Active protection alarm device for safe operation of electric power facilities
By installing a combination of cyclone separators and pressure sensors inside the prefabricated substation, the safety hazards and poor heat dissipation caused by the entry of insects and animals have been solved, thus achieving safe operation and efficient heat dissipation of power facilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU QINGDA HUILIAN OPTOELECTRONICS RES INST CO LTD
- Filing Date
- 2025-03-05
- Publication Date
- 2026-05-01
AI Technical Summary
Ventilation openings in prefabricated substations allow insects and animals to enter, affecting the safety and heat dissipation of electrical facilities. Dust and other debris reduce the insulation level, creating safety hazards.
A cyclone separator and pressure sensor are installed inside the box-type substation. The cyclone separator separates incoming debris and small animals, and a storage bin is used to store the debris. The pressure sensor monitors for filter blockage, and an alarm device reminds the user to clean the filter. The system is also combined with a check valve and pesticides for treatment.
It effectively filters out debris and small animals, ensuring the safe operation of power facilities, preventing overheating, improving heat dissipation efficiency and insulation performance, and reducing safety hazards.
Smart Images

Figure CN224191464U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical facility monitoring technology, and in particular to an active protection alarm device for the safe operation of power facilities. Background Technology
[0002] Prefabricated substations are now widely used, but their heat dissipation is poor, often requiring additional ventilation openings to improve cooling. Due to the high temperatures inside these substations, insects and animals can easily enter through these openings, damaging electrical equipment and creating safety hazards. Furthermore, dust and other debris entering the substation during ventilation can adhere to the surfaces of electrical equipment, reducing insulation levels and heat dissipation, thus affecting the safe operation of the substation. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides an active protection alarm device for the safe operation of power facilities. By adding an active protection device to the existing box-type substation, debris entering the box-type substation is filtered and removed in advance, ensuring the safety of power facilities.
[0004] To solve the above-mentioned technical problems, the present invention provides a technical solution: an active protection alarm device for the safe operation of power facilities, comprising a substation cabinet, a cyclone separator, and pressure sensors. The substation cabinet is equipped with power transformation facilities, and has an air inlet and an air outlet. An exhaust fan is installed at the air outlet. The cyclone separator is installed inside the substation cabinet. The inlet of the cyclone separator is connected to the air inlet through a connecting pipe, and the inlet of the cyclone separator is higher than the air inlet. The outlet of the cyclone separator is connected to a storage tank. A filter screen is installed inside the air outlet pipe of the cyclone separator. Two pressure sensors are respectively installed on both sides of the filter screen.
[0005] Furthermore, the filter screen is arranged in an inverted cone shape at the inlet of the air outlet duct.
[0006] Furthermore, the discharge port of the cyclone separator extends 5-10 cm into the storage tank.
[0007] Furthermore, the cyclone separator is detachably connected to the storage tank, and a rubber gasket is provided at the connection point. An adjustable height pad is provided between the storage tank and the transformer cabinet.
[0008] Furthermore, the storage bin is equipped with water or pesticide.
[0009] Furthermore, a check valve is installed at the air inlet.
[0010] The beneficial effects of this utility model are as follows:
[0011] 1. This application adds an active protection device to the existing box-type substation cabinet to filter and remove debris entering the box-type substation in advance, so as to achieve ventilation and heat dissipation while ensuring the safety of power facilities. The pressure difference between two pressure sensors determines whether the filter is blocked, and then the alarm device reminds personnel to clean it to prevent the hidden danger of excessive temperature in the box-type substation caused by poor ventilation.
[0012] 2. The inlet of the cyclone separator described in this application is higher than the air inlet, with a height difference and tilt angle, which reduces the probability of animals entering, especially reptiles. The cyclone separator can separate debris and small flying animals that enter with the air. The debris and small animals enter the storage bin from the discharge port for easy cleaning. The filter screen can further filter debris and small flying animals that are blown by the wind.
[0013] 3. The filter screen described in this application is arranged in an inverted cone shape at the inlet of the air outlet duct. The cone-shaped filter screen increases the filtration area and ensures the air throughput.
[0014] 4. In this application, the discharge port of the cyclone separator extends 5-10cm into the storage box, increasing the probability that reptiles entering the storage box will crawl back into the cyclone separator from the discharge port.
[0015] 5. The cyclone separator and the storage box of this application are detachably connected, which makes it easy for personnel to remove the storage box to remove the internal debris. The pads are set to facilitate the adjustment of the height of the storage box, and with the cooperation of rubber pads, the sealing between the cyclone separator and the storage box is increased to prevent debris from escaping.
[0016] 6. The storage bin described in this application is equipped with water or insecticide, which can kill animals that enter in a timely manner and prevent dust from being stirred up.
[0017] 7. A check valve is installed at the air inlet of this application to prevent small animals from entering through the air inlet.
[0018] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only three of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of this application.
[0021] Figure 2 This is a schematic diagram of the structure of this application.
[0022] Figure 3 This is a schematic diagram of a cyclone separator.
[0023] In the diagram, 1-Transformer cabinet, 2-Cyclone separator, 3-Pressure sensor, 4-Air inlet, 5-Exhaust outlet, 6-Connecting pipe, 7-Discharge outlet, 8-Storage bin, 9-Exhaust pipe, 10-Filter screen, 11-Padded block. Detailed Implementation
[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.
[0025] In this application, unless otherwise expressly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information. Example 1
[0027] like Figure 1-3 As shown, an active protection alarm device for the safe operation of power facilities includes a substation cabinet 1, a cyclone separator 2, and pressure sensors 3. The substation cabinet 1 is equipped with power transformation facilities, and has an air inlet 4 and an air outlet 5. An exhaust fan is installed at the air outlet 5. The cyclone separator 2 is installed inside the substation cabinet 1. The inlet of the cyclone separator 2 is connected to the air inlet 4 through a connecting pipe 6, and the inlet of the cyclone separator 2 is higher than the air inlet 4. The discharge port 7 of the cyclone separator 2 is connected to a storage tank 8. A filter screen 10 is installed inside the air outlet pipe 9 of the cyclone separator 2. Two pressure sensors 3 are respectively installed on both sides of the filter screen 10.
[0028] The system filters out debris entering the prefabricated substation in advance, ensuring ventilation and heat dissipation while also guaranteeing the safety of electrical facilities. The pressure difference between two pressure sensors 3 determines whether the filter 10 is clogged, and an alarm system alerts personnel to clean it, preventing overheating caused by poor ventilation. The cyclone separator 2 has an inlet higher than the air inlet 4, creating a height difference. The inclined angle of the connecting pipe 6 reduces the probability of animals entering, especially reptiles. The cyclone separator 2 separates debris and small flying animals that enter with the air. These debris and small animals are discharged into the storage bin 8 for easy cleaning. The filter 10 further filters out wind-blown debris and small flying animals.
[0029] Among them, check valves are installed at air inlets 4 to prevent small animals from entering through air inlets 4. Example 2
[0030] like Figure 1 As shown, this embodiment is obtained by describing the technical features of the filter 10 and other features in detail based on the first embodiment. The remaining technical features are the same as those in the first embodiment, and the similarities will not be repeated here. The difference between this embodiment and the first embodiment is that the filter 10 is arranged in an inverted cone shape at the inlet of the air outlet pipe 9.
[0031] In this embodiment, the filter 10 is arranged in an inverted cone shape at the inlet of the air outlet duct 9. The cone-shaped filter 10 increases the filtration area and ensures the air throughput. Example 3
[0032] like Figure 1 As shown, this embodiment is obtained by further describing the technical features such as the discharge port 7 based on embodiment 2. The other technical features are the same as those in embodiment 2. The similarities will not be repeated here. The difference between this embodiment and embodiment 2 is that the discharge port 7 of the cyclone separator 2 extends into the storage box 8 by 5-10cm.
[0033] In this embodiment, the discharge port 7 of the cyclone separator 2 extends 5-10cm into the storage box 8, increasing the probability that reptiles entering the storage box 8 will crawl back into the cyclone separator 2 from the discharge port 7. Example 4
[0034] like Figure 1 As shown, this embodiment is obtained by adding technical features such as pad 11 on the basis of embodiment three. The other technical features are the same as those in embodiment three. The similarities will not be repeated here. The difference between this embodiment and embodiment three is that the cyclone separator 2 and the storage box 8 are detachably connected and a rubber pad is provided at the connection. A height-adjustable pad 11 is provided between the storage box 8 and the transformer cabinet 1. Water or insecticide is provided in the storage box 8.
[0035] In this embodiment, the cyclone separator 2 and the storage box 8 are detachably connected, making it easy for personnel to remove the storage box 8 to clean the internal debris. The pad 11 is set to facilitate the adjustment of the height of the storage box 8, and with the cooperation of the rubber pad, the sealing between the cyclone separator 2 and the storage box 8 is increased to prevent debris from escaping. The storage box 8 is filled with water or insecticide, which can kill animals that enter in time and prevent dust from being stirred up.
[0036] The overall technical solution formed by the above embodiments is used as follows: When the exhaust fan is working to ventilate the box-type substation, outside air enters the cyclone separator 2 through the air inlet 4 and the connecting pipe 6. Debris and small animals in the air are separated by the cyclone separator 2 and fall into the storage box 8 through the discharge port 7. The remaining air is filtered by the filter screen 10 and discharged from the cyclone separator 2 through the air outlet 9, and enters the box-type substation cabinet 1. After cooling the substation facilities in the box-type substation cabinet 1, it is discharged from the exhaust port 5. The pressure sensors 3 on both sides of the filter screen 10 detect the pressure on both sides of the filter screen 10. When the pressure difference reaches the set value, the voice alarm device informs the personnel that the filter screen 10 is blocked, so that the personnel can release compressed air into the air outlet 9 through the air outlet 9 in the box-type substation to blow the debris on the filter screen 10 into the cyclone separator 2, and fall into the storage box 8 under the action of gravity. Afterwards, the personnel can lift up the storage box 8 to clean it.
[0037] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims
1. An active protection alarm device for the safe operation of power facilities, comprising a transformer cabinet, a cyclone separator, and a pressure sensor, wherein the transformer cabinet is equipped with power transformation facilities, and the transformer cabinet is provided with an air inlet and an air outlet, and an exhaust fan is provided at the air outlet, characterized in that: The cyclone separator is installed inside the transformer cabinet. The inlet of the cyclone separator is connected to the air inlet through a connecting pipe, and the inlet of the cyclone separator is higher than the air inlet. The outlet of the cyclone separator is connected to the storage tank. A filter screen is installed inside the air outlet pipe of the cyclone separator, and two pressure sensors are respectively installed on both sides of the filter screen.
2. The active protection alarm device for safe operation of power facilities according to claim 1, characterized in that: The filter screen is in the shape of an inverted cone and is installed at the inlet of the air outlet duct.
3. The active protection alarm device for safe operation of power facilities according to claim 1, characterized in that: The discharge port of the cyclone separator extends 5-10 cm into the storage tank.
4. The active protection alarm device for safe operation of power facilities according to claim 1, characterized in that: The cyclone separator is detachably connected to the storage tank, and a rubber gasket is provided at the connection point. An adjustable height pad is provided between the storage tank and the transformer cabinet.
5. The active protection alarm device for safe operation of power facilities according to claim 1, characterized in that: The storage bin contains water or insecticide.
6. A power facility safety operation active protection alarm device according to any one of claims 1-5, characterized in that: A check valve is installed at the air inlet.