CN211183052U - Ring main unit condensation preventing system - Google Patents
Ring main unit condensation preventing system Download PDFInfo
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- CN211183052U CN211183052U CN201922435953.1U CN201922435953U CN211183052U CN 211183052 U CN211183052 U CN 211183052U CN 201922435953 U CN201922435953 U CN 201922435953U CN 211183052 U CN211183052 U CN 211183052U
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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 utility model discloses build even gradient temperature in narrow and small space in the looped netowrk cabinet and the cubical switchboard, destroy its dewfall 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 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 ring main unit 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 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. 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.
As a further improvement, there is the looped netowrk cabinet basal trough air inlet duct that is used for supplying air to the looped netowrk cabinet basal trough between looped netowrk cabinet basal trough and the looped netowrk cabinet exterior space, outer cabinet and looped netowrk cabinet basal trough between have openable bottom of the case return air inlet, the sensor still including the looped netowrk cabinet basal trough temperature and humidity sensor that is used for detecting the looped netowrk cabinet basal trough, the switching of bottom of the case return air inlet be controlled by intelligent control unit. Through supplying air to the ring main unit base groove, airflow in the ring main unit base groove enters the ring main unit from the box bottom air return opening, and the temperature and humidity of the ring main unit base groove and the temperature and humidity in the ring main unit are balanced.
As a further improvement, a ring main unit base groove air inlet channel used for supplying air to the ring main unit base groove is arranged between the ring main unit base groove and the ring main unit outer space, a ring main unit base groove air outlet capable of being opened and closed controllably is arranged between the ring main unit base groove and the ring main unit outer space, the sensor further comprises a ring main unit base groove temperature and humidity sensor used for detecting the ring main unit base groove, signals of the ring main unit base groove temperature and humidity sensor are provided for an intelligent control unit, and the ring main unit base groove air outlet is opened and closed under the control of the intelligent control unit. The temperature and humidity in the ring main unit base groove and the temperature and humidity in the ring main unit are balanced by supplying air into the ring main unit base groove and supplying air into the ring main unit.
As a further improvement, have the looped netowrk cabinet basal trough air inlet duct that is used for supplying air to the looped netowrk cabinet basal trough between looped netowrk cabinet basal trough and the looped netowrk cabinet exterior space, looped netowrk cabinet basal trough air outlet that has controllable switching between looped netowrk cabinet basal trough and the looped netowrk cabinet exterior space, outer cabinet and looped netowrk cabinet basal trough between have openable and closable bottom of the case return air inlet, the sensor still including the looped netowrk cabinet basal trough temperature and humidity sensor who is used for detecting the looped netowrk cabinet basal trough, looped netowrk cabinet basal trough temperature and humidity sensor's signal provides intelligent control unit, bottom of the case return air inlet, the switching of looped netowrk cabinet basal trough air outlet be controlled by intelligent. The temperature and humidity in the ring main unit base groove and the temperature and humidity in the ring main unit are balanced by supplying air into the ring main unit 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 ring main unit 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 portion of the ring main unit, the ring main unit base groove air inlet fan is positioned in a second air channel communicated with the ring main unit base groove and the outer portion 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 ring main unit foundation groove temperature and humidity sensor are provided for the intelligent control unit, and the opening, closing and opening 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 ring main unit base groove.
As a further improvement, the microenvironment controller further comprises a return air window, the return air window is communicated with the first air channel, signals of the ring main unit 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 temperature gradient from the top to the bottom can be built in the narrow space 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 block diagram of a micro-environment controller of the present invention;
FIG. 2 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 ring main unit base groove; 31. a return air inlet at the bottom of the box; 32. an air outlet of the ring main unit base groove; 33. an air inlet duct of a ring main unit base groove; 34. a fan in the air inlet duct of the ring main unit base groove; 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; 71. a temperature and humidity sensor in the cabinet; 72. a temperature and humidity sensor outside the cabinet; 73. ring main unit foundation ditch 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 2.
The utility model provides a condensation system is prevented to looped netowrk cabinet, looped netowrk cabinet include outer cabinet 1 and interior cabinet 2, and interior cabinet 2 is installed in the inside of outer cabinet 1, and interior cabinet 2 includes cable chamber 22, and the top layer of interior cabinet 2 is secondary cell 21, and microenvironment controller 6 installs in the side of outer cabinet 1, through the fan 62 to supply air in the outer cabinet 1. 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.
As shown in fig. 1, 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 ring main unit base groove 3 is arranged below the inner main unit 2, and an air outlet 11 is arranged 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 looped netowrk cabinet base groove air inlet duct 33 between looped netowrk cabinet base groove 3 and the looped netowrk cabinet exterior space, in fig. 1, the air current of looped netowrk cabinet 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 looped netowrk cabinet base groove air inlet duct 33, has fan 62 in looped netowrk cabinet base groove air inlet duct 33, there is the looped netowrk cabinet base groove air outlet 32 of controllable switching between looped netowrk cabinet base groove 3 and the looped netowrk cabinet exterior space, outer cabinet 1 and looped netowrk cabinet base groove 3 between have the bottom of the case return air inlet 31 of openable switching, the sensor still including the looped netowrk cabinet base groove humiture sensor 73 that is used for detecting looped netowrk cabinet base groove 3, the signal of looped netowrk cabinet base groove humiture sensor 73 provides intelligent control unit 65, the opening and closing of bottom return air inlet 31, looped netowrk. 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 ring main unit 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. 1 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 ring main unit 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 ring main unit base groove temperature and humidity sensor 73, the external temperature of the ring main unit is higher than the temperature in the ring main unit base groove 3, when the external humidity of the ring main unit is not high, the air inducing opening 63 is opened, the fan 34 in the air inlet channel of the ring main unit base groove is opened, air with higher temperature outside the ring main unit is introduced, the temperature in the ring main unit base groove 3 is increased, and the temperature in the ring main unit base groove 3 is balanced with the temperature.
When the humidity in the ring main unit base groove 3 is low, the box bottom air return opening 31 is opened, air in the ring main unit base groove 3 enters the inside of the ring main unit, and 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 ring main unit 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 ring main unit base groove 3 can be integrated, and the temperature inside the ring main unit base groove 3 are balanced.
When the outside humidity of looped netowrk cabinet is low and the humidity is high in looped netowrk cabinet foundation tank 3, open fan 34 in the looped netowrk cabinet foundation tank air inlet duct, open induced air mouth 63, close return air window 66, will adopt the outer low humid air of looped netowrk cabinet to replace the interior humid air of looped netowrk cabinet foundation tank 3, make humid air discharge from looped netowrk cabinet foundation tank air outlet 32, until the humidity reduces in the looped netowrk cabinet foundation tank 3 when the numerical value that expects to reach, just stop.
As shown in fig. 2, are some variations from fig. 1. Microenvironment controller 6 install on the lateral wall of outer cabinet 1, install microenvironment controller 6 and can reduce the shared space of microenvironment controller 6 self to the influence that the air flows in the looped netowrk cabinet with the lateral wall of outer cabinet 1, reach the purpose at further elimination dead angle. Different from the figure 1, the connection mode of the ring main unit base groove air inlet duct 33 is different. Although the ring main unit base groove air inlet duct 33 is still located between the ring main unit base groove 3 and the ring main unit outer space, the ring main unit base groove air inlet duct 33 is directly connected with the ring main unit outer space 5 and the ring main unit base groove 3. Another difference from fig. 1 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 ring main unit base groove 3 needs to be achieved, the only way is to supply air to the ring main unit and the ring main unit base groove 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.
Claims (8)
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 cable pit 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 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.
3. The ring main unit condensation prevention system of claim 1, wherein: there is the cable pit air inlet duct that is used for to the cable pit air supply between cable pit and the looped netowrk cabinet exterior space, outer cabinet and cable pit between have openable bottom of the case return air inlet, the sensor still including the cable pit temperature and humidity sensor who is used for detecting the cable pit, the switching of bottom of the case return air inlet be controlled by intelligent control unit.
4. The ring main unit condensation prevention system of claim 1, wherein: there is the cable pit air inlet duct that is used for supplying air to the cable pit between cable pit and the looped netowrk cabinet exterior space, there is the cable pit air outlet of controllable switching between cable pit and the looped netowrk cabinet exterior space, the sensor still including the cable pit temperature and humidity sensor who is used for detecting the cable pit, intelligent control unit is provided with to the signal of cable pit temperature and humidity sensor, the switching of cable pit air outlet be controlled by intelligent control unit.
5. The ring main unit condensation prevention system of claim 1, wherein: there is the cable pit air inlet duct that is used for supplying air to the cable pit between cable pit and the looped netowrk cabinet exterior space, there is the cable pit air outlet of controllable switching between cable pit and the looped netowrk cabinet exterior space, outer cabinet and cable pit between have the bottom of the case return air inlet of open closed, the sensor still including the cable pit temperature and humidity sensor who is used for detecting the cable pit, intelligent control unit is provided to cable pit temperature and humidity sensor's signal, bottom of the case return air inlet, cable pit air outlet's switching be controlled by intelligent control unit.
6. The ring main unit condensation preventing system as claimed in any one of claims 3 to 5, wherein: the fan include outer cabinet air inlet fan and cable pit air inlet fan, outer cabinet air inlet fan is located the first wind channel outside outer cabinet of intercommunication and the looped netowrk cabinet, cable pit air inlet fan is located the second wind channel outside intercommunication cable pit and the looped netowrk cabinet, first wind channel and second wind channel do not communicate each other.
7. The ring main unit condensation preventing system as claimed in any one of claims 3 to 5, 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, signals of the cable duct 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.
8. The ring main unit condensation prevention system of claim 6, wherein: the microenvironment controller further comprises a return air window, the return air window is communicated with the first air channel, signals of the cable duct 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922435953.1U CN211183052U (en) | 2019-12-30 | 2019-12-30 | Ring main unit condensation preventing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922435953.1U CN211183052U (en) | 2019-12-30 | 2019-12-30 | Ring main unit condensation preventing system |
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| CN211183052U true CN211183052U (en) | 2020-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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2019
- 2019-12-30 CN CN201922435953.1U patent/CN211183052U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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