Capacitance compensation cabinet with ventilation device

Abstract

The utility model relates to the technical field of capacitance compensation cabinets, and discloses a capacitance compensation cabinet with a ventilation device, which comprises a cabinet body, a stable transverse plate is fixedly mounted on the lower surface of the cabinet body, a sealing door plate is arranged on the front surface of the cabinet body, and a filtering air inlet device is fixedly mounted at the bottom of the cabinet body. An oval ventilation pipe is fixedly installed on the top of the inner wall of the cabinet body, and a circular fixing pipe is fixedly installed on the inner wall of the oval ventilation pipe. According to the utility model, the rotating motor in the filtering air inlet device drives the rotating fan blades to suck external air, and the external air is conveyed into the cabinet body after being subjected to multi-stage filtering, so that sufficient cold air is provided for internal equipment. And meanwhile, the driving motor at the top drives the rotating fan blades to suck out the hot air in the cabinet body and discharge the hot air to the outside. By means of the air inlet and air outlet circulation design, heat in the cabinet body can be quickly and effectively dissipated out, the equipment fault occurrence rate caused by too high temperature is remarkably reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of capacitor compensation cabinets, specifically a capacitor compensation cabinet with a ventilation device. Background Technology

[0002] In power systems, capacitor banks are widely used reactive power compensation devices. Their main function is to improve the power factor, reduce power loss, and improve power quality. However, during operation, the capacitor banks generate a large amount of heat from their internal components such as capacitors and reactors. If this heat cannot be dissipated in time, the internal temperature of the bank will rise sharply. Excessive temperature accelerates the aging of electrical components, reduces their insulation performance, increases the probability of failure, and in severe cases, may even cause fires and other safety accidents, posing a significant threat to the stable operation of the power system.

[0003] Currently, the ventilation and heat dissipation designs of some capacitor compensation cabinets on the market are relatively simple, typically relying solely on natural ventilation or simple fans for heat dissipation. Natural ventilation is greatly affected by environmental factors and has low heat dissipation efficiency, making it difficult to meet heat dissipation requirements in high-temperature environments or when the capacitor compensation cabinet is operating under high load. While simple fan ventilation can increase airflow speed to some extent, it lacks effective filtration measures, allowing a large amount of dust and impurities to enter the cabinet with the air. This dust adheres to the surface of electrical components, affecting their heat dissipation and potentially causing electrical short circuits and other malfunctions, further reducing the reliability and lifespan of the capacitor compensation cabinet.

[0004] Furthermore, the filter components of some existing capacitor compensation cabinet ventilation devices are not easy to disassemble and replace. After prolonged use, a large amount of dust accumulates on the filter components, leading to increased ventilation resistance and reduced ventilation efficiency. Cleaning or replacing the filter components is cumbersome and requires a significant amount of time and manpower, causing considerable inconvenience to equipment maintenance and management. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In order to overcome the above-mentioned defects of the prior art, this utility model provides a capacitor compensation cabinet with a ventilation device, which solves the problem that the heat dissipation method of the cabinet is prone to causing a large amount of dust to enter. The accumulation of dust greatly affects the normal heat dissipation, which is not conducive to better heat dissipation operation of the cabinet and reduces the convenience of use.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a capacitor compensation cabinet with a ventilation device, comprising a cabinet body, a stabilizing horizontal plate fixedly installed on the lower surface of the cabinet body, a sealing door panel on the front of the cabinet body, a filter air inlet device fixedly installed at the bottom of the cabinet body, an elliptical ventilation pipe fixedly installed at the top of the inner wall of the cabinet body, a circular fixed pipe fixedly installed on the inner wall of the elliptical ventilation pipe, a drive motor fixedly installed on the inner wall of the circular fixed pipe, a rotating fan blade fixedly installed at the output end of the drive motor, a filter disc fixedly installed on the inner wall of the circular fixed pipe, a fan-shaped filter plate fixedly installed on the inner wall of the circular fixed pipe, and a multi-layer filter plate fixedly installed on the inner wall of the circular fixed pipe. The number of filter discs is two sets, and multiple sets of filter through holes are opened on the inner side of both sets of filter discs.

[0009] As a further embodiment of this utility model: the air filtration device includes a rectangular frame fixedly installed at the bottom of the cabinet, an installation pipe fixedly installed on the inner wall of the rectangular frame, a rotating motor fixedly installed on the inner wall of the installation pipe, a rotating fan blade fixedly installed at the output end of the rotating motor, a sealing cover plate provided on the upper surface of the rectangular frame, and a first filter plate, a second filter plate and a third filter plate fixedly installed on the lower surface of the sealing cover plate respectively.

[0010] As a further embodiment of this utility model: an operating handle is fixedly installed on the upper surface of the sealing cover, and the outer surface of the operating handle is provided with friction anti-slip texture.

[0011] As a further embodiment of this utility model: a rectangular through hole is provided on the upper surface of the rectangular frame, and the size of the rectangular through hole is adapted to the size of the sealing cover plate.

[0012] As a further embodiment of this utility model: multiple sets of elongated ventilation holes are opened in the middle of the outer surface of the circular fixed tube, and the length of the elongated ventilation holes is 120 mm.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] High-efficiency heat dissipation: This invention achieves efficient ventilation and heat dissipation through the coordinated operation of the bottom-mounted filter air intake device 4 and the top ventilation structure. The rotating motor 403 in the filter air intake device 4 drives the rotating fan blades 404 to draw in outside air, which is then filtered through multiple stages and delivered into the cabinet 1, providing ample cool air for the internal equipment. Simultaneously, the top-mounted drive motor 7 drives the rotating fan blades 8 to draw out hot air from the cabinet 1 and expel it to the outside. This circulating air intake and exhaust design greatly improves airflow efficiency, quickly and effectively dissipating heat from the cabinet 1, ensuring the equipment operates in a suitable temperature environment, significantly reducing the equipment failure rate caused by overheating, and extending the equipment's service life.

[0016] Multi-stage air filtration: The air intake device 4 is equipped with a first filter plate 406, a second filter plate 407, and a third filter plate 408 to perform multi-stage filtration on the intake air. The first filter plate 406 can filter out larger dust particles, the second filter plate 407 further filters out smaller dust particles, and the third filter plate 408 performs even finer filtration. In the top ventilation structure, the circular filter plate 9, the fan-shaped filter plate 10, and the multi-layer filter plate 11 also perform multi-stage filtration on the exhaust hot air. Through this multi-stage filtration design, dust, impurities, and other pollutants in the air can be effectively removed, ensuring the cleanliness of the air entering and exiting the cabinet 1, reducing dust damage to internal electrical components, lowering the probability of electrical short circuits and other faults caused by dust accumulation, and improving the reliability and stability of the capacitor compensation cabinet.

[0017] Easy maintenance: The sealing cover 405 of the filter air inlet device 4 is cleverly designed, with the first filter plate 406, the second filter plate 407, and the third filter plate 408 installed on its lower surface. When these filter plates need cleaning or replacement, the operator can easily pull the sealing cover 405, along with the filter plates, upwards by operating the handle with friction-resistant anti-slip texture on the sealing cover 405. The operation is simple and convenient. This greatly shortens maintenance time, reduces maintenance costs, improves equipment maintenance efficiency, and reduces damage to the equipment caused by untimely maintenance.

[0018] Improved airflow: Multiple sets of elongated ventilation holes, each 120 mm in length, are opened in the center of the outer surface of the circular fixed tube 6, effectively improving airflow. These ventilation holes allow hot air to exit more smoothly from the circular fixed tube 6, reducing air resistance in the ventilation structure, further enhancing ventilation and heat dissipation, and ensuring good air circulation inside the capacitor compensation cabinet.

[0019] Enhancing equipment stability: The stabilizing horizontal plate 2 fixedly installed on the lower surface of cabinet 1 increases the stability of the entire capacitor compensation cabinet when placed. It can effectively prevent the capacitor compensation cabinet from shaking or tipping over due to external factors (such as slight vibration, uneven ground, etc.) during operation, ensuring the safe operation of the equipment and providing a solid foundation for the stable operation of the capacitor compensation cabinet. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the vertical cross-section of the present invention;

[0022] Figure 3 This is an exploded view of the structure of the filter air inlet device of this utility model;

[0023] In the diagram: 1. Cabinet body; 2. Stabilizing horizontal plate; 3. Sealed door panel; 4. Filter air inlet device; 401. Rectangular frame; 402. Mounting round pipe; 403. Rotating motor; 404. Rotating fan blade; 405. Sealing cover plate; 406. First filter plate; 407. Second filter plate; 408. Third filter plate; 5. Elliptical ventilation pipe; 6. Circular fixed pipe; 7. Drive motor; 8. Rotating fan blade; 9. Filter round plate; 10. Fan-shaped filter plate; 11. Multi-layer filter plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] like Figure 1-3 As shown, this utility model provides a technical solution:

[0026] A capacitor compensation cabinet with a ventilation device includes a cabinet body 1. The cabinet body 1 serves as the main body of the entire device and is used to house the electrical equipment related to capacitor compensation.

[0027] A stabilizing horizontal plate 2 is fixedly installed on the lower surface of the cabinet 1. The function of the stabilizing horizontal plate 2 is to increase the stability of the cabinet 1 when it is placed, and to prevent it from shaking or tipping over due to external factors (such as slight vibration, uneven ground, etc.) during operation, so as to ensure the safe operation of the equipment.

[0028] The front of the cabinet 1 is equipped with a sealing door panel 3. The sealing door panel 3 facilitates the inspection and maintenance of the equipment inside the cabinet 1 by staff, and at the same time, it can effectively prevent dust, debris and other objects from entering the cabinet 1 when closed, protecting the internal equipment from the influence of the external environment.

[0029] A filter air intake device 4 is fixedly installed at the bottom of the cabinet 1. The main function of the filter air intake device 4 is to draw in outside air, filter it in multiple stages to remove dust and other impurities, and then deliver the clean air into the cabinet 1 to provide a good heat dissipation environment for the internal equipment.

[0030] An oval ventilation duct 5 is fixedly installed on the top of the inner wall of cabinet 1. The design of the oval ventilation duct 5 can better adapt to the internal spatial layout of cabinet 1, and its larger cross-sectional area can improve the air circulation efficiency.

[0031] A circular fixed pipe 6 is fixedly installed on the inner wall of the elliptical ventilation duct 5. The circular fixed pipe 6 provides a base and support structure for the internal drive motor 7, rotating fan blades 8, and various filter plates.

[0032] A drive motor 7 is fixedly installed on the inner wall of the circular fixed tube 6. The drive motor 7 serves as a power source, providing power for the rotation of the fan blades 8.

[0033] A rotating fan blade 8 is fixedly installed at the output end of the drive motor 7. Driven by the drive motor 7, the rotating fan blade 8 rotates at high speed, drawing out the hot air inside the cabinet 1 and discharging it to the outside through the subsequent filtration structure.

[0034] A circular filter plate 9 is fixedly installed on the inner wall of the circular fixed tube 6. There are two sets of filter plates 9, and multiple sets of filter through holes are opened on the inner surface of both sets of filter plates 9. The multiple sets of filter through holes on the inner surface of the two sets of filter plates 9 cooperate with each other. This design can perform preliminary filtration of dust and other impurities in hot air, and the cooperation of the through holes of the two sets of filter plates 9 can improve the filtration effect and make the exhaust air cleaner.

[0035] A sector-shaped filter plate 10 is fixedly installed on the inner wall of the circular fixed tube 6. The sector-shaped filter plate 10 further filters the air after it has been filtered by the circular filter plate 9, removing residual fine dust particles and improving the cleanliness of the air.

[0036] A multi-layer filter plate 11 is fixedly installed on the inner wall of the circular fixed tube 6. The multi-layer filter plate 11 is composed of multiple layers of filter materials of different materials and filtration precision, which can filter the air more finely and ensure that the discharged air meets the requirements of environmental protection and equipment operation.

[0037] Multiple sets of elongated ventilation holes, each 120 mm in length, are formed in the middle of the outer surface of the circular fixed tube 6. These elongated ventilation holes improve airflow, allowing hot air to escape more smoothly from the circular fixed tube 6.

[0038] The air filter intake device 4 includes a rectangular frame 401 fixedly installed at the bottom of the cabinet 1. The rectangular frame 401 provides a frame structure for mounting other components of the air filter intake device 4.

[0039] A mounting tube 402 is fixedly installed on the inner wall of the rectangular frame 401. The mounting tube 402 is used to install the rotating motor 403 and provide it with stable support.

[0040] A rotating motor 403 is fixedly installed on the inner wall of the mounting tube 402. The rotating motor 403 serves as the power source for the filter air intake device 4, driving the rotating fan blades 404 to rotate.

[0041] A rotating fan blade 404 is fixedly installed at the output end of the rotating motor 403. The rotating fan blade 404 rotates under the drive of the rotating motor 403, drawing external air into the rectangular frame 401.

[0042] A sealing cover plate 405 is provided on the upper surface of the rectangular frame 401. An operating handle is fixedly installed on the upper surface of the sealing cover plate 405, and the outer surface of the operating handle is provided with friction anti-slip texture. This design makes it convenient for operators to operate the sealing cover plate 405, while the friction anti-slip texture increases friction and improves the anti-slip effect, making operation safer and more convenient.

[0043] The lower surface of the sealing cover 405 is fixedly equipped with a first filter plate 406, a second filter plate 407, and a third filter plate 408. These three filter plates perform multi-stage filtration of the intake air. The first filter plate 406 can filter larger dust particles, the second filter plate 407 further filters smaller dust particles, and the third filter plate 408 performs finer filtration of the air to ensure that the air entering the cabinet 1 is clean.

[0044] The upper surface of the rectangular frame 401 has a rectangular through hole, the size of which is adapted to the size of the sealing cover 405. The rectangular through hole on the upper surface of the rectangular frame 401 and the sealing cover 405 cooperate with each other to facilitate better sealing and prevent unfiltered air from entering the cabinet 1 through gaps.

[0045] Working principle

[0046] Air intake and heat dissipation process: When cabinet 1 is in use, the internal electrical equipment generates a large amount of heat. At this time, the rotating motor 403 is started, and the output of the rotating motor 403 drives the rotating fan blades 404 to rotate at high speed. The rotation of the rotating fan blades 404 generates suction, drawing external air into the rectangular frame 401. The drawn-in air first passes through the first filter plate 406, which filters out larger dust particles. Then, the air continues to pass through the second filter plate 407, which further filters the air, removing smaller dust particles. Finally, the air passes through the third filter plate 408, which performs fine filtration, ensuring that the air entering cabinet 1 is clean. The air, after multi-stage filtration, is delivered into cabinet 1 to ventilate and dissipate heat for the internal equipment, reducing the equipment temperature and ensuring the normal operation of the equipment.

[0047] Air filtration process: Simultaneously, the drive motor 7 is started, and the output of the drive motor 7 drives the rotating fan blades 8 to rotate. The rotation of the fan blades 8 generates suction, drawing the hot air inside the cabinet 1 into the elliptical ventilation duct 5, and then into the circular fixed duct 6. The hot air first passes through the filter discs 9. The multiple sets of filter holes on the inner sides of the two sets of filter discs 9 work together to perform preliminary filtration of dust and other impurities in the hot air. Next, the air passes through the fan-shaped filter plate 10, which further removes residual fine dust particles. Finally, the air passes through the multi-layer filter plate 11, which performs more refined filtration to ensure that the air discharged to the outside is clean and meets environmental protection requirements.

[0048] Filter plate cleaning and replacement process: After prolonged use, the surfaces of the first filter plate 406, second filter plate 407, and third filter plate 408 will accumulate a large amount of dust, affecting the filtration effect. Therefore, cleaning and replacement are necessary. Operators can use the handle on the sealing cover 405 to pull the first filter plate 406, second filter plate 407, and third filter plate 408 upwards, removing them from the rectangular frame 401 for cleaning or replacement. After cleaning or replacement, the sealing cover 405 is replaced back onto the rectangular frame 401 to ensure a proper seal.

[0049] Installation process

[0050] Installation of the stabilizing horizontal plate and sealing door panel: First, fix the stabilizing horizontal plate 2 to the lower surface of the cabinet 1 by welding or high-strength bolts. Ensure that the stabilizing horizontal plate 2 is installed flat and firmly connected to the cabinet 1 to guarantee the stability of the entire capacitor compensation cabinet when placed. Next, install the sealing door panel 3 on the front of the cabinet 1 using hinges. Adjust the position of the hinges to allow the sealing door panel 3 to open and close flexibly, and to fit tightly against the cabinet 1 when closed, providing a good seal.

[0051] Installation of the air inlet filter: Securely install the rectangular frame 401 at the bottom of cabinet 1 using bolts to ensure stability. Install the mounting tube 402 on the inner wall of the rectangular frame 401 using welding or bolts. Then, install the rotating motor 403 on the inner wall of the mounting tube 402, ensuring accurate positioning and smooth connection of its output shaft to the rotating fan blade 404. Install the rotating fan blade 404 at the output end of the rotating motor 403 and tighten the nut to prevent loosening during rotation. Finally, install the first filter plate 406, the second filter plate 407, and the third filter plate 408 on the lower surface of the sealing cover 405 using slots or bolts to ensure secure installation.

[0052] Top ventilation structure installation: Install the elliptical ventilation duct 5 on the top of the inner wall of cabinet 1. Use brackets for fixation to ensure accurate positioning and tight fit with the inner wall of cabinet 1. Install the circular fixing tube 6 on the inner wall of the elliptical ventilation duct 5, also using brackets for fixation. Install the drive motor 7 on the inner wall of the circular fixing tube 6, securing it with bolts to ensure stable positioning. Install the rotating fan blade 8 on the output end of the drive motor 7 and tighten with nuts. Install the filter disc 9, fan-shaped filter plate 10, and multi-layer filter plate 11 sequentially on the inner wall of the circular fixing tube 6. Use slots or bolts for fixation to ensure secure installation and reasonable spacing between filter plates to avoid obstructing airflow.

[0053] Debugging process

[0054] Electrical connection check: After installation, first check whether the electrical connection between the rotating motor 403 and the drive motor 7 is correct. Check whether the power cord is securely connected and whether there are any loose connections, short circuits, etc. Use a multimeter or other tools to measure the insulation resistance of the motor to ensure that the motor has good insulation performance.

[0055] Motor test run: Connect the power supply and start both the rotating motor 403 and the drive motor 7, observing their rotation. Check if the motors can start normally, if the rotation direction is correct, and if there is any abnormal noise or vibration. If any abnormality is found, stop operation immediately, check the cause of the fault, and troubleshoot it.

[0056] Ventilation performance test: With the motor running normally, test the ventilation performance. Use an anemometer to measure the air velocity drawn in by the filter intake device 4 and the air velocity exhausted by the top ventilation structure to ensure that the ventilation volume meets the design requirements. At the same time, observe the temperature changes inside cabinet 1 and use a thermometer to measure the temperature at different locations to check whether the ventilation and heat dissipation effect is good.

[0057] Filtration performance test: After the ventilation system has been running for a period of time, check the filtration performance of the first filter plate 406, the second filter plate 407, the third filter plate 408, the circular filter plate 9, the fan-shaped filter plate 10, and the multi-layer filter plate 11. Observe the dust accumulation on the surface of the filter plates, and use a dust detector to detect the dust content of the incoming and outgoing air to ensure that the filtration performance meets the design requirements.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A capacitor compensation cabinet with ventilation device, comprising a cabinet body (1), a stable transverse plate (2) is fixedly installed on the lower surface of the cabinet body (1), and a sealing door plate (3) is arranged on the front surface of the cabinet body (1), characterized in that: The bottom of the cabinet body (1) is fixedly installed with a filtering air inlet device (4), the top of the inner wall of the cabinet body (1) is fixedly installed with an oval ventilation pipe (5), the inner wall of the oval ventilation pipe (5) is fixedly installed with a circular fixed pipe (6), the inner wall of the circular fixed pipe (6) is fixedly installed with a driving motor (7), the output end of the driving motor (7) is fixedly installed with a rotating fan blade (8), the inner wall of the circular fixed pipe (6) is fixedly installed with a filtering disc (9), the inner wall of the circular fixed pipe (6) is fixedly installed with a fan-shaped filtering plate (10), the inner wall of the circular fixed pipe (6) is fixedly installed with a plurality of layers of filtering plates (11), the filtering disc (9) is in two groups, and a plurality of filtering through holes are formed in the inner side surfaces of the two groups of filtering discs (9).

2. A capacitor-compensated cabinet with a ventilation device according to claim 1, characterized in that: The filtering air inlet device (4) comprises a rectangular frame (401) fixedly installed at the bottom of the cabinet body (1), the inner wall of the rectangular frame (401) is fixedly installed with a mounting circular pipe (402), the inner wall of the mounting circular pipe (402) is fixedly installed with a rotating motor (403), the output end of the rotating motor (403) is fixedly installed with a rotating fan blade (404), the upper surface of the rectangular frame (401) is provided with a sealing cover plate (405), and the lower surface of the sealing cover plate (405) is fixedly installed with a first filtering plate (406), a second filtering plate (407) and a third filtering plate (408) respectively.

3. A capacitor-compensated cabinet with a ventilation device according to claim 2, characterized in that: The upper surface of the sealing cover plate (405) is fixedly installed with an operating handle, and the outer surface of the operating handle is provided with a friction anti-skid pattern.

4. A capacitor-compensated cabinet with a ventilation device according to claim 3, characterized in that: The upper surface of the rectangular frame (401) is provided with a rectangular through hole, and the size of the rectangular through hole is matched with the size of the sealing cover plate (405).

5. A capacitor-compensated cabinet with a ventilation device according to claim 4, characterized in that: A plurality of long strip-shaped ventilation holes are formed in the middle portion of the outer surface of the circular fixed pipe (6), and the length of the long strip-shaped ventilation hole is 120mm.

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