Airport ground well drainage system

Abstract

The utility model relates to an airport ground well drainage system, which is characterized in that a water collecting pit is arranged at the bottom of a well pit of a ground well, and the drainage system comprises a drainage pump, a first liquid level sensor, a second liquid level sensor, a drainage hose, a one-way check valve, a drainage embedded part and a ground well PLC (Programmable Logic Controller) control box, the drainage pump, the first liquid level sensor and the second liquid level sensor are all electrically connected with the ground well PLC control box, the drainage pump is arranged in a sump and connected with the one-way check valve through a drainage hose, the one-way check valve is connected with the drainage embedded part through the drainage hose, and therefore a drainage main loop of a ground well is formed. And water in the ground well is discharged into a ground airport apron or a drainage pipe network through the main loop. The two liquid level sensors are adopted, liquid level monitoring and water level offside monitoring can be achieved, meanwhile, fault alarm of the drainage pump can be achieved, and the normal working state of the drainage pump is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of drainage systems, specifically to an airport well drainage system. Background Technology

[0002] Airport manholes are underground facilities, typically located near aircraft stands and hangars. Because these manholes integrate energy supply equipment, their drainage stability and reliability are crucial compared to other surface-level equipment. Traditional drainage solutions can handle most manhole drainage problems, but the following issues have been identified during application: 1. The water level float on the pump is difficult to fix on-site and easily affected by environmental factors, leading to pump malfunctions or failure to trigger; 2. The water level detection function of the pump is incomplete, resulting in situations where the pump runs dry or malfunctions, making troubleshooting difficult; 3. When airport pumps discharge directly to the ground, surface drainage outlets are prone to blockage and maintenance is difficult. Therefore, there is an urgent need to propose an airport manhole drainage system to address the problems existing in current technologies. Utility Model Content

[0003] The purpose of this utility model is to provide an airport well drainage system to solve the above-mentioned technical problems in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An airport manhole drainage system includes a sump at the bottom of the manhole. The system comprises a drainage pump, a first level sensor, a second level sensor, a drainage hose, a one-way check valve, a drainage embedded component, and a manhole PLC control box. The drainage pump, the first level sensor, and the second level sensor are all electrically connected to the manhole PLC control box. The drainage pump is located in the sump. The drainage pump is connected to the one-way check valve via the drainage hose. The one-way check valve is connected to the drainage embedded component via the drainage hose, thus forming the main drainage circuit of the manhole. Water in the manhole is discharged to the ground apron or drainage network through this main circuit.

[0006] The first liquid level sensor is used to automatically monitor the liquid level in the sump. When the water level in the sump reaches the set water level of the liquid level sensor, the drainage pump is automatically started to smoothly discharge the water accumulated in the well.

[0007] The second liquid level sensor is used for water level overrun monitoring. It is set at a preset height above the well pit ground, and this preset height is adjustable. When the water level exceeds the set overrun water level, an overrun signal will be sent to the drainage pump, forcibly starting the drainage pump to drain water. The panel of the well PLC control box is equipped with a drainage pump fault alarm indicator and a water level overrun alarm. Both the drainage pump fault alarm indicator and the water level overrun alarm are electrically connected to the first liquid level sensor, the second liquid level sensor, and the drainage pump.

[0008] Furthermore, the one-way check valve is used to ensure that the accumulated water can only flow out of the well, and that external accumulated water cannot flow back into the well through the one-way check valve.

[0009] Furthermore, the preset height is 300mm.

[0010] Furthermore, when the drainage pump malfunctions, a fault signal will be sent to the well PLC control box. At this time, the indicator light of the drainage pump fault alarm indicator will light up, prompting maintenance personnel to handle the issue. The fault signal will also be transmitted to the background IBMS system via the network for alarm notification.

[0011] Furthermore, when the water level exceeds the water level alarm line, an over-limit signal will be sent to the well PLC control box, the water level over-limit alarm light will illuminate, and the over-limit signal will be sent to the background IBMS system via the network for alarm notification.

[0012] Furthermore, a water spray cover is provided in the circular receiving cavity of the drainage embedded part. The height of the water spray cover protrudes from the drainage embedded part. A water outlet is provided on 1 / 4 side of the water spray cover. The direction of the water outlet can be adjusted by rotating the water spray cover. A through hole and a sinking groove are provided in the middle of the water spray cover. A water spray cover block is provided in the sinking groove. A plurality of drainage holes are provided on the water spray cover block.

[0013] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0014] 1. Two liquid level sensors are used to realize liquid level monitoring and water level overrun monitoring. On the one hand, it can avoid water accumulation in the well, and on the other hand, it can prevent water level overrun, keep the entire well dry, and protect all electrical equipment.

[0015] 2. It can realize fault alarm of drainage pump, ensure the normal working status of drainage pump, and prevent the well from flooding due to failure of drainage pump 1; on the other hand, it is equipped with PLC control box, which can realize automatic control of the operation of the entire drainage system.

[0016] 3. By installing spray cover plates and spray cover plate blocking plates, repairs can be carried out quickly when drainage blockage occurs, improving the efficiency of blockage investigation and the service life of spray cover plates; in addition, the drainage direction can be easily adjusted by adjusting the direction of the spray cover plates, making the drainage direction more adaptable to site needs. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the well drainage system according to the present invention;

[0019] Figure 2 This is a schematic diagram of the PLC control box structure according to the present invention;

[0020] Figure 3 This is a schematic diagram of the ground drainage structure according to the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0022] like Figure 1-2 As shown, in this embodiment, an airport manhole drainage system is proposed. A sump is provided at the bottom of the manhole. The drainage system includes a drainage pump 1, a first level sensor 2, a second level sensor 3, a drainage hose 4, a one-way check valve 5, a drainage embedded part 6, and a manhole PLC control box 7. The drainage pump 1, the first level sensor 2, and the second level sensor 3 are all electrically connected to the manhole PLC control box 7. The drainage pump 1 is located in the sump. The drainage pump 1 is connected to the one-way check valve 5 via the drainage hose 4. The one-way check valve 5 is connected to the drainage embedded part 6 via the drainage hose 4, thus forming the main drainage circuit of the manhole. Water is discharged through the main circuit to the ground apron or drainage network; the one-way check valve 5 is used to ensure that the accumulated water can only flow out of the well, preventing external water from flowing back into the well; the first liquid level sensor 2 can automatically monitor the liquid level in the sump. When the water level in the sump reaches the set level of the liquid level sensor, the drainage pump 1 is automatically started to smoothly discharge the water in the well, ensuring that the well is dry and achieving the purpose of protecting electrical components; the second liquid level sensor 3 provides water level over-limit monitoring. It is generally set at a height of 300mm from the ground of the well pit, and the height is adjustable; when the water level exceeds the set over-limit water level, the over-limit signal will be sent to the drainage pump 1 to force the drainage pump 1 to start draining water.

[0023] The panel of the well PLC control box 7 is equipped with a drainage pump fault alarm indicator 8 and a water level over-limit alarm 9. Both the drainage pump fault alarm indicator 8 and the water level over-limit alarm 9 are electrically connected to the first liquid level sensor 2, the second liquid level sensor 3, and the drainage pump 1. When the drainage pump 1 malfunctions, a fault signal is sent to the well PLC control box 7. At this time, the indicator light on the drainage pump 1 fault alarm indicator 8 illuminates, prompting maintenance personnel to handle the issue. The fault signal is also transmitted to the background IBMS system via the network for alarm notification. When the water level exceeds the water level alarm line, an over-limit signal is sent to the well PLC control box 7, the water level over-limit alarm light on the water level over-limit alarm 9 illuminates, and the over-limit signal is simultaneously transmitted to the background IBMS system via the network for alarm notification.

[0024] like Figure 3 As shown, in an optional embodiment, to solve the problem of drainage outlet blockage on the apron, the drainage outlet of the well is made into a detachable structure. Specifically, a water spray cover 10 is installed inside the circular receiving cavity of the drainage pre-embedded part 6. The water spray cover 10 protrudes from the drainage pre-embedded part 6, and a water outlet is provided on one-quarter of the side of the water spray cover 10. The direction of the water outlet can be adjusted by rotating the water spray cover 10, thereby controlling the drainage direction. A through hole and a sinking groove are provided in the middle of the water spray cover 10, and a water spray cover plug 11 is installed in the sinking groove. The water spray cover plug 11 has multiple drainage holes. When drainage outlet blockage occurs, maintenance can be performed simply by opening the water spray cover plug 11 on the well, thus improving the service life of the water spray cover 10.

[0025] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An airport ground well drainage system, a water collecting pit is provided at the bottom of the well pit of the ground well, characterized in that: The drainage system comprises a drainage pump (1), a first liquid level sensor (2), a second liquid level sensor (3), a drainage hose (4), a one-way check valve (5), a drainage embedded part (6), and a well PLC control box (7), wherein the drainage pump (1), the first liquid level sensor (2), and the second liquid level sensor (3) are electrically connected to the well PLC control box (7), the drainage pump (1) is arranged in a water collecting pit, the drainage pump (1) is connected to the one-way check valve (5) through the drainage hose (4), the one-way check valve (5) is connected to the drainage embedded part (6) through the drainage hose (4), thereby forming a main drainage circuit of the well, and water in the well is drained to the ground apron or a drainage pipe network through the main drainage circuit. The first liquid level sensor (2) is used for automatically monitoring the liquid level of the water collecting pit, and when the water level in the water collecting pit reaches the set water level of the liquid level sensor, the drainage pump (1) is automatically started to smoothly drain the accumulated water in the well. The second liquid level sensor (3) is used for water level overtravel monitoring, and is arranged at a preset height from the ground of the well pit, and the preset height is adjustable; when the water level exceeds the set overtravel water level, an overtravel signal is sent to the drainage pump (1) to forcibly start the drainage pump (1) to drain water. The well PLC control box (7) is provided with a drainage pump (1) fault alarm indicator (8) and a water level overtravel alarm (9) on a panel thereof, and the drainage pump (1) fault alarm indicator (8) and the water level overtravel alarm (9) are electrically connected to the first liquid level sensor (2), the second liquid level sensor (3), and the drainage pump (1).

2. An airport drainage system according to claim 1, wherein: The one-way check valve (5) is used for ensuring that accumulated water can only flow out of the well, and external accumulated water cannot flow back to the inside of the well through the one-way check valve (5).

3. An airport drainage system according to claim 1, wherein: The preset height is 300 mm.

4. An airport drainage system according to claim 1, wherein: When the drainage pump (1) fails, a fault signal is sent to the well PLC control box (7), at this time, the indicator light of the drainage pump (1) fault alarm indicator (8) is bright, prompting the maintenance personnel to handle, and the fault signal is transmitted to the background IBMS system through the network to alarm and prompt.

5. An airport drainage system according to claim 1, wherein: When the water level exceeds the water level alarm line, an overtravel signal is sent to the well PLC control box (7), the water level overtravel light of the water level overtravel alarm (9) is bright, and the overtravel signal is sent to the background IBMS system through the network to alarm and prompt.

6. An airport drainage system according to claim 1, wherein: A water spraying cover plate (10) is arranged in the circular accommodating cavity of the drainage embedded part (6), the water spraying cover plate (10) is protruded from the drainage embedded part (6), a water outlet hole is arranged on 1 / 4 of the side surface of the water spraying cover plate (10), the direction of the water outlet hole can be adjusted by rotating the water spraying cover plate (10), a through hole and a sinking groove are arranged in the middle of the water spraying cover plate (10), a water spraying cover plate blocking plate (11) is arranged in the sinking groove, and a plurality of drainage holes are arranged on the water spraying cover plate blocking plate (11).

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