CN221929101U - An electrical protection device for a power plant - Google Patents

Abstract

The utility model discloses an electric protection device for a power plant, which comprises an electric box, wherein one side of the electric box is fixedly connected with an air inlet pipe, the inside of the air inlet pipe is fixedly connected with a mounting frame, the upper part of the mounting frame is fixedly connected with a motor, the power end of the motor is fixedly connected with a fan, the two ends of the inside of the air inlet pipe are fixedly connected with isolation nets, one side of the inside of the electric box, which is close to the air inlet pipe, is fixedly connected with an isolation plate, a plurality of ventilation openings are formed in the isolation plate, one side of the electric box, which is far away from the air inlet pipe, is provided with a plurality of air outlets, the upper part of the electric box is fixedly connected with four groups of first support rods, the upper parts of the two groups of the first support rods on the rear side are fixedly connected with a cold water box, the lower part of the cold water box is fixedly connected with a water outlet pipe, the water outlet pipe penetrates through the electric box and is fixedly connected with a contact pipe, and the inside of the electric box is radiated in an air radiating and cold water radiating mode, so that the radiating efficiency is improved, and the damage to the device caused by the fact that the temperature of the electric device is too high is prevented.

Description

An electrical protection device for a power plant

Technical Field

The utility model relates to the field of electrical technology, in particular to an electrical protection device for a power plant.

Background Art

The electrical equipment of the power system is divided into primary equipment and secondary equipment. The primary equipment (also called main equipment) is the main body of the power system. It is the equipment that directly produces, transmits and distributes electric energy, including generators, power transformers, circuit breakers, disconnectors, power buses, power cables and transmission lines. Secondary equipment is the equipment that controls, regulates, protects and monitors the primary equipment. It includes control equipment, relay protection and automatic devices, measuring instruments, signaling equipment, etc. The secondary equipment is electrically connected to the primary equipment through voltage transformers and current transformers.

Since electrical equipment is usually installed in an electrical box with a small space and the connected equipment is attached, the electrical protection device will inevitably generate a lot of heat when working. Usually, a cooling fan is set to dissipate the heat inside the equipment. However, the heat dissipation method using only a cooling fan is inefficient and difficult to eliminate, which may cause a fire at the end of the line.

Utility Model Content

The purpose of the utility model is to provide an electrical protection device for a power plant to solve the problems raised in the above background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrical protection device for a power plant, comprising an electrical box, one side of the electrical box is fixedly connected to an air inlet pipe, the inside of the air inlet pipe is fixedly connected to a mounting frame, the upper part of the mounting frame is fixedly connected to a motor, the power end of the motor is fixedly connected to a fan, both ends of the air inlet pipe are fixedly connected to isolation nets, the inside of the electrical box close to the air inlet pipe is fixedly connected to an isolation plate, a plurality of vents are provided inside the isolation plate, a plurality of air outlets are provided on the side of the electrical box away from the air inlet pipe, four groups of first support rods are fixedly connected to the upper part of the electrical box, the upper parts of the two rear groups of the first support rods are fixedly connected to a cold water tank, the lower part of the cold water tank is fixedly connected to a water outlet pipe, the water outlet pipe penetrates the electrical box and is fixedly connected to a contact pipe, and the contact pipe is directly opposite to the air inlet pipe.

Preferably, the other end of the contact tube is fixedly connected to a return pipe, the upper parts of the two front groups of the first support rods are fixedly connected to a cooling box, the upper part of the return pipe penetrates into the interior of the cooling box, and a supplementary pipe is fixedly connected between the cooling box and the side of the cold water tank away from the contact tube.

Preferably, the cooling box is fixedly connected to the upper part of the cold water tank with a second support rod, a rain shield is fixedly connected to the top of the second support rod, bent plates are fixedly connected to both sides of the rain shield, a first inclined groove is provided at the lower part of both ends of the rain shield, a shielding plate is fixedly connected to the high part of the first inclined groove, a water outlet is provided at the lower part of one side of the first inclined groove close to the low part, a collecting pipe is fixedly connected to the lower part of the rain shield opposite to the water outlet, a collecting pipe is fixedly connected between the front and rear collecting pipes, a second inclined groove is provided inside the collecting pipe, and a connecting pipe is fixedly connected between the front collecting pipe and the cooling box.

Preferably, a first filter is slidably connected inside the water opening, and a second filter is fixedly connected inside the connecting pipe on a side close to the cooling box.

Preferably, the outer wall of the cooling box is provided with fins.

Preferably, a temperature sensor is fixedly connected to a side of the inner wall of the electrical box away from the isolation plate.

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

1. The utility model uses a temperature sensor, a motor, a method, an air inlet pipe, an electrical box, a cold water tank, a water outlet pipe, a contact pipe, a vent, a cooling box, a water return pipe, and a supplementary pipe in coordination. When the temperature sensor senses that the temperature in the electrical box is too high, the motor drives the fan to rotate, so that air enters the electrical box along the air inlet pipe, and the water in the cold water tank enters the contact pipe from the water outlet pipe. The air contacts the contact pipe to cool down, and then blows to each row of installed electronic devices through the vent. The hot water in the contact pipe is recovered to the cooling box through the water return pipe by a water pump in the cooling box. After the cooling box cools the water, it returns to the cold water tank along the supplementary pipe. The interior of the electrical box is cooled by air and cold water, so as to improve the cooling efficiency and prevent the electrical device from being damaged due to excessive temperature and untimely heat dissipation.

2. The utility model also uses a bent plate, a rain shield, a first inclined groove, a water outlet, a collecting pipe, a gathering pipe, a connecting pipe, and a cooling box in coordination. The bent plate collects rainwater flowing down from the rain shield, and the first inclined groove controls rainwater to flow into the collecting pipe through the water outlet, and then enters the cooling box through the connecting pipe after being collected by the gathering pipe. Rainwater can be used to supplement cooling water, thereby improving the utilization rate of water resources.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle;

FIG2 is a sectional view of the three-dimensional structure of the utility model from a second viewing angle;

FIG3 is a cross-sectional view of the air inlet duct structure from a third viewing angle of the present invention;

FIG4 is a schematic diagram of the structure of the rain shield of the utility model from a fourth viewing angle;

FIG5 is a schematic diagram of the structure of the first filter screen from a fifth viewing angle of the present invention;

FIG. 6 is a schematic diagram of the second filter structure from a sixth viewing angle of the present invention.

In the figure: 1. electrical box; 2. air inlet pipe; 3. mounting frame; 4. motor; 5. fan; 6. isolation net; 7. isolation plate; 8. vent; 9. temperature sensor; 10. first support rod; 11. cold water tank; 12. cooling box; 13. outlet pipe; 14. contact pipe; 15. return pipe; 16. air outlet; 17. fin; 18. replenishing pipe; 19. second support rod; 20. rain shield; 21. first chute; 22. shielding plate; 23. water outlet; 24. first filter; 25. bent plate; 26. collecting pipe; 27. collecting pipe; 28. second chute; 29. connecting pipe; 30. second filter.

DETAILED DESCRIPTION

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.

Please refer to Figures 1-6. The utility model provides a technical solution: an electrical protection device for a power plant, including an electrical box 1, an air inlet pipe 2 is fixedly welded on one side of the electrical box 1, a mounting frame 3 is fixedly welded inside the air inlet pipe 2, a motor 4 is mounted on the upper flange of the mounting frame 3, a fan 5 is connected to the power end coupling of the motor 4, isolation nets 6 are fixedly welded at both ends of the air inlet pipe 2, and the isolation net 6 filters the air, an isolation plate 7 is fixedly welded on one side of the electrical box 1 close to the air inlet pipe 2, and a plurality of vents 8 are opened inside the isolation plate 7, and the vents 8 are directly opposite to the electrical installation rail, so that the heat dissipation is more targeted, and the electrical box 1 is away from the air inlet pipe 2. A plurality of air outlets 16 are provided on the side to realize air circulation. Four groups of first support rods 10 are fixedly welded on the upper part of the electrical box 1. A cold water tank 11 is fixedly welded on the upper part of the two groups of first support rods 10 on the rear side. A water outlet pipe 13 is fixedly welded on the lower part of the cold water tank 11. The water outlet pipe 13 penetrates the electrical box 1 and is fixedly welded with a contact pipe 14. The contact pipe 14 increases the contact area between air and cold water. The contact pipe 14 faces the air inlet pipe 2. The motor 4 drives the fan 5 to rotate, so that air enters the interior of the electrical box 1 along the air inlet pipe 2. The water in the cold water tank 11 enters the contact pipe 14 from the water outlet pipe 13. The air contacts the contact pipe 14 to cool down, and then blows to the electronic device from the vent 8.

The other end of the contact tube 14 is fixedly welded with a return pipe 15, and the upper part of the two groups of first support rods 10 on the front side is fixedly welded with a cooling box 12. The water in the cooling box 12 is cooled by a condenser. The upper part of the return pipe 15 penetrates into the cooling box 12. The hot water in the contact tube 14 is recovered to the cooling box 12 through the return pipe 15 by a water pump in the cooling box 12. A supplementary pipe 18 is fixedly welded between the cooling box 12 and the side of the cold water tank 11 away from the contact tube 14. The water cooled in the cooling box 12 is returned to the cold water tank 11 through the supplementary pipe 18. The water tank 11 can be reused; the cooling box 12 is fixedly welded with a second support rod 19 on the upper part of the cold water tank 11, and a rain shield 20 is fixedly welded on the top of the second support rod 19. The rain shield 20 prevents rainwater from entering the electrical box 1. The two sides of the rain shield 20 are fixedly welded with bent plates 25. The bent plates 25 collect rainwater flowing down the rain shield 20. The lower parts of the two ends of the rain shield 20 are provided with first inclined grooves 21. The first inclined grooves 21 control the flow direction of rainwater. A shielding plate 22 is fixedly welded at the high part of the first inclined groove 21. The shielding plate 22 prevents rainwater from overflowing. A water inlet 23 is provided at the lower part of the first chute 21 near the lower side. A collecting pipe 26 is fixedly welded at the lower part of the rain shield 20 opposite to the water inlet 23. A collecting pipe 27 is fixedly welded between the front and rear collecting pipes 26. A second chute 28 is provided inside the collecting pipe 27. The second chute 28 allows the water of the rear collecting pipe 26 to flow into the front side along the collecting pipe 27. A connecting pipe 29 is fixedly welded between the front collecting pipe 26 and the cooling box 12. Rainwater flows into the collecting pipe 26 through the water inlet 23 and passes through After being collected by the collecting pipe 27, the rainwater enters the cooling box 12 through the connecting pipe 29; a first filter screen 24 is slidably installed inside the water opening 23 to prevent impurities from entering the water opening 23, and a second filter screen 30 is fixedly welded inside the connecting pipe 29 close to the cooling box 12 to further filter the rainwater; fins 17 are provided on the outer wall of the cooling box 12 to improve the cooling efficiency of the cooling box 12; a temperature sensor 9 is installed on the filter screen on the inner wall of the electrical box 1 away from the isolation plate 7 to sense the temperature changes in the electrical box 1 and control the operation of the motor 4 and the water system.

Working principle: When the utility model is in use, when the temperature sensor 9 senses that the temperature in the electrical box 1 is too high, the motor 4 drives the fan 5 to rotate, so that air enters the electrical box 1 along the air inlet pipe 2, and the water in the cold water tank 11 enters the contact tube 14 through the outlet pipe 13. The air contacts the contact tube 14 to cool down, and then blows to each row of installed electronic devices through the vent 8. The hot water in the contact tube 14 is recovered to the cooling box 12 through the return pipe 15 by the water pump in the cooling box 12. After the cooling box 12 cools the water, it returns to the cold water tank 11 along the replenishing pipe 18. The bent plate 25 collects rainwater flowing down from the rain shield 20, and the first inclined chute 21 controls the rainwater to flow into the collection pipe 26 through the water inlet 23. After being collected by the collecting pipe 27, it enters the cooling box 12 through the connecting pipe 29. The first filter screen 24 filters large impurities in the rainwater, and the second filter screen 30 adsorbs the rainwater.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Although the 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 (6)

1. An electrical protection device for a power plant, comprising an electrical box (1), characterized in that: an air inlet pipe (2) is fixedly connected to one side of the electrical box (1), a mounting frame (3) is fixedly connected to the inside of the air inlet pipe (2), a motor (4) is fixedly connected to the upper part of the mounting frame (3), a fan (5) is fixedly connected to the power end of the motor (4), isolation nets (6) are fixedly connected to both ends of the air inlet pipe (2), an isolation plate (7) is fixedly connected to the side of the electrical box (1) close to the air inlet pipe (2), and the isolation plate (7) A plurality of ventilation holes (8) are provided inside, a plurality of air outlets (16) are provided on a side of the electrical box (1) away from the air inlet pipe (2), four groups of first support rods (10) are fixedly connected to the upper part of the electrical box (1), the upper parts of the two groups of the first support rods (10) on the rear side are fixedly connected to a cold water tank (11), the lower part of the cold water tank (11) is fixedly connected to a water outlet pipe (13), the water outlet pipe (13) penetrates the electrical box (1) and is fixedly connected to a contact pipe (14), and the contact pipe (14) is directly opposite to the air inlet pipe (2). 2. An electrical protection device for a power plant according to claim 1, characterized in that: the other end of the contact tube (14) is fixedly connected to a return pipe (15), the upper parts of the two front groups of the first support rods (10) are fixedly connected to a cooling box (12), the upper part of the return pipe (15) penetrates into the interior of the cooling box (12), and a supplementary pipe (18) is fixedly connected between the cooling box (12) and the side of the cold water tank (11) away from the contact tube (14). 3. An electrical protection device for a power plant according to claim 2, characterized in that: the cooling box (12) and the upper part of the cold water tank (11) are fixedly connected with a second support rod (19), the top of the second support rod (19) is fixedly connected with a rain shield (20), and bent plates (25) are fixedly connected on both sides of the rain shield (20), and first inclined grooves (21) are arranged at the lower parts of both ends of the rain shield (20), and a shielding plate (22) is fixedly connected to the upper part of the first inclined groove (21), and a water outlet (23) is opened at the lower part of the first inclined groove (21) near the lower part, and a collecting pipe (26) is fixedly connected to the lower part of the rain shield (20) opposite to the water outlet (23), and a collecting pipe (27) is fixedly connected between the front and rear collecting pipes (26), and a second inclined groove (28) is arranged inside the collecting pipe (27), and a connecting pipe (29) is fixedly connected between the front collecting pipe (26) and the cooling box (12). 4. An electrical protection device for a power plant according to claim 3, characterized in that a first filter screen (24) is slidably connected inside the water inlet (23), and a second filter screen (30) is fixedly connected inside the connecting pipe (29) near the cooling box (12). 5. An electrical protection device for a power plant according to claim 2, characterized in that fins (17) are provided on the outer wall of the cooling box (12). 6. An electrical protection device for a power plant according to claim 1, characterized in that a temperature sensor (9) is fixedly connected to the inner wall of the electrical box (1) on the side away from the isolation plate (7).