submersible pump group 5 continues to work, and the water level in the pump pool 2 begins to drop. When the water level in the pump pool 2 drops and triggers the recovery water-level sensor 23, the submersible pump 62... The system starts up, and the fluid in the overflow pool 6 is transported back to the pump pool 2 through the recovery pipe 63, while the water level in the overflow pool 6 drops simultaneously. When the water level in the overflow pool 6 drops and triggers the shutdown water level sensor 64, the submersible pump 62 stops running. When the water level in the pump pool 2 drops and triggers the low water level sensor 22, the submersible pump group 5 stops running, waiting for the instruction to restart the submersible pump group 5 after the inlet gate 41 is reopened. The process of the submersible pump 62 draining the overflow pool 6 is completed during the drainage process of the submersible pump group 5 to the pump pool 2. The cooperation of multiple water level sensors further improves the intelligence of this system and reduces the lag of manual operation.
[0025] The inlet pipe 4 is located below the overflow pool 6, and the manual control terminal 411 of the inlet gate 41 is located at the bottom of the overflow pool 6. The inlet gate 41 is generally a manual-automatic integrated structure, that is, in addition to being controlled remotely through the circuit, it can also be controlled manually by the manual control terminal to deal with sudden power failure or power outage maintenance. Since the overflow pool 6 is continuously in a dry state in non-emergency situations, the position of the inlet pipe 4 is reasonably arranged so that the manual control terminal 411 of the inlet gate 41 that controls the opening and closing of the inlet pipe 4 is designed to be at the bottom of the overflow pool 6. This also gives the overflow pool 6 the function of a valve manual operation well, making reasonable use of space and making the structure more streamlined.
[0026] The bottom of the overflow pool 6 is provided with a protrusion 65 to prevent residual fluid from submerging the manual control end of the inlet gate 41. Due to the structural design of the submersible pump 62, the submersible pump 62 cannot completely pump out the fluid at the bottom of the overflow pool 6, and manual cleaning is required. Therefore, the protrusion 65 is added to collect the residual fluid around the protrusion 65, reduce the time when the residual fluid submerges the manual control end of the inlet gate 41, and extend the service life of the manual control end of the inlet gate 41.
[0027] Equipment layer 3 is equipped with an uninterruptible power supply (UPS) 32 connected to the mains power. A mains power continuity monitoring module is installed on the circuit between the UPS 32 and the mains power. With the addition of the UPS 32, in the event of a sudden mains power failure, the UPS 32 can also provide the power required to close the water inlet gate 41 in a timely manner, thereby further reducing the possibility of equipment layer 3 being flooded. At the same time, the mains power continuity monitoring module can also provide the controller in the controller with a signal to control the water inlet gate 41 to cut off the water inlet pipe 4 in a timely manner, further improving the intelligence of this system and reducing the lag of manual operation. The mains power continuity monitoring module can be placed externally on the circuit or integrated into the UPS 32.
[0028] In addition, ladders 7 for going up and down are provided in equipment floor 3, overflow pool 6 and pump pool 2.
Claims
1. An intelligent flood protection system for a submerged pumping station, comprising an intake pool, a pump pool, a submersible pump set, and an equipment layer, wherein the intake pool is used to collect fluid to be treated, the intake pool is provided with an intake pipe that directs the fluid to the pump pool, the intake pipe is provided with an intake gate for controlling the opening and closing of the intake pipe, the submersible pump set is located at the bottom of the pump pool and includes multiple submersible pumps, each of which pressurizes and transports the fluid through a delivery pipe to a discharge pipe or treatment system, the equipment layer is located above the pump pool and is provided with a control cabinet, and the pump pool is provided with a high water level sensor located near the pool opening that controls the intake gate to cut off the intake pipe when the water level is higher than the trigger water level, characterized in that: It also includes an overflow pool, which is arranged side by side with the pump pool. An overflow channel connecting the overflow pool and the pump pool is provided at a position higher than the high water level sensor. A submersible pump is provided at the bottom of the overflow pool, and a recovery pipe for transporting fluid back to the pump pool is provided at the outlet of the submersible pump.
2. The intelligent flood protection system for submerged pumping stations according to claim 1, characterized in that: The recovery pipe is in the shape of an inverted U, including a horizontal section at the top and a first vertical section and a second vertical section located on both sides of the horizontal section. The lower end of the first vertical section is connected to the output end of the submersible pump, and the upper end extends to the equipment layer. The horizontal section extends from above the overflow pool to above the pump pool, and the lower end of the second vertical section extends into the pump pool.
3. The intelligent flood protection system for submerged pumping stations according to claim 1, characterized in that: The pump pool is equipped with a low water level sensor located near the submersible pump unit, which controls the submersible pump unit to stop when the water level is below the trigger level. The pump pool is equipped with a recovery water level sensor located between the high water level sensor and the low water level sensor, which controls the submersible pump to start when the water level is below the trigger level. The overflow pool is equipped with a shutdown water level sensor located near the bottom, which controls the submersible pump to stop when the water level is below the trigger level.
4. The intelligent flood protection system for submerged pumping stations according to claim 1, characterized in that: The water inlet pipe is located below the overflow pool, and the manual control end of the water inlet gate is located at the bottom of the overflow pool.
5. The intelligent flood protection system for submerged pumping stations according to claim 4, characterized in that: The bottom of the overflow pool is provided with a protrusion to prevent residual fluid from submerging the manual control end of the inlet gate.
6. The intelligent flood protection system for submerged pumping stations according to claim 1, characterized in that: The equipment layer is equipped with an uninterruptible power supply (UPS) connected to the mains power, and the circuit between the UPS and the mains power is equipped with a mains power on / off monitoring module.