Box-type substation ventilation device

Abstract

The utility model discloses a box-type transformer station ventilation device which comprises a steel structure box, a ventilation mechanism is arranged above one side of the steel structure box, an air inlet mechanism is arranged below the other side of the steel structure box, the ventilation mechanism comprises a fan assembly and an air outlet cylinder, the air inlet mechanism comprises an air inlet cylinder and a filter cylinder, and the filter cylinder is arranged in the air inlet cylinder. Stepping motors are installed on the outer side of the air outlet cylinder and the outer side of the air inlet cylinder correspondingly, one ends of the stepping motors are connected with blocking discs, and the two blocking discs are located in the air outlet cylinder and the air inlet cylinder correspondingly. The stepping motor can drive the baffle disc to rotate, in the rotating process of the baffle disc, opening and closing of the channel of the air duct are achieved, during ventilation, the stepping motor works to drive the channel of the air outlet duct and the channel of the air inlet duct to be opened, after ventilation is completed, the stepping motor works to drive the channel of the air outlet duct and the channel of the air inlet duct to be closed, and the box-type substation is in a closed state. Therefore, external water vapor, dust, mosquitoes and other impurities are prevented from entering, and the protection performance of the steel structure box of the box-type transformer substation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer substation ventilation, in particular to a box-type transformer substation ventilation device. Background Art

[0002] Box-type substation, also called prefabricated substation or prefabricated substation, is a high-voltage switchgear. It replaces the original civil power distribution room and substation, integrates transformer step-down, low-voltage power distribution and other functions, is suitable for urban network construction and transformation, and is widely used in mines, factories, enterprises, oil and gas fields and wind power stations. Most of the losses of various equipment in the box-type substation are dissipated in the form of heat, so ventilation devices need to be set up for ventilation and heat dissipation.

[0003] Most of the existing ventilation devices are air-cooled structures, which require multiple sets of wind window structures for ventilation on the box-type substation. When no ventilation and heat dissipation are performed, the wind window structure will reduce the overall airtightness of the box-type substation, and external water vapor, dust, mosquitoes, etc. can easily enter the interior of the box-type substation, reducing the protectiveness of the steel structure box of the box-type substation. Utility Model Content

[0004] The purpose of the utility model is to provide a box-type transformer substation ventilation device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a box-type substation ventilation device, comprising a steel structure box, a ventilation mechanism is arranged above one side of the steel structure box, and an air intake mechanism is arranged below the other side of the steel structure box, the ventilation mechanism comprises a fan assembly and an air outlet cylinder, the air intake mechanism comprises an air inlet cylinder and a filter cylinder, stepper motors are installed on the outside of the air outlet cylinder and the air inlet cylinder, one end of the stepper motor is connected to a baffle, and two groups of baffles are respectively located inside the air outlet cylinder and the air inlet cylinder.

[0006] Wherein, the outer ring of the baffle is provided with a sealing ring.

[0007] Wherein, a connecting shaft is welded and fixed on the baffle, and the connecting shaft is fixedly connected to the output shaft of the stepper motor via a coupling.

[0008] Wherein, a mounting frame is arranged on the fan assembly, a mounting lug is arranged on the mounting frame, and the ventilation mechanism is fixed to the inner wall of the steel structure box by bolts.

[0009] Wherein, the filter cartridge is equipped with a dust removal filter element and a dehumidification filter element.

[0010] Among them, a first mounting plate is welded and fixed to one end of the air outlet cylinder and the air inlet cylinder, a second mounting plate is welded and fixed to the fan assembly, a third mounting plate is welded and fixed to one end of the filter cylinder, and the air outlet cylinder and the fan assembly are fixed by bolts, and the air inlet cylinder and the filter cylinder are fixed by bolts.

[0011] Wherein, a mounting plate is welded and fixed to the other ends of the air outlet duct and the air inlet duct, and the air outlet duct and the air inlet duct are fixed to the steel structure box by bolts, and a through groove is opened on the mounting plate.

[0012] Wherein, a baffle is welded and fixed on the outer side surface of the mounting plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the stepper motor of the utility model is working, it can drive the baffle plate to rotate. During the rotation of the baffle plate, the opening and closing of the air duct channel is realized. During ventilation, the stepper motor drives the channels of the air outlet duct and the air inlet duct to open. After the ventilation is completed, the stepper motor drives the channels of the air outlet duct and the air inlet duct to close, so that the steel structure box of the box-type substation is in a closed state, thereby blocking the entry of external impurities such as water vapor, dust, mosquitoes, etc., thereby improving the protectiveness of the steel structure box of the box-type substation, and the opening and closing structure of the air duct channel is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the air outlet and air inlet of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the baffle of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the fan assembly of the utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the filter cartridge of the utility model.

[0020] In the figure: 1. steel structure box; 2. ventilation mechanism; 3. air inlet mechanism; 4. fan assembly; 5. air outlet cylinder; 6. air inlet cylinder; 7. filter cylinder; 8. stepper motor; 9. baffle plate; 10. sealing ring; 11. connecting shaft; 12. mounting frame; 13. mounting lug; 14. dust filter element; 15. dehumidification filter element; 16. first mounting plate; 17. second mounting plate; 18. third mounting plate; 19. mounting plate; 20. through groove; 21. baffle plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a technical solution: a box-type substation ventilation device, including a steel structure box 1, a ventilation mechanism 2 is arranged above one side of the steel structure box 1, and an air intake mechanism 3 is arranged below the other side of the steel structure box 1. The ventilation mechanism 2 includes a fan assembly 4 and an air outlet 5, and the air intake mechanism 3 includes an air intake 6 and a filter cylinder 7. Stepper motors 8 are installed on the outsides of the air outlet 5 and the air inlet 6. One end of the stepper motor 8 is connected to a baffle 9, and two sets of baffles 9 are respectively located inside the air outlet 5 and the air inlet 6.

[0023] Among them, when the stepper motor 8 is working, it can drive the baffle plate 9 to rotate. During the rotation of the baffle plate 9, the opening and closing of the air duct channel is realized. During ventilation, the stepper motor 8 works to drive the channels of the air outlet duct 5 and the air inlet duct 6 to open. After the ventilation is completed, the stepper motor 8 works to drive the channels of the air outlet duct 5 and the air inlet duct 6 to close, so that the steel structure box 1 is in a closed state, thereby improving the airtightness of the box-type substation, thereby preventing the entry of external impurities such as water vapor, dust, mosquitoes, etc.

[0024] Among them, the ventilation mechanism 2 and the air intake mechanism 3 constitute a ventilation system, and the ventilation mechanism 2 and the air intake mechanism 3 are arranged diagonally. During ventilation, the air flow range is large, which improves the ventilation effect. The ventilation system is used in conjunction with the temperature control system. The temperature control system includes a thermostat, a temperature sensor, and an AC contactor. The temperature sensor monitors the internal ambient temperature of the steel structure box 1 in real time. When the temperature is higher than the set value, the fan assembly 4 of the ventilation mechanism 2 is controlled by the AC contactor to start, and the air inside the steel structure box 1 is discharged. Fresh air from the outside enters through the air inlet duct 6 to achieve ventilation and heat exchange.

[0025] Among them, the outer ring of the baffle plate 9 is provided with a sealing ring 10. When the passages of the air outlet duct 5 and the air inlet duct 6 are in a closed state, the sealing ring 10 of the baffle plate 9 of the air outlet duct 5 is in close contact with the inner wall of the air outlet duct 5, and the sealing ring 10 of the baffle plate 9 of the air inlet duct 6 is in close contact with the inner wall of the air inlet duct 6, thereby improving the airtightness of the box-type substation.

[0026] Among them, a connecting shaft 11 is welded and fixed on the baffle plate 9, and the connecting shaft 11 is fixedly connected to the output shaft of the stepper motor 8 through a coupling. When the stepper motor 8 is working, it is driven by the connecting shaft 11 to drive the baffle plate 9 to rotate relative to the air outlet duct 5 and the air inlet duct 6.

[0027] Among them, the fan assembly 4 is provided with a mounting frame 12, and the mounting frame 12 is provided with a mounting lug 13, and the ventilation mechanism 2 is fixed to the inner wall of the steel structure box 1 by bolts, the connection method is simple, and the fan assembly 4 is convenient to assemble and disassemble.

[0028] The filter cartridge 7 is equipped with a dust removal filter element 14 and a dehumidification filter element 15.

[0029] Among them, during the ventilation process, fresh air enters the steel structure box 1 of the box-type substation through the air intake mechanism 3. Before the fresh air enters the internal chamber of the steel structure box 1, it first passes through the air intake tube 6 and then passes through the filter tube 7. The fresh air is filtered by the filter tube 7, and the dust removal filter element 14 filters out dust particles in the air. The dehumidification filter element 15 filters out moisture in the air, so that the gas entering the internal chamber of the steel structure box 1 is clean and dry gas, which effectively ensures the cleanliness and dryness of the internal environment of the steel structure box 1 and improves the stability of the working environment of the internal components of the box-type substation.

[0030] Among them, a first mounting plate 16 is welded and fixed to one end of the air outlet 5 and the air inlet 6, a second mounting plate 17 is welded and fixed to the fan assembly 4, and a third mounting plate 18 is welded and fixed to one end of the filter cartridge 7. The air outlet 5 and the fan assembly 4 are fixed by bolts, and the air inlet 6 and the filter cartridge 7 are fixed by bolts. The connection method is simple, the fan assembly 4 and the air outlet 5 are detachable, the air inlet 6 and the filter cartridge 7 are detachable, the ventilation mechanism 2 and the air inlet mechanism 3 are both detachable, and the maintenance of the ventilation system is convenient.

[0031] Among them, the other ends of the air outlet 5 and the air inlet 6 are welded and fixed with a mounting plate 19, and the air outlet 5 and the air inlet 6 are fixed to the steel structure box 1 by bolts. A through groove 20 is opened on the mounting plate 19, and the through groove 20 is aligned with the channels of the air outlet 5 and the air inlet 6. The air outlet 5 and the air inlet 6 are fixed to the side wall of the steel structure box 1 by the mounting plate 19. The installation and fixing method is simple and easy to assemble and disassemble.

[0032] A baffle 21 is welded and fixed to the outer side surface of the mounting plate 19 . The baffle 21 includes an inclined structure and plays a role in guiding and shielding.

[0033] Working principle: The ventilation mechanism 2 and the air inlet mechanism 3 constitute a ventilation system, and the ventilation system is used in conjunction with the temperature control system. The temperature control system includes a thermostat, a temperature sensor, and an AC contactor. The temperature sensor monitors the internal ambient temperature of the steel structure box 1 in real time. When the temperature is higher than the set value, the fan assembly 4 of the ventilation mechanism 2 is controlled by the AC contactor to start, and the stepper motor 8 of the air outlet 5 and the air inlet 6 works to drive the channels of the air outlet 5 and the air inlet 6 to open, and the air inside the steel structure box 1 is discharged. The outside fresh air enters through the air inlet 6. Before the fresh air enters the internal chamber of the steel structure box 1, it first passes through the air inlet 6, then passes through the filter cartridge 7, and then passes through the filter cartridge 7. The filter cartridge 7 filters the fresh air, the dust filter element 14 filters out the dust particles in the air, and the dehumidification filter element 15 filters out the moisture in the air, so that the gas entering the internal chamber of the steel structure box 1 is clean and dry gas. The ventilation and heat dissipation of the box-type substation are realized by continuously exhausting and inletting air until the internal temperature of the steel structure box 1 returns to the specified range. After the ventilation is completed, the stepper motor 8 of the air outlet 5 and the air inlet 6 works to drive the channels of the air outlet 5 and the air inlet 6 to be closed, so that the steel structure box 1 is in a closed state, thereby improving the airtightness of the box-type substation, thereby preventing the entry of external impurities such as water vapor, dust, and mosquitoes.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A box-type substation ventilation device, comprising a steel structure box (1), characterized in that: A ventilation mechanism (2) is arranged above one side of the steel structure box (1), and an air intake mechanism (3) is arranged below the other side of the steel structure box (1). The ventilation mechanism (2) includes a fan assembly (4) and an air outlet cylinder (5), and the air intake mechanism (3) includes an air intake cylinder (6) and a filter cylinder (7). Stepper motors (8) are installed on the outside of the air outlet cylinder (5) and the air intake cylinder (6), and one end of the stepper motor (8) is connected to a baffle (9). Two groups of baffles (9) are respectively located inside the air outlet cylinder (5) and the air intake cylinder (6).

2. A box-type substation ventilation device according to claim 1, characterized in that: The outer ring of the baffle (9) is provided with a sealing ring (10).

3. A box-type substation ventilation device according to claim 1, characterized in that: A connecting shaft (11) is welded and fixed on the baffle plate (9), and the connecting shaft (11) is fixedly connected to the output shaft of the stepping motor (8) via a coupling.

4. A box-type substation ventilation device according to claim 1, characterized in that: The fan assembly (4) is provided with a mounting frame (12), the mounting frame (12) is provided with a mounting lug (13), and the ventilation mechanism (2) is fixed to the inner wall of the steel structure box (1) by means of bolts.

5. A box-type substation ventilation device according to claim 1, characterized in that: The filter cartridge (7) is internally provided with a dust removal filter element (14) and a dehumidification filter element (15).

6. A box-type substation ventilation device according to claim 1, characterized in that: A first mounting plate (16) is welded and fixed to one end of the air outlet cylinder (5) and the air inlet cylinder (6), a second mounting plate (17) is welded and fixed to the fan assembly (4), a third mounting plate (18) is welded and fixed to one end of the filter cylinder (7), and the air outlet cylinder (5) and the fan assembly (4) are fixed by bolts, and the air inlet cylinder (6) and the filter cylinder (7) are fixed by bolts.

7. A box-type substation ventilation device according to claim 1, characterized in that: The other ends of the air outlet duct (5) and the air inlet duct (6) are both welded and fixed with a mounting plate (19), and the air outlet duct (5) and the air inlet duct (6) are fixed to the steel structure box (1) by bolts, and a through groove (20) is provided on the mounting plate (19).

8. A box-type substation ventilation device according to claim 7, characterized in that: A baffle (21) is welded and fixed to the outer side surface of the mounting plate (19).

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