An energy-saving prefabricated outdoor substation based on a smart grid

Abstract

This invention discloses an energy-saving prefabricated outdoor substation based on a smart grid, belonging to the field of electrical equipment technology. It includes a wall panel module and an air guide module. The wall panel module comprises a double-layer cavity structure consisting of an outer wall panel, a sandwich panel, and an inner wall panel, with an air inlet slot and an exhaust slot at the bottom. The air guide module's air duct shell is fixed to the top of the wall panel and has independent cold and hot air slots built-in. The airflow between the inside and outside can be adjusted through a valve chamber, achieving efficient energy-saving ventilation and heat dissipation under sealed assembly. This invention, through efficient airflow circulation and cold / hot flow separation design, combined with natural pressure difference and wind power drive, can significantly reduce heat dissipation energy consumption, achieving adaptive energy-saving ventilation. Multiple sealing and moisture-proof features effectively protect the equipment from oxidation and corrosion. The modular structure facilitates installation and maintenance, reduces total life-cycle costs and resource consumption, and ensures stable operation of the substation.

Description

Technical Field

[0001] This invention belongs to the field of electrical equipment technology, specifically relating to an energy-saving prefabricated outdoor substation based on a smart grid. Background Technology

[0002] The energy-saving box-type outdoor substation is a modern power equipment that integrates high-efficiency energy-saving technology and a compact box structure. It is mainly used in power transmission and distribution systems with voltage levels from 10kV to 35kV as the core node for power reception, transformation and distribution.

[0003] Traditional prefabricated substations mostly use louvers or ventilation holes for natural ventilation and heat dissipation. Although this can reduce the internal temperature, it also allows high humidity air and pollutants such as dust to directly enter the enclosure. Humid air is prone to condensation on the surface of electrical equipment, causing serious faults such as insulation degradation, circuit board corrosion, short circuits, and even breakdowns. This problem is particularly prominent in coastal or humid areas. Existing designs rarely have efficient automatic dehumidification mechanisms. Even if simple desiccants are installed, they often require regular manual replacement or maintenance, resulting in limited long-term moisture protection. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an energy-saving prefabricated outdoor substation based on a smart grid to solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An energy-saving box-type outdoor substation based on a smart grid includes wall panel modules and air guide modules. The wall panel modules are installed between the bottom plate and the top cover of the box. The wall panel modules are sealed together and sealed together with the bottom plate and the top cover of the box. The wall panel module includes wall components, which include an outer wall panel, a sandwich panel, and an inner wall panel. The outer wall panel, sandwich panel, and inner wall panel are arranged in sequence at intervals. A first cavity is provided between the outer wall panel and the sandwich panel, and a second cavity is provided between the sandwich panel and the inner wall panel. The air guiding module includes an air duct assembly, which includes an air duct housing, a front cold air duct, a rear cold air duct, an air valve chamber, a front hot air duct, and a rear hot air duct. The air duct housing is fixedly assembled to the top of the outer wall panel, the sandwich panel, and the inner wall panel. The air duct housing is provided with independent front cold air duct, rear cold air duct, front hot air duct, and rear hot air duct. The front cold air duct and the rear cold air duct are respectively connected to the first cavity and the second cavity. An air valve chamber for controlling the gas guidance is arranged between the front cold air duct and the rear cold air duct, as well as between the front hot air duct and the rear hot air duct. The air passage assembly also includes a valve stem, a first baffle and a second baffle. The valve stem is rotatably arranged in the air valve cavity with a fixed axis, and the first baffle and the second baffle are respectively provided at both ends of the valve stem. The energy-saving box-type outdoor substation based on smart grid also includes a drying component, which includes a mandrel, a partition plate and hydrophilic filler. The mandrel is arranged inside the air duct shell, and the partition plate and the mandrel are coaxially fixedly connected. Hydrophilic filler is arranged on one side of the partition plate.

[0006] As a further embodiment of the present invention, sealing gaskets are provided between the wall panel modules and between the wall panel modules and the bottom plate and top cover of the box.

[0007] As a further embodiment of the present invention, the wall component further includes an elastic diaphragm and an exhaust pump. The elastic diaphragm is elastically fitted to one side of the air inlet slot to limit the unidirectional flow of external air into the first cavity. The exhaust pump is fixedly fitted to the outer wall panel, with one end of the exhaust pump connected to the external atmosphere and the other end of the exhaust pump connected to the first cavity to force gas into the first cavity.

[0008] As a further embodiment of the present invention, the air duct assembly further includes a tail guide groove, a tail hot air duct, and a liquid collection platform. The tail guide groove is disposed at the inner end of the air duct housing. One end of the tail hot air duct is connected to the inner chamber of the box-type substation, and the other end of the tail hot air duct is connected to the tail guide groove. A liquid collection platform is also disposed on one side of the tail hot air duct.

[0009] As a further embodiment of the present invention, the first baffle is rotatably arranged on one side of the front cold air duct and the rear cold air duct, and is used to control the connection between the front cold air duct and the rear cold air duct; the second baffle is rotatably arranged on one side of the front hot air duct and the rear hot air duct, and is used to control the connection between the front hot air duct and the rear hot air duct.

[0010] As a further embodiment of the present invention, a third cavity is provided between the rear cold air duct and the front hot air duct. One end of the third cavity is connected to the rear cold air duct and the front hot air duct, and the other end of the third cavity is connected to the tail hot air duct. A first limiting groove, a second limiting groove, a third limiting groove and a fourth limiting groove are arranged circumferentially inside the third cavity. An extrusion block is also slidably arranged on one side of the third cavity, and a push plate is fixedly connected to the end of the extrusion block.

[0011] As a further embodiment of the present invention, the air guide module further includes a transmission component, which includes a bracket, a bevel gear, a bevel gear shaft, a transmission wheel, and a driven wheel. The bracket is fixedly installed on one side of the outer wall panel, the impeller is rotatably installed on the bracket and the bottom of the impeller is coaxially fitted with a bevel gear, the bevel gear shaft is fixedly fitted on the bracket, one end of the bevel gear shaft meshes with the bevel gear, and the other end of the bevel gear shaft is coaxially fitted with a transmission wheel. The driven wheel is fixedly arranged on one side of the air duct housing, and the driven wheel and the transmission wheel are connected in a transmission manner.

[0012] As a further embodiment of the present invention, the transmission component further includes a residual gear, an L-shaped lever, a connecting rod and a paddle, a valve shaft and a limiting baffle. The residual gear is fixedly arranged at one end of the air passage housing, and the tail hot air slot is elastically and slidably arranged on one side of the residual gear. One end of the residual gear is coaxially assembled with the driven wheel, and the other end of the residual gear is meshed with the L-shaped lever. One end of the L-shaped lever is fixedly connected to a connecting rod, and the connecting rod is fixedly connected to a push plate. The other end of the L-shaped lever is elastically rotatably equipped with a paddle. The transmission component further includes a reversing shaft, reversing teeth, a moving magnetic pole and a fixed magnetic pole. The reversing shaft is rotatably arranged on one side of the air passage housing. Two sets of reversing teeth are arranged at one end of the reversing shaft. A moving magnetic pole is also coaxially fixedly assembled on the reversing shaft. The fixed magnetic pole is fixedly assembled at one end of the air passage housing and matched with the magnetic pole of the moving magnetic pole.

[0013] As a further embodiment of the present invention, the transmission component further includes a valve shaft, a limiting baffle, an adjusting baffle, an adjusting lever, a sleeve, and an electric actuator. The valve shaft and the valve stem are coaxially and fixedly connected. A limiting baffle and an adjusting baffle are provided on one side of the moving magnetic pole. One end of the adjusting lever is rotatably mounted on the adjusting baffle, and the other end of the adjusting lever is elastically slidably disposed in the sleeve. The sleeve is rotatably installed on one side of the air passage housing.

[0014] As a further embodiment of the present invention, the drying assembly further includes guide rods and pressure blocks. The spindle is coaxially and fixedly connected to the reversing shaft, and the partition plate is coaxially and fixedly connected to the spindle. Several guide rods are fixedly provided at both ends of the partition plate. The pressure blocks are elastically and slidably assembled on the guide rods, and hydrophilic filler is provided between the partition plate and the pressure blocks.

[0015] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art: This invention achieves significant energy-saving and environmental protection benefits through an airflow circulation system. The sealed assembly of the enclosure components and wall panel modules forms a relatively closed internal environment. Combined with the hot and cold air diversion design in the air guide module, it realizes efficient and directional exchange of heat between the substation and the outside air. The outside cold air is dried and then introduced into the enclosure for cooling, while the inside hot air is discharged through an independent hot air duct. This fully utilizes the pressure difference between the hot and cold gases, significantly reduces the power consumption required for traditional forced cooling, further reduces power loss, and effectively reduces the overall operating energy consumption of the substation. Furthermore, the air valve chamber, valve stem, and baffle structure in the air guide module can automatically adjust the opening and closing and flow of cold and hot air ducts according to the internal pressure and temperature of the chamber. When the internal temperature exceeds the threshold, the temperature control system can automatically start the induced draft pump and link the electric actuator to open the air duct to the maximum for rapid cooling. The transmission component can convert external wind energy into mechanical energy through the impeller, driving the rotation and extrusion dehydration of the drying component, realizing the direct utilization of natural wind energy. At the same time, when the discharged hot air flows through the hydrophilic filler, it can also dry and dehumidify it, completing the secondary recovery and utilization of heat. Furthermore, this invention significantly improves the moisture-proof and corrosion-proof performance of outdoor substations through an air pretreatment mechanism, extending the service life of the equipment. Before entering the enclosure, humid air must be treated by flowing through the drying component on the air duct assembly side. The hydrophilic filler in the drying component can effectively absorb moisture in the air, ensuring that dry and cold air is delivered into the second cavity and the enclosure. The sealing structure between the wall panel modules forms multiple moisture-proof barriers, effectively blocking the penetration of high-humidity air from the outside. The micro-positive pressure environment formed inside the enclosure further inhibits moisture intrusion, effectively reducing corrosion, oxidation, and short-circuit faults of electrical components caused by condensation and moisture, reducing maintenance and replacement costs caused by equipment damage, and indirectly achieving resource conservation. Furthermore, the technology adopts a modular design, and the wall panel modules, box components and air guide modules can all be manufactured and sealed for assembly in a standardized manner. This not only facilitates production, transportation and rapid on-site installation, but also makes it easy to perform local maintenance or replacement, reducing the material and energy consumption throughout the entire life cycle, reducing the investment of manpower and resources in operation and maintenance, and ensuring the long-term stable operation of the substation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an energy-saving prefabricated outdoor substation based on a smart grid, provided in one embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the installation of the wall panel module in an energy-saving box-type outdoor substation based on a smart grid, provided in one embodiment of the present invention.

[0018] Figure 3This is a schematic diagram of the wall panel module in an energy-saving box-type outdoor substation based on a smart grid, provided in one embodiment of the present invention.

[0019] Figure 4 for Figure 3 Enlarged schematic diagram of reference numeral A in the attached figure.

[0020] Figure 5 This is a schematic diagram showing the airflow direction of the first cavity and the second cavity in an energy-saving box-type outdoor substation based on a smart grid, provided in one embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the back structure of the wall panel module in an energy-saving box-type outdoor substation based on a smart grid, provided in one embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the bottom structure of the wall panel module in an energy-saving box-type outdoor substation based on a smart grid, provided in one embodiment of the present invention.

[0023] Figure 8 for Figure 7 Enlarged schematic diagram of reference numeral B in the attached figure.

[0024] Figure 9 This is a side view of the air duct assembly in an energy-saving box-type outdoor substation based on a smart grid, provided in one embodiment of the present invention.

[0025] Figure 10 for Figure 9 Enlarged schematic diagram of the figure marked C in the attached diagram.

[0026] Figure 11 This is a side view of an energy-saving box-type outdoor substation based on a smart grid, provided in one embodiment of the present invention.

[0027] Figure 12 for Figure 11 Enlarged schematic diagram of reference numeral D in the attached figure.

[0028] Figure 13 This is a schematic diagram illustrating the movement direction of hot and cold airflow in an energy-saving box-type outdoor substation based on a smart grid, provided in one embodiment of the present invention.

[0029] Figure 14 This is a schematic diagram of the drying component in an energy-saving box-type outdoor substation based on a smart grid, provided in one embodiment of the present invention.

[0030] Figure label: 1-Box body components, 101-Box bottom plate, 102-Top cover; Wall components, 201-exterior wall panel, 202-mezzanine board, 203-interior wall panel, 204-air inlet duct, 205-elastic diaphragm, 206-exhaust pump, 207-jacket, 208-exhaust duct; Airway assembly, 301-Airway housing, 302-Front cold air duct, 303-Rear cold air duct, 304-Valve chamber, 305-Front hot air duct, 306-Rear hot air duct, 307-Tail guide groove, 308-Tail hot air duct, 309-Liquid collection platform, 310-Valve stem, 311-First baffle, 312-Second baffle, 313-First limiting groove, 314-Second limiting groove, 315-Third limiting groove, 316-Fourth limiting groove, 317-Drain pipe, 318-Extrusion block, 319-Push plate; Transmission components, 401-bracket, 402-impeller, 403-bevel gear, 404-bevel gear shaft, 405-transmission wheel, 406-driven wheel, 407-residual gear, 408-L-type lever, 409-connecting rod, 410-paddle, 411-reversing shaft, 412-reversing gear, 413-moving magnetic pole, 414-fixed magnetic pole, 415-valve shaft, 416-limiting baffle, 417-adjusting baffle, 418-adjusting lever, 419-sleeve, 420-electric actuator; Drying assembly, 501-mandrel, 502-partition plate, 503-guide rod, 504-pressure block, 505-hydrophilic filler; a1 - First cavity, a2 - Second cavity, a3 - Third cavity. Detailed Implementation

[0031] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Please see Figures 1-14An embodiment of the present invention discloses an energy-saving box-type outdoor substation based on a smart grid, comprising a box component 1, wall panel modules, and an air guide module. The box component 1 includes a bottom plate 101 and a top cover 102. The wall panel modules are installed between the bottom plate 101 and the top cover 102, and the wall panel modules are sealed together and sealed to the bottom plate 101 and the top cover 102. The wall panel modules include a wall component 2, which includes an outer wall panel 201, a mezzanine plate 202, and an inner wall panel 203. The outer wall panel 201, the mezzanine plate 202, and the inner wall panel 203 are arranged sequentially at intervals. A first cavity a1 is provided between the outer wall panel 201 and the mezzanine plate 202, and a second cavity a2 is provided between the mezzanine plate 202 and the inner wall panel 203. The bottom of the first cavity a1 has an air inlet slot 204 for gas entry, and the bottom of the second cavity a2 has an air outlet slot for gas discharge. The exhaust duct 208 is provided, and the first cavity a1 and the second cavity a2 are movably and sealedly connected; the air guide module includes an air duct assembly 3, which includes an air duct housing 301, a front cold air duct 302, a rear cold air duct 303, an air valve chamber 304, a front hot air duct 305, and a rear hot air duct 306. The air duct housing 301 is fixedly assembled to the top of the outer wall panel 201, the sandwich panel 202, and the inner wall panel 203. The air duct housing 301 is provided with a unique... The system comprises a front cold air duct 302, a rear cold air duct 303, a front hot air duct 305, and a rear hot air duct 306. The front cold air duct 302 and the rear cold air duct 303 are respectively connected to the first cavity a1 and the second cavity a2. A valve chamber 304 for controlling gas guidance is arranged between the front cold air duct 302 and the rear cold air duct 303, as well as the front hot air duct 305 and the rear hot air duct 306, to regulate the inflow of external air and the outflow of internal air.

[0033] In practical application, the main structure of the energy-saving box-type outdoor substation is composed of box component 1, wall panel module and air guide module. Box component 1 includes a bottom plate 101 as the installation base and a top cover 102 at the top. The wall panel module adopts a modular design and can be flexibly assembled between the bottom plate 101 and the top cover 102. The assembly position is any vertical area except the door panel installation position. The core unit of the wall panel module is the wall component 2, which is composed of three parallel plates, namely the outer wall panel 201, the mezzanine plate 202 and the inner wall panel 203, which are stacked in sequence at intervals. The outermost outer wall panel 201 is coated with a dustproof coating to improve its anti-fouling ability. A first cavity a1 is reserved between the outer wall panel 201 and the mezzanine plate 202. This cavity serves as an airflow channel to introduce ambient air from outside the box into the internal space of the box.

[0034] The air duct housing 301 in the air guide module integrates independent front cold air duct 302, rear cold air duct 303, front hot air duct 305, and rear hot air duct 306. The front cold air duct 302 and rear cold air duct 303, as well as the front hot air duct 305 and rear hot air duct 306, are connected via a valve chamber 304. This valve chamber 304 is configured as a linkage control mechanism, ensuring that when the front hot air duct 305 and rear hot air duct 306 are connected, the front cold air duct 302 and rear cold air duct 303 simultaneously switch to the connected state, while the front hot air duct 305 and rear hot air duct 306 switch to the closed state. When the front cold air duct 302 and the rear cold air duct 303 are closed, the front hot air duct 305 and the rear hot air duct 306 are open. The high-temperature air accumulated inside the box expands due to continuous heating, forming a slightly positive pressure environment. Driven by this pressure, the hot air flows through the valve chamber 304, the front hot air duct 305 and the rear hot air duct 306 in sequence and is finally discharged to the outside of the box. Conversely, when the pressure inside the box drops and becomes a negative pressure state, the outside air is drawn into the box through the first cavity a1. The drawn-in low-temperature and humid air first flows along the first cavity a1 and then passes through the front cold air duct 302 and the rear cold air duct 303 in sequence.

[0035] Because the air duct housing 301 also integrates a drying component 5 specifically for dehumidifying humid air, the humidity of the low-temperature humid air is effectively reduced when it flows through the drying component 5. The dried cold air then enters the second cavity a2 formed between the sandwich plate 202 and the inner wall plate 203 and is transported downwards to the bottom area of ​​the enclosure. Based on the physical characteristics that hot air has a low density and cold air has a high density, the airflow inside the enclosure naturally forms a path of circulating flow from the bottom to the top under the action of temperature difference, thereby achieving continuous and efficient cooling of the equipment inside the substation enclosure. The entire system ensures that cold air and hot air move in independent channels through the hot and cold air separation design, and the cold air has been dried before entering the enclosure. This process significantly reduces the possibility of humid air directly contacting the internal electrical components, thereby effectively avoiding potential faults such as circuit board corrosion, oxidation, and short circuits caused by moisture in the air.

[0036] Furthermore, sealing gaskets are provided between the wall panel modules and between the wall panel modules and the bottom plate 101 and top cover 102. High-performance elastic sealing gaskets are provided at the connection interfaces. The gaskets are made of materials with weather resistance and resistance to compression set. Through their deformation under pressure, they can tightly fill the joints, thereby forming a relatively airtight isolation state inside the entire box. This effectively blocks the infiltration of high humidity air from the outside and maintains a dry and stable microenvironment inside the box. This ensures that the internally designed gas circulation path can continuously, stably and efficiently complete the closed flow circulation.

[0037] Please see Figure 3 In a preferred embodiment of the present invention, the wall component 2 further includes an elastic diaphragm 205, an induced draft pump 206, and an exhaust duct 208. The elastic diaphragm 205 is elastically fitted to one side of the air inlet duct 204 to limit the unidirectional flow of external air into the first cavity a1. The induced draft pump 206 is fixedly fitted to the outer wall panel 201. One end of the induced draft pump 206 is connected to the external atmosphere, and the other end of the induced draft pump 206 is connected to the first cavity a1 to force gas into the first cavity a1.

[0038] In practical application, the elastic diaphragm 205 is installed on one side of the air inlet slot 204 in an elastic assembly manner. Its function is to construct a one-way airflow channel to ensure that external air can only flow into the first cavity a1 in a directional manner. The induced draft pump 206 is fixedly installed on the outer wall panel 201. Its air inlet end is connected to the external atmospheric environment, while its air outlet end is connected to the first cavity a1. This design realizes the forced gas delivery to the first cavity a1 to establish a positive pressure environment. The elastic diaphragm 205 adhering to one side of the air inlet slot 204 can effectively block the air inside the box from leaking out in reverse through the air inlet slot 204 under the action of air pressure difference, thereby forcing external air to flow into the box in a unidirectional manner and further blocking the intrusion of external humid air.

[0039] The air inlet of the induced draft pump 206 is located on the outside of the outer wall panel 201 to directly introduce external air. When the internal temperature of the box exceeds the preset threshold, the induced draft pump 206 receives the start signal from the temperature control alarm through electrical connection and starts running immediately, thereby rapidly drawing the low-temperature external air into the first cavity a1. At this time, due to the air pressure, all elastic diaphragms 205 remain closed and sealed to form a closed airflow path. The low-temperature air in the first cavity a1 is then forced into the air duct housing 301 and, after drying, is finally discharged into the internal space of the box through the exhaust duct 208.

[0040] Please see Figure 11 and Figure 12 In a preferred embodiment of the present invention, the tail guide groove 307 is disposed at the inner end of the air duct housing 301, one end of the tail hot air duct 308 is connected to the inner chamber of the box-type substation, the other end of the tail hot air duct 308 is connected to the tail guide groove 307, and a liquid collection platform 309 is also disposed on one side of the tail hot air duct 308.

[0041] In practical application, the tail guide groove 307 and the rear hot air groove 306 are located on the same side of the box and are connected to each other through the flow channel. At the same time, the tail hot air groove 308 is directly connected to the indoor space of the box. When the heated air inside the box accumulates on the top side due to density difference, the hot air is introduced into the tail guide groove 307 through the tail hot air groove 308 under the action of pressure difference. Then the hot air flow passes through the third cavity a3 to achieve directional flow and enters the rear hot air groove 306. Finally, it flows through the valve cavity 304 and the front hot air groove 305 to form a continuous exhaust path, continuously exhausting the hot air to the outdoor environment.

[0042] Please see Figure 10 In a preferred embodiment of this invention, the air passage assembly 3 further includes a valve stem 310, a first baffle 311, and a second baffle 312. The valve stem 310 is rotatably disposed in the air valve chamber 304, and the first baffle 311 and the second baffle 312 are respectively disposed at both ends of the valve stem 310. The first baffle 311 is rotatably disposed on one side of the front cold air duct 302 and the rear cold air duct 303 to control the connection between the front cold air duct 302 and the rear cold air duct 303. The second baffle 312 is rotatably disposed on one side of the front hot air duct 305 and the rear hot air duct 306 to control the connection between the front hot air duct 305 and the rear hot air duct 306.

[0043] In practical application, the first baffle 311 rotates around its axis and is deployed on the adjacent sides of the front cold air duct 302 and the rear cold air duct 303. The front cold air duct 302 is connected to the first cavity a1, and the rear cold air duct 303 is connected to the second cavity a2. When the first baffle 311 rotates to cover the inlet of the flow channel of the front cold air duct 302 or the rear cold air duct 303, the second baffle 312, which is linked to it, slides synchronously and completely seals the interface between the front hot air duct 305 and the rear hot air duct 306. At this time, the hot air inside the box cannot be discharged because the exhaust path is blocked, and the internal pressure of the system continues to rise and maintains a positive pressure state. This positive pressure environment hinders the external cold air. Air is drawn into the first cavity a1 through the air intake channel, causing gas exchange between the first cavity a1 and the second cavity a2 to stagnate and the fluid to be in static equilibrium. When the specific gap between the first baffle 311 and the second baffle 312 is aligned with the corresponding port of the front cold air duct 302 and the rear cold air duct 303 by the rotating mechanism, the second baffle 312 is simultaneously rotated and moved to the starting end of the front hot air duct 305, so that a continuous hot air channel is formed between the front hot air duct 305 and the rear hot air duct 306. At the same time, the front cold air duct 302 and the rear cold air duct 303 can achieve bidirectional flow of cold air through the gap. Finally, the system realizes the separation and circulation of cold and hot air in the independent flow channel and efficient heat exchange.

[0044] Please see Figure 11 and Figure 12 In a preferred embodiment of the present invention, a third cavity a3 is further provided between the rear cold air duct 303 and the front hot air duct 305. One end of the third cavity a3 is connected to the rear cold air duct 303 and the front hot air duct 305, and the other end of the third cavity a3 is connected to the tail hot air duct 308. A first limiting groove 313, a second limiting groove 314, a third limiting groove 315 and a fourth limiting groove 316 are arranged circumferentially inside the third cavity a3. A pressing block 318 is slidably arranged on one side of the third cavity a3, and a push plate 319 is fixedly connected to the end of the pressing block 318. Based on The energy-saving box-type outdoor substation of the smart grid also includes a drying component 5, which includes a spindle 501, a partition plate 502, a guide rod 503, a pressure block 504, and a hydrophilic filler 505. The spindle 501 is arranged in the air duct housing 301 and is coaxially and fixedly connected to the reversing shaft 411. The partition plate 502 is coaxially and fixedly connected to the spindle 501. Several guide rods 503 are fixedly arranged at both ends of the partition plate 502. The pressure block 504 is elastically slidably assembled on the guide rods 503. A hydrophilic filler 505 is also arranged between the partition plate 502 and the pressure block 504.

[0045] In practical application, the third cavity a3 is provided with a first limiting groove 313, a second limiting groove 314, a third limiting groove 315, and a fourth limiting groove 316 in the circumferential direction. These limiting grooves are used to constrain the rotational diameter of the drying component 5. The extrusion block 318 is slidably disposed on one side of the third cavity a3, so that when the push plate 319 performs reciprocating linear motion, it can synchronously drive the extrusion block 318 to move back and forth along the same trajectory. During the circumferential rotation, the spindle 501 drives the partition plate 50. 2. The partition plate 502 rotates synchronously, and two independent sets of hydrophilic fillers 505 are arranged on both sides of it. One set is located in the rear cold air duct 303 area, and the other set is located in the rear hot air duct 306 area. Here, the set closer to the rear cold air duct 303 is defined as the first set of hydrophilic fillers 505, and the set closer to the rear hot air duct 306 is defined as the second set of hydrophilic fillers 505. When the first set of hydrophilic fillers 505 rotates with the partition plate 502 into the rear cold air duct 303, the water flowing from the front cold air duct 302 and the rear cold air duct 306... The incoming cold air flows through the first set of hydrophilic packing 505, where the moist droplets carried inside are quickly adsorbed and captured by the hydrophilic packing, thus allowing the dry cold air to continue flowing along the rear cold air duct 303 to the second cavity a2. At the same time, the second set of hydrophilic packing 505 is located in the area between the rear hot air duct 306 and the tail guide duct 307. During the reciprocating motion, the push plate 319 pushes the extrusion block 318 to move synchronously. When the extrusion block 318 moves toward the pressure block 504, it pushes the pressure block 504 along the axial direction of the guide rod 503. 04, reducing the gap between the pressure block 504 and the partition plate 502, thereby applying compressive force to the hydrophilic filler 505 between them, causing the droplets adsorbed inside the hydrophilic filler 505 to desorb under the squeezing action and drip onto the surface of the liquid collection platform 309. The droplets are then guided along the drain pipe 317 at the bottom of the liquid collection platform 309 to the bottom of the first cavity a1. The outlet end of the drain pipe 317 is located below the air inlet slot 204, and its pipe diameter is extremely small, so its hydrodynamic effect on the gas flow path is negligible.

[0046] Furthermore, the hot air inside the chamber can simultaneously dry and dehumidify the hydrophilic filler 505 during the exhaust process, thereby achieving the cascade utilization and recovery of heat.

[0047] Furthermore, the hydrophilic filler 505 is preferably made of low-density and high-resilience open-cell PU foam, which has the physical properties of being soft and easy to compress while maintaining high strength and resistance to compression deformation. The open-cell porous structure ensures that water flow forms a uniform and unobstructed channel inside, and promotes efficient mass transfer and gas exchange, so as to maintain structural stability and long-lasting resilience under continuous hydraulic load.

[0048] Please see Figure 8In a preferred embodiment of the present invention, the air guide module further includes a transmission component 4. The transmission component 4 includes a bracket 401, a bevel gear 403, a bevel gear shaft 404, a transmission wheel 405, and a driven wheel 406. The bracket 401 is fixedly installed on one side of the outer wall panel 201. The impeller 402 is rotatably installed on the bracket 401, and the bottom of the impeller 402 is coaxially fitted with the bevel gear 403. The bevel gear shaft 404 is fixedly fitted on the bracket 401. One end of the bevel gear shaft 404 meshes with the bevel gear 403, and the other end of the bevel gear shaft 404 is coaxially fitted with the transmission wheel 405. The driven wheel 406 is fixedly arranged on one side of the air duct housing 301, and the driven wheel 406 and the transmission wheel 405 are connected in a transmission manner.

[0049] In practical application, the impeller 402 is rotatably mounted on the axial positioning structure of the bracket 401 via a precision bearing assembly. When there is available wind energy in the external atmosphere, the airflow acts on the aerodynamic surface of the impeller 402 and generates aerodynamic torque, thereby driving the impeller 402 to achieve efficient rotation around its main shaft. Then, through the meshing of the bevel gear 403 fixed coaxially with it, the torque is transmitted to the vertically arranged bevel gear shaft 404, enabling the bevel gear shaft 404 to achieve directional transmission within the support structure. Subsequently, the transmission wheel 405 at the end of the bevel gear shaft 404 drives the driven wheel 406 to rotate in coordination through a synchronous belt or gear meshing. Ultimately, the entire internal transmission system of the housing operates continuously under the drive of wind energy. This design effectively reduces the dependence on traditional power sources by fully converting ambient wind energy into mechanical energy, thereby reducing system energy consumption and achieving sustainable energy utilization.

[0050] Furthermore, the configuration height of the impeller 402 is not specifically limited. If the installation position of the impeller 402 is higher than the top surface of the top cover 102, the impeller 402 can be in an open airflow state in the spatial direction, which can effectively reduce the obstruction and wind pressure loss of the incoming airflow field by adjacent wall panels or structural components, thereby improving the airflow energy capture efficiency and further improving the wind energy utilization rate of the overall wind energy conversion system.

[0051] Please see Figure 4In a preferred embodiment of the present invention, the transmission component 4 further includes a residual gear 407, an L-shaped lever 408, a connecting rod 409, a paddle 410, a valve shaft 415, and a limiting baffle 416. The residual gear 407 is fixedly arranged at one end of the air passage housing 301, and the tail hot air slot 308 is elastically and slidably arranged on one side of the residual gear 407. One end of the residual gear 407 is coaxially assembled with the driven wheel 406, and the other end of the residual gear 407 is meshed with the L-shaped lever 408. The connecting rod 409 is fixedly connected to one end of the L-shaped lever 408. The connecting rod 409 and the push plate 319 are fixedly connected, and the other end of the L-shaped lever 408 is elastically rotatably equipped with a lever 410; the transmission component 4 also includes a reversing shaft 411, reversing teeth 412, moving magnetic pole 413 and fixed magnetic pole 414. The reversing shaft 411 is rotatably arranged on one side of the airway housing 301. Two sets of reversing teeth 412 are arranged at one end of the reversing shaft 411. The moving magnetic pole 413 is also coaxially fixedly assembled on the reversing shaft 411. The fixed magnetic pole 414 is fixedly assembled at one end of the airway housing 301 and is matched with the magnetic pole of the moving magnetic pole 413.

[0052] In practical application, the driven wheel 406 synchronously drives the residual gear 407 to rotate during rotation. When the residual teeth of the residual gear 407 move to the meshing area of ​​the bottom tooth plate of the L-shaped lever 408, its tooth profile meshes with the tooth plate, thereby driving the L-shaped lever 408 to overcome the restoring force of the elastic element and move along a preset trajectory. The connecting rod 409 at one end of the L-shaped lever 408 is fixedly connected to the push plate 319, thereby driving the extrusion block 318 to achieve synchronous axial displacement. When the residual teeth of the residual gear 407 disengage from the meshing area of ​​the tooth plate of the L-shaped lever 408 with rotation, the L-shaped lever 408 is reset in the opposite direction under the action of elastic restoring force, and further pulls the push plate 319 to reset synchronously through the connecting rod 409, so that the extrusion block 318 forms a periodic reciprocating motion in a single axis, thereby realizing the continuous cyclic extrusion and dehydration of the hydrophilic filler 505.

[0053] The reversing shaft 411 and the spindle 501 are coaxially fixedly connected, and two sets of symmetrically distributed reversing teeth 412 are arranged circumferentially at the end of the reversing shaft 411. A deflectable paddle 410 is mounted on the side of the L-shaped lever 408 via an elastic shaft. When the L-shaped lever 408 drives the paddle 410 to move along the positive x-axis and contact the reversing teeth 412, the paddle 410 is elastically deflected by the pressure of the inclined surface of the reversing teeth 412, avoiding motion interference with the reversing teeth 412. When the L-shaped lever 408 drives the paddle 410 to move in the opposite x-axis direction, the paddle 410 abuts against the driving surface of the reversing teeth 412 with its rigid sidewall, thereby pushing the reversing teeth 412. 12 and the reversing shaft 411 rotate clockwise around the axis. Since the moving magnetic pole 413 is coaxially fixed on the reversing shaft 411, and the magnetic pole distribution of the moving magnetic pole 413 matches the fixed magnetic pole 414 fixed on the frame, when the moving magnetic pole 413 rotates with the reversing shaft 411 to the critical position of separation from the fixed magnetic pole 414, under the action of rotational inertia, the moving magnetic pole 413 continues to rotate in the original direction, and after rotating 180 degrees in the circumferential direction, it re-forms magnetic adsorption and positioning with the fixed magnetic pole 414 with its opposite magnetic pole, thereby realizing the precise 180-degree circumferential reversing rotation of the reversing shaft 411 and the core shaft 501, and finally driving the two sets of hydrophilic packing 505 to alternately switch working positions in the circumferential direction.

[0054] Please see Figure 4 In a preferred embodiment of the present invention, the transmission component 4 further includes a valve shaft 415, a limiting baffle 416, an adjusting baffle 417, an adjusting lever 418, a sleeve 419, and an electric actuator 420. The valve shaft 415 and the valve stem 310 are coaxially and fixedly connected. A limiting baffle 416 and an adjusting baffle 417 are provided on one side of the moving magnetic pole 413. One end of the adjusting lever 418 is rotatably mounted on the adjusting baffle 417, and the other end of the adjusting lever 418 is elastically slidably disposed in the sleeve 419. The sleeve 419 is rotatably mounted on one side of the air passage housing 301.

[0055] In practical application, the valve shaft 415 and valve stem 310 are coaxially fixedly connected to achieve synchronous movement. The limiting baffle 416 on one side of the valve shaft 415 is precisely constrained between two parallel limiting posts to limit its axial displacement range. The adjusting baffle 417 mounted on the other side of the valve shaft 415 is hinged with a rotatable adjusting lever 418. The end of the adjusting lever 418 is embedded in the sleeve 419 in a sliding fit and can perform elastic extension and retraction within it. This ensures that the entire valve shaft 415, under the restoring force of the pre-set elastic element, always keeps its limiting baffle 416 end tightly attached to the contact surface of one set of limiting posts. At this time, the first baffle 311 and the second baffle 312 linked with the valve stem 310 completely cover the flow channel interface between the front cold air duct 302 and the rear cold air duct 303 and the flow channel interface between the front hot air duct 305 and the rear hot air duct 306, respectively, realizing the closed state of the air duct.

[0056] When the internal temperature of the enclosure continues to rise due to increased heat load, creating an internal positive pressure environment, the gas pressure difference acting on the surface of the second baffle 312 generates a driving torque, driving the valve shaft 415 to overcome elastic resistance and rotate clockwise by a fixed angle. At this time, the adjusting lever 418 follows and compresses the internal spring, contracting into the inner cavity of the sleeve 419, thereby realizing the opening of the adaptive air duct based on the pressure difference to promote initial convection heat dissipation. If the internal temperature of the enclosure further increases and exceeds the preset safety threshold, air convection driven by gas pressure difference alone is insufficient to effectively eliminate the continuously accumulated heat. At this time, the thermocouple sensor integrated in the system triggers a control signal. The induced draft pump 206 installed at the bottom of the outer wall panel 201 is activated to forcibly introduce external low-temperature air. The high-speed airflow is continuously pumped into the first cavity a1 of the housing. At the same time, the electric actuator 420 is extended in control and drives the valve shaft 415 to continue rotating to the maximum opening position. This expands the cross-section of the airflow channel between the front cold air duct 302 and the rear cold air duct 303, and between the front hot air duct 305 and the rear hot air duct 306, to the maximum diameter. This significantly reduces the flow resistance and optimizes the fluid transmission efficiency, thereby establishing an efficient forced convection heat transfer mechanism, accelerating the rapid exchange and heat removal of the internal and external gaseous media, and effectively suppressing the heat accumulation effect of the equipment.

[0057] The working process of this invention is divided into: S1: When the internal equipment generates heat during operation, the internal air expands due to heat, forming a slight positive pressure. The hot air is discharged to the outside of the box through the path consisting of the tail hot air duct 308, the tail guide duct 307, the rear hot air duct 306, the valve chamber 304, and the front hot air duct 305. The discharge of hot air causes a negative pressure to form inside the box. External air is drawn into the first cavity a1 through the air inlet duct 204 at the bottom of the wall panel. External cold air then enters the air duct housing 301, passes through the front cold air duct 302, the valve chamber 304, and the rear cold air duct 303, and enters the second cavity a2. It then flows into the bottom of the box from the exhaust duct 208. By utilizing the density difference between hot and cold air, a natural convection circulation from bottom to top is formed inside the box, continuously cooling the internal equipment. S2: When the temperature inside the chamber exceeds the preset threshold, the induced draft pump 206 starts, forcibly pumping the external low-temperature air into the first cavity a1 to form positive pressure. At this time, the elastic diaphragm 205 closes to prevent backflow. Driven by thermal pressure and wind pressure, the valve stem 310 in the air valve cavity 304 and its first baffle 311 and second baffle 312 automatically rotate, opening the channels between the front cold air duct 302 and the rear cold air duct 303, as well as the front hot air duct 305 and the rear hot air duct 306, to enhance the exchange of internal and external air. When forced convection is still insufficient, the electric push rod 420 is controlled to rotate the valve shaft 415 and the valve stem 310 to the maximum opening through the adjustment lever 418 and other mechanisms, so that the airflow channel expands to the maximum and establishes an efficient forced convection heat exchange mechanism. S3: When external humid air is drawn in during the S1 / S2 stage, it flows through the drying component 5 in the air duct housing 301. The moisture in the humid air is adsorbed by the hydrophilic filler 505, and the air is dried. The wind energy drives the impeller 402 to convert wind energy into mechanical energy. This mechanical energy drives the extrusion block 318 and push plate 319 to reciprocate, periodically extruding the humidified hydrophilic filler 505, squeezing out the moisture and discharging it through the liquid collection platform 309 and drain pipe 317. On the other hand, through the cooperation between the lever 410 and the magnetic pole, the reversing shaft 411 and the spindle 501 are driven to rotate once every 180 degrees, so that the two sets of hydrophilic fillers 505 located in the cold air channel and the hot air channel work alternately. While one set absorbs moisture, the other set is squeezed out of water and dried by hot air, realizing the drying of the filler and the stepwise utilization of heat.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An energy-saving prefabricated outdoor substation based on a smart grid, comprising a prefabricated enclosure, wherein the enclosure includes a bottom plate and a top cover, characterized in that, Also includes: The wall panel module and the air guide module are provided. The wall panel module is installed between the bottom plate and the top cover of the box. The wall panel modules are sealed together and sealed together with the bottom plate and the top cover of the box. The wall panel module includes wall components, which include an outer wall panel, a sandwich panel, and an inner wall panel. The outer wall panel, sandwich panel, and inner wall panel are arranged in sequence at intervals. A first cavity is provided between the outer wall panel and the sandwich panel, and a second cavity is provided between the sandwich panel and the inner wall panel. The air guiding module includes an air duct assembly, which includes an air duct housing, a front cold air duct, a rear cold air duct, an air valve chamber, a front hot air duct, and a rear hot air duct. The air duct housing is fixedly assembled to the top of the outer wall panel, the sandwich panel, and the inner wall panel. The air duct housing is provided with independent front cold air duct, rear cold air duct, front hot air duct, and rear hot air duct. The front cold air duct and the rear cold air duct are respectively connected to the first cavity and the second cavity. An air valve chamber for controlling the gas guidance is arranged between the front cold air duct and the rear cold air duct, as well as between the front hot air duct and the rear hot air duct. The air passage assembly also includes a valve stem, a first baffle and a second baffle. The valve stem is rotatably arranged in the air valve cavity with a fixed axis, and the first baffle and the second baffle are respectively provided at both ends of the valve stem. The energy-saving box-type outdoor substation based on smart grid also includes a drying component, which includes a mandrel, a partition plate and hydrophilic filler. The mandrel is arranged inside the air duct shell, and the partition plate and the mandrel are coaxially fixedly connected. Hydrophilic filler is arranged on one side of the partition plate.

2. The energy-saving prefabricated outdoor substation based on a smart grid according to claim 1, characterized in that, Sealing gaskets are provided between the wall panel modules and between the wall panel modules and the bottom plate and top cover of the box.

3. The energy-saving prefabricated outdoor substation based on a smart grid according to claim 1, characterized in that, The wall component also includes an elastic diaphragm and an exhaust pump. The elastic diaphragm is elastically fitted to one side of the air inlet slot to limit the unidirectional flow of external air into the first cavity. The exhaust pump is fixedly fitted to the outer wall panel. One end of the exhaust pump is connected to the external atmosphere, and the other end of the exhaust pump is connected to the first cavity to force gas into the first cavity.

4. The energy-saving prefabricated outdoor substation based on a smart grid according to claim 1, characterized in that, The air duct assembly also includes a tail guide groove, a tail hot air duct, and a liquid collection platform. The tail guide groove is located at the inner end of the air duct housing. One end of the tail hot air duct is connected to the inner chamber of the box-type substation, and the other end of the tail hot air duct is connected to the tail guide groove. A liquid collection platform is also provided on one side of the tail hot air duct.

5. An energy-saving prefabricated outdoor substation based on a smart grid according to claim 1, characterized in that, The first baffle is rotatably arranged on one side of the front and rear cold air ducts to control the connection between the front and rear cold air ducts. The second baffle is rotatably arranged on one side of the front hot air duct and the rear hot air duct to control the connection between the front hot air duct and the rear hot air duct.

6. The energy-saving prefabricated outdoor substation based on a smart grid according to claim 1, characterized in that, A third cavity is provided between the rear cold air duct and the front hot air duct. One end of the third cavity is connected to the rear cold air duct and the front hot air duct, and the other end of the third cavity is connected to the tail hot air duct. The third cavity is provided with a first limiting groove, a second limiting groove, a third limiting groove and a fourth limiting groove in a circumferential direction; A compression block is also slidably arranged on one side of the third cavity, and a push plate is fixedly connected to the end of the compression block.

7. An energy-saving prefabricated outdoor substation based on a smart grid according to claim 1, characterized in that, The air guide module also includes a transmission component, which includes a bracket, a bevel gear shaft, a bevel gear, a transmission wheel, and a driven wheel. The bracket is fixedly installed on one side of the outer wall panel. The impeller is rotatably installed on the bracket, and a bevel gear is coaxially mounted on the bottom of the impeller. The bevel gear shaft is fixedly mounted on the bracket, with one end meshing with the bevel gear and the other end coaxially mounted with the transmission wheel. The driven wheel is fixedly located on one side of the air duct housing, and the driven wheel and the transmission wheel are connected by transmission.

8. An energy-saving prefabricated outdoor substation based on a smart grid according to claim 7, characterized in that, The transmission component also includes a residual gear, an L-shaped lever, a connecting rod and a paddle, a valve shaft and a limiting baffle. The residual gear is fixedly arranged at one end of the air passage housing, and the tail hot air slot is elastically and slidably arranged on one side of the residual gear. One end of the residual gear is coaxially assembled with the driven wheel, and the other end of the residual gear is engaged with the L-shaped lever. One end of the L-shaped lever is fixedly connected to a connecting rod, which is fixedly connected to the push plate, and the other end of the L-shaped lever is elastically rotatably equipped with a lever plate. The transmission component also includes a reversing shaft, reversing teeth, moving magnetic poles and fixed magnetic poles. The reversing shaft is rotatably arranged on one side of the airway housing. Two sets of reversing teeth are arranged at one end of the reversing shaft. Moving magnetic poles are also coaxially fixedly mounted on the reversing shaft. The fixed magnetic poles are fixedly mounted at one end of the airway housing and are matched with the magnetic poles of the moving magnetic poles.

9. An energy-saving prefabricated outdoor substation based on a smart grid according to claim 7, characterized in that, The transmission component also includes a valve shaft, a limit baffle, an adjusting baffle, an adjusting lever, a sleeve, and an electric actuator. The valve shaft and valve stem are coaxially and fixedly connected. A limit baffle and an adjusting baffle are provided on one side of the moving magnetic pole. One end of the adjusting lever is rotatably mounted on the adjusting baffle, and the other end of the adjusting lever is elastically slidably arranged in the sleeve. The sleeve is rotatably installed on one side of the air passage housing.

10. An energy-saving prefabricated outdoor substation based on a smart grid according to claim 8, characterized in that, The drying assembly also includes guide rods and pressure blocks. The spindle is coaxially and fixedly connected to the reversing shaft. The partition plate is coaxially and fixedly connected to the spindle. Several guide rods are fixedly provided at both ends of the partition plate. The pressure blocks are elastically and slidably assembled on the guide rods. Hydrophilic filler is provided between the partition plate and the pressure blocks.

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