Reactive compensation box-type substation

Abstract

The invention relates to the technical field of transformer substations, and discloses a reactive compensation box-type transformer substation which comprises a supporting frame, a capacitor chamber, a communication and electric quantity acquisition chamber and an automation chamber are arranged on one side of the interior of the supporting frame, a dehumidification mechanism is arranged in the capacitor chamber, and an air opening cleaning mechanism is arranged on the dehumidification mechanism. The tuyere cleaning mechanism is mounted on the adjusting mechanism, a transformer is fixed in the transformation chamber, and a heat exchange mechanism is arranged on the transformer; the humidity sensor is installed through the adjusting mechanism, meanwhile, a part of the ventilation fan and the air opening cleaning mechanism in the dehumidification mechanism are connected, the humidity monitoring range is expanded, meanwhile, the flow direction of air in the capacitor chamber can be adjusted, the dehumidification effect is guaranteed, and meanwhile dust removal can be conducted on a dehumidified air circulation notch, and dust accumulation is prevented; and through the arranged anti-scaling mechanism, the cooling water pipeline structure can be cleaned and scraped in the power change process of the heat exchange mechanism, and the pipeline structure is prevented from being blocked.

Description

Technical Field

[0001] This invention belongs to the field of substation technology, specifically relating to a prefabricated substation with reactive power compensation. Background Technology

[0002] A prefabricated substation is a compact substation facility that integrates high-voltage switchgear, distribution transformers, and low-voltage distribution equipment. It features a compact structure, convenient installation, and flexible relocation. Its core function is to convert high-voltage electricity to low-voltage electricity and complete the distribution and control of electrical energy. It can also integrate auxiliary functions such as reactive power compensation and intelligent monitoring. Prefabricated substations are particularly suitable for situations with tight power supply, requiring rapid power supply, or frequent relocation. They have advantages such as high efficiency, safety, and economy. Integrating capacitor compensators into prefabricated substations can improve the power factor, reduce line losses, and optimize power quality.

[0003] Existing prefabricated substations with reactive power compensation functions can basically meet daily usage needs. However, when used in harsh environments such as ships, wind power plants, or solar power plants, considering the dehumidification of the capacitor bank, it is necessary to install internal fans to increase the internal airflow speed. However, the air outlet is prone to attracting dust particles due to static electricity. If not cleaned for a long time, it will increase the particle capture effect, resulting in more dust accumulation. Adding dust filters requires regular replacement or cleaning of the screens. At the same time, the transformers inside the prefabricated substations rely on electronic fluorinated liquid for forced cooling in extreme environments. When the transformer load is high or the ambient temperature is extremely high, the temperature of the electronic fluorinated liquid inside will rise significantly. An additional heat exchange circulation mechanism must be activated to utilize external cooling water to remove the heat from the fluorinated liquid. To match the heat load, the power of the circulation pump needs to be dynamically adjusted. This power variation causes changes in the flow rate and velocity of the cooling water flowing through the heat exchanger, which can easily lead to localized overheating or undercooling areas at the inlet and outlet of the heat exchanger. This variation promotes the precipitation and crystallization of minerals dissolved in the cooling water, which then adhere to the inner wall of the heat exchanger pipes to form scale, reducing the effective flow cross-sectional area of ​​the heat exchanger water pipes and weakening the heat dissipation capacity of the entire heat exchange circulation mechanism, potentially posing a risk of equipment overheating. Therefore, it is essential to design a reactive power compensation prefabricated substation. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and rationally designed prefabricated substation for reactive power compensation in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A reactive power compensation prefabricated substation includes a support frame with a top cover. Inside the support frame, on one side, are a capacitor compartment, a communication and power acquisition compartment, and an automation compartment. On one side of the communication and power acquisition compartment is a low-voltage cabinet compartment, on one side of the low-voltage cabinet compartment is a high-voltage cabinet compartment, and on one side of the high-voltage cabinet compartment is a transformer compartment. The capacitor compartment contains a dehumidification mechanism with an air vent cleaning mechanism mounted on it. The air vent cleaning mechanism is installed on an adjustment mechanism. A transformer is fixed in the transformer compartment, and a heat exchange mechanism with an anti-scaling mechanism is mounted on the transformer.

[0006] As a further optimization of the present invention, the dehumidification mechanism includes a capacitor cabinet door rotatably connected to the capacitor chamber. A bottom air outlet is evenly provided on one side of the bottom of the capacitor cabinet door. A first ventilation fan is evenly arranged on the inner side of the capacitor cabinet door near the bottom air outlet. An outer baffle is provided on the outer side of the capacitor cabinet door. A vent is provided on the outer baffle. A top air outlet net is symmetrically provided on one side of the top of the capacitor cabinet door. A third ventilation fan is symmetrically provided on the side of the low-pressure cabinet chamber near the top air outlet net.

[0007] As a further optimization of the present invention, the dehumidification mechanism further includes guide rails symmetrically installed on the inner wall of the capacitor chamber, a lifting frame slidably connected to the guide rails, and a second ventilation fan evenly installed on the lifting frame.

[0008] As a further optimization of the present invention, the air vent cleaning mechanism includes sliding guide rails symmetrically installed on the inner wall of the capacitor cabinet door, sliding blocks slidably connected to the sliding guide rails, and a support platform provided on the sliding block. The support platform is slidably connected to a through groove opened on the capacitor cabinet door.

[0009] As a further optimization of the present invention, a support shaft is rotatably connected between the support platforms, and a cleaning roller brush is fixedly sleeved on the support shaft. The cleaning roller brush is located between the capacitor cabinet door and the outer baffle. A first gear is fixedly installed at both ends of the support shaft. The first gear meshes with a second gear. The second gear is rotatably connected to the support platform and meshes with a rack. The rack is fixed to the capacitor cabinet door.

[0010] As a further optimization of the present invention, the adjustment mechanism includes a snap-fit ​​bracket fixed to a support platform, a connecting shaft snapped into the snap-fit ​​bracket, the connecting shaft fixed to a telescopic rod, the telescopic rod slidably connected to a corner bracket, one end of the corner bracket rotatably connected to a lifting frame, the middle part of the corner bracket rotatably connected to an adjustment block, the adjustment block connected to an adjustment screw, the adjustment screw rotatably connected to a capacitor chamber, the bottom end of the adjustment screw fixedly connected to the output end of an adjustment motor, the adjustment motor fixed in a protective bracket, the protective bracket fixed to the bottom of a support frame, and a mounting plate fixedly connected to the corner bracket, on which humidity sensors are symmetrically mounted.

[0011] As a further optimization of the present invention, the heat exchange mechanism includes a plate heat exchanger fixed in the transformer chamber. The plate heat exchanger is provided with a first pipe and a second pipe. A heat exchange pump is connected to the first pipe. The heat exchange pump is connected to the fluorinated liquid chamber inside the transformer through a pipe. The second pipe is connected to the fluorinated liquid chamber inside the transformer. The plate heat exchanger is provided with an inlet pipe and an outlet pipe, and a water receiving pipe is fixedly connected to both the inlet pipe and the outlet pipe.

[0012] As a further optimization of the present invention, the anti-scaling mechanism includes an intermediate pipe rotatably installed at one end in the inlet pipe and the outlet pipe, and the other end of the intermediate pipe rotatably connected to the receiving pipe. An annular sealing ring is provided at the connection between the intermediate pipe and the inlet pipe, the outlet pipe and the receiving pipe. A pipe scraper is provided in the intermediate pipe and is attached to the inner wall of the inlet pipe, the outlet pipe and the receiving pipe.

[0013] As a further optimization of the present invention, the plate heat exchanger is rotatably connected to a first support shaft and a second support shaft. A connecting wheel is provided on both the first and second support shafts, and a connecting belt is wound around the connecting wheel. The connecting belt is wound around the intermediate tube. A first transmission wheel and a second transmission wheel are respectively provided on the first and second support shafts. A transmission belt is wound around both the first and second transmission wheels, and the transmission belt is sleeved on a support wheel. The support wheel is rotatably connected to the transformer chamber through a bracket.

[0014] As a further optimization of the present invention, a piston plate is fixed on the transmission belt, the piston plate is slidably connected in the pressure tube, a sealing sleeve is slidably connected on the pressure tube, the sealing sleeve is fixed on the piston plate, a spring is provided on the top of the piston plate, the top end of the spring is fixed on a microporous plate, air passage microholes are uniformly opened on the microporous plate, and the microporous plate is fixed on the top end of the pressure tube, and the bottom end of the pressure tube is connected to the first pipe.

[0015] The beneficial effects of this invention are as follows: 1. This invention uses an adjustment mechanism to install a humidity sensor. During the rotation of the adjustment screw driven by the adjustment motor, the corner bracket and mounting plate move along the axis of the adjustment screw via the adjustment block, expanding the monitoring range of the humidity sensor. During dehumidification, the first, second, and third ventilation fans operate simultaneously. The first and third ventilation fans exhaust the air inside the capacitor chamber. At the same time, as the adjustment block moves, it pulls the lifting frame and the second ventilation fan along the guide rail via the corner bracket, adjusting the height range of the second ventilation fan and adjusting the airflow direction inside the capacitor chamber during dehumidification, thus ensuring the dehumidification effect.

[0016] 2. In the process of the adjusting block sliding along the axis of the adjusting screw, the connecting shaft connects the clamping bracket to drive the support platform to move up and down along the sliding guide rail. As the support platform moves with the sliding block, the second gear will rotate by meshing with the rack during the up and down movement. At the same time, the meshing will drive the first gear and the cleaning roller brush to rotate in opposite directions. Then, the cleaning roller brush will rotate to clean the bottom air outlet and vent, preventing the air flow slot from being covered by dust.

[0017] 3. When the electronic fluorinated liquid temperature is too high during operation in extreme environments, the heat exchange pump will extract the electronic fluorinated liquid from inside the transformer and discharge it into the plate heat exchanger through the first pipe for heat exchange. Then, it will re-enter the fluorinated liquid chamber inside the transformer through the second pipe. During this process, the inlet and outlet pipes are respectively connected to an external water pump and a water storage tank to form a cooling water circulation structure. As the heat exchange pump adjusts its output power according to temperature changes, the pressure change inside the first pipe will be transmitted to the pressure pipe. Then, the piston plate will be balanced by the extension and contraction of the spring. As the piston plate moves up and down with the pressure change, it will drive the second transmission wheel and the first transmission wheel to rotate synchronously through the transmission belt. In turn, the connecting wheel on the first and second support shafts will drive the connecting belt to rotate. The connecting belt will drive the intermediate tube to rotate. During the rotation of the intermediate tube, the inner wall of the inlet and outlet pipes can be cleaned by the pipe scraper to prevent scale buildup on the inner wall of the inlet and outlet pipes connected to the cooling water, which will affect the heat exchange efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional diagram of the overall structure of the present invention; Figure 2 This is a partial top view of the structure of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the internal structure of the capacitor chamber in this invention; Figure 5 yes Figure 4 A magnified view of a portion of region A in the middle; Figure 6This is an assembly diagram of the dehumidification mechanism and the regulating mechanism in this invention; Figure 7 yes Figure 6 A magnified view of a portion of region B in the middle; Figure 8 This is a schematic diagram of the installation structure of the air vent cleaning mechanism in this invention; Figure 9 This is a schematic diagram of the installation structure of the anti-scaling mechanism in this invention; Figure 10 This is an exploded structural diagram of the anti-scaling mechanism in this invention.

[0019] In the diagram: 1. Support frame; 2. Top cover; 3. Capacitor compartment; 4. Dehumidification mechanism; 5. Air vent cleaning mechanism; 6. Adjustment mechanism; 7. Transformer compartment; 8. Transformer; 9. Anti-scaling mechanism; 10. Heat exchange mechanism; 11. Communication and power acquisition compartment; 12. Automation compartment; 13. Low-voltage cabinet compartment; 14. High-voltage cabinet compartment; 101. Plate heat exchanger; 102. First pipe; 103. Second pipe; 104. Heat pump; 105. Inlet pipe; 106. Outlet pipe; 107. Water inlet pipe; 401. Capacitor cabinet door; 402. Bottom air outlet; 403. First ventilation fan; 404. Outer baffle; 405. Vent; 406. Guide rail; 407. Lifting frame; 408. Second ventilation fan; 409. Top air outlet net; 410. Third ventilation fan; 411. Installation... Mounting plate; 412, humidity sensor; 501, sliding guide rail; 502, sliding block; 503, support platform; 504, support shaft; 505, cleaning roller brush; 506, first gear; 507, second gear; 508, rack; 601, snap-fit ​​bracket; 602, connecting shaft; 603, telescopic rod; 604, corner bracket; 605, adjusting block; 606, adjusting screw; 607, adjusting motor; 608, protective bracket; 901, intermediate tube; 902, pipe scraper; 903, connecting belt; 905, transmission belt; 906, support wheel; 907, piston plate; 908, pressure tube; 909, sealing sleeve; 910, spring; 911, micro-perforated plate; 912, first support shaft; 913, second support shaft; 914, first transmission wheel; 915, second transmission wheel. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example: Please refer to Figures 1-10A reactive power compensation prefabricated substation includes a support frame 1. A top cover 2 is installed on the top of the support frame 1, and the top cover 2 is fixed to the support frame 1 by sheet metal parts to prevent rainwater from accumulating on the top of the prefabricated substation, reducing the risk of leakage, protecting the enclosure's airtightness, and extending equipment life. The support frame 1 serves as the skeleton structure of the prefabricated substation, providing overall rigidity and stability. Inside the support frame 1, on one side, are respectively arranged a capacitor room 3, a communication and power acquisition room 11, and an automation room 12. Power acquisition equipment and communication equipment are arranged vertically in the communication and power acquisition room 11. The rooms are isolated from each other by partitions. A low-voltage cabinet 13 is located on one side of the communication and power acquisition room 11, a high-voltage cabinet 14 is located on one side of the low-voltage cabinet 13, and a transformer room 7 is located on one side of the high-voltage cabinet 14. The entire support frame 1 uses a lightweight sheet metal structure that is fixed together. After the sheet metal parts are connected and fixed, partitions are installed inside to divide the internal space of the entire support frame 1 into a capacitor room 3, a communication and power acquisition room 11, an automation room 12, a transformer room 7, a low-voltage cabinet room 13, and a high-voltage cabinet room 14. Reactive power compensation capacitors are installed in the capacitor room 3 to improve the power factor and reduce grid losses. The communication and power acquisition room 11 has a built-in communication module for remote monitoring and data transmission. The internal power acquisition equipment collects power data and monitors electrical parameters such as voltage, current, and power in real time. The low-voltage cabinet room 13 houses circuit breakers and metering instruments, distributing low-voltage power and protecting low-voltage lines. The high-voltage cabinet room 14 houses disconnect switches and protective relays, primarily responsible for controlling the high-voltage incoming and outgoing lines. The transformer room 7 is an independent, enclosed space housing the core equipment, the transformer 8, and isolating it from electromagnetic interference and heat. The capacitor room 3 is equipped with a dehumidification mechanism 4. 4 is responsible for accelerating the gas circulation speed inside the box-type substation and exchanging air with the outside, reducing humidity and thus preventing electrical equipment from short-circuiting or aging due to moisture. The dehumidification mechanism 4 is equipped with an air vent cleaning mechanism 5 to prevent the air exchange channel from being blocked, maintain dehumidification efficiency, and reduce maintenance frequency. The air vent cleaning mechanism 5 is installed on the regulating mechanism 6. The transformer 8 is equipped with a heat exchange mechanism 10, which is connected to the electronic fluorinated liquid chamber in the transformer 8 and is responsible for cooling the high-temperature electronic fluorinated liquid. The heat exchange mechanism 10 is equipped with an anti-scaling mechanism 9 to prevent scale buildup at the connection of the cooling water pipe. The dehumidification mechanism 4 includes a capacitor cabinet door 401 that is rotatably connected to the capacitor chamber 3 via a hinge. Bottom air outlets 402 are evenly distributed on one side of the bottom of the capacitor cabinet door 401. First ventilation fans 403 are evenly distributed on the inner side of the capacitor cabinet door 401 near the bottom air outlets 402. When the first ventilation fans 403 are working, they can exhaust internal air through the bottom air outlets 402. An outer baffle 404 is provided on the outer side of the capacitor cabinet door 401. Ventilation openings 405 are formed on the outer baffle 404 by stamping. The ventilation openings 405 face downwards to prevent rainwater from entering obliquely. A top air outlet mesh 409 is symmetrically distributed on one side of the top of the capacitor cabinet door 401, and a third ventilation fan 410 is symmetrically distributed on the side of the low-pressure cabinet chamber 13 near the top air outlet mesh 409. The third ventilation fan 410 serves as a fixed ventilation point and an auxiliary dehumidification part, exhausting internal air from the top air outlet 409. The dehumidification mechanism 4 also includes guide rails 406 symmetrically installed on the inner wall of the capacitor chamber 3. A lifting frame 407 is slidably connected to the guide rails 406. Second ventilation fans 408 are evenly installed on the lifting frame 407. The first ventilation fan 403, the second ventilation fan 408, and the third ventilation fan 410 are all composed of brushless motors and fan blades. The brushless motor is selected according to the actual use. The guide rail 406 is used to slide and support the second ventilation fan 408. The second ventilation fan 408 is installed on the lifting frame 407 as a mobile fan structure, which can adjust the airflow inside the capacitor chamber 3 by changing its height. The air vent cleaning mechanism 5 includes sliding guide rails 501 symmetrically installed on the inner wall of the capacitor cabinet door 401. Sliding blocks 502 are slidably connected to the sliding guide rails 501. Support platforms 503 are bolted to the sliding blocks 502. The support platforms 503 are slidably connected in a through groove on the capacitor cabinet door 401. A support shaft 504 is rotatably connected between the support platforms 503. A cleaning roller brush 505 is fixedly sleeved on the support shaft 504. The cleaning roller brush 505 is in contact with the bottom air outlet 402 and the vent 405. During rotation, the cleaning roller brush 505 can simultaneously clean the bottom air outlet 402 and the vent 405, preventing dust accumulation. The first gear 506 is fixedly installed at both ends of the support shaft 504. The first gear 506 meshes with the second gear 507. The second gear 507 is rotatably connected to the support platform 503 through bearings. The second gear 507 meshes with the rack 508. The rack 508 is fixed to the outside of the capacitor cabinet door 401 by bolts. During the movement of the support platform 503 following the sliding block 502, the second gear 507 meshes with the rack 508 and rotates during the up and down movement. At the same time, the meshing drives the first gear 506 and the cleaning roller brush 505 to rotate in opposite directions. Then, the cleaning roller brush 505 rotates to clean the bottom air outlet 402 and the vent 405. The adjusting mechanism 6 includes a snap-fit ​​bracket 601 bolted to the support platform 503. A connecting shaft 602 is snapped into the snap-fit ​​bracket 601. When the capacitor cabinet door 401 is not closed, the snap-fit ​​bracket 601 and the connecting shaft 602 are disengaged. When the capacitor cabinet door 401 is rotated to close, the connecting shaft 602 is engaged with the snap-fit ​​bracket 601. The connecting shaft 602 is fixed to the telescopic rod 603. The telescopic rod 603 is slidably connected to the corner bracket 604. One end of the corner bracket 604 is rotatably connected to the lifting frame 407. The middle part of the corner bracket 604 is rotatably connected to the support rod on one side of the adjusting block 605. The adjusting block 605 is connected to the adjusting screw 606 via ball bearings. The adjusting screw 606 is rotatably connected to the capacitor chamber 3. The bottom end of the adjusting screw 606 is fixedly connected to the adjusting... The output end of motor 607 is adjusted. The motor 607 is selected according to the actual use. The motor 607 is fixed in the protective bracket 608. The protective bracket 608 is fixed to the bottom of the support frame 1. The protective bracket 608 is used to enclose and protect the motor 607 to prevent water damage. The corner bracket 604 is fixedly connected to the mounting plate 411 by bolts. The mounting plate 411 is symmetrically installed with humidity sensors 412. The humidity sensors 412 collect the humidity inside the capacitor chamber 3 and connect to the first ventilation fan 403, the second ventilation fan 408 and the third ventilation fan 410 in the dehumidification mechanism 4 through an external controller for dehumidification. The bottom of the support frame 1 is provided with a dehumidification air inlet pipe to adjust the internal air pressure during the dehumidification process. The heat exchange mechanism 10 includes a plate heat exchanger 101 fixed in the transformer chamber 7. A first pipe 102 and a second pipe 103 are respectively installed on the plate heat exchanger 101. A heat exchange pump 104 is connected to the first pipe 102, and the heat exchange pump 104 is connected to the fluorinated liquid chamber inside the transformer 8 via a pipe. The second pipe 103 is also connected to the fluorinated liquid chamber inside the transformer 8. A temperature sensor is installed in the fluorinated liquid chamber inside the transformer 8 to monitor the temperature of the fluorinated liquid in real time. When the temperature of the electronic fluorinated liquid is too high, the heat exchange pump 104 extracts the electronic fluorinated liquid from inside the transformer 8 and discharges it into the plate heat exchanger 101 through the first pipe 102 for heat exchange. Afterward, it re-enters the fluorinated liquid chamber inside the transformer 8 through the second pipe 103. The 101 is equipped with an inlet pipe 105 and an outlet pipe 106, which are respectively connected to an external water pump and a water storage tank. Air cooling can be arranged to accelerate the cooling process of the cooling water as needed. The anti-scaling mechanism 9 includes an intermediate pipe 901, one end of which is rotatably installed in the inlet pipe 105 and the outlet pipe 106. The other end of the intermediate pipe 901 is rotatably connected to a receiving pipe 107. Threaded rods on the inlet pipe 105 and the outlet pipe 106 are fitted onto a flange on the receiving pipe 107. The position of the receiving pipe 107 is adjusted and fixed by two independent nuts. After fixing, one end of the intermediate pipe 901 is attached to the receiving pipe 107, and the other end of the intermediate pipe 901 is attached to the inlet pipe 105 and the outlet pipe 106. A ring-shaped sealing ring is arranged at the joint to ensure the sealing of the connection. A pipe scraper 902 is installed in the intermediate pipe 901. The pipe scraper 902 is attached to the inner wall of the inlet pipe 105, outlet pipe 106 and connecting pipe 107. During the rotation of the intermediate pipe 901, the pipe scraper 902 can clean the inner wall of the pipe to prevent structural damage. A first support shaft 912 and a second support shaft 913 are rotatably connected to the plate heat exchanger 101. Both the first support shaft 912 and the second support shaft 913 are equipped with connecting wheels. A connecting belt 903 is wound around the connecting wheel and is wound around the intermediate pipe 901. A first drive wheel 914 and a second drive wheel 915 are respectively installed on the first support shaft 912 and the second support shaft 913. All components are wound with a transmission belt 905, which is sleeved on a support wheel 906. The support wheel 906 is rotatably connected to the transformer chamber 7 via a bracket. A piston plate 907 is fixed on the transmission belt 905 and slidably connected to a pressure pipe 908. A sealing sleeve 909 is slidably connected to the pressure pipe 908 and fixed to the piston plate 907. A spring 910 is provided on the top of the piston plate 907, and the top of the spring 910 is fixed to a microporous plate 911. The microporous plate 911 has uniformly distributed micropores for air passage and is fixed to the top of the pressure pipe 908. The bottom end of the pressure pipe 908 is connected to the first pipe 102. The pressure inside the pressure pipe 908 is consistent with the liquid pressure in the first pipe 102.When the power of the heat exchange pump 104 changes, the internal pressure of the first pipe 102 changes, which is transmitted to the pressure pipe 908. Then, the extension and contraction of the spring 910 balances the force on the piston plate 907. As the piston plate 907 moves up and down following the pressure changes, it pulls the first drive wheel 914 and the second drive wheel 915 to rotate via the transmission belt 905. This, in turn, pulls the intermediate pipe 901 to rotate via the connecting belt 903. During the rotation of the intermediate pipe 901, the inner walls of the inlet pipe 105 and the outlet pipe 106 are cleaned by the pipe scraper 902.

[0022] It should be noted that, in the use of this type of reactive power compensation prefabricated substation, the lightweight plate structure is first fixed together to form the overall structure of the support frame 1 on site. After the plates are connected and fixed, an internal isolation plate is installed to divide the internal space of the entire support frame 1 into a capacitor room 3, a communication and power acquisition room 11, an automation room 12, a transformer room 7, a low-voltage cabinet room 13, and a high-voltage cabinet room 14. Reactive power compensation capacitors are installed in the capacitor room 3 to improve the power factor and reduce grid losses. The communication module built into the communication and power acquisition room 11 allows for remote monitoring and... Data transmission is performed by internally installed power acquisition equipment, which can monitor electrical parameters such as voltage, current, and power in real time. The low-voltage cabinet 13 houses circuit breakers and metering instruments, distributing low-voltage power and protecting low-voltage lines. The high-voltage cabinet 14 contains disconnect switches and protective relays, primarily responsible for controlling the high-voltage incoming and outgoing lines. During operation, the humidity sensor 412 is installed via the regulating mechanism 6. As the regulating motor 607 drives the regulating screw 606 to rotate, it drives the corner bracket 604 and mounting plate 411 along the regulating block 605. As the adjusting screw 606 moves along its axis, the monitoring range of the humidity sensor 412 is expanded. During dehumidification, the first ventilation fan 403, the second ventilation fan 408, and the third ventilation fan 410 operate simultaneously. The first and third ventilation fans 403 and 410 exhaust the air inside the capacitor chamber 3. Simultaneously, as the adjusting block 605 moves, it pulls the lifting frame 407 and the second ventilation fan 408 along the guide rail 406 via the corner bracket 604, adjusting the height range of the second ventilation fan 408 and thus the airflow direction inside the capacitor chamber 3 during dehumidification, ensuring proper dehumidification. Wet effect; During the sliding of the adjusting block 605 along the axis of the adjusting screw 606, the connecting shaft 602 connects to the connecting bracket 601, which drives the support platform 503 to move up and down along the sliding guide rail 501. As the support platform 503 moves with the sliding block 502, the second gear 507 moves up and down, and rotates through meshing with the rack 508. At the same time, through meshing, the first gear 506 and the cleaning roller brush 505 rotate in opposite directions. Then, the cleaning roller brush 505 rotates to clean the bottom air outlet 402 and the vent 405, preventing dust from covering the airflow slot.During the operation of transformer 8, the temperature of the fluorinated liquid is monitored in real time by a temperature sensor installed in the fluorinated liquid chamber. When the temperature of the electronic fluorinated liquid is detected to be too high, the heat exchange pump 104 will extract the electronic fluorinated liquid from inside transformer 8 and discharge it into plate heat exchanger 101 through the first pipe 102 for heat exchange. Then, it will re-enter the fluorinated liquid chamber inside transformer 8 through the second pipe 103. During this process, the inlet pipe 105 and the outlet pipe 106 are respectively connected to an external water pump and a water storage tank, forming a cooling water circulation structure. As the heat exchange pump 104 adjusts its output power according to temperature changes, the pressure change inside the first pipe 102 will be transmitted to the pressure pipe 90. In step 8, the piston plate 907 is balanced by the extension and retraction of the spring 910. As the piston plate 907 moves up and down with pressure changes, it drives the second transmission wheel 915 and the first transmission wheel 914 to rotate synchronously via the transmission belt 905. This, in turn, drives the connecting belt 903 via the connecting wheels on the first and second support shafts 912 and 913. The connecting belt 903 pulls the intermediate tube 901 to rotate. During the rotation of the intermediate tube 901, the inner walls of the inlet pipe 105 and outlet pipe 106 are cleaned by the pipe scraper 902, preventing scale buildup on the inner walls of the cooling water inlet pipe 105 and outlet pipe 106, which affects heat exchange efficiency.

[0023] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A prefabricated substation with reactive power compensation, comprising a support frame (1), characterized in that: The top of the support frame (1) is provided with a top cover plate (2). The inside of the support frame (1) is provided with a capacitor chamber (3), a communication and power acquisition chamber (11) and an automation chamber (12). The communication and power acquisition chamber (11) is provided with a low-voltage cabinet chamber (13) on one side. The low-voltage cabinet chamber (13) is provided with a high-voltage cabinet chamber (14) on one side. The high-voltage cabinet chamber (14) is provided with a transformer chamber (7) on one side. The inside of the capacitor chamber (3) is provided with a dehumidification mechanism (4). The dehumidification mechanism (4) is provided with an air vent cleaning mechanism (5). The air vent cleaning mechanism (5) is installed on an adjustment mechanism (6). The transformer chamber (7) is fixed with a transformer (8). The transformer (8) is provided with a heat exchange mechanism (10). The heat exchange mechanism (10) is provided with an anti-scaling mechanism (9).

2. A prefabricated substation with reactive power compensation according to claim 1, characterized in that: The dehumidification mechanism (4) includes a capacitor cabinet door (401) rotatably connected to the capacitor chamber (3). A bottom air outlet (402) is evenly provided on one side of the bottom of the capacitor cabinet door (401). A first ventilation fan (403) is evenly provided on the inner side of the capacitor cabinet door (401) near the bottom air outlet (402). An outer baffle (404) is provided on the outer side of the capacitor cabinet door (401). A vent (405) is provided on the outer baffle (404). A top air outlet net (409) is symmetrically provided on one side of the capacitor cabinet door (401). A third ventilation fan (410) is symmetrically provided on the side of the low-pressure cabinet chamber (13) near the top air outlet net (409).

3. A prefabricated substation with reactive power compensation according to claim 2, characterized in that: The dehumidification mechanism (4) also includes guide rails (406) symmetrically installed on the inner wall of the capacitor chamber (3), a lifting frame (407) is slidably connected on the guide rails (406), and a second ventilation fan (408) is evenly installed on the lifting frame (407).

4. A prefabricated substation with reactive power compensation according to claim 2, characterized in that: The air vent cleaning mechanism (5) includes a sliding guide rail (501) symmetrically installed on the inner wall of the capacitor cabinet door (401), a sliding block (502) is slidably connected on the sliding guide rail (501), a support platform (503) is provided on the sliding block (502), and the support platform (503) is slidably connected in a through groove opened on the capacitor cabinet door (401).

5. A prefabricated substation with reactive power compensation according to claim 4, characterized in that: A support shaft (504) is rotatably connected between the support platforms (503). A cleaning roller brush (505) is fixedly sleeved on the support shaft (504). The cleaning roller brush (505) is located between the capacitor cabinet door (401) and the outer baffle (404). A first gear (506) is fixedly installed at both ends of the support shaft (504). The first gear (506) meshes with a second gear (507). The second gear (507) is rotatably connected to the support platform (503) and meshes with a rack (508). The rack (508) is fixed to the capacitor cabinet door (401).

6. A prefabricated substation for reactive power compensation according to claim 5, characterized in that: The adjusting mechanism (6) includes a snap-fit ​​bracket (601) fixed on a support platform (503), in which a connecting shaft (602) is snapped. The connecting shaft (602) is fixed on a telescopic rod (603), which is slidably connected to a corner bracket (604). One end of the corner bracket (604) is rotatably connected to a lifting frame (407), and the middle part of the corner bracket (604) is rotatably connected to an adjusting block (605). The adjustment screw (606) is rotatably connected to the capacitor chamber (3). The bottom end of the adjustment screw (606) is fixedly connected to the output end of the adjustment motor (607). The adjustment motor (607) is fixed in the protective bracket (608). The protective bracket (608) is fixed at the bottom of the support frame (1). The corner bracket (604) is fixedly connected to the mounting plate (411). The mounting plate (411) is symmetrically equipped with humidity sensors (412).

7. A prefabricated substation with reactive power compensation according to claim 1, characterized in that: The heat exchange mechanism (10) includes a plate heat exchanger (101) fixed in the transformer chamber (7). The plate heat exchanger (101) is provided with a first pipe (102) and a second pipe (103). A heat exchange pump (104) is connected to the first pipe (102). The heat exchange pump (104) is connected to the fluorinated liquid chamber inside the transformer (8) through a pipe. The second pipe (103) is connected to the fluorinated liquid chamber inside the transformer (8). The plate heat exchanger (101) is provided with an inlet pipe (105) and an outlet pipe (106). A water receiving pipe (107) is fixedly connected to both the inlet pipe (105) and the outlet pipe (106).

8. A prefabricated substation with reactive power compensation according to claim 7, characterized in that: The anti-scaling mechanism (9) includes an intermediate pipe (901) with one end rotatably installed in the inlet pipe (105) and the outlet pipe (106), and the other end of the intermediate pipe (901) is rotatably connected to the receiving pipe (107). An annular sealing ring is provided at the connection between the intermediate pipe (901) and the inlet pipe (105), the outlet pipe (106) and the receiving pipe (107). A pipe scraper (902) is provided in the intermediate pipe (901), and the pipe scraper (902) is attached to the inner wall of the inlet pipe (105), the outlet pipe (106) and the receiving pipe (107).

9. A prefabricated substation with reactive power compensation according to claim 8, characterized in that: The plate heat exchanger (101) is rotatably connected to a first support shaft (912) and a second support shaft (913). Both the first support shaft (912) and the second support shaft (913) are provided with connecting wheels. A connecting belt (903) is wound around the connecting wheel and the connecting belt (903) is wound around the intermediate tube (901). The first support shaft (912) and the second support shaft (913) are respectively provided with a first transmission wheel (914) and a second transmission wheel (915). Both the first transmission wheel (914) and the second transmission wheel (915) are wound with a transmission belt (905). The transmission belt (905) is sleeved on a support wheel (906). The support wheel (906) is rotatably connected to the transformer chamber (7) through a bracket.

10. A prefabricated substation for reactive power compensation according to claim 9, characterized in that: A piston plate (907) is fixed on the transmission belt (905). The piston plate (907) is slidably connected in the pressure tube (908). A sealing sleeve (909) is slidably connected on the pressure tube (908). The sealing sleeve (909) is fixed on the piston plate (907). A spring (910) is provided on the top of the piston plate (907). The top end of the spring (910) is fixed on the microporous plate (911). The microporous plate (911) has uniformly opened air perforations. The microporous plate (911) is fixed on the top end of the pressure tube (908). The bottom end of the pressure tube (908) is connected to the first pipe (102).

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