Prefabricated transformer substation with moisture-proof structure

Abstract

The utility model discloses a prefabricated substation with a moisture-proof structure, which comprises a prefabricated substation body, a wall pipe, a dehumidification box, a dehumidification fan and a heating box, the wall pipe is mounted on one outer side wall of the prefabricated substation body, the dehumidification box is mounted on one side in the prefabricated substation body, and the dehumidification fan is mounted on the other side in the prefabricated substation body. The dehumidification box is arranged in the prefabricated substation body, a drying chamber is arranged in the dehumidification box, the drying chamber is filled with a drying agent, the dehumidification fan is installed in the prefabricated substation body on one side of the dehumidification box, the heating box is installed on one side of the prefabricated substation body, and heating rods are installed in the heating box. And a drying fan is mounted on one side in the heating box. According to the utility model, the built-in automatic dehumidification mechanism and the drying agent can be dried and reused, the use is convenient, the cost is low, the ventilation window is automatically closed in rainy days, and the safe operation of the transformer substation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer substations, in particular to a prefabricated transformer substation with a moisture-proof structure. Background Art

[0002] A prefabricated substation is a factory-fabricated, compact indoor or outdoor power distribution system that integrates high-voltage switchgear, distribution transformers, and low-voltage distribution equipment according to a specific wiring scheme. This substation organically combines the transformer's voltage step-down function with low-voltage power distribution, housed in a fully enclosed, portable steel structure that is moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, theft-proof, and heat-insulated. It is particularly suitable for urban power grid construction and renovation, and represents a new type of substation, following the rise of civil substations. Prefabricated substations are suitable for use in mines, factories, enterprises, oil and gas fields, and wind power stations, becoming a new type of complete power transformation and distribution system. They replace existing civil distribution rooms and substations, offering advantages such as small size, minimal footprint, light weight, low cost, and reliability. Electrical connections in prefabricated substations are typically made via cables or busbars, and all high and low voltage distribution equipment and transformers are standard, prefabricated products. It is particularly suitable for residential areas, urban public substations, bustling downtown areas and other occasions, and can provide fast, flexible and reliable power supply.

[0003] At present, the moisture-proof effect of prefabricated substations is average. External moisture can easily enter the interior of the substation. Excessive humidity will cause the internal insulation material to absorb moisture, resulting in a decrease in insulation strength, which may lead to serious accidents such as short circuits and discharges. Humidity may also cause corrosion of metal parts and increase equipment maintenance costs. Therefore, a moisture-proof structure needs to be set up. However, most of the moisture-proof structures currently used are built-in desiccant structures. Although they can absorb some moisture, the desiccant needs to be replaced to ensure the moisture absorption effect. Not only is the operation inconvenient, but the cost is also high, so it is urgently needed to be improved. Utility Model Content

[0004] The purpose of the present utility model is to provide a prefabricated substation with a moisture-proof structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a prefabricated substation with a moisture-proof structure, comprising a prefabricated substation body, a wall tube, a dehumidification box, a dehumidification fan and a heating box, wherein the wall tube is installed on an outer side wall of the prefabricated substation body, and an outer wall on one side of the wall tube is provided with air ducts at equal intervals, one end of the air duct extends to the interior of the prefabricated substation body, the dehumidification box is installed on one side of the interior of the prefabricated substation body, and a drying chamber is provided inside the dehumidification box, and the interior of the drying chamber is filled with Desiccant, a dehumidification pipe is installed on one side of the top of the dehumidification box through a first solenoid valve, one end of the dehumidification pipe extends to the outside of the prefabricated substation body and is connected to the wall pipe, a control box is installed on the inner wall of the prefabricated substation body, the dehumidification fan is installed inside the prefabricated substation body on one side of the dehumidification box, the heating box is installed on one side of the prefabricated substation body, and a heating rod is installed inside the heating box, and a drying fan is installed on one side of the inside of the heating box, and a door body is installed on the outer wall of one side of the prefabricated substation body.

[0006] Preferably, a rain sensor is installed on one side of the top of the prefabricated substation body.

[0007] Preferably, a ventilation window is provided inside the door body, and a ventilation grille is installed at the bottom of the ventilation window.

[0008] Preferably, a rain shield is slidably installed inside the ventilation window above the ventilation grille, and racks are fixed on both side walls of the rain shield.

[0009] Preferably, motors are installed on both sides of the rain shield, and gears are installed on the output ends of the motors. The gears are tightly meshed with the racks. The motors drive the gears to rotate, and the gears drive the rain shields downward through the racks, so that the rain shields completely cover the ventilation grilles.

[0010] Preferably, an exhaust pipe is installed on the other side of the top of the dehumidification box through a second solenoid valve, and the top of the exhaust pipe is connected to the exhaust port on the outer wall of the prefabricated substation body.

[0011] Preferably, the input end of the dehumidification fan extends to the interior of the prefabricated substation body, and the output end of the dehumidification fan is connected to the drying chamber through the first air inlet pipe.

[0012] Preferably, one end of the heating box is connected to the drying chamber through a second air inlet pipe.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The dehumidification fan extracts the air from the prefabricated substation body and transports it to the drying chamber inside the dehumidification box through the first air inlet pipe. When the air passes through the desiccant, the desiccant absorbs the moisture in the air. The desiccant is granular silica gel. The first solenoid valve opens, allowing the dehumidified dry air to enter the wall tube through the dehumidification pipe and then be evenly introduced back into the prefabricated substation body through the air duct. This cycle allows the air inside the prefabricated substation body to circulate and be continuously dehumidified by the desiccant. The prefabricated substation has a built-in automatic dehumidification mechanism, which has a moisture-proof effect.

[0015] The drying fan draws external air into the heating box and heats it through the heating rod. The hot air is then introduced into the drying chamber through the second air inlet pipe to heat and bake the desiccant. At this time, the first solenoid valve is closed and the second solenoid valve is opened, allowing the moisture inside the desiccant to be discharged through the exhaust pipe and then discharged to the outside through the exhaust port. After the desiccant is dried, it can be reused, making it reusable without the need for frequent replacement. It is convenient to use and low in cost.

[0016] When the rain sensor detects rain, the motor drives the gear to rotate, and the gear drives the rain shield to move down through the rack. The rain shield completely covers the ventilation grille, preventing rainwater from entering the prefabricated substation body and also preventing moisture from entering. By automatically closing the ventilation window when it rains, the moisture-proof effect is further improved, thereby ensuring the safe operation of the substation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0018] Figure 2 This is an enlarged structural diagram of the dehumidification box of the utility model;

[0019] Figure 3 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0020] Figure 4 This is a schematic diagram of the enlarged structure of the wall tube of the utility model;

[0021] Figure 5 This is a schematic diagram of the enlarged cross-sectional structure of the ventilation window of the present invention.

[0022] In the figure: 1. Prefabricated substation body; 101. Rain sensor; 2. Wall tube; 3. Door; 4. Ventilation window; 5. Ventilation grille; 6. Control box; 7. Dehumidification box; 8. Exhaust port; 9. Dehumidification fan; 10. Heating box; 11. First air inlet pipe; 12. Drying chamber; 13. Desiccant; 14. Dehumidification pipe; 15. First solenoid valve; 16. Exhaust pipe; 17. Second solenoid valve; 18. Second air inlet pipe; 19. Drying fan; 20. Heating rod; 21. Air guide pipe; 22. Rain shield; 23. Rack; 24. Motor; 25. Gear. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-5 , the utility model provides an embodiment: a prefabricated substation with a moisture-proof structure, comprising a prefabricated substation body 1, a wall tube 2, a dehumidification box 7, a dehumidification fan 9 and a heating box 10, the wall tube 2 is installed on an outer wall of the prefabricated substation body 1, and the outer wall of one side of the wall tube 2 is provided with an equally spaced air duct 21, one end of the air duct 21 extends to the interior of the prefabricated substation body 1, the dehumidification box 7 is installed on one side of the interior of the prefabricated substation body 1, and the interior of the dehumidification box 7 is provided with a drying chamber 12, and the interior of the drying chamber 12 is filled with a desiccant 13, a dehumidification pipe 14 is installed on one side of the top of the dehumidification box 7 through a first solenoid valve 15, one end of the dehumidification pipe 14 extends to the outside of the prefabricated substation body 1 and is connected to the wall tube 2, a control box 6 is installed on the inner wall of the prefabricated substation body 1, and the dehumidification fan 9 is installed inside the prefabricated substation body 1 on one side of the dehumidification box 7;

[0026] Specifically, when the humidity sensor inside the prefabricated substation body 1 detects that the humidity is high, it transmits a signal to the control box 6. The control box 6 controls the dehumidification fan 9 to work. The dehumidification fan 9 extracts the air inside the prefabricated substation body 1 and transports it to the drying chamber 12 inside the dehumidification box 7 through the first air inlet pipe 11. When the air passes through the desiccant 13, the desiccant 13 absorbs the moisture in the air. The desiccant 13 is granular silica gel. At this time, the first solenoid valve 15 is opened, allowing the dehumidified dry air to enter the wall tube 2 through the dehumidification pipe 14, and then be evenly introduced back into the prefabricated substation body 1 through the air duct 21. This cycle allows the air inside the prefabricated substation body 1 to circulate and be continuously dehumidified by the desiccant 13. The prefabricated substation has a built-in automatic dehumidification mechanism, which has a moisture-proof effect.

[0027] After one dehumidification is completed, the drying fan 19 is started to draw external air into the heating box 10 and heat it through the heating rod 20. The hot air is introduced into the drying chamber 12 through the second air inlet pipe 18 to heat and bake the desiccant 13. At this time, the first solenoid valve 15 is closed and the second solenoid valve 17 is opened, so that the moisture inside the desiccant 13 is discharged through the exhaust pipe 16 and discharged to the outside through the exhaust port 8. After the desiccant 13 is dried, it can be reused, so that the desiccant 13 can be reused, without the need for frequent replacement, which is convenient to use and low in cost.

[0028] The heating box 10 is installed on one side of the prefabricated substation body 1, and a heating rod 20 is installed inside the heating box 10, and a drying fan 19 is installed on one side of the heating box 10;

[0029] A door body 3 is installed on the outer wall of one side of the prefabricated substation body 1;

[0030] A rain sensor 101 is installed on one side of the top of the prefabricated substation body 1;

[0031] A ventilation window 4 is provided inside the door body 3, and a ventilation grille 5 is installed at the bottom of the ventilation window 4;

[0032] A rain shield 22 is slidably mounted inside the ventilation window 4 above the ventilation grille 5, and racks 23 are fixed on both side walls of the rain shield 22;

[0033] A motor 24 is installed on both sides of the rain shield 22, and a gear 25 is installed at the output end of the motor 24, and the gear 25 is tightly meshed with the rack 23;

[0034] Specifically, when the rain sensor 101 detects rain, it transmits a signal to the control box 6, which controls the motor 24 to work, and the motor 24 drives the gear 25 to rotate. The gear 25 drives the rain shield 22 downward through the rack 23. The rain shield 22 completely blocks the ventilation grille 5, which can prevent rainwater from entering the prefabricated substation body 1 and prevent moisture from entering. By automatically closing the ventilation window 4 when it rains, the moisture-proof effect is further improved, thereby ensuring the safe operation of the substation.

[0035] An exhaust pipe 16 is installed on the other side of the top of the dehumidification box 7 through a second solenoid valve 17, and the top of the exhaust pipe 16 is connected to the exhaust port 8 on the outer wall of the prefabricated substation body 1;

[0036] The input end of the dehumidification fan 9 extends to the interior of the prefabricated substation body 1, and the output end of the dehumidification fan 9 is connected to the drying chamber 12 through the first air inlet pipe 11;

[0037] One end of the heating box 10 is connected to the drying chamber 12 through a second air inlet pipe 18 .

[0038] When the embodiment of the present application is in use: first, when the humidity sensor inside the prefabricated substation body 1 detects that the humidity is high, it transmits a signal to the control box 6, and the control box 6 controls the dehumidification fan 9 to work. The dehumidification fan 9 extracts the air inside the prefabricated substation body 1 and transports it to the drying chamber 12 inside the dehumidification box 7 through the first air inlet pipe 11. When the air passes through the desiccant 13, the desiccant 13 absorbs the moisture in the air. The desiccant 13 is granular silica gel. At this time, the first solenoid valve 15 is opened, allowing the dehumidified dry air to enter the wall tube 2 through the dehumidification pipe 14, and then be evenly introduced back into the prefabricated substation body 1 through the air duct 21. This cycle allows the air inside the prefabricated substation body 1 to circulate and be continuously dehumidified by the desiccant 13. The prefabricated substation has a built-in automatic dehumidification mechanism, which has a moisture-proof effect. Then, after one dehumidification is completed, the drying fan 19 is started to suck the external air into the heating box 10 After being heated by the heating rod 20, the hot air is introduced into the drying chamber 12 through the second air inlet pipe 18 to heat and bake the desiccant 13. At this time, the first solenoid valve 15 is closed and the second solenoid valve 17 is opened, so that the moisture inside the desiccant 13 is discharged through the exhaust pipe 16 and discharged to the outside through the exhaust port 8. After the desiccant 13 is baked and dried, it can be reused, so that the desiccant 13 can be reused, without frequent replacement, easy to use and low cost. In addition, when the rain sensor 101 detects rain, it transmits a signal to the control box 6, and the control box 6 controls the motor 24 to work. The motor 24 drives the gear 25 to rotate, and the gear 25 drives the rain shield 22 to move down through the rack 23. The rain shield 22 completely blocks the ventilation grille 5, which can prevent rainwater from entering the prefabricated substation body 1 and can prevent moisture from entering. By automatically closing the ventilation window 4 when it rains, the moisture-proof effect is further improved, thereby ensuring the safe operation of the substation.

[0039] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A prefabricated substation with a moisture-proof structure, characterized in that: The invention comprises a prefabricated substation body (1), a wall tube (2), a dehumidification box (7), a dehumidification fan (9) and a heating box (10), wherein the wall tube (2) is installed on an outer wall of the prefabricated substation body (1), and air ducts (21) are provided at equal intervals on the outer wall of one side of the wall tube (2), and one end of the air duct (21) extends to the interior of the prefabricated substation body (1), the dehumidification box (7) is installed on one side of the interior of the prefabricated substation body (1), and a drying chamber (12) is provided inside the dehumidification box (7), and the interior of the drying chamber (12) is filled with a desiccant (13), and one side of the top of the dehumidification box (7) is connected to the first electromagnetic The valve (15) is installed with a dehumidification pipe (14), one end of which extends to the outside of the prefabricated substation body (1) and is connected to the wall pipe (2), a control box (6) is installed on the inner wall of the prefabricated substation body (1), the dehumidification fan (9) is installed inside the prefabricated substation body (1) on one side of the dehumidification box (7), the heating box (10) is installed on one side of the prefabricated substation body (1), and a heating rod (20) is installed inside the heating box (10), and a drying fan (19) is installed on one side of the inside of the heating box (10), and a door body (3) is installed on the outer wall of one side of the prefabricated substation body (1).

2. The prefabricated substation with a moisture-proof structure according to claim 1, characterized in that: A rain sensor (101) is installed on one side of the top of the prefabricated substation body (1).

3. The prefabricated substation with a moisture-proof structure according to claim 1, characterized in that: A ventilation window (4) is provided inside the door body (3), and a ventilation grille (5) is installed at the bottom of the ventilation window (4).

4. The prefabricated substation with a moisture-proof structure according to claim 3, characterized in that: A rain shield (22) is slidably mounted inside the ventilation window (4) above the ventilation grille (5), and racks (23) are fixed on both side walls of the rain shield (22).

5. The prefabricated substation with a moisture-proof structure according to claim 4, characterized in that: Motors (24) are installed on both sides of the rain shield (22), and a gear (25) is installed at the output end of the motor (24), and the gear (25) is tightly meshed with the rack (23).

6. The prefabricated substation with a moisture-proof structure according to claim 1, characterized in that: An exhaust pipe (16) is installed on the other side of the top of the dehumidification box (7) via a second solenoid valve (17), and the top of the exhaust pipe (16) is connected to an exhaust port (8) on the outer wall of the prefabricated substation body (1).

7. The prefabricated substation with a moisture-proof structure according to claim 1, characterized in that: The input end of the dehumidification fan (9) extends to the interior of the prefabricated substation body (1), and the output end of the dehumidification fan (9) is connected to the drying chamber (12) through the first air inlet pipe (11).

8. The prefabricated substation with a moisture-proof structure according to claim 1, characterized in that: One end of the heating box (10) is in communication with the drying chamber (12) via a second air inlet pipe (18).

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