CN114923272B - High voltage switchgear and temperature and humidity control method - Google Patents
High voltage switchgear and temperature and humidity control method Download PDFInfo
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- CN114923272B CN114923272B CN202210575308.3A CN202210575308A CN114923272B CN 114923272 B CN114923272 B CN 114923272B CN 202210575308 A CN202210575308 A CN 202210575308A CN 114923272 B CN114923272 B CN 114923272B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
本发明公开一种高压开关柜和温湿度控制方法，其中，高压开关柜包括柜体，柜体外设置有第一温湿度传感器和控制单元，柜体包括若干独立的小室，每个小室内均设置有第二温湿度传感器和温湿度控制组件，每个小室内的温湿度控制组件和第二温湿度传感器分别与控制单元电连接，温湿度控制组件包括风机和空调，当温湿度控制组件处于抽气模式时，风机将小室内的气体抽离小室，空调从小室外吸气，当温湿度控制组件处于循环模式时，风机向空调鼓风，空调从小室内吸气。通过设置温湿度控制组件具有抽气模式和循环模式，当外部环境温湿度适中时，可以采用抽气模式对小室进行换气，当外部环境温湿度较大时，可以采用循环模式，减少空调的能耗。
The present invention discloses a high-voltage switch cabinet and a temperature and humidity control method, wherein the high-voltage switch cabinet includes a cabinet body, a first temperature and humidity sensor and a control unit are arranged outside the cabinet body, the cabinet body includes a plurality of independent small chambers, each of which is provided with a second temperature and humidity sensor and a temperature and humidity control component, the temperature and humidity control component and the second temperature and humidity sensor in each small chamber are electrically connected to the control unit respectively, the temperature and humidity control component includes a fan and an air conditioner, when the temperature and humidity control component is in an exhaust mode, the fan extracts the gas in the small chamber from the small chamber, and the air conditioner draws air from the small chamber, when the temperature and humidity control component is in a circulation mode, the fan blows air to the air conditioner, and the air conditioner draws air from the small chamber. By setting the temperature and humidity control component to have an exhaust mode and a circulation mode, when the temperature and humidity of the external environment are moderate, the exhaust mode can be used to ventilate the small chamber, and when the temperature and humidity of the external environment are high, the circulation mode can be used to reduce the energy consumption of the air conditioner.
Description
Technical Field
The invention relates to the field of high-voltage equipment, in particular to a high-voltage switch cabinet and a temperature and humidity control method of the high-voltage switch cabinet.
Background
In the operation process of the high-voltage switch cabinet in the 10kV high-voltage chamber, when the load is increased, the heating condition is often generated, so that fans are installed at the pressure relief openings of all independent cells of the high-voltage switch cabinet, and a blower is installed at the bottom of the switch cabinet, however, the conventional switch cabinet temperature control device cannot independently control the operation of the fans of the pressure relief opening of each cell, and when the temperature of the switch cabinet reaches the starting temperature of the fans, all the fans are started, so that great power resource waste is caused. In addition, the temperature and humidity conditions of all independent cells in the cabinet cannot be reflected by the existing temperature control display of the switch cabinet, an operator cannot know the equipment operation temperature of all the cells in the high-voltage switch cabinet at the first time, and the temperature measurement of the traditional infrared thermometer cannot be carried out on the cells in the cabinet. In addition, the current high-voltage switch cabinet can only be cooled through ventilation, and when the environment temperature of the outside of the high-voltage switch cabinet is too high or the humidity is too high, the temperature is too high or the humidity is too high along with the outside of the cabinet in the cabinet.
Disclosure of Invention
The aim of the embodiment of the invention is that: the high-voltage switch cabinet and the temperature and humidity control method can ensure that the temperature and humidity of each independent small chamber in the high-voltage switch cabinet are in a specified range, and the energy consumption is low.
In order to achieve the above purpose, the invention adopts the following technical scheme:
In a first aspect, a high-voltage switch cabinet is provided, the high-voltage switch cabinet comprises a cabinet body, the cabinet body is provided with first temperature and humidity sensor and control unit outward, the cabinet body includes a plurality of independent cells, every all be provided with second temperature and humidity sensor and temperature and humidity control subassembly in the cell, every temperature and humidity control subassembly in the cell with second temperature and humidity sensor respectively with the control unit electricity is connected, temperature and humidity control subassembly includes fan and air conditioner, temperature and humidity control subassembly has mode of bleeding and circulation mode, works as when temperature and humidity control subassembly is in the mode of bleeding, the fan will gas in the cell is taken out from the cell, the air conditioner is followed the cabinet is external to be inhaled, works as when temperature and humidity control subassembly is in the circulation mode, the fan to the air conditioner blast, the air conditioner is followed in the cell is inhaled.
As a preferred scheme of the high-voltage switch cabinet, the high-voltage switch cabinet comprises a pipeline, wherein the air conditioner and the fan are respectively positioned at two opposite sides of the small chamber, the pipeline is communicated with the fan and the air conditioner, and when the temperature and humidity control assembly is in the circulation mode, the fan blows air to the air conditioner through the pipeline.
As a preferred scheme of high tension switchgear, the cell is provided with the air intake, temperature and humidity control subassembly includes the shutoff board, the shutoff board is used for the shutoff the air intake, temperature and humidity control subassembly still has energy-conserving mode, works as temperature and humidity control subassembly is in when energy-conserving mode, the air conditioner is closed, the shutoff board is opened, the fan will gas in the cell is taken out the cell.
As a preferable scheme of the high-voltage switch cabinet, each small chamber is internally provided with an infrared imager, the infrared imagers are electrically connected with the control unit, and the infrared imagers are used for detecting the temperature of electric equipment in the small chamber.
As a preferable scheme of the high-voltage switch cabinet, the air conditioner and the fan are respectively positioned at two opposite sides of the small chamber, and the second temperature and humidity sensor is adjacent to the fan.
As a preferable scheme of the high-voltage switch cabinet, a touch screen is arranged outside the cabinet body, and the touch screen is electrically connected with the control unit.
In a second aspect, a temperature and humidity control method is provided, configured to control a temperature and humidity of the high-voltage switch cabinet, and includes the following steps:
When the second temperature and humidity sensor detects that the temperature or the humidity in the small chamber is larger than a preset first value, the control unit independently starts the temperature and humidity control component in the small chamber;
when the first temperature and humidity sensor detects that the external humidity is smaller than a preset second value, the temperature and humidity control assembly is in an air extraction mode, and the small chamber exchanges gas with the external environment;
when the first temperature and humidity sensor detects that the external humidity is greater than the second value, the temperature and humidity control assembly is in a circulation mode, and the small chamber is isolated from the external environment.
As a preferable scheme of the temperature and humidity control method, the small chamber is provided with an air inlet, the temperature and humidity control component comprises a plugging plate,
When the first temperature and humidity sensor detects that the external temperature is smaller than a preset third value, the temperature and humidity control assembly is in an energy-saving mode, the plugging plate is opened, and external gas directly enters the small chamber through the air inlet.
As a preferable scheme of the temperature and humidity control method, the safe temperature of the electric equipment in each small room is T1, an infrared imager is arranged in each small room, the real-time temperature of the electric equipment detected by the infrared imager is T2, and when T2 is more than T1, the temperature and humidity control component starts the air extraction mode or the circulation mode.
As a preferable scheme of the temperature and humidity control method, the real-time temperature detected by the first temperature and humidity sensor is T3, the real-time temperature detected by the second temperature and humidity sensor is T4, the temperature difference value Δt=t4-T3 of each cell, and the control unit alarms if Δt >5 ℃.
The beneficial effects of the invention are as follows: the temperature and humidity control assembly and the second temperature and humidity sensor in each small chamber are respectively and electrically connected with the control unit, so that the operation of the temperature and humidity control assembly of each small chamber can be independently controlled according to the temperature of each small chamber, and the energy consumption can be saved; the temperature and humidity control assembly is provided with an air extraction mode and a circulation mode, when the temperature and humidity of the external environment are moderate, the air extraction mode can be adopted to ventilate the small chamber, and when the temperature and humidity of the external environment are large, the circulation mode can be adopted, so that the energy consumption of the air conditioner is reduced.
Drawings
The invention is described in further detail below with reference to the drawings and examples.
Fig. 1 is a schematic diagram of a high-voltage switch cabinet according to an embodiment of the invention.
Fig. 2 is a schematic view of a chamber according to an embodiment of the invention.
Fig. 3 is a schematic view of a second embodiment of the chamber according to the present invention.
Fig. 4 is a schematic view of a touch screen according to an embodiment of the invention.
In the figure:
100. a cabinet body;
1. a cell; 2. air-conditioning; 3. a blower; 4. a pipe; 5. a first temperature and humidity sensor; 6. a second temperature and humidity sensor; 7. an air inlet; 8. a touch screen; 9. an infrared imager.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 4, the high-voltage switch cabinet provided by the invention comprises a cabinet body 100, a first temperature and humidity sensor 5 and a control unit are arranged outside the cabinet body 100, the cabinet body 100 comprises a plurality of independent small chambers 1, in the embodiment, each small chamber 1 can be used for independently placing a circuit breaker, a relay protection device and the like, a second temperature and humidity sensor 6 and a temperature and humidity control assembly are arranged in each small chamber 1, the temperature and humidity control assembly and the second temperature and humidity sensor 6 in each small chamber 1 are respectively and electrically connected with the control unit, the temperature and humidity control assembly comprises a fan 3 and an air conditioner 2, the temperature and humidity control assembly has an air suction mode and a circulation mode, when the temperature and humidity of the external environment is moderate, the fan 3 pumps air in the small chamber 1 out of the small chamber 1, the air conditioner 2 sucks air from outside the cabinet body 100, when the humidity of the external environment is high, the temperature and humidity control assembly is in the circulation mode, the fan 3 blows air into the air conditioner 2, and the air conditioner 2 sucks air from the small chamber 1. The temperature and humidity control assembly and the second temperature and humidity sensor 6 in each small chamber 1 are respectively and electrically connected with the control unit, so that the operation of the temperature and humidity control assembly of each small chamber 1 can be independently controlled according to the temperature of each small chamber 1, and the energy consumption can be saved; the temperature and humidity control assembly is provided with an air extraction mode and a circulation mode, when the temperature and humidity of the external environment are moderate, the air extraction mode can be adopted to ventilate the small chamber 1, and when the temperature and humidity of the external environment are large, the circulation mode can be adopted, so that the energy consumption of the air conditioner 2 is reduced.
Specifically, including pipeline 4, air conditioner 2 and fan 3 are located the opposite both sides of cell 1 respectively, and pipeline 4 intercommunication fan 3 and air conditioner 2, and when temperature and humidity control subassembly was in circulation mode, fan 3 was bloied to air conditioner 2 through pipeline 4. The air conditioner 2 and the fan 3 are respectively arranged at two opposite sides of the small chamber 1, so that the flow of gas in the small chamber 1 can be promoted, the local overheating of air in the small chamber 1 is avoided, and electric equipment in the small chamber 1 can dissipate heat well. In this embodiment, the conduit 4 is arranged outside the cell 1.
Specifically, the small chamber 1 is provided with an air inlet 7, the temperature and humidity control assembly comprises a plugging plate (not shown in the figure), the plugging plate is used for plugging the air inlet 7, the temperature and humidity control assembly also has an energy-saving mode, when the temperature and humidity control assembly is in the energy-saving mode, the air conditioner 2 is closed, the plugging plate is opened, and the fan 3 pumps gas in the small chamber 1 out of the small chamber 1. Through setting up energy-conserving mode, when external environment temperature is lower (for example winter), outside cold air can directly get into cell 1 through air intake 7, and at this moment, no longer need air conditioner 2 to cool down to the air, can further save the energy consumption like this.
Specifically, each cell 1 is internally provided with an infrared imager 9, the infrared imagers 9 are electrically connected with the control unit, and the infrared imagers 9 are used for detecting the temperature of electric equipment in the cell 1. Through setting up infrared imager 9, can conveniently look over the temperature of the consumer in every cell 1 to judge whether the consumer has overheated phenomenon, in time troubleshoot consumer latent trouble.
Specifically, the air conditioner 2 and the blower 3 are respectively located at two opposite sides of the chamber 1, and the second temperature and humidity sensor 6 is adjacent to the blower 3. It can be understood that, in the chamber 1, the fan 3 is farthest from the air conditioner 2, the air temperature around the fan 3 is highest, and the second temperature and humidity sensor 6 is adjacent to the fan 3, so that the highest temperature in the chamber 1 can be detected, thereby facilitating the control of the opening and closing of the temperature and humidity control assembly.
Specifically, the touch screen 8 is arranged outside the cabinet body 100, and the touch screen 8 is electrically connected with the control unit. Through setting up touch-control screen 8, can be through the opening and closing of every cell 1 temperature and humidity control subassembly of touch-control screen 8 manual control, convenient operation. Of course, the temperature and humidity detected by the first temperature and humidity sensor 5, the second temperature and humidity sensor 6 and the infrared imager 9 can be displayed on the touch screen 8, so that the operator can check conveniently.
The embodiment also provides a temperature and humidity control method for controlling the temperature and humidity of the high-voltage switch cabinet in any one of the embodiments, comprising the following steps:
when the second temperature and humidity sensor 6 detects that the temperature or the humidity in the small chamber 1 is larger than a preset first value, the control unit independently starts the temperature and humidity control component in the small chamber 1;
When the first temperature and humidity sensor 5 detects that the external humidity is smaller than a preset second value, the temperature and humidity control assembly is in an air extraction mode, and the small chamber 1 exchanges gas with the external environment;
when the first temperature and humidity sensor 5 detects that the external humidity is greater than the second value, the temperature and humidity control assembly is in a circulation mode, and the cell 1 is isolated from the external environment.
When the external environment humidity is smaller, the air conditioner 2 can directly extract external air to ventilate the small chamber 1, so that the circulation of the air in the small chamber 1 can be promoted; when the humidity of the external environment is high, the air conditioner 2 can extract the air in the small chamber 1, at this time, the air conditioner 2 can only perform refrigeration operation, and dehumidification of the air is not needed, so that the energy consumption is reduced. In this example, the first value of temperature is 26 ℃, the first value of humidity is 60% rh, and the second value of humidity is 50% rh.
Specifically, the cell 1 is provided with the air intake 7, and temperature and humidity control subassembly includes the shutoff board, and when first temperature and humidity sensor 5 detected that external temperature is less than the third value of predetermineeing, temperature and humidity control subassembly was in energy-conserving mode, and the shutoff board was opened, and external gas directly gets into cell 1 through the air intake 7. Through setting up energy-conserving mode, when external environment temperature is lower (for example winter), outside cold air can directly get into cell 1 through air intake 7, and at this moment, no longer need air conditioner 2 to cool down to the air, can further save the energy consumption like this. In this example, the third value is 18 ℃.
Specifically, the safe temperature of the electric equipment in the cell 1 is T1, each cell 1 is internally provided with an infrared imager 9, the real-time temperature of the electric equipment detected by the infrared imager 9 is T2, and when T2 is more than T1, the temperature and humidity control component starts an air extraction mode or a circulation mode. Through setting up infrared imager 9, can carry out temperature monitoring to the consumer in the cell 1 in real time, it can be understood that, air heat conduction speed is lower, when the consumer generates heat great in the short time, the condition of generating heat of consumer can not be detected immediately to second temperature and humidity sensor 6, therefore, set up infrared imager 9, can report in the unusual first time that the consumer generates heat to make temperature and humidity control subassembly start pumping mode or circulation mode, cool down the cooling to the cell 1, reduce the temperature of the interior air of cell 1, thereby reduce the temperature of consumer.
Specifically, the real-time temperature detected by the first temperature and humidity sensor 5 is T3, the real-time temperature detected by the second temperature and humidity sensor 6 is T4, the temperature difference value Δt=t4-T3 of each cell 1, and if Δt >5 ℃, the control unit alarms. By calculating the temperature difference value delta T of each small chamber 1, the heating condition of electric equipment of each small chamber 1 can be conveniently judged, so that whether the number of air conditioners 2 and fans 3 in the small chamber 1 needs to be increased is judged.
Specifically, the relative temperature difference of each cell 1 can be further determined, wherein the temperature of the cell 1 is recorded as T, the temperature of the cell 1 with the lowest temperature is T min, the relative temperature difference δt= (T-T min)/(T-T3), and the heating condition of different electric devices can be known by determining the relative temperature difference of each cell 1.
In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.
In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (8)
1. The high-voltage switch cabinet is characterized by comprising a cabinet body, wherein a first temperature and humidity sensor and a control unit are arranged outside the cabinet body, the cabinet body comprises a plurality of independent cells, a second temperature and humidity sensor and a temperature and humidity control assembly are arranged in each cell, the temperature and humidity control assembly and the second temperature and humidity sensor in each cell are respectively and electrically connected with the control unit, the control unit can independently control the operation of the temperature and humidity control assembly in each cell according to the temperature in each cell, the temperature and humidity control assembly comprises a fan and an air conditioner, the temperature and humidity control assembly is provided with an air suction mode and a circulation mode, when the temperature and humidity control assembly is in the air suction mode, the fan sucks air in the cell from outside the cabinet body, and when the temperature and humidity control assembly is in the circulation mode, the fan sucks air in the air conditioner from the cell;
the high-voltage switch cabinet further comprises a pipeline, the air conditioner and the fan are respectively positioned at two opposite sides of the small chamber, the pipeline is communicated with the fan and the air conditioner, and when the temperature and humidity control assembly is in the circulation mode, the fan blows air to the air conditioner through the pipeline;
The air conditioner is characterized in that the small chamber is provided with an air inlet, the temperature and humidity control assembly comprises a plugging plate, the plugging plate is used for plugging the air inlet, the temperature and humidity control assembly is also provided with an energy-saving mode, when the temperature and humidity control assembly is in the energy-saving mode, the air conditioner is closed, the plugging plate is opened, and the fan pumps air in the small chamber out of the small chamber;
When the second temperature and humidity sensor detects that the temperature or the humidity in the small chamber is larger than a preset first value, the control unit independently starts the temperature and humidity control assembly in the small chamber; when the first temperature and humidity sensor detects that the external humidity is smaller than a preset second value, the temperature and humidity control assembly is in the air extraction mode, and the small chamber exchanges gas with the outside; when the first temperature and humidity sensor detects that the external humidity is greater than the preset second value, the temperature and humidity control assembly is in the cyclic damage mode, and the cell is isolated from the outside; when the temperature and humidity sensor detects that the external temperature is smaller than a preset third value, the temperature and humidity control assembly is in the energy-saving mode, the plugging plate is opened, and external gas directly enters the small chamber through the air inlet.
2. The high-voltage switch cabinet according to claim 1, wherein an infrared imager is arranged in each small chamber, the infrared imagers are electrically connected with the control unit, and the infrared imagers are used for detecting the temperature of electric equipment in the small chamber.
3. The high voltage switchgear of claim 1 wherein said air conditioner and said fan are located on opposite sides of said enclosure, respectively, and said second temperature and humidity sensor is adjacent to said fan.
4. The high-voltage switch cabinet according to claim 1, wherein a touch screen is arranged outside the cabinet body, and the touch screen is electrically connected with the control unit.
5. A temperature and humidity control method, characterized by being used for controlling the temperature and humidity of the high-voltage switch cabinet according to any one of claims 1-4, comprising the following steps:
When the second temperature and humidity sensor detects that the temperature or humidity in the small chamber is larger than a preset first value, the control unit independently starts the temperature and humidity control component in the small chamber;
when the first temperature and humidity sensor detects that the external humidity is smaller than a preset second value, the temperature and humidity control assembly is in an air extraction mode, and the small chamber exchanges gas with the external environment;
when the first temperature and humidity sensor detects that the external humidity is greater than the second value, the temperature and humidity control assembly is in a circulation mode, and the small chamber is isolated from the external environment.
6. The method according to claim 5, wherein the chamber is provided with an air inlet, the temperature and humidity control component comprises a plugging plate,
When the first temperature and humidity sensor detects that the external temperature is smaller than a preset third value, the temperature and humidity control assembly is in an energy-saving mode, the plugging plate is opened, and external gas directly enters the small chamber through the air inlet.
7. The method according to claim 6, wherein the safe temperature of the electrical equipment in the cells is T1, each of the cells is provided with an infrared imager, the real-time temperature of the electrical equipment detected by the infrared imager is T2, and when T2> T1, the temperature and humidity control module starts the air extraction mode or the circulation mode.
8. The method according to claim 5, wherein the real-time temperature detected by the first temperature and humidity sensor is T3, the real-time temperature detected by the second temperature and humidity sensor is T4, the temperature difference value Δt=t4-T3 of each of the cells, and the control unit alarms if Δt >5 ℃.
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| CN202210575308.3A CN114923272B (en) | 2022-05-24 | 2022-05-24 | High voltage switchgear and temperature and humidity control method |
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| CN202210575308.3A CN114923272B (en) | 2022-05-24 | 2022-05-24 | High voltage switchgear and temperature and humidity control method |
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| CN110048315A (en) * | 2019-05-14 | 2019-07-23 | 云南电网有限责任公司电力科学研究院 | A kind of high-tension switch cabinet dehumidification system and control method |
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