Ring main unit waterproof device linked with water level monitoring

Abstract

The invention provides a ring main unit waterproof device linked with water level monitoring. The ring main unit waterproof device comprises a waterproof bag; the ring main unit is arranged in the waterproof bag; the driving mechanism is arranged at the top of the ring main unit; the liquid level monitoring device is used for monitoring whether the water level of the surrounding environment of the ring main unit reaches an early warning value or not, if yes, the driving mechanism is controlled to drive the waterproof bag to be tightened, and if not, the driving mechanism is controlled to drive the waterproof bag to be opened. The water level condition around the ring main unit is monitored in real time, the waterproof bag is automatically tightened when the water level reaches the early warning value, water can be effectively prevented from entering the ring main unit, equipment faults and power grid accidents caused by water disasters are reduced, and therefore the safety and reliability of a power grid system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power systems, and in particular to a ring network cabinet waterproof device linked with water level monitoring. Background Art

[0002] At present, the detection quantities of ring network cabinets are some hard indicators such as voltage, current, frequency, partial discharge, and mechanical characteristics of ring network cabinets, while ignoring some hidden data such as temperature, humidity, and equipment aging caused by condensation when the ring network cabinet is working. In fact, with the improvement of my country's industrial manufacturing level, the hard indicators such as working voltage and current of ring network cabinets have fully met the working requirements. On the contrary, the accident rate caused by insulation aging caused by excessive humidity and condensation during the operation of ring network cabinets has continued to rise. In addition, for cities in subtropical monsoon climate areas, extreme rainstorms often occur in summer. Once the rainfall exceeds the drainage capacity of the drainage system, it is easy to cause waterlogging, which threatens the normal operation of the ring network cabinet. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a ring main unit waterproof device linked with water level monitoring, so as to perform real-time monitoring and analysis and early warning on the overall operating status of the ring main unit, and intelligently link the waterproof device to ensure the safe and stable operation of the power grid equipment.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a ring main unit waterproof device linked with water level monitoring, comprising:

[0005] Waterproof bag;

[0006] A ring main unit, arranged in the waterproof bag;

[0007] A driving mechanism is arranged on the top of the ring main unit;

[0008] The liquid level monitoring device is used to monitor whether the water level of the environment around the ring network cabinet reaches the warning value. If so, the driving mechanism is controlled to drive the waterproof bag to tighten; if not, the driving mechanism is controlled to drive the waterproof bag to open.

[0009] Furthermore, the liquid level monitoring device includes an ultrasonic transmitter, an ultrasonic receiver and a control circuit, the ultrasonic transmitter is used to emit ultrasonic waves, the ultrasonic receiver is used to receive echoes proportional to the reflection distance, the control circuit amplifies the reflected ultrasonic signal through a signal amplifier, and calculates the echo distance, and determines whether the water level of the surrounding environment of the ring network cabinet reaches the warning value based on the echo distance.

[0010] Furthermore, a bag opening is provided on the top of the waterproof bag, and a rope is arranged around the bag opening;

[0011] The driving mechanism drives the waterproof bag to be tightened or opened by tightening or loosening the rope.

[0012] Furthermore, the driving mechanism includes an electric actuator and a reel, the reel is connected to the rope, and the electric actuator is used to drive the reel to rotate forward to roll up the rope to tighten the rope, at which time the waterproof bag is tightened, or drive the reel to rotate reversely to release the rope to loosen the rope, at which time the waterproof bag is opened.

[0013] Furthermore, it also includes an opening mechanism, which is used to open the waterproof bag when the rope is loosened, and the gap between the waterproof bag and the ring network cabinet and the bag opening form a heat dissipation channel of the ring network cabinet.

[0014] Furthermore, the waterproof bag is transparent.

[0015] The ring main unit waterproof device linked with water level monitoring provided by the embodiment of the present invention has the following beneficial effects:

[0016] By real-time monitoring of the water level around the ring main unit and automatically tightening the waterproof bag when the water level reaches the warning value, water can be effectively prevented from entering the ring main unit, reducing equipment failures and power grid accidents caused by water damage, thereby improving the safety and reliability of the power grid system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0018] Figure 1 The present invention is a schematic structural diagram of a ring main unit waterproof device linked with water level monitoring in an embodiment of the present invention.

[0019] Figure 2 The present invention is a flowchart of a waterproof device for a ring main unit linked with water level monitoring in an embodiment of the present invention.

[0020] Markings in the figure:

[0021] 1- waterproof bag; 2- ring main unit; 3- electric actuator; 4- reel. DETAILED DESCRIPTION

[0022] The detailed description of the drawings is intended as an illustration of the current embodiment of the present application, and is not intended to represent the only form in which the present application can be implemented. It should be understood that the same or equivalent functions can be accomplished by different embodiments intended to be included in the spirit and scope of the present application.

[0023] See also Figures 1-2 The embodiment of the present invention provides a ring main unit waterproof device linked with water level monitoring, comprising:

[0024] Waterproof bag;

[0025] A ring main unit, arranged in the waterproof bag;

[0026] A driving mechanism is arranged on the top of the ring main unit;

[0027] The liquid level monitoring device is used to monitor whether the water level of the environment around the ring network cabinet reaches the warning value. If so, the driving mechanism is controlled to drive the waterproof bag to tighten; if not, the driving mechanism is controlled to drive the waterproof bag to open.

[0028] Specifically, the waterproof bag is made of high-strength waterproof material, such as polyurethane (PU) coated fabric or thermoplastic polyurethane (TPU) film, to ensure that the waterproof performance is maintained even under extreme conditions; the ring network cabinet is located inside the waterproof bag and is the object of protection; a fixing device, such as a bracket or a base, may be provided at the bottom of the ring network cabinet to ensure that it is stable and motionless in the waterproof bag. Under the signal control of the liquid level monitoring device, the driving mechanism can control the tightening and opening of the waterproof bag by contracting or releasing ropes, belts or other tightening elements. When the water level is detected to rise to the warning value, the liquid level monitoring device triggers the driving mechanism, and the driving mechanism starts working to tighten the waterproof bag to ensure that the ring network cabinet is not damaged by water. After the water level drops to a safe level, the liquid level monitoring device controls the driving mechanism again to restore the waterproof bag to the open state, and the ring network cabinet resumes normal operation.

[0029] The embodiment of the present invention monitors the water level around the ring main unit in real time and automatically tightens the waterproof bag when the water level reaches the warning value, thereby effectively preventing water from entering the ring main unit, reducing equipment failures and power grid accidents caused by water damage, and thus improving the safety and reliability of the power grid system.

[0030] Furthermore, the liquid level monitoring device includes an ultrasonic transmitter, an ultrasonic receiver and a control circuit, the ultrasonic transmitter is used to emit ultrasonic waves, the ultrasonic receiver is used to receive echoes proportional to the reflection distance, the control circuit amplifies the reflected ultrasonic signal through a signal amplifier, and calculates the echo distance, and determines whether the water level of the surrounding environment of the ring network cabinet reaches the warning value based on the echo distance.

[0031] Specifically, an ultrasonic transmitter is a device that can emit ultrasonic waves and works by sending sound wave pulses of a specific frequency (such as 40kHz). The ultrasonic receiver is used to receive ultrasonic signals reflected from an object. The control circuit amplifies the weak echo signal received from the ultrasonic receiver through the signal amplifier, processes the signal output by the signal amplifier, and performs calculations and logical judgments. Specifically, the control circuit sends a 10 microsecond (us) TTL (transistor-transistor logic) level signal to the Trig terminal of the ultrasonic transmitter, which triggers the ultrasonic transmitter to emit ultrasonic waves. After receiving the trigger signal, the ultrasonic transmitter sends 8 40kHz periodic level signals, which propagate outward in the form of ultrasonic waves. When the ultrasonic wave encounters an obstacle (such as the water surface), it will be reflected back, and the ultrasonic receiver detects these reflected ultrasonic waves. Once the ultrasonic receiver detects the echo, it will output an echo signal. The pulse width of this signal is proportional to the time required for the ultrasonic wave to go back and forth. The control circuit measures the time difference from the emission of the ultrasonic wave to the receipt of the echo signal. Because the propagation speed of sound waves in the air is known (approximately 343 meters / second), the distance can be calculated by the following formula:

[0032] Distance = (speed of sound × time difference) / 2

[0033] The reason for dividing by 2 here is that the sound waves need to travel back and forth, so the actual distance is half of the total journey.

[0034] The control circuit compares the calculated distance with the preset warning value. If the calculated distance is less than or equal to the warning value, it indicates that the water level has reached or exceeded the safe water level. If the water level reaches the warning value, the control circuit sends a signal to the main control board, which then drives the motor to tighten the waterproof bag through the transmission device, thereby protecting the ring network cabinet.

[0035] In this way, the liquid level monitoring device can monitor the water level around the ring main unit in real time and automatically activate protective measures when the water level is too high to ensure the safe operation of the ring main unit.

[0036] Furthermore, a bag opening is provided on the top of the waterproof bag, and a rope is arranged around the bag opening;

[0037] The driving mechanism drives the waterproof bag to be tightened or opened by tightening or loosening the rope.

[0038] Specifically, a bag opening is provided on the top of the waterproof bag, and the bag opening is large enough so that the ring main unit can be easily placed therein. The design of the bag opening should take into account the convenience of equipment installation and maintenance, and also ensure that it can be effectively sealed when the waterproof bag is tightened. A rope is arranged around the bag opening, one end of the rope is fixed to the waterproof bag, and the other end is connected to the driving mechanism. The function of the rope is to control the tightening or opening of the waterproof bag by tightening or loosening under the action of the driving mechanism.

[0039] When the liquid level monitoring device detects that the water level reaches the warning value, the control circuit sends a signal to the drive mechanism. The drive mechanism (such as an electric actuator) starts to work and tightens the rope through a drum or other transmission device. As the rope is gradually tightened, the bag opening of the waterproof bag will also close, thereby sealing the ring main unit in the waterproof bag to prevent water from entering.

[0040] When the water level drops to a safe level, the liquid level monitoring device will send a signal to the drive mechanism again, and the drive mechanism will work in reverse to release the rope. When the rope is loosened, the waterproof bag will naturally open due to its own elasticity or support structure and return to its initial state, ensuring the normal operation and heat dissipation of the ring network cabinet.

[0041] Furthermore, the driving mechanism includes an electric actuator and a reel, the reel is connected to the rope, and the electric actuator is used to drive the reel to rotate forward to roll up the rope to tighten the rope, at which time the waterproof bag is tightened, or drive the reel to rotate reversely to release the rope to loosen the rope, at which time the waterproof bag is opened.

[0042] Specifically, an electric actuator is a device that converts electrical energy into mechanical energy, such as a motor. The electric actuator can accurately control the rotation angle and force according to the control signal, thereby achieving precise control of the reel. The reel is a cylindrical component, and its surface usually has grooves or holes to fix the rope. The reel is connected to the electric actuator. When the electric actuator works, the reel rotates accordingly.

[0043] When the liquid level monitoring device detects that the water level reaches the warning value, the control circuit will send a signal to the electric actuator. After receiving the signal, the electric actuator starts to rotate forward, and the drive drum also rotates forward. The forward rotation of the drum causes the rope wound on it to be rolled up, thereby tightening the rope. As the rope is tightened, the bag opening of the waterproof bag gradually closes, and the waterproof bag is tightened, sealing the ring network cabinet inside to prevent water from entering. When the water level drops to a safe level, the liquid level monitoring device sends a reverse signal to the electric actuator, and the electric actuator rotates in the reverse direction, driving the drum to rotate in the reverse direction. The reverse rotation of the drum releases the rope, and the rope is naturally loosened due to the elasticity of the waterproof bag itself and the supporting structure. After the rope is loosened, the bag opening of the waterproof bag reopens, and the ring network cabinet resumes normal operation and heat dissipation.

[0044] Furthermore, it also includes an opening mechanism, which is used to open the waterproof bag when the rope is loosened, and the gap between the waterproof bag and the ring network cabinet and the bag opening form a heat dissipation channel for the ring network cabinet.

[0045] Specifically, the main purpose of the expansion mechanism is to ensure that the waterproof bag can be effectively expanded when the rope is loosened, to provide the necessary heat dissipation space for the ring main unit, and to form a heat dissipation channel. For example, the expansion mechanism may include components such as springs, air pressure or hydraulic cylinders, and retractable brackets, which can provide sufficient force to keep the waterproof bag in an expanded state when the rope is loosened.

[0046] When the water level is normal, the expansion mechanism is activated to keep the waterproof bag open, ensuring that there is enough space around the ring main unit for air circulation and forming a heat dissipation channel. When the liquid level monitoring device detects that the water level rises and reaches the warning value, the expansion mechanism will be released or retracted first, allowing the electric actuator to tighten the rope through the drum, thereby tightening the waterproof bag and protecting the ring main unit. After the water level drops to a safe level, the electric actuator rotates in the opposite direction and releases the rope. At this time, the expansion mechanism is activated again to provide force to open the waterproof bag.

[0047] The expansion mechanism ensures that a certain gap is maintained between the waterproof bag and the ring main unit, which allows air to circulate and helps dissipate heat from the ring main unit. The opening of the waterproof bag remains open under the action of the expansion mechanism, forming a natural vent as part of the heat dissipation channel. With this design, the ring main unit waterproof device can not only provide protection when the water level rises, but also quickly restore the normal operation and heat dissipation of the ring main unit after the water level drops, thereby improving the reliability and efficiency of the entire system.

[0048] In one example, the opening mechanism is a bracket hinged to the outer surface of the ring main unit cabinet, and the drum is connected to the hinged bracket by a rope. When the electric actuator is working, the drum rotates to release or roll up the rope. Multiple hinged brackets are fixed on the four sides of the ring main unit cabinet and can rotate around the hinge point. The bracket is designed to be able to open and cover the surface of the ring main unit to provide protection. The drum is designed to include a drum shaft, and two drums are respectively installed at both ends of the drum shaft. Each drum is responsible for a different rope. The waterproof bag rope drum is used to roll up or release the rope of the waterproof bag, and the bracket rope drum is used to roll up or release the rope of the bracket. When the rope of the bracket is released, due to the gravity of the bracket, when the rope is released, the bracket will naturally sag and open under the action of gravity.

[0049] Furthermore, the waterproof bag is transparent.

[0050] Specifically, transparent waterproof bags allow maintenance personnel to directly observe the status of the ring main unit, including any possible signs of failure or abnormal conditions, without opening the bag. The transparent material facilitates visual inspection by technicians, simplifying the daily maintenance and troubleshooting process. You can choose transparent materials with strong weather resistance, such as polyethylene (PE), polyvinyl chloride (PVC) or special coated polyester to ensure that the waterproof bag will not age or yellow during long-term use in outdoor environments.

[0051] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A ring main unit waterproof device linked with water level monitoring, characterized in that: include: Waterproof bag; A ring main unit, arranged in the waterproof bag; A driving mechanism is arranged on the top of the ring main unit; The liquid level monitoring device is used to monitor whether the water level of the environment around the ring network cabinet reaches the warning value. If so, the driving mechanism is controlled to drive the waterproof bag to tighten; if not, the driving mechanism is controlled to drive the waterproof bag to open.

2. The waterproof device for ring main unit according to claim 1, characterized in that: The liquid level monitoring device includes an ultrasonic transmitter, an ultrasonic receiver and a control circuit. The ultrasonic transmitter is used to emit ultrasonic waves, and the ultrasonic receiver is used to receive echoes proportional to the reflection distance. The control circuit amplifies the reflected ultrasonic signal through a signal amplifier and calculates the echo distance. It is judged whether the water level of the surrounding environment of the ring network cabinet reaches the warning value based on the echo distance.

3. The waterproof device for ring main unit according to claim 1, characterized in that: The waterproof bag is provided with a bag opening on the top, and a rope is arranged around the bag opening; The driving mechanism drives the waterproof bag to be tightened or opened by tightening or loosening the rope.

4. The waterproof device for ring main unit according to claim 3, characterized in that: The driving mechanism includes an electric actuator and a drum, wherein the drum is connected to the rope, and the electric actuator is used to drive the drum to rotate forward to roll up the rope to tighten the rope, at which time the waterproof bag is tightened, or to drive the drum to rotate reversely to release the rope to loosen the rope, at which time the waterproof bag is opened.

5. The waterproof device for ring main unit according to claim 4, characterized in that: It also includes an opening mechanism, which is used to open the waterproof bag when the rope is loosened, and the gap between the waterproof bag and the ring network cabinet and the bag opening form a heat dissipation channel of the ring network cabinet.

6. The waterproof device for ring main unit according to claim 5, characterized in that: The waterproof bag is transparent.

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