Cooling and positive-pressure dust removal system for power equipment

Abstract

The invention provides a power equipment cooling positive pressure dust removal system, the power equipment cooling positive pressure dust removal system comprises an air duct, a dust removal filter assembly, a temperature control dehydration assembly and an air supply fan, the air duct is provided with an inlet and an outlet, the outlet is communicated with a power equipment chamber, the dust removal filter assembly comprises a plurality of filter screens, and the filter screens are arranged at the inlet at intervals; the temperature control dehydration assembly comprises a heat exchanger which is arranged in the air duct; the air supply fan is arranged in the air channel and located behind the heat exchanger in the air flowing direction in the air channel. The cooling positive-pressure dust removal system for the power equipment has the characteristics of dust removal and filtration, accurate temperature control and dehydration, efficient air supply and the like, and provides powerful guarantee for safe and stable operation of the power equipment.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation of electric power equipment, and in particular to a temperature-lowering positive-pressure dust removal system for electric power equipment. Background Art

[0002] During the operation of power equipment, high temperature, dust accumulation and negative pressure in the equipment room are the three major challenges commonly faced by the power industry. These problems not only affect the normal operation of the equipment, but may also cause safety hazards and reduce the overall efficiency of the system. In the relevant technologies, most of them only propose solutions to a single problem, which makes it difficult to achieve comprehensive optimization. For example, some technologies focus on dust prevention, reducing dust entry by enhancing the airtightness of the equipment room; some technologies focus on cooling measures, such as using air conditioners or fans to reduce the temperature in the equipment room. However, when dealing with the problems of high temperature, dust accumulation and negative pressure in the power equipment room, these technologies can often only solve one of the aspects, while sacrificing the performance of other aspects, and cannot achieve effective improvements in the three aspects of cooling, dust removal and ventilation. Summary of the invention

[0003] The present invention is based on the inventor's discovery and understanding of the following facts and problems:

[0004] During the operation of power equipment, the maintenance of the equipment room environment is a key factor in ensuring the stable operation of the equipment, extending its service life, and ensuring the overall efficiency of the power system. However, high temperature, dust accumulation, and negative pressure problems in the equipment room have always been major challenges faced by the power industry. These problems not only directly affect the normal operation of power equipment, but may also cause a series of safety hazards and reduce the operating efficiency of the entire power system.

[0005] In response to the above challenges, a variety of related technologies have been developed, but most of these technologies only provide solutions to a single problem and it is difficult to achieve comprehensive optimization. Specifically, some technologies focus on dust prevention and reduce the entry of dust by enhancing the airtightness of the equipment room. The advantage of this method is that it can effectively prevent dust accumulation and protect electrical equipment from dust. However, the enhancement of airtightness also leads to an increase in the temperature inside the equipment room. Due to the lack of sufficient ventilation to dissipate heat, a long-term high temperature environment will accelerate the aging of the equipment and reduce its performance and life.

[0006] On the other hand, some technologies focus on cooling measures, such as using air conditioners or fans to reduce the temperature in the equipment room. Although these cooling devices can effectively alleviate the high temperature problem, the negative pressure effect generated by them will aggravate the adsorption of dust. Especially near the heat dissipation and ventilation ports of the equipment, due to the negative pressure, dust is more likely to be sucked into the equipment room and accumulate on the surface and inside of the power equipment, seriously affecting the heat dissipation function of the equipment and even causing equipment overheating failure.

[0007] That is to say, some technologies often have the problem of losing sight of one thing while dealing with the problems of high temperature, dust accumulation and negative pressure in power equipment rooms. Although dust prevention can reduce dust accumulation, it will cause the temperature to rise; while cooling measures can alleviate the high temperature problem, they will aggravate the adsorption of dust.

[0008] To this end, an embodiment of the present invention provides a positive pressure dust removal system for cooling power equipment, which includes:

[0009] An air duct, the air duct having an inlet and an outlet, the outlet being connected to the power equipment room;

[0010] A dust removal filter assembly, the dust removal filter assembly comprising a plurality of filter screens, wherein the plurality of filter screens are arranged at intervals at the inlet;

[0011] A temperature control and dehydration component, wherein the temperature control and dehydration component comprises a heat exchanger, and the heat exchanger is arranged in the air duct;

[0012] An air supply fan is disposed in the air duct, and the air supply fan is located behind the heat exchanger in the gas flow direction in the air duct.

[0013] In summary, the positive-pressure dust removal system for cooling power equipment provided in the embodiment of the present invention has the characteristics of dust removal and filtration, precise temperature control and dehydration, and efficient air supply. It can comprehensively solve the problems of cooling, dust removal and ventilation in the power equipment room, and provide a strong guarantee for the safe and stable operation of the power equipment.

[0014] In some embodiments, the dust removal and filtering assembly includes a first sliding frame, a second sliding frame and a dust blowing fan, the first sliding frame is movable relative to the filter along a first direction, the second sliding frame is mounted on the first sliding frame and is movable along a second direction perpendicular to the first direction, the dust blowing fan is mounted on the second sliding frame, and the air outlet of the dust blowing fan is arranged toward the filter.

[0015] In some embodiments, the dust removal and filtering assembly includes an adjustable air nozzle, which is rotatably disposed on the dust blowing fan, and the adjustable air nozzle is used to adjust the air outlet direction of the dust blowing fan.

[0016] In some embodiments, the heat exchanger includes a first pipeline and a second pipeline arranged side by side, at least one of the first pipeline and the second pipeline is provided with a heat dissipation fin, and the first pipeline and the second pipeline are arranged in countercurrent.

[0017] In some embodiments, the power equipment cooling positive pressure dust removal system further includes a demagnetization component, and the demagnetization component is located between the heat exchanger and the filter in the gas flow direction in the air duct.

[0018] In some embodiments, the demagnetization component includes a magnetic generator and a magnetic field regulator connected to the magnetic generator, wherein the magnetic field regulator is used to adjust the magnetic field strength and direction of the magnetic field emitted by the magnetic generator.

[0019] In some embodiments, the power equipment cooling positive pressure dust removal system also includes a secondary pressurization fan, which is arranged in the air duct and is located on the rear side of the air supply fan in the gas flow direction in the air duct.

[0020] In some embodiments, a frequency converter box is provided in the power equipment room, and the air duct includes a first air supply section and a second air supply section, the first air supply section is connected to the frequency converter box, and the second air supply section is connected to the indoor space of the power equipment room.

[0021] In some embodiments, a temperature and humidity monitor and a controller are also included. The temperature and humidity monitor, dust removal and filtering components, temperature control and dehydration components, the air supply fan and the controller are electrically connected. The temperature and humidity monitor is arranged in the power equipment room. The temperature and humidity monitor is used to monitor the temperature and humidity changes in the power equipment room and send the temperature and humidity changes to the controller. The controller is used to control the operation of the dust removal and filtering components, the temperature control and dehydration components, and the air supply fan according to the temperature and humidity changes collected by the temperature and humidity monitor.

[0022] In some embodiments, a damper and a drive motor are provided at the outlet of the air duct, the drive motor is electrically connected to the controller, and the drive motor is used to control the damper to rotate in the air duct to open and close the air duct outlet according to instructions issued by the controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a positive-pressure dust removal system for cooling power equipment provided in an embodiment of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the coordination between the power equipment cooling positive pressure dust removal system and the power equipment room provided by an embodiment of the present invention.

[0025] Figure 3 It is a structural schematic diagram of the power equipment cooling positive pressure dust removal system and the power equipment room at another angle provided by an embodiment of the present invention.

[0026] Reference numerals: 100, power equipment room; 110, frequency converter box;

[0027] 10. Box body; 11. Air duct; 111. Inlet; 112. Outlet;

[0028] 20. Dust removal and filtering assembly; 21. Filter screen; 22. First sliding frame; 23. Second sliding frame; 24. Dust blowing fan; 25. Low voltage inverter and PLC controller;

[0029] 30. Temperature control and dehydration component; 31. Heat exchanger; 311. First pipeline; 312. Second pipeline; 32. Compressor;

[0030] 40. air supply fan; 41. impeller; 42. coupling; 43. motor;

[0031] 50. Demagnetization components;

[0032] 60. Secondary pressure fan;

[0033] 70. Temperature and humidity monitor;

[0034] 80. Air door;

[0035] 90. Exhaust fan. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present invention provides a positive-pressure dust removal system for cooling electric equipment, which includes an air duct 11, a dust removal filter assembly 20, a temperature control and dehydration assembly 30 and an air supply fan 40. The air duct 11 has an inlet 111 and an outlet 112, and the outlet 112 is connected to the electric equipment room 100. The dust removal filter assembly 20 includes a plurality of filter screens 21, and the plurality of filter screens 21 are arranged at intervals at the inlet 111; the temperature control and dehydration assembly 30 includes a heat exchanger 31, and the heat exchanger 31 is arranged in the air duct 11; the air supply fan 40 is arranged in the air duct 11, and the air supply fan 40 is located behind the heat exchanger 31 in the gas flow direction in the air duct 11.

[0038] Specifically, the air duct 11 is the conveying channel of the entire system, and the outlet 112 of the air duct 11 is directly connected to the power equipment room 100, ensuring that the air processed by the system can be directly injected into the power equipment room 100 for environmental adjustment. A multi-layer filter 21 is arranged at the inlet 111 of the air duct 11, which can effectively block dust particles, pollen and other impurities in the outside air, ensuring that the air entering the power equipment room 100 is clean. The heat exchanger 31 is arranged inside the air duct 11, which can efficiently absorb or release heat from the air flowing through, realize precise control of the air temperature, and effectively remove excess moisture in the air while adjusting the temperature to prevent the power equipment from being damaged due to excessive humidity.

[0039] The air supply fan 40 is located downstream of the gas flow in the air duct 11, that is, behind the heat exchanger 31. This layout ensures that the air after temperature adjustment and dust removal can be sent into the power equipment room 100 at a stable flow rate and pressure under the powerful power of the air supply fan 40. The air supply fan 40 not only improves the overall efficiency of the system, but also ensures uniform air distribution in every corner of the power equipment room 100 through its precise air supply control, effectively avoiding the problem of local overheating or insufficient ventilation.

[0040] In summary, the positive-pressure dust removal system for cooling power equipment provided in the embodiment of the present invention has the characteristics of dust removal and filtration, precise temperature control and dehydration, and efficient air supply. It can comprehensively solve the problems of cooling, dust removal and ventilation in the power equipment room 100, and provide a strong guarantee for the safe and stable operation of the power equipment.

[0041] In this embodiment, the air duct 11 can be integrated in the box 10. The filter 21 can be set to two layers, which can be divided into a primary filter 21 and a high-efficiency filter 21. The primary filter 21 is used to intercept large particles, and the high-efficiency filter 21 is used to further filter tiny dust to ensure the quality of air entering the power equipment room 100.

[0042] Furthermore, the air supply fan 40 includes an impeller 41 , a coupling 42 and a motor 43 , and the coupling 42 is connected between the rotating shaft of the impeller 41 and the output shaft of the motor 43 .

[0043] In some embodiments, the dust removal filter assembly 20 includes a first sliding frame 22, a second sliding frame 23 and a dust blowing fan 24. The first sliding frame 22 is movable relative to the filter 21 along a first direction. The second sliding frame 23 is arranged on the first sliding frame 22, and the second sliding frame 23 is movable along a second direction perpendicular to the first direction. The dust blowing fan 24 is arranged on the second sliding frame 23, and the air outlet of the dust blowing fan 24 is arranged toward the filter 21, so that the dust blowing fan 24 can easily cover every corner of the filter 21, ensuring that the filter 21 always remains in a clean state, thereby maintaining the dust removal performance of the entire system.

[0044] Specifically, two slide rails may be provided in the air duct 11, and the slide rails are arranged in parallel along the first direction. The first sliding frame 22 is set as a door-shaped frame, and the two ends of the first sliding frame 22 can be slidably arranged on the slide rails correspondingly, so that the first sliding frame 22 can move relative to the filter screen 21 along the first direction. In this embodiment, the first direction can be set as a horizontal direction.

[0045] The second sliding frame 23 may include a threaded rod and a nut seat on the threaded rod, the two ends of the threaded rod are correspondingly connected to the first sliding frame 22, the nut seat is threadedly connected to the threaded rod, and the nut seat can move along the threaded rod during the rotation of the threaded rod, and the dust blowing fan 24 can be arranged on the nut seat. In this embodiment, the second direction can be set to a vertical direction.

[0046] Of course, the dust filter assembly 20 also includes a driver for driving the first sliding frame 22 and the second sliding frame 23 to move, and the driver can be set as a motor 43, a pneumatic motor, etc. In addition, the first sliding frame 22 and the second sliding frame 23 can also be set as other types of sliding mechanisms or transmission methods, such as a ball screw sliding structure, a linear guide structure, etc., which will not be repeated again.

[0047] Furthermore, a T-shaped slot is provided on the slide rail, and a T-shaped block matching the T-shaped slot is provided on the first sliding frame 22. The T-shaped block is slidably arranged in the T-shaped slot, so that the first sliding frame 22 can always maintain a vertical or parallel state with the slide rail when moving along the slide rail, thereby avoiding the problem of poor cleaning effect or system damage caused by shaking or tilting.

[0048] Furthermore, the dust removal filter assembly 20 includes an adjustable air nozzle, which is rotatably arranged on the dust blowing fan 24. The adjustable air nozzle is used to adjust the air outlet direction of the dust blowing fan 24 to ensure that the airflow can be accurately blown to every corner of the filter 21, and can also achieve all-round and multi-angle cleaning of the surface of the filter 21 through rotation, tilting and other actions.

[0049] In some embodiments, the dust removal and filtering assembly 20 also includes a low-voltage frequency converter and a PLC controller 25, which can be arranged on the first sliding frame 22 and / or the second sliding frame 23, and is used to control the operation of the first sliding frame 22, the second sliding frame 23 and the dust blowing fan 24.

[0050] In some embodiments, the heat exchanger 31 includes a first pipeline 311 and a second pipeline 312 arranged side by side, and at least one of the first pipeline 311 and the second pipeline 312 is provided with a heat dissipation fin. When the hot fluid flows in the pipeline, the heat dissipation fin can quickly transfer the heat to the external air or cooling medium, thereby achieving efficient heat exchange. In addition, the first pipeline 311 and the second pipeline 312 are arranged in a countercurrent manner, which helps to ensure that the heat obtained by the airflow after passing through the heat exchanger 31 is basically the same, thereby ensuring the constant temperature of the airflow.

[0051] Furthermore, the power equipment cooling positive pressure dust removal system also includes a compressor 32, which is connected to the heat exchanger 31 to realize the circulation of the refrigerant and heat exchange. When the temperature in the power equipment room 100 is too high, the compressor 32 starts and drives the refrigerant to circulate in the system. When passing through the heat exchanger 31, the cold released by the refrigerant is used to reduce the indoor temperature and absorb the indoor heat at the same time.

[0052] In some embodiments, the power equipment cooling positive pressure dust removal system further includes a demagnetization component 50, which is located between the heat exchanger 31 and the filter 21 in the gas flow direction in the air duct 11. During the gas flow process, the gas is first filtered by the filter 21, then demagnetized by the demagnetization component 50, and finally heat exchanged by the heat exchanger 31.

[0053] Among them, the demagnetization component 50 can accurately absorb and remove magnetic impurities in the gas by using the magnetic field effect. These magnetic impurities may include iron filings, magnetic dust, etc. If these magnetic impurities enter the inside of the device with the gas, they may interfere with the normal operation of the device and even damage key components such as the filter 21. Through the processing of the demagnetization component 50, it can be ensured that the gas has been fully purified before entering the subsequent components.

[0054] Furthermore, the demagnetization component 50 includes a magnetic generator and a magnetic field regulator connected to the magnetic generator, and the magnetic field regulator is used to adjust the magnetic field strength and direction of the magnetic field emitted by the magnetic generator. Among them, the magnetic generator is responsible for generating a strong magnetic field. This magnetic field has sufficient strength and range to cover and penetrate the gas flowing through the demagnetization component 50, thereby effectively adsorbing and removing magnetic impurities therein. The magnetic field regulator is responsible for adjusting the magnetic field strength and direction of the magnetic field emitted by the magnetic generator. By precisely controlling the input parameters of the magnetic field regulator, such as current, voltage, etc., fine adjustment of the magnetic field can be achieved. This adjustment capability allows the demagnetization component 50 to flexibly adjust the strength and direction of the magnetic field according to different application scenarios and the characteristics of magnetic impurities in the gas to achieve the best demagnetization effect.

[0055] In some embodiments, the power equipment cooling positive pressure dust removal system also includes a secondary pressurization fan 60, which is arranged in the air duct 11, and the secondary pressurization fan 60 is located at the rear side of the air supply fan 40 in the gas flow direction in the air duct 11. Specifically, the air supply fan 40, as the initial power source of the system, is responsible for delivering external fresh air or processed air into the air duct 11. The secondary pressurization fan 60 is located at the rear side of the air supply fan 40, and it uses its own rotating blades to generate a strong airflow to perform secondary pressurization on the gas in the air duct 11. This step not only increases the pressure of the gas, but also increases the flow rate of the gas, thereby ensuring that the gas can smoothly enter the interior of the power equipment and provide it with the necessary cooling and dust removal effects.

[0056] In this embodiment, the secondary pressure fan 60 can be configured as an axial flow fan.

[0057] like Figure 3 As shown, in some embodiments, a frequency converter box 110 is provided in the power equipment room 100, and the air duct 11 includes a first air supply section and a second air supply section, the first air supply section is connected to the frequency converter box 110, and the second air supply section is connected to the indoor space of the power equipment room 100. Figure 3 The arrow A in the middle indicates the gas flow direction in the first air supply section, and the arrow B indicates the gas flow direction in the second air supply section.

[0058] The first air supply section and the second air supply section can divide the airflow into two streams. The first air supply section is used to deliver one airflow to the frequency converter box 110 to adjust the temperature of the frequency converter box 110, which can ensure that the frequency converter box 110 always works within the optimal temperature range. The second air supply section is used to deliver another airflow to the indoor space of the power equipment room 100, which can effectively reduce the indoor temperature and reduce the accumulation of dust and pollutants.

[0059] In some embodiments, the positive pressure dust removal system for cooling power equipment also includes a temperature and humidity monitor 70 and a controller. The temperature and humidity monitor 70, the dust removal filter assembly 20, the temperature control and dehydration assembly 30, the air supply fan 40 and the controller are electrically connected. The temperature and humidity monitor 70 is arranged in the power equipment room 100. The temperature and humidity monitor 70 is used to monitor the temperature and humidity changes in the power equipment room 100 and send the temperature and humidity changes to the controller. The controller is used to control the operation of the dust removal filter assembly 20, the temperature control and dehydration assembly 30, and the air supply fan 40 according to the temperature and humidity changes collected by the temperature and humidity monitor 70.

[0060] Specifically, the controller receives the temperature and humidity change data sent by the temperature and humidity monitor 70, and analyzes and processes the data quickly and accurately according to the preset algorithm and logic. Then, according to the analysis results, the controller intelligently adjusts the operating status of the dust removal and filtering component 20, the temperature control and dehydration component 30, and the air supply fan 40 to ensure that the temperature and humidity in the power equipment room 100 are always kept within the optimal range.

[0061] For example, when the temperature and humidity monitor 70 detects that the indoor temperature is too high or the humidity is too high, the controller will immediately start the temperature control and dehydration component 30 to quickly improve the indoor environment by lowering the temperature and removing excess moisture. At the same time, in order to keep the indoor air fresh and clean, the controller will also start the dust removal and filtration component 20 in a timely manner to efficiently filter dust and pollutants in the air. When the indoor environment reaches the preset temperature and humidity standards, the controller will intelligently adjust the speed and air supply of the air supply fan 40 to maintain the stability of the indoor environment. In some embodiments, the controller can be integrated with the above-mentioned low-voltage inverter and PLC controller 25 to make the overall structure more compact.

[0062] Furthermore, a damper 80 and a drive motor 43 are provided at the outlet 112 of the air duct 11 . The drive motor 43 is electrically connected to the controller. The drive motor 43 is used to control the damper 80 to rotate in the air duct 11 to open and close the outlet 112 of the air duct 11 according to instructions issued by the controller.

[0063] Specifically, a close electrical connection is established between the drive motor 43 and the controller, which enables the controller to obtain the status information of the drive motor 43 in real time and send control instructions to it according to actual needs. When the controller needs to adjust the air volume of the system, it will calculate the degree to which the damper 80 should be opened or closed according to the preset algorithm and logic, and send this instruction to the drive motor 43. After receiving the instruction, the drive motor 43 will immediately start and accurately control the rotation angle of the damper 80, thereby realizing accurate adjustment of the opening and closing state of the outlet 112 of the air duct 11.

[0064] In some embodiments, the power equipment cooling positive pressure dust removal system further includes an exhaust fan 90, which is arranged on the wall of the power equipment room 100. During the long-term operation of the power equipment, the indoor environment often becomes stuffy and the air quality decreases due to the heat generated by the equipment and the dust, exhaust gas and other pollutants generated during the operation. The activation of the exhaust fan 90 can quickly exhaust these hot air and pollutants to the outside, thereby keeping the indoor environment fresh and stable.

[0065] In the power equipment cooling positive pressure dust removal system provided by the present invention, its working modes can be divided into manual and automatic modes to meet the usage requirements in different scenarios.

[0066] In automatic mode, the system's workflow is particularly intelligent and efficient. After startup, the air supply fan 40 starts immediately and begins to continuously supply fresh and clean fresh air to the power equipment room 100, providing a good operating environment for the equipment. When the temperature inside the frequency converter 110 quietly climbs to the preset threshold of 25 degrees Celsius, the system will automatically and selectively start the first pipeline 311 or the second pipeline 312 (the specific choice depends on the current state of the system and the preset strategy) to achieve preliminary adjustment of the internal temperature of the frequency converter 110. This step is intended to prevent the adverse effects of excessive temperature on the frequency converter 110 and ensure that the system can continue to operate stably.

[0067] When the temperature in the frequency converter 110 further rises to 30 degrees Celsius, or the ambient humidity in the power equipment room 100 reaches an extreme condition of 90%, the system will automatically open the first pipeline 311 and the second pipeline 312 to cope with the harsh indoor environment with stronger cooling and dehumidification capabilities. At this time, the two pipelines work together to send the processed air into the room, quickly reduce the temperature and humidity, and create a more comfortable and reliable working environment for the power equipment.

[0068] However, when the temperature in the frequency converter 110 drops to a safe range below 18 degrees Celsius, the system automatically stops the operation of the first pipeline 311 and the second pipeline 312 to avoid unnecessary energy consumption and equipment loss caused by overcooling. At this time, only the air supply fan 40 is kept running to maintain the circulation and renewal of indoor air.

[0069] In addition, when the ambient humidity in the power equipment room 100 also reaches the extreme condition of 90%, the system will also start the exhaust fan synchronously. This design is intended to speed up the air flow in the room, accelerate the discharge of moisture and pollutants, and further improve the indoor environment. The start of the exhaust fan and the coordinated work of the first pipeline 311 and the second pipeline 312 together constitute an efficient and comprehensive cooling positive pressure dust removal system.

[0070] It is worth noting that although the system operation in manual mode is equally important, it is not described in detail in this manual because its operation is relatively simple and intuitive. In manual mode, users can freely adjust the operating status of each component according to actual needs to meet the usage requirements in specific scenarios.

[0071] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0072] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0073] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0075] In the present invention, the terms "one embodiment", "some embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0076] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A positive pressure dust removal system for cooling power equipment, characterized in that: include: An air duct, the air duct having an inlet and an outlet, the outlet being connected to the power equipment room; A dust removal filter assembly, the dust removal filter assembly comprising a plurality of filter screens, wherein the plurality of filter screens are arranged at intervals at the inlet; A temperature control and dehydration component, wherein the temperature control and dehydration component comprises a heat exchanger, and the heat exchanger is arranged in the air duct; An air supply fan is disposed in the air duct, and the air supply fan is located behind the heat exchanger in the gas flow direction in the air duct.

2. The power equipment cooling positive pressure dust removal system according to claim 1 is characterized in that: The dust removal and filtering assembly includes a first sliding frame, a second sliding frame and a dust blowing fan, the first sliding frame is movable relative to the filter along a first direction, the second sliding frame is arranged on the first sliding frame and is movable along a second direction perpendicular to the first direction, the dust blowing fan is arranged on the second sliding frame, and the air outlet of the dust blowing fan is arranged toward the filter.

3. The power equipment cooling positive pressure dust removal system according to claim 2 is characterized in that: The dust removal and filtering assembly comprises an adjustable air nozzle, which is rotatably arranged on the dust blowing fan and is used to adjust the air outlet direction of the dust blowing fan.

4. The power equipment cooling positive pressure dust removal system according to claim 1 is characterized in that: The heat exchanger includes a first pipeline and a second pipeline arranged side by side, at least one of the first pipeline and the second pipeline is provided with a heat dissipation fin, and the first pipeline and the second pipeline are arranged in counter-flow.

5. The power equipment cooling positive pressure dust removal system according to claim 1 is characterized in that: The power equipment cooling positive pressure dust removal system also includes a demagnetization component, and the demagnetization component is located between the heat exchanger and the filter in the gas flow direction in the air duct.

6. The power equipment cooling positive pressure dust removal system according to claim 5 is characterized in that: The demagnetization component includes a magnetic generator and a magnetic field regulator connected to the magnetic generator, wherein the magnetic field regulator is used to adjust the magnetic field strength and direction of the magnetic field emitted by the magnetic generator.

7. The power equipment cooling positive pressure dust removal system according to claim 1, characterized in that: The power equipment cooling positive pressure dust removal system also includes a secondary pressurization fan, which is arranged in the air duct and is located at the rear side of the air supply fan in the gas flow direction in the air duct.

8. The power equipment cooling positive pressure dust removal system according to claim 1, characterized in that: A frequency converter box is arranged in the power equipment room, and the air duct includes a first air supply section and a second air supply section, wherein the first air supply section is connected to the frequency converter box, and the second air supply section is connected to the indoor space of the power equipment room.

9. The positive pressure dust removal system for cooling power equipment according to any one of claims 1 to 8, characterized in that: It also includes a temperature and humidity monitor and a controller. The temperature and humidity monitor, dust removal and filtering components, temperature control and dehydration components, the air supply fan and the controller are electrically connected. The temperature and humidity monitor is arranged in the power equipment room. The temperature and humidity monitor is used to monitor the temperature and humidity changes in the power equipment room and send the temperature and humidity changes to the controller. The controller is used to control the operation of the dust removal and filtering components, the temperature control and dehydration components, and the air supply fan according to the temperature and humidity changes collected by the temperature and humidity monitor.

10. The power equipment cooling positive pressure dust removal system according to claim 9, characterized in that: A damper and a drive motor are provided at the outlet of the air duct. The drive motor is electrically connected to the controller. The drive motor is used to control the damper to rotate in the air duct to open and close the outlet of the air duct according to instructions issued by the controller.

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