CN113131370A - Ring main unit condensation preventing system - Google Patents
Ring main unit condensation preventing system Download PDFInfo
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- CN113131370A CN113131370A CN201911397238.1A CN201911397238A CN113131370A CN 113131370 A CN113131370 A CN 113131370A CN 201911397238 A CN201911397238 A CN 201911397238A CN 113131370 A CN113131370 A CN 113131370A
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- cabinet
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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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- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A ring main unit anti-condensation system comprises an outer main unit and an inner main unit, wherein the inner main unit is arranged inside the outer main unit, a cable duct is arranged below the inner main unit, a cable chamber is arranged at the lower part of the inner main unit, a secondary small chamber is arranged at the top layer, and an air outlet is formed in the upper part of the outer main unit; the microenvironment controller is arranged on the side surface of the outer cabinet and supplies air to the outer cabinet through the fan; the air output of the fan is controlled by an intelligent control unit, and a control signal of the intelligent control unit comes from a sensor; the sensor comprises an in-cabinet temperature and humidity sensor for detecting the space in the outer cabinet and an out-cabinet temperature and humidity sensor for detecting the space outside the ring main unit, and the in-cabinet temperature and humidity sensor and the out-cabinet temperature and humidity sensor are connected with the intelligent control unit; the number of the temperature and humidity sensors in the ring main unit is at least one, and at least one sensor is positioned at the top in the ring main unit. The invention creates uniform gradient temperature in small spaces in the ring main unit and the switch cabinet, and destroys the dewing condition.
Description
Technical Field
The invention relates to the technical field of controlling the air environment in a ring main unit.
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, the environment is abominable, and wind and rain is exposed to the sun, ponding snow etc. and the environmental change acutely leads to the damage of electrical equipment easily.
In recent years, the space in the ring main unit is often very narrow along with the improvement of the ring main unit structure.
For example, in terms of height, the standardized ring main unit has a height of 1800mm, and the height of the ring main unit with the secondary cells is 1750mm, that is, the top of the secondary cells completely designed according to the standardization is only 50mm away from the top of the ring main unit. Therefore, the influence of the temperature at the top of the ring main unit on the secondary small chamber is huge, the temperature difference between the inside and the outside of the secondary chamber is obviously influenced by the high temperature at the top, and the condensation phenomenon of the secondary chamber is very serious.
The standardized ring main unit width is only 1150mm, and after the internal width of the ring main unit is deducted, the distance is often only about 100mm, so that the traditional ventilation technology has the defects of large wind resistance and uneven air supply, and a plurality of ventilation dead angles are formed.
The anti-condensation method matched with the existing ring main unit with a narrow internal space needs to be found, and the built-in ultra-thin micro-environment control device is suitable for the narrow space.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme:
a ring main unit anti-condensation system comprises an outer main unit and an inner main unit, wherein the inner main unit is arranged inside the outer main unit, a base groove is arranged below the inner main unit, a cable chamber is arranged at the lower part of the inner main unit, a secondary small chamber is arranged at the top layer, and an air outlet is formed in the upper part of the outer main unit; the microenvironment controller is arranged on the side surface of the outer cabinet and supplies air to the outer cabinet through the fan; the air output of the fan is controlled by an intelligent control unit, and a control signal of the intelligent control unit comes from a sensor; the sensor including be used for detecting the outer cabinet inner temperature and humidity sensor of inner cabinet of space and be used for detecting the outer temperature and humidity sensor of outer cabinet of looped netowrk cabinet outer space, the cabinet in temperature and humidity sensor, the outer temperature and humidity sensor of cabinet link to each other with intelligent control unit. The space in the outer cabinet refers to the space contained in the four walls, the top and the bottom of the outer cabinet, and comprises the space in various electrical cabinets installed in the outer cabinet. The number of the temperature and humidity sensors in the ring main unit is at least one, and at least one sensor is positioned at the top in the ring main unit; the microenvironment controller comprises a shell and a fan; the shell is provided with an air inducing port for inducing air; the fan is arranged in the shell and used for sending the air introduced by the induced draft port into the outer cabinet from the air outlet of the fan. The intelligent control unit can detect whether the temperature and humidity outside the ring main unit suddenly change or not and the temperature and humidity difference inside and outside the ring main unit, so that data are provided for the intelligent control unit, the intelligent control unit can control the fan to supply air according to needs, the temperature and humidity difference is eliminated, balance is achieved, and the purpose of preventing condensation is achieved. The top inside the ring main unit is the place with the highest temperature, so the data is collected at the position. If the looped netowrk cabinet shell is made of metal, then very easily because the weather problem of outside causes the difference in temperature between inside each position of looped netowrk cabinet very big, for example the temperature of top when insolate in summer can be very high, this just has very big meaning to the temperature gradient that detects between the looped netowrk cabinet inner space, if the temperature humidity difference is big in the looped netowrk cabinet, then need control the humiture balance in this region. Especially, under the condition that the distance between the top of the secondary small chamber and the top of the ring main unit is only about 50mm, the temperature difference between the inside and the outside of the secondary chamber can be obviously influenced by the high temperature at the top, and the temperature difference at the top needs to be rapidly eliminated.
The fan can supply air to two sides in the outer cabinet. When the space in the ring main unit is very narrow, air is supplied to two sides through the fan, two air supply modes can be provided, firstly, air is supplied to two sides intermittently, and air is supplied to two sides simultaneously, so that dead angles in the ring main unit can be effectively eliminated.
As a further improvement, the air outlet direction of the fan is adjustable and is controlled by the intelligent control unit. According to the needs, can control to arbitrary one side air-out, also can be to both sides air-out simultaneously.
As a further improvement, the two sides of the housing are provided with housing air outlets capable of controlling opening and closing, and the opening and closing of the housing air outlets are controlled by the intelligent control unit. According to the needs, can control to arbitrary one side air-out, also can be to both sides air-out simultaneously.
As a further improvement, a secondary fan synchronously opened and closed with the fan is arranged inside the outer cabinet, the direction of the air outlet flow of the secondary fan is the same as the direction of the air flow sent out by the fan, and the secondary fan is controlled by an intelligent control unit. Because the space in the ring main unit is very narrow and small, the circulation of one fan cannot be formed, and therefore the air can be exhausted in the same direction as the air flow sent by the fan at the position where the air flow sent by the fan can reach according to the secondary fan, so that the circulation surrounding the inner cabinet can be formed.
As a further improvement, the fan is a horizontal fan. The horizontal fan can supply air on a long and narrow surface. In a narrow space, a vertical wide air zone can be formed by using the horizontal fan, the air flow is convenient to diffuse up and down, and the air supply dead angle is favorably eliminated.
As a further improvement, the secondary air receiving fan is a horizontal fan.
As a further improvement, the microenvironment controller is arranged on the outer side wall of the outer cabinet. Because the looped netowrk cabinet inner space is often very narrow and small, can solve because of the too little of cabinet inner space, the difficult problem of unable built-in installation with microenvironment controller installation at the lateral wall of outer cabinet, its function is the same with the effect. The purpose of further eliminating dead angles is also achieved.
As a further improvement, the number of the temperature and humidity sensors in the cabinet is at least two, and at least one sensor is positioned in the secondary chamber. Can use humiture data of humiture sensor in the cabinet between the different positions to contrast, for example the numerical value contrast of the humiture sensor who is located the humiture sensor in the secondary cell and the humiture sensor who is located the top in the looped netowrk cabinet, this is the position that leads to the condensation because of inside and outside difference in temperature when the summer insolate most easily.
As a further improvement, a foundation trench air inlet duct used for supplying air to the foundation trench is arranged between the foundation trench and the external space of the ring main unit, an openable bottom air return opening is arranged between the outer cabinet and the foundation trench, the sensor further comprises a foundation trench temperature and humidity sensor used for detecting the foundation trench, and the opening and closing of the bottom air return opening is controlled by an intelligent control unit. Air flow in the base groove enters the ring main unit from the air return opening at the bottom of the box by supplying air to the base groove, so that the temperature and humidity of the base groove and the temperature and humidity in the ring main unit are balanced.
As a further improvement, a base groove air inlet duct used for supplying air to the base groove is arranged between the base groove and the external space of the ring main unit, a base groove air outlet which can be opened and closed in a controllable mode is arranged between the base groove and the external space of the ring main unit, the sensor further comprises a base groove temperature and humidity sensor used for detecting the base groove, signals of the base groove temperature and humidity sensor are provided for the intelligent control unit, and the opening and closing of the base groove air outlet are controlled by the intelligent control unit. The temperature and humidity in the base groove and the temperature and humidity in the ring main unit are balanced by supplying air into the base groove and supplying air into the ring main unit.
As a further improvement, a foundation trench air inlet duct used for supplying air to the foundation trench is arranged between the foundation trench and the external space of the ring main unit, a foundation trench air outlet capable of being opened and closed is arranged between the foundation trench and the external space of the ring main unit, an openable bottom air return opening is arranged between the outer cabinet and the foundation trench, the sensor further comprises a foundation trench temperature and humidity sensor used for detecting the foundation trench, signals of the foundation trench temperature and humidity sensor are provided for the intelligent control unit, and the opening and closing of the bottom air return opening and the foundation trench air outlet are controlled by the intelligent control unit. The temperature and humidity in the base groove and the temperature and humidity in the ring main unit are balanced by supplying air into the base groove and supplying air into the ring main unit.
As a further improvement, the fan comprises an outer cabinet air inlet fan and a base groove air inlet fan, the outer cabinet air inlet fan is positioned in a first air channel communicated with the outer cabinet and the outer side of the ring main unit, the base groove air inlet fan is positioned in a second air channel communicated with the base groove and the outer side of the ring main unit, and the first air channel and the second air channel are not communicated with each other.
As a further improvement, the microenvironment controller also comprises a return air window, the return air window is communicated with the air outlet of the fan inside the shell, signals of the base groove temperature and humidity sensor are provided for the intelligent control unit, and the opening, closing and opening sizes of the return air window are controlled by the intelligent control unit. The return air window is used for forming internal circulation in the space in the ring main unit and the base groove.
As a further improvement, the microenvironment controller also comprises a return air window, the return air window is communicated with the first air channel, signals of the base groove temperature and humidity sensor are provided for the intelligent control unit, and the opening, closing and opening sizes of the return air window are controlled by the intelligent control unit. The return air window is used for forming internal circulation in the space of the ring main unit.
The invention has the advantages that: the uniform gradient temperature from the top to the bottom can be built in small spaces in the ring main unit and the switch cabinet, so that the high-temperature layers at equal distances between the switch cabinet and the ring main unit are close to each other, the dewing condition is destroyed, and the technical effect that no dewing occurs in the switch cabinet (a secondary chamber, a cable chamber), the ring main unit and a ring main unit base groove is achieved.
Drawings
FIG. 1 is a diagram of one embodiment of the present invention;
FIG. 2 is a diagram of another embodiment of the present invention;
FIG. 3 is a block diagram of a micro-environment controller of the present invention;
FIG. 4 is another block diagram of the micro-environment controller of the present invention;
the graphic symbols are explained as follows: 1. an outer cabinet; 11. an air outlet; 2. an inner cabinet; 21. a secondary cell; 22. a cable chamber; 3. a base groove; 31. a return air inlet at the bottom of the box; 32. a base groove air outlet; 33. a base tank air inlet duct; 34. a fan in the air inlet duct of the base tank; 4. The space in the outer cabinet; 5. the ring main unit is arranged in the outer space; 6. a microenvironment controller; 61. a housing; 62. a fan; 63. an air inducing port; 641. an air outlet of the shell; 65. an intelligent control unit; 66. a return air window; 67. a secondary air fan; 71. a temperature and humidity sensor in the cabinet; 72. a temperature and humidity sensor outside the cabinet; 73. a base groove temperature and humidity sensor.
Detailed Description
In order to more clearly describe the technical contents of the present invention, the following further description is made in conjunction with fig. 1 to 4.
As shown in fig. 1 to 4, the ring main unit is a ring main unit, and is an anti-condensation system of the ring main unit, the ring main unit includes an outer cabinet 1 and an inner cabinet 2, the inner cabinet 2 is installed inside the outer cabinet 1, a cable chamber 22 is arranged at the lower part of the inner cabinet 2, and a secondary chamber 21 is arranged at the top layer. The microenvironment controller 6 is installed on the side of the outer cabinet 1 and supplies air into the outer cabinet 1 through the fan 62. The outer cabinet 1 refers to a cabinet body of a ring main unit which is directly contacted with an external space, and the inner cabinet 2 refers to various electrical cabinets which are placed in the ring main unit, including a switch cabinet, a cable cabinet and the like.
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 very 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.
The secondary fan 67 is installed on one side far away from the fan 62 in fig. 1, and when the fan 62 blows air to one direction, the phenomenon of weakness appears when the secondary fan 67 is reached, and the turbulent flow appears in the latter half easily, which can lead to dead air blowing. After the secondary fan 67 and the fan 62 are synchronously started, relay type air supply can be effectively formed, and dead corners are prevented. The secondary air fan 67 may be installed in more than one direction, and the air supply direction must be consistent with the air supply direction of the fan 62.
In embodiment 1, as shown in fig. 1, the blower 62 is connected to the housing air outlets 641 at two sides, so that the blower 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 blower 62. The technical scheme has low price and low energy consumption.
In embodiment 2, as shown in fig. 2, two fans 62 are respectively disposed on two sides of the microenvironment controller 6, and air can be supplied to one of the two fans 62 by controlling any one of the fans 62, so that dead space can be eliminated by intermittently turning on one of the fans 62, and when outdoor weather changes severely, the two fans 62 can be turned on simultaneously to increase air intake.
How to control the temperature and humidity balance between the inner space 4 of the outer cabinet of the ring main unit, the inner cabinet 2 and the base groove 3 is described below with reference to fig. 3 and 4, so as to achieve the purpose of eliminating condensation.
As shown in fig. 3, which is an embodiment, the ring main unit anti-condensation system includes an outer main unit 1 and an inner main unit 2, the inner main unit 2 is installed inside the outer main unit, a base groove 3 is arranged below the inner main unit 2, and an air outlet 11 is formed at the upper part of the outer main unit 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 sensor including be used for detecting the interior temperature and humidity sensor 71 of outer cabinet inner space 4 and be used for detecting the outer temperature and humidity sensor 72 of looped netowrk cabinet outer space 5, the cabinet in temperature and humidity sensor 71, the outer temperature and humidity sensor 72 of cabinet link to each other with intelligent control unit 65. The number of the temperature and humidity sensors 71 in the ring main unit is two, and one sensor is arranged at the top in the ring main unit. The outside-cabinet temperature and humidity sensor 72 is installed at the rear part of the air inlet, so that the temperature and humidity of air introduced from the outside of the ring main unit can be measured most accurately. There is base groove air inlet duct 33 between base groove 3 and the looped netowrk cabinet exterior space, in fig. 3, 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, there is the base groove air outlet 32 of controllable switching between base groove 3 and the looped netowrk cabinet exterior space, outer cabinet 1 and base groove 3 between have the bottom of the case return air inlet 31 that can open and close, the sensor still including the base groove temperature and humidity sensor 73 that is used for detecting base groove 3, the signal of base groove temperature and humidity sensor 73 provides intelligent control unit 65, the switching of bottom of the case return air inlet 31, base groove air outlet 32 be controlled by intelligent control unit 65. The microenvironment controller 6 further comprises a return air window 66, the return air window 66 is communicated with an 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 sizes of the return air window 66 are controlled by the intelligent control unit 65.
The embodiment of fig. 3 can achieve the purpose of eliminating the condensation in the following ways and is not limited to the following ways:
the direct irradiation of sunlight can cause the temperature on the shell 61 at the top of the ring main unit to suddenly rise, and particularly, the sudden exposure in summer can cause the temperature at the top of the ring main unit to rise in a short time. This just makes the inside top layer temperature of looped netowrk cabinet 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 the inner wall in the interior cabinet 2 to produce the condensation owing to the difference in temperature with outer cabinet inner space 4. 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, and the external temperature of the ring main unit is lower than the temperature of the top in the ring main unit, and the external humidity of the ring main unit is not particularly high, the air induction port 63 is opened, the air return window 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, so that the 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 conditions of the inner wall. Even if the temperature of the top in the ring main unit is not particularly high, the external air inlet mode can be started regularly, so that the temperature inside and outside the ring main unit is balanced.
When the external humidity of the ring main unit is too high or the temperature is too high, the air induction port 63 is closed, the air return window 66 is opened, the fan 62 is started in an internal circulation mode, outdoor high-temperature and high-humidity air is prevented from entering the box, the upper and lower temperature difference in the ring main unit is reduced, and the condensation condition between the inside of the ring main unit and the outside of the switch cabinet is damaged.
When the temperature in the base groove 3 is detected to be lower than the temperature in the ring main unit, the detection data of the in-cabinet temperature and humidity sensor 71 arranged in the inner cabinet 2 or the lower part of the inner space 4 in the outer cabinet can be compared with the detection data of the base groove temperature and humidity sensor 73, the temperature outside the ring main unit is higher than the temperature in the base groove 3, when the temperature outside the ring main unit is not high, the induced air opening 63 is opened, the fan 34 in the air inlet channel of the base groove is opened, air with higher temperature outside the ring main unit is introduced, the temperature in the base groove 3 is increased, and the temperature in the base groove 3 is balanced with the temperature at the lower part of the inner cabinet.
When the humidity in the base groove 3 is low, the air return opening 31 at the bottom of the box 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 main unit is lower than the temperature in the base groove 3 or the external humidity of the ring main unit is not high, the induced air opening 63 is closed, the return air window 66 is opened, the air in the ring main unit and the air in the base groove 3 can be integrated, and the internal temperature of the ring main unit and the internal temperature of the base groove 3 are balanced.
When the outside humidity of looped netowrk cabinet is low and the interior humidity of basic groove 3 is high, open fan 34 in the basic groove air inlet duct, open induced air mouth 63, close return air window 66, will adopt the outside low humid air of looped netowrk cabinet to replace the interior humid air of basic groove 3, make humid air discharge from basic groove air outlet 32, until the value that the humidity reduces in the basic groove 3 and expects to reach, just stop.
Although the secondary fan 67 is not shown in fig. 3, the fan 62 is not shown in the form of a horizontal fan. The embodiment of fig. 3 may be further modified by installing an overfire air fan 67 and the fan 62 may be a cross fan. The particular design of the overfire air fan 67 and fan 62 using a cross fan is illustrated in fig. 4 for ease of understanding.
As shown in fig. 4, are some variations from fig. 3. The problem of because of the cabinet space is too little, unable built-in installation is solved, its function is the same with the effect. Unlike fig. 3, 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 external space 5 of the ring main unit and the base tank 3. Another difference from fig. 3 is that the box bottom air return opening 31 is not provided, so when the temperature and humidity balance in the ring main unit and the base tank 3 needs to be achieved, the only way is to supply air to the ring main unit and the base tank 3 at the same time. What is different is that the outside-cabinet temperature and humidity sensor 72 is installed on the outer side wall of the ring main unit, so that although the accuracy of measuring the temperature and humidity of the air introduced from the outside of the ring main unit can be reduced, the measurement is less interfered.
As shown in fig. 4, the fan 62 is a horizontal fan, and forms a long and narrow air supply belt extending up and down, and in the space inside the ring main unit where the distance between the outer cabinet and the inner cabinet is often only about ten centimeters, the fan can significantly improve the air supply area and eliminate dead angles.
Claims (15)
1. The utility model provides a condensation system is prevented to looped netowrk cabinet, looped netowrk cabinet include outer cabinet and interior cabinet, and interior cabinet is installed in the inside of outer cabinet, is the foundation ditch under the interior cabinet, and interior cabinet lower part is the cable chamber, and the top layer is secondary cell, its characterized in that:
an air outlet is arranged at the upper part of the outer cabinet;
the microenvironment controller is arranged on the side surface of the outer cabinet and supplies air to the outer cabinet through the fan; the air output of the fan is controlled by an intelligent control unit, and a control signal of the intelligent control unit comes from a sensor;
the sensors comprise an in-cabinet temperature and humidity sensor for detecting the space in the outer cabinet and an out-cabinet temperature and humidity sensor for detecting the space outside the ring main unit, and the in-cabinet temperature and humidity sensor and the out-cabinet temperature and humidity sensor are connected with the intelligent control unit; the number of the temperature and humidity sensors in the ring main unit is at least one, and at least one sensor is positioned at the top in the ring main unit;
the microenvironment controller comprises a shell and a fan;
the shell is provided with an air inducing port for inducing air; the fan is arranged in the shell and used for sending the air introduced by the induced draft port into the outer cabinet from the air outlet of the fan.
2. The ring main unit condensation prevention system of claim 1, wherein: the fan can supply air to two sides in the outer cabinet.
3. The ring main unit condensation prevention system of claim 2, wherein: the air outlet direction of the fan is adjustable and controlled by the intelligent control unit.
4. The ring main unit condensation prevention system of claim 2, wherein: the shell is provided with shell air outlets capable of being controlled to be opened and closed on two sides, and the opening and closing of the shell air outlets are controlled by the intelligent control unit.
5. The ring main unit condensation prevention system of claim 1, wherein: a secondary fan synchronously opened and closed with the fan is arranged inside the outer cabinet, and the direction of the air outlet flow of the secondary fan is the same as that of the air flow sent out by the fan; the secondary air fan is controlled by the intelligent control unit.
6. The ring main unit condensation prevention system as claimed in any one of claims 1 to 5, wherein: the fan is a horizontal fan.
7. The ring main unit condensation prevention system of claim 6, wherein: the secondary fan is a horizontal fan.
8. The ring main unit condensation prevention system of claim 1, wherein: the microenvironment controller is arranged on the outer side wall of the outer cabinet.
9. The ring main unit condensation prevention system of claim 1, wherein: the number of the temperature and humidity sensors in the cabinet is at least two, and at least one sensor is positioned in the secondary chamber.
10. The ring main unit condensation prevention system of claim 1, wherein: there is the basic groove air inlet duct that is used for supplying air to the basic groove between basic groove and the looped netowrk cabinet exterior space, outer cabinet and basic groove between have openable bottom of the case return air inlet, the sensor still including the basic groove temperature and humidity sensor that is used for detecting the basic groove, the switching of bottom of the case return air inlet be controlled by intelligent control unit.
11. The ring main unit condensation prevention system of claim 1, wherein: there is the basic groove air inlet duct that is used for supplying air to the basic groove between basic groove and the looped netowrk cabinet exterior space, there is the basic groove air outlet between basic groove and the looped netowrk cabinet exterior space, the sensor still including the basic groove temperature and humidity sensor who is used for detecting the basic groove, the signal of basic groove temperature and humidity sensor provides intelligent control unit, the switching of basic groove air outlet be controlled by intelligent control unit.
12. The ring main unit condensation prevention system of claim 1, wherein: there is the basal trough air inlet duct that is used for supplying air to the basal trough between basal trough and the looped netowrk cabinet exterior space, there is the basal trough air outlet between basal trough and the looped netowrk cabinet exterior space, outer cabinet and basal trough between have openable bottom of the case return air inlet, the sensor still including the basal trough temperature and humidity sensor who is used for detecting the basal trough, the signal of basal trough temperature and humidity sensor provides intelligent control unit, the switching of bottom of the case return air inlet, basal trough air outlet be controlled by intelligent control unit.
13. The ring main unit condensation preventing system as claimed in any one of claims 10 to 12, wherein: the fan include outer cabinet air inlet fan and base groove air inlet fan, outer cabinet air inlet fan is located the first wind channel outside intercommunication outer cabinet and the looped netowrk cabinet, base groove air inlet fan is located the second wind channel outside intercommunication base groove and the looped netowrk cabinet, first wind channel and second wind channel are not communicated each other.
14. The ring main unit condensation preventing system as claimed in any one of claims 10 to 12, wherein: the microenvironment controller also comprises a return air window, the return air window is communicated with the air outlet of the fan inside the shell, the signal of the base groove temperature and humidity sensor is provided for the intelligent control unit, and the opening, closing and opening sizes of the return air window are controlled by the intelligent control unit.
15. The ring main unit condensation prevention system of claim 13, wherein: the microenvironment controller also comprises a return air window, the return air window is communicated with the first air channel, signals of the base groove temperature and humidity sensor are provided for the intelligent control unit, and the opening, closing and opening sizes of the return air window are controlled by the intelligent control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397238.1A CN113131370A (en) | 2019-12-30 | 2019-12-30 | Ring main unit condensation preventing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911397238.1A CN113131370A (en) | 2019-12-30 | 2019-12-30 | Ring main unit condensation preventing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113131370A true CN113131370A (en) | 2021-07-16 |
Family
ID=76767867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911397238.1A Pending CN113131370A (en) | 2019-12-30 | 2019-12-30 | Ring main unit condensation preventing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113131370A (en) |
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2019
- 2019-12-30 CN CN201911397238.1A patent/CN113131370A/en active Pending
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