Combined baffle for flood prevention of transformer substation

Abstract

The combined baffle comprises a plurality of combined units, each unit comprises a bottom plate, a supporting plate and a back plate are arranged on the front portion and the rear portion of the bottom plate respectively, the back plate is fixedly connected with the bottom plate, the two sides of the supporting plate and the two sides of the back plate are connected together through first connecting rods, and every two first connecting rods form a group. The centers of the two first connecting rods in each set are hinged together, the front ends and the rear ends of the two first connecting rods are hinged into the supporting plate and the back plate respectively, and the front portion of the supporting plate is connected with a movable plate capable of sliding up and down through a sliding rail. Compared with the prior art, through innovative combination of mechanical linkage and fluid dynamics, automatic response of the flood prevention structure is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of flood prevention devices, in particular to a combined baffle for flood prevention in a transformer substation. Background Art

[0002] Substations, as the core hub of the power system, undertake critical functions such as voltage conversion and energy distribution. Their internal high-voltage equipment has stringent operating requirements. Flooding can lead to serious accidents such as insulation failure, short circuits, and explosions. Substation outages caused by flooding pose a significant threat to the stability of social power supply. Therefore, building efficient and reliable flood control barriers is a core requirement for ensuring the safe operation of power facilities.

[0003] At present, substation flood prevention mainly relies on the following technical means:

[0004] Concrete retaining wall: Blocks water flow by pouring a rigid wall of fixed height. However, it cannot adapt to water level fluctuations. It forms a redundant structure at low water levels and easily overflows and fails at high water levels. The construction period is long, hindering emergency flood prevention response. The permanent land occupation affects the later expansion of the substation.

[0005] Sandbag stacking: Temporarily use woven bags filled with sand to build retaining walls. Although the cost is low, it requires a lot of manpower and is difficult to deploy quickly when labor is scarce during the flood season. The sealing is poor, the water seepage rate between the sandbags is as high as 20%-30%, and the entire sandbag is prone to slippage.

[0006] Assembled metal baffles: Modular assembly of aluminum alloy or galvanized steel plates improves installation efficiency, but are limited by static structural design. The baffle height is fixed and cannot automatically expand as the water level rises. The units rely on static sealing with rubber strips, which are prone to aging and cracking under long-term pressure. There is a lack of energy dissipation structure. In addition, strong winds will occur before floods occur. The higher the baffle height, the greater the wind resistance coefficient. Structural damage may occur during the strong wind stage before the flood, causing the flood control system to lose its protection capabilities before the flood arrives.

[0007] Therefore, it is necessary to provide a combined baffle for flood control in a substation to solve the problems raised in the above background technology. Summary of the Invention

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combined baffle for flood control in a substation, comprising a plurality of combined units, each unit comprising a base plate, a support plate and a back plate respectively provided on the front and rear of the base plate, the back plate being fixedly connected to the base plate, the support plate and the back plate being connected together on both sides by a group of two first connecting rods, the two first connecting rods in each group being hinged together at the center, and the front and rear ends being hinged to the support plate and the back plate respectively, the front of the support plate being connected to a movable plate that can slide up and down through a slide rail.

[0009] Furthermore, a second connecting rod is hinged on both sides between the movable plate and the back plate.

[0010] Furthermore, a supporting cylinder is hinged between one of the first connecting rods of each group and the base plate.

[0011] Furthermore, first sealing plates that can slide laterally are provided on both sides of the support plate, and second sealing plates that can slide laterally are provided on both sides of the movable plate. The first sealing plates and second sealing plates of adjacent units abut against each other to form side seals.

[0012] Furthermore, elastic sealing strips are provided on the contact sides of the first sealing plate and the second sealing plate.

[0013] Furthermore, a vertical latch is fixed on the top of the second sealing plate, and the latch is slidably embedded in the first sealing plate.

[0014] Furthermore, nuts are fixed on the upper and lower ends of the first sealing plate, and a screw rod that cooperates with the nut is fixed on the hinge shaft between the first connecting rod and the support plate. When the support plate moves horizontally, the first sealing plate is driven to move laterally by the rotation of the screw rod.

[0015] Furthermore, buckles are provided on both sides of the support plate, and the buckles can lock the support plates of adjacent units to each other.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, in the initial state, there is a certain distance between the support plate and the back plate, and the center of gravity is centered, which improves stability and wind resistance. When flooding occurs, the support plate is automatically adjusted in translation under the action of water pressure. When the water level rises, the pressure pushes the support plate backward, driving the increase in the contact area between the bottom plate and the ground, and using the kinetic energy of the water to convert it into downward pressure on the device. In addition, the second connecting rod converts the displacement of the support plate into the vertical displacement of the movable plate, forming a height self-compensation mechanism, and achieving dynamic matching of the water retaining height and water level changes. It can form an effective barrier when the water level is high and reduce the impact of wind resistance when the water level is low. It achieves a dynamic balance between flood control and wind resistance - it reduces risks by keeping a low profile before the flood arrives, and automatically raises the protection height when the water level rises, fundamentally solving the engineering paradox of traditional baffles: "the structure collapses before the flood control arrives."

[0018] In the present invention, automatic compensation of the sealing gap is achieved through the screw-nut transmission mechanism. When the support plate moves backward, the first sealing plate is displaced laterally, and the second sealing plate is synchronously displaced laterally in conjunction with the latch, thereby increasing the contact pressure of the elastic sealing strip and effectively blocking water penetration. It can not only improve the reliable sealing effect when the water pressure is high, but also reduce the aging of the sealing strip when the water pressure is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a combined baffle for flood control in a substation;

[0020] Figure 2 Schematic diagram of the overall structure of a single unit;

[0021] Figure 3 Schematic diagram of the cross-sectional structure of a single unit;

[0022] Figure 4 It is a structural schematic diagram of the first sealing plate and the second sealing plate of two adjacent units;

[0023] In the figure: 1. Base plate; 2. Back plate; 3. Support plate; 4. Movable plate; 5. Slide rail; 6. Buckle; 7. First connecting rod; 8. Second connecting rod; 9. First sealing plate; 10. Second sealing plate; 11. Pin; 12. Nut; 13. Screw rod; 14. Support cylinder. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 4 In an embodiment of the present invention, a combined baffle for flood control in a substation includes a plurality of combined units, each unit including a base plate 1, a support plate 3 and a back plate 2 are respectively provided on the front and rear of the base plate 1, the back plate 2 is fixedly connected to the base plate 1, and the two sides between the support plate 3 and the back plate 2 are respectively connected together by two first connecting rods 7 in a group, the two first connecting rods 7 in each group are hinged together at the center, and the front and rear ends are respectively hinged to the support plate 3 and the back plate 2, and the front of the support plate 3 is connected to a movable plate 4 that can slide up and down through a slide rail 5.

[0025] In this embodiment, second connecting rods 8 are hinged on both sides of the movable plate 4 and the back plate 2 .

[0026] In this embodiment, a supporting cylinder 14 is hinged between one of the first connecting rods 7 of each group and the base plate 1 .

[0027] Multiple units are arranged in a horizontal combination, and the support plate 3 of each unit can block the water flow. When the water level is at a certain height, a thrust will be generated on the support plate 3. Under the action of each group of first connecting rods 7, the support plate 3 will be moved horizontally close to the back plate 2. At this time, the contact area between the bottom plate 1 and the water flow increases to provide downward pressure. In the process of the support plate 3 approaching the back plate 2, the supporting cylinder 14 plays a buffering and elastic supporting role, which dissipates energy for the impact of the water flow and improves stability. When the support plate 3 approaches the back plate 2, the second connecting rod 8 will push the movable plate 4 to move upward, so that when the water level is higher, the pressure of the support plate 3 is greater, and the movable plate 4 moves up to a higher position to block the higher water level, so that the height of the movable plate 4 matches the height of the water level, which can not only ensure that the water flow can be blocked, but also avoid the instability of the device caused by excessive wind resistance when the water level is low.

[0028] In this embodiment, first sealing plates 9 that can slide laterally are provided on both sides of the support plate 3, and second sealing plates 10 that can slide laterally are provided on both sides of the movable plate 4. The first sealing plates 9 and second sealing plates 10 of adjacent units abut against each other to form side seals.

[0029] In this embodiment, elastic sealing strips are provided on the contact sides of the first sealing plate 9 and the second sealing plate 10 .

[0030] That is, when the two units are attached to each other, the side surfaces of the support plate 3 are attached through the first sealing plate 9 and the side surfaces of the movable plate 4 are attached through the second sealing plate 10, thereby sealing the gap and preventing water from leaking from the gap.

[0031] In this embodiment, a vertical latch 11 is fixed to the top of the second sealing plate 10 , and the latch 11 is slidably embedded in the first sealing plate 9 .

[0032] In this embodiment, nuts 12 are fixed to the upper and lower ends of the first sealing plate 9, and a screw rod 13 that cooperates with the nut 12 is fixed to the hinge axis between the first connecting rod 7 and the support plate 3. When the support plate 3 moves horizontally, the screw rod 13 rotates to drive the first sealing plate 9 to move horizontally.

[0033] That is to say, when the support plate 3 is close to the back plate 2, the first connecting rod 7 will drive the screw rod 13 to rotate, so that the screw rod 13 pushes the first sealing plate 9 to slide to both sides under the action of the corresponding nut 12, thereby improving the fitting tightness of the first sealing plate 9 between the two units, and the higher the water level and the greater the pressure of the support plate 3, the higher the fitting tightness of the first sealing plate 9 between the two units, so as to better seal the gap between the support plates 3; in addition, under the action of the pin 11, when the first sealing plate 9 slides, it will drive the corresponding second sealing plate 10 to slide synchronously, ensuring that the gap between the movable plate 4 between the two units can also be sealed.

[0034] In this embodiment, buckles 6 are provided on both sides of the support plates 3 to lock the support plates 3 of adjacent units together. The buckles 6 connect the support plates 3 of two adjacent units together to prevent misalignment between the support plates 3, which would cause the first sealing plate 9 and the second sealing plate 10 to fail to seal.

[0035] In practice, this modular flood control barrier is composed of multiple horizontally connected units, with adaptive water level adjustment and linked sealing functions. Through the dynamic coordination of the support plate, movable plate, and sealing structure, it can resist water flow impact and automatically increase the water retaining height as the water level rises. At the same time, it eliminates gaps between units to ensure flood control stability. Specifically:

[0036] Arrange multiple units closely horizontally along the protective line, ensuring that the bottom plate 1 is flat on the ground, and the sides of the support plates 3 of adjacent units are aligned. Use the buckles 6 on both sides of the support plates 3 to fix the adjacent units to prevent misalignment;

[0037] When a flood occurs and the water level gradually rises, the water pressure exerts a horizontal thrust on the support plate 3. The thrust is transmitted to the back plate 2 through each set of first connecting rods 7, pushing the support plate 3 to move horizontally toward the back plate 2. The support cylinder 14 contracts under pressure, providing hydraulic buffering. When the support plate 3 moves backward, the contact area between the bottom plate 1 and the ground increases, and the impact force of the water flow is converted into downward force, thereby enhancing the overall anti-slip ability.

[0038] The support plate 3 is continuously pressed and moves backward, and the second connecting rod 8 pushes the movable plate 4 to slide vertically upward along the slide rail 5. The higher the water level rises, the higher the movable plate 4 rises, forming a water retaining structure with automatic height adjustment.

[0039] At the same time, the greater the rearward movement of the support plate 3, the greater the rotation angle of the screw rod 13, the greater the lateral displacement of the first sealing plate 9, the latch 11 moves with the first sealing plate 9, and the second sealing plate 10 is synchronously expanded outward to seal the side seams of the support plate 3 and the movable plate 4 of the adjacent units;

[0040] After the water level drops, the supporting cylinder 14 pushes the supporting plate 3 to return to its initial position, and the movable plate 4 slides down to return to its original position to reduce the overall height and reduce the influence of wind resistance. The screw rod 13 rotates in the opposite direction, the first sealing plate 9 retracts, and the elasticity of the sealing strip is restored, thereby increasing the service life of the sealing strip.

[0041] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A combined baffle for flood control in a substation, comprising a plurality of combined units, characterized in that: Each unit comprises a base plate (1), wherein a support plate (3) and a back plate (2) are respectively provided on the front and rear of the base plate (1), wherein the back plate (2) is fixedly connected to the base plate (1), and the two sides between the support plate (3) and the back plate (2) are respectively connected together by two first connecting rods (7) in a group, wherein the two first connecting rods (7) in each group are hinged together at the center, and the front and rear ends are respectively hinged to the support plate (3) and the back plate (2), and the front of the support plate (3) is connected to a movable plate (4) which can slide up and down through a slide rail (5).

2. A combined baffle for flood control in a substation according to claim 1, characterized in that: A second connecting rod (8) is hingedly connected on both sides between the movable plate (4) and the back plate (2).

3. The combined baffle for flood control in a substation according to claim 1, characterized in that: A supporting cylinder (14) is hingedly connected between one of the first connecting rods (7) of each group and the base plate (1).

4. The combined baffle for flood control in a substation according to claim 1, characterized in that: The support plate (3) is provided with first sealing plates (9) that can slide laterally on both sides, and the movable plate (4) is provided with second sealing plates (10) that can slide laterally on both sides. The first sealing plates (9) and the second sealing plates (10) of adjacent units abut against each other to form side seals.

5. A combined baffle for flood control in a substation according to claim 4, characterized in that: Elastic sealing strips are provided on the contact sides of the first sealing plate (9) and the second sealing plate (10).

6. A combined baffle for flood control in a substation according to claim 4, characterized in that: A vertical latch (11) is fixed to the top of the second sealing plate (10), and the latch (11) is slidably embedded in the first sealing plate (9).

7. The combined baffle for flood control in a substation according to claim 4, characterized in that: Nuts (12) are fixed to the upper and lower ends of the first sealing plate (9), and a screw rod (13) that cooperates with the nut (12) is fixed to the hinge shaft between the first connecting rod (7) and the support plate (3). When the support plate (3) moves horizontally, the screw rod (13) rotates to drive the first sealing plate (9) to move horizontally.

8. The combined baffle for flood control in a substation according to claim 1, characterized in that: Buckles (6) are provided on both sides of the support plate (3), and the buckles (6) can lock the support plates (3) of adjacent units to each other.

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