Anti-blocking device for pumping and draining accumulated water in transformer substation

Abstract

The invention discloses an anti-blocking device for transformer substation accumulated water pumping drainage, and belongs to the technical field of transformer substation drainage. The anti-blocking device comprises an annular box, the annular box is pre-buried around a cable well of a transformer substation, the upper surface of the annular box is flush with the ground, a cover plate is detachably arranged at the upper end of the annular box, and a corrugated expansion bag is arranged in the annular box; the corrugated expansion bag is communicated with a fan, the fan is fixedly installed at the inner bottom of the annular box, an air inlet of the fan is connected with a guide pipe, the guide pipe extends to the upper portion of the outer portion of the annular box, an electric control device is arranged in the annular box, the fan is connected with the electric control device, and the corrugated expansion bag is connected with an auxiliary assembly through a connecting assembly. The annular box, the corrugated expansion bag, the draught fan and the electric control device are integrated and pre-buried around the cable well, the draught fan is adopted to inflate the corrugated expansion bag, so that the corrugated expansion bag is expanded, a physical water blocking barrier is formed, traditional passive flood prevention modes such as sandbags and baffles are replaced, and the labor intensity and labor are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of substation drainage, and particularly relates to a substation accumulated water pumping and draining anti-blocking device. BACKGROUND

[0002] In heavy rain weather, the internal and peripheral drainage system of the substation cannot timely drain the surrounding accumulated water, which causes the internal and peripheral substation to appear accumulated water, and the accumulated water causes the equipment in the substation to run unstably, affects the power supply, and even can cause damage to the equipment. Therefore, in order to avoid the influence of the accumulated water on the substation, the operation and maintenance personnel need to quickly pump out the accumulated water in the substation. However, the operation and maintenance personnel find that, in the water pumping process, due to the fact that many cable wells are arranged in the substation, the water in the cable well pours out from the well cover while the accumulated water in the substation is pumped out, which causes the water in the cable well to pour into the substation while the accumulated water in the substation is pumped out, and the drainage efficiency is low and the drainage time is long. At present, the traditional solution is to stack sandbags around the cable well to increase the water pouring height of the cable well, so that the water in the cable well does not pour out, to avoid the water from flowing into the substation. However, the work of stacking sandbags in the accumulated water is large, and it is rainy, on the one hand, there is a great risk, and on the other hand, the work efficiency is very low. Therefore, a substation accumulated water pumping and draining anti-blocking device is needed. SUMMARY

[0003] The application aims to overcome the deficiencies of the prior art, and provides a substation accumulated water pumping and draining anti-blocking device, which solves the technical problems in the background.

[0004] The utility model aims at such realization: a substation ponding pumping is with anti -blocking device, including annular box, the annular box is embedded around the cable well of substation, its upper surface is flush with ground, the upper end of annular box is detachably provided with the cover plate, the inside of annular box is provided with the corrugated expansion sac, the corrugated expansion sac is connected with the fan, the fan is fixedly installed in the inner bottom of annular box, the air inlet of fan is connected with the duct, the duct extends to the outside above annular box, the inside of annular box is provided with the electric control device, the fan is connected with electric control device, the corrugated expansion sac is connected with auxiliary assembly through the connecting assembly. By integrating annular box, corrugated expansion sac, fan, electric control device in one, embedding around the cable well. The fan is used for the corrugated expansion sac inflation, makes it swell, forms the physical water -blocking barrier, replaces traditional sandbag, baffle etc. Passive flood control mode. Through the electric control device intelligent control fan, realizes the automation process from the perception (or receives instruction) to execution (inflation water -blocking). Compared with artificial sandbag, the device can realize one -key start or automatic start, and the response speed is extremely fast, and the device can gain valuable time for substation flood control. Avoid the heavy manual handling and installation work completely, reduce the labor intensity and manual cost. Solve the cleaning and disposal problem of sandbag etc. disposable flood control materials, and the device can be recycled and reused.

[0005] Further, the upper end of the annular box is provided with a groove, the lower surface of the cover plate is provided with a protrusion, the cover plate is placed on the upper end of the annular box by being engaged in the groove through the protrusion, the plate surface of the cover plate is provided with a through hole, the duct penetrates through the through hole and is slidably connected with the through hole. The cover plate can be easily lifted, facilitating the maintenance and repair of the components in the annular box, and facilitating maintenance. When the corrugated sac swells and shrinks, the duct and the through hole are slidably connected to avoid structural interference or damage. During the inflation process, the corrugated sac lifts the cover plate, the duct is fixed, and the cover plate slides upward relative to the duct. The duct plays a guiding role to avoid tilting.

[0006] Further, the auxiliary assembly comprises a first ring cylinder, a second ring cylinder and a third ring cylinder, the lower end of the first ring cylinder is fixedly connected to the inner ground of the annular box, and the first ring cylinder is arranged on the inner side of the corrugated expansion bag, the lower end of the second ring cylinder is slidably connected to the upper end of the first ring cylinder, and the second ring cylinder is accommodated in the interior of the first ring cylinder, and the lower end of the third ring cylinder is slidably connected to the upper end of the second ring cylinder, and the third ring cylinder is accommodated in the interior of the second ring cylinder. When the corrugated bag is inflated and expanded upward, the innermost third ring cylinder is pulled up by the pull rope, the third ring cylinder drives the second ring cylinder to stretch out of the first ring cylinder, and a high and rigid support framework is formed. The telescopic structure of the multi-layer sleeve (the first, second and third ring cylinders) and the pull rope are used as the connecting assembly. The multi-layer sleeve is unfolded when the corrugated bag is expanded, providing vertical guidance and radial support for the high and bulky bag body, preventing it from tilting, falling or excessive shaking, and ensuring the stability of the water-blocking barrier. In the contracted state, the sleeve is completely accommodated, occupying very small space and saving space.

[0007] Further, the connecting assembly comprises a pull rope, the upper end of the corrugated expansion bag is provided with a first docking ring, the upper end of the third ring cylinder is provided with a second docking ring, one end of the pull rope is connected to the first docking ring, and the other end of the pull rope is connected to the second docking ring. The air outlet of the fan is connected with a hose, the other end of the hose is connected in communication with the corrugated expansion bag, and a filter layer is arranged in the interior of the conduit close to the upper pipe opening of the conduit. The fan is four, which are arranged at equal intervals in the annular box, the conduit is four, which are connected with the air inlets of the corresponding fans, and the electric control device is used for controlling the four fans to work simultaneously. Four fans arranged at equal intervals are synchronously controlled by the electric control device, and multiple fans work simultaneously, which can quickly and uniformly inflate the corrugated bag, avoid the problem that uneven force or slow expansion of the bag body is caused by single-point inflation, even if a single fan fails, the remaining fans can still work, improving the reliability and fault tolerance of the system. The fan sucks external air into the conduit, filters it and then sends it into the corrugated expansion bag through the hose. The filter layer can prevent leaves, dust, insects and other sundries from being sucked into the fan and entering the corrugated bag, protecting the fan and the bag body and avoiding blockage.

[0008] Further, the inside of the annular box is fixedly provided with a partition plate, the inside of the annular box is divided into an upper space and a lower space by the partition plate, the upper space and the lower space are independent of each other, the electric control device and the fan are fixedly installed in the lower space, the corrugated expansion bag, the connecting assembly and the auxiliary assembly are arranged in the upper space, the conduit is fixedly connected with the partition plate, the lower end of the conduit extends to the lower space, and the partition plate is used for supporting the conduit. The inside of the annular box is divided into the upper space and the lower space by the partition plate, the dry and wet are separated, and key equipment is protected; the electric control device and the fan are protected in the lower dry space, are physically isolated from the upper space which may be filled with water, and the electrical safety and the equipment life are greatly improved. Even if a small amount of accumulated water seeps into the upper space of the annular box from the gap of the cover plate, the key equipment in the lower space is not affected.

[0009] Further, the cover plate is made of polyethylene material, and the corrugated expansion bag is made of double-layer composite rubber material, the inner layer is an airtight rubber layer, and the outer layer is a tear-resistant fiber reinforced layer. The polyethylene cover plate is light and corrosion-resistant, the corrugated bag with double-layer material ensures the structural strength, puncture resistance and tear resistance after inflation, and ensures excellent airtightness to prevent air leakage.

[0010] Further, the upper end of the corrugated expansion bag is provided with a gas release valve, the gas release valve is an electromagnetic control valve, the electromagnetic control valve is electrically connected with the electric control device, the electric control device comprises a remote controller, the electromagnetic control valve can be remotely opened and closed, and is used for recovering the corrugated expansion bag. Signals are sent to the electric control device through the remote controller, the electromagnetic gas release valve is controlled to be opened, air in the bag is rapidly discharged, and the device returns to the embedded state. After the flood control is finished, the gas release valve can be triggered by one key at a remote place without manual operation, so that the corrugated bag is quickly deflated and collapsed, and returns to the original state, and the recovery efficiency is greatly improved. The operator can complete the resetting of the device without contacting the accumulated water which may be contaminated on the site, and the operation is safe and convenient.

[0011] Optionally, the fan is in communication with an air compressor fixedly installed in the inside of the annular box, an air filter is installed at the air inlet end of the air compressor, an inflation pipe is installed at the air outlet end of the air compressor, the inflation pipe is connected with the air inlet end of the corrugated expansion bag, and a gas pressure regulating valve is arranged on the inflation pipe and used for controlling the inflation rate and the gas pressure in the bag. The air compressor can provide higher exhaust pressure than the fan, so that the corrugated bag is inflated more quickly and more sturdily. The gas pressure regulating valve can accurately control the gas pressure in the bag, so that the bag is not burst due to over inflation or not supported due to under inflation.

[0012] The beneficial effects of the present application: by integrating the annular box, the corrugated expansion bag, the fan and the electric control device into one body, and pre-burying them around the cable well, the fan is used to inflate the corrugated expansion bag, so that the corrugated expansion bag is inflated to form a physical water-blocking barrier, which replaces the traditional passive flood prevention mode such as sandbags and baffles. Through the intelligent control of the electric control device on the fan, the automatic process from sensing (or receiving instructions) to execution (inflation water-blocking) is realized. Compared with manual sandbag stacking, the device can realize one-key starting or automatic starting, and the response speed is extremely fast, which can gain valuable time for substation flood prevention. The device completely avoids heavy manual handling and installation work, reduces labor intensity and labor cost, and solves the cleaning and disposal problem of one-time flood prevention materials such as sandbags, and the device can be recycled and reused.

[0013] When the corrugated expansion bag is inflated and expanded upward, the third ring cylinder in the innermost layer is pulled up through the pull rope, the third ring cylinder drives the second ring cylinder to stretch out from the first ring cylinder, and a high and rigid support framework is formed. The telescopic structure of the multi-layer sleeve (first, second and third ring cylinders) and the pull rope are used as the connecting components. The multi-layer sleeve is unfolded when the corrugated bag is inflated, which provides vertical guidance and radial support for the high and large bag body, prevents it from tilting, falling or excessive shaking, and ensures the stability of the water-blocking barrier. In the contracted state, the sleeve is completely stored, occupying very small space, saving space. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a use state schematic diagram of the present application; Figure 2 is a main view schematic diagram of the present application; Figure 3 is a Figure 2 enlarged view of A in the present application; Figure 4 is a top view schematic diagram of the present application; Figure 5 is a bottom view schematic diagram of the present application; Figure 6 is a cover plate-free structure schematic diagram of the present application; Figure 7 is a Figure 6 enlarged view of B in the present application.

[0015] In the figure: 1 annular box, 2 cover plate, 3 corrugated expansion bag, 4 fan, 5 conduit, 6 electric control device, 7 through hole, 8 first ring cylinder, 9 second ring cylinder, 10 third ring cylinder, 11 first butt joint ring, 12 second butt joint ring, 13 pull rope, 14 hose, 15 partition plate, 16 upper space, 17 lower space, 18 cable well. DETAILED DESCRIPTION

[0016] The invention will now be described in further detail with reference to the accompanying drawings. It should be noted that all directional terms such as up, down, front, back, left, and right appearing in this invention are... Figure 1 The diagram is for reference only, and all directional terms are not intended to limit the invention, but are merely for clearer explanation and interpretation. Example 1

[0017] like Figures 1-7 As shown in the figure, this embodiment discloses an anti-blocking device for pumping out accumulated water in a substation, including an annular box 1. The annular box 1 is pre-embedded around the cable well 18 of the substation, and its upper surface is flush with the ground. A cover plate 2 is detachably installed at the upper end of the annular box 1. A corrugated expansion bladder 3 is installed inside the annular box 1, and a fan 4 is connected to the corrugated expansion bladder 3. The fan 4 is fixedly installed at the inner bottom of the annular box 1. The air inlet of the fan 4 is connected to a duct 5, which extends to the upper outer part of the annular box 1. An electrical control device 6 is installed inside the annular box 1, and the fan 4 is connected to the electrical control device 6. The corrugated expansion bladder 3 is connected to auxiliary components through connecting components. By integrating the annular box 1, the corrugated expansion bladder 3, the fan 4, and the electrical control device 6 into one unit and pre-embedding it around the cable well 18, the fan 4 inflates the corrugated expansion bladder 3, causing it to expand and form a physical water barrier, replacing traditional passive flood control methods such as sandbags and baffles. The intelligent control of the blower 4 by the electronic control device 6 achieves an automated process from sensing (or receiving instructions) to execution (inflating and blocking water). Compared to manually stacking sandbags, this device can achieve one-button start or automatic start with extremely fast response, saving valuable time for flood control at the substation. It completely avoids heavy manual handling and installation work, reducing labor intensity and labor costs. It solves the problem of cleaning and disposal of disposable flood control materials such as sandbags, and the device is recyclable and reusable.

[0018] For better performance, the upper end of the annular box 1 has a groove, and the lower surface of the cover plate 2 has a protrusion. The cover plate 2 is placed on the upper end of the annular box 1 by engaging the protrusion inside the groove. The cover plate 2 has a through hole 7, through which the guide tube 5 passes and is slidably connected. The cover plate 2 can be easily lifted, facilitating the inspection and maintenance of the internal components of the annular box 1. During the expansion and contraction of the corrugated bladder, the guide tube 5 is slidably connected to the through hole 7 to avoid structural interference or damage. During inflation, the corrugated bladder pushes up the cover plate 2, while the guide tube 5 remains stationary. The cover plate 2 slides upward relative to the guide tube 5, which acts as a guide to prevent tilting.

[0019] For better effect, the auxiliary assembly comprises a first ring cylinder 8, a second ring cylinder 9 and a third ring cylinder 10, the lower end of the first ring cylinder 8 is fixedly connected to the inner ground of the annular box 1, and the first ring cylinder 8 is arranged on the inner side of the corrugated expansion bag 3, the lower end of the second ring cylinder 9 is slidably connected to the upper end of the first ring cylinder 8, and the second ring cylinder 9 is accommodated in the interior of the first ring cylinder 8, and the lower end of the third ring cylinder 10 is slidably connected to the upper end of the second ring cylinder 9, and the third ring cylinder 10 is accommodated in the interior of the second ring cylinder 9. When the corrugated bag is inflated and expands upward, the innermost third ring cylinder 10 is pulled up by the pull rope 13, the third ring cylinder 10 drives the second ring cylinder 9 to stretch out of the first ring cylinder 8, and a high and rigid support framework is formed. The telescopic structure of the multi-layer sleeve (the first, second and third ring cylinders 10) and the pull rope 13 are used as the connecting assembly. The multi-layer sleeve is unfolded when the corrugated bag expands, providing vertical guidance and radial support for the high and large bag body, preventing it from tilting, falling or excessive shaking, and ensuring the stability of the water blocking barrier. In the contracted state, the sleeve is completely accommodated, occupying very small space and saving space.

[0020] For better effect, the connecting assembly comprises a pull rope 13, the upper end of the corrugated expansion bag 3 is connected and provided with a first docking ring 11, the upper end of the third ring cylinder 10 is connected and provided with a second docking ring 12, one end of the pull rope 13 is connected to the first docking ring 11, and the other end of the pull rope 13 is connected to the second docking ring 12. The air outlet of the fan 4 is connected with a hose 14, the other end of the hose 14 is connected in communication with the corrugated expansion bag 3, and a filter layer is arranged in the interior of the guide pipe 5 close to the upper pipe opening of the guide pipe 5. The fan 4 is four, which are arranged at equal intervals in the annular box 1, the guide pipe 5 is four, which are connected with the air inlets of the corresponding fans 4, and the electric control device 6 is used for controlling the four fans 4 to work simultaneously. The four fans 4 arranged at equal intervals are synchronously controlled by the electric control device 6, and the multiple fans 4 work simultaneously, which can quickly and uniformly inflate the corrugated bag, avoid the problem that uneven force or slow expansion of the bag body is caused by single-point inflation, even if a single fan 4 fails, the remaining fans 4 can still work, improving the reliability and fault tolerance of the system. The fan 4 sucks external air into the guide pipe 5, and after filtration, the air is sent into the corrugated expansion bag 3 through the hose 14. The filter layer can prevent leaves, dust, insects and other sundries from being sucked into the fan 4 and entering the corrugated bag, protecting the fan 4 and the bag body, and avoiding blockage.

[0021] For better effect, the inside of the annular box 1 is fixedly provided with a partition plate 15, the inside of the annular box 1 is divided into an upper space 16 and a lower space 17 by the partition plate 15, the upper space 16 and the lower space 17 are independent of each other, the electric control device 6 and the fan 4 are fixedly installed in the lower space 17, the corrugated expansion bag 3, the connecting assembly and the auxiliary assembly are arranged in the upper space 16, the conduit 5 is fixedly connected with the partition plate 15, the lower end of the conduit 5 extends to the lower space 17, and the partition plate 15 is used for supporting the conduit 5. The inside of the annular box 1 is divided into the upper space 16 and the lower space 17 by the partition plate 15, the dry and wet are separated, and the key equipment is protected, the electric control device 6 and the fan 4 and other electrical equipment are protected in the lower dry space, and are physically isolated from the upper space that may be waterlogged, so that the electrical safety and the equipment life are greatly improved. Even if a small amount of accumulated water seeps into the upper part of the annular box 1 from the gap of the cover plate 2, the key equipment in the lower part is not affected.

[0022] For better effect, the cover plate 2 is made of polyethylene material, and the corrugated expansion bag 3 is made of double-layer composite rubber material, the inner layer is an airtight rubber layer, and the outer layer is a tear-resistant fiber reinforced layer. The polyethylene cover plate 2 is light and corrosion-resistant, and the double-layer material of the corrugated bag ensures the structural strength, puncture resistance and tear resistance after inflation, and ensures excellent airtightness to prevent air leakage.

[0023] For better effect, a deflation valve is installed at the upper end of the corrugated expansion bag 3, the deflation valve is an electromagnetic control valve, the electromagnetic control valve is electrically connected with the electric control device 6, the electric control device 6 comprises a remote controller, the electromagnetic control valve can be remotely started and stopped, and is used for deflation and recovery of the corrugated expansion bag 3. Signals are sent to the electric control device 6 through the remote controller, the electromagnetic deflation valve is controlled to be opened, air in the bag is rapidly discharged, and the device returns to the embedded state. After the flood control is completed, manual operation is not needed, the deflation valve can be triggered at a remote place, the corrugated bag is rapidly deflated and collapsed, and the original state is restored, so that the recovery efficiency is greatly improved. The operator does not need to contact the accumulated water on the site, and can complete the device reset safely and conveniently. Embodiment 2

[0024] The embodiment discloses a substation accumulated water pumping and draining anti-blocking device, which is different from the embodiment 1 in that the fan 4 is in communication with an air compressor fixedly installed in the inside of the annular box 1, an air filter is installed at the air inlet end of the air compressor, an inflation pipe is installed at the air outlet end of the air compressor, and the inflation pipe is connected with the air inlet end of the corrugated expansion bag 3. An air pressure regulating valve is arranged on the inflation pipe and used for controlling the inflation rate and the air pressure in the bag. The air compressor can provide higher exhaust pressure than the fan 4, so that the corrugated bag is more rapidly and sturdily inflated. The air pressure regulating valve can accurately control the air pressure in the bag, so that the bag is prevented from being burst due to overinflation or not being supported due to underinflation.

[0025] The above merely describes preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent substitutions or changes within the technical scope disclosed by the present application and according to the technical solutions and concepts of the present application, which should be covered within the protection scope of the present application.

Claims

1. A device for preventing blockage during water drainage in a substation, comprising an annular box, wherein the annular box is pre-embedded around the cable well of the substation, and its upper surface is flush with the ground, characterized in that, The annular box has a detachable cover plate at its upper end. Inside the annular box is a corrugated expansion bladder, which is connected to a fan. The fan is fixedly installed at the bottom inside the annular box. The fan's air inlet is connected to a duct, which extends to the top outside of the annular box. Inside the annular box is an electrical control device, and the fan is connected to the electrical control device. The corrugated expansion bladder is connected to an auxiliary component via a connecting assembly.

2. The anti-clogging device for substation water drainage according to claim 1, characterized in that, The annular box has a groove at its upper end, and the cover plate has a protrusion on its lower surface. The cover plate is placed on the upper end of the annular box by engaging with the groove through the protrusion. The cover plate has a through hole on its surface, and the guide tube passes through the through hole and is slidably connected to the through hole.

3. The anti-clogging device for substation water drainage according to claim 2, characterized in that, The auxiliary component includes a first ring cylinder, a second ring cylinder, and a third ring cylinder. The lower end of the first ring cylinder is fixedly connected to the inner ground of the annular box and is disposed inside the corrugated expansion bladder. The lower end of the second ring cylinder is slidably connected to the upper end of the first ring cylinder and is housed inside the first ring cylinder. The lower end of the third ring cylinder is slidably connected to the upper end of the second ring cylinder and is housed inside the second ring cylinder.

4. The anti-clogging device for substation water drainage according to claim 3, characterized in that, The connecting assembly includes a pull rope, a first docking ring is connected to the upper end of the corrugated expansion bladder, a second docking ring is connected to the upper end of the third ring cylinder, one end of the pull rope is connected to the first docking ring, and the other end of the pull rope is connected to the second docking ring.

5. The anti-clogging device for substation water drainage according to claim 1, characterized in that, The air outlet of the fan is connected to a flexible hose, and the other end of the flexible hose is connected to the corrugated expansion bladder; a filter layer is provided inside the duct near the upper opening of the duct.

6. The anti-clogging device for substation water drainage according to claim 1, characterized in that, There are four fans, which are arranged at equal intervals inside the annular box. There are four ducts, which are connected to the air inlets of their respective fans. The electrical control device is used to control the four fans to work simultaneously.

7. The anti-clogging device for substation water drainage according to claim 1, characterized in that, The annular box is fixedly equipped with a partition, which divides the interior of the annular box into an upper space and a lower space. The upper space and the lower space are independent of each other. The electrical control device and the fan are fixedly installed in the lower space. The corrugated expansion bladder, the connecting assembly and the auxiliary assembly are all located in the upper space. The conduit is fixedly connected to the partition, and the lower end of the conduit extends into the lower space. The partition is used to support the conduit.

8. The anti-clogging device for substation water drainage according to claim 1, characterized in that, The cover plate is made of polyethylene material, and the corrugated expansion bladder is made of double-layer composite rubber material, with an inner layer of airtight rubber and an outer layer of tear-resistant fiber reinforcement.

9. The anti-clogging device for substation water drainage according to claim 1, characterized in that, The fan is connected to an air compressor that is fixedly installed inside the annular box. An air filter is installed at the air inlet of the air compressor, and an inflation pipe is installed at the air outlet of the air compressor. The inflation pipe is connected to the air inlet of the corrugated expansion bladder. The inflation pipe is equipped with a pressure regulating valve to control the inflation rate and the air pressure inside the bladder.

10. The anti-clogging device for substation water drainage according to claim 1, characterized in that, The upper end of the corrugated expansion bladder is equipped with a vent valve, which is an electromagnetic control valve. The electromagnetic control valve is electrically connected to an electrical control device, and the electrical control operation includes a remote controller. The electromagnetic control valve can be remotely opened and closed for venting and recovering air from the corrugated expansion bladder.

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