New energy electrical cabinet, protection method and storage medium thereof

Abstract

The invention relates to the field of electrical cabinets, in particular to a new energy electrical cabinet, a protection method and a storage medium thereof.The new energy electrical cabinet comprises a cabinet body, electrical equipment is installed in the cabinet body, a gas storage box is arranged on the cabinet body, and a gas storage gas inlet used for gas inflow and a gas storage gas outlet used for gas outflow are formed in the gas storage box; the cabinet body is provided with a gas storage gas inlet and a gas storage gas outlet, the gas storage gas inlet and the gas storage gas outlet are both communicated with the outside, the cabinet body is provided with a ventilation gas inlet used for gas inlet, the ventilation gas inlet is communicated with the gas storage box, the cabinet body is provided with an exhaust pipe used for gas outlet, and the exhaust pipe is communicated with the outside. The invention has the effects of improving the filtering performance and reducing the probability that gravels enter the cabinet body to contact the electrical equipment.

Description

Technical Field

[0001] The present application relates to the field of electrical cabinets, and in particular to a new energy electrical cabinet, a protection method and a storage medium thereof. Background Art

[0002] Electrical cabinets are particularly important in the transmission and distribution of electricity and are part of the power system. With the development of the new energy industry, the branch of electrical cabinets, new energy electrical cabinets are also gradually developing. New energy electrical cabinets include photovoltaic grid-connected boxes, photovoltaic grid-connected cabinets, photovoltaic box transformers, photovoltaic prefabricated cabin booster stations, photovoltaic substations, etc. They are mainly used to transmit the electric energy generated by photovoltaic power generation and are often installed on the edge of photovoltaic power generation. The areas with developed photovoltaic power generation in my country are usually high altitudes such as Tibet, where large areas are directly exposed to sunlight, with little and low vegetation. This will lead to a large temperature difference between day and night, a great test on the heat dissipation performance, strong wind and sand, and a great test on the filtering performance. Summary of the invention

[0003] In order to improve the problem that the Northwest region has high requirements and great challenges for the heat dissipation and filtering performance of new energy electrical cabinets, the present application provides a new energy electrical cabinet, a protection method and a storage medium thereof.

[0004] The present application provides a new energy electrical cabinet, which adopts the following technical solution: A new energy electrical cabinet comprises a cabinet body, wherein the cabinet body is used to install electrical equipment, an air storage box is arranged on the cabinet body, an air storage inlet for air intake and an air storage outlet for air exhaust are provided on the air storage box, both the air storage inlet and the air storage outlet are connected to the outside, an air exchange inlet for air intake is provided on the cabinet body, the air exchange inlet is connected to the air storage box, an exhaust pipe for air exhaust is provided on the cabinet body, and the exhaust pipe is connected to the outside.

[0005] By adopting the above technical solution, an air storage box is added between the cabinet and the outside world, which increases the buffer and reduces the probability that strong winds from the outside will directly blow air with sand and stones into the cabinet. The outside air temperature also enters the air storage box first, and the air flow and temperature are buffered and stabilized before entering the cabinet, thereby reducing the probability that the external temperature changes will affect the electrical equipment.

[0006] Optionally, the air storage inlet and the ventilation inlet are both provided with a windproof ventilation component for covering the opening, and the windproof ventilation component includes a dense mesh filter plate and a fan, and the dense mesh filter plate is also covered and arranged in the exhaust pipe and the air storage outlet.

[0007] By adopting the above technical solution, sand and gravel are filtered multiple times through dense-mesh filter plates, further reducing the probability of sand and gravel entering the cabinet. At the same time, the fan controls the speed of air circulation, making it more adaptable to temperature changes.

[0008] Optionally, a sand filter screen for filtering sand and gravel is provided in the air storage box, a gathering groove for gathering and discharging sand and gravel filtered by the sand filter screen is penetrated through the bottom of the air storage box, an anti-reverse plate is rotatably provided on the air storage box, the anti-reverse plate is used to seal the opening surface of the gathering groove connected to the outside, an anti-reverse elastic part is sleeved on the rotating shaft of the anti-reverse plate, and the anti-reverse elastic part rotates the anti-reverse plate to seal the opening surface of the gathering groove.

[0009] By adopting the above technical solution, after enough sand and gravel are accumulated in the gathering groove through the mechanical structure, the sand and gravel are automatically discharged, and at the same time, external sand and gravel are prevented from entering the gathering groove.

[0010] Optional, including: A temperature detection module, used to detect the temperature of the cabinet and the gas storage box, obtain temperature detection data and output it; A weight detection module, used to detect the gravity exerted on the anti-reversal plate and the sand filter screen plate, obtain weight detection data and output it; The data processing module is used to receive the temperature detection data and the weight detection data, perform data processing and calculation, obtain a processing signal and output it to the user for viewing, and control the fan through the processing signal.

[0011] By adopting the above technical solution, the power and forward and reverse rotation of the fan can be automatically controlled according to the situation, which is convenient and quick, improves the degree of automation and intelligence, and at the same time improves the operating efficiency of electrical equipment.

[0012] The present application provides a method for protecting a new energy electrical cabinet, which adopts the following technical solution: A protection method for a new energy electrical cabinet, comprising: Acquire the temperature detection data and timing data, the temperature detection data including device temperature data, internal environment temperature data and external environment temperature data, and the processing signal including internal fan power adjustment data and external fan power adjustment data; Determine the temperature adjustment difference by using the device temperature data and a preset optimal temperature interval threshold; Determine the ambient temperature difference by using the internal ambient temperature data and the external ambient temperature data; Determine the optimal temperature difference of the environment by using the internal environment temperature data and the optimal temperature interval threshold; Determine and output the internal fan power adjustment data according to the ambient temperature difference, the ambient optimal temperature difference, the temperature adjustment difference and a preset heat dissipation wind speed threshold; Determine the external environment impact data by using the internal fan power adjustment data, the timing data and the difference between the optimal environment temperature; The external fan power adjustment data is determined and outputted according to the external environment impact data, the internal fan power adjustment data, a preset low power consumption threshold and a preset internal fan impact coefficient.

[0013] By adopting the above technical solution, the two fans are automatically controlled according to the temperature of the electrical equipment and the ambient temperature, so that the electrical equipment is kept within the optimal temperature range as much as possible, thereby improving the working efficiency of the electrical equipment.

[0014] Optional, including: Acquire the weight detection data, wherein the weight detection data includes filter weight data, and the processing signal also includes fan reversal data and a stop signal; Determine and output the fan reversal data based on the filter weight data and a preset sand blowing trigger threshold; Get the test signal; Determine the weight data before stopping, the weight data when stopping and the weight data when restarting through the fan reversal data, the test signal, the filter weight data and the timing data; Determine the deceleration effect weight by using the weight data before stopping and the weight data during stopping; Determine the acceleration effect weight by using the stop weight data and the restart weight data; Determine a test impact difference by using the deceleration impact weight and the acceleration impact weight; Determine fan influence weight data by using the deceleration influence weight, the acceleration influence weight and the test influence difference; Determine the weight data of sand blowing by using the fan reversal data, the fan impact weight data and the filter weight data; The stop signal is determined and outputted according to the weight data of the sand blowing and a preset sand blowing stop threshold.

[0015] By adopting the above technical solution, the influence of the fan's wind force on the filter weight data is eliminated, the fan is automatically judged and controlled to reverse and blow sand, the filtering performance of the dense mesh filter plate is guaranteed, and the detection during the sand blowing process is more accurate, so that it can be accurately judged whether enough sand has been blown away, so as to stop in time, instead of misjudging that the threshold has not been reached and reversing continuously to waste electricity, and also shorten the life of the fan too much, thereby improving automation.

[0016] Optional, including: The weight detection data also includes sand discharge weight data, and the processing signal also includes estimated remaining time data and corrosion data; Determine a sand discharge curve by using the sand discharge weight data and the timing data; Determine critical sand discharge data through the sand discharge interval; Determine the hindering speed data by using the plurality of the sand discharge critical data and the timing data; Determine the estimated remaining time data through the sand discharge weight data, the obstruction speed data and a preset corrosion threshold value and output it; The corrosion data is determined and outputted according to the sand discharge weight data and the corrosion threshold.

[0017] By adopting the above technical solution, the degree of rust can be automatically determined, so that users can perform repairs and replacements conveniently.

[0018] The present application provides a computer-readable storage medium, which adopts the following technical solution: A computer-readable storage medium stores a computer program that can be loaded by a processor and executed to implement a method for protecting a new energy electrical cabinet.

[0019] By adopting the above technical solution, the computer program is stored in a computer-readable storage medium.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: 1. It reduces the probability that strong winds from outside will directly blow air with sand and stones into the cabinet, and also reduces the probability that external temperature changes will affect electrical equipment.

[0021] 2. Automatically control the fan and adjust the heat dissipation efficiency of electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a new energy electrical cabinet in an embodiment of the present application.

[0023] Figure 2 It is a schematic diagram of the structure of the fan protruding from the top of the hidden cabinet.

[0024] Figure 3 is along Figure 2 Schematic diagram of the cross section along line AA.

[0025] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0026] Figure 5 It is a schematic diagram of the module structure of a new energy electrical cabinet in an embodiment of the present application.

[0027] Figure 6 It is a flow chart of a protection method for a new energy electrical cabinet in an embodiment of the present application.

[0028] Figure 7 It is a flowchart diagram of step S2 to step S28.

[0029] Figure 8 It is a flowchart diagram of step S3 to step S35.

[0030] Explanation of the reference numerals: 1. Cabinet; 11. Ventilation inlet; 12. Exhaust pipe; 2. Air storage box; 21. Air storage inlet; 22. Air storage outlet; 23. Sand filter screen; 231. Gathering groove; 232. Anti-reverse plate; 233. Anti-reverse elastic member; 3. Windproof ventilation assembly; 31. Filter plate; 32. Fan; 4. Temperature detection module; 41. Weight detection module; 42. Data processing module. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-8 This application is described in further detail.

[0032] The present application embodiment discloses a new energy electrical cabinet. Figure 1 and Figure 2 The new energy electrical cabinet includes a cabinet body 1, and the cabinet body 1 is used to install various electrical equipment. An air storage box 2 is fixedly connected to the outer wall of the cabinet body 1. An air storage inlet 21 for air intake and an air storage outlet 22 for air exhaust are provided on the air storage box 2. The air storage inlet 21 and the air storage outlet 22 are both connected to the outside. A ventilation inlet 11 for air intake is provided on the cabinet body 1. The ventilation inlet 11 is connected to the inside of the air storage box 2. An exhaust pipe 12 for air exhaust is fixedly connected to the cabinet body 1. The inside of the exhaust pipe 12 is connected to the internal space of the cabinet body 1. The exhaust pipe 12 runs through the internal space of the air storage box 2 from the side wall of the cabinet body 1 to the outside, so that the exhaust pipe 12 is directly connected to the outside.

[0033] Reference Figure 1 In the present embodiment, the cabinet body 1 is a rectangular parallelepiped, and there are four side walls in the circumferential direction of the cabinet body 1, one of which is provided with a plurality of cabinet doors, and the other three side walls without cabinet doors are covered by the gas storage box 2, that is, the gas storage box 2 extends in a U shape, surrounding the three side walls of the cabinet body 1, and the gas storage air inlet 21 and the gas storage air outlet 22 are located at the two ends of the extension direction of the gas storage box 2, and at the same time, the two ends of the gas storage box 2 are provided with cabinet doors which are arranged to be opened and closed by rotation, so that the user can open them.

[0034] Reference Figure 1 and Figure 2, a windproof ventilation component 3 for covering the opening is installed in the air storage inlet 21 and the ventilation inlet 11, and the windproof ventilation component 3 includes a dense mesh filter plate 31 and a fan 32, the dense mesh filter plate 31 is fixedly connected to the inner walls of the air storage inlet 21, the ventilation inlet 11, the exhaust pipe 12 and the air storage outlet 22, and the dense mesh filter plate 31 covers the opening surfaces of the air storage inlet 21, the ventilation inlet 11, the exhaust pipe 12 and the air storage outlet 22, and there are two fans 32, one fan 32 is installed in the air storage box 2, and the other fan 32 is installed in the cabinet 1, and the fan 32 in the air storage box 2 covers the opening surface connecting the air storage inlet 21 and the air storage box 2, that is, the fan 32 is closer to the inside of the air storage box 2 than the dense mesh filter plate 31 in the air storage inlet 21. Another fan 32 in the cabinet 1 corresponds to the ventilation inlet 11. The fan 32 covers the opening surface of the ventilation inlet 11 connected to the cabinet 1. The fan 32 is closer to the inside of the cabinet 1 than the dense mesh filter plate 31 in the ventilation inlet 11. In this embodiment, the fan 32 is a fan 32 capable of forward air intake and reverse air discharge, and the dense mesh filter plate 31 can be made of dense mesh gauze for filtering and a plate for supporting.

[0035] Reference Figure 2 and Figure 3 In this embodiment, for the convenience of description, the gravity direction is downward, and a sand filter screen plate 23 for filtering sand and gravel is installed in the air storage box 2. The sand filter screen plate 23 and the dense mesh filter plate 31 only differ in size. A gathering groove 231 for gathering and discharging the sand and gravel filtered by the sand filter screen plate 23 is opened downward through the bottom of the air storage box 2. The inner wall of the gathering groove 231 is inclined, and the inner wall of the inclined gathering groove 231 is inclined in a direction in which the opening of the gathering groove 231 becomes smaller as it goes downward.

[0036] Reference Figure 3 and Figure 4 The anti-reverse plate 232 is rotatably provided on the lower end surface of the air storage box 2. The anti-reverse plate 232 is used to cover and block the opening surface of the gathering slot 231 communicating with the outside. The anti-reverse plate 232 rotates in the direction of approaching or moving away from the opening surface of the gathering slot 231. An anti-reverse elastic member 233 is sleeved on the rotation axis of the anti-reverse plate 232. The anti-reverse elastic member 233 can be a torsion spring. One end of the anti-reverse elastic member 233 is fixedly connected to the rotation axis of the anti-reverse plate 232, and the other end of the anti-reverse elastic member 233 is fixedly connected to the air storage box 2. The anti-reverse elastic member 233 twists in the direction of rotating the anti-reverse plate 232 to block the opening surface of the gathering slot 231.

[0037] Reference Figure 1 and Figure 2 and Figure 5The cabinet 1 and the air storage box 2 are also equipped with a temperature detection module 4, a weight detection module 41 and a data processing module 42. There are at least three temperature detection modules 4, two of which are respectively installed on the electrical equipment in the cabinet 1, in the space in the cabinet 1 and in the space in the air storage box 2, to detect and output temperature detection data. There are at least three weight detection modules 41, which are respectively installed on the inner wall of the air storage inlet 21, the inner wall of the ventilation inlet 11 and the anti-reverse plate 232, to detect and output weight detection data.

[0038] Reference Figure 5 The data processing module 42 includes a database and a processor. The database is used to store various threshold data, including threshold data such as optimal temperature range data and heat dissipation wind speed threshold. The processor is used to receive temperature detection data and weight detection data, and then call the corresponding threshold data from the database to process and calculate the data, and then output the corresponding processing signal to the user, or control the fan 32.

[0039] The processor may include a central processing unit such as a CPU or MPU or a host system built around a CPU or MPU, including hardware or software. After the meter has a processor, people can freely control the metering instrument through programming to make it run according to people's wishes. The processor can control local measurement transmission, remote measurement transmission, remote communication, etc. through internal protocols. Internal protocols refer to all protocols that achieve mutual communication or links within the same metering instrument or the same system, including: human-computer interaction protocols, software / hardware (interface) protocols, chip bus (C-Bus) protocols, internal bus (I-Bus) protocols, etc. Part or all of the protocols. With the development of integrated circuit technology, some protocols that belong to the external bus (E-Bus) protocol are also classified as internal protocols after the external bus (E-Bus) is integrated into the chip.

[0040] The implementation principle of a new energy electrical cabinet in an embodiment of the present application is as follows: when heat dissipation and cooling are required, the fan 32 draws external air into the air storage box 2, and performs the first filtration through the dense mesh filter plate 31 in the air storage inlet 21, and then performs the second filtration through the sand filter screen plate 23. The sand and gravel filtered out for the second time slide down from the sand filter screen plate 23 to the gathering groove 231 and press on the anti-reverse plate 232. When the weight is sufficient to overcome the torsional elastic force of the anti-reverse elastic member 233, the anti-reverse plate 232 is pressed open to discharge the sand and gravel, and then the fan 32 draws the air in the air storage box 2 into the cabinet 1 through the ventilation inlet 11, and performs the third filtration through the dense mesh filter plate 31 in the ventilation inlet 11.

[0041] The embodiment of the present application discloses a method for protecting a new energy electrical cabinet. Figure 6 , the protection method of the new energy electrical cabinet includes the following steps: S1. Acquire temperature detection data and timing data, the temperature detection data includes device temperature data, internal environment temperature data and external environment temperature data, and the processing signal includes internal fan power adjustment data and external fan power adjustment data; S11, determining the temperature adjustment difference through the device temperature data and the preset optimal temperature range threshold; S12, determining the ambient temperature difference through the internal ambient temperature data and the external ambient temperature data; S13, determining the optimal temperature difference of the environment through the internal environment temperature data and the optimal temperature interval threshold; S14, determining and outputting the internal fan power adjustment data according to the ambient temperature difference, the ambient optimum temperature difference, the temperature adjustment difference and the preset heat dissipation wind speed threshold; S15, determining the external environment impact data through the internal fan power adjustment data, the timing data and the difference between the optimal environment temperature; S16, determining and outputting the external fan power adjustment data according to the external environment impact data, the internal fan power adjustment data, the preset low power consumption threshold and the preset internal fan impact coefficient.

[0042] In detail: the equipment temperature data is the temperature of the electrical equipment in the cabinet 1, the internal environment temperature data is the temperature of the space in the cabinet 1, the external environment temperature data is the temperature of the space in the air storage box 2, the internal fan power adjustment data is the output power of the fan 32 in the ventilation air inlet 11, and the external fan power adjustment data is the output power of the fan 32 in the air storage air inlet 21; the optimal temperature range is the temperature range in which the electrical equipment can achieve the best working efficiency. The difference between the equipment temperature data and the ideal optimal temperature range threshold is calculated to obtain the temperature adjustment difference, which represents the base number that needs to be adjusted. Then, the difference between the temperature of the cabinet 1 and the temperature outside the cabinet 1 is calculated to obtain the ambient temperature difference. It indicates the heat dissipation and cooling effect that can be generated by the temperature of the air sucked in from the outside. The difference between the ambient temperature in the cabinet 1 and the optimal temperature range threshold is calculated, which is the optimal ambient temperature difference. It indicates the temperature difference between the ambient temperature in the cabinet 1 and the optimal working temperature of the electrical equipment. This and the temperature adjustment difference are used as the base number that needs to be adjusted. The heat dissipation wind speed threshold is the air flow generated by the power of the fan 32. The heat dissipation performance in addition to the temperature generated also includes the natural heat dissipation efficiency caused by the temperature difference. For example, the equipment temperature data is 50°C and the internal environment temperature data is 30°C. At this time, there is a 20°C difference between the electrical equipment and the internal environment temperature, and there is a natural heat dissipation efficiency. This is the temperature The natural heat dissipation caused by the difference in temperature adjustment is 20℃, which means that the electrical equipment needs to be lowered by 20℃. If the difference in the optimal ambient temperature is 0℃, it means that the optimal operating temperature of the cabinet 1 is the same as that of the electrical equipment. At this time, combined with the heat dissipation wind speed threshold, it can be judged that the electrical equipment generates too much heat. Although the interior of the cabinet 1 is at the optimal temperature, it cannot suppress the heat of the electrical equipment. Therefore, the power of the fan 32 needs to be increased to dissipate heat through gas flow. If the ambient temperature difference is 20℃, it means that the outside of the cabinet 1 is 20℃ lower than the inside of the cabinet 1. When the cabinet 1 maintains the optimal temperature but cannot suppress the temperature of the electrical equipment at the optimal temperature, it is necessary to inhale a lower temperature from the outside to dissipate the heat. Heat discharge in cabinet 1, if the temperature adjustment difference is 0℃ and the ambient optimum temperature difference is 0℃, it means that the temperature is just right at this time. If the ambient temperature difference is 20℃ at this time, the power of fan 32 needs to be reduced to avoid the temperature being lower than the optimal temperature interval threshold. If the ambient temperature difference is -5℃, the power of fan 32 can be increased to compensate for the reduction in heat dissipation efficiency caused by the fact that the temperature of the air entering from the outside is higher than the air temperature in cabinet 1 through a larger air flow rate. The relationship between the adjustment of temperature and flow rate and the power of fan 32 is obtained through the conversion of the heat dissipation wind speed threshold, and the internal fan power adjustment data is obtained and output to the fan 32 in the ventilation inlet 11;The change process of the optimal temperature difference of the environment, combined with the time represented by the timing data, can obtain a temperature-time curve, which indicates the influence of the fan 32 sucking air into the cabinet 1 on the temperature inside the air storage box 2. For example, if there is strong sunlight outside the air storage box 2, the temperature outside the air storage box 2 will usually be higher than the inside of the air storage box 2 which is not directly exposed to the sun. Therefore, if the air is sucked in too quickly, the outside air will directly enter with the heat of the sun, raising the temperature of the air storage box 2 and the cabinet 1. If the air is sucked in too quickly, it will eventually cause the temperature inside the air storage box 2 to be the same as the outside temperature. If the air enters slowly, the heat of this part of the air entering the air storage box 2 will be dispersed because it is not directly exposed to the sun, and part of it will be dispersed to the outside of the air storage box 2, so that the temperature inside the air storage box 2 is continuously maintained at a lower temperature than the outside. If the outside is in winter when the temperature is relatively low, the same is true. Since the air storage box 2 is affected by the heat dissipation of the electrical equipment in the cabinet 1, that is, the heat of the electrical equipment is slowly released into the air storage box 2 through the side wall of the cabinet 1, the temperature inside the air storage box 2 is usually higher than the outside. If the air is sucked in slowly, it will be maintained The temperature is stable and easy to calculate. If the air is sucked in too fast, the temperature in the air storage box 2 will be similar to the external temperature. These are the external environment impact data. The power flow rate of the internal fan power adjustment data causes the temperature and time curve change to judge the impact of the external environment. The internal fan impact coefficient is the impact of the fan 32 in the ventilation inlet 11 on the air inhaled by the air storage inlet 21. The low power consumption threshold is the ratio of the consumed power to the flow rate power that can be caused. In layman's terms, it consumes the least power to achieve the best heat dissipation effect, commonly known as cost performance. The external fan power adjustment data can be obtained by combining them. For example, the internal fan power adjustment data is at the power with the highest cost performance. The impact on the air intake at the air storage inlet 21 is determined by the internal fan impact coefficient. If the air intake volume affected by this impact is balanced with the external environment impact data, the external fan power adjustment data is 0. If the external environment impact data continues to cool down, and the affected air intake volume is small, and the temperature of the electrical equipment cannot be suppressed at the same time, the corresponding external fan power adjustment data is output for assistance. ;

[0043] Reference Figure 7 , further comprising the following steps: S2, obtaining weight detection data, the weight detection data including filter weight data, and the processing signal also including fan reversal data and stop signal; S21, determining and outputting fan reversal data based on filter weight data and a preset sand blowing trigger threshold; S22, obtaining a test signal; determining the weight data before stopping, the weight data when stopping, and the weight data when restarting through the fan reversal data, the test signal, the filter weight data, and the timing data; S23, determining the weight affected by deceleration by using the weight data before stopping and the weight data during stopping; S24, determining the acceleration effect weight by using the stop weight data and the restart weight data; S25, determining the test impact difference by the deceleration impact weight and the acceleration impact weight; S26, determining the fan impact weight data by the difference between the deceleration impact weight, the acceleration impact weight and the test impact; S27, determining the weight data of the blowing sand through the fan reversal data, the fan impact weight data, and the filter weight data; S28, determining a stop signal based on the weight data during sand blowing and a preset sand blowing stop threshold and outputting the signal.

[0044] In detail: the filter weight data is the weight of the dense mesh filter plate 31. When the filter weight data exceeds the sand blowing trigger threshold, it means that there are too many sands and stones adhering to the outer surface of the dense mesh filter plate 31. At this time, the fan reversal data is output to control the fan 32 to reverse and discharge air, so as to blow away the sands and stones adhering to the dense mesh filter plate 31; when it is used for the first time or has not been used for a long time, a test signal will be output for testing after the fan reversal data is output. After the fan 32 receives the test signal, it will decelerate after reaching the power specified by the fan reversal data until it stops rotating. At the same time, timing is performed, and the time is recorded at the beginning of deceleration. The weight data corresponding to this time is read from the filter weight data, which is the weight data before stopping. The filter weight data is read after the rotation stops completely as the weight data when stopping, and then it is started again. When the speed just reaches the specified power of the fan reversal data, the filter weight data at this time is recorded as the restart weight data;If the dense mesh filter plate 31 is tilted to a certain extent, then when it is blown by the fan 32, an upward or downward component force will be generated. At this time, the filter weight data will be too large or too small, resulting in inaccuracy. The weight data before stopping is subtracted from the weight data when stopping to obtain the deceleration influence weight, which is the weight of the sand and stones blown away during the deceleration process and the influence of the wind force blown by the fan 32 on the dense mesh filter plate 31. The weight data when stopping is subtracted from the restart weight data to obtain the acceleration influence weight, which is the weight of the sand and stones blown away during the acceleration process and the influence of the wind force blown by the fan 32 on the dense mesh filter. The force of the influence of the plate 31 is then subtracted from the weight of the influence of the deceleration and the weight of the influence of the acceleration, thereby eliminating the influence of the wind force blown by the fan 32 on the dense mesh filter plate 31. The difference between the weight of the sand and gravel blown off during the remaining deceleration process and the weight of the sand and gravel blown off during the acceleration process is the difference. Since the fan 32 decelerates to stop, no more sand and gravel will be blown off. Therefore, from deceleration to restarting to the maximum, it can be regarded as continuous. The sand and gravel that are easy to blow off on the dense mesh filter plate 31 have been blown off at the beginning. Therefore, deceleration and acceleration at this time are usually to dry the sand and gravel before blowing it off. For example, sand and gravel containing moisture are first The sand and stones must be blown dry before they can hang down, and it takes a short time, so it can be regarded as blowing the sand and stones down at a uniform speed. Therefore, the test impact difference is divided by two, and combined with the time, the sand blowing efficiency can be obtained, that is, the speed at which the sand loses weight when blown down. This speed combined with the time consumed for deceleration can approximately get the weight of the sand subtracted during the deceleration process. The difference between this weight and the weight affected by deceleration is the force affected by the wind. In pursuit of accuracy, this speed is combined with the time consumed for acceleration to approximately get the weight of the sand subtracted during the acceleration process. The difference between this weight and the weight affected by acceleration is the force affected by the wind. The average of the two wind forces during acceleration and deceleration can be used as the force of the wind force generated by the rotation of the fan 32 on the filter weight data, which is the fan influence weight data. In the subsequent fan reversal data output sand blowing process, the filter weight data is subtracted from the fan influence weight data to obtain the actual weight of the dense mesh filter plate 31 after eliminating the wind influence, which is the sand blowing weight data. Then, it is compared with the sand blowing stop threshold. If it is less than the sand blowing stop threshold, it means that the sand blowing effect has been achieved. At this time, a stop signal is output to the fan 32 to stop the reversal of the fan 32. ;

[0045] Reference Figure 8 , further comprising the following steps: S3, the weight detection data also includes the sand discharge weight data, and the processing signal also includes the estimated remaining time data and corrosion data; S31, determining a sand discharge curve according to the sand discharge weight data and the timing data; S32, determining critical data for sand discharge through the sand discharge interval; S33, determining the obstruction speed data through a plurality of sand discharge critical data and timing data; S34, determining and outputting estimated remaining time data based on the sand discharge weight data, the obstacle speed data and the preset corrosion threshold; S35, determining the corrosion data through the sand discharge weight data and the corrosion threshold value and outputting it.

[0046] In detail: The sand discharge weight data is the gravity exerted on the anti-reverse plate 232. Combined with the time, a curve of gravity and time can be obtained, which is the sand discharge curve. Each peak value in the sand discharge interval, that is, the point where it rises to the highest point and then turns downward, is the sand discharge critical data. Combined with the time, the change data of the sand discharge critical data over time can be obtained, which is the hindering speed data. Usually, as the corrosion situation worsens, the sand discharge critical data will become larger and larger. The difference between the sand discharge critical data and the corrosion threshold at this time divided by the hindering speed data is the time required for the corrosion to reach the threshold at this time. This is the estimated remaining time data, which is output to the user for viewing. When the sand discharge weight data is at the corrosion threshold, it is the degree of corrosion, which is a percentage, and is output to the user for viewing.

[0047] The embodiment of the present application discloses a computer-readable storage medium. The computer-readable storage medium stores a computer program that can be loaded by a processor and execute a method for protecting a new energy electrical cabinet.

[0048] Computer-readable storage media include, for example, various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A new energy electrical cabinet, characterized in that: The invention comprises a cabinet (1), wherein the cabinet (1) is used to install electrical equipment, an air storage box (2) is arranged on the cabinet (1), an air storage inlet (21) for air intake and an air storage outlet (22) for air discharge are provided on the air storage box (2), the air storage inlet (21) and the air storage outlet (22) are both connected to the outside, a ventilation inlet (11) for air intake is provided on the cabinet (1), the ventilation inlet (11) is connected to the air storage box (2), and an exhaust pipe (12) for air discharge is provided on the cabinet (1), the exhaust pipe (12) is connected to the outside.

2. A new energy electrical cabinet according to claim 1, characterized in that: The air storage inlet (21) and the ventilation inlet (11) are both provided with a windproof ventilation component (3) for covering the openings. The windproof ventilation component (3) comprises a dense mesh filter plate (31) and a fan (32). The dense mesh filter plate (31) is also provided to cover the exhaust pipe (12) and the air storage outlet (22).

3. A new energy electrical cabinet according to claim 2, characterized in that: A sand filter screen (23) for filtering sand and gravel is arranged in the air storage box (2); a gathering slot (231) for gathering and discharging sand and gravel filtered by the sand filter screen (23) is provided through the bottom of the air storage box (2); an anti-reverse plate (232) is rotatably arranged on the air storage box (2); the anti-reverse plate (232) is used to block an opening surface of the gathering slot (231) in communication with the outside; an anti-reverse elastic member (233) is sleeved on a rotating shaft of the anti-reverse plate (232); the anti-reverse elastic member (233) rotates the anti-reverse plate (232) to block the opening surface of the gathering slot (231).

4. A new energy electrical cabinet according to claim 3, characterized in that: include: A temperature detection module (4) is used to detect the temperature of the cabinet (1) and the gas storage box (2), obtain temperature detection data and output it; A weight detection module (41) is used to detect the gravity exerted on the anti-reversal plate (232) and the sand filter screen plate (23), obtain weight detection data and output it; The data processing module (42) is used to receive the temperature detection data and the weight detection data, perform data processing calculations, obtain a processing signal and output it to a user for viewing, and control the fan (32) through the processing signal.

5. A method for protecting a new energy electrical cabinet, using a new energy electrical cabinet as claimed in claim 4, characterized in that: include: Acquire the temperature detection data and timing data, the temperature detection data including device temperature data, internal environment temperature data and external environment temperature data, and the processing signal including internal fan power adjustment data and external fan power adjustment data; Determine the temperature adjustment difference by using the device temperature data and a preset optimal temperature interval threshold; Determine the ambient temperature difference by using the internal ambient temperature data and the external ambient temperature data; Determine the optimal temperature difference of the environment by using the internal environment temperature data and the optimal temperature interval threshold; Determine and output the internal fan power adjustment data according to the ambient temperature difference, the ambient optimal temperature difference, the temperature adjustment difference and a preset heat dissipation wind speed threshold; Determine the external environment impact data by using the internal fan power adjustment data, the timing data and the difference between the optimal environment temperature; The external fan power adjustment data is determined and outputted according to the external environment impact data, the internal fan power adjustment data, a preset low power consumption threshold and a preset internal fan impact coefficient.

6. A method for protecting a new energy electrical cabinet according to claim 5, characterized in that: include: Acquire the weight detection data, wherein the weight detection data includes filter weight data, and the processing signal also includes fan reversal data and a stop signal; Determine and output the fan reversal data based on the filter weight data and a preset sand blowing trigger threshold; Get the test signal; Determine the weight data before stopping, the weight data when stopping and the weight data when restarting through the fan reversal data, the test signal, the filter weight data and the timing data; Determine the deceleration effect weight by using the weight data before stopping and the weight data during stopping; Determine the acceleration effect weight by using the stop weight data and the restart weight data; Determine a test impact difference by using the deceleration impact weight and the acceleration impact weight; Determine fan influence weight data by using the deceleration influence weight, the acceleration influence weight and the test influence difference; Determine the weight data of sand blowing by using the fan reversal data, the fan impact weight data and the filter weight data; The stop signal is determined and outputted according to the weight data of the sand blowing and a preset sand blowing stop threshold.

7. A method for protecting a new energy electrical cabinet according to claim 6, characterized in that: include: The weight detection data also includes sand discharge weight data, and the processing signal also includes estimated remaining time data and corrosion data; Determine a sand discharge curve by using the sand discharge weight data and the timing data; Determine critical sand discharge data through the sand discharge interval; Determine the hindering speed data by using the plurality of the sand discharge critical data and the timing data; Determine the estimated remaining time data through the sand discharge weight data, the obstruction speed data and a preset corrosion threshold value and output it; The corrosion data is determined and outputted according to the sand discharge weight data and the corrosion threshold.

8. A computer-readable storage medium, characterized in that: A computer program is stored which can be loaded by a processor and executes a method for protecting a new energy electrical cabinet as claimed in any one of claims 5 to 7.

Images