Outdoor box-type transformer substation

Abstract

The utility model relates to the technical field of transformer substations, and discloses an outdoor box-type transformer substation, which comprises a box-type transformer substation body and a composite base arranged at the bottom of the box-type transformer substation body, and a sealing ring is filled in a connection gap between the box-type transformer substation body and the composite base. The bottom of the box-type transformer substation body is provided with a heat dissipation groove, and a protection filter screen is embedded in the heat dissipation groove. The air outlet assembly, the active air conveying assembly, the drying assembly, the first electromagnetic valve pipe, the second electromagnetic valve pipe, the fourth electromagnetic valve pipe, the fifth electromagnetic valve pipe and the third electromagnetic valve pipe form a plurality of groups of air conveying flow channels to be alternately used in different use environments; according to the utility model, active air transmission and heat dissipation can be carried out on the box-type transformer substation body in an ideal environment, and active air transmission and heat dissipation can be carried out on the box-type transformer substation body after wet cold air is dried in a wet environment, so that the problems in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of substation technology, specifically to an outdoor box-type substation. Background Technology

[0002] A prefabricated substation, also known as a compact substation, is a small, fully assembled power distribution device that integrates transformers, switchgear, protection equipment, cable connectors, and control devices. It is commonly used in demanding environments such as urban basements, industrial and mining enterprises, construction sites, rural power grids, and hospitals to meet their power needs and improve the reliability and stability of power supply.

[0003] As electrical equipment, prefabricated substations inevitably face the problem of heat dissipation in practical use. Currently, some technical solutions for assisting the heat dissipation of prefabricated substations have been disclosed in existing technologies, such as setting up a reciprocating roof structure and adding cooling fans. However, the above-mentioned technical solutions have too theoretical requirements for the operating environment. When faced with some harsh environments and practical problems, such as prolonged humid air and increased operating costs, there are no solutions. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an outdoor box-type substation, which solves the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: an outdoor box-type substation, including a box-type substation body and a composite base installed at the bottom of the box-type substation body. The connection gap between the box-type substation body and the composite base is filled with a sealing ring. A heat dissipation groove is opened at the bottom of the box-type substation body, and a protective filter is nested in the heat dissipation groove. An air outlet component is provided at the top of the rear end of the box-type substation body. An assembly space is opened inside the composite base. An active air supply component and a drying component are installed inside the assembly space. The active air supply component includes a protective box and an axial flow fan installed inside the protective box. The drying component includes a semi-open sealing sleeve and a drying box component snapped into the semi-open sealing sleeve. A first solenoid valve tube is installed between the top of the semi-open sealing sleeve and the heat dissipation groove. A second solenoid valve tube is installed between the protective box and the semi-open sealing sleeve.

[0006] The top of the protective box is equipped with a third solenoid valve tube, and the rear end of the composite base is provided with an installation groove that communicates with the assembly space. A sealing cover is fitted inside the installation groove. The rear end structure of the sealing cover is equipped with an arc-shaped pipe head that communicates with the internal space of the assembly space, and a second dust filter is nested inside the rear end of the arc-shaped pipe head.

[0007] Specifically, the drying chamber components include a drying chamber body and two partition plates. The two partition plates are equidistantly distributed vertically inside the drying chamber body, dividing the internal space of the drying chamber body into two desiccant storage spaces, thereby providing structural conditions for dehumidifying external cold air used subsequently. The drying chamber body has a first air inlet aligned with one end of the second solenoid valve tube and a second air inlet aligned with one end of the first solenoid valve tube, respectively. The rear end structure of the drying chamber body is fitted with two transition tubes. One end of each of the two transition tubes is aligned with the two desiccant storage spaces, and the other end of each of the two transition tubes is threaded with a sealing cap, thereby providing a desiccant replacement channel for the continuous use of the two desiccant storage spaces.

[0008] The two partitions are composed of a partition body and a first dust filter fixedly connected to one side of the partition body. The partition body and the first dust filter are both fixedly fitted inside the drying chamber. The two first dust filters are arranged vertically inside the drying chamber, thereby forming an S-shaped flow channel space inside the drying chamber, increasing the contact time between the outside cold air and the desiccant inside the drying chamber.

[0009] Specifically, the air outlet assembly includes a main air duct. The front end of the main air duct is fixedly sleeved on the rear end structure of the top of the box-type substation body and communicates with the internal space of the box-type substation body. Thus, under ideal operating conditions, the main air duct can provide a self-cooling hot and cold air convection channel for the box-type substation body. An auxiliary solenoid valve is installed in the middle of the main air duct, and a clearance groove is opened at the bottom of the rear end of the main air duct. A third dust filter is nested in the clearance groove to optimize the usage effect.

[0010] Selectedly, a fourth solenoid valve tube is installed between the top of the protective box and the top of the first solenoid valve tube, which increases the active cooling operation mode of the box-type substation body. A fifth solenoid valve tube is installed inside the assembly space. One end of the fifth solenoid valve tube passes through the top structure of the composite base and extends to the bottom inner side of the box-type substation body.

[0011] Specifically, the protective box is equipped with a photoelectric water level sensor and a humidity sensor on its surface, and a processor is installed inside the protective box. The processor is electrically connected to the photoelectric water level sensor, the humidity sensor, the solenoid valves inside the first solenoid valve tube, the second solenoid valve tube, the fourth solenoid valve tube, the fifth solenoid valve tube, and the auxiliary solenoid valve via wires, thereby optimizing the intelligent use of the overall equipment.

[0012] Preferably, the inner wall of the front end of the mounting groove is provided with a threaded hole, and the sealing cover is provided with a countersunk hole aligned with the threaded hole. The sealing cover and the threaded hole are installed and fixed by means of a screw passing through the countersunk hole inside the cover and being threaded to the threaded hole. The installation is convenient and simple.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model, through the arrangement of an air outlet component, an active air supply component, and a drying component, together with the first, second, fourth, fifth, and third solenoid valve tubes, forms multiple sets of air supply channels for alternating use in different operating environments. It can achieve active air supply and heat dissipation of the box-type substation body in ideal environments, and in humid environments, it dries the humid cold air before actively supplying air and heat dissipating the box-type substation body, thus solving the problems existing in the prior art.

[0015] 2. This utility model uses a photoelectric water level sensor, a humidity sensor, and a processor to form an intelligent auxiliary device that can be used in conjunction with multiple sets of air supply channels. In the event of severe flooding in the operating environment, the intelligent auxiliary device can promptly close multiple solenoid valves in multiple sets of air supply channels to seal and protect the main body of the box-type substation and the axial flow fan, reduce losses, and improve the overall flood resistance of the equipment. Attached Figure Description

[0016] Figure 1 This is a partial cross-sectional view of the structure of this utility model;

[0017] Figure 2 This is a rear view schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a front view schematic diagram of the structure of this utility model;

[0019] Figure 4 This is a bottom view of the main body of the box-type substation of this utility model;

[0020] Figure 5 This is a partial cross-sectional schematic diagram of the main body of the box-type substation of this utility model;

[0021] Figure 6 This is an enlarged schematic diagram of the main air duct of this utility model;

[0022] Figure 7 This is a front view schematic diagram of the sealing cover plate of this utility model;

[0023] Figure 8 This is a left-side view of the photoelectric water level sensor of this utility model.

[0024] In the diagram: 1. Box-type substation body; 2. Composite base; 3. Assembly space; 4. Semi-open sealed sleeve; 5. Drying box components; 51. Drying box body; 52. Partition plate; 521. Partition plate body; 522. First dust filter; 6. Protective box; 7. Axial flow fan; 8. First solenoid valve tube; 9. Second solenoid valve tube; 10. Third solenoid valve tube; 11. Sealing cover plate; 12. Second dust filter; 13. Arc-shaped pipe head; 14. Main air duct; 15. Auxiliary solenoid valve; 16. Third dust filter; 17. Fourth solenoid valve tube; 18. Fifth solenoid valve tube; 19. Photoelectric water level sensor; 20. Humidity sensor; 21. Processor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-8 An outdoor box-type substation includes a box-type substation body 1 and a composite base 2 installed at the bottom of the box-type substation body 1. The connection gap between the box-type substation body 1 and the composite base 2 is filled with a sealing ring. A heat dissipation groove is opened at the bottom of the box-type substation body 1, and a protective filter is nested in the heat dissipation groove. An air outlet component is provided at the top of the rear end of the box-type substation body 1.

[0027] The air outlet assembly includes a main air duct 14. The front end of the main air duct 14 is fixedly sleeved on the rear end structure of the top of the box-type substation body 1 and communicates with the internal space of the box-type substation body 1. Thus, under ideal operating conditions, the main air duct 14 can provide a self-cooling hot and cold air convection channel for the box-type substation body 1. An auxiliary solenoid valve 15 is installed in the middle of the main air duct 14. A clearance groove is opened at the bottom of the rear end of the main air duct 14, and a third dust filter 16 is nested in the clearance groove to optimize the use effect.

[0028] The composite base 2 has an assembly space 3 inside, and the assembly space 3 is equipped with an active air supply component and a drying component. The active air supply component includes a protective box 6 and an axial fan 7 installed inside the protective box 6. The drying component includes a semi-open sealing sleeve 4 and a drying box component 5 snapped into the semi-open sealing sleeve 4. A first solenoid valve tube 8 is installed between the top of the semi-open sealing sleeve 4 and the heat dissipation groove, and a second solenoid valve tube 9 is installed between the protective box 6 and the semi-open sealing sleeve 4.

[0029] The drying chamber component 5 includes a drying chamber body 51 and two partition plates 52. The two partition plates 52 are equidistantly distributed inside the drying chamber body 51 and divide the internal space of the drying chamber body 51 into two desiccant storage spaces, thereby providing structural conditions for dehumidifying the external cold air used later. The drying chamber body 51 has a first air outlet aligned with one end of the second solenoid valve tube 9 and a second air outlet aligned with one end of the first solenoid valve tube 8, respectively. The rear end structure of the drying chamber body 51 is fitted with two transition tubes. One end of the two transition tubes is aligned with the two desiccant storage spaces, and the other end of the two transition tubes is threaded with a sealing cap, thereby providing a desiccant replacement channel for the continuous use of the two desiccant storage spaces.

[0030] The two partition plates 52 are composed of a partition plate body 521 and a first dust filter 522 fixedly connected to one side of the partition plate body 521. The partition plate body 521 and the first dust filter 522 are both fixedly sleeved inside the drying chamber 51, and the two first dust filters 522 are arranged vertically inside the drying chamber 51, thereby forming an S-shaped flow channel space inside the drying chamber 51, increasing the contact time between the outside cold air and the desiccant inside the drying chamber 51.

[0031] The top of the protective box 6 is equipped with a third solenoid valve tube 10. The rear end of the composite base 2 is provided with an installation groove that communicates with the assembly space 3. A sealing cover plate 11 is fitted inside the installation groove. A threaded hole is provided on the inner wall of the front end of the installation groove. A countersunk hole aligned with the threaded hole is provided inside the sealing cover plate 11. The sealing cover plate 11 and the threaded hole are installed and fixed by means of screws passing through the countersunk hole inside itself and being threaded to the threaded hole. The installation is convenient and simple. The rear end structure of the sealing cover plate 11 is equipped with an arc-shaped tube head 13 that communicates with the internal space of the assembly space 3. A second dust filter 12 is nested inside the rear end of the arc-shaped tube head 13.

[0032] A fourth solenoid valve tube 17 is installed between the top of the protective box 6 and the top of the first solenoid valve tube 8 to increase the active cooling operation mode of the box-type substation body 1. A fifth solenoid valve tube 18 is installed inside the assembly space 3. One end of the fifth solenoid valve tube 18 penetrates the top structure of the composite base 2 and extends to the bottom inner side of the box-type substation body 1.

[0033] The protective box 6 is equipped with a photoelectric water level sensor 19 and a humidity sensor 20. Inside the protective box 6, a processor 21 is installed. The processor 21 is electrically connected to the photoelectric water level sensor 19, the humidity sensor 20, the solenoid valves inside the first solenoid valve tube 8, the second solenoid valve tube 9, the fourth solenoid valve tube 17, the fifth solenoid valve tube 18, and the auxiliary solenoid valve 15 via wires, thereby optimizing the intelligent use of the overall equipment.

[0034] Working principle:

[0035] Example 1

[0036] When the environment in which the box-type substation body 1 is located experiences prolonged air humidity but requires rapid heat dissipation, the processor 21 closes the auxiliary solenoid valve 15 and opens the axial fan 7, the internal solenoid valves of the third solenoid valve tube 10, the fifth solenoid valve tube 18, the first solenoid valve tube 8, and the second solenoid valve tube 9. The air inside the composite base 2 enters the protective box 6 through the third solenoid valve tube 10, and the axial fan 7 accelerates and guides the air inside the protective box 6 and delivers it to the interior of the semi-open sealed sleeve plate 4 through the second solenoid valve tube 9. Then, the air is dehumidified by the pre-placed dryer on top of the two partition plates 52 inside the drying box component 5. The dried cold air then enters the interior of the box-type substation body 1 through the first solenoid valve tube 8 and the heat dissipation slot to cool the various electronic components inside the box-type substation body 1 with air blowing.

[0037] After cold air is continuously supplied to the interior of the box-type substation body 1, the hot air inside the box-type substation body 1 will be diverted to the interior of the composite base 2 through the fifth solenoid valve tube 18, thereby meeting the rapid heat dissipation requirements of the box-type substation body 1. The hot air entering the composite base 2 mixes with the humid cold air that continuously enters the composite base 2 through the arc-shaped pipe head 13. The residual heat in the hot air can perform heat conduction drying on the humid cold air, thereby reducing the moisture content of the cold air to be used and extending the service life of the desiccant inside the drying box component 5.

[0038] Example 2

[0039] When the operating environment of the enclosure substation body 1 is ideal and rapid heat dissipation is required, the processor 21 closes the solenoid valves inside the second solenoid valve tube 9 and the first solenoid valve tube 8, and opens the auxiliary solenoid valve 15, the solenoid valves inside the fourth solenoid valve tube 17 and the third solenoid valve tube 10, as well as the axial fan 7. The cold air inside the composite base 2 enters the protective box 6 through the third solenoid valve tube 10, and the axial fan 7 accelerates and guides the cold air inside the protective box 6 through the top structure of the fourth solenoid valve tube 17 and the first solenoid valve tube 8 and the heat dissipation slots to the interior of the enclosure substation body 1, which cools the various electronic components inside the enclosure substation body 1 with air blowing. The hot air inside the enclosure substation body 1 is discharged from the interior of the enclosure substation body 1 through the two main air ducts 14, thereby meeting the rapid heat dissipation requirements.

[0040] Example 3

[0041] When the environment where the box-type substation body 1 and composite base 2 are located is flooded, the floodwater on the ground will enter the interior of the assembly space 3 through the arc-shaped pipe head 13. At the same time, the photoelectric water level sensor 19 will detect the liquid level in real time and transmit it to the processor 21. The processor 21 will close the solenoid valve inside the third solenoid valve pipe 10, so that the space of the protective box 6 is sealed, protecting the axial fan 7. It will also close the solenoid valve inside the fifth solenoid valve pipe 18, the solenoid valve inside the first solenoid valve pipe 8, and the auxiliary solenoid valve 15, so that the space inside the box-type substation body 1 is sealed, protecting the box-type substation body 1. In this way, the flood resistance effect of the box-type substation body 1 is maximized and the loss of electronic components inside the overall equipment is reduced.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outdoor prefabricated substation, comprising a prefabricated substation body (1) and a composite base (2) installed at the bottom of the prefabricated substation body (1), characterized in that: The connection gap between the box-type substation body (1) and the composite base (2) is filled with a sealing ring. The bottom of the box-type substation body (1) is provided with a heat dissipation groove. A protective filter is nested in the heat dissipation groove. An air outlet assembly is provided at the top of the rear end of the box-type substation body (1). An assembly space (3) is provided inside the composite base (2). An active air supply assembly and a drying assembly are installed inside the assembly space (3). The active air supply assembly includes a protective box (6) and an axial flow fan (7) installed inside the protective box (6). The drying assembly includes a semi-open sealing sleeve (4) and a drying box component (5) snapped into the semi-open sealing sleeve (4). A first solenoid valve tube (8) is installed between the top of the semi-open sealing sleeve (4) and the heat dissipation groove. A second solenoid valve tube (9) is installed between the protective box (6) and the semi-open sealing sleeve (4). The top of the protective box (6) is equipped with a third solenoid valve tube (10). The rear end of the composite base (2) is provided with an installation groove that communicates with the assembly space (3). A sealing cover plate (11) is fitted inside the installation groove. The rear end structure of the sealing cover plate (11) is equipped with an arc-shaped pipe head (13) that communicates with the internal space of the assembly space (3). The inner side of the rear end of the arc-shaped pipe head (13) is nested with a second dust filter (12).

2. An outdoor prefabricated substation according to claim 1, characterized in that: The drying chamber component (5) includes a drying chamber body (51) and two partition plates (52). The two partition plates (52) are distributed equidistantly inside the drying chamber body (51) and divide the internal space of the drying chamber body (51) into two desiccant storage spaces. The drying chamber body (51) has a first air supply hole aligned with one end of the second solenoid valve tube (9) and a second air supply hole aligned with one end of the first solenoid valve tube (8) on one side and the top, respectively. The rear end structure of the drying chamber body (51) is fitted with two transition tubes. One end of the two transition tubes is aligned with the two desiccant storage spaces, and the other end of the two transition tubes is threaded with a sealing cap.

3. An outdoor box-type substation according to claim 2, characterized in that: The two partition plates (52) are composed of a partition plate body (521) and a first dust filter (522) fixedly connected to one side of the partition plate body (521). The partition plate body (521) and the first dust filter (522) are both fixedly sleeved inside the drying chamber (51), and the two first dust filters (522) are arranged vertically inside the drying chamber (51).

4. An outdoor prefabricated substation according to claim 1, characterized in that: The air outlet assembly includes a main air duct (14), the front end of which is fixedly sleeved on the rear end structure of the top of the box-type substation body (1) and communicates with the internal space of the box-type substation body (1). An auxiliary solenoid valve (15) is installed in the middle of the main air duct (14), and a clearance groove is provided at the bottom of the rear end of the main air duct (14). A third dust filter (16) is nested in the clearance groove.

5. An outdoor box-type substation according to claim 1, characterized in that: A fourth solenoid valve tube (17) is installed between the top of the protective box (6) and the top of the first solenoid valve tube (8). A fifth solenoid valve tube (18) is installed inside the assembly space (3). One end of the fifth solenoid valve tube (18) penetrates the top structure of the composite base (2) and extends to the bottom inner side of the box-type substation body (1).

6. An outdoor prefabricated substation according to claim 1, characterized in that: The protective box (6) is equipped with a photoelectric water level sensor (19) and a humidity sensor (20) on its surface. The protective box (6) is equipped with a processor (21) inside its interior. The processor (21) is electrically connected to the photoelectric water level sensor (19), the humidity sensor (20), the solenoid valve inside the first solenoid valve tube (8), the solenoid valve inside the second solenoid valve tube (9), the solenoid valve inside the fourth solenoid valve tube (17), the solenoid valve inside the fifth solenoid valve tube (18), and the auxiliary solenoid valve (15) via wires.

7. An outdoor box-type substation according to claim 1, characterized in that: The inner wall of the front end of the mounting groove is provided with a threaded hole, and the sealing cover plate (11) is provided with a countersunk hole aligned with the threaded hole. The sealing cover plate (11) and the threaded hole are installed and fixed by means of a screw passing through the countersunk hole inside itself and being threaded to the threaded hole.

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