Cabinet door structure of power distribution cabinet for nuclear power station

Abstract

The utility model discloses a power distribution cabinet door structure for a nuclear power station, which comprises a power distribution cabinet, a cabinet door is arranged at the front end of the power distribution cabinet, a sealing waterproof mechanism is arranged on the cabinet door, and a buffer mechanism is arranged between the cabinet door and the power distribution cabinet; the power distribution cabinet comprises a cabinet door, a sealing ring is arranged on the cabinet door, a sealing waterproof mechanism is arranged on the cabinet door, the sealing waterproof mechanism comprises a groove shaped like a Chinese character'hui ', the groove shaped like the Chinese character'hui' is arranged in the cabinet door, a drying agent is placed in the groove shaped like the Chinese character'hui ', a cushion shaped like the Chinese character'hui' is arranged at the upper end of the groove shaped like the Chinese character'hui ', and a plurality of holes are formed in the cushion shaped like the Chinese character'hui'. The sealing ring and the sealing groove are matched to isolate external water vapor, the water vapor is prevented from entering the power distribution cabinet and damaging equipment in the power distribution cabinet, the clip-shaped groove is formed in the cabinet door, a drying agent is placed in the clip-shaped groove, the water vapor possibly entering the power distribution cabinet is absorbed, and a dry environment is always kept in the power distribution cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinet doors, in particular to a power distribution cabinet door structure for a nuclear power station. Background Art

[0002] The power distribution cabinet is a general term for the motor control center, which is used in places where the load is relatively dispersed and there are fewer circuits. The motor control center is used in places where the load is concentrated and there are more circuits. Their main function is to distribute electrical energy and protect the line from overload, short circuit and leakage. The main uses of the power distribution cabinet include: control and distribution of electrical equipment; protection against overload, short circuit and leakage of the line; facilitating the control, monitoring, measurement and protection of power lines and major electrical equipment; when a line fails, it can effectively control the scope of the fault and facilitate maintenance; when the line is repaired, it can be checked in sections to avoid affecting life due to large-scale power outages.

[0003] The power distribution cabinet is an important component of the electrical system, used for power control, protection, metering and monitoring. It is usually installed outdoors. With the changeable weather, the working environment of the power distribution cabinet is also very harsh. The existing power distribution cabinet door has poor sealing effect. When the sealing between the cabinet door and the power distribution cabinet is poor, water vapor or rainwater may enter the power distribution cabinet, which may cause damage to the electrical equipment inside the power distribution cabinet, or even a major failure. Therefore, we need to design a power distribution cabinet door structure for nuclear power plants to solve the problem that water vapor or rainwater may enter the power distribution cabinet through the gap between the cabinet door and the power distribution cabinet. Utility Model Content

[0004] The utility model aims to provide a cabinet door structure for a power distribution cabinet for a nuclear power station. A sealing ring is installed on the cabinet door, a sealing groove is provided on the power distribution cabinet, and external water vapor is isolated through the cooperation of the sealing ring and the sealing groove to prevent water vapor from entering the power distribution cabinet and damaging the equipment in the power distribution cabinet. In addition, a return groove is opened inside the cabinet door, and a desiccant is placed inside the return groove to absorb water vapor that may enter the power distribution cabinet, so that a dry environment is always maintained in the power distribution cabinet.

[0005] To achieve the above object, the utility model provides the following technical solutions: a door structure of a power distribution cabinet for a nuclear power plant, comprising a power distribution cabinet, a cabinet door is installed at the front end of the power distribution cabinet, a sealing and waterproof mechanism is installed on the cabinet door, and a buffer mechanism is installed between the cabinet door and the power distribution cabinet;

[0006] The sealing and waterproof mechanism includes a return groove, which is arranged inside the cabinet door. A desiccant is placed inside the return groove. A return pad is installed at the upper end of the return groove. The return pad is provided with a plurality of holes. A sealing ring is installed on the cabinet door close to the return pad. A sealing groove is provided on the distribution cabinet opposite to the sealing ring. The sealing ring is installed in the sealing groove.

[0007] Preferably, the buffer mechanism includes four buffer blocks, two of which are installed at the inner upper end of the cabinet door, and the other two are installed at the inner lower end of the cabinet door. Four buffer grooves are provided at the front end of the distribution cabinet opposite to the four buffer blocks, and springs are installed inside the four buffer grooves, and buffer pads are installed at one end of the four springs.

[0008] Preferably, four support rods are installed at the upper end of the power distribution cabinet, and waterproof plates are installed at the upper ends of the four support rods.

[0009] Preferably, a mounting groove is provided on the cabinet door, a glass plate is embedded on a side of the mounting groove close to the power distribution cabinet, and a guardrail is installed on a side of the mounting groove away from the power distribution cabinet.

[0010] Preferably, a feed trough is provided at the upper end of the cabinet door, the lower end of the feed trough is communicated with the return groove, and a feed door is hingedly installed at the upper end of the feed trough.

[0011] Preferably, a discharge chute is provided at the lower end of the cabinet door, the upper end of the discharge chute is communicated with the return groove, and a discharge door is hingedly installed at the lower end of the feed chute.

[0012] Preferably, a protective plate is installed on the outside of the cabinet door, and a handle is installed on one side of the protective plate.

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

[0014] The utility model mainly installs a sealing ring on the cabinet door and arranges a sealing groove on the distribution cabinet, and isolates external water vapor through the cooperation of the sealing ring and the sealing groove to prevent water vapor from entering the distribution cabinet and damaging the equipment in the distribution cabinet. In addition, a return groove is opened inside the cabinet door, and a desiccant is placed inside the return groove to absorb water vapor that may enter the distribution cabinet, so that a dry environment is always maintained in the distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the power distribution cabinet door for a nuclear power plant of the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of a cabinet door of the utility model;

[0017] Figure 3 For this utility model Figure 2 A magnified view of middle;

[0018] Figure 4 For this utility model Figure 2 Enlarged view of middle B;

[0019] Figure 5 This is a cross-sectional schematic diagram of the power distribution cabinet of the utility model;

[0020] Figure 6 For this utility model Figure 5 Enlarged view of C in the middle.

[0021] In the figure: 1. waterproof board; 2. distribution cabinet; 3. support rod; 4. cabinet door; 5. handle; 6. guardrail; 7. glass plate; 8. buffer block; 9. sealing ring; 10. feed door; 11. feed chute; 12. return groove; 13. return pad; 14. hole; 15. discharge door; 16. discharge chute; 17. buffer groove; 18. buffer pad; 19. spring. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-6 The utility model provides a technical solution: a door structure of a power distribution cabinet for a nuclear power plant, comprising a power distribution cabinet 2, a cabinet door 4 is installed at the front end of the power distribution cabinet 2, a sealing and waterproof mechanism is installed on the cabinet door 4, and a buffer mechanism is installed between the cabinet door 4 and the power distribution cabinet 2;

[0024] The sealing and waterproof mechanism includes a return groove 12, which is arranged inside the cabinet door 4. A desiccant is placed inside the return groove 12. A return pad 13 is installed at the upper end of the return groove 12. A plurality of holes 14 are arranged on the return pad 13. A sealing ring 9 is installed on the cabinet door 4 near the return pad 13. A sealing groove is provided on the distribution cabinet 2 opposite to the sealing ring 9, and the sealing ring 9 is installed in the sealing groove.

[0025] The buffer mechanism includes four buffer blocks 8, two of which are installed at the upper end of the cabinet door 4, and the other two buffer blocks 8 are installed at the lower end of the cabinet door 4. Four buffer grooves 17 are arranged at the front end of the distribution cabinet 2 opposite to the four buffer blocks 8. Springs 19 are installed inside the four buffer grooves 17, and buffer pads 18 are installed at one end of the four springs 19. When the distribution cabinet 2 is used countless times, the cabinet door 4 will be repeatedly opened and closed, and the distribution cabinet 2 and the cabinet door 4 will collide with each other repeatedly, which may cause the cabinet door 4 to be damaged or deformed, thereby reducing the service life of the cabinet door 4. Therefore, a buffer mechanism is installed between the cabinet door 4 and the distribution cabinet 2 to reduce the impact between the cabinet door 4 and the distribution cabinet 2, thereby protecting the cabinet door 4.

[0026] Four support rods 3 are installed at the upper end of the distribution cabinet 2, and waterproof plates 1 are installed at the upper ends of the four support rods 3. The waterproof plates 1 are provided to further protect the distribution cabinet 2 and prevent rainwater from entering the distribution cabinet 2 through the gap between the cabinet door 4 and the distribution cabinet 2.

[0027] The cabinet door 4 is provided with an installation groove, a glass plate 7 is embedded on the side of the installation groove close to the distribution cabinet 2, and a guardrail 6 is installed on the side of the installation groove away from the distribution cabinet 2. The glass plate 7 is installed to facilitate viewing of the interior of the distribution cabinet 2.

[0028] A feed chute 11 is provided at the upper end of the cabinet door 4 , the lower end of the feed chute 11 is connected to the return groove 12 , and a feed door 10 is hingedly installed at the upper end of the feed chute 11 , so that feeding the return groove 12 is facilitated by providing the feed chute 11 .

[0029] A discharge chute 16 is provided at the lower end of the cabinet door 4, and the upper end of the discharge chute 16 is communicated with the return groove 12. A discharge door 15 is hingedly installed at the lower end of the feed chute 11. The discharge chute 16 is provided to facilitate the discharge of the used desiccant.

[0030] A protective plate is installed on the outside of the cabinet door 4, and a handle 5 is installed on one side of the protective plate. The protective plate is installed on the outside of the cabinet door 4 to protect the cabinet door 4 and prevent the cabinet door 4 from being damaged by external impact.

[0031] When in use, open the feed door 10, pour the desiccant into the return groove 12 through the feed trough 11, and then close the feed door 10. The sealing ring 9 installed on the cabinet door 4 will be clamped together with the sealing groove set on the distribution cabinet 2 to prevent water vapor or rainwater from entering the distribution cabinet 2 through the gap between the cabinet door 4 and the distribution cabinet 2, causing damage to the electrical equipment inside the distribution cabinet 2. Since a buffer mechanism is installed between the cabinet door 4 and the distribution cabinet 2, when the cabinet door 4 collides with the distribution cabinet 2, the buffer block 8 conflicts with the buffer pad 18, and the spring 19 installed on the buffer pad 18 will buffer part of the impact force, so that the cabinet door 4 will not directly collide with the distribution cabinet 2, thereby protecting the cabinet door 4.

[0032] 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 door structure of a power distribution cabinet for a nuclear power plant, comprising a power distribution cabinet (2), characterized in that: A cabinet door (4) is installed at the front end of the power distribution cabinet (2), a sealing and waterproof mechanism is installed on the cabinet door (4), and a buffer mechanism is installed between the cabinet door (4) and the power distribution cabinet (2); The sealing and waterproof mechanism comprises a return groove (12), the return groove (12) is arranged inside the cabinet door (4), a desiccant is placed inside the return groove (12), a return pad (13) is installed at the upper end of the return groove (12), a plurality of holes (14) are arranged on the return pad (13), a sealing ring (9) is installed on the cabinet door (4) near the return pad (13), and a sealing groove is arranged on the power distribution cabinet (2) opposite to the sealing ring (9), and the sealing ring (9) is installed in the sealing groove.

2. The door structure of a power distribution cabinet for a nuclear power plant according to claim 1, characterized in that: The buffer mechanism comprises four buffer blocks (8), wherein two of the buffer blocks (8) are mounted on the upper end of the cabinet door (4), and the other two of the buffer blocks (8) are mounted on the lower end of the cabinet door (4); four buffer grooves (17) are arranged at the front end of the power distribution cabinet (2) opposite to the four buffer blocks (8); springs (19) are installed inside the four buffer grooves (17), and buffer pads (18) are installed at one end of the four springs (19).

3. A door structure of a power distribution cabinet for a nuclear power plant according to claim 2, characterized in that: Four support rods (3) are installed at the upper end of the power distribution cabinet (2), and waterproof plates (1) are installed at the upper ends of the four support rods (3).

4. A door structure of a power distribution cabinet for a nuclear power plant according to claim 3, characterized in that: The cabinet door (4) is provided with a mounting groove, a glass plate (7) is embedded on a side of the mounting groove close to the power distribution cabinet (2), and a guardrail (6) is installed on a side of the mounting groove away from the power distribution cabinet (2).

5. A door structure of a power distribution cabinet for a nuclear power plant according to claim 4, characterized in that: A feed trough (11) is provided at the upper end of the cabinet door (4), the lower end of the feed trough (11) is communicated with the return groove (12), and a feed door (10) is hingedly mounted at the upper end of the feed trough (11).

6. A door structure of a power distribution cabinet for a nuclear power plant according to claim 5, characterized in that: A discharge chute (16) is provided at the lower end of the cabinet door (4), the upper end of the discharge chute (16) is communicated with the return groove (12), and a discharge door (15) is hingedly mounted at the lower end of the discharge chute (16).

7. A door structure of a power distribution cabinet for a nuclear power plant according to claim 6, characterized in that: A protective plate is installed on the outside of the cabinet door (4), and a handle (5) is installed on one side of the protective plate.

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