Basement pressure-limiting drainage device

Abstract

The utility model discloses a basement pressure-limiting drainage device, belongs to the technical field of basement anti-floating drainage, and solves the problem that an existing basement drainage device cannot automatically drain water. The system comprises a basement, a water-collecting well located at the bottom of the basement, an underground water monitoring well communicated with a water inlet pipe of the water-collecting well, a water pump communicated with a water outlet pipe of the water-collecting well, and a control cabinet electrically connected with the water pump. A first liquid level sensor and a second liquid level sensor are respectively arranged in the water collecting well and the underground water monitoring well; an electric control valve is arranged on a water inlet pipe of the water-collecting well. Water in the water-collecting well can be automatically drained without being attended, when the first liquid level sensor detects that the underground water level in the underground water monitoring well reaches the set height, the control cabinet opens the electric control valve, and the water in the underground water monitoring well flows into the water-collecting well; when the second liquid level sensor detects that the water level of the water collecting well reaches the set drainage height, the control cabinet starts the water pump to automatically drain water.

Description

Technical Field

[0001] This utility model relates to the field of anti-buoyancy drainage technology for basements, specifically to a pressure-limiting drainage device for basements. Background Technology

[0002] Since basements are located underground, when the groundwater level is higher than the floor level of the basement, the groundwater will exert buoyancy on the basement. This buoyancy can damage the foundation of the building. Therefore, basements are usually designed with anti-buoyancy drainage.

[0003] For example, Chinese patent CN214994146U discloses an anti-buoyancy structure for basements, which includes a basement floor slab and a sump pit. The sump pit is equipped with a drainage component, which includes a water inlet pipe that is vertically fixed through the bottom wall of the sump pit. The water inlet pipe is connected to the groundwater below the basement floor slab. The top of the water inlet pipe is closed and the bottom is open. The water inlet pipe has an inlet hole on its body located in the sump pit. A sealing ring slides inside the water inlet pipe and is in close contact with the water inlet pipe. The sealing ring is connected to a pull line, which passes through the top of the water inlet pipe and is connected to a float. An outlet pipe is also fixedly installed on the bottom wall of the sump pit, and a drain valve is installed on the outlet pipe.

[0004] This patent achieves self-sealing through a drainage component, thereby limiting the maximum water inflow into the sump and reducing the possibility of groundwater in the sump flooding into the basement. However, it requires staff to manually open the drainage valve to drain the water, and cannot drain automatically. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides a basement pressure-limiting drainage device, which solves the problem that existing basement drainage devices cannot drain water automatically.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A basement pressure limiting drainage device is provided, comprising a basement, a sump located at the bottom of the basement, a groundwater monitoring well connected to the inlet pipe of the sump, a water pump connected to the outlet pipe of the sump, and a control cabinet electrically connected to the water pump; a float level switch electrically connected to the water pump is installed in the sump; a first level sensor and a second level sensor are respectively installed in the sump and the groundwater monitoring well; an electrically controlled valve is installed on the inlet pipe of the sump; and the control cabinet is electrically connected to the first level sensor, the second level sensor, and the electrically controlled valve.

[0008] The working principle of this solution is as follows: when the first liquid level sensor detects that the groundwater level in the groundwater monitoring well has reached the set height, the control cabinet opens the electrically controlled valve, and water from the groundwater monitoring well flows into the collection well. When the second liquid level sensor detects that the water level in the collection well has reached the set drainage height, the control cabinet starts the water pump to drain the water. Simultaneously, to prevent the second liquid level sensor from detecting the height incorrectly, a float-type liquid level switch is used to directly trigger the water pump based on the water level, thus preventing overflow from the collection well. Compared to existing technologies, this solution can automatically drain water without human intervention.

[0009] Furthermore, the intake pipe of the sump extends upwards at an angle to connect with the groundwater monitoring well. This angled design helps reduce sediment accumulation within the intake pipe. As groundwater flows through the intake pipe, its flow properties help carry away any particles or sediments, reducing the potential blockages caused by these substances settling at the bottom of the pipe.

[0010] Furthermore, the inclination angle of the water inlet pipe of the water collection well is 45° to 60°.

[0011] Furthermore, a flow meter and a pressure transmitter are installed on the outlet pipe of the water collection well, and the control cabinet is electrically connected to the flow meter and the pressure transmitter respectively. The installation of the flow meter and the pressure transmitter makes it convenient for the control cabinet to obtain the flow rate and pressure of the water pump, so as to control the water pump to maintain a stable pressure and flow level and automatically adjust the speed or on / off status of the water pump.

[0012] Furthermore, the basement is equipped with surveillance cameras and infrared alarms; the control cabinet is electrically connected to both the cameras and the alarms. When someone illegally enters the basement, the infrared alarm will sound, and the surveillance camera will take a picture.

[0013] Furthermore, the control cabinet is equipped with a smart meter that is electrically connected to the water pump. The control cabinet can obtain information about the water pump's operating current, voltage, and power consumption through the smart meter.

[0014] Furthermore, the control cabinet is communicatively connected to the monitoring center of the booster pump station located outside the basement. The control cabinet can collect information such as the pump's operating current, voltage, power consumption, outlet water pressure, and outlet water flow rate, and transmit this information to the booster pump station monitoring center for data management and monitoring.

[0015] Furthermore, a filter screen is installed at the water pump inlet. The filter screen can block larger solids and debris, protecting the pump impeller and other internal components from damage.

[0016] Furthermore, the float level switch is fixed to the top of the side wall of the sump. As an automatic water level trigger switch, the float level switch can directly trigger the water pump to start, preventing the water level in the sump from overflowing due to the failure of the second level gauge.

[0017] Furthermore, the volume of the sump is 2 to 3 times that of the groundwater monitoring well. A larger sump can accommodate more drainage equipment, such as pumps, and allows for more effective water level control. This helps to quickly lower the groundwater level and reduce potential threats to basements or foundations. Increasing the sump volume also provides better buffering capacity to cope with sudden increases in water levels caused by rainfall or rising groundwater levels.

[0018] This utility model discloses a pressure-limiting drainage device for basements, the beneficial effects of which are:

[0019] This invention can automatically drain water from the collection well without human intervention. When the first liquid level sensor detects that the groundwater level in the groundwater monitoring well has reached the set height, the control cabinet opens the electric control valve, and the water from the groundwater monitoring well flows into the collection well. When the second liquid level sensor detects that the water level in the collection well has reached the set drainage height, the control cabinet starts the water pump to automatically drain the water. Attached Figure Description

[0020] Figure 1 A schematic diagram of a pressure-limiting drainage device for a basement.

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] The components include: 1. Basement; 2. Groundwater monitoring well; 3. Sump well; 31. Inlet pipe; 32. Outlet pipe; 4. First liquid level sensor; 5. Second liquid level sensor; 6. Water pump; 7. Float level switch; 8. Control cabinet; 9. Infrared alarm; 10. Monitor. Detailed Implementation

[0023] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0024] refer to Figure 1 and Figure 2 This embodiment provides a pressure limiting drainage device for a basement 1, including a basement 1, a water collection well 3 located at the bottom of the basement 1, a groundwater monitoring well 2 connected to the water inlet pipe 31 of the water collection well 3, a water pump 6 connected to the water outlet pipe 32 of the water collection well 3, and a control cabinet 8 electrically connected to the water pump 6.

[0025] The water collection well 3 and the groundwater monitoring well 2 are respectively equipped with a first liquid level sensor 4 and a second liquid level sensor 5; the water inlet pipe 31 of the water collection well 3 is equipped with an electric control valve; the control cabinet 8 is electrically connected to the first liquid level sensor 4, the second liquid level sensor 5 and the electric control valve respectively.

[0026] A float level switch 7, electrically connected to the water pump 6, is installed inside the water collection well 3. The float level switch 7 is fixed to the top of the side wall of the water collection well 3. As an automatic water level trigger switch, the float level switch 7 can directly trigger the water pump 6 to start, preventing the water level in the water collection well 3 from overflowing due to the failure of the second level gauge.

[0027] A filter screen is installed at the inlet of water pump 6. The filter screen can block larger solids and debris, protecting the impeller and other internal components of water pump 6 from damage.

[0028] In this embodiment, when the first liquid level sensor 4 detects that the groundwater level in the groundwater monitoring well 2 has reached a set height, the control cabinet 8 opens the electrically controlled valve, and the water in the groundwater monitoring well 2 flows into the collection well 3. When the second liquid level sensor 5 detects that the water level in the collection well 3 has reached a set drainage height, the control cabinet 8 starts the water pump 6 to drain the water. Simultaneously, to prevent the second liquid level sensor 5 from detecting the height incorrectly, a float-type liquid level switch 7 is used to directly trigger the water pump 6 based on the water level, thus preventing overflow from the collection well 3. Compared to existing technologies, this solution allows for automatic drainage without human intervention.

[0029] Preferably, but not limited to, in this embodiment, the volume of the sump well 3 is 2 to 3 times the volume of the groundwater monitoring well 2. A larger sump well 3 can accommodate more drainage equipment, such as the water pump 6, and allows for more effective water level control. This helps to quickly lower the groundwater level and reduce potential threats to the basement 1 or foundation. At the same time, increasing the volume of the sump well 3 can provide better buffering capacity to cope with sudden increases in water levels caused by rainfall or rising groundwater levels.

[0030] As a further embodiment, the inlet pipe 31 of the water collection well 3 extends upward at an angle and connects to the groundwater monitoring well 2. The inclination angle of the inlet pipe 31 of the water collection well 3 is 45° to 60°.

[0031] The inclined inlet pipe 31 helps reduce the accumulation of sediment in it. As groundwater flows through the inlet pipe 31, its flow properties help carry away any particles or sediments, reducing the potential blockages that may occur if these substances accumulate at the bottom of the inlet pipe 31.

[0032] As a further embodiment, the control cabinet 8 is fixed in the basement 1. The controller of the control cabinet 8 is a PLC, an ARM chip, or a computer, preferably a PLC. The control cabinet 8 is electrically connected to the flow meter, pressure transmitter, monitor 10, infrared alarm 9, and smart meter.

[0033] The flow meter and pressure transmitter are installed on the outlet pipe 32 of the water collection well 3. The installation of the flow meter and pressure transmitter makes it convenient for the control cabinet 8 to obtain the flow rate and pressure of the water pump 6, so as to control the water pump 6 to maintain a stable pressure and flow level and automatically adjust the speed or on / off status of the water pump 6.

[0034] The monitor 10 and the infrared alarm 9 are installed in the basement 1; the control cabinet 8 is electrically connected to the monitor 10 and the infrared alarm 9 respectively. When someone illegally enters the basement, the infrared alarm 9 will sound an alarm, and the monitor 10 will take a picture at the same time.

[0035] The smart meter is installed inside the control cabinet 8 and is electrically connected to the water pump 6. The control cabinet 8 can obtain information on the operating current, voltage, and power consumption of the water pump 6 through the smart meter.

[0036] Meanwhile, the control cabinet 8 in this implementation is communicatively connected to the monitoring center of the booster pump station located outside the basement 1. The control cabinet 8 can transmit information such as the operating current, voltage, power consumption, outlet water pressure, and outlet water flow of the water pump 6 to the monitoring center of the booster pump station for data management and monitoring.

[0037] Although the specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of this patent.

Claims

1. A basement pressure-limiting drainage device, characterized in that, Includes a basement (1), a water collection well (3) located at the bottom of the basement (1), a groundwater monitoring well (2) connected to the water inlet pipe (31) of the water collection well (3), a water pump (6) connected to the water outlet pipe (32) of the water collection well (3), and a control cabinet (8) electrically connected to the water pump (6). The water collection well (3) is equipped with a float level switch (7) that is electrically connected to the water pump (6); the water collection well (3) and the groundwater monitoring well (2) are respectively equipped with a first level sensor (4) and a second level sensor (5); the water inlet pipe (31) of the water collection well (3) is equipped with an electric control valve; the control cabinet (8) is electrically connected to the first level sensor (4), the second level sensor (5) and the electric control valve respectively.

2. The basement pressure-limiting drainage device according to claim 1, characterized in that, The inlet pipe (31) of the water collection well (3) extends upward at an angle and connects with the groundwater monitoring well (2).

3. The basement pressure-limiting drainage device according to claim 2, characterized in that, The inclination angle of the inlet pipe (31) of the water collection well (3) is 45° to 60°.

4. The basement pressure-limiting drainage device according to claim 1, characterized in that, A flow meter and a pressure transmitter are installed on the outlet pipe (32) of the water collection well (3), and the control cabinet (8) is electrically connected to the flow meter and the pressure transmitter respectively.

5. The basement pressure-limiting drainage device according to claim 4, characterized in that, The basement (1) is equipped with a monitor (10) and an infrared alarm (9); the control cabinet (8) is electrically connected to the monitor (10) and the infrared alarm (9) respectively.

6. The basement pressure-limiting drainage device according to claim 5, characterized in that, The control cabinet (8) is equipped with a smart meter that is electrically connected to the water pump (6).

7. The basement pressure-limiting drainage device according to claim 6, characterized in that, The control cabinet (8) is communicatively connected to the monitoring center of the booster pump station located outside the basement (1).

8. The basement pressure-limiting drainage device according to claim 1, characterized in that, A filter screen is installed on the inlet of the water pump (6).

9. The basement pressure-limiting drainage device according to claim 1, characterized in that, The float level switch (7) is fixed on the top of the side wall of the water collection well (3).

10. The basement pressure-limiting drainage device according to claim 1, characterized in that, The volume of the water collection well (3) is 2 to 3 times the volume of the groundwater monitoring well (2).

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