CN207165932U - A kind of ring main unit to study on microenvironment regulation in cabinet - Google Patents
A kind of ring main unit to study on microenvironment regulation in cabinet Download PDFInfo
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- CN207165932U CN207165932U CN201720513151.6U CN201720513151U CN207165932U CN 207165932 U CN207165932 U CN 207165932U CN 201720513151 U CN201720513151 U CN 201720513151U CN 207165932 U CN207165932 U CN 207165932U
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Abstract
A kind of ring main unit to study on microenvironment regulation in cabinet, ring main unit include outer cabinet and high-voltage board, and high-voltage board is arranged on the inside of outer cabinet, has cable connection storehouse in high-voltage board, outer cabinet top is provided with exhaust outlet；Micro environment control device is arranged on the side of outer cabinet, by being blown in the outside cabinet of blower fan；The air output of described blower fan is controlled by intelligent control unit, and the control signal of intelligent control unit derives from sensor；Cable connection is provided with circulation passage on storehouse, for the air circulation between cable connection storehouse and outer cabinet；Described micro environment control device includes shell, blower fan；There is the air-vent for introducing air on described shell；Assembling is in shell, for the air that air-vent introduces to be sent into outer cabinet from fan outlet；Fan outlet is the wind-guiding air outlet that can control downward wire air-supply.Effect of the present utility model is reduction of that ring main unit is inside and outside and the thermograde of various places inside, eliminates cold surface, destroys condensation condition.
Description
Technical field
The present invention relates to the technical field of air ambient in control ring main unit, in particular to a kind of control ring main unit to include it
The temperature in internal cable connection storehouse, the device of humidity.
Background technology
Ring main unit be installed on it is outdoor, because ambient temperature, humidity change run to it and can bring many adverse effects,
Ambient temperature is mutated, and when the temperature difference is projecting in cabinet, ponding can be produced in cabinet when ring main unit cabinet inner surface forms dew point；It is outdoor moist empty
Gas enters cable connection storehouse at the end introducing of high-voltage board bottom and gathered, when temperature and ring main unit cabinet in enclosed type high-voltage switch
Interior temperature jump is hung upside down equally in switch cubicle inwall and insulated part generation condensation triggers high pressure over the ground or alternate flashover.According to electric power
Department statistics, ring main unit electrical equipment malfunction because caused by making moist account for more than 50%.
Prior art mainly prevents that condensation from making moist problem using following three kinds of modes：
The first, electric heater is installed in each high-tension switch cabinet bottom, cable connection storehouse, improving the bin temperature prevents from condensing
Mode.When hanging upside down mutation with the temperature difference in ring main unit cabinet in the cable connection storehouse of switch cubicle bottom closing and form dew point, switch
Condensation is formed in cabinet in the same old way, and ponding problem still has between ring main unit and high-voltage board.Ring main unit high voltage in 10kV ~ 20kV,
As 220V power supplys need to be taken separately to increase a set of high pressure PT cabinets, because the investment for being limited and being installed additional PT cabinets by ring main unit volume is made
About, most ring main units do not set PT cabinets and can not install electric heater additional.
2nd, install dehumidifier additional in ring main unit inwall, to reduce air humidity content in cabinet, reduce cabinet internal water accumulation mode.But
Using dehumidifying Fitness improvement ring main unit and the air humidity content in high-voltage board space, ponding is reduced, can not still be solved in switch cabinet
The outer mutual temperature difference is balanced, and dew point can be equally produced in high-voltage board, and condensation problem does not solve equally.Because ring main unit does not have
220V power supplys, which, which is also restricted, to be implemented.
3rd, air-conditioning is installed additional on ring main unit, air-conditioner wind is directly directed at ring main unit internal electric equipment and carries out air-supply cooling, when
When the aerial temperature and humidity gap that aerial temperature and humidity and air-conditioning in ring main unit are sent into is larger, the air of humiture difference directly impacts
The surface of electrical equipment may can aggravate condensation on the contrary.The technical scheme cost is higher.
This just needs to design a kind of new method for being applied to air microenvironment in control ring main unit, to solve ring main unit
The problem of interior humiture is difficult to control with being condensed in cable connection storehouse.
The content of the invention
The purpose of the present invention is the shortcomings that overcoming above-mentioned prior art, and to solve, humiture in ring main unit is unmanageable and electricity
The problem of being condensed in cable connection storehouse.
To achieve these goals, the present invention is realized using following technical scheme：
A kind of ring main unit to study on microenvironment regulation in cabinet, ring main unit include outer cabinet and high-voltage board, and high-voltage board is arranged on outer cabinet
Inside, have cable connection storehouse in high-voltage board, outer cabinet top is provided with exhaust outlet；Micro environment control device is arranged on the side of outer cabinet,
By being blown in the outside cabinet of blower fan；The air output of described blower fan is controlled by intelligent control unit, the control of intelligent control unit
Signal derives from sensor；Cable connection is provided with circulation passage on storehouse, for the air circulation between cable connection storehouse and outer cabinet；
Described micro environment control device includes shell, blower fan；There is the air-vent for introducing air on described shell；Assembling exists
In shell, for the air that air-vent introduces to be sent into outer cabinet from fan outlet；Fan outlet is to control downward wire
The wind-guiding air outlet of air-supply.
Especially, described micro environment control device is arranged on the side surface upper part of outer cabinet.
Especially, in addition to for sensing current-collecting device, the sensing of described low pressure for the low pressure of micro environment control device power supply
Current-collecting device includes current transformer and induction power supply module, current transformer and the induction power supply module being connected with high-tension cable
It is connected, induction power supply module is connected with micro environment control device.
Especially, described sensor includes being used to detect temperature and humidity sensing in the cabinet in the space between outer cabinet, high-voltage board
Temperature Humidity Sensor and the cable connection storehouse for detection cable connection storehouse outside device and cabinet for detecting the ring main unit external space
Temperature Humidity Sensor, the outer Temperature Humidity Sensor of Temperature Humidity Sensor, cabinet in described cabinet, cable connection storehouse Temperature Humidity Sensor with
Intelligent control unit is connected.
Especially, Temperature Humidity Sensor is located at the top in ring main unit in described cabinet.
Especially, the quantity of Temperature Humidity Sensor is more than one in described cabinet, the sky being distributed between outer cabinet, high-voltage board
In.
Especially, described sensor includes the pneumatic sensor for being used to perceive the air mass flow in outer bottom of cabinet portion, described
Pneumatic sensor is located at outer cabinet bottom, on the air supply direction of blower fan；Described pneumatic sensor and intelligent control unit phase
Even.
Especially, described micro environment control device also includes filter, and described filter is located at air-vent and wind
Between machine.
Especially, described micro environment control device also includes return air window, described return air window be located on the inside of outer cabinet and
Between the inner chamber of micro environment control device, unlatching, closing and the unlatching of return air window it is size-controlled in intelligent control unit.
Especially, the air supply direction of described wind-guiding air outlet is blown vertically downward along outer cabinet madial wall.
Especially, described blower fan is horizontal type blower fan.
Especially, described blower fan is frequency control, and the air flow rate of the blower fan is controlled by intelligent control unit.
Especially, described blower fan is constant speed, and the blower fan is opened or stops being controlled by intelligent control unit.
Especially, described circulation passage is the separation net positioned at cable connection storehouse lower sidewall.
Especially, described wind-guiding air outlet is also equipped with horizontal wind deflector, and horizontal wind deflector is controlled by intelligent control unit.
The advantage of the invention is that：1st, the outer cabinet of ring main unit is established, the humiture space that cable connection storehouse communicates；2nd, exist
Airflow field and the temperature field of equilibrium are established in the space that outer cabinet, cable connection storehouse communicate, air-flow is balancedly flowed through heat source body,
And finally carry heat and steam discharge cabinet；3rd, reduce that ring main unit is inside and outside and the thermograde of various places inside, eliminate cold table
Face, destroy condensation condition；4th, to the environmental Kuznets Curves of progress low energy consumption in ring main unit；5th, the mode of low cost is realized to microenvironment
Controller carries out low-tension supply power supply.
Brief description of the drawings
Fig. 1 is the profile of the present invention；
Fig. 2 is the dimensional structure diagram of the present invention（Cable bin part carries out section signal）；
Fig. 3 is the sectional view of the wind-guiding air outlet of the present invention；
Fig. 4 is another structural representation of the present invention；
Fig. 5 is the circuit control principle figure of the present invention；
Fig. 1 to Fig. 5 symbol description is as follows：
1st, outer cabinet；11st, outer cabinet space；12nd, exhaust outlet；2nd, high-voltage board；3rd, cable connection storehouse；31st, cable；32nd, cable bin
Space；4th, micro environment control device；41st, shell；42nd, blower fan；421st, air inlet；43rd, filter；44th, air-vent；45、
Wind-guiding air outlet；451st, horizontal wind deflector；46th, return air window；47th, inner chamber；51st, current transformer；52nd, induction power supply module；
6th, intelligent control unit；71st, the outer Temperature Humidity Sensor of cabinet；72nd, Temperature Humidity Sensor in cabinet；73rd, cable connection storehouse humiture passes
Sensor；74th, pneumatic sensor；8th, separation net；9th, ring main unit installation foundation.
Embodiment
In order to more clearly describe the technology contents of the present invention, further retouched with reference to Fig. 1 to Fig. 5
State.
Illustratively of the invention general principle first.The ring main unit of the present invention is different from common electric box, ring main unit
Including outer cabinet 1 and high-voltage board 2, high-voltage board 2 is arranged on the inside of outer cabinet 1, and this just needs the environment for not only controlling outer cabinet space 11,
Also need to control the environment in cable bin space 32, that is, need to control the humiture environment in outer cabinet space 11, be by being sent from the external world
The humiture that entering can regulate and control in outer cabinet space 11 after air balances, while also to regulate and control the humiture in cable bin space 32
Environment, and the temperature difference imbalance between different spaces is the main reason for causing condensation, this just needs that outer cabinet sky can be controlled
Between humiture balance between 11 and cable connection storehouse 3, also to control the temperature for reducing outer cabinet space 11 and the space outside regulator cubicle
Humidity differences.
The structure that Fig. 1, Fig. 2 illustrate ring main unit is combined first.As shown in Fig. 2 ring main unit includes outer cabinet 1 and high-voltage board 2, it is high
Press cabinet 2 to be arranged on the inside of outer cabinet 1, have cable connection storehouse 3 in high-voltage board 2, the outer top of cabinet 1 is provided with exhaust outlet 12.In ring main unit
Dew condensation phenomenon mainly appear in outer cabinet 1 and cable connection storehouse 3, condensation harm is maximum particularly in cable connection storehouse 3.
Because cable connection storehouse 3 close to ground, the temperature in cable bin space 32 often can all be less than outer cabinet space 11, if keeping outer cabinet
The temperature in space 11 and cable bin space 32 will be avoided that cable caused by the temperature difference of ring main unit inner space close to dew point is not formed
It is coupled in storehouse 3 and condenses.
In order to solve the above problems, micro environment control device 4 can be installed on ring main unit.Micro environment control device 4 is arranged on outer
The side of cabinet 1, it can be arranged on outside the cabinet of outer cabinet 1 and also be arranged in cabinet, the situation outside cabinet is shown in Fig. 1, Fig. 2.
Structure in cabinet is as shown in figure 4, those skilled in the art can pass through the outside cabinet 1 of blower fan 42 according to micro environment control device 4
Interior air-supply；The air output of described micro environment control device 4 is controlled by intelligent control unit 6, the control signal of intelligent control unit 6
From sensor；The separation net 8 of circulation passage is provided with cable connection storehouse 3, between cable connection storehouse 3 and outer cabinet 1
Air circulation；In ring main unit in the presence of each terraced interlayer temperature difference and micro-pressure-difference, fraction produces laterally shunting in way of blowing,
Remainder is sent to ring main unit bottom；And form the space environment of outer cabinet 1 and the one of cable connection storehouse 3；When blower fan 42 is outside
When cabinet 1 is blown, due to the natural phenomena that hot-air rises, cold air declines, Hot wet air heating after the displacement upper strata out of ring main unit
Exhaust outlet 12 is discharged.
Described micro environment control device 4 includes shell 41, blower fan 42；There is air-vent 44 on described shell 41；Blower fan 42
In shell 41, for the air that air-vent 44 introduces to be sent into outer cabinet 1 from fan outlet；Fan outlet is to control
Make the wind-guiding air outlet 45 of downward wire air-supply；Blower fan 42 introduces air from air-vent 44, enters from wind-guiding air outlet 45 outer
In cabinet 1.
After being blown using above-mentioned structure into ring main unit.When during micro environment control device 4 blows downwards way, fraction
Mix with air in cabinet and spread to both sides, and the airflow portion for reaching ring main unit inner bottom part produces laterally shunting, partial air leads to
Cross separation net 8 to enter in cable connection storehouse, make to be circulated with being exchanged between cable bin space 32 and outer cabinet space 11.When blower fan 42
When introducing air, upper layer of air is discharged from exhaust outlet 12 in ring main unit.Due to temperature ladder layer in ring main unit space be present, temperature compared with
High air is in upper strata, and open-air is endlessly sent into bottom, makes the Hot wet air heating gathered after heat exchange at top, warp
Top exhaust outlet 12 overflows ring main unit, so as to form the displacement of air, it is achieved thereby that externally cabinet space 11, cable bin space
32 cooling-down humidity-controlling, ring main unit make outer cabinet space 11 be formed with high-voltage board 2 and cable bin space 32 during introducing air outside
The balance of humiture.
Micro environment control device 4 can be arranged on to the side surface upper part of outer cabinet 1, by being blown downwards in the outside cabinet 1 of blower fan 42,
Under this situation, the air-flow of most of region generation loss that downwards can be in ring main unit during air-supply.
Blown vertically downward along the outer madial wall of cabinet 1 using wind-guiding air outlet 45.So as to be imitated using the absorption of side wall
Fruit, can also make downwards air-supply during will not excessive loss, in order to avoid produce sinuous flow.In order to coordinate the adsorption effect for utilizing side wall,
Blower fan 42 is formed down air curtain on air-out direction using horizontal type blower fan 42 along side wall.It is small in cable bin width and only
At one, control constant air-out direction enough by wind-guiding air outlet 45, direction can be used to fix for wind-guiding air outlet 45
Air channel；When the width of cable bin is very big, or has multiple cable bins, constant control air-out direction has been insufficient to, this kind
Under situation, horizontal wind deflector 451, the supplement as wind-guiding air outlet 45 can be installed.Described horizontal wind deflector 451 is arranged on and led
Wind air outlet 45, intelligent control unit 6 control the swing of horizontal wind deflector 451, so as to realize horizontal outlet swing in air outlet
Wind, the transverse direction of horizontal wind deflector 451 described above refer to the direction of the left and right in Fig. 3, and horizontal wind deflector 451, which can be used, adjusts wind
Plate, when air regulating board is swung, horizontal pendulum wind can be produced, the air curtain that swings formed against the direction of side wall, so as to by air
The place for being sent to ring main unit bottom can be a line of side wall and bottom connection, so as to be more beneficial for entering cable connection storehouse 32,
And eliminate dead angle.
Separation net 8 can be installed in the lower sidewall of cable connection storehouse 3, be used as circulation passage.Circulation passage can keep electricity
Cable couples between storehouse 3 and the space of outer cabinet 1 in the case of air circulation, the thing such as isolation dust, insect.
Micro environment control device 4 can also install filter 43, and described filter 43 is located at air-vent 44 and blower fan 42
Between, for filtering the air of introducing.
Illustrate return air window 46 with reference to Fig. 1 to Fig. 5, described return air window 46 is located on the inside of outer cabinet and microenvironment control
Between the inner chamber of device processed, unlatching, closing and the unlatching of return air window 46 it is size-controlled in intelligent control unit 6.It is so-called
Inner chamber 47 be that interior space is wrapped in by shell 41.When return air window 46 is closed, the air flow master in ring main unit
To derive from and from air-vent 44 enter open-air, from the discharge air of exhaust outlet 12 after displacement, i.e., carried out in ring main unit with
Outside air exchange；And when return air window 46 is opened, from the major part that air inlet enters in ring main unit
Portion's air, the amount of the air inside ring main unit depend on the size that return air window 46 is opened.I.e. when return air window 46 is opened
Qi Shi, there is a small amount of ring main unit extraneous air to carry out interior circulate with air in ring main unit.Also it can use and introduce outside ring main unit
Air mixes the control model blown into cabinet with part ring main unit inner air, because in temperature and cabinet outside cabinet during avoiding start
Excessive temperature differentials, to reduce outdoor EAT and the temperature difference in cabinet.
When using horizontal type blower fan 42 when, can be blown downwards along the side wall of outer cabinet 1, and produce along the outer side wall of cabinet 1 to
Under air curtain, when in outer cabinet 1 air from return air window 46 enter produce in circulate when, air curtain will stream movable property in ring main unit inner ring
Raw circulation, so as to eliminate the dead angle area in ring main unit.
When return air window 46 is used in combination with filter 43, due to existing in passage of the air-vent 44 into inner chamber
Filter 43, therefore the windage of the air-flow entered from air-vent 44 is larger, and return air window 46 is not due to installing any possibility
Increase the device of windage, therefore what is circulated in ring main unit in progress is not present windage, therefore when return air window 46 is opened, ring
The meeting carried out in net cabinet is internal air circulation, and only a small amount of air will can be introduced from air-vent 44.I.e. when filter 43 and return air
Window 46 simultaneously in the presence of, open return air window 46 when, internal air circulation can be carried out.This kind of technical scheme is applicable to
Reduce the situation that extraneous air flows into.The interference of external environment condition can be reduced, is easier to be mutated especially suitable for some environment
Environment in, such as Thunderstorm Weather, drastically cool many extreme weather, and outside is belonged to for being placed on the ring main unit of outdoor
The humiture of air occurs drastically to change, i.e., when Temperature Humidity Sensor 71 detects that outdoor humiture exceedes setting value outside cabinet,
Blower fan is closed, air is no longer introduced outside ring main unit.Cabinet inner sensor 72 detects temperature with cable bin Temperature Humidity Sensor 73
When difference exceedes setting value, return air window 46 is opened, carries out interior circulate.
The application of return air window 46 is wider, and avoiding the humiture outside cabinet to be mutated as described above causes to influence cabinet
Interior, then the control signal of return air window 46 should derive from Temperature Humidity Sensor 72 in the outer Temperature Humidity Sensor 71 of cabinet and cabinet.Return air
46 mouthfuls of window can also have other applications, such as avoid forming the local excessive temperature difference in case, such as at summer due to possibility of being exposed to the sun
Cause to produce the larger temperature difference with bottom at the top of ring main unit, and cable connection storehouse 3 is located at the bottom of ring main unit, i.e. cable bin space 32
The situation that dew point is formed because of humiture disequilibrium may also be produced between outer cabinet space 11, can be by temperature and humidity sensing in cabinet
The numerical value of device 72 and cable connection storehouse Temperature Humidity Sensor 73 carries out contrast and is used as threshold values to control whether return air window 46 is transported
OK.Controlled by intelligent control unit 6 and open return air window 46 to eliminate above-mentioned hidden danger.It may also set up multiple positioned at diverse location
Temperature Humidity Sensor 72 in cabinet, in different cabinets carrying out contrast between the detection numerical value of Temperature Humidity Sensor 72 is used as threshold values
To control whether return air window 46 runs.In this case, after return air window 46 is opened, interior circulation, ring are carried out in ring main unit
The air of net upper part in cabinet is sent into the bottom and cable bin space 32 in outer cabinet space 11 after entering return air window 46, so that ring
Reach humiture balance inside net cabinet in each space；Return wind transom can also be adjusted when humiture is more than temperature and humidity value in cabinet outside cabinet
46 valve sizes of mouth, the control blown in backward cabinet is mixed with part ring main unit inner air using the air introduced outside ring main unit
Molding formula, to reduce due to air themperature outside cabinet and excessive temperature differentials in cabinet, to reduce outdoor EAT and the temperature difference in cabinet.
General ring main unit does not include low pressure sensing current-collecting device, therefore to install various control devices and be required for from looped network
Power taking beyond cabinet.And increase high pressure PT cabinets in ring main unit, cost can be improved again.And because low pressure used in the present invention senses
Current-collecting device is powered for micro environment control device, and the electric current that described low pressure sensing current-collecting device includes being connected with high-tension cable is mutual
Sensor 51 and induction power supply module 52, current transformer 51 are connected with induction power supply module 52, induction power supply module 52 and micro-loop
Border controller 4 is connected, and is powered for micro environment control device 4.
According to the difference of control mode, different blower fans 42 also may be selected, the blower fan 42 and constant speed if any frequency conversion function
Blower fan 42, intelligent control unit 6 can control frequency conversion fan 42 to carry out air-out with different power, when the blower fan 42 is in long
Between air-out state, need to set Temperature Humidity Sensor in different cabinets, warm outside cabinet in this case in intelligent control unit 6
The operation power of blower fan 42 corresponding to the numerical value of humidity sensor 71；And constant speed blower fan 42 then needs intelligent control unit 6 right
The outer Temperature Humidity Sensor of Temperature Humidity Sensor, cabinet sets threshold values in cabinet, is controlled when the numerical value detected reaches certain threshold values
Blower fan 42 starts.
Using principle of the present invention and said structure, to being carried out in ring main unit by taking the blower fan 42 using constant speed as an example
It is described as follows exemplified by regulation and control：Illustrate the control mode of the present invention with reference to Fig. 4.The outer cabinet 1 of detection, cable connection storehouse 3
Temperature Humidity Sensor 71 outside Temperature Humidity Sensor and cabinet for detecting the outer external space of cabinet 1, is intelligent control in the cabinet in interior space
Unit 6 provides data and controls the air output of blower fan 42.Temperature such as in ring main unit is too high, such as exceedes a reference value of setting
When, then need to carrying out air-supply cooling in ring main unit.The air-flow that wind-guiding air outlet 45 is sent into reaches bottom, through under separation net 8
Portion enters cable connection 3, swaps the air-flow that volume is inhaled and Hot wet air heating is incorporated into space in cable bin by the top of separation net 8.
Simultaneously as the natural phenomena that hot-air rises, temperature highest air is discharged from ring main unit top.The air output of blower fan 42 it is big
The numerical value of the small humiture depending on ring main unit, when blower fan 42 is opened, the air that can quickly introduce outside cabinet is dehumidified.
When blower fan 42 is closed, air is no longer introduced outside cabinet, in the ring main unit under the state simultaneously also carry out hot-air rise,
The cross-ventilation process that cold air declines, can now utilize the cooler air of ring main unit bottom, and utilize the sky in ring main unit
The air themperature imbalance of each position in outer cabinet is eliminated in the automatic disperse process of gas.In order to make full use of blower fan 42 to close
When outer cabinet in air adjust automatically characteristic, cycle startup can be arranged to the startup of blower fan 42, such as when the humidity that detect reaches
During to startup threshold values, blower fan 42 starts once per a period of time, starts setting time every time, the cycle that blower fan 42 is run can root
It is adjusted according to many factors such as the size of ring main unit, the model of blower fan 42, the numerical value that detects.
Humidity such as in ring main unit is too high, more than setting a reference value when, then need to being dehumidified in ring main unit.Open
The reason for dehumidification mode is needed by sensor detection to check high humidity, if the temperature in ring main unit is too low, causes phase
It is higher to humidity, during to being blown in ring main unit, outdoor hot-air can be utilized to properly increase the temperature in ring main unit, so as to
Reduce relative humidity；, also can be to being blown in ring main unit if moisture is overweight inside ring main unit, final moisture can be from top
Exhaust outlet 12 discharge.Humidity is too high to be also possible to because other reasonses cause, it is necessary to various startups in intelligent control unit 6
Condition is preset.
In order to balance the humiture in ring main unit, Temperature Humidity Sensor is included between outer cabinet 1, high-voltage board 2 in cabinet
Temperature Humidity Sensor 72 and the cable connection storehouse Temperature Humidity Sensor 73 positioned at cable connection storehouse 3 in cabinet.Humiture in cabinet is passed
Sensor 72, the humiture of cable connection storehouse Temperature Humidity Sensor 73 carry out contrasting the temperature that can be monitored in real time in cable connection storehouse 3
Whether humidity is controlled, is the severely afflicated area of condensation, it is thus possible to go out because cable connection storehouse 3 is easily influenceed by bottom moisture
The monitoring of Temperature Humidity Sensor 72 humiture is normal in existing cabinet, and the situation that cable connection storehouse 73 humidity of Temperature Humidity Sensor are too high,
Therefore the threshold values that the monitoring numerical value of cable connection storehouse Temperature Humidity Sensor 73 can be started as blower fan 42.It is meanwhile warm and humid in cabinet
The monitoring numerical value contrast of degree sensor 72, cable connection storehouse Temperature Humidity Sensor 73 can show the sky in the outer cabinet of ring main unit
Between and cable connection storehouse 3 in humiture it is whether unbalance, it is such as unbalance, be also avoided that temperature inside ring main unit to being blown in ring main unit
Psychrometric difference is away from excessive caused condensation.
Described sensor includes pneumatic sensor 74, and described pneumatic sensor 74 is located at outer cabinet bottom, positioned at blower fan
On 42 air supply direction；Described pneumatic sensor 74 perceives the air mass flow of the outer bottom of cabinet 1, is then used for controlling blower fan 42
Air-supply wind speed.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that it can still make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings be considered as it is illustrative and
It is nonrestrictive.
Claims (15)
1. a kind of ring main unit to study on microenvironment regulation in cabinet, ring main unit includes outer cabinet and high-voltage board, and high-voltage board is arranged on outer cabinet
Inside, there is cable connection storehouse in high-voltage board, it is characterised in that：
Outer cabinet top is provided with exhaust outlet；Micro environment control device is arranged on the side of outer cabinet, by being blown in the outside cabinet of blower fan；It is described
The air output of blower fan controlled by intelligent control unit, the control signal of intelligent control unit derives from sensor；
Cable connection is provided with circulation passage on storehouse, for the air circulation between cable connection storehouse and outer cabinet；
Described micro environment control device includes shell, blower fan；There is the air-vent for introducing air on described shell；Blower fan is pacified
It is cased, for the air that air-vent introduces to be sent into outer cabinet from fan outlet；Fan outlet is to control downwards
The wind-guiding air outlet of wire air-supply.
2. as claimed in claim 1 to the ring main unit of study on microenvironment regulation in cabinet, it is characterised in that：Described micro environment control device
Installed in the side surface upper part of outer cabinet.
3. as claimed in claim 1 to the ring main unit of study on microenvironment regulation in cabinet, it is characterised in that：Also include being used to be microenvironment
The low pressure sensing current-collecting device of controller power supply, the electric current that described low pressure sensing current-collecting device includes being connected with high-tension cable are mutual
Sensor and induction power supply module, current transformer are connected with induction power supply module, induction power supply module and micro environment control device phase
Even.
4. as claimed in claim 1 to the ring main unit of study on microenvironment regulation in cabinet, it is characterised in that：Described sensor includes using
In warm and humid outside Temperature Humidity Sensor in the cabinet for detecting the space between outer cabinet, high-voltage board and the cabinet for detecting the ring main unit external space
Spend sensor and couple the cable connection storehouse Temperature Humidity Sensor in storehouse for detection cable, temperature and humidity sensing in described cabinet
The outer Temperature Humidity Sensor of device, cabinet, cable connection storehouse Temperature Humidity Sensor are connected with intelligent control unit.
5. as claimed in claim 4 to the ring main unit of study on microenvironment regulation in cabinet, it is characterised in that：Humiture passes in described cabinet
Sensor is located at the top in ring main unit.
6. as claimed in claim 4 to the ring main unit of study on microenvironment regulation in cabinet, it is characterised in that：Humiture passes in described cabinet
The quantity of sensor is more than one, is distributed in the space between outer cabinet, high-voltage board.
7. as claimed in claim 1 to the ring main unit of study on microenvironment regulation in cabinet, it is characterised in that：Described sensor includes using
In the pneumatic sensor for the air mass flow for perceiving outer bottom of cabinet portion, described pneumatic sensor is located at outer cabinet bottom, positioned at blower fan
On air supply direction；Described pneumatic sensor is connected with intelligent control unit.
8. the ring main unit to study on microenvironment regulation in cabinet as any one of claim 1 to claim 7, its feature exist
In：Described micro environment control device also includes filter, and described filter is between air-vent and blower fan.
9. as claimed in claim 8 to the ring main unit of study on microenvironment regulation in cabinet, it is characterised in that：Described micro environment control device
Also include return air window, described return air window is located on the inside of outer cabinet between the inner chamber of micro environment control device, return air window
Unlatching, closing and unlatching it is size-controlled in intelligent control unit.
10. as claimed in claim 2 to the ring main unit of study on microenvironment regulation in cabinet, it is characterised in that：Described wind-guiding air outlet
Air supply direction be to be blown vertically downward along outer cabinet madial wall.
11. the ring main unit to study on microenvironment regulation in cabinet as any one of claim 1 to claim 7, its feature exist
In：Described blower fan is horizontal type blower fan.
12. the ring main unit to study on microenvironment regulation in cabinet as any one of claim 1 to claim 7, its feature exist
In：Described blower fan is frequency control, and the air flow rate of the blower fan is controlled by intelligent control unit.
13. the ring main unit to study on microenvironment regulation in cabinet as any one of claim 1 to claim 7, its feature exist
In：Described blower fan is constant speed, and the blower fan is opened or stops being controlled by intelligent control unit.
14. the ring main unit to study on microenvironment regulation in cabinet as any one of claim 1 to claim 7, its feature exist
In：Described circulation passage is the separation net positioned at cable connection storehouse lower sidewall.
15. as claimed in claim 10 to the ring main unit of study on microenvironment regulation in cabinet, it is characterised in that：Described wind-guiding air outlet
Horizontal wind deflector is also equipped with, horizontal wind deflector is controlled by intelligent control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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