Internal and external intelligent isolation box-type substation and its use method

Abstract

The present invention relates to the technical field of box-type substations, and in particular to an internal and external intelligently isolated box-type substation and a method for using the box-type substation, comprising a box body, a base, at least one set of box doors, an air curtain assembly, an air guide assembly, a drive assembly and a controller, wherein temperature and humidity sensors are arranged inside and outside the box body, the air curtain assembly comprises a first air curtain and a second air curtain, and the air guide assembly comprises a first air guide box and a second air guide box; the drive assembly comprises a first drive member and a second drive member connected to the first air guide box, and the controller is used to receive signals from the temperature and humidity sensors and control the actions of the first drive member and the second drive member; through the setting of the first air curtain and the second air curtain, double-layer airflow isolation is formed, and the states of the first air guide box and the second air guide box are intelligently adjusted by the controller to achieve effective flow of internal air and rational use of external air, effectively reduce the aging rate of insulating materials, and extend the service life of equipment in the substation.

Description

Technical Field

[0001] The present invention relates to the technical field of box-type substations, and in particular to an internal and external intelligently isolated box-type substation and a method for using the same. Background Art

[0002] Box-type substation, also known as prefabricated substation or prefabricated substation, is a factory-prefabricated indoor and outdoor compact distribution equipment that integrates high-voltage switchgear, distribution transformers and low-voltage distribution devices according to a certain wiring scheme. It organically combines the functions of transformer step-down and low-voltage distribution and is installed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, anti-theft, heat-insulated, fully enclosed, movable steel structure box. It is particularly suitable for urban network construction and transformation. It is a new type of substation that has emerged after the civil substation, replacing the original civil distribution room and distribution station, and becoming a new type of complete set of transformation and distribution equipment.

[0003] However, during long-term operation, the insulation performance of the internal insulation material of the box-type substation may deteriorate due to the influence of humidity, temperature changes or aging, increasing the risk of short circuit and equipment failure. At the same time, if the interior of the box-type substation is in a high temperature and high humidity environment for a long time, it will seriously affect the normal operation and service life of the equipment. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an internal and external intelligent isolated box-type substation and a method of using the same, so as to effectively solve the problems in the background technology.

[0005] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is: an internal and external intelligent isolation box-type substation, comprising: a box body, a base arranged below the box body, and at least one set of box doors arranged on the side wall of the box body, and temperature and humidity sensors are arranged inside and outside the box body, and further comprising:

[0006] An air curtain assembly is arranged on the top of the door, comprising a first air curtain and a second air curtain arranged side by side along the thickness direction of the door, the second air curtain is arranged on the inner side, the first air curtain is arranged on the outer side, and the outlet of the first air curtain is connected to the hollow cavity of the door;

[0007] An air guide assembly is provided in the base and below the box door, comprising a first air guide box and a second air guide box provided side by side with the first air guide box along the width direction of the box door;

[0008] a drive assembly comprising a first drive member connected to the first air guide box and a second drive member connected to the second air guide box, the first drive member being used to drive the first air guide box to move to form a first transition cavity with the side wall of the base, and the second drive member being used to drive the second air guide box to move to form a second transition cavity with the side wall of the base;

[0009] a controller, configured to receive signals from the temperature and humidity sensors and control the actions of the first and second driving members;

[0010] The first air guide box includes a first cavity located below the first air curtain and a second cavity located below the second air curtain, and a third cavity connected to the second cavity is provided directly below the first cavity. The second air guide box is provided with a through slot on a side close to the box door, and a first channel and a second channel are provided on a crossbeam between the first air guide box and the second air guide box.

[0011] The airflow of the first air curtain is sprayed to the first cavity, flows through the first channel and the second transition cavity into the outside, and the airflow of the second air curtain passes through the second cavity and enters the box body, thereby forming a first circulation path;

[0012] The airflow of the second air curtain is sprayed into the first cavity, enters the second air guide box through the second channel, and the airflow of the first air curtain enters the first transition cavity, and flows through the second cavity through the third cavity into the box body to form a second circulation path.

[0013] Furthermore, a flexible guide plate is provided on the outer surface of the second air guide box at one end close to the first air guide box, and the flexible guide plate is arranged at an angle.

[0014] Furthermore, the partition between the first cavity and the second cavity is arranged to be tilted downward toward the second air guide box.

[0015] Furthermore, a plurality of grille holes are provided on both the inner and outer side walls of the door, and are arranged toward the outdoor side;

[0016] A plurality of the grille holes are arranged to be tilted downward.

[0017] Furthermore, the base comprises a frame, a bottom plate and a top plate;

[0018] The bottom plate and the top plate are arranged in parallel on the frame, and the top plate is provided with an air curtain air inlet at a position corresponding to the air curtain assembly, and is provided with an indoor air outlet at a position corresponding to the second cavity;

[0019] The width of the air curtain inlet is greater than the width of the first cavity.

[0020] Furthermore, filters are provided on the air curtain air inlet and the indoor air outlet.

[0021] Furthermore, an outdoor air outlet is provided on the side wall of the base at a position corresponding to the through slot of the second air guide box;

[0022] The outer side of the outdoor air outlet is in a grille structure.

[0023] Furthermore, the inlet of the third cavity is arranged on the side of the first air guide box away from one end of the second air guide box, and passes through the second cavity.

[0024] Furthermore, the first channel and the second channel are arranged on the same horizontal line along the driving direction of the driving assembly.

[0025] The present invention also provides a method for using an internal and external intelligent isolation box-type substation, comprising the following steps:

[0026] When the substation is operating normally, the temperature and humidity sensors located inside and outside the box body monitor the indoor and outdoor temperature and humidity in real time and transmit them to the controller;

[0027] When the temperature and humidity in the substation need to be adjusted, if the temperature and humidity in the substation are less than or equal to the outdoor environment, the first driving member is started, and the first driving member drives the first air guide box to move toward the box door. At this time, the second air guide box and the side wall of the base form a second transition cavity. The first air curtain passes through the box door, the first cavity, and the second transition cavity in sequence and is discharged outdoors, while the airflow of the second air curtain passes through the second cavity and enters the room to adjust the indoor temperature and humidity, thereby realizing independent circulation of indoor and outdoor circulation;

[0028] If the temperature and humidity inside the substation are higher than the outdoor environment, the second driving member is started, and the second driving member drives the second air guide box to move toward the box door. At this time, the first air guide box and the side wall of the base form a first transition cavity. The airflow of the first air curtain passes through the box door, the first transition cavity, and the third cavity in turn into the second cavity, and is finally discharged into the room. The airflow of the second air curtain passes through the first cavity into the second air guide box and is discharged to the outside through the through groove, so as to realize indoor and outdoor circulation.

[0029] The beneficial effects of the present invention are as follows: the present invention forms a double-layer airflow isolation through the arrangement of the first air curtain and the second air curtain, effectively blocking external hot air or moisture from entering the interior of the box, and intelligently adjusts the states of the first air guide box and the second air guide box through the controller, thereby achieving effective flow of internal air and rational use of external air, effectively reducing the aging rate of insulating materials, and extending the service life of equipment in the substation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a three-dimensional structural view of the internal and external intelligent isolation box-type substation in the present invention;

[0032] Figure 2 This is a front view of the internal and external intelligent isolation box-type substation in the present invention;

[0033] Figure 3 Schematic diagram of the structure of the base in the present invention;

[0034] Figure 4 Schematic diagram of the positions of the air curtain air inlet and indoor air outlet on the base of the present invention;

[0035] Figure 5 This is a schematic diagram of the internal structure of the base in the state of independent indoor and outdoor circulation in the present invention;

[0036] Figure 6 This is a schematic diagram of the internal structure of the base in the indoor and outdoor circulation state of the present invention;

[0037] Figure 7 Schematic cross-section of the door of the present invention;

[0038] Figure 8 Schematic diagram of the positional relationship between the door and the air guide assembly in the present invention;

[0039] Figure 9 Schematic diagram of the exploded structure of the first air guide box, the second air guide box and the crossbeam in the present invention;

[0040] Figure 10 Schematic diagram of the positions of the first air guide box and the second air guide box in the present invention in which indoor and outdoor independent circulation is performed;

[0041] Figure 11 Schematic diagram of the positions of the first air guide box and the second air guide box in the indoor and outdoor circulation in the present invention;

[0042] Figure 12 Schematic diagram of the flow of airflow in the indoor and outdoor circulation flow state in the present invention;

[0043] Figure 13 This is a schematic diagram of the air guide of the first cavity in the present invention;

[0044] Figure 14 Schematic diagram of the air guide of the third cavity in the present invention.

[0045] Figure numerals: 1. Box body; 2. Base; 21. Frame; 22. Bottom plate; 23. Top plate; 231. Air curtain inlet; 232. Indoor air outlet; 233. Outdoor air outlet; 24. Filter; 3. Box door; 31. Grille hole; 4. Air curtain assembly; 41. First air curtain; 42. Second air curtain; 5. Air guide assembly; 51. First air guide box; 51a. First transition cavity; 511. First cavity; 512. Second cavity; 513. Third cavity; 514. Partition; 52. Second air guide box; 52a. Second transition cavity; 521. Through groove; 522. Flexible guide plate; 6. Crossbeam; 61. First channel; 62. Second channel. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0047] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] like Figures 1 to 14The internal and external intelligent isolation box-type substation shown in the figure includes a box body 1, a base 2 arranged below the box body 1, and at least one set of box doors 3 arranged on the side walls of the box body 1, and temperature and humidity sensors are arranged inside and outside the box body 1. On this basis, the box-type substation also includes: an air curtain assembly 4, an air guide assembly 5, a drive assembly and a controller; the air curtain assembly 4 is arranged on the top of the box door 3, including a first air curtain 41 and a second air curtain 42 arranged side by side along the thickness direction of the box door 3, the second air curtain 42 is arranged on the inside, and the first air curtain 41 is arranged on the outside, and the outlet of the first air curtain 41 is connected to the hollow cavity of the box door 3; the air guide assembly The component 5 is arranged in the base 2 and below the door 3, and includes a first air guide box 51 and a second air guide box 52 arranged side by side with the first air guide box 51 along the width direction of the door 3; the driving assembly includes a first driving component connected to the first air guide box 51 and a second driving component connected to the second air guide box 52. The first driving component is used to drive the first air guide box 51 to move to form a first transition cavity 51a with the side wall of the base 2, and the second driving component is used to drive the second air guide box 52 to move to form a second transition cavity 52a with the side wall of the base 2; the controller is used to receive signals from the temperature and humidity sensor and control the operation of the first and second driving components;

[0050] The first air guide box 51 includes a first cavity 511 located below the first air curtain 41 and a second cavity 512 located below the second air curtain 42. A third cavity 513 connected to the second cavity 512 is provided directly below the first cavity 511. The second air guide box 52 has a through slot 521 on a side close to the door 3. A first channel 61 and a second channel 62 are provided on the crossbeam 6 between the first and second air guide boxes 51 and 52.

[0051] The airflow of the first air curtain 41 is sprayed into the first cavity 511, flows through the first channel 61, and flows through the second transition cavity 52a to be discharged outside. The airflow of the second air curtain 42 flows through the second cavity 512, flows through the box body 1 and enters the room, thereby forming a first circulation path.

[0052] The airflow of the second air curtain 42 is sprayed into the first cavity 511, enters the second air guide box 52 through the second channel 62 and is discharged outdoors, while the airflow of the first air curtain 41 enters the first transition cavity 51a, flows through the second cavity 512 through the third cavity 513, enters the box body 1, and is discharged into the room to form a second circulation path.

[0053] The controller (not shown in the figure) in the present invention controls the action of the first driving member and the second driving member after receiving signals from indoor and outdoor temperature sensors and humidity sensors, so that the first air guide box 51 and the second air guide box 52 are always staggered, so as to realize the switching of the first circulation path and the second circulation path. The specific implementation process is: when the temperature and humidity need to be adjusted in the substation, if the temperature and humidity in the substation are less than or equal to the outdoor environment, the first circulation path is selected to realize independent circulation of indoor circulation and outdoor circulation, and the temperature and humidity are adjusted by indoor circulation without directly introducing external air, which helps to maintain the stability of the internal environment of the substation; if the temperature and humidity in the substation are higher than the outdoor environment, the second circulation path is selected to realize indoor and outdoor circulation flow, and the external air is introduced and the indoor air is discharged at the same time by combining indoor and outdoor circulation to achieve the purpose of cooling or dehumidification. The present invention forms a double-layer airflow isolation by setting up the first air curtain 41 and the second air curtain 42, effectively blocking external hot air or moisture from entering the interior of the box, and intelligently adjusts the status of the first air guide box 51 and the second air guide box 52 through the controller to achieve effective flow of internal air and rational use of external air, effectively reducing the aging rate of insulation materials and extending the service life of equipment in the substation.

[0054] In the present invention, the first and second drive members are driven by either an air cylinder or an oil cylinder, but are not limited to these two drive structures. Furthermore, in the present invention, the first and second air curtains 41 and 42 utilize at least one fan (not shown) for air supply to ensure that the formed air curtains have sufficient barrier properties. Specifically, when the temperature and humidity within the substation are normal, the fan is inoperative. When the temperature and humidity need to be adjusted, the fan begins operating. During air supply, the fan speed can be appropriately adjusted to increase the airflow rate, forming a stronger airflow barrier and accelerating the air circulation speed, thereby more quickly restoring the substation to a normal operating temperature and humidity range. Separate fans can also be provided for the first and second air curtains 41 and 42. When separate indoor and outdoor circulation is performed, the airflow rate of the second air curtain 42 can be increased, thereby accelerating the internal circulation flow rate and achieving temperature and humidity regulation within the substation. Furthermore, when indoor and outdoor circulation is performed, the airflow rate of the second air curtain 42 is increased, creating a negative pressure within the substation, indirectly accelerating the airflow speed of the second air curtain 42 and, consequently, the flow rate of the entire air circulation.

[0055] In the present invention, when the airflow of the first air curtain 41 enters the first cavity 511 through the cavity of the box door 3, and enters the second transition cavity 52a through the first channel 61, and since the second transition cavity 52a is in a connected state with the second air guide box 52, a large amount of airflow entering the second transition cavity 52a will converge into the second air guide box 52, while a small amount of airflow will flow to the outside. The airflow converged in the second air guide box 52 forms a turbulent flow phenomenon, which causes the flow speed of the first air curtain 41 in the base 2 to slow down, seriously affecting the partition effect of the first air curtain 41. Therefore, preferably, as Figure 9-11 As shown, a flexible guide plate 522 is provided on the outer surface of the second air guide box 52 near one end of the first air guide box 51. The flexible guide plate 522 is tilted to facilitate directing the gas flowing out of the first cavity 511 directly and quickly to the air outlet, preventing the gas from flowing back into the second air guide box 52, and effectively accelerating the outflow speed of the gas. When it is necessary to open the second circulation path, the second air guide box 52 will be moved toward the door 3 under the action of the second driving member until the second air guide box 52 abuts against the side wall of the base 2 on the side of the door 3. At this time, the flexible guide plate 522 is pressed against the second air guide box 52, so that the first cavity 511 and the second air guide box 52 are connected.

[0056] In the preferred embodiment of the present invention, Figure 12-13 As shown, the partition 514 between the first cavity 511 and the second cavity 512 is tilted downward toward the second air guide box 52, so that the length of the airflow sprayed onto the partition 514 increases gradually, while the flow rate of the airflow on the partition 514 gradually decreases. After the airflow at the highest point of the tilt hits the tilted partition 514, a portion is diverted in the tilt direction, thereby guiding the airflow sprayed onto the partition 514 from below, thereby accelerating the discharge speed of the airflow on the tilted surface of the partition 514. At the same time, the second cavity 512 located below the first cavity 511 is a triangular cavity. The airflow entering the second cavity 512 will generate turbulence, increasing the contact area and time between the air and the cavity wall, thereby allowing the air to more effectively absorb or release heat when passing through the triangular cavity. Before the outdoor air enters the room, the outdoor air is pre-cooled and dehumidified to achieve rapid regulation of indoor temperature and humidity.

[0057] like Figure 7As shown, in order to ensure the circulation of air in the substation, a number of grille holes 31 are provided on the inner and outer walls of the box door 3, and are arranged towards the outdoor side; while ensuring that the internal gas flows outward, the entry of external gas into the substation is reduced. Since the airflow ejected from the first air curtain 41 will pass through the cavity in the box door 3 and enter the first air guide box 51 below, the airflow of the second air curtain 42 is directly ejected to the first air guide box 51. Therefore, in order to reduce the impact of the airflow of the first air curtain 41 on the airflow stability of the second air curtain 42, a number of grille holes 31 are arranged to be tilted downward to avoid the airflow of the first air curtain 41 from being mixed into the airflow of the second air curtain 42, thereby effectively ensuring the internal circulation of the airflow of the second air curtain 42 in the box body 1.

[0058] like Figure 3-6 As shown, the base 2 includes a frame 21, a bottom plate 22 and a top plate 23; the bottom plate 22 and the top plate 23 are arranged in parallel on the frame 21, and the top plate 23 is provided with an air curtain air inlet 231 at a position corresponding to the air curtain assembly 4, and an indoor air outlet 232 is provided at a position corresponding to the second cavity 512; the width of the air curtain air inlet 231 is greater than the width of the first cavity 511, so that the first air curtain 41 can realize outdoor circulation through the first cavity 511, and at the same time, the second air curtain 42 can enter the second cavity 512 through the air inlet and be ejected from the indoor air outlet 232, which helps to form an effective air circulation system, and by controlling the air intake and outlet, the indoor air quality and temperature can be effectively controlled, providing more comfortable climate conditions for the use environment.

[0059] As a preferred embodiment of the above, a filter 24 is provided on both the air curtain inlet 231 and the indoor air outlet 232. The filter 24 is set on the floor so that the airflow of the air curtain must enter and be discharged through the filter 24, which plays a dual filtering mechanism, effectively improves the air quality, and further improves the indoor airflow distribution.

[0060] like Figure 3 As shown, an outdoor air outlet 233 is provided on the side wall of the base 2 at a position corresponding to the through slot 521 of the second air guide box 52; the indoor air can be discharged directly to the outdoors, effectively isolating the indoor and outdoor air environments, and the outer side of the outdoor air outlet 233 is a grille structure to prevent external debris from entering the air guide system, and can also reduce the impact of severe weather conditions such as strong winds and rain on the system.

[0061] In the present invention, the inlet of the third cavity 513 is arranged on the side of the first air guide box 51 away from the end of the second air guide box 52, and passes through the second cavity 512. By aligning the inlet and outlet of the third cavity 513, the gas in the first transition cavity 51a is rectified and discharged into the second cavity 512, so that the airflow entering the second cavity 512 flows along a straight path, thereby improving the flow efficiency.

[0062] In the present invention, the first air guide box 51 and the second air guide box 52 are switched with the air circulation system under the alternating driving action of the driving assembly. Preferably, Figure 9 As shown, the first channel 61 and the second channel 62 are arranged on the same horizontal line along the driving direction of the driving assembly, so that when the first cavity 511 is connected with the second air guide box 52 through the second channel 62, the side wall of the second air guide box 52 blocks the first channel 61 to form a first transition cavity 51a. Similarly, when the first cavity 511 is directly discharged to the outside from the second transition channel, the second air guide box 52 blocks the second channel 62 to allow the airflow of the second air curtain 42 to be discharged to the room through the second cavity 512.

[0063] The present invention also provides a method for using an internal and external intelligent isolation box-type substation, comprising the following steps:

[0064] When the substation is operating normally, the temperature and humidity sensors located inside and outside the box body 1 monitor the indoor and outdoor temperature and humidity in real time and transmit them to the controller;

[0065] When the temperature and humidity in the substation need to be adjusted, if the temperature and humidity in the substation are less than or equal to the outdoor environment, the first driving member is started, and the first driving member drives the first air guide box 51 to move toward the box door 3. At this time, the second air guide box 52 and the side wall of the base 2 form a second transition cavity 52a. The first air curtain 41 passes through the box door 3, the first cavity 511 and the second transition cavity 52a in sequence and is discharged outdoors, while the airflow of the second air curtain 42 passes through the second cavity 512 and enters the room, so as to adjust the indoor temperature and humidity and realize independent circulation of indoor circulation and outdoor circulation;

[0066] If the temperature and humidity inside the substation are higher than the outdoor environment, the second driving member is started, and the second driving member drives the second air guide box 52 to move toward the box door 3. At this time, the first air guide box 51 and the side wall of the base 2 form a first transition cavity 51a. The airflow of the first air curtain 41 passes through the box door 3, the first transition cavity 51a, and the third cavity 513 in turn to enter the second cavity 512, and finally discharged into the room. The airflow of the second air curtain 42 enters the interior of the second air guide box 52 through the first cavity 511, and is discharged to the outside through the through groove 521, so as to realize indoor and outdoor circulation.

[0067] The system automatically adjusts to actual indoor and outdoor conditions to ensure a stable substation environment. This automated monitoring and adjustment mechanism significantly improves work efficiency and reduces human resource consumption. The automated control system design reduces the possibility of human error, improving the overall reliability and stability of the system. Furthermore, the system's self-regulating capabilities enable it to adapt to changes in the external environment, ensuring a consistently stable substation environment.

[0068] Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An internal and external intelligent isolated box-type substation, comprising a box body, a base arranged below the box body, and at least one set of box doors arranged on the side walls of the box body, and temperature and humidity sensors are arranged inside and outside the box body, characterized in that: Also includes: An air curtain assembly is arranged on the top of the door, comprising a first air curtain and a second air curtain arranged side by side along the thickness direction of the door, the second air curtain is arranged on the inner side, the first air curtain is arranged on the outer side, and the outlet of the first air curtain is connected to the hollow cavity of the door; An air guide assembly is provided in the base and below the box door, comprising a first air guide box and a second air guide box provided side by side with the first air guide box along the width direction of the box door; a drive assembly comprising a first drive member connected to the first air guide box and a second drive member connected to the second air guide box, the first drive member being used to drive the first air guide box to move to form a first transition cavity with the side wall of the base, and the second drive member being used to drive the second air guide box to move to form a second transition cavity with the side wall of the base; a controller, configured to receive signals from the temperature and humidity sensors and control the actions of the first and second driving members; The first air guide box includes a first cavity located below the first air curtain and a second cavity located below the second air curtain, and a third cavity connected to the second cavity is provided directly below the first cavity. The second air guide box is provided with a through slot on a side close to the box door, and a first channel and a second channel are provided on a crossbeam between the first air guide box and the second air guide box. The airflow of the first air curtain is sprayed to the first cavity, flows through the first channel and the second transition cavity into the outside, and the airflow of the second air curtain passes through the second cavity and enters the box body, thereby forming a first circulation path; The airflow of the second air curtain is sprayed into the first cavity, enters the second air guide box through the second channel, and the airflow of the first air curtain enters the first transition cavity, and flows through the second cavity through the third cavity into the box body to form a second circulation path.

2. The internal and external intelligent isolation box-type substation according to claim 1 is characterized in that: A flexible guide plate is provided on the outer surface of the second air guide box close to one end of the first air guide box, and the flexible guide plate is arranged obliquely.

3. The internal and external intelligent isolation box-type substation according to claim 1 is characterized in that: The partition between the first cavity and the second cavity is arranged to be tilted downward toward the second air guide box.

4. The internal and external intelligent isolation box-type substation according to claim 1 is characterized in that: The inner and outer side walls of the door are both provided with a plurality of grille holes, and are arranged toward the outdoor side; A plurality of the grille holes are arranged to be tilted downward.

5. The internal and external intelligent isolation box-type substation according to claim 1 is characterized in that: The base comprises a frame, a bottom plate and a top plate; The bottom plate and the top plate are arranged in parallel on the frame, and the top plate is provided with an air curtain air inlet at a position corresponding to the air curtain assembly, and is provided with an indoor air outlet at a position corresponding to the second cavity; The width of the air curtain inlet is greater than the width of the first cavity.

6. The internal and external intelligent isolation box-type substation according to claim 5, characterized in that: Filters are provided on the air curtain air inlet and the indoor air outlet.

7. The internal and external intelligent isolation box-type substation according to claim 1 is characterized in that: An outdoor air outlet is provided on the side wall of the base corresponding to the through slot of the second air guide box; The outer side of the outdoor air outlet is in a grille structure.

8. The internal and external intelligent isolation box-type substation according to claim 1 is characterized in that: The inlet of the third cavity is arranged on a side surface of the first air guide box away from one end of the second air guide box and passes through the second cavity.

9. The internal and external intelligent isolation box-type substation according to claim 1, characterized in that: The first channel and the second channel are arranged on the same horizontal line along the driving direction of the driving assembly.

10. A method for using the internal and external intelligent isolation box-type substation according to any one of claims 1 to 9, characterized in that: The following steps are involved: When the substation is operating normally, the temperature and humidity sensors located inside and outside the box body monitor the indoor and outdoor temperature and humidity in real time and transmit them to the controller; When the temperature and humidity in the substation need to be adjusted, if the temperature and humidity in the substation are less than or equal to the outdoor environment, the first driving member is started, and the first driving member drives the first air guide box to move toward the box door. At this time, the second air guide box and the side wall of the base form a second transition cavity. The first air curtain passes through the box door, the first cavity, and the second transition cavity in sequence and is discharged outdoors, while the airflow of the second air curtain passes through the second cavity and enters the room to adjust the indoor temperature and humidity, thereby realizing independent circulation of indoor and outdoor circulation; If the temperature and humidity inside the substation are higher than the outdoor environment, the second driving member is started, and the second driving member drives the second air guide box to move toward the box door. At this time, the first air guide box and the side wall of the base form a first transition cavity. The airflow of the first air curtain passes through the box door, the first transition cavity, and the third cavity in turn into the second cavity, and is finally discharged into the room. The airflow of the second air curtain passes through the first cavity into the second air guide box and is discharged to the outside through the through groove, so as to realize indoor and outdoor circulation.

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