Electric power filtering device

Abstract

The utility model relates to the technical field of electric power equipment, and discloses an electric power filtering device, which comprises an electric power filtering cabinet main body, the inner wall of the electric power filtering cabinet main body is fixedly connected with a hollow box, and the inner wall of the hollow box is fixedly connected with a first partition plate and a second partition plate. The outer wall of the first partition plate and the outer wall of the second partition plate are jointly and fixedly connected with a plurality of vortex tubes and flow guide tubes in a sleeving mode, the bottom ends of the vortex tubes fixedly communicate with metal coil pipes, the bottom ends of the metal coil pipes penetrate through the hollow box and the outer wall of the electric power filtering cabinet body, and the outer wall of the hollow box is fixedly connected with an air pump. The output end of the air pump fixedly communicates with a bent pipe, and the bottom end of the bent pipe fixedly communicates with a three-way pipe. According to the utility model, the electric power filtering device has the function of preventing low-temperature icing and frosting, and safe and reliable operation of metal conductive parts in the electric power filtering cabinet is ensured, so that the service life and reliability of the electric power filtering device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment, in particular to a power filter device. Background Art

[0002] Power filtering refers to the process of suppressing or eliminating harmonics in the power system through certain technical means. Power filter cabinets are often used in power systems to process harmonics. Power filter cabinets mainly use capacitors, inductors, resistors and other components to filter out or attenuate harmonics in the power system.

[0003] At present, in the power system of construction sites, the power filter cabinet is generally installed outdoors, and due to the heat dissipation demand, the power filter cabinet has many heat dissipation holes on its surface, resulting in poor sealing of the power filter cabinet. Especially in the low temperature environment at night in winter, moisture in the air is easy to condense on the metal conductive parts inside the power filter cabinet, and even cause two or more conductive metal parts to be connected due to the frost layer, resulting in a short circuit in the line, and even a safety accident, affecting the service life and reliability of the power filter cabinet.

[0004] To this end, we propose a power filtering device to solve the above problems. Utility Model Content

[0005] The utility model aims to propose a power filter device in view of the above problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A power filtering device comprises a power filter cabinet body, the inner wall of the power filter cabinet body is fixedly connected with a hollow box, the inner wall of the hollow box is fixedly connected with a first partition and a second partition, the outer walls of the first partition and the second partition are jointly fixedly sleeved with a plurality of vortex tubes and a guide tube, the bottom ends of the plurality of vortex tubes are fixedly connected with a metal coil, the bottom end of the metal coil passes through the hollow box and the outer wall of the power filter cabinet body, the outer wall of the hollow box is fixedly connected with an air pump, the output end of the air pump is fixedly connected with a bent pipe, the bottom end of the bent pipe is fixedly connected with a three-way pipe, one output end of the three-way pipe passes through the inner wall of the hollow box, the other output end of the three-way pipe is fixedly connected with a conduit, the bottom end of the conduit passes through the outer wall of the bottom end of the hollow box, the top of the hollow box is fixedly connected with a plurality of air outlet pipes, the outer wall of the hollow box is fixedly connected with a control mechanism, and the bottom end of the hollow box is fixedly connected with a drainage component.

[0008] Preferably, the control mechanism includes a control component and a temperature sensor component fixedly connected to the outer wall of the hollow box.

[0009] Preferably, the drainage assembly includes a hose fixedly connected to the bottom end of the hollow box, the bottom end of the hose passes through the outer wall of the power filter cabinet body and is fixedly connected to a solenoid valve.

[0010] Preferably, the first partition and the second partition divide the inner space of the hollow box into a heating zone, an air intake zone and a low-temperature zone.

[0011] Preferably, two symmetrically distributed metal mesh plates are fixedly connected to the outer surfaces of the plurality of metal coils.

[0012] Preferably, the outlet ends of the plurality of metal coils are commonly and fixedly connected with a filter screen plate.

[0013] Compared with the prior art, the utility model provides a power filter device, which has the following beneficial effects:

[0014] 1. The power filter device is provided with a vortex tube, a control mechanism, an air pump and a guide pipe. When the outdoor power filter cabinet is in a low temperature environment at night, the control mechanism first controls the air pump to start and close the solenoid valve, and then part of the air is transported to the vortex tube, and the other part of the air is transported to the low temperature zone. Then, a hot cavity and low-temperature air are respectively generated at both ends of the vortex tube, and the low-temperature air enters the metal coil. After the air in the low-temperature zone passes through the low-temperature metal coil, the moisture in the air condenses and separates, and then the relatively dry air is transported to the heating zone through the guide pipe for heating. The heated dry hot air is then ejected through the outlet pipe, thereby increasing the temperature inside the power filter cabinet and reducing the humidity, thereby avoiding the safety of the power filter cabinet at night in winter. The mechanism enables the power filter device to have the function of preventing low-temperature frost, ensuring the safe and reliable operation of the metal conductive parts inside the power filter cabinet, thereby improving the service life and reliability of the power filter device.

[0015] 2. The power filter device has a drainage component. When the temperature rises during the day, the control component receives the signal from the temperature sensor component to shut down the air pump and the solenoid valve. At the same time, the water condensed on the surface of the metal coil melts, and the melted water is discharged through the hose and the solenoid valve that is opened when the power is turned off, so as to avoid the accumulation of water at the bottom of the hollow box and interfere with its reuse. This mechanism can improve the reliability of the operation of the power filter device.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model enables the power filter device to have the function of preventing low-temperature frost and ice, ensuring the safe and reliable operation of the metal conductive parts inside the power filter cabinet, thereby improving the service life and reliability of the power filter device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a power filter device proposed by the utility model;

[0018] Figure 2 The present invention is a partially enlarged structural diagram of a power filter device proposed by the present invention.

[0019] In the figure: 1. Power filter cabinet body; 2. Hollow box; 3. First partition; 4. Second partition; 5. Vortex tube; 6. Guide tube; 7. Metal coil; 8. Air pump; 9. Control mechanism; 91. Control component; 92. Temperature sensor component; 10. Bend pipe; 11. Tee pipe; 12. Conduit; 13. Air outlet pipe; 14. Hose; 15. Solenoid valve; 16. Heating zone; 17. Air inlet zone; 18. Low temperature zone; 19. Metal mesh plate; 20. Filter mesh plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-2 A power filter device includes a power filter cabinet body 1, the inner wall of the power filter cabinet body 1 is fixedly connected with a hollow box 2, the inner wall of the hollow box 2 is fixedly connected with a first partition 3 and a second partition 4, the first partition 3 and the second partition 4 divide the internal space of the hollow box 2 into a heating zone 16, an air intake zone 17 and a low temperature zone 18, the outer walls of the first partition 3 and the second partition 4 are jointly fixedly sleeved with a plurality of vortex tubes 5 and a guide tube 6, the bottom ends of the plurality of vortex tubes 5 are fixedly connected with a metal coil 7, the bottom ends of the metal coil 7 pass through the outer wall of the hollow box 2 and the power filter cabinet body 1, the outer wall of the hollow box 2 is fixedly connected with an air pump 8, and the air pump The output end of 8 is fixedly connected with a bend pipe 10, the bottom end of the bend pipe 10 is fixedly connected with a three-way pipe 11, one output end of the three-way pipe 11 passes through the inner wall of the hollow box 2, the other output end of the three-way pipe 11 is fixedly connected with a conduit 12, the bottom end of the conduit 12 passes through the bottom outer wall of the hollow box 2, the top of the hollow box 2 is fixedly connected with a plurality of air outlet pipes 13, the outer wall of the hollow box 2 is fixedly connected with a control mechanism 9, the bottom end of the hollow box 2 is fixedly connected with a drainage component, the drainage component includes a hose 14 fixedly connected to the bottom end of the hollow box 2, the bottom end of the hose 14 passes through the outer wall of the power filter cabinet body 1, and is fixedly connected with a solenoid valve 15.

[0022] The outer surfaces of the multiple metal coils 7 are commonly fixedly connected with two symmetrically distributed metal mesh plates 19, which can increase the air dehumidification area of ​​the metal coils 7. The outlet ends of the multiple metal coils 7 are commonly fixedly connected with a filter mesh plate 20, which can prevent external impurities from entering the interior of the metal coils 7.

[0023] The control mechanism 9 includes a control component 91 and a temperature sensing component 92 fixedly connected to the outer wall of the hollow box 2. The control component 91 is a PLC controller, and the temperature sensing component 92 is a temperature sensor. The air pump 8 and the solenoid valve 15 are electrically connected to the output end of the control component 91 through wires, and the temperature sensing component 92 is electrically connected to the input end of the control component 91 through wires. This electrical connection is a prior art and is a commonly used technical means by people in this field, so it will not be elaborated on.

[0024] In the utility model, when the outdoor power filter cabinet is in a low temperature environment at night, first, the temperature difference sensor component detects the low temperature environment and sends a signal to the control component 91. The control component 91 controls the air pump 8 to start and close the solenoid valve 15. The air pump 8 delivers air to the three-way pipe 11, and a part of the air enters the air intake area 17 through the three-way pipe 11 and enters the vortex tube 5. At this time, the air is processed by the vortex tube 5, and part of the air is discharged into the heating area 16 through the hot end of the vortex tube 5, and the temperature of the air is 30-35 degrees Celsius, and the temperature of the heating area 16 is increased. The remaining part of the air is discharged from the cold end of the vortex tube 5 into the metal coil 7, and the temperature of the cold end air is between -15 and -20 degrees Celsius, and the surface temperature of the metal coil 7 is reduced. Then, another part of the air in the three-way pipe 11 is delivered to the low temperature area 18 through the conduit 12. The air passes through the After the low-temperature metal coil 7, the moisture in the air condenses and separates, and then the relatively dry air is transported to the heating area 16 for heating through the guide pipe 6, and the heated dry hot air is ejected through the exhaust pipe 13, thereby increasing the temperature inside the power filter cabinet and reducing the humidity, thereby avoiding the safety of the power filter cabinet at night in winter. When the temperature rises during the day, the control component 91 receives the signal of the temperature sensor component 92 to shut down the air pump 8 and the solenoid valve 15, and at the same time, the moisture condensed on the surface of the metal coil 7 melts, and the melted water is discharged through the hose 14 and the solenoid valve 15 that is opened by power failure, thereby avoiding the accumulation of moisture at the bottom of the hollow box 2 and interfering with its reuse. This mechanism enables the power filter device to have the function of preventing low-temperature frost, ensuring the safe and reliable operation of the metal conductive components inside the power filter cabinet, thereby improving the service life and reliability of the power filter device.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power filter device, comprising a power filter cabinet body (1), characterized in that: The inner wall of the power filter cabinet body (1) is fixedly connected to a hollow box (2), the inner wall of the hollow box (2) is fixedly connected to a first partition (3) and a second partition (4), the outer walls of the first partition (3) and the second partition (4) are jointly fixedly sleeved with a plurality of vortex tubes (5) and flow guide tubes (6), the bottom ends of the plurality of vortex tubes (5) are fixedly connected to a metal coil (7), the bottom ends of the metal coil (7) pass through the outer wall of the hollow box (2) and the power filter cabinet body (1), the outer wall of the hollow box (2) is fixedly connected to an air pump (8), and the air pump (8) ) is fixedly connected to an output end thereof with a curved pipe (10), the bottom end of the curved pipe (10) is fixedly connected to a three-way pipe (11), one output end of the three-way pipe (11) passes through the inner wall of the hollow box (2), the other output end of the three-way pipe (11) is fixedly connected to a conduit (12), the bottom end of the conduit (12) passes through the outer wall of the bottom end of the hollow box (2), the top end of the hollow box (2) is fixedly connected to a plurality of air outlet pipes (13), the outer wall of the hollow box (2) is fixedly connected to a control mechanism (9), and the bottom end of the hollow box (2) is fixedly connected to a drainage component.

2. A power filter device according to claim 1, characterized in that: The control mechanism (9) comprises a control component (91) fixedly connected to the outer wall of the hollow box (2) and a temperature sensing component (92).

3. A power filter device according to claim 1, characterized in that: The drainage assembly comprises a hose (14) fixedly connected to the bottom end of the hollow box (2); the bottom end of the hose (14) passes through the outer wall of the power filter cabinet body (1) and is fixedly connected to a solenoid valve (15).

4. The power filter device according to claim 1, characterized in that: The first partition plate (3) and the second partition plate (4) divide the internal space of the hollow box (2) into a heating zone (16), an air intake zone (17) and a low temperature zone (18).

5. The power filter device according to claim 1, characterized in that: Two symmetrically distributed metal mesh plates (19) are fixedly connected to the outer surfaces of the plurality of metal coils (7).

6. The power filter device according to claim 1, characterized in that: The outlet ends of the plurality of metal coils (7) are commonly and fixedly connected with a filter screen plate (20).

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