Intelligent air guide system applied to box transformer management

Abstract

The utility model belongs to box -transformer environmental management field, concretely is a kind of intelligent wind guide system applied to box -transformer management, including ventilator casing, the upper opening of ventilator casing is provided with dust screen, the upper portion of dust screen is provided with louvre, the bottom opening of ventilator casing is provided with connecting plate, the middle part of connecting plate is provided with breeze pressure sensor, the opening of connecting plate plate body is provided with intelligent fan, through louvre and dust screen integrated design, dust screen and ventilator casing adopt snap-on type connection, like this can improve the efficiency of disassembly or installation, louvre is outside open mode, can conveniently realize the operation of outside opening louvre to clean filter screen, the screen of dust screen is aluminium screen filter cotton, and it is medium-efficiency F5 cotton for resisting various severe environment, and under 2KPa strong pressure difference, ensure dust-free, heavy rain is not disturbed, forced air cooling air flow is pure, this fan and protective shell split type design, can quickly clean fan blade.

Description

Technical Field

[0001] This utility model relates to the field of transformer substation environmental management, specifically an intelligent air guiding system applied to transformer substation management. Background Technology

[0002] Prefabricated transformers (referred to as "prefabricated substations") are core equipment for power conversion and transmission, widely distributed in complex environments such as deserts and mountains with high humidity and large temperature differences. The interior of these substations is in a semi-enclosed state for extended periods. Due to the high temperature and humidity, problems such as decreased insulation performance, short circuits in electrical components, and corrosion of metal parts arise, seriously threatening equipment lifespan and the safe operation of the power grid. Furthermore, the internal temperature monitoring device only monitors the ambient temperature, resulting in a significant error compared to the substation's internal temperature. For example, if the fan start-up threshold is 60 degrees Celsius, when the ambient temperature reaches 60 degrees Celsius, the substation's internal temperature has already reached 80 degrees Celsius. At 90 degrees Celsius, the transformer is already operating at a high temperature and overheating. The increased winding temperature will accelerate the aging of the transformer's insulation material (epoxy resin). The cumulative effect of heat will gradually reduce the insulation and mechanical properties of the transformer, eventually leading to winding burnout. The cumulative effect of insulation aging: During the flood season from June to September, there is a lot of water accumulation in the site. Affected by environmental factors such as temperature and humidity, especially in humid environments, the aging of the transformer's insulation material (epoxy resin) will be accelerated. This aging is irreversible and will gradually accumulate, leading to a decline in insulation performance. The transformer needs to operate at a suitable ambient temperature to ensure the reliability and stability of the equipment operation.

[0003] Traditional ventilation systems involve installing multiple fans on the outer wall of the transformer box. After a period of use, dust accumulates on the fan blades, requiring cleaning. Integrated fans are directly fixed to the box, which obstructs the fan frame and prevents blade removal. This makes cleaning the fan blades difficult, and the fan cannot switch its operating mode according to changes in the internal temperature of the box, thus reducing the practicality of the online monitoring and early warning device for the energy storage power station's batteries. Therefore, to address these issues, an intelligent ventilation system for transformer box management is proposed. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model proposes an intelligent air guiding system for transformer substation management.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an intelligent air guiding system for transformer substation management, including a ventilator housing, a dustproof net is provided at the upper opening of the ventilator housing, a louver is provided at the upper part of the dustproof net, a connecting plate is provided at the bottom opening of the ventilator housing, a micro wind pressure sensor is provided in the middle of the connecting plate, and an intelligent air guiding fan is provided at the opening of the connecting plate.

[0006] Preferably, the dustproof net also includes a fixing knob, and the fixing knob is provided on the side of the dustproof net. The fixing knob is used to control the engagement and connection between the dustproof net and the ventilator housing.

[0007] Preferably, the micro-wind pressure sensor integrates a power supply and a micro-wind pressure external terminal for power supply and signal output;

[0008] Preferably, the micro wind pressure sensor includes an air outlet hose and an air inlet hose. The air inlet hose is provided at one side interface of the micro wind pressure sensor, and the air outlet hose is provided at the other side interface of the micro wind pressure sensor. The air outlet hose is fixedly installed through the plate body of the connecting plate.

[0009] The advantages of this utility model are:

[0010] 1. This utility model features an integrated design of louvers and dustproof netting. The dustproof netting and the ventilator housing are connected by a snap-fit ​​mechanism, which improves the efficiency of disassembly and installation. The louvers are designed to open outwards, allowing for easy cleaning of the filter screen from the outside. The dustproof netting uses an aluminum mesh screen and medium-efficiency F5 cotton filter to withstand various harsh environments. Under a strong pressure difference of 2KPa, it ensures dust-free operation, is undisturbed by heavy rain, and provides pure airflow during forced air cooling. This separate design of the fan and protective shell allows for quick cleaning of the fan blades.

[0011] 2. This utility model, through the cooperation of a micro-pressure sensor and an intelligent air guide, supports forward / reverse intelligent air guidance. Responding to controller commands, it automatically switches between maximum airflow heat dissipation and ultimate sealing protection. The unique air duct design achieves a reverse airflow efficiency of over 70% of that in forward rotation, ensuring excellent performance in both directions. This guarantees a stable working environment for the box-type transformer and enables timely switching operation after temperature changes occur. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0015] Figure 3 This is an exploded view of the present invention;

[0016] Figure 4 This is a schematic cross-sectional view of the intelligent air guide fan of this utility model.

[0017] In the picture:

[0018] 1. Ventilator housing; 2. Dustproof net; 21. Fixing knob; 3. Louver; 4. Intelligent air guide fan; 5. Connecting plate; 6. Micro wind pressure sensor; 61. Air outlet hose; 62. Air inlet hose. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0021] This application discloses an intelligent air guiding system for transformer substation management, including a ventilator housing 1. A dustproof net 2 is provided at the upper opening of the ventilator housing 1, and a louver 3 is provided at the upper part of the dustproof net 2. A connecting plate 5 is provided at the bottom opening of the ventilator housing 1, a micro wind pressure sensor 6 is provided in the middle of the connecting plate 5, and an intelligent air guiding fan 4 is provided at the opening of the connecting plate 5.

[0022] The dustproof net 2 also includes a fixing knob 21. The fixing knob 21 is provided on the side of the dustproof net 2. The fixing knob 21 is used to control the engagement and connection between the dustproof net 2 and the ventilator housing 1.

[0023] The micro-wind pressure sensor 6 integrates a power supply and a micro-wind pressure external terminal for power supply and signal output;

[0024] The micro wind pressure sensor 6 includes an air outlet hose 61 and an air inlet hose 62. The air inlet hose 62 is provided at one side interface of the micro wind pressure sensor 6, and the air outlet hose 61 is provided at the other side interface of the micro wind pressure sensor 6. The air outlet hose 61 is fixedly installed through the plate body of the connecting plate 5.

[0025] Working principle: The metal rainproof ventilator is used in conjunction with the environmental control host, which is the control host for the intelligent air guiding system. This is existing technology. The environmental control host and the metal rainproof ventilator are connected via power cables and signal cables. The power cables provide power and control, while the signal cables are for collecting micro-pressure signals. This allows for intelligent control of the start and stop of the intelligent air guiding fan 4. By monitoring the micro-pressure signal generated by the operation of the intelligent air guiding fan 4 (set on the metal rainproof ventilator connection plate 5) and the principle that the micro-pressure inside the ventilator housing 1 changes when the dust screen 2 becomes blocked, the micro-pressure sensor 6 monitors this signal through the outlet hose 61 and the inlet hose 62. This allows for real-time judgment of the working status of the metal rainproof ventilator and the degree of blockage of the dust screen 2.

[0026] Based on the real-time temperature inside the ventilator housing 1, the environmental control unit starts the motor of the intelligent air guide fan 4 (to... Figure 4 (Based on the standard) The second gear of the intelligent air guide fan 4 rotates synchronously, driving the two first gears to rotate, which in turn drives the fixed shaft to rotate synchronously. The rotation of the fixed shaft drives the support block to rotate synchronously, and the rotation of the support block drives the connecting block inserted into the sliding groove to rotate axially. The connecting block drives the rotating shaft and the fan blades fixed on the rotating shaft to rotate synchronously. During the rotation of the fan blades, air is drawn into the ventilator housing 1 through the fixed frame, thereby improving the heat exchange efficiency between the inside and outside of the ventilator housing 1 and achieving the effect of rapid cooling.

[0027] When disassembling the fan blades and mounting bracket for cleaning, simply use a key to open the fixing knob 21 on one side of the dustproof net 2 from the outside. Because the other side of the dustproof net 2 has a groove that engages with the protrusion on the side of the blower housing 1, the fixing knob 21 of the dustproof net 2 cannot continue to engage with the blower housing 1 after being turned. The dustproof net 2 can be easily removed and replaced by rotating the fixing knob 21 counterclockwise, thereby improving the practicality of the metal rainproof ventilator in the variable environment management system.

[0028] A micro-pressure sensor 6 is installed inside the connecting plate 2. This micro-pressure sensor 6 is mainly used to detect whether the intelligent air guide fan 4 of the metal rainproof ventilator is running and whether the dust filter 2 is blocked and the degree of blockage. The micro-pressure sensor 6 is equipped with an air outlet hose 61 and an air inlet hose 62. One end of the air inlet hose 62 is installed inside the air inlet of the connecting plate 5. The air inlet is located above the air outlet of the intelligent air guide fan 4 and is used to collect the air pressure data when the intelligent air guide fan 4 is running. The other air outlet hose 61 is installed outside the connecting plate 5 and is the air outlet. The blockage is determined by the air pressure data collected from these two air outlets.

[0029] The ventilator housing 1 has a sealing frame groove, and the connecting plate 5 is fixedly connected to the side of the ventilator housing 1 with a sealing frame that can be inserted into the sealing frame groove. Multiple positioning plates are fixedly connected to the ventilator housing 1.

[0030] When the connecting plate 5 is aligned and covered with the ventilator housing 1, the sealing frame will be inserted into the sealing frame groove. Inserting the sealing frame into the sealing frame groove can increase the contact area between the connecting plate 5 and the ventilator housing 1. Multiple positioning plates are fixedly connected to the ventilator housing 1 to position the connecting plate 5 in the corresponding groove.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An intelligent air guiding system for transformer substation management, comprising a ventilator housing (1), characterized in that: The upper opening of the ventilator housing (1) is provided with a dustproof net (2), the upper part of the dustproof net (2) is provided with a louver (3), the bottom opening of the ventilator housing (1) is provided with a connecting plate (5), the middle part of the connecting plate (5) is provided with a micro wind pressure sensor (6), and the opening of the connecting plate (5) is provided with an intelligent air guide (4).

2. The intelligent ventilation system for substation management according to claim 1, characterized in that: The dustproof net (2) also includes a fixing knob (21). The fixing knob (21) is provided on the side of the dustproof net (2). The fixing knob (21) is used to control the engagement connection between the dustproof net (2) and the ventilator housing (1).

3. The intelligent ventilation system for substation management according to claim 1, characterized in that: The micro wind pressure sensor (6) integrates a power supply and a micro wind pressure external terminal for power supply and signal output.

4. The intelligent ventilation system for substation management according to claim 3, characterized in that: The micro wind pressure sensor (6) includes an air outlet hose (61) and an air inlet hose (62). The air inlet hose (62) is provided at one side interface of the micro wind pressure sensor (6), and the air outlet hose (61) is provided at the other side interface of the micro wind pressure sensor (6). The air outlet hose (61) is fixedly installed through the plate body of the connecting plate (5).

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