CN117810818A - A system and method for preventing condensation on a ring main unit - Google Patents
A system and method for preventing condensation on a ring main unit Download PDFInfo
- Publication number
- CN117810818A CN117810818A CN202311710458.1A CN202311710458A CN117810818A CN 117810818 A CN117810818 A CN 117810818A CN 202311710458 A CN202311710458 A CN 202311710458A CN 117810818 A CN117810818 A CN 117810818A
- Authority
- CN
- China
- Prior art keywords
- main unit
- ring main
- temperature
- condensation
- humidity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- 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
- H02B1/24—Circuit arrangements for boards or switchyards
-
- 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
-
- 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
- H02B1/32—Mounting of devices therein
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a system and a method for preventing condensation of a ring main unit, which belong to the technical field of maintenance of power distribution equipment, wherein the system comprises: the temperature and humidity signal acquisition module is used for acquiring temperature and humidity data inside the ring main unit and temperature data on the surface of the ring main unit; the signal processing module is used for calculating the dew point temperature of the ring main unit according to the temperature and humidity data in the ring main unit, calculating the difference value between the dew point temperature in the ring main unit and the surface temperature of the ring main unit, and controlling the starting of the condensation removal execution module according to the difference value; the condensation removing execution module is used for converting moisture in the ring main unit into condensed water and discharging the condensed water out of the ring main unit. The invention effectively eliminates the condensation in the ring main unit, ensures the safety of equipment and personnel, reduces the working time and prolongs the service life of the ring main unit.
Description
Technical Field
The invention belongs to the technical field of power distribution equipment maintenance, and particularly relates to a system and a method for preventing condensation of a ring main unit.
Background
The ring main unit is an outgoing switch cabinet of each distribution branch of the annular distribution network. The annular distribution network, namely the power supply trunk line, forms a closed annular distribution network, and the ring main units are connected end to end in sequence to form an annular shape, so that each distribution branch can be used for taking power from the left trunk line and the right trunk line, and the power supply reliability is improved.
With the development of distribution network, the more and more the cable quantity, annular distribution network and looped netowrk cabinet are because of can providing distribution reliability, and shared proportion is bigger and bigger in the electric wire netting construction, but generally exists the condensation phenomenon in looped netowrk cabinet actual operation, in case take place the condensation and form the corruption to looped netowrk cabinet part mechanism, lead to insulation degree decline, seriously influence equipment operation.
The condensation phenomenon is caused by the fact that cables and equipment in the ring main unit run to generate heat, so that the temperature in the box body is higher than the temperature outside the box body, and finally condensed water is formed. The existing dehumidification and condensation prevention mode adopts a traditional dehumidification mode, namely, holes are punched in a cabinet of the ring main unit and the ventilation pipe is used for the dehumidification, so that the mode has a dehumidification effect to a certain extent, but the operability is poor, and the problem of condensation in the ring main unit cannot be fundamentally solved; the other mode is to install a heater and a condensation sensor in the cabinet, and the switching of the heater is controlled by the condensation sensor, so that the heater needs to be started after condensation is formed, and certain hysteresis exists, so that the effect is poor.
This is a deficiency of the prior art, and therefore, it is highly desirable to provide a system and method for preventing condensation in a ring main unit, which address the above-mentioned deficiencies in the prior art.
Disclosure of Invention
Aiming at the defects that the ring main unit in the prior art is used as a part of an annular power distribution network, more and more ring main units are applied, but the condensation phenomenon in the ring main units affects the insulation performance of a cabinet body, the traditional punching condensation removing mode has poor operability, and the mode of adding a heater and a condensation sensor has certain hysteresis, the invention provides a ring main unit condensation preventing system and a ring main unit condensation preventing method, and aims to solve the technical problems.
In a first aspect, the present invention provides a ring main unit condensation prevention system, including:
the temperature and humidity signal acquisition module is used for acquiring temperature and humidity data inside the ring main unit and temperature data on the surface of the ring main unit;
the signal processing module is used for calculating the dew point temperature of the ring main unit according to the temperature and humidity data in the ring main unit, calculating the difference value between the dew point temperature in the ring main unit and the surface temperature of the ring main unit, and controlling the starting of the condensation removal execution module according to the difference value;
the condensation removing execution module is used for converting moisture in the ring main unit into condensed water and discharging the condensed water out of the ring main unit.
Further, the temperature and humidity signal acquisition module comprises a humidity sensor, a first temperature sensor and a second temperature sensor;
the humidity sensor and the first temperature sensor are arranged inside the ring main unit, wherein the humidity sensor is used for acquiring humidity data inside the ring main unit, and the first temperature sensor is used for acquiring temperature data inside the ring main unit;
the second temperature sensor is arranged on the surface of the ring main unit and is used for collecting the surface temperature of the ring main unit;
the humidity sensor, the first temperature sensor and the second temperature sensor are all connected with the signal processing module.
Further, the signal processing module comprises a shell and a central controller;
the central controller is arranged inside the shell;
the central controller comprises a dew point temperature calculation module and a condensation removal condition analysis module;
the dew point temperature calculating unit is used for calculating the dew point temperature T0 of the ring main unit according to the temperature T1 and the humidity H data in the ring main unit:
T0=α×T1+(1-α)×H
wherein alpha is a fixed coefficient;
the condensation removal condition analysis unit is used for carrying out difference operation on the temperature T2 of the outer surface of the ring main unit and the dew point temperature T0, judging that the condensation removal execution module does not have the condensation formation condition when the difference value is negative, and judging that the condensation removal execution module has the condensation formation condition when the difference value is positive.
Further, the condensation removal execution module includes a housing;
the front panel of the shell is provided with an air port, the rear panel of the shell is provided with a fan, and one side plate of the shell is provided with a drain pipe;
a condensing plate, a semiconductor refrigerating sheet, a power supply and an execution controller are arranged in the shell;
the condensing plate is vertically arranged, the front plate surface of the condensing plate faces the air port, the cold surface of the semiconductor refrigerating sheet is attached to the rear plate surface of the condensing plate, the hot surface of the semiconductor refrigerating sheet is connected with a power supply, and the power supply is connected with the execution controller;
the power supply and the execution controller are also connected with the fan;
the front plate surface of the condensing plate is provided with a converging groove and a plurality of longitudinal drainage grooves, and the converging groove is arranged at the lower part of the longitudinal drainage grooves and is communicated with each longitudinal drainage groove;
the converging groove is communicated with the drain pipe;
the execution controller receives the instruction of the information processing module, controls the fan to operate, sucks damp and hot air, controls the semiconductor refrigerating sheet to be electrified, and takes away the cold surface heat of the semiconductor refrigerating sheet by the hot surface, so that the temperature of the condensing plate is reduced, the damp and hot air is condensed into water drops when meeting the condensing plate, reaches the converging groove along the longitudinal drainage groove, and is finally discharged through the drainage pipe.
Further, the central controller adopts a singlechip;
the shell of the central controller is made of cast aluminum;
the first temperature sensor and the second temperature sensor are thermistor type sensors;
the humidity sensor adopts a capacitive humidity sensor.
In a second aspect, the invention provides a method for preventing condensation of a ring main unit, comprising the following steps:
s1, acquiring temperature and humidity data inside a ring main unit and temperature data on the surface of the ring main unit;
s2, calculating the dew point temperature of the ring main unit according to the temperature and humidity data in the ring main unit, calculating the difference value between the dew point temperature in the ring main unit and the surface temperature of the ring main unit, and controlling the starting of the condensation removal execution module according to the difference value;
s3, starting the condensation removal execution module to convert moisture in the ring main unit into condensed water, and discharging the condensed water out of the ring main unit.
Further, the specific steps of step S1 are as follows:
s11, a first temperature sensor, a humidity sensor and a condensation removal execution module are arranged in the ring main unit in advance;
s12, a second temperature sensor is arranged on the surface of the ring main unit in advance.
Further, the specific steps of step S2 are as follows:
s21, the central controller wirelessly collects temperature data of the first temperature sensor and the second temperature sensor and humidity data of the humidity sensor to determine temperature T1 and humidity H inside the ring main unit and temperature T2 on the surface of the ring main unit;
s22, calculating dew point temperature T0 of the ring main unit according to temperature T1 and humidity H data in the ring main unit:
T0=α×T1+(1-α)×H
wherein alpha is a fixed coefficient;
s23, performing difference operation on the temperature T2 of the outer surface of the ring main unit and the dew point temperature T0;
when the difference is negative, the process proceeds to step S24;
when the difference is positive, the process proceeds to step S25;
s24, judging that the condensation forming condition is not met, and returning to the step S21;
s25, judging that the condensation forming condition is met, starting a condensation removing execution module, and entering step S3.
Further, α is 0.81.
Further, the specific steps of step S3 are as follows:
s31, after the execution controller receives a control instruction of the central controller, controlling the fan to operate and controlling the semiconductor refrigerating sheet to be electrified;
s32, operating a fan to suck the hot and humid air in the ring main unit from the air inlet;
s33, taking off the heat of the cold face of the semiconductor refrigeration sheet by the hot face, and reducing the temperature of a condensing plate attached to the cold face;
s34, condensing the hot and humid air into water droplets when meeting the condensing plate, enabling the water droplets to reach the converging groove along the longitudinal drainage groove, and finally discharging the water droplets through the drainage pipe.
The invention has the beneficial effects that:
the system and the method for preventing the ring main unit from condensation provided by the invention realize effective elimination of condensation in the ring main unit, ensure the safety of equipment and personnel, reduce the working time and prolong the service life of the ring main unit.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
It can be seen that the present invention has outstanding substantial features and significant advances over the prior art, as well as the benefits of its implementation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a control schematic diagram of a ring main unit condensation prevention system according to the present invention.
Fig. 2 is a schematic diagram of a front structure of the condensation removal execution module of the present invention.
Fig. 3 is a schematic view of a back fan structure of the condensation removal execution module of the present invention.
FIG. 4 is a schematic diagram of the internal structure of the condensation removal execution module according to the present invention.
Fig. 5 is a schematic view of the structure of the condensing plate of the present invention.
Fig. 6 is a flow chart of an embodiment of a method for preventing condensation in a ring main unit according to the present invention.
Fig. 7 is a flow chart of another embodiment of the method for preventing condensation of a ring main unit according to the present invention.
In the figure, a temperature and humidity signal acquisition module is 1; 2-a signal processing module; 3-a condensation removal execution module; 4-a humidity sensor; 5-a first temperature sensor; 6-a second temperature sensor; 7-a central controller; 7.1-a dew point temperature calculation module; 7.2-a condensation removal condition analysis module; 8-a housing; 9-tuyere; 10-a fan; 11-a drain pipe; 12-condensing plate; 13-semiconductor refrigerating sheets; 14-a power supply; 15-an execution controller; 16-a longitudinal drainage groove; 17-sink groove.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Example 1:
as shown in fig. 1, the present invention provides a ring main unit condensation preventing system, which includes:
the temperature and humidity signal acquisition module 1 is used for acquiring temperature and humidity data inside the ring main unit and temperature data on the surface of the ring main unit;
the signal processing module 2 is used for calculating the dew point temperature of the ring main unit according to the temperature and humidity data in the ring main unit, calculating the difference value between the dew point temperature in the ring main unit and the surface temperature of the ring main unit, and controlling the starting of the condensation removal execution module according to the difference value;
and the condensation removal execution module 3 is used for converting moisture in the ring main unit into condensed water and discharging the condensed water out of the ring main unit.
Example 2:
as shown in fig. 1, the present invention provides a ring main unit condensation preventing system, which includes:
the temperature and humidity signal acquisition module 1 is used for acquiring temperature and humidity data inside the ring main unit and temperature data on the surface of the ring main unit; the temperature and humidity signal acquisition module 1 comprises a humidity sensor 4, a first temperature sensor 5 and a second temperature sensor 6;
the humidity sensor 4 and the first temperature sensor 5 are arranged inside the ring main unit, wherein the humidity sensor 4 is used for collecting humidity data inside the ring main unit, and the first temperature sensor 5 is used for collecting temperature data inside the ring main unit;
the second temperature sensor 6 is arranged on the surface of the ring main unit and is used for collecting the surface temperature of the ring main unit;
the humidity sensor 4, the first temperature sensor 5 and the second temperature sensor 6 are all connected with the signal processing module 2;
the signal processing module 2 is used for calculating the dew point temperature of the ring main unit according to the temperature and humidity data in the ring main unit, calculating the difference value between the dew point temperature in the ring main unit and the surface temperature of the ring main unit, and controlling the starting of the condensation removal execution module 3 according to the difference value; the signal processing module 2 comprises a housing and a central controller 7;
the central controller 7 is arranged inside the shell; the central controller 7 adopts a singlechip, such as STC89C52 singlechip; the shell material is aluminum, and adopts an aluminum casting process, and simultaneously meets the requirements of 15 cm in length, 10 cm in width and 8 cm in height;
the central controller 7 comprises a dew point temperature calculation module 7.1 and a condensation removal condition analysis module 7.2;
the dew point temperature calculating unit 7.1 is configured to calculate a ring main unit dew point temperature T0 according to temperature T1 and humidity H data inside the ring main unit:
T0=α×T1+(1-α)×H
wherein alpha is a fixed coefficient;
the condensation removal condition analysis unit 7.2 is configured to perform a difference operation on the ring main unit outer surface temperature T2 and the dew point temperature T0, determine that the condensation formation condition is not provided when the difference is negative, determine that the condensation formation condition is provided when the difference is positive, and start the condensation removal execution module 3;
the condensation removal execution module 3 is used for converting moisture in the ring main unit into condensed water and discharging the condensed water out of the ring main unit; as shown in fig. 2, 3, 4 and 5, the condensation removal execution module 3 includes a housing 8;
the front panel of the shell 8 is provided with an air port 9, the rear panel of the shell 8 is provided with a fan 10, and one side plate of the shell 8 is provided with a drain pipe 11;
a condensing plate 12, a semiconductor refrigerating sheet 13, a power supply 14 and an execution controller 15 are arranged in the shell 8;
the condensing plate 12 is vertically arranged, the front plate surface of the condensing plate 12 faces the air port 9, the cold surface of the semiconductor refrigerating sheet 13 is attached to the rear plate surface of the condensing plate 12, the hot surface of the semiconductor refrigerating sheet 13 is connected with the power supply 14, and the power supply 14 is connected with the execution controller 15;
the power supply 14 and the execution controller 15 are also connected with the fan 10;
the front plate surface of the condensing plate 12 is provided with a converging groove 17 and a plurality of longitudinal drainage grooves 16, and the converging groove 17 is arranged at the lower part of the longitudinal drainage grooves 16 and is communicated with each longitudinal drainage groove 16;
the converging groove 17 is communicated with the drain pipe 11;
the execution controller 15 receives the instruction of the information processing module 2, controls the fan 10 to operate, sucks damp and hot air, controls the semiconductor refrigerating sheet 13 to be electrified, and takes away the cold surface heat of the semiconductor refrigerating sheet 13 by the hot surface, so that the temperature of the condensation plate 12 is reduced, the damp and hot air is condensed into water drops when meeting the condensation plate 12, reaches the flow converging groove 17 along the longitudinal drainage groove 16, and is finally discharged through the drainage pipe 11;
the heat of the hot surface of the semiconductor refrigeration sheet is also taken out of the housing of the condensation removal execution module by the rotation of the blower 10.
Example 3:
as shown in fig. 6, the invention provides a method for preventing condensation of a ring main unit, which comprises the following steps:
s1, acquiring temperature and humidity data inside a ring main unit and temperature data on the surface of the ring main unit;
s2, calculating the dew point temperature of the ring main unit according to the temperature and humidity data in the ring main unit, calculating the difference value between the dew point temperature in the ring main unit and the surface temperature of the ring main unit, and controlling the starting of the condensation removal execution module according to the difference value;
s3, starting the condensation removal execution module to convert moisture in the ring main unit into condensed water, and discharging the condensed water out of the ring main unit.
Example 4:
as shown in fig. 7, the invention provides a method for preventing condensation of a ring main unit, which comprises the following steps:
s1, acquiring temperature and humidity data inside a ring main unit and temperature data on the surface of the ring main unit; the specific steps of the step S1 are as follows:
s11, a first temperature sensor, a humidity sensor and a condensation removal execution module are arranged in the ring main unit in advance;
s12, a second temperature sensor is arranged on the surface of the ring main unit in advance;
s2, calculating the dew point temperature of the ring main unit according to the temperature and humidity data in the ring main unit, calculating the difference value between the dew point temperature in the ring main unit and the surface temperature of the ring main unit, and controlling the starting of the condensation removal execution module according to the difference value; the specific steps of the step S2 are as follows:
s21, the central controller wirelessly collects temperature data of the first temperature sensor and the second temperature sensor and humidity data of the humidity sensor to determine temperature T1 and humidity H inside the ring main unit and temperature T2 on the surface of the ring main unit;
s22, calculating dew point temperature T0 of the ring main unit according to temperature T1 and humidity H data in the ring main unit:
T0=α×T1+(1-α)×H
wherein alpha is a fixed coefficient;
s23, performing difference operation on the temperature T2 of the outer surface of the ring main unit and the dew point temperature T0;
when the difference is negative, the process proceeds to step S24;
when the difference is positive, the process proceeds to step S25;
s24, judging that the condensation forming condition is not met, and returning to the step S21;
s25, judging that the condensation forming conditions are met, starting a condensation removing execution module, and entering a step S3;
s3, starting a condensation removal execution module to convert moisture in the ring main unit into condensed water, and discharging the condensed water out of the ring main unit; the specific steps of the step S3 are as follows:
s31, after the execution controller receives a control instruction of the central controller, controlling the fan to operate and controlling the semiconductor refrigerating sheet to be electrified;
s32, operating a fan to suck the hot and humid air in the ring main unit from the air inlet;
s33, taking off the heat of the cold face of the semiconductor refrigeration sheet by the hot face, and reducing the temperature of a condensing plate attached to the cold face;
s34, condensing the hot and humid air into water droplets when meeting the condensing plate, enabling the water droplets to reach the converging groove along the longitudinal drainage groove, and finally discharging the water droplets through the drainage pipe.
Although the present invention has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present invention is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and it is intended that all such modifications and substitutions be within the scope of the present invention/be within the scope of the present invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A system for condensation prevention of a ring main unit, comprising:
the temperature and humidity signal acquisition module is used for acquiring temperature and humidity data inside the ring main unit and temperature data on the surface of the ring main unit;
the signal processing module is used for calculating the dew point temperature of the ring main unit according to the temperature and humidity data in the ring main unit, calculating the difference value between the dew point temperature in the ring main unit and the surface temperature of the ring main unit, and controlling the starting of the condensation removal execution module according to the difference value;
the condensation removing execution module is used for converting moisture in the ring main unit into condensed water and discharging the condensed water out of the ring main unit.
2. The ring main unit anti-condensation system of claim 1, wherein the temperature and humidity signal acquisition module comprises a humidity sensor, a first temperature sensor and a second temperature sensor;
the humidity sensor and the first temperature sensor are arranged inside the ring main unit, wherein the humidity sensor is used for acquiring humidity data inside the ring main unit, and the first temperature sensor is used for acquiring temperature data inside the ring main unit;
the second temperature sensor is arranged on the surface of the ring main unit and is used for collecting the surface temperature of the ring main unit;
the humidity sensor, the first temperature sensor and the second temperature sensor are all connected with the signal processing module.
3. The ring main unit anti-condensation system of claim 2, wherein the signal processing module comprises a housing and a central controller;
the central controller is arranged inside the shell;
the central controller comprises a dew point temperature calculation module and a condensation removal condition analysis module;
the dew point temperature calculating unit is used for calculating the dew point temperature T0 of the ring main unit according to the temperature T1 and the humidity H data in the ring main unit:
T0=α×T1+(1-α)×H
wherein alpha is a fixed coefficient;
the condensation removal condition analysis unit is used for carrying out difference operation on the temperature T2 of the outer surface of the ring main unit and the dew point temperature T0, judging that the condensation removal execution module does not have the condensation formation condition when the difference value is negative, and judging that the condensation removal execution module has the condensation formation condition when the difference value is positive.
4. The ring main unit anti-condensation system according to claim 3, wherein the condensation removal execution module comprises a housing;
the front panel of the shell is provided with an air port, the rear panel of the shell is provided with a fan, and one side plate of the shell is provided with a drain pipe;
a condensing plate, a semiconductor refrigerating sheet, a power supply and an execution controller are arranged in the shell;
the condensing plate is vertically arranged, the front plate surface of the condensing plate faces the air port, the cold surface of the semiconductor refrigerating sheet is attached to the rear plate surface of the condensing plate, the hot surface of the semiconductor refrigerating sheet is connected with a power supply, and the power supply is connected with the execution controller;
the power supply and the execution controller are also connected with the fan;
the front plate surface of the condensing plate is provided with a converging groove and a plurality of longitudinal drainage grooves, and the converging groove is arranged at the lower part of the longitudinal drainage grooves and is communicated with each longitudinal drainage groove;
the converging groove is communicated with the drain pipe;
the execution controller receives the instruction of the information processing module, controls the fan to operate, sucks damp and hot air, controls the semiconductor refrigerating sheet to be electrified, and takes away the cold surface heat of the semiconductor refrigerating sheet by the hot surface, so that the temperature of the condensing plate is reduced, the damp and hot air is condensed into water drops when meeting the condensing plate, reaches the converging groove along the longitudinal drainage groove, and is finally discharged through the drainage pipe.
5. The system of claim 4, wherein the central controller is a single-chip microcomputer;
the shell of the central controller is made of cast aluminum;
the first temperature sensor and the second temperature sensor are thermistor type sensors;
the humidity sensor adopts a capacitive humidity sensor.
6. The condensation preventing method for the ring main unit is characterized by comprising the following steps of:
s1, acquiring temperature and humidity data inside a ring main unit and temperature data on the surface of the ring main unit;
s2, calculating the dew point temperature of the ring main unit according to the temperature and humidity data in the ring main unit, calculating the difference value between the dew point temperature in the ring main unit and the surface temperature of the ring main unit, and controlling the starting of the condensation removal execution module according to the difference value;
s3, starting the condensation removal execution module to convert moisture in the ring main unit into condensed water, and discharging the condensed water out of the ring main unit.
7. The method for preventing condensation of a ring main unit as set forth in claim 6, wherein the step S1 specifically includes the steps of:
s11, a first temperature sensor, a humidity sensor and a condensation removal execution module are arranged in the ring main unit in advance;
s12, a second temperature sensor is arranged on the surface of the ring main unit in advance.
8. The method for preventing condensation of a ring main unit as set forth in claim 7, wherein the step S2 comprises the following specific steps:
s21, the central controller wirelessly collects temperature data of the first temperature sensor and the second temperature sensor and humidity data of the humidity sensor to determine temperature T1 and humidity H inside the ring main unit and temperature T2 on the surface of the ring main unit;
s22, calculating dew point temperature T0 of the ring main unit according to temperature T1 and humidity H data in the ring main unit:
T0=α×T1+(1-α)×H
wherein alpha is a fixed coefficient;
s23, performing difference operation on the temperature T2 of the outer surface of the ring main unit and the dew point temperature T0;
when the difference is negative, the process proceeds to step S24;
when the difference is positive, the process proceeds to step S25;
s24, judging that the condensation forming condition is not met, and returning to the step S21;
s25, judging that the condensation forming condition is met, starting a condensation removing execution module, and entering step S3.
9. The method for preventing condensation of a ring main unit as recited in claim 8, wherein α is 0.81.
10. The method for preventing condensation of a ring main unit as claimed in claim 8, wherein the specific steps of step S3 are as follows:
s31, after the execution controller receives a control instruction of the central controller, controlling the fan to operate and controlling the semiconductor refrigerating sheet to be electrified;
s32, operating a fan to suck the hot and humid air in the ring main unit from the air inlet;
s33, taking off the heat of the cold face of the semiconductor refrigeration sheet by the hot face, and reducing the temperature of a condensing plate attached to the cold face;
s34, condensing the hot and humid air into water droplets when meeting the condensing plate, enabling the water droplets to reach the converging groove along the longitudinal drainage groove, and finally discharging the water droplets through the drainage pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311710458.1A CN117810818A (en) | 2023-12-13 | 2023-12-13 | A system and method for preventing condensation on a ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311710458.1A CN117810818A (en) | 2023-12-13 | 2023-12-13 | A system and method for preventing condensation on a ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117810818A true CN117810818A (en) | 2024-04-02 |
Family
ID=90419657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311710458.1A Pending CN117810818A (en) | 2023-12-13 | 2023-12-13 | A system and method for preventing condensation on a ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117810818A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118466645A (en) * | 2024-04-29 | 2024-08-09 | 国网江苏省电力有限公司南通供电分公司 | Anti-condensation control method, device, apparatus and medium based on optical technology |
-
2023
- 2023-12-13 CN CN202311710458.1A patent/CN117810818A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118466645A (en) * | 2024-04-29 | 2024-08-09 | 国网江苏省电力有限公司南通供电分公司 | Anti-condensation control method, device, apparatus and medium based on optical technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103429026B (en) | A kind of constant temperature energy-saving server cabinet of high accuracy high safe non-detachable mold massing design | |
| CN107069449B (en) | A kind of control method of electric distribution cabinet dehumidifier | |
| CN111355164B (en) | Heat dissipation and ventilation distribution box system and method | |
| CN217307058U (en) | Low-voltage switch cabinet | |
| CN111029949A (en) | Transformer case with dehumidification cooling function | |
| CN104456774A (en) | Heat humidity independently controlled air conditioning system applied to IDC machine room and refrigeration method | |
| CN202975882U (en) | Online intelligent condensation-proof dehumidification system | |
| CN117810818A (en) | A system and method for preventing condensation on a ring main unit | |
| CN106949549A (en) | A kind of railway computer room dual system air-conditioning | |
| CN211880287U (en) | Air-water cooling system of high-voltage frequency converter chamber | |
| CN213660979U (en) | Electronic freezing dehumidification control device for transformer substation | |
| CN2856809Y (en) | Heat pipe heat transferring energy saver for machine room air conditioning system | |
| CN212629014U (en) | Container data center air conditioning system and integrated air conditioning unit | |
| CN207284037U (en) | A kind of server cabinet | |
| CN111049039A (en) | An intelligent control dehumidification device | |
| CN113764987A (en) | Drain-free active intelligent dehumidification system and method for switch cabinet | |
| CN214841352U (en) | Dehumidification system of high-voltage switch cabinet | |
| CN211879921U (en) | An electrical cabinet with dehumidification function | |
| CN218850124U (en) | A 10kV switchgear intelligent dehumidification device | |
| CN211295901U (en) | Intelligent control dehydrating unit | |
| CN2419515Y (en) | Air conditioner for reusing exhausted water and air | |
| CN214746189U (en) | Intelligent comprehensive treatment device for environment of tool room | |
| CN215221317U (en) | Cubical switchboard of intelligence cooling dehumidification | |
| CN105375370A (en) | Intelligent dehumidifying device | |
| CN213602272U (en) | Low-pressure chamber cooling and dehumidifying system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |