An internal temperature and humidity regulating device for a box-type transformer

Abstract

The application discloses a kind of box-type transformer internal temperature and humidity regulation and control device, specifically related to transformer technical field, including box, the transformer body is installed in the box inside, including, centrifugal fan and regulation and control mechanism being arranged in the box inside, connecting ring, moving plate, mounting plate and drive motor are arranged in regulation and control mechanism and the adjusting assembly for adjusting the environmental parameter of its location, the detection module for detecting at least one environmental parameter of its location, control module is according to the detection data of environmental parameter of the detection module and detection module moving direction, the fixed plate is divided into different influence sections, control module is according to the influence section where this environmental parameter abnormal area is located, control drive motor drives regulation and control mechanism to move to the area causing the environmental parameter anomaly, start corresponding adjusting function in the adjusting assembly, realize the accurate monitoring and regulation and control of the environmental parameter in the box, ensure the safety of transformer body operation process.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, and more specifically, to a temperature and humidity control device for the interior of a box-type transformer. Background Technology

[0002] As a complete set of power distribution equipment, the box-type transformer is an organic combination of transformer, high-voltage voltage control equipment and low-voltage voltage control equipment. It has been widely used in power engineering construction. When the box-type transformer is working, environmental factors such as temperature and humidity inside the box will affect its operation.

[0003] Existing technologies cannot achieve precise and dynamic monitoring of temperature and humidity within the enclosure, especially in areas at different heights around the transformer. This results in poorly targeted control measures, often only allowing for coarse adjustments to the overall environment, making it difficult to effectively address the risks of localized overheating or condensation. Furthermore, existing technologies cannot actively break up air stratification within the enclosure or promote uniform airflow mixing, leading to insufficient representativeness of monitoring data and inaccuracies. Moreover, they can only adjust the overall environment within the enclosure, not specifically addressing abnormal equipment within the enclosure.

[0004] To address the above problems, this invention proposes a solution. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a temperature and humidity control device for the inside of a box-type transformer, thereby solving the problems mentioned in the background art by adding a temperature and humidity control device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A temperature and humidity control device for a box-type transformer includes a box housing, inside which a transformer body is installed. It also includes: a centrifugal fan fixedly disposed inside the box housing; a control mechanism fixedly disposed below the centrifugal fan, the control mechanism including a fixed connecting ring, a fixed plate fixedly disposed below the moving ring, a movable plate slidably disposed on the fixed plate, a mounting plate fixed to one side of the movable plate, and a drive motor for driving the movable plate to reciprocate; a detection module fixedly disposed on the movable plate for detecting at least one environmental parameter at its location; and an adjustment component fixedly disposed on the box housing. The mounting plate is used to adjust the environmental parameters at its location; the control module is electrically connected to the detection module, the drive motor, and the adjustment component; the control module is configured to divide the mounting plate into a transformer body influence section, a centrifugal fan influence section, and a combined influence section of the transformer body and centrifugal fan based on the changes in the environmental parameters and the temperature at the beginning and end of the movement direction of the detection module, using the sensor thermal inertia model formula combined with the Nusselt number correlation. According to the influence section where the abnormal environmental parameter area is located, the control module controls the drive motor to drive the adjustment mechanism to move to the target area that caused the abnormal environmental parameter, and activates the corresponding adjustment function in the adjustment component.

[0007] In a preferred embodiment, the changes in the environmental parameters include the changes in temperature and the rate of temperature change at the highest and lowest points of the fixed plate.

[0008] In a preferred embodiment, the control mechanism further includes a centrifugal fan, a guide vortex housing, a connecting ring, a connecting plate, a monitoring component, and a moving component. The centrifugal fan is fixedly installed on the top surface inside the housing, the guide vortex housing is fixedly installed on the bottom surface of the centrifugal fan outlet, and the connecting ring is fixedly installed on the outer surface of the guide vortex housing.

[0009] In a preferred embodiment, the connecting ring is provided with a threaded hole, a drive motor is fixedly installed above the threaded hole, and a fixing plate is fixedly installed below the threaded hole.

[0010] In a preferred embodiment, the moving component includes a fixed plate, a moving groove, a threaded rod, a moving block, and a drive motor. The fixed plate has a moving groove inside and its bottom is closed. One end of the threaded rod is located at the drive end of the drive motor, and the other end is fixed to the bottom of the fixed plate. The moving block has a threaded hole of the same size as the threaded rod inside, through which the threaded rod passes. When the drive motor starts and drives the threaded rod to rotate, the moving block moves up and down with the rotation of the threaded rod. A moving plate is fixed to the right side of the moving block. Two mounting plates are provided between the left side of the moving plate and the right side of the mounting plate, and are fixed by bolts, so that the moving plate and the mounting plate can move up and down with the moving block.

[0011] In a preferred embodiment, the regulating assembly includes a heater, a finned heat exchanger, a dehumidifier, and a water tank; the heater is fixedly installed at the right end of the left side of the mounting plate and uses a resistance heating element; the finned heat exchanger is fixedly installed at the left end of the left side of the mounting plate and exchanges heat with the air inside the chamber through a circulating medium; the dehumidifier is fixedly installed at the left end of the right side of the mounting plate and uses adsorption dehumidification; the water tank is fixedly installed at the right end of the right side of the mounting plate, and a sealing assembly is provided on the top of the water tank.

[0012] 8. In a preferred embodiment, the sealing assembly includes a limiting rod, a sealing groove, a connecting port, a sealing plate, a spring, and several circular electromagnets. The top of the water tank is provided with a sealing groove, the connecting port is located on the right bottom surface of the sealing groove, and several circular electromagnets are located on the left side of the sealing groove. One end of the limiting rod is fixed to the left side of the sealing groove, and the other end is fixed to the right side of the sealing groove. The limiting rod passes through the spring and the sealing plate in sequence. One end of the spring is fixed to the left side of the sealing groove, and the other end is fixed to the side of the sealing plate. The sealing plate is made of magnetic material, so that the sealing plate can move along the limiting rod under the action of the circular electromagnets and the spring.

[0013] In a preferred embodiment, the control module includes: a signal acquisition unit, whose input is electrically connected to the detection module, for receiving environmental parameter data of the location of the detection module; a processing and analysis unit, connected to the signal acquisition unit, for analyzing the moving direction of the moving detection module and the detected environmental parameters, dividing the transformer body influence section, the centrifugal fan influence section, and the combined influence section of the transformer body and the centrifugal fan, determining the cause of the anomaly based on the influence section corresponding to the height of the maximum deviation, and generating control commands accordingly; and a drive execution unit, whose input is connected to the processing and analysis unit, and whose output is electrically connected to the drive motor and the adjustment component respectively, for driving the start and stop of the drive motor and the switch of the adjustment component according to the control commands.

[0014] In a preferred embodiment, the environmental parameters include temperature and humidity.

[0015] In a preferred embodiment, each of the four side walls of the enclosure is provided with a door mounting frame, and each mounting frame can be provided with a door. The number of doors is one or more, and the doors are installed on the mounting frames of any one or more of the four side walls.

[0016] This invention, by incorporating a centrifugal fan and a guide vortex, generates a downward spiral airflow inside the chamber. This spiral airflow forms a uniform "air curtain," effectively breaking down air stratification within the chamber and forcing forced convection and thorough mixing of air in different areas. This creates a uniform initial environment for subsequent precise monitoring and control, significantly improving the representativeness of temperature and humidity distribution data and the effectiveness of control. This invention incorporates a moving component, enabling a drive motor, threaded rod, and moving block to work together to move a moving plate equipped with a moving detection module in a vertical scanning motion. This achieves dynamic, continuous, and precise monitoring of temperature and humidity at different heights on the outside of the transformer body. By rationally dividing the affected areas, the root cause of temperature and humidity anomalies can be better identified. If the detection data of any environmental parameter within the measurement stroke is abnormal, the drive motor is controlled to move the control mechanism to the target area causing the abnormality and activate the corresponding adjustment function in the control component. This greatly improves the targeting and efficiency of the control and avoids ineffective energy waste. This invention incorporates a sealing assembly that coordinates a circular electromagnet, a sealing plate, a spring, and a connecting port. When the environment inside the chamber becomes too dry, the controller activates the circular electromagnet to attract the sealing plate and open the connecting port, allowing controlled evaporative humidification using condensate stored in the water tank. Once the humidity reaches the target level, the power is cut off, and the sealing plate automatically resets and seals under the action of the spring. This achieves intelligent, controllable, and well-sealed humidification, effectively avoiding the problems of uncontrollable humidification, secondary condensation, or poor sealing associated with traditional methods. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings; Figure 1 This is a schematic diagram of the external structure of the box proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention; Figure 3 This is a bottom view of the internal structure of the housing of the present invention; Figure 4 This is a schematic diagram of the mobile component structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the fixing plate of the present invention; Figure 6 This is a schematic diagram of the adjustment component structure of the present invention; Figure 7 This is a schematic diagram showing the installation location of the monitoring component of the present invention; Figure 8 This is a schematic diagram of the water tank structure of the present invention; Figure 9This is a flowchart of a temperature and humidity control device for an internal box-type transformer according to the present invention.

[0018] In the diagram: 1. Enclosure; 2. Enclosure door; 3. Transformer body; 4. Centrifugal fan; 5. Guide vortex casing; 6. Connecting ring; 7. Moving plate; 8. Connecting plate; 9. Mounting plate; 10. Controller; 11. Transmission module; 12. Temperature sensor; 13. Humidity sensor; 14. Heater; 15. Finned heat exchanger; 16. Dehumidifier; 17. Water tank; 18. Fixed plate; 19. Moving slot; 20. Threaded rod; 21. Moving block; 22. Drive motor; 23. Sealing slot; 24. Connecting port; 25. Limiting rod; 26. Sealing plate; 27. Spring; 28. Circular electromagnet. Detailed Implementation

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

[0020] Example 1, referring to Figures 1 to 8As shown, a box-type transformer internal temperature and humidity control device includes a box body (1), with boxes (2) on all four sides. The transformer body (3) is installed in the center of the box body (1), and the bottom surface of the transformer body (3) is fixedly connected to the bottom surface of the box body (1). A control mechanism is provided above the transformer body (3). The control mechanism includes a centrifugal fan (4), a flow guide vortex shell (5), a connecting ring (6), a moving plate (7), a connecting plate (8), a mounting plate (9), a monitoring component, an adjustment component, and a sealing component. The centrifugal fan (4) is located in the center of the top surface of the box body (1) directly above the transformer body (3). The centrifugal fan (4) is fixedly installed on the inner surface of the top surface of the box body (1). A guide vortex shell (5) is fixedly installed on the bottom surface of its air outlet. The guide vortex shell (5) is equipped with spiral guide vanes inside, which can convert the straight airflow output by the centrifugal fan (4) into a vertically downward spiral rotating airflow. A connecting ring (6) is fixedly installed on the outer surface of the guide vortex shell (5) for connecting and supporting other components. A drive motor (22) is installed on the upper surface of the connecting ring (6). A controller (10) and a transmission module (11) are fixedly connected to the side of the connecting ring (6). A fixing plate (18) is provided on the bottom surface of the connecting ring (6). The top surface of the fixing plate (18) is fixedly connected to the bottom surface of the connecting ring (6). A moving groove (19) is provided inside the fixing plate (18). A threaded rod (20) and a moving block (20) are installed in the moving groove (19). 21) A circular hole with the same diameter as the threaded rod (20) is provided on the connecting ring (6). The threaded rod (20) enters the drive motor (22) through the circular hole of the connecting ring (6). A threaded hole with the same diameter as the threaded rod is provided inside the moving block (21). The threaded rod (20) passes through the moving block (21), with its top end connected to the drive motor (22) and its bottom end connected to the bottom surface of the fixed plate (18). A moving plate (7) is fixedly connected to the side of the moving block (21). Bolt holes are provided at the four corners of the moving plate (7). A connecting plate (8) is provided on the side of the mounting plate (9). Bolt holes with the same diameter as the moving plate (7) are provided on the side of the connecting plate (8). After the bolt holes on the side of the connecting plate (8) and the connecting holes on the moving plate (7) are firmly connected with bolts, the mounting plate can be installed. (9) Fixed to the inner side of the movable plate (7) so that the mounting plate (9) can move up and down with the movable plate (7). The movable plate (7) is provided with a monitoring component, which includes a temperature sensor (12) and a humidity sensor (13). The temperature sensor (12) and the humidity sensor (13) are fixed to the outer side of the movable plate (7). The mounting plate (9) is provided with an adjustment component, which includes a heater (14), a finned heat exchanger (15), a desiccant (16), and a water tank (17). One end of the mounting plate (9) is provided with a finned heat exchanger (15) and a water tank (17), and the other end of the mounting plate (9) is provided with a heater (14) and a desiccant (16). The top surface of the water tank (17) is provided with a sealing component.The sealing assembly includes a sealing groove (23), a connecting port (24), a limiting rod (25), a sealing plate (26), a spring (27), and a circular electromagnet (28). The sealing plate (26) is made of magnetic material. When humidification adjustment is needed for a certain area, the control module activates the electromagnet, which attracts the connecting port (24) to connect the connecting port (24) to the internal space of the box (1), thus achieving the function of humidification. After the humidity adjustment is completed, the control module closes the electromagnet, and the sealing plate (26) is pushed above the connecting port (24) by the spring (27) to close the connecting port (24).

[0021] Furthermore, when the transformer body (3) is working, the centrifugal fan (4) and drive motor (22) are started. In the initial state, the monitoring component and the moving component move to the bottom of the fixed plate (18) and rise to detect at certain intervals. The monitoring component and the moving component move from the lowest point of the fixed plate (18) to the highest point of the fixed plate (18) or from the highest point of the fixed plate (18) to the lowest point of the fixed plate (18) for one measurement stroke. The drive motor (22) drives the threaded rod (20) to rotate, causing the moving block (21) to move up and down. The moving plate (7) located on the side of the moving block (21) and fixed to the moving block (21) moves up and down synchronously with the mounting plate (9). The movement enables the monitoring and adjustment components to monitor and adjust the temperature at different heights. When the temperature meets the requirements after completing a measurement stroke, the drive motor (22) stops, and the monitoring, adjustment and movement components are located at the end of the measurement stroke. The beginning of the next measurement stroke is the end of the measurement stroke. If the maximum temperature exceeds the temperature threshold after completing a measurement stroke, the main cause of the temperature exceeding the limit is determined by comprehensive judgment, and the drive motor (22) and the adjustment component are controlled to adjust the temperature at the main cause of the temperature exceeding the limit. After the adjustment is completed, the position of the monitoring and adjustment components is the end of the measurement stroke and the beginning of the next measurement stroke.

[0022] Furthermore, when the temperature measurement inside the enclosure (1) begins, due to the combined influence of the transformer body (3) and the centrifugal fan (4) inside the enclosure (1), the temperature sensor (12) will inevitably change during the process of moving from the beginning to the end to detect the temperature. When the temperature sensor (12) detects that the temperature at a certain height within the measurement stroke exceeds the temperature threshold, it is necessary to first determine the main influencing factors. Based on the temperature of the transformer body (3) and the centrifugal fan (4), a comprehensive analysis of the reasons for the temperature exceeding the limit is conducted so that the adjustment component can accurately adjust the temperature of the main abnormal parts. The fixed plate (18) is divided into three sections: the section near the lowest point is the section affected by the transformer body (3), the section near the highest point is the section affected by the centrifugal fan (4), and the middle section is the section affected by the combined influence of the transformer body (3) and the centrifugal fan (4). The division of the affected section is not only related to the temperature of the transformer body (3) and the temperature of the centrifugal fan (4), but also to the starting position of the monitoring component when it begins a certain measurement stroke. The temperature measured by the temperature sensor (12) is affected. If the monitoring component moves from the side with a higher temperature to the side with a lower temperature, the temperature of the temperature sensor (12) body is still high. After entering the low temperature zone, its reading slowly decreases from the high temperature. On the movement path, the measured values ​​of all low temperature zones include the error of "not being fully cooled", resulting in the temperature of the side with a lower temperature being higher. If it moves from the side with a lower temperature to the side with a higher temperature, the temperature of the temperature sensor (12) body is still low. After entering the high temperature zone, its reading slowly increases from the low temperature. On the movement path, the measured values ​​of all high temperature zones include the error of "not being fully heated", resulting in the temperature of the side with a higher temperature being lower. The specific length of the segment needs to be determined by calculation using the formula.

[0023] Furthermore, when the temperature sensor (12) detects that the temperature in a certain area exceeds the temperature threshold, the drive motor (22) will continue to run until the monitoring component and the adjustment component move to the end of a measurement stroke, and record the height at which the temperature deviates from the maximum value of the temperature threshold within that stroke.

[0024] Furthermore, if the height of the abnormal temperature area is within the influence section of the transformer body (3), it indicates that the main cause of the abnormal temperature at this height is the heating of the transformer body (3). If the end of the measurement stroke is at the highest point of the fixed plate (18), the control module controls the drive motor (22) to start, so that the monitoring component and the adjustment component move to the lowest point of the fixed plate (18) and then the drive motor (22) stops. The adjustment component is started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold and the adjustment component is turned off. If the end of the measurement stroke is at the lowest point of the fixed plate (18), the drive motor (22) stops and the adjustment component is started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold and the adjustment component is turned off.

[0025] Furthermore, if the height of the abnormal temperature area is within the combined influence zone of the transformer body (3) and the centrifugal fan (4), then the relative deviation between the maximum temperature and the temperature of the centrifugal fan (4) needs to be calculated. When the relative deviation is greater than zero, it indicates that the temperature at the abnormal temperature point exceeds the temperature of the centrifugal fan (4), indicating that the main reason for the temperature exceeding the limit is the heat generated by the transformer body (3). If the end of the measurement stroke is located at the highest point of the fixed plate (18), the control module controls the drive motor (22) to start, so that the monitoring component and the adjustment component move to the lowest point of the fixed plate (18) and then the drive motor (22) stops. The adjustment component is started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold, and the adjustment component is turned off. If the end of the measurement stroke is located at the lowest point of the fixed plate (18), the drive motor (22) stops, and the adjustment component is started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold, and the adjustment component is turned off. When the relative deviation is less than zero, it indicates that the main reason for the temperature exceeding the limit is the heating of the centrifugal fan (4) or the reduced heat dissipation effect. The temperature of the centrifugal fan (4) should be adjusted first. If the end of the measurement stroke is located at the highest point of the fixed plate (18), the drive motor (22) will stop and the adjustment component will be started to adjust the temperature of the centrifugal fan (4) until the temperature sensor (12) detects that the temperature is within the temperature threshold and the adjustment component will be closed. If the end of the measurement stroke is located at the lowest point of the fixed plate (18), the control module will control the drive motor (22) to start, so that the monitoring component and the adjustment component move to the highest point of the fixed plate (18) and then the drive motor (22) will stop. The adjustment component will be started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold and the adjustment component will be closed.

[0026] Furthermore, if the height of the abnormal temperature area is within the influence range of the centrifugal fan (4), and if the end of the measurement stroke is at the highest point of the fixed plate (18), the drive motor (22) stops, and the adjustment component is started to adjust the temperature of the centrifugal fan (4) until the temperature sensor (12) detects that the temperature is within the temperature threshold, and the adjustment component is turned off; if the end of the measurement stroke is at the lowest point of the fixed plate (18), the control module controls the drive motor (22) to start, so that the monitoring component and the adjustment component move to the highest point of the fixed plate (18) and then the drive motor (22) stops, and the adjustment component is started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold, and the adjustment component is turned off.

[0027] Reference Figures 1 to 2 As shown, the enclosure (1) includes a door (2), which is provided on all four sides of the enclosure (1). The transformer body (3) is installed in the center of the enclosure (1). The bottom surface of the transformer body (3) is fixed to the bottom surface of the enclosure (1). An adjustment mechanism is provided above the transformer body (3). The adjustment mechanism is installed on the inner side of the top surface of the enclosure (1) and is used to monitor the temperature and humidity inside the enclosure (1) and adjust the temperature and humidity.

[0028] Reference Figures 1 to 3 As shown, the centrifugal fan (4), the guide vortex shell (5), the connecting ring (6), and the moving plate (7) are all present. The centrifugal fan (4) is installed on the top surface of the box (1) above the transformer body (3). The guide vortex shell (5) is fixedly installed at the air outlet below the centrifugal fan (4). The guide vortex shell (5) is provided with spiral guide blades inside, which are used to generate a spiral rotating airflow from top to bottom inside the box (1) so that the air inside the box (1) is evenly distributed, creating a uniform initial environment for subsequent accurate monitoring and control, and making the monitoring results universal. The outer surface of the guide vortex shell (5) is fixedly installed with the connecting ring (6). The moving component, the monitoring component, and the adjustment component are provided below the connecting ring (6).

[0029] Reference Figures 1 to 5As shown, the moving assembly includes a fixed plate (18), a moving groove (19), a threaded rod (20), a moving block (21), and a drive motor (22). The fixed plate (18) is fixedly installed on the bottom surface of the connecting ring (6). A controller (10) and a transmission module (11) are provided on the outside of the connecting ring (6). The right side wall of the fixed plate (18) has a moving groove (19). The inner wall of the moving groove (19) is rotatably connected to the threaded rod (20). The outer surface of the threaded rod (20) is fitted with the moving block (21). The moving block (21) and the moving groove (19) are slidably engaged. The right side wall of the moving block (21) is fixedly connected to the left side wall of the moving plate (7). The drive motor (22) is fixedly installed on the top surface of the connecting ring (6). Its output shaft is connected to the top surface of the threaded rod (20) through a coupling. It is used to drive the threaded rod (20) to rotate forward and backward, thereby driving the moving block (21), the moving plate (7), and the mounting plate (9) to move up and down along the moving groove (19).

[0030] Reference Figures 1 to 6 As shown, the regulating assembly includes a heater (14), a finned heat exchanger (15), a dehumidifier (16), and a water tank (17). The heater (14) is fixedly installed on the left side wall of the mounting plate (9) and uses a resistance heating element to heat the low-temperature area. The finned heat exchanger (15) is fixedly installed on one side of the heater (14) and exchanges heat with the air inside the housing (1) through a circulating medium for temperature regulation. The dehumidifier (16) is fixedly installed on the right side wall of the mounting plate (9) and uses condensation dehumidification or adsorption dehumidification to reduce the humidity in high-humidity areas. The water tank (17) is fixedly installed on one side of the dehumidifier (16) to collect the condensate generated by the dehumidifier (16) and controls the evaporation and sealing of the water through a sealing assembly.

[0031] Reference Figures 1 to 7 As shown, the monitoring component includes a temperature sensor (12) and a humidity sensor (13). The temperature sensor (12) is fixedly installed on the right side wall of the movable plate (7) and is used to detect the temperature of any height area inside the box (1). The humidity sensor (13) is fixedly installed on one side of the temperature sensor (12) and is used to detect the humidity of any height area inside the box (1).

[0032] Reference Figures 1 to 8As shown, the top surface of the water tank (17) is provided with a sealing assembly, which includes a sealing groove (23), a connecting port (24), a limiting rod (25), a sealing plate (26), a spring (27), and a circular electromagnet (28). The sealing plate (26) is made of magnetic material, and the sealing plate (26) has a circular hole with the same diameter as the limiting rod (25) inside. One end of the limiting rod (25) is fixed to the side where the circular electromagnet (28) is located, and the other end is fixed to the side where the connecting port (24) is located. The limiting rod (25) passes through the spring (27) and the sealing plate (26) in sequence. One end of the spring (27) is fixed to the side where the circular electromagnet (28) is located, and the other end is fixed to the sealing plate (26). On the side of the sealing plate (26), the sealing plate (26) can move along the direction of the limiting rod (25) under the action of the spring (27) and the circular electromagnet (28). When the humidity does not need to be adjusted, the spring (27) is subjected to the initial pressure to press the sealing plate (26) tightly, so that the connection port (24) is isolated from the outside. When it is necessary to adjust the humidity of a certain area, the control module starts the electromagnet, and the electromagnet will attract the sealing plate (26) to connect the connection port (24) with the internal space of the box (1) to play the role of humidification. When the humidity is adjusted, the control module turns off the electromagnet, and the sealing plate (26) will be pushed by the spring (27) to the top of the connection port (24) to close the connection port (24).

[0033] Example 2, as Figures 1 to 9 As shown, please refer to the following carefully. Figure 7 As shown, the control module includes: a temperature detection unit, which collects the temperature within the measurement stroke detected by the temperature sensor (12); and a data processing unit, in which the temperature detection unit of the housing (1) transmits the temperature corresponding to each height within the measurement stroke detected by the temperature sensor (12) to the data processing unit, and the data processing unit plots the TH curve based on the temperature corresponding to each height within the measurement stroke and calculates the temperature limit of the influence boundary of the transformer body (3). The temperature limit of the boundary affected by centrifugal fans (4) The segment height is determined based on the TH curve and the starting position of the measurement stroke. , This divides the fixed plate (18) into the transformer body (3) affected section, the centrifugal fan (4) affected section, and the transformer body (3) and centrifugal fan (4) jointly affected section, thereby determining the maximum temperature. The control module determines the height of the device based on which segment of the fixed plate (18) it is located in, according to the maximum temperature. The influence of different sections and temperatures on the fixed plate (18) The relative deviation of the temperature q of the centrifugal fan (4) Based on a comprehensive assessment of the main causes of the abnormal temperature, determine whether to activate the drive motor (22) to move the adjustment component to adjust the temperature or humidity.

[0034] Furthermore, when the temperature measurement inside the enclosure (1) begins, after the temperature sensor (12) completes the measurement within the measurement stroke, a temperature change curve from the transformer body (3) to the centrifugal fan (4) can be plotted. The lowest point measured by the temperature sensor (12) is the temperature t at the transformer body (3), and the highest point is the temperature q at the centrifugal fan (4). During normal operation, the temperature change presents a standard U-shaped curve that first decreases and then increases. The slope of the curve is greatest at the lowest or highest point of the fixed plate (18), which is the maximum temperature change rate. The maximum value is at the lowest or highest point of the fixed rod. During the (i-1)th measurement cycle, the temperature change rate at the transformer body (3) terminal is... When the i-th measurement cycle is performed, the temperature change rate at the transformer body (3) terminal is _____. ,like Compared to An increase indicates a decrease in heat generation at the transformer body (3), and the affected section of the transformer body (3) should be shortened; if Compared to A decrease indicates an increase in heat generation at the transformer body (3), and the affected section of the transformer body (3) should be extended. The affected section of the centrifugal fan (4) should be calculated in the same way as the affected section of the transformer body (3).

[0035] Furthermore, if the monitoring component starts at the lowest point of the fixed plate (18) and moves upward to the highest point of the fixed plate (18), the temperature at the transformer body (3) will affect the boundary temperature of the centrifugal fan (4) influence section and the combined influence section of the transformer body (3) and the centrifugal fan (4). If the temperature at the transformer body (3) is higher than the temperature at the centrifugal fan (4), the measured temperature of the upper centrifugal fan (4) influence section and the combined influence section of the transformer body (3) and the centrifugal fan (4) will be too high, causing the centrifugal fan (4) influence section to extend downward. At this time, the temperature deviation value needs to be subtracted. If the temperature at the transformer body (3) is lower than the temperature at the centrifugal fan (4), the measured temperature of the upper centrifugal fan (4) influence section and the combined influence section of the transformer body (3) and the centrifugal fan (4) will be too low, causing the centrifugal fan (4) influence section to shorten upward. At this time, the temperature deviation value needs to be added. If the monitoring component starts at the highest point of the fixed plate (18) and moves down to the lowest point of the fixed plate (18), the temperature at the centrifugal fan (4) will affect the boundary temperature of the transformer body (3) and the combined influence section of the transformer body (3) and the centrifugal fan (4). If the temperature at the centrifugal fan (4) is higher than the temperature at the transformer body (3), the measured temperature of the lower centrifugal fan (4) and the combined influence section of the transformer body (3) and the centrifugal fan (4) will be too high, causing the influence section of the transformer body (3) to extend upward. At this time, the value of the temperature being too high needs to be subtracted. If the temperature at the centrifugal fan (4) is lower than the temperature at the transformer body (3), the measured temperature of the lower transformer body (3) and the combined influence section of the transformer body (3) and the centrifugal fan (4) will be too low, causing the influence section of the centrifugal fan (4) to shorten downward. At this time, the value of the temperature being too low needs to be added.

[0036] During the i-th measurement stroke, based on the sensor thermal inertia model formula and the Nusselt number correlation, the calculation formula for the convective heat transfer boundary limit of the moving temperature sensor (12) of the transformer body (3) and centrifugal fan (4) for thermal inertia compensation can be: ; This indicates the temperature limit of the influence boundary of the transformer body (3); This represents the rate of temperature change at the lowest point of the fixed plate (18) during the i-th measurement stroke; This represents the rate of temperature change at the lowest point of the fixed plate (18) during the (i-1)th measurement stroke; This indicates the temperature of the transformer body (3) during the i-th measurement stroke; This indicates the temperature of the transformer body (3) during the (i-1)th measurement stroke; The boundary ratio coefficient of the transformer body (3) is determined according to the specific specifications and model of the transformer body (3). For the heat dissipation performance evaluation of the transformer body (3), it is generally taken as 0.6-0.8. This indicates the temperature limit of the boundary affected by the centrifugal fan (4); This represents the rate of temperature change at the highest point of the fixed plate (18) during the i-th measurement stroke; This represents the rate of temperature change at the highest point of the fixed plate (18) during the (i-1)th measurement stroke; This indicates the temperature of the centrifugal fan (4) during the i-th measurement stroke; This indicates the temperature of the centrifugal fan (4) during the (i-1)th measurement stroke; The boundary ratio coefficient of the centrifugal fan (4) is determined according to the specific specifications and model of the centrifugal fan (4). For the evaluation of the heat dissipation efficiency of the centrifugal fan (4), it is generally taken as 0.8-0.9. n represents the influence coefficient of the natural convection plume of the heat source, which is generally taken as 0.8; This indicates the moving speed of the temperature sensor (12) along the fixed plate (18); This indicates the thermal time constant of the temperature sensor (12); This indicates the rate of temperature change at the temperature limit of the influence boundary of the transformer body (3); This represents the rate of temperature change at the temperature limit of the influence boundary of the centrifugal fan (4).

[0037] Determined based on the TH curve Corresponding height as well as Corresponding height The fixed plate (18) is divided into the transformer body (3) influence section, the transformer body (3) and centrifugal fan (4) combined influence section, and the centrifugal fan (4) influence section. When the temperature sensor (12) detects that the temperature of a certain area exceeds the temperature threshold within the measurement stroke, the height at which the temperature deviates from the maximum value of the temperature threshold within the stroke is recorded. .

[0038] Furthermore, the height at which the temperature deviates from the maximum temperature threshold. When the temperature is within the influence zone of the transformer body (3), it indicates that the main reason for the abnormal temperature at this height is the heat generated by the transformer body (3). If the end of the measurement stroke is at the highest point of the fixed plate (18), the control module controls the drive motor (22) to start, so that the monitoring component and the adjustment component move to the lowest point of the fixed plate (18) and then the drive motor (22) stops. The adjustment component is started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold and the adjustment component is turned off. If the end of the measurement stroke is at the lowest point of the fixed plate (18), the drive motor (22) stops and the adjustment component is started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold and the adjustment component is turned off.

[0039] Furthermore, the height at which the temperature deviates from the maximum temperature threshold. When the transformer body (3) and centrifugal fan (4) are in the combined influence zone, it is necessary to calculate the relative deviation between the maximum temperature and the temperature of the centrifugal fan (4). When relative deviation When the value is greater than 0, it indicates that the main reason for the temperature exceeding the limit is the overheating of the transformer body (3). If the end of the measurement stroke is located at the highest point of the fixed plate (18), the control module controls the drive motor (22) to start, so that the monitoring component and the adjustment component move to the lowest point of the fixed plate (18) and then the drive motor (22) stops. The adjustment component is started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold, and the adjustment component is turned off. If the end of the measurement stroke is located at the lowest point of the fixed plate (18), the drive motor (22) stops, and the adjustment component is started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold. The adjustment component is turned off when the relative deviation is within the threshold. When <0, it indicates that the main reason for the temperature exceeding the limit is the heat generated by the centrifugal fan (4). If the end of the measurement stroke is located at the highest point of the fixed plate (18), the drive motor (22) will stop and the adjustment component will be started to adjust the temperature of the centrifugal fan (4) until the temperature sensor (12) detects that the temperature is within the temperature threshold and the adjustment component will be turned off. If the end of the measurement stroke is located at the lowest point of the fixed plate (18), the control module will control the drive motor (22) to start, so that the monitoring component and the adjustment component move to the highest point of the fixed plate (18) and then the drive motor (22) will stop and the adjustment component will be started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold and the adjustment component will be turned off.

[0040] Furthermore, the temperature deviates from the maximum value of the temperature threshold. altitude When the centrifugal fan (4) is in the affected section, it indicates that the main reason for the abnormal temperature at this height is the heat generated by the centrifugal fan (4). If the end of the measurement stroke is at the highest point of the fixed plate (18), the drive motor (22) stops and the adjustment component is started to adjust the temperature of the centrifugal fan (4) until the temperature sensor (12) detects that the temperature is within the temperature threshold, and the adjustment component is turned off. If the end of the measurement stroke is at the lowest point of the fixed plate (18), the control module controls the drive motor (22) to start, so that the monitoring component and the adjustment component move to the highest point of the fixed plate (18) and then the drive motor (22) stops. The adjustment component is started to adjust the temperature of the transformer body (3) until the temperature sensor (12) detects that the temperature is within the temperature threshold, and the adjustment component is turned off.

[0041] Furthermore, in a specific implementation of the present invention, the temperature threshold T is set to 35±5℃, the length of the fixed rod is 200cm, and the driving motor (22) drives the moving component to move at a certain speed. =1cm / s, thermal time constant of temperature sensor (12) =2s, Transformer body (3) boundary ratio coefficient Take 0.8, centrifugal fan (4) boundary proportion coefficient Take 0.8, and when starting the operation, set the measurement interval to one hour, that is, one measurement cycle is performed every hour; The i-th measurement stroke begins, and the drive motor (22) is started to drive the monitoring component and the adjustment component to move upward from the lowest point of the fixed plate (18). After the monitoring component and the adjustment component move to the highest point of the fixed plate (18), the drive motor (22) stops, and the temperature of the transformer body (3) is... =42℃, the temperature of centrifugal fan (4) is =38℃, calculate the rate of temperature change based on the temperature curve. =0.5℃ / cm =0.18℃ / cm =0.34℃ / cm =0.15℃ / cm, given the measurement range within the (i-1)th measurement stroke. =41℃ =36℃ =0.46℃ / cm =0.19℃ / cm, calculated =35.9℃ =30.1℃, the temperature was obtained through the temperature curve. =35.9℃ corresponds to a height of =150cm, =30.1℃ corresponds to a height of =172cm, the fixing plate (18) is divided into three sections. The section affected by the transformer body (3) is below 150cm, the section affected by the centrifugal fan (4) is above 172cm, and the section from 150cm to 172cm is the combined influence section of the transformer body (3) and the centrifugal fan (4). The temperature sensor (12) is at a height The maximum temperature during this measurement range was measured at a distance of 50cm. =42℃, indicating that there is a temperature deviation, and the maximum temperature deviation is located in the influence section of the transformer body (3). According to the calculation results, the control system determines that the drive motor (22) needs to be started to drive the threaded rod (20) to rotate, and drive the monitoring component and the adjustment component to the lowest point of the fixed plate (18). The drive motor (22) stops, and the finned heat exchanger (15) is started to cool down. When the temperature sensor (12) detects that the temperature has dropped to 35±5℃, the adjustment component stops. One hour later, the drive motor (22) will start to perform the i+1 measurement stroke. The i+1th measurement stroke begins, with the monitoring and adjustment components positioned at the lowest point of the fixed plate (18), and the transformer body (3) temperature is... =45℃, the temperature of centrifugal fan (4) is =43℃, calculate the rate of temperature change based on the temperature curve. =0.53℃ / cm =0.16℃ / cm =0.28℃ / cm =0.14℃ / cm, calculate =38.5℃ =34.3℃, the temperature was obtained through the temperature curve. =38.5℃ corresponds to the height of =147cm, =34.3℃ corresponds to a height of =159cm, the fixing plate (18) is divided into three sections. The section affected by the transformer body (3) is below 147cm, the section affected by the centrifugal fan (4) is above 159cm, and the section from 140cm to 159cm is the combined influence section of the transformer body (3) and the centrifugal fan (4). The temperature sensor (12) is at a height of The maximum temperature during this measurement range was measured at a distance of 185cm. =40.3℃, indicating that there is a temperature deviation, and the maximum temperature deviation is located in the influence section of the centrifugal fan (4). The control system determines to start the drive motor (22) according to the calculation results, so that the monitoring component and the adjustment component move to the highest point of the fixed plate (18) and then the drive motor (22) stops. The finned heat exchanger (15) is started to cool down. When the temperature sensor (12) detects that the temperature drops to 35±5℃, the adjustment component stops. One hour later, the drive motor (22) will start to perform the i+2 measurement stroke. The i+2 measurement stroke begins, with the monitoring and adjustment components positioned at the highest point of the fixed plate (18), and the transformer body (3) temperature is... =46℃, the temperature of centrifugal fan (4) is =38℃, calculate the rate of temperature change based on the temperature curve. =0.59℃ / cm =0.18℃ / cm =0.39℃ / cm =0.11℃ / cm, calculated =41.6℃ =30.5℃, the temperature was obtained through the temperature curve. =41.6℃ corresponds to a height of =125cm, =30.5℃ corresponds to the height of =171cm, the fixing plate (18) is divided into three sections. The section affected by the transformer body (3) is below 125cm, the section affected by the centrifugal fan (4) is above 171cm, and the section from 125cm to 171cm is the combined influence section of the transformer body (3) and the centrifugal fan (4). The temperature sensor (12) is at a height The maximum temperature during this measurement range was measured at a distance of 160cm. =41.5℃, indicating a temperature deviation, and the maximum temperature deviation is located in the combined influence section of the transformer body (3) and the centrifugal fan (4). Calculate the relative deviation between the maximum temperature and the temperature of the centrifugal fan (4). >0 indicates altitude =160cm The temperature exceeding the limit is mainly caused by the heat generated by the transformer body (3). The control system determines that the finned heat exchanger (15) needs to be started to cool down according to the calculation results. When the temperature sensor (12) detects that the temperature drops to 35±5℃, the adjustment component stops. One hour later, the drive motor (22) will start to perform the i+3 measurement stroke. The measurement is performed in this cycle and the main heat source of the temperature exceeding the limit is adjusted to ensure that the temperature of the transformer body (3) always meets the requirements for safe operation during operation.

[0042] The structural layout of the temperature regulation component and the implementation process of the temperature regulation described above are also applicable to the regulation of other environmental parameters inside the chamber (1). For example, for humidity regulation: the regulation component also includes a dehumidifier (16) and a water tank (17). When the movement detection module detects that the humidity in a certain area is too high, the control module drives the regulation component to move to the main influencing factor that causes the humidity in that area to be too high, and starts the dehumidifier (16) to dehumidify; when the humidity is detected to be too low, the control module drives the regulation component to move to the main influencing factor that causes the humidity in that area to be too low, and turns on the water tank (17) to humidify. Thus, the precise positioning and regulation of humidity in different areas inside the chamber (1) is achieved.

[0043] It should be noted that, for the sake of brevity, the foregoing method embodiments are described as a series of actions, but this does not mean that the application limits the order of the steps. Based on the ideas of this application, some steps can be executed in different orders or in parallel without affecting the functional implementation. Secondly, those skilled in the art should also understand that the specific embodiments described in the specification are preferred embodiments of the technical solutions of this application, and not limitations on the scope of protection of this application. All equivalent improvements or substitutions made within the spirit and principles of this application should be covered within the scope of protection of this application.

[0044] In conclusion, 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, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A temperature and humidity control device for a box-type transformer, comprising a box housing, wherein a transformer body is installed inside the box housing, characterized in that: Also includes: The control mechanism includes a centrifugal fan, a fixed connecting ring, a fixed plate fixed below the connecting ring, a movable plate slidably mounted on the fixed plate, a mounting plate fixed to one side of the movable plate, and a drive motor for driving the movable plate to reciprocate. The centrifugal fan is fixedly mounted inside the housing. A detection module, which is fixedly mounted on the movable plate, is used to detect at least one environmental parameter at its location; An adjustment component, which is fixedly mounted on the mounting plate, is used to adjust the environmental parameters at its location; The control module is electrically connected to the detection module, the drive motor, and the adjustment component, respectively. The control module is configured to divide the fixed plate into a transformer body influence section, a centrifugal fan influence section, and a combined influence section of the transformer body and centrifugal fan based on the changes in the environmental parameters and the temperature at the beginning and end of the movement direction of the detection module, using the sensor thermal inertia model formula combined with the Nusselt number correlation. According to the influence section where the abnormal environmental parameter area is located, the control module controls the drive motor to drive the moving plate to the target area that causes the abnormal environmental parameter, and activates the corresponding adjustment function in the adjustment component.

2. The temperature and humidity control device inside a box-type transformer according to claim 1, characterized in that: The changes in the environmental parameters include the changes in temperature and the rate of temperature change at the highest and lowest points of the fixed plate.

3. The temperature and humidity control device inside a box-type transformer according to claim 1, characterized in that: The control mechanism also includes a guide vortex shell, a connecting plate, and a moving component. The centrifugal fan is fixedly installed on the top surface inside the housing, the guide vortex shell is fixedly installed on the bottom surface of the centrifugal fan outlet, and the connecting ring is fixedly installed on the outer surface of the guide vortex shell.

4. The temperature and humidity control device inside a box-type transformer according to claim 3, characterized in that: The connecting ring is provided with a threaded hole, a drive motor is fixedly installed above the threaded hole, and a fixing plate is fixedly installed below the threaded hole.

5. The temperature and humidity control device inside a box-type transformer according to claim 3, characterized in that: The movable component includes a fixed plate, a movable slot, a threaded rod, a movable block, and a drive motor. The fixed plate has a movable slot inside and its bottom is closed. One end of the threaded rod is located at the drive end of the drive motor, and the other end is fixed to the bottom of the fixed plate. The movable block has a threaded hole of the same size as the threaded rod inside. The threaded rod passes through the movable block. When the drive motor starts and drives the threaded rod to rotate, the movable block moves up and down with the rotation of the threaded rod. A movable plate is fixed to the right side of the movable block. A connecting plate is provided on the side of the mounting plate. The connecting plate has bolt holes on its side that are the same as those on the movable plate. After the bolt holes on the side of the connecting plate and the connecting holes on the movable plate are firmly connected with bolts, the mounting plate can be fixed to the inner side of the movable plate, so that the mounting plate can move up and down with the movable plate.

6. The internal temperature and humidity control device for a box-type transformer according to claim 1, characterized in that: The regulating assembly includes a heater, a finned heat exchanger, a dehumidifier, and a water tank. The heater is fixedly installed at the right end of the left side of the mounting plate and uses a resistance heating element. The finned heat exchanger is fixedly installed at the left end of the left side of the mounting plate and exchanges heat with the air inside the chamber through a circulating medium. The dehumidifier is fixedly installed at the left end of the right side of the mounting plate and uses adsorption dehumidification. The water tank is fixedly installed at the right end of the right side of the mounting plate, and a sealing assembly is provided on the top of the water tank.

7. The temperature and humidity control device inside a box-type transformer according to claim 6, characterized in that: The sealing assembly includes a limiting rod, a sealing groove, a connecting port, a sealing plate, a spring, and several circular electromagnets. The sealing groove is located on the top of the water tank, the connecting port is located on the bottom right side of the sealing groove, and several circular electromagnets are located on the left side of the sealing groove. One end of the limiting rod is fixed to the left side of the sealing groove, and the other end is fixed to the right side of the sealing groove. The limiting rod passes through the spring and the sealing plate in sequence. One end of the spring is fixed to the left side of the sealing groove, and the other end is fixed to the side of the sealing plate. The sealing plate is made of magnetic material, which allows the sealing plate to move along the limiting rod under the action of the circular electromagnets and the spring.

8. The temperature and humidity control device inside a box-type transformer according to claim 1, characterized in that: The control module includes: The signal acquisition unit has its input terminal electrically connected to the detection module and is used to receive environmental parameter data at the location of the detection module. The processing and analysis unit is connected to the signal acquisition unit and is used to analyze the moving direction of the detection module and the detected environmental parameters, divide the transformer body influence section, the centrifugal fan influence section and the combined influence section of the transformer body and the centrifugal fan, determine the cause of the abnormality based on the influence section where the maximum deviation value is located, and generate control commands accordingly. The drive execution unit has its input end connected to the processing and analysis unit, and its output end electrically connected to the drive motor and the adjustment component, respectively, and is used to drive the start and stop of the drive motor and the switch of the adjustment component according to the control command.

9. The internal temperature and humidity control device for a box-type transformer according to claim 8, characterized in that: The environmental parameters include temperature and humidity.

10. The internal temperature and humidity control device for a box-type transformer according to claim 8, characterized in that: Each of the four side walls of the enclosure is equipped with a door mounting frame, and a door can be installed on each mounting frame. The number of doors is one or more, and the doors are installed on the mounting frames of any one or more of the four side walls.

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