High-voltage switch cabinet safety production protection system and device thereof
By designing a high-voltage switch cabinet safety production protection system with multi-stage air ducts and wind circulation modules, the problems of condensation and electrostatic dust accumulation are solved, and the internal environment of the high-voltage switch cabinet is achieved. The stability and service life of the equipment are improved, and safety hazards are reduced.
Patent Information
- Application Number
- CN202510102830.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-04-15
AI Technical Summary
During the actual operation of high-voltage switch cabinets, due to environmental factors, such as fluctuations in temperature and humidity, condensation and static dust accumulate, affecting the normal operation of the equipment, reducing service life, and may cause safety accidents.
A high-voltage switch cabinet safety production protection system is designed, and a closed-loop circulation link is formed through a multi-stage air duct design and wind circulation module to generate micro positive pressure to prevent the entry of static dust, and to prevent the generation of condensation by controlling the temperature.
It realizes precise control of the internal environment of high-voltage switch cabinets, improves the stability and service life of equipment, reduces safety hazards, and reduces maintenance needs.
Smart Images

Figure CN119834070A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of electric power equipment, and in particular to a high-voltage switch cabinet production safety protection system and a device thereof. Background Art
[0002] In the field of power equipment, high-voltage switchgear is an important power distribution equipment in the power system. The stability and safety of its internal environment are directly related to the safe production and stable operation of the entire power system. However, in the actual operation of the high-voltage switchgear, due to the influence of environmental factors, such as fluctuations in parameters such as temperature and humidity, a series of problems often occur inside the equipment, such as condensation and accumulation of electrostatic dust. These problems will not only affect the normal operation of the equipment, but also reduce the service life of the equipment and even cause safety accidents. Specifically, when the humidity inside the high-voltage switchgear is too high, the water molecules in the air will condense into water droplets on the cold surface inside the cabinet to form condensation. The presence of condensation will aggravate the corrosion and aging of the equipment, resulting in a decrease in insulation performance, thereby increasing the risk of equipment failure. In addition, since the high-voltage switchgear is not completely sealed, due to the temperature difference between the inside and outside of the cabinet, a thermal breathing effect is formed, causing various dust and humid gases from the outside to enter the cabinet and accumulate in the cabinet, which will not only affect the heat dissipation effect of the equipment, but also produce corrosive substances that damage the performance of the equipment components and the insulators in the cabinet.
[0003] In order to solve the above problems, traditional high-voltage switch cabinet production safety protection methods mostly adopt simple ventilation and dehumidification methods, such as installing ventilation fans or dehumidifiers in the cabinet, installing air conditioners and dehumidifiers in the switch room, etc. However, these methods often have the disadvantages of high energy consumption, poor effect, difficult maintenance, and can only deal with the large environment between switches, and cannot solve the fundamental problems in the cabinet. It is difficult to meet the high requirements of modern power systems for high-voltage switch cabinet production safety protection. Therefore, in order to solve the problems existing in the prior art, a more efficient and intelligent high-voltage switch cabinet production safety protection system and its device are needed, which can monitor and adjust the temperature and humidity inside the high-voltage switch cabinet in real time, prevent the generation of condensation and electrostatic dust, and ensure the safe and low-power operation of the high-voltage switch cabinet. The present invention realizes the precise control and effective management of the internal environment of the high-voltage switch cabinet by designing a high-voltage switch cabinet production safety protection system and its device, and provides technical guarantee for the production safety of the high-voltage switch cabinet. Summary of the invention
[0004] In view of the problems existing in the prior art, the first purpose of the present invention is to provide a high-voltage switch cabinet production safety protection system to overcome the above-mentioned defects in the prior art; the system designs a multi-level air duct, and sets air valves on the supply air duct and the return air duct to control the air volume and wind direction, so that a closed-loop circulation link is formed in the switch cabinet, and wind circulation is generated in the closed-loop circulation link, and a slight positive pressure is formed to prevent electrostatic dust from entering the high-voltage switch cabinet, and by controlling the temperature increase in the cabinet, the temperature in the cabinet is made higher than the indoor temperature, thereby preventing the generation of condensation, thereby managing and regulating the internal environment of the high-voltage switch cabinet, ensuring the safe and low-power operation of the high-voltage switch cabinet, and providing technical guarantee for the safe production of the high-voltage switch cabinet.
[0005] The second purpose of the present invention is to provide a high-voltage switch cabinet production safety protection device, which is used to overcome the above-mentioned defects in the prior art. The high-voltage switch cabinet production safety protection device can bring out the heat generated in the switch cabinet by utilizing wind circulation, thereby preventing local high temperature in the switch cabinet; and the high-voltage switch cabinet production safety protection device can process the water molecules in the switch cabinet, reduce the humidity in the switch cabinet, prevent condensation, form a micro-positive pressure in the cabinet, and prevent electrostatic dust from entering the cabinet.
[0006] In order to achieve the above-mentioned purpose, the technical solution provided by the present invention is: a high-voltage switch cabinet production safety protection system, including a system management main module, a system management sub-module, an induced draft duct module and a wind circulation module; the induced draft duct module includes a primary air supply duct, a primary return air duct, a secondary air supply duct, a secondary return air duct, a tertiary air supply duct, and a tertiary return air duct; the induced draft duct module is also provided with a primary manual pressure regulating valve and a secondary manual pressure regulating valve; the primary manual pressure regulating valve is arranged in the secondary return air duct and the secondary air supply duct, and the secondary manual pressure regulating valve is arranged in the tertiary return air duct and the tertiary air supply duct; the intelligent control submodule includes a temperature and humidity sensor module, a communication module, a PWM The control submodule and the return air electric air valve, the temperature and humidity sensing module is provided with a pipeline temperature and humidity acquisition sensor and an environmental temperature and humidity acquisition sensor; the system management main module includes a system management data analysis main module and a communication module; the system management submodule includes a data receiving management module and a frequency control module, the system management data analysis main module is connected to the temperature and humidity sensing module through the communication module, and is used to receive the temperature value and humidity value measured by the temperature and humidity sensor, and by comparing the preset humidity value and the actual humidity value when the preset temperature value is the same as the measured temperature value, the processed data information is sent to the data receiving management module and connected to the frequency control module to receive the data information; The wind circulation module includes an internal air valve and a processing fan. The frequency control module in the system management submodule is connected to the wind circulation module and is used to control the frequency and speed of the wind circulation module through a PWM signal.
[0007] The PWM control submodule in the intelligent control submodule is used to control the opening and closing of the return air electric air valve through a PWM signal; the high-voltage switchgear production safety protection system of the present invention realizes precise control of the internal environment of the high-voltage switchgear, thereby effectively improving the working environment inside the high-voltage switchgear, improving the stability and service life of the equipment operation, and providing a strong guarantee for the safe and stable operation of the power system.
[0008] As a further improvement of the present invention, the first-level return air duct is the main return air duct, and the first-level return air duct is connected to the air inlet of the safety production protection device of the high-voltage switch cabinet; the second-level return air duct is the branch return air duct, and the second-level return air duct is connected to the first-level return air duct; one end of the third-level return air duct is connected to the second-level return air duct, and the other end is respectively inserted into the cable room, busbar room and pressure relief plate set above the trolley room set in the switch cabinet; the first-level air supply duct is the main air supply duct, and the first-level air supply duct is connected to the air outlet of the safety production protection device of the high-voltage switch cabinet; the second-level air supply duct is the branch air supply duct, and the second-level air supply duct is connected to the first-level air supply duct; one end of the third-level air supply duct is connected to the second-level air supply duct, and the other end is respectively connected to the cable room, busbar room and pressure relief plate set above the trolley room set in the switch cabinet. By using the air duct system to connect the inside of the switch cabinet, the smoothness of air circulation in the high-voltage switch cabinet and the effectiveness of environmental management are ensured, thereby further improving the operating stability and service life of the equipment.
[0009] As a further improvement of the present invention, the intelligent control submodule further includes a return air electric air valve and a supply air electric air valve; the return air electric air valve is installed in the three-level return air duct, and the supply air electric air valve is installed in the three-level supply air duct. By using the electric air valve, the system can achieve precise control of wind power circulation. The rapid response and precise adjustment capabilities of the electric air valve ensure the efficient operation of the system.
[0010] As a further improvement of the present invention, the communication module is also provided with a star flash communication module, which is used for wireless short-range data communication between the system management main module and the intelligent control submodule. In the high-voltage switchgear production safety protection system, the star flash communication module is integrated into the system management main module and the intelligent control submodule. The intelligent control submodule wirelessly transmits the collected temperature and humidity data to the system management data analysis main module in the system management main module through the star flash communication module; the system management data analysis main module analyzes and processes the received data, and issues corresponding control instructions. This wireless short-range data communication method not only simplifies the structure and wiring complexity of the system, but also improves the efficiency and accuracy of data transmission. At the same time, it also makes system maintenance and upgrading easier and faster.
[0011] As a further improvement of the present invention, the high-voltage switch cabinet production safety protection system is configured with a public network transmission protocol and a private network transmission protocol; The public network transmission protocol is the MQTT communication protocol, which is used for data exchange between the high-voltage switchgear production safety protection system and the public cloud server; the private network transmission protocol is the 61850 communication protocol, which is used for data exchange between production safety protection and the private cloud server.
[0012] This high-voltage switch cabinet production safety protection system uses the built-in temperature and humidity sensor module to monitor the temperature and humidity inside the high-voltage switch cabinet in real time and accurately, and when the system management main module receives the data collected by the temperature and humidity sensor, it processes and analyzes the data. When the temperature and humidity inside the high-voltage switch cabinet are detected to exceed the preset safety range, the system management main module starts the corresponding adjustment strategy and communicates with the system management sub-module through 485. The data receiving management module in the system management sub-module sends instructions to the frequency control module. The frequency control module controls the start and stop of the heating device by adjusting the frequency and speed of the wind circulation module to achieve temperature and humidity regulation.
[0013] This high-voltage switchgear production safety protection system adopts a multi-stage air supply and return air design, and sets air valves and pressure regulating valves in the multi-stage air supply and return air system. By controlling the opening and closing of the pressure regulating valve and the air valve, as well as the opening angle of the air valve, the air can be evenly distributed to every corner of the high-voltage switchgear, including key areas such as the cable room, busbar room and trolley room, forming a closed-loop circulation air path, which can adjust the temperature and humidity environment inside the high-voltage switchgear and improve the efficiency of environmental management.
[0014] The high-voltage switch cabinet production safety protection system can filter out dust, particles and other impurities in the air by setting a protection grid in the air guide part, prevent electrostatic dust from entering the high-voltage switch cabinet body, and ensure the cleanliness of the air in the cabinet.
[0015] The present invention also provides a high-voltage switch cabinet production safety protection device, comprising a shell, an air guide part, a humidity processor and a heating device; the humidity processor is arranged in the shell, and is used to remove moisture from the air by changing the frequency; the air guide part is arranged on the shell, and is used to guide the air into the high-voltage switch cabinet production safety protection device by changing the frequency and discharge it after air treatment; the heating device is arranged inside the shell, and is used to heat and generate regenerated wind; by setting a humidity processing device, moisture in the air can be removed by changing the frequency, and by increasing the environmental humidity in the high-voltage switch cabinet, the condensation in the cabinet caused by the temperature in the high-voltage switch cabinet being lower than the indoor temperature can be avoided, thereby adjusting the internal environment of the switch cabinet.
[0016] During the operation of the high-voltage switch cabinet safety production protection device, the air with high humidity inside the high-voltage switch cabinet is sucked into the device through the equipment return air port, the sucked air enters the humidity processor, and is dehumidified in the drying section on the wheel. The dry air after dehumidification is sent back to the high-voltage switch cabinet through the equipment outlet to form a cycle; the air in the switch cabinet that has been preliminarily treated enters the high-voltage switch cabinet safety production protection device again through the regeneration air inlet, is heated in the heating area, and is dehumidified in the regeneration exhaust area, and the high-temperature and high-humidity gas is discharged from the regeneration outlet.
[0017] As a further improvement of the present invention, the air guiding part includes an equipment return air inlet, a regeneration equipment fan air outlet, an equipment air outlet, an internal air valve, an equipment fan and a regeneration air inlet; the equipment air outlet is fixedly installed on the shell, the equipment return air inlet is fixedly installed on the shell on the opposite side of the equipment air outlet, a protective grid is arranged in the equipment return air inlet, the regeneration air inlet is fixedly installed on the shell and is connected to the heating device, the regeneration equipment fan air outlet is fixed on the shell and is connected to the dehumidification working area of the humidity processor and the regeneration fan, the internal air valve is fixedly installed in the shell, one end is connected to the equipment fan, and the other end is connected to the equipment air outlet, thereby realizing the precise control and recycling of the air inside the high-voltage switch cabinet, and also ensuring the continuous stability and optimization of the cabinet environment through efficient dehumidification and regeneration processes.
[0018] As a further improvement of the present invention, the humidity processor includes a support frame, a rotating wheel, a drying zone, a regeneration fan, and an air duct, and the humidity processor is connected to a driving structure.
[0019] The support frame is fixedly mounted on the shell, the wheel is mounted on the support frame, the drying zone is arranged on the wheel, one end of the air duct is connected to the drying zone, and the other end is connected to the regeneration fan, the regeneration fan is fixedly mounted on the shell and is connected to the fan outlet of the regeneration equipment.
[0020] As a further improvement of the present invention, the driving structure includes a motor, a chain and a sprocket; The motor is fixedly connected to the support frame, the chain is fixedly connected to the rotating wheel, the sprocket is meshed with the chain and connected to the motor. The driving structure and the motor are used to ensure the power of the environment treatment device in the high-voltage switch cabinet.
[0021] As a further improvement of the present invention, the high-voltage switch cabinet production safety protection device also includes a main control system; the main control system is used to issue instructions to control the operation of the high-voltage switch cabinet production safety protection device, thereby ensuring the stability of the operation of the high-voltage switch cabinet production safety protection device.
[0022] Beneficial effects of the present invention: (1) The high-voltage switch cabinet production safety protection system and device of the present invention utilize wind circulation to remove the heat in the switch cabinet, thereby reducing the temperature in the cabinet and preventing damage to the equipment caused by increased temperature. At the same time, the present invention can effectively reduce the humidity in the cabinet and prevent the generation of condensation, thereby avoiding damage to the switch cabinet caused by excessive humidity and reducing safety hazards.
[0023] (2) The present invention realizes precise control of air volume and direction by setting up a system management submodule and a multi-level air duct module, and realizes a closed-loop circulation link. It also intelligently adjusts power output through environmental temperature and humidity sensors and data analysis submodules, adjusts operating status according to real-time data, and improves energy efficiency.
[0024] (3) The present invention provides a plurality of air valves to assist the operation of the high-voltage switch cabinet production safety protection system, thereby ensuring the stability of the system operation and improving the weather resistance of the equipment.
[0025] (4) The present invention ensures that any possible cracks or incompletely sealed interfaces will exhaust air instead of inhaling external polluted air by creating a micro-positive pressure environment inside the equipment. In addition, since there is no thermal breathing effect caused by temperature rise inside the cabinet, static electricity dust is effectively prevented from entering the cabinet.
[0026] (5) The switch cabinet production safety protection system of the present invention reduces the impact of condensation and static dust, reduces the equipment failure rate and maintenance requirements, thereby extending the service life of the equipment and reducing maintenance and replacement costs. By improving the environmental conditions inside the switch cabinet, the safety and reliability of the power supply system are significantly improved, and the risk of power supply interruption caused by equipment failure or damage is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a system block diagram of a high-voltage switch cabinet production safety protection system of the present invention; Figure 2 It is a schematic diagram of the arrangement of pipeline modules of a high-voltage switch cabinet production safety protection system of the present invention; Figure 3 This is a schematic diagram of the main structure of a safety production protection device for a high-voltage switch cabinet according to the present invention; Figure 4 It is a schematic diagram of the structure of other viewing angles of the present invention; Figure 5 It is a schematic diagram of the internal structure of the present invention; Figure 6 The present invention Figure 5 Schematic diagram of the structure of the medium humidity processor; Figure 7 The present invention Figure 4 Schematic diagram of the internal structure; Figure 8It is a schematic diagram of the main control system in the present invention.
[0028] Figure numerals: 1. Shell; 2. Air guide part; 21. Equipment return air outlet; 22. Protection grid; 23. Regeneration equipment fan outlet; 24. Equipment outlet; 25. Internal air valve; 26. Equipment fan; 27. Regeneration air inlet; 3. Main control system; 4. Humidity processor; 41. Support frame; 42. Rotor; 43. Drying section; 44. Regeneration fan; 45. Air duct; 5. Driving structure; 51. Motor; 52. Chain; 53. Sprocket; 6. Heating device. DETAILED DESCRIPTION
[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0030] The first embodiment of the present invention provides a high-voltage switch cabinet production safety protection system, such as Figures 1 to 8 As shown, it includes a system management main module, a system management sub-module, an air duct module and a wind circulation module; The induced air duct module includes a primary air supply duct, a primary air return duct, a secondary air supply duct, a secondary air return duct, a tertiary air supply duct, and a tertiary air return duct; the induced air duct module is also provided with a primary manual pressure regulating valve and a secondary manual pressure regulating valve; the primary manual pressure regulating valve is arranged in the secondary return duct and the secondary air supply duct, and the secondary manual pressure regulating valve is arranged in the tertiary return duct and the tertiary air supply duct; The intelligent control submodule includes a temperature and humidity sensor module, a communication module, a PWM control submodule and a return air valve. The temperature and humidity sensor module is provided with a pipeline temperature and humidity collection sensor and an ambient temperature and humidity collection sensor; The system management main module includes a system management data analysis main module and a communication module. The communication module is in communication connection with the communication module in the intelligent control submodule. The system management data analysis main module is connected to the temperature and humidity sensor module through the communication module to receive the temperature value and humidity value measured by the temperature and humidity sensor, and by comparing the preset humidity value and the actual humidity value when the preset temperature value is the same as the measured temperature value, the processed data information is sent to the data receiving management module and the frequency control module is connected to receive the data information; The wind circulation module includes an internal air valve and a processing fan. The frequency control module in the system management submodule is connected to the wind circulation module and is used to control the frequency and speed of the wind circulation module through a PWM signal.
[0031] The PWM control submodule in the intelligent control submodule is used to control the opening and closing of the return air electric air valve through the PWM signal; the pipeline temperature and humidity acquisition sensor and the environmental temperature and humidity acquisition sensor collect the temperature and humidity data inside the high-voltage switch cabinet and the pipeline in real time, and transmit the data to the system management data analysis main module; the system management data analysis main module compares the measured value with the preset value to determine whether the current environment needs to be adjusted. If the wind pressure and air volume need to be adjusted, the corresponding control signal is sent through the frequency control module; the frequency control module in the system control submodule controls the frequency and speed of the wind circulation module through the PWM signal. Through the repeated execution of the above steps, the system continuously adjusts the temperature, humidity and air circulation status inside the high-voltage switch cabinet until the preset governance goal is achieved.
[0032] In this embodiment, if Figures 1 to 8 As shown, the first-level return air duct is the main return air duct, and the first-level return air duct is connected to the air inlet of the high-voltage switch cabinet safety production protection device; the second-level return air duct is the branch return air duct, and the second-level return air duct is connected to the first-level return air duct; one end of the tertiary return air duct is connected to the second-level return air duct, and the other end is respectively inserted into the cable room, busbar room and pressure relief plate arranged above the trolley room arranged in the switch cabinet; the first-level air supply duct is the main air supply duct, and the first-level air supply duct is connected to the air outlet of the high-voltage switch cabinet safety production protection device; the second-level air supply duct is the branch air supply duct, and the second-level air supply duct is connected to the first-level air supply duct; one end of the tertiary air supply duct is connected to the second-level air supply duct, and the other end is respectively connected to the cable room, busbar room and pressure relief plate arranged above the trolley room arranged in the switch cabinet.
[0033] The first-level return air duct is connected to the air inlet of the high-voltage switch cabinet safety production protection device, and is responsible for collecting air from various areas inside the high-voltage switch cabinet; the second-level return air duct, as a branch of the first-level return air duct, connects the air in some areas to the main return air system; one end of the third-level return air duct is connected to the second-level return air duct, and the other end is directly inserted into the cable room, busbar room and pressure relief plate above the trolley room in the high-voltage switch cabinet to ensure that the air in these key areas is effectively collected. The first-level supply air duct is connected to the air outlet of the high-voltage switch cabinet safety production protection device, and returns the dehumidified dry air to the interior of the high-voltage switch cabinet; the second-level supply air duct delivers dry air to specific areas or branch systems; one end of the third-level supply air duct is connected to the second-level supply air duct, and the other end is directly connected to the key area in the high-voltage switch cabinet to ensure that the dry air can be evenly distributed.
[0034] In this embodiment, if Figures 1 to 8 As shown, the intelligent control submodule includes a return air electric air valve and a supply air electric air valve; the return air electric air valve is installed in a three-level return air duct, and the supply air electric air valve is installed in a three-level supply air duct.
[0035] The electric air valves for supply and return air are installed in the three-stage supply and return air ducts, and are controlled to open and close by the intelligent control submodule through PWM signals. When the system detects that the humidity inside a switch cabinet is too high, the intelligent control submodule will send a signal to a group of electric air valves for supply and return air to open them, accelerating the air circulation and dehumidification process.
[0036] In this embodiment, if Figures 1 to 8 As shown, the communication module of the high-voltage switch cabinet production safety protection system is also provided with a star flash communication module, and the star flash communication module is used for wireless short-distance data communication between the temperature and humidity sensor and the system management data analysis main module.
[0037] In this embodiment, if Figures 1 to 8 As shown, the high-voltage switchgear production safety protection system is configured with a public network transmission protocol and a private network transmission protocol; the public network transmission protocol is the MQTT communication protocol, which can transmit the system's equipment status, operating parameters and other data to the public cloud server, and perform remote monitoring through a mobile platform or PC, and package the data through the cloud server and send it to the user end for data exchange between the production safety protection system and the public cloud server.
[0038] The private network transmission protocol is the 61850 communication protocol, which can transmit the system's operating parameters as data to the private cloud server and remotely monitor through a mobile platform or PC. It is used for data exchange between the production safety protection system and the private cloud server. By using two transmission protocols, the on-site operation and maintenance costs of personnel can be effectively reduced and the utilization rate of the system can be improved.
[0039] In this embodiment, if Figures 1 to 8 As shown, the high-voltage switch cabinet production safety protection system monitors the temperature and humidity inside the cabinet of the high-voltage switch cabinet in real time and accurately through the built-in temperature and humidity sensor module, and when the system management data analysis main module receives the data collected by the temperature and humidity sensor, it processes and analyzes the data. When the temperature and humidity inside the high-voltage switch cabinet are monitored to exceed the preset safety range value, the data receiving management module starts the corresponding adjustment strategy and sends instructions to the frequency control module in the system management submodule. The frequency control module controls the start and stop of the heating device by adjusting the frequency and speed of the wind circulation module to achieve temperature and humidity regulation. By adopting a multi-stage air supply and return air design, the air can be evenly distributed to all corners of the high-voltage switch cabinet, including key areas such as the cable room, busbar room and trolley room, and the temperature and humidity environment inside the high-voltage switch cabinet can be adjusted, thereby improving the efficiency of environmental management. The high-voltage switch cabinet production safety protection system can filter out impurities such as dust and particles in the air by setting a protective grid in the air guide part, prevent electrostatic dust from entering the high-voltage switch cabinet cabinet, ensure the cleanliness of the air in the cabinet, and complete the environmental management of the high-voltage switch cabinet.
[0040] The second embodiment of the present invention provides a high-voltage switch cabinet production safety protection device, such as Figures 1 to 8 As shown, it includes a housing 1, an air guide 2, a humidity processor 4, a heating device 6 and a main control system 3; the humidity processor 4 is arranged in the housing 1, and is used to remove moisture from the air; the air guide 2 is arranged on the housing 1, and is used to guide the air into the high-voltage switch cabinet production safety protection device and discharge it after air treatment; the heating device 6 is arranged inside the housing 1, and is used to heat and generate regeneration wind. By setting the humidity processor 4, the moisture in the air can be removed by changing the frequency, and by increasing the humidity of the environment in the high-voltage switch cabinet, the condensation in the cabinet caused by the temperature in the high-voltage switch cabinet being lower than the indoor temperature is avoided, thereby adjusting the internal environment of the switch cabinet. The main control system 3 is arranged on the housing 1, and is used to control the high-voltage switch cabinet production safety protection device to issue instructions. The main control system includes an intelligent control submodule, and the main control system 3 is connected to the sensor in the high-voltage switch cabinet production safety protection device to realize real-time data collection and processing, and issue control instructions to the working parts of the dehumidifier according to the data processing results.
[0041] In this embodiment, if Figures 1 to 8 As shown, the air guide part 2 includes an equipment return air outlet 21, a protective grid 22, a regeneration equipment fan air outlet 23, an equipment air outlet 24, an internal air valve 25, an equipment fan 26 and a regeneration air inlet 27; the equipment air outlet 24 is fixedly installed on the shell 1, the equipment return air outlet 21 is fixedly installed on the shell 1 on the opposite side of the equipment air outlet 24, a protective grid 22 is arranged in the equipment return air outlet 21, the regeneration air inlet 27 is fixedly installed on the shell 1 and is connected to the heating device 6, the regeneration equipment fan air outlet 23 is fixed on the shell 1, and is connected to the dehumidification working area of the humidity processor 4 and the regeneration fan 28, the internal air valve 25 is fixedly installed in the shell 1, one end is connected to the equipment fan 26, and the other end is connected to the equipment air outlet 24. The main control system 3 is connected to the air guide part 2 through the Star Flash communication module. The main control system issues control instructions to control the start and stop of the equipment fan 26 and the regeneration fan and adjust the internal air valve 25. The main control system can also issue instructions to control the heating device 6 to perform regeneration air heating according to the working status of the high-voltage switch cabinet production safety protection device.
[0042] In this embodiment, if Figures 1 to 8As shown, the humidity processor 4 includes a support frame 41, a rotor 42, a drying zone 43, a regeneration fan 44, and an air duct 45. The humidity processor 4 is connected to a driving structure 5. The rotor 42 is mounted on the support frame 41, the drying zone 43 is arranged on the rotor 42, one end of the air duct 45 is connected to the drying zone 43, and the other end is connected to the regeneration fan 44. The regeneration fan 44 is fixedly mounted on the housing 1 and is connected to the regeneration device fan outlet 23. The main control system 3 is also connected to the humidity processor 4 in communication, and the operation of the entire humidity processor 4 is optimized through control logic to ensure coordinated control between various components. The main control system 3 can monitor the operating status of the humidity processor 4 in real time, including the rotation speed of the rotor 42, the humidity level of the drying zone 43, the working status of the regeneration fan 44, etc. According to the real-time monitoring data, the main control system 3 can issue control instructions to control the rotation speed of the rotor 42, the air volume of the regeneration fan 44 and other parameters.
[0043] In this embodiment, if Figures 1 to 8 As shown, the driving structure 5 includes a motor 51, a chain 52 and a sprocket 53; the motor 51 is fixedly connected to the support frame 41, the chain 52 is fixedly connected to the rotating wheel 42, and the sprocket 53 is meshed with the chain 52 and connected to the motor 51. The main control system 3 is connected to the motor 51 in communication and is responsible for adjusting the parameters such as the start, stop, speed and torque of the motor. By accurately controlling the operating state of the motor 51, the main control system 3 can ensure that the rotating wheel 42 rotates at an optimal rate, thereby achieving efficient dehumidification.
[0044] In this embodiment, if Figures 1 to 8 As shown, the air guide part 2 also includes a plurality of protection grids 22; the plurality of protection grids 22 are respectively fixedly mounted on the equipment return air inlet 21, the regeneration equipment fan air outlet 23, the equipment air outlet 24 and the regeneration air inlet 27.
[0045] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A high-voltage switchgear production safety protection system, characterized in that: It includes system management main module, system management sub-module, intelligent control sub-module, induced draft duct module and wind circulation module; The induced air duct module includes a primary air supply duct, a primary air return duct, a secondary air supply duct, a secondary air return duct, a tertiary air supply duct, and a tertiary air return duct; the induced air duct module is also provided with a primary manual pressure regulating valve and a secondary manual pressure regulating valve; the primary manual pressure regulating valve is arranged in the secondary return duct and the secondary air supply duct, and the secondary manual pressure regulating valve is arranged in the tertiary return duct and the tertiary air supply duct; The intelligent control submodule includes a temperature and humidity sensor module, a communication module, a PWM control submodule and a return air valve. The temperature and humidity sensor module is provided with a pipeline temperature and humidity acquisition sensor and an ambient temperature and humidity acquisition sensor; The system management main module includes a system management data analysis main module and a communication module. The system management data analysis main module is connected to the temperature and humidity sensor module through the communication module to receive the temperature value and humidity value measured by the temperature and humidity sensor, and by comparing the preset humidity value and the actual humidity value when the preset temperature value is the same as the measured temperature value, the processed data information is sent to the data receiving management module and connected to the frequency control module to send the data information; The wind circulation module includes an internal air valve and a processing fan; The system management submodule includes a data receiving management module and a frequency control module. The frequency control module is connected to the wind circulation module and is used to control the frequency and speed of the wind circulation module through a PWM signal.
2. A high-voltage switch cabinet production safety protection system according to claim 1, characterized in that: The first-level return air duct is the main return air duct, and the first-level return air duct is connected to the air inlet of the high-voltage switch cabinet safety production protection device; the second-level return air duct is the branch return air duct, and the second-level return air duct is connected to the first-level return air duct; one end of the tertiary return air duct is connected to the second-level return air duct, and the other end is respectively connected to the pressure relief plate arranged above the cable room, busbar room and trolley room of the switch cabinet; the first-level supply air duct is the main supply air duct, and the first-level supply air duct is connected to the air outlet of the high-voltage switch cabinet safety production protection device; the second-level supply air duct is the branch supply air duct, and the second-level supply air duct is connected to the first-level supply air duct; one end of the tertiary supply air duct is connected to the second-level supply air duct, and the other end is respectively connected to the cable room, busbar room and pressure relief plate arranged above the trolley room arranged in the switch cabinet.
3. A high-voltage switch cabinet production safety protection system according to claim 1, characterized in that: The intelligent control submodule also includes a return air electric air valve and a supply air electric air valve; the return air electric air valve is installed in the three-level return air duct, and the supply air electric air valve is installed in the three-level supply air duct.
4. A high-voltage switch cabinet production safety protection system according to claim 1, characterized in that: The communication module is provided with a star flash communication module, and the star flash communication module is used for wireless short-range data communication between the pipeline temperature and humidity acquisition sensor and the environmental temperature and humidity acquisition sensor and the system management main module.
5. A high-voltage switch cabinet production safety protection system according to claim 1, characterized in that: The high-voltage switch cabinet production safety protection system is configured with a public network transmission protocol and a private network transmission protocol; The public network transmission protocol is the MQTT communication protocol, which is used for data exchange between the high-voltage switchgear production safety protection system and the public cloud server; the private network transmission protocol is the 61850 communication protocol, which is used for data exchange between the high-voltage switchgear production safety protection system and the private cloud server.
6. A high-voltage switch cabinet production safety protection device, comprising a high-voltage switch cabinet production safety protection system according to any one of claims 1 to 5, characterized in that: It also includes a housing (1), an air guide (2), a humidity processor (4), a heating device (6), and a main control system (3); The humidity processor (4) is arranged in the housing (1) and is used to remove moisture from the air. The air guide (2) is arranged on the housing (1) and is used to guide the air into the high-voltage switch cabinet production safety protection device and discharge it after air treatment. The heating device (6) is arranged inside the housing (1) and is used to heat and generate regeneration air. The main control system (3) includes a system management main module and a system management submodule, which are used to receive data and issue control instructions to the system.
7. A high-voltage switch cabinet production safety protection device according to claim 6, characterized in that: The air guide part (2) comprises an equipment return air port (21), a protection grid (22), a regeneration equipment fan air outlet (23), an equipment air outlet (24), an internal air valve (25), an equipment fan (26) and a regeneration air inlet (27); The device air outlet (24) is fixedly mounted on the housing (1); the device air return port (21) is fixedly mounted on the housing (1) on the opposite side of the device air outlet (24); a protective grid (22) is arranged inside the device air return port (21); the regeneration air inlet (27) is fixedly mounted on the housing (1) and is connected to the heating device (6); the regeneration device fan air outlet (23) is fixedly mounted on the housing (1) and is connected to the dehumidification working area of the humidity processor (4); the internal air valve (25) is fixedly mounted in the housing (1), one end of which is connected to the device fan (26) and the other end of which is connected to the device air outlet (24).
8. A high-voltage switch cabinet production safety protection device according to claim 7, characterized in that: The humidity processor (4) comprises a support frame (41), a rotating wheel (42), a drying zone (43), a regeneration fan (44), and an air duct (45); the humidity processor (4) is connected to a driving structure (5); The support frame (41) is fixedly mounted on the housing (1), the rotary wheel (42) is mounted on the support frame (41), the drying zone (43) is arranged on the rotary wheel (42), one end of the air duct (45) is connected to the drying zone (43), and the other end is connected to the regeneration fan (44), and the regeneration fan (44) is fixedly mounted on the housing (1) and is connected to the fan outlet (23) of the regeneration device.
9. A high-voltage switch cabinet production safety protection device according to claim 8, characterized in that: The driving structure (5) comprises a motor (51), a chain (52) and a sprocket (53); The motor (51) is fixedly connected to the support frame (41), the chain (52) is fixedly connected to the rotating wheel (42), and the sprocket (53) is meshed with the chain (52) and connected to the motor (51).
10. A high-voltage switch cabinet production safety protection device according to claim 6, characterized in that: Also includes a main control system (3); The main control system (3) is used to receive data and issue instructions to control the operation of the high-voltage switch cabinet production safety protection device.
Citation Information
Patent Citations
Condensation removal assembly of high-voltage power transmission and transformation line and condensation removal method of condensation removal assembly
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Fan frequency control system for power electronic converter
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