CN110932145B - Anti-condensation control method for ring net cage - Google Patents
Anti-condensation control method for ring net cage Download PDFInfo
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- CN110932145B CN110932145B CN201911392677.3A CN201911392677A CN110932145B CN 110932145 B CN110932145 B CN 110932145B CN 201911392677 A CN201911392677 A CN 201911392677A CN 110932145 B CN110932145 B CN 110932145B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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Abstract
The invention relates to an anti-condensation control method for a ring net cage, which provides the ring net cage, wherein the ring net cage comprises an outer cabinet, an inner cabinet arranged in the outer cabinet and a base groove arranged at the lower part of the outer cabinet, an air outlet is formed in the outer cabinet, a micro-environment controller is arranged beside the outer cabinet and comprises a shell, a fan and an intelligent control unit, an air induction port for introducing air and an air outlet for supplying air are formed in the shell, the fan is arranged in the shell to supply air into the outer cabinet through the air outlet, and the intelligent control unit controls the fan to supply air according to a sensor signal arranged on the ring net cage, so that air flow flows around the inner cabinet, and the temperature difference between the inside and the outside of the ring net cage is reduced. The method can control the air environment in the ring main unit and prevent condensation from being generated in the ring main unit.
Description
Technical Field
The invention belongs to the technical field of electric ring main units, and particularly relates to an anti-condensation control method for a ring net cage.
Background
With the continuous expansion of the construction scale of the smart power grid and the popularization of local automatic remote control, the outdoor ring main unit is widely applied due to the advantages of small investment, short construction period, standardized production and the like. Because the cabinet body protective effect is limited, and the environment of locating is abominable, like blow, rain hit, insolate, ponding, snow etc. lead to the damage of electrical equipment easily.
Patent No. 201720513151.6 provides a looped netowrk cabinet to microenvironment regulation and control in the cabinet, but this looped netowrk cabinet does not consider the condensation requirement of preventing of the cubical switchboard top layer secondary room of present configuration, has only solved the cable chamber accuse temperature and has prevented the condensation, still need solve the adverse effect that the basic groove of looped netowrk box lower part brought. Especially, the space in the ring net box is often very small, and the distance between the space outside the switch cabinet and the ring net box is often only about ten centimeters, so that dead corners are easily generated in the traditional air supply mode. Meanwhile, as the metal shell is mostly arranged outside the ring net cage, the heat conduction is very fast, the temperature and the humidity in the ring net cage are easily influenced by outdoor weather, and the requirement for fast temperature and humidity adjustment cannot be met by a mode of slowly discharging hot air from the upper part through a hot air rising principle. Therefore, although the technology of the patent solves certain technical problems when controlling the temperature and the humidity in the annular net cage, the problems still need to be solved.
It is desirable to find a way to control the microenvironment within the annular cage that is compatible with the internal environment of the integral annular cage.
Disclosure of Invention
The invention aims to provide an anti-condensation control method for a ring net box, which can control the air environment in the ring net box and prevent condensation from being generated in the ring net box.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a ring net box condensation prevention control method, this method provides a ring net box to through the interior air circumstance of control ring net box, prevent to produce the condensation in the ring net box, the ring net box includes outer cabinet, locates the interior cabinet of outer cabinet and locates the basal trough of outer cabinet lower part, the last air exit of having seted up of outer cabinet, the outer cabinet side is equipped with little environmental controller, little environmental controller includes shell, fan and intelligent control unit, be equipped with the induced air mouth that is used for introducing the air and the air outlet that is used for supplying air on the shell, the fan is installed in the shell to pass through the air outlet with the air that the induced air mouth was introduced and supply air in to outer cabinet, intelligent control unit controls the fan according to the sensor signal control fan air supply that locates on the ring net box, so that the air current flows around the inner cabinet, reduces the interior outside difference in temperature of ring net box, prevents to produce the condensation.
Further, the sensors comprise an outer cabinet temperature and humidity sensor and an inner cabinet temperature and humidity sensor, the outer cabinet temperature and humidity sensor is arranged outside the outer cabinet to detect the temperature and humidity outside the ring net cage, the inner cabinet temperature and humidity sensor is arranged inside the outer cabinet to detect the temperature and humidity inside the ring net cage, and the intelligent control unit controls the fan to work according to signals of the outer cabinet temperature and humidity sensor and the inner cabinet temperature and humidity sensor.
Furthermore, at least two temperature and humidity sensors are arranged in the outer cabinet, at least one of the temperature and humidity sensors is arranged at the top in the outer cabinet, at least one of the temperature and humidity sensors is arranged at the middle or lower part in the outer cabinet, and the intelligent control unit controls the fan to work according to the signal comparison of the temperature and humidity sensors in the cabinets at different positions.
Further, when the temperature value of the temperature and humidity sensor arranged at the top in the outer cabinet is higher than that of the temperature and humidity sensor outside the cabinet by more than 5 ℃ and the temperature value of the temperature and humidity sensor arranged at the top in the outer cabinet is higher than 25 ℃, the fan is started to introduce outdoor air.
Further, when the temperature value of the temperature and humidity sensor in the cabinet arranged at the top in the outer cabinet is higher than the temperature values of the temperature and humidity sensors in other cabinets by more than 3 ℃, the fan is started to introduce outdoor air.
Furthermore, an air return opening is formed in the outer cabinet of the shell, and the intelligent control unit controls the opening and closing of the air inlet and the air return opening according to signals of the temperature and humidity sensor outside the cabinet and the temperature and humidity sensor inside the cabinet.
Further, when the humidity value of the temperature and humidity sensor outside the cabinet reaches above 85% RH, the air induction port is closed, and the air return port is opened, so that the air in the outer cabinet circulates in the space between the outer cabinet and the inner cabinet through the air return port.
Furthermore, the microenvironment controller further comprises a base groove air inlet duct connected with the base groove, an air duct fan is arranged in the base groove air inlet duct, a base groove air outlet which is directly connected to the outside of the annular net cage is formed in the base groove, a base groove temperature and humidity sensor is arranged in the base groove, and the intelligent control unit controls the air duct fan to work according to signals of the outside temperature and humidity sensor, the inside temperature and humidity sensor and the base groove temperature and humidity sensor so as to send the air outside the annular net cage into the base groove and enable the temperature and humidity balance between the base groove and the inside of the outer cabinet to be achieved.
Furthermore, a cabinet bottom air return port is arranged between the base groove and the outer cabinet, and the intelligent control unit controls air in the base groove to enter the outer cabinet from the cabinet bottom air return port according to signals of the temperature and humidity sensor outside the cabinet, the temperature and humidity sensor in the cabinet and the temperature and humidity sensor in the base groove, so that temperature and humidity balance between the base groove and the inner part of the outer cabinet is achieved.
Furthermore, the ring net cage further comprises a communication module, and the intelligent control unit is connected with the communication module so as to carry out data communication with an external system through a communication network.
Compared with the prior art, the invention has the following beneficial effects: the method provides the ring main unit capable of controlling the air environment in the ring main unit to prevent condensation from being generated in the ring main unit, the ring main unit optimizes and improves the safe operation environment of electrical equipment in the ring main unit, air is supplied into the ring main unit at intervals, dead angles of space in the ring main unit are eliminated, the influence of environment changes such as temperature and humidity mutation outside the ring main unit on the environment in the ring main unit is reduced, the temperature and humidity in the ring main unit are kept balanced, the condensation condition is damaged from the source, condensation is eliminated, and the ring main unit has strong practicability and wide application prospect.
Drawings
Fig. 1 is a schematic structural view of a ring net cage according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a ring net cage according to another embodiment of the present invention.
FIG. 3 is a schematic view of an air blowing method according to an embodiment of the present invention.
FIG. 4 is a schematic view of an air supply method according to another embodiment of the present invention.
In the figure: 1. outer cabinet, 11, the air exit, 2, interior cabinet, 3, the base tank, 31, cabinet bottom return air inlet, 32, the base tank air outlet, 33, base tank air inlet duct, 34, the wind channel fan in the base tank air inlet duct, 4, the space between outer cabinet, the interior cabinet, 5, the outer space of looped netowrk case, 6, little environmental controller, 61, shell, 62, the fan, 63, the induced air mouth, 64, the air outlet, 65, the intelligent control unit, 66, the return air inlet, 71, temperature and humidity sensor in the cabinet, 72, the outer humiture sensor of cabinet, 73, base tank humiture sensor.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
The invention provides an anti-condensation control method for a ring net cage, which is used for preventing condensation in the ring net cage by controlling the air environment in the ring net cage, and as shown in figure 1, the ring net cage comprises an outer cabinet 1, an inner cabinet 2 arranged in the outer cabinet and a base groove 3 arranged at the lower part of the outer cabinet. The outer cabinet 1 is a cabinet body in which the ring net cage is directly contacted with an external space, and the inner cabinet 2 is various electrical cabinets placed in the outer cabinet, including a switch cabinet, a high-voltage cabinet and the like. The air exit 11 has been seted up on the outer cabinet 1, 1 side of outer cabinet is equipped with microenvironment controller 6, microenvironment controller 6 includes shell 61, fan 62 and intelligent control unit 65, be equipped with the induced air mouth 63 that is used for introducing the air on the shell 61 and the air outlet 64 that is used for supplying air, fan 62 is installed in shell 61 to the air that introduces air mouth 63 passes through air outlet 64 and supplies air in to outer cabinet, intelligent control unit 65 is according to the sensor signal control fan air supply of locating ring box on the box, so that the air current flows around the inner cabinet, reduces the inside and outside difference in temperature of ring box, prevents that the condensation from producing.
When air is supplied to one direction, airflow surrounding the inner cabinet 2 is formed in the ring main unit, but because the distance between the outer cabinet 1 and the inner cabinet 2 is small, the airflow is greatly blocked, so that dead corners where a lot of airflows do not flow through are formed, and the dead corners can be different from other positions in temperature and humidity. These dead corners can be effectively eliminated by blowing air to both sides by the fan 62. Two air supply modes can be adopted, firstly, air is supplied to one side, the dead angle at the moment is generated at the other side of the air outlet direction of the fan 62, air is supplied to the other side after a period of time, and the purpose of eliminating the dead angle can be achieved. In one embodiment shown in fig. 3, the fan 62 is connected to the air outlets 64 at two sides, so that the fan 62 can be controlled to supply air to any side, and the dead angle can be eliminated by intermittently adjusting the air supply direction of the fan 62. The technical scheme has low price and low energy consumption. In another embodiment as shown in fig. 4, two fans 62 are disposed on two sides of the microenvironment controller 6, and any one of the fans 62 is controlled to supply air to one of the two sides, so that the dead space can be eliminated by intermittently turning on one of the fans 62, and when the outdoor weather changes severely, the two fans 62 can be turned on simultaneously to increase the intake air.
The sensors comprise an outer cabinet temperature and humidity sensor 72 and an inner cabinet temperature and humidity sensor 71, wherein the outer cabinet temperature and humidity sensor is arranged outside the outer cabinet and used for detecting the temperature and humidity outside the ring net cage, the inner cabinet temperature and humidity sensor is arranged inside the outer cabinet and used for detecting the temperature and humidity inside the ring net cage, and the intelligent control unit 65 controls the fan to work according to signals of the outer cabinet temperature and humidity sensor and the inner cabinet temperature and humidity sensor. Preferably, at least two temperature and humidity sensors are arranged in the outer cabinet, at least one of the temperature and humidity sensors is arranged at the top in the outer cabinet, at least one of the temperature and humidity sensors is arranged at the middle or lower part in the outer cabinet, and the intelligent control unit controls the fan to work according to the signal comparison of the temperature and humidity sensors in the cabinets at different positions. In this embodiment, when the temperature value of the temperature and humidity sensor inside the cabinet at the top inside the outer cabinet is higher than the temperature value of the temperature and humidity sensor outside the cabinet by more than 5 ℃, and the temperature value of the temperature and humidity sensor inside the cabinet at the top inside the outer cabinet is higher than 25 ℃, the fan is started to introduce the outdoor air. When the temperature value of the temperature and humidity sensor arranged at the top in the outer cabinet is higher than the temperature values of the temperature and humidity sensors in other cabinets and exceeds 3 ℃, the fan is started to introduce outdoor air.
The shell 61 is provided with an air return opening 66 facing the outer cabinet, and the intelligent control unit 65 controls the opening and closing of the air inlet 63 and the air return opening 66 according to signals of the temperature and humidity sensor 72 outside the cabinet and the temperature and humidity sensor 71 inside the cabinet. In this embodiment, when the humidity value of the outside temperature and humidity sensor reaches above 85% RH, the air inlet is closed, and the air return opening is opened, so that the air in the outside cabinet circulates in the space between the outside cabinet and the inside cabinet through the air return opening.
The microenvironment controller 6 further comprises a base groove air inlet duct 33 connected with the base groove 3, an air duct fan 34 is arranged in the base groove air inlet duct 33, a base groove air outlet 32 which is directly connected to the outside of the annular net cage is arranged on the base groove 3, a base groove temperature and humidity sensor 73 is arranged in the base groove 3, and the intelligent control unit 65 controls the air duct fan 34 to work according to signals of the outside-cabinet temperature and humidity sensor 72, the inside-cabinet temperature and humidity sensor 71 and the base groove temperature and humidity sensor 73 so as to send air outside the annular net cage into the base groove and enable temperature and humidity balance between the base groove and the inside of the outer cabinet to be achieved. In this embodiment, when the humidity value of the base tank temperature and humidity sensor 73 reaches above 85% RH, the base tank air outlet 32 is opened, and the air duct fan 34 is opened.
A cabinet bottom air return opening 31 is arranged between the base groove 3 and the outer cabinet 1, and the intelligent control unit 65 controls air in the base groove 3 to enter the outer cabinet 1 from the cabinet bottom air return opening 31 according to signals of the cabinet outer temperature and humidity sensor 72, the cabinet inner temperature and humidity sensor 71 and the base groove temperature and humidity sensor 73, so that temperature and humidity balance between the base groove 3 and the outer cabinet 1 is achieved. In this embodiment, when the temperature value of the temperature and humidity sensor in the cabinet located at the middle or lower part in the outer cabinet is higher than the temperature value of the temperature and humidity sensor in the base tank by more than 1 ℃, the air duct fan is turned on, and the air return opening at the bottom of the cabinet is turned on.
The air return opening 63 is communicated with the air inlet duct 33 of the base groove, and the intelligent control unit 65 controls the opening and closing of the air return opening 66 and the air return opening 31 at the bottom of the cabinet according to signals of the temperature and humidity sensor 72 outside the cabinet and the temperature and humidity sensor 71 inside the cabinet, so that air flow circulates between the space between the outer cabinet and the inner cabinet and the base groove.
The ring net box further comprises a communication module, and the intelligent control unit is connected with the communication module so as to be in data communication with an external system through a communication network.
The following describes how to control the temperature and humidity balance between the space 4 between the outer cabinet and the inner cabinet of the ring net cage, the inside of the inner cabinet 2 and the base groove 3 to achieve the purpose of eliminating condensation by combining with fig. 1 and fig. 2.
As shown in fig. 1, which is an embodiment of the present invention, the ring main unit includes an outer cabinet 1, an inner cabinet 2 and a base tank 3, and an air outlet 11 is opened at the upper part of the outer cabinet 1; the microenvironment controller 6 is arranged on the side surface of the outer cabinet 1 and supplies air to the outer cabinet 1 through the fan 62; the air output of the fan 62 is controlled by an intelligent control unit 65, and a control signal of the intelligent control unit 65 is derived from a sensor; the microenvironment controller 6 comprises a shell 61 and a fan 62; the shell 61 is provided with an air inducing port 63 for introducing air; the fan 62 is arranged in the shell 61 and is used for sending the air introduced by the air inducing port 63 into the outer cabinet 1 from the air outlet of the fan 62; the fan 62 can supply air to two sides in the outer cabinet 1. The sensors comprise an in-cabinet temperature and humidity sensor 71 for detecting the space 4 between the outer cabinet and the inner cabinet and an out-cabinet temperature and humidity sensor 72 for detecting the space 5 outside the ring net cage, and the in-cabinet temperature and humidity sensor 71 and the out-cabinet temperature and humidity sensor 72 are connected with the intelligent control unit 65. The number of the temperature and humidity sensors 71 in the cabinet is two, and one sensor is arranged at the top in the ring net box. The outside-cabinet temperature and humidity sensor 72 is installed at the rear part of the air inlet, and can most accurately measure the temperature and humidity of air introduced from the outside of the ring main unit. There is base groove air inlet duct 33 between base groove 3 and the looped netowrk case exterior space, in fig. 1, the air current of base groove air inlet duct 33 gets into from induced air mouth 63, flows through in microenvironment controller 6's the shell 61, has got into base groove air inlet duct 33, has fan 62 in the base groove air inlet duct 33, be equipped with the base groove air outlet 32 of controllable switching between base groove 3 and the looped netowrk case exterior space, there is openable closed cabinet end return air inlet 31 between outer cabinet 1 and the base groove 3, the sensor is still including the base groove temperature and humidity sensor 73 that is used for detecting base groove 3, and the signal of base groove temperature and humidity sensor 73 provides intelligent control unit 65, the switching of cabinet end return air inlet 31, base groove air outlet 32 is controlled by intelligent control unit 65. The microenvironment controller 6 further comprises a return air inlet 66, the return air inlet 66 is communicated with the air outlet of the fan 62 in the shell 61, signals of the base groove temperature and humidity sensor 73 are provided for the intelligent control unit 65, and the opening, closing and opening of the return air inlet 66 are controlled by the intelligent control unit 65.
The embodiment of fig. 1 can achieve the purpose of eliminating the condensation in the following ways and is not limited to the following ways:
the direct incidence of sunlight can cause the shell 61 at the top of the ring main unit to be suddenly raised, and particularly, the sudden exposure in summer can cause the temperature at the top of the ring main unit to be raised within a short time. This just makes the inside top layer temperature of looped netowrk case rise suddenly, and when the short time difference in temperature reached a definite value, the inner space of interior cabinet 2 can lead to binding post and inner wall in the interior cabinet 2 to produce the condensation owing to with the difference in temperature of outer cabinet, space 4 between the interior cabinet. When the temperature and humidity of the temperature and humidity sensor 71 in the ring main unit at different positions are compared, when the temperature of the top in the ring main unit is too high, the temperature of the outside of the ring main unit is lower than the temperature of the top in the ring main unit, and the temperature of the outside of the ring main unit is not particularly high, the air induction port 63 is opened, the air return port 66 is closed, the fan 62 is opened, the intelligent control unit 65 automatically controls the air inlet mode outside the fan 62 according to the detected temperature and humidity data, hot air at the top in the ring main unit is discharged, the temperature difference between the inside and the outside of the ring main unit and the switch cabinet is reduced, and the condensation condition between the inner wall of the ring main unit and the outside of the switch cabinet is damaged. Even if the temperature of the top in the ring net cage is not particularly high, the external air inlet mode can be started at regular time, so that the temperature inside and outside the ring net cage is balanced.
When the external humidity or the temperature of the ring net box is too high, the air induction port 63 is closed, the air return port 66 is opened, and the fan 62 is started in an internal circulation mode, so that outdoor high-temperature and high-humidity air is prevented from entering the box, the temperature difference between the upper part and the lower part in the ring net box is reduced, and the condensation conditions between the inside of the ring net box and the outside of the switch cabinet are damaged.
When the temperature in the base groove 3 is detected to be lower than the temperature in the ring net box, the detection data of the in-cabinet temperature and humidity sensor 71 arranged in the inner cabinet 2 or at the lower part of the space 4 between the outer cabinet and the inner cabinet can be compared with the detection data of the base groove temperature and humidity sensor 73, the external temperature of the ring net box is higher than the temperature in the base groove 3, when the external humidity of the ring net box is not high, the air induction port 63 is opened, the fan 34 in the air inlet channel of the base groove is opened, air with higher temperature outside the ring net box is introduced, the temperature in the base groove 3 is raised, and the temperature in the base groove 3 is balanced with the temperature at the lower part of the inner cabinet 2.
When the humidity in the base groove 3 is low, the air return opening 31 at the bottom of the cabinet is opened, and the air in the base groove 3 enters the inside of the ring main unit, so that the high-temperature air at the top in the ring main unit can be discharged.
When the external temperature of the ring net cage is lower than the internal temperature of the base tank 3 or the external humidity of the ring net cage is not high, the induced air port 63 is closed, and the return air port 66 is opened, so that the air in the ring net cage and the air in the base tank 3 can be integrated, and the internal temperature of the ring net cage and the internal temperature of the base tank 3 are balanced.
When the outside humidity of looped netowrk case is low and the interior humidity of base groove 3 is high, open fan 34 in the base groove air inlet duct, open induced air mouth 63, close return air mouth 66, will adopt the outer low humid air of looped netowrk case to replace the interior humid air of base groove 3, make humid air discharge from base groove air outlet 32, until the interior humidity of base groove 3 reduces when the numerical value that expects to reach, just stop.
In order to realize remote monitoring or remote control, the ring main unit can also be provided with a cloud communication module which is connected with the intelligent control unit, so that the remote control intelligent control unit is realized, and the remote monitoring or remote control of the whole microenvironment controller 6 is realized.
As shown in fig. 2, is another embodiment of the present invention with some variations from fig. 1. Microenvironment controller 6 is installed on the lateral wall of outer cabinet 1, installs microenvironment controller 6 on the lateral wall of outer cabinet 1 can reduce the influence that microenvironment controller 6 self shared space is to the air flow in the looped netowrk case, reaches the purpose at further elimination dead angle. Unlike fig. 1, the base tank air inlet duct 33 is connected in a different manner. Although the base tank air inlet duct 33 is still located between the base tank 3 and the external space of the ring main unit, the base tank air inlet duct 33 directly connects the ring main unit external space 5 and the base tank 3. Another difference from fig. 1 is that the cabinet bottom air return opening 31 is not provided, so when the temperature and humidity balance in the ring net cage and the base groove 3 needs to be achieved, the only way is to supply air to the ring net cage and the base groove 3 simultaneously. What is different is that the outside-cabinet temperature and humidity sensor 72 is installed on the outer side wall of the outside-ring-network-box cabinet, so that although the accuracy of measuring the temperature and humidity of air introduced from the outside of the ring-network-box can be reduced, the measurement is less interfered.
The above are preferred embodiments of the present invention, and all changes made according to the technical scheme of the present invention that produce functional effects do not exceed the scope of the technical scheme of the present invention belong to the protection scope of the present invention.
Claims (4)
1. The method is characterized in that the ring net cage is provided, so that condensation in the ring net cage is prevented by controlling the air environment in the ring net cage, the ring net cage comprises an outer cabinet, an inner cabinet arranged in the outer cabinet and a base groove arranged at the lower part of the outer cabinet, an air outlet is formed in the outer cabinet, a micro-environment controller is arranged beside the outer cabinet and comprises a shell, a fan and an intelligent control unit, an air inlet for introducing air and an air outlet for supplying air are formed in the shell, the fan is installed in the shell to supply air into the outer cabinet through the air outlet, and the intelligent control unit controls the fan to supply air according to a sensor signal arranged on the ring net cage, so that air flow flows around the inner cabinet, the temperature difference between the inside and the outside of the ring net cage is reduced, and condensation is prevented;
the intelligent control unit controls the fan to work according to signals of the outside-cabinet temperature and humidity sensor and the inside-cabinet temperature and humidity sensor;
at least two in-cabinet temperature and humidity sensors are arranged in the outer cabinet, at least one of the in-cabinet temperature and humidity sensors is arranged at the top in the outer cabinet, at least one of the in-cabinet temperature and humidity sensors is arranged at the middle or lower part in the outer cabinet, and the intelligent control unit controls the fan to work according to the signal comparison of the in-cabinet temperature and humidity sensors at different positions; when the temperature value of the temperature and humidity sensor arranged at the top in the outer cabinet is higher than that of the temperature and humidity sensor outside the cabinet by more than 5 ℃ and the temperature value of the temperature and humidity sensor arranged at the top in the outer cabinet is higher than 25 ℃, the fan is started to introduce outdoor air; when the temperature value of the temperature and humidity sensor in the cabinet arranged at the top in the outer cabinet is higher than the temperature values of the temperature and humidity sensors in other cabinets by more than 3 ℃, the fan is started to introduce outdoor air;
the microenvironment controller also comprises a base groove air inlet duct connected with the base groove, an air duct fan is arranged in the base groove air inlet duct, a base groove air outlet which is directly communicated with the outside of the annular net cage is arranged on the base groove, a base groove temperature and humidity sensor is arranged in the base groove, and the intelligent control unit controls the air duct fan to work according to signals of the outside temperature and humidity sensor, the inside temperature and humidity sensor and the base groove temperature and humidity sensor so as to send air outside the annular net cage into the base groove and enable temperature and humidity balance between the base groove and the inside of the outer cabinet to be achieved; and a cabinet bottom air return port is arranged between the base groove and the outer cabinet, and the intelligent control unit controls air in the base groove to enter the outer cabinet from the cabinet bottom air return port according to signals of the temperature and humidity sensor outside the cabinet, the temperature and humidity sensor in the cabinet and the temperature and humidity sensor in the base groove, so that the temperature and humidity balance between the base groove and the outer cabinet is achieved.
2. The method for controlling the anti-condensation of the annular net cage according to claim 1, wherein an air return opening is formed in the outer shell facing the outer cabinet, and the intelligent control unit controls the opening and closing of the air inlet opening and the air return opening according to signals of a temperature and humidity sensor outside the cabinet and a temperature and humidity sensor inside the cabinet.
3. The method for controlling the anti-condensation of the annular net cage according to claim 2, wherein when the humidity value of the temperature and humidity sensor outside the cabinet reaches above 85% RH, the air inlet is closed, and the air return inlet is opened, so that the air in the outer cabinet circulates in the space between the outer cabinet and the inner cabinet through the air return inlet.
4. The method for controlling the anti-condensation of the ring net cage according to any one of claims 1 to 3, wherein the ring net cage further comprises a communication module, and the intelligent control unit is connected with the communication module so as to perform data communication with an external system through a communication network.
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| CN112117665B (en) * | 2020-08-31 | 2022-12-27 | 国网安徽省电力有限公司六安供电公司 | Dehumidification control method and system for matching switch cabinet group |
| CN112421444A (en) * | 2020-10-30 | 2021-02-26 | 国网河北省电力有限公司行唐县供电分公司 | Prevent electrical switchgear of condensation |
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