A powerful drainage system for solving water accumulation in cable trenches of substations in low-lying areas.

Abstract

This utility model relates to the field of substation drainage technology, specifically a forced drainage system for solving water accumulation in cable trenches of substations in low-lying areas. The system includes a road, a cable trench sump, a forced drainage well, a submersible pump, and the cable trench itself. The cable trench is located on one side of the road. A forced drainage well for installing the submersible pump is located on the side of the road closest to the cable trench. A cable trench sump is located on one side of the cable trench. The cable trench sump is connected to the forced drainage well via a first pipe and a waterproof sleeve. The submersible pump is installed inside the forced drainage well. The first pipe and the waterproof sleeve are connected by a connecting assembly. The protective assembly includes a support base, a protective cover, a fixing rod, and a first bolt. By installing the forced drainage well and the submersible pump, water accumulated in the cable trench sump can be actively pumped to the outside of the substation perimeter without relying on natural slope, effectively protecting cable equipment, reducing cable faults caused by water accumulation, extending cable life, and reducing maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of substation drainage technology, specifically to a forced drainage system for solving water accumulation in cable trenches of substations in low-lying areas. Background Technology

[0002] The power industry is vital to people's livelihoods. In recent years, the new energy industry, led by wind power and photovoltaics, has developed rapidly. For a long time to come, the power industry will continue to maintain a rapid growth trend. Substations are an important part of the power industry.

[0003] Cable trenches are an important component of substations. Cables are critical power transmission equipment in substations and require strict management and protection. Cable trenches protect cables, reducing the risk of friction or impact between cables and other equipment, thereby extending cable life and reducing failure rates and maintenance costs. Cable trenches also connect cables within the substation to external equipment such as transmission lines, lighting equipment, and motors, improving the overall efficiency of the substation. In the event of emergencies or accidents, cable trenches can serve as part of emergency power equipment, facilitating power cut-off and preventing the accident from escalating. Therefore, proper drainage of cable trenches is crucial for ensuring the stable and safe operation of cables. Conventional cable trench drainage methods use slope-based drainage. When constructing cable trenches within the substation area, a slope is created to a collection well, and then water from the collection well is drained through pipes to low-lying areas outside the substation. This drainage method is greatly affected by topography; if the substation is located in a low-lying area, water will be difficult to drain, making conventional slope-based drainage unsuitable.

[0004] To address this issue, we propose a forced drainage system for solving the problem of water accumulation in cable trenches of substations in low-lying areas. Utility Model Content

[0005] The main purpose of this utility model is to provide a forced drainage system for solving the problem of water accumulation in cable trenches of substations in low-lying areas. By setting up forced drainage wells and submersible pumps, the system can actively pump the water accumulated in the cable trench collection wells to the outside of the substation perimeter without relying on the natural slope, effectively protecting cable equipment, reducing cable failures caused by water accumulation, extending cable service life, and reducing maintenance costs; it can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A forced drainage system for solving water accumulation in cable trenches of substations in low-lying areas includes a road, a cable trench sump, a forced drainage well, a submersible pump, and a cable trench. The cable trench is located on one side of the road. A forced drainage well for installing the submersible pump is provided on the side of the road near the cable trench. A cable trench sump is provided on one side of the cable trench. The cable trench sump is connected to the forced drainage well through a first pipe and a waterproof sleeve. The forced drainage well is equipped with a submersible pump. The first pipe and the waterproof sleeve are connected by a connecting component, which is located inside a protective component. The protective component is located at one end of the forced drainage well. The protective assembly includes a support base, a protective cover, a fixing rod, and a first bolt. The support base and the fixing rod are arranged in two sets, which are relatively parallel to each other. An assembly channel for accommodating the connecting assembly is provided between the two sets of support bases. The connecting assembly includes a first fastener, a second fastener, a positioning plate, and a second bolt.

[0007] By adopting the above technical solution and installing forced drainage wells and submersible pumps, the system can actively pump water from the cable trench sump to the outside of the substation perimeter without relying on natural slopes. This completely solves the problem of water accumulation in cable trenches of substations in low-lying areas, effectively protecting cable equipment, reducing cable faults caused by water accumulation, extending cable lifespan, and reducing maintenance costs. The forced drainage wells can be either cast-in-place on-site or prefabricated in the factory, depending on actual needs. Cast-in-place construction is better suited to complex geological conditions, while factory prefabrication can shorten the construction cycle and improve construction efficiency. At the same time, the system can flexibly adjust the position of the cable trench sump and forced drainage wells and the direction of the first pipeline according to the substation layout, adapting to substations of different sizes and layouts. The construction process is simple and easy to understand, requiring no complex professional equipment, and can be completed by ordinary construction teams, reducing construction difficulty and costs.

[0008] Specifically, both ends of the support base are provided with an embedding groove that matches the two ends of the fixing rod, and both ends of the fixing rod are engaged with one side of the support base.

[0009] Specifically, the top of the support base is provided with an arc-shaped groove at the center that is compatible with the first pipe and the waterproof sleeve, and an anti-slip pad is fixedly glued to the inner wall of the arc-shaped groove at the top of the support base.

[0010] Specifically, the top of the support base is provided with positioning grooves at both ends that are adapted to the bottom of the protective cover, and the protective cover is fixedly connected to the top of the support base by the first bolt.

[0011] Specifically, a waterproof sleeve is installed at the lower part of one end of the forced drainage well. The end of the waterproof sleeve away from the forced drainage well is fixedly connected to one end of the first pipe through a flange and self-tapping screws. The first fastener and the second fastener are fastened to one end of the first pipe and the end of the waterproof sleeve away from the forced drainage well.

[0012] Specifically, the first fastener and the second fastener together form a circular structure. Positioning plates are fixedly connected to both ends of the first fastener and the second fastener. The first fastener and the second fastener are fixedly connected by the positioning plates and the second bolts. The protective cover is located above the first fastener and the second fastener.

[0013] The beneficial effects of this utility model are as follows: The forced drainage system for solving water accumulation in cable trenches of substations in low-lying areas, as described in this utility model, by setting up forced drainage wells and submersible pumps, can actively pump the water accumulated in the cable trench collection wells to the outside of the substation perimeter without relying on natural slopes. This completely solves the problem of water accumulation in cable trenches of substations in low-lying areas, effectively protecting cable equipment, reducing cable failures caused by water accumulation, extending cable service life, and reducing maintenance costs. The forced drainage wells can be selected for on-site casting or factory prefabrication according to actual needs. On-site casting can better adapt to complex geological conditions, while factory prefabrication can shorten the construction cycle and improve construction efficiency. At the same time, the system can flexibly adjust the position of the cable trench collection wells and forced drainage wells and the direction of the first pipeline according to the substation layout, adapting to substations of different sizes and layouts. The construction process is simple and easy to understand, requiring no complex professional equipment, and can be completed by ordinary construction teams, reducing construction difficulty and costs. The material of the forced drainage well can be flexibly selected according to the environmental protection requirements and budget of the substation. It can adopt the traditional reinforced concrete structure, which has the advantages of high strength and high durability and is suitable for scenarios with high requirements for structural stability. Alternatively, new environmentally friendly composite materials can be used, which takes into account both practicality and environmental protection. The submersible pump is equipped with a remote control system, which allows on-site management personnel to monitor the water level in the forced drainage well in real time through a remote terminal without going to the site. The submersible pump can be started and stopped automatically or manually according to the water level, which greatly reduces the workload and management difficulty of manual inspection. The connection components and protection components in the system effectively ensure the stability and safety of the pipeline connection. The support base and protective cover of the protection component not only support the pipeline and connection parts, but also isolate external debris and rainwater erosion, reducing the risk of component damage. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a perspective view of the protective component of this utility model; Figure 3 This is a perspective view of the connecting component of this utility model; In the diagram: 1. Road; 2. Cable trench sump; 3. Forced drainage well; 4. Submersible pump; 5. Cable trench; 6. First pipeline; 7. Protective component; 8. Support base; 9. Protective cover; 10. Waterproof sleeve; 11. Connecting component; 12. First fastener; 13. Second fastener; 14. Fixing rod; 15. Positioning groove. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] As one embodiment of this utility model, such as Figures 1-3 As shown, the present invention provides a forced drainage system for solving water accumulation in cable trenches of substations in low-lying areas, comprising a road 1, a cable trench collection well 2, a forced drainage well 3, a submersible pump 4, and a cable trench 5. The cable trench 5 is located on one side of the road 1. A forced drainage well 3 for installing the submersible pump 4 is provided on the side of the road 1 near the cable trench 5. A cable trench collection well 2 is provided on one side of the cable trench 5. The cable trench collection well 2 is connected to the forced drainage well 3 through a first pipe 6 and a waterproof sleeve 10. The submersible pump 4 is installed inside the forced drainage well 3. The first pipe 6 and the waterproof sleeve 10 are connected by a connecting component 11, which is located inside a protective component 7. The protective component 7 is located at one end of the forced drainage well 3. The protective component 7 includes a support base 8, a protective cover 9, a fixing rod 14, and a first bolt. The support base 8 and the fixing rod 14 are arranged in two sets that are relatively parallel to each other. An assembly channel for accommodating the connecting component 11 is provided between the two sets of support bases 8. The connecting component 11 includes a first fastener 12, a second fastener 13, a positioning plate, and a second bolt.

[0018] During use, the forced drainage system should be inspected and maintained regularly. The manhole of the forced drainage well 3 (the manhole of the forced drainage well is preset) should be opened every quarter. The silt and debris at the bottom of the well should be cleaned by climbing down the ladder to prevent blockage of the inlet of the submersible pump 4. Check whether the first pipeline 6 is damaged or leaking, and perform regular maintenance on the submersible pump 4.

[0019] This utility model also includes that both ends of the support base 8 are provided with an embedding groove that matches the two ends of the fixing rod 14, and both ends of the fixing rod 14 are engaged with one side of the support base 8.

[0020] The present invention also includes an arc-shaped groove at the center of the top of the support base 8, which is adapted to the first pipe 6 and the waterproof sleeve 10, and an anti-slip pad is fixedly glued to the inner wall of the arc-shaped groove at the top of the support base 8.

[0021] The present invention also includes that the top of the support base 8 is provided with positioning grooves 15 at both ends that are adapted to the bottom of the protective cover 9, and the protective cover 9 is fixedly connected to the top of the support base 8 by the first bolt.

[0022] The present invention also includes a waterproof sleeve 10 installed at the lower part of one end of the forced drainage well 3. The end of the waterproof sleeve 10 away from the forced drainage well 3 is fixedly connected to one end of the first pipe 6 through a flange and self-tapping screws. The first fastener 12 and the second fastener 13 are fastened to one end of the first pipe 6 and the end of the waterproof sleeve 10 away from the forced drainage well 3.

[0023] The present invention also includes that the first fastener 12 and the second fastener 13 together form a circular structure, and positioning plates are fixedly connected to both ends of the first fastener 12 and the second fastener 13. The first fastener 12 and the second fastener 13 are fixedly connected by the positioning plates and the second bolts, and the protective cover 9 is located above the first fastener 12 and the second fastener 13.

[0024] When using this utility model, during the overall construction planning stage of the substation, it is necessary to rationally lay out the forced drainage system in conjunction with the substation's overall plan. First, based on the direction, length, and expected water accumulation of the cable trench 5, the location and size of the cable trench collection well 2 and the forced drainage well 3 are determined. The cable trench collection well 2 is preferentially located in the road crossing section of the cable trench 5, a location that facilitates the natural collection of water within the trench. The forced drainage well 3 is located on the side of the road 1 closest to the cable trench 5, and its burial depth needs to be determined based on the substation's geological conditions. If the geological conditions are poor, the burial depth can be appropriately increased to improve stability. Simultaneously, the size of the forced drainage well 3 is selected according to the amount of water accumulation. When the water volume is large, a well structure with a larger inner diameter should be selected; in terms of component selection, the submersible pump 4 should be a model with remote control function, and its head and flow rate should match the forced drainage requirements to ensure that the water in the forced drainage well 3 can be efficiently discharged to the outside of the substation wall; the first pipe 6 should be made of corrosion-resistant and high-strength pipe to avoid long-term contact with water leading to rust or damage; the waterproof sleeve 10 should be a flexible waterproof sleeve to enhance the sealing of the connection with the forced drainage well 3 and prevent water leakage; the support seat 8, protective cover 9 in the protective component 7 and the first fastener 12 and second fastener 13 of the connecting component 11 should all be made of stainless steel to improve corrosion resistance; When pouring cable trenches at the substation, construction space for cable trench sump 2 is reserved at the cable trench crossing section. The sump is made using a formwork pouring process, and C30 concrete is used as the pouring material to ensure the strength of the sump. A waterproof sleeve interface that is compatible with the first pipe 6 is pre-set at the bottom of the sump. The interface elevation should be 10-15cm higher than the bottom of the sump to avoid silt blocking the pipe at the bottom of the well. Subsequently, the construction pit for the forced drainage well 3 is excavated. If the on-site casting method is adopted, the steel reinforcement cage must be tied first, and then the formwork is erected and the concrete is poured. If the factory prefabrication method is adopted, the prefabricated well cylinder can be transported to the site, directly hoisted into the construction pit and fixed. The bottom of the forced drainage well 3 also has a reserved interface for the waterproof sleeve 10, and the elevation of this interface must be 5-8cm lower than the elevation of the waterproof sleeve interface of the cable trench water collection well 2 to form a natural drainage slope and ensure that the water in the cable trench water collection well 2 can flow smoothly into the forced drainage well 3. Pipeline connection and fixing: First, install the waterproof sleeve 10 at the reserved interface at the lower end of one end of the forced drainage well 3, and enhance the sealing between the waterproof sleeve 10 and the well shaft by using a sealing rubber ring; then, connect one end of the first pipe 6 to the end of the waterproof sleeve 10 away from the forced drainage well 3 by using a flange connection method, and fix the flange with self-tapping screws to ensure a tight connection; then install the connection component 11, and fasten the first fastener 12 and the second fastener 13 to the connection part of the first pipe 6 and the waterproof sleeve 10, and the two together form a circular structure, which is fixed by the positioning plates and the second bolt at both ends to further strengthen the pipeline connection and prevent the pipeline from disengaging due to water flow impact or settlement; Installation of protective components: Install protective components 7 at the end of the forced drainage well 3 near the first pipe 6; first, place the two sets of support seats 8 in parallel. The arc groove at the center of the top of the support seat 8 should fit against the outer wall of the first pipe 6 and the waterproof sleeve 10. The anti-slip pad on the inner wall of the arc groove can increase the friction between the first pipe 6 and the waterproof sleeve 10 to prevent slippage; the embedded grooves at both ends of the support seat 8 are engaged with the two ends of the fixing rod 14. The two sets of support seats 8 are connected and fixed by the fixing rod 14 to form a stable support structure; then, align the bottom end of the protective cover 9 with the positioning groove 15 at the top of the support seat 8, and fix the protective cover to the support seat 8 with the first bolt. The protective cover 8 covers the connection component 11 to prevent external debris from impacting or rainwater from eroding the connection part and extend the service life of the connection component; Submersible pump 4 is placed into forced drainage well 3, ensuring that the inlet of submersible pump 4 is lower than the lowest water level in forced drainage well 3. At the same time, submersible pump 4 is connected to remote control system via cable to realize functions such as remote start and stop and water level monitoring. Regularly inspect and maintain the forced drainage system. Open the manhole of forced drainage well 3 (the manhole of forced drainage well is preset) every quarter, climb down the ladder to clean the silt and debris at the bottom of the well, and prevent blockage of the inlet of submersible pump 4. Check whether the first pipeline 6 is damaged or leaking, and regularly maintain submersible pump 4.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A forced drainage system for solving water accumulation in cable trenches of substations in low-lying areas, characterized in that, The system includes a road (1), a cable trench sump (2), a forced drainage well (3), a submersible pump (4), and a cable trench (5). The cable trench (5) is located on one side of the road (1). The road (1) is provided with a forced drainage well (3) for installing the submersible pump (4) on the side of the cable trench (5). The cable trench (5) is provided with a cable trench sump (2). The cable trench sump (2) is connected to the forced drainage well (3) through a first pipe (6) and a waterproof sleeve (10). The forced drainage well (3) is equipped with a submersible pump (4). The first pipe (6) and the waterproof sleeve (10) are connected by a connecting component (11). The connecting component (11) is located inside a protection component (7). The protection component (7) is located at one end of the forced drainage well (3). The protective component (7) includes a support base (8), a protective cover (9), a fixing rod (14) and a first bolt. The support base (8) and the fixing rod (14) are provided in two sets, which are relatively parallel to each other. An assembly channel for accommodating the connecting component (11) is provided between the two sets of support bases (8). The connecting component (11) includes a first fastener (12), a second fastener (13), a positioning plate and a second bolt.

2. The forced drainage system for solving water accumulation in cable trenches of substations in low-lying areas according to claim 1, characterized in that, Both ends of the support base (8) are provided with an embedding groove that matches the two ends of the fixing rod (14), and both ends of the fixing rod (14) are engaged with one side of the support base (8).

3. The forced drainage system for solving water accumulation in cable trenches of substations in low-lying areas according to claim 1, characterized in that, The top of the support base (8) is provided with an arc-shaped groove that is compatible with the first pipe (6) and the waterproof sleeve (10). The top of the support base (8) is fixedly glued with an anti-slip pad on the inner wall of the arc-shaped groove.

4. A forced drainage system for solving water accumulation in cable trenches of substations in low-lying areas, as described in claim 3, is characterized in that... The top of the support base (8) is provided with positioning grooves (15) at both ends that are adapted to the bottom of the protective cover (9). The protective cover (9) is fixedly connected to the top of the support base (8) by the first bolt.

5. A forced drainage system for solving water accumulation in cable trenches of substations in low-lying areas, as described in claim 1, is characterized in that... A waterproof sleeve (10) is installed at the lower part of one end of the forced drainage well (3). The end of the waterproof sleeve (10) away from the forced drainage well (3) is fixedly connected to one end of the first pipe (6) through a flange and self-tapping screws. The first fastener (12) and the second fastener (13) are fastened to one end of the first pipe (6) and the end of the waterproof sleeve (10) away from the forced drainage well (3).

6. A forced drainage system for solving water accumulation in cable trenches of substations in low-lying areas, as described in claim 1, is characterized in that... The first fastener (12) and the second fastener (13) together form a circular structure. Both ends of the first fastener (12) and the second fastener (13) are fixedly connected with positioning plates. The first fastener (12) and the second fastener (13) are fixedly connected by positioning plates and second bolts. The protective cover (9) is located above the first fastener (12) and the second fastener (13).

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