Wind power plant box transformer substation foundation ventilation structure
The automatic adjustment of the louvered windows controlled by rain and snow sensors solves the problem of temperature regulation in the foundation chamber of the wind farm transformer under severe weather conditions, and improves the protection and heat dissipation efficiency of the cables.
Patent Information
- Application Number
- CN202520307089.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The temperature of the transformer substation foundation chamber in wind farms is difficult to regulate effectively in severe weather, which can lead to overheating, damage, or short circuits in the cables. Existing ventilation holes are also susceptible to damage from rain and snow during strong winds, rain, and snow.
Design a ventilation structure for the foundation of a wind farm transformer box. Use a rain and snow sensor to monitor the weather conditions and control the opening and closing of the louvers by a drive motor to automatically adjust the ventilation to prevent rain and snow from entering and accelerate heat dissipation.
It effectively prevents rain and snow from entering the poured foundation, protects cables, improves heat dissipation efficiency, reduces construction costs, and adapts to harsh weather conditions.
Smart Images
Figure CN223815947U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wind power plant construction structure field especially a wind power plant box transformer foundation ventilation structure. BACKGROUND
[0002] The operation environment of the wind power project is often accompanied by strong wind and snow, and the site environment is relatively poor. In wind power generation, the voltage needs to be boosted to 35kv or 66kv through a box-type transformer (referred to as box transformer) at the outlet end of the fan, and then transmitted to the booster station through the cable. A pouring foundation is arranged below the box-type transformer for supporting its own weight and connecting the transmission cable. During the boosting process, the lower connecting cable is in a sealed chamber of the pouring foundation. Therefore, the cable in the chamber is easy to heat up in summer, which affects power transmission and increases power loss. If simple ventilation holes are provided, the cable may be soaked and damaged due to rain and snow in strong wind and snow weather. If the holes are manually opened and closed, it is difficult to close the holes in time when a sudden strong wind and snow occur, which causes rain and snow to penetrate into the pouring foundation and soak the cable, and also easily causes cable damage and connection short circuit. SUMMARY
[0003] The utility model solves the technical problem to provide a wind power plant box transformer foundation ventilation structure which can automatically open or close the ventilation window according to the weather state, and further realize temperature regulation of the internal chamber of the pouring foundation.
[0004] The utility model adopts the technical scheme that the wind power plant box transformer foundation ventilation structure comprises a pouring foundation, a sealed chamber is arranged in the pouring foundation, at least one ventilation window and a driving motor, the driving motor is used for driving the opening and closing of the ventilation window, the ventilation window is arranged on the side wall of the pouring foundation, the chamber is communicated with the outside through the ventilation window, a snow sensor is arranged, and the snow sensor and the driving motor are connected through a cable.
[0005] Further, a transmission shaft for driving the opening and closing of the ventilation window is arranged, one end of the transmission shaft is connected with the output shaft of the driving motor, the other end of the transmission shaft is connected with the ventilation window, and the rotation direction of the driving motor comprises forward rotation and reverse rotation.
[0006] Further, the ventilation window is a louver window.
[0007] Further, the ventilation window is arranged in the horizontal direction, and the ventilation windows are driven to open and close through the transmission shaft.
[0008] Further, the ventilation window is arranged on the side wall of the pouring foundation and closely contacts the top surface of the pouring foundation.
[0009] Further, the bottom of the rain and snow sensor is arranged on the top surface of the pouring foundation.
[0010] Further, the pouring foundation is a brick and concrete masonry mechanism or a reinforced concrete structure.
[0011] Further, the support channel steel is arranged in the pouring foundation and arranged in the horizontal direction.
[0012] The beneficial effects of the utility model are: 1. The rain and snow sensor monitors the weather condition of the outside world, when it is rainy and snowy, the rain and snow sensor transmits the signal to the driving motor and starts the driving motor. The driving motor closes the ventilation window, thereby preventing the rain and snow from entering the inside of the pouring foundation, effectively protecting the cable. When the rain and snow sensor monitors that the outside weather is not rainy and snowy, the ventilation window is opened through the reverse rotation of the driving motor, realizing the heat dissipation and ventilation of the inside of the pouring foundation. 2. The ventilation window can be arranged in the horizontal direction, thereby increasing the number of ventilation windows and accelerating the heat dissipation and ventilation efficiency of the inside of the pouring foundation. 3. The ventilation window can adopt the louver, which can not only realize the snow and water prevention, but also reduce the construction cost. 4. The ventilation window can be arranged on the side wall of the pouring foundation close to the top surface of the pouring foundation, which can prevent the external accumulated water or snow from flowing down, and the hot air in the inside of the pouring foundation is mainly distributed above the inside of the pouring foundation, so that the heat dissipation can be better realized.
[0013] The utility model is especially suitable for the structure of the wind power field box transformer. ACCURATE DRAWINGS
[0014] Figure 1 It is the plan view of the wind power field box transformer foundation ventilation structure of the utility model.
[0015] Figure 2 It is Figure 1 A-A sectional view of it.
[0016] Figure 3 It is Figure 1 B-B sectional view of it.
[0017] In the drawing, it is marked as: pouring foundation 100, support channel steel 110, cable trench reserved hole 120, rain and snow sensor 200, cable line 210, driving motor 220, transmission shaft 230, ventilation window 300. CONCRETE IMPLEMENTATION
[0018] The utility model is further explained in connection with the drawings and examples.
[0019] For example, Figure 1 , Figure 2 and Figure 3An embodiment of the wind farm box transformer foundation ventilation structure is shown. The pouring foundation 100 can be a brick and concrete masonry structure or a reinforced concrete structure. The pouring foundation 100 has cable trench reserved holes 120 on the side walls. The cables in the pouring foundation 100 are connected to the buried cable trench of the external power collection line through the cable trench reserved holes 120. The cable trench reserved holes 120 and the buried cable trench of the power collection line are sealed structures in use. The box transformer is arranged on the pouring foundation 100. The cables of the box transformer are arranged in the cavity of the pouring foundation 100, and then enter the buried cable trench of the power collection line through the cable trench reserved holes 120. The supporting channel steel 110 is arranged in the pouring foundation 100 and arranged in the horizontal direction to improve the bearing strength of the pouring foundation 100.
[0020] Three ventilation windows 300, which can be louver windows, are arranged on the side walls of the pouring foundation 100 above the top surface of the pouring foundation 100 and spaced apart in the horizontal direction. By opening and closing the louver windows, heat dissipation inside the pouring foundation 100 and rain and snow shielding outside can be achieved. The height of the top of the side wall of the pouring foundation 100 is preferably higher than the natural ground surface by 500 mm. Arranged at this height, not only can prevent external rain and snow from entering the pouring foundation 100 through the louver windows, but also can discharge hot air accumulated above the internal space of the pouring foundation 100 during heat dissipation. Among them, the two opposite side walls of the pouring foundation 100 are respectively provided with three ventilation windows 300, a total of six. The oppositely arranged ventilation windows 300 effectively improve the effect of air convection and improve the heat dissipation efficiency. The louver windows on each side wall are controlled by opening and closing a common transmission shaft 230. A gear can be arranged on the louver window, which is engaged with the gear at the end of the transmission shaft 230. The driving motor 220 drives the transmission shaft 230 to rotate forward or reverse by forward or reverse rotation, thereby driving the gear on the louver window to rotate, and finally achieving the opening and closing control of the louver window.
[0021] The rain and snow sensor 200 is arranged outside to directly detect the weather state. The bottom of the rain and snow sensor 200 can be arranged on the top surface of the pouring foundation 100, and the rain and snow sensor 200 is connected to the driving motor 220 through the cable 210. After the rain and snow sensor 200 detects rain and snow, the single-chip microcomputer of the rain and snow sensor 200 transmits a signal to the driving motor 220 to start the driving motor 220, and closes the louver window through the transmission shaft 230 by the aforementioned control method. Conversely, when the rain and snow sensor 200 detects no rain and snow, the driving motor 220 is reversed to open the louver window.
Claims
1. A ventilation structure for a wind farm transformer foundation, comprising a cast-in-place foundation (100) having a closed chamber (200) formed therein, characterized in that: The application comprises a driving motor (220) and at least one ventilation window (300), the driving motor (220) is used to drive the opening and closing of the ventilation window (300), the ventilation window (300) is arranged on the side wall of the pouring foundation (100), and the cavity is communicated with the outside through the ventilation window (300); the application comprises a rain and snow sensor (200), and the rain and snow sensor (200) is connected with the driving motor (220) through a cable (210).
2. The wind farm transformer foundation vent structure of claim 1, wherein: The application comprises a transmission shaft (230) used to drive the opening and closing of the ventilation window (300), one end of the transmission shaft (230) is connected with the output shaft of the driving motor (220), the other end of the transmission shaft (230) is connected with the ventilation window (300), and the rotating direction of the driving motor (220) comprises forward rotation and reverse rotation.
3. The wind farm transformer foundation vent structure of claim 2, wherein: The ventilation window (300) is a louver window.
4. The wind farm transformer foundation vent structure of claim 3, wherein: The ventilation window (300) is arranged in the horizontal direction, and the ventilation windows (300) are driven to open and close through the transmission shaft (230).
5. Wind farm transformer foundation vent structure according to any of claims 1 to 4, characterized in that: The ventilation window (300) is arranged on the side wall of the pouring foundation (100) and is close to the top surface of the pouring foundation (100).
6. Wind farm transformer foundation vent structure according to any of claims 1 to 4, characterized in that: The bottom of the rain and snow sensor (200) is arranged on the top surface of the pouring foundation (100).
7. A wind farm transformer foundation vent structure according to any one of claims 1 to 4, characterized in that: The pouring foundation (100) is a brick and concrete masonry structure or a reinforced concrete structure.
8. The wind farm transformer foundation vent structure of claim 7, wherein: The application comprises a support channel steel (110), the support channel steel (110) is arranged in the pouring foundation (100), and the support channel steel (110) is arranged in the horizontal direction.