CN108565730A - A kind of intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin - Google Patents
A kind of intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin Download PDFInfo
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- CN108565730A CN108565730A CN201810398333.2A CN201810398333A CN108565730A CN 108565730 A CN108565730 A CN 108565730A CN 201810398333 A CN201810398333 A CN 201810398333A CN 108565730 A CN108565730 A CN 108565730A
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- air
- cabin
- humidity sensor
- cable floor
- temperature humidity
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
Abstract
A kind of intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin, the substation secondary device prefabricated cabin lower part is equipped with the cable floor for being laid with cable, closing is carried out between cable floor and upper chamber by interlayer to be isolated, interlayer is equipped with the lower ventilation opening of connectivity device cabinet and cable floor；Further include the air outlet blown into cable floor, air outlet is tightly connected with air-supply arrangement, and exhaust outlet is arranged at prefabricated cabin top；The Intelligent ventilating temperature-lowering system includes intelligent control unit, the air inlet outside connecting cabin, there is air duct between air inlet and cable floor air outlet, wind turbine is housed, the air flow rate of wind turbine is controlled by intelligent control unit, and the control signal of intelligent control unit derives from Temperature Humidity Sensor in air duct；It is blown into cable floor using wind turbine, air-flow enters equipment cabinet from lower ventilation opening, is flowed out to cabin out of equipment cabinet.The present invention effect be：1, inside prefabricated cabin reliable air flow passage is provided for equipment cabinet；2, can achieve the purpose that effectively prevent dew condensation phenomenon by controlling air-flow；3, compared with prior art in largely use air-conditioning the case where, energy consumption is greatly reduced.
Description
Technical field
The present invention relates to the technical field of substation secondary device prefabricated cabin, relate in particular to a kind of easily controllable in it
The substation secondary device prefabricated cabin and its intelligent aeration dehumanization method of portion's humiture.
Background technology
With the fast development of domestic electrical industry, Guo Wang companies push forward intelligent substation modularization construction mode comprehensively.
Prefabricated secondary device cabin is come into being, which is an important component of assembled substation, and main member is adopted
With factory's preformed patterns, the integrated of below deck equipment, wiring and single devices debugging are completed in factory, can utmostly be realized
Large-scale production, integrated debugging in factory greatly reduce field connection and debugging work load, simplify repair and maintenance process, contract significantly
The short construction period improves construction efficiency.But since the secondary device in prefabricated cabin is mostly made of accurate electronic device, to fortune
The requirement of row environment is very high, and is limited by prefabricated cabin section structure and material, and external environment change is resisted in internal environment isolation
The ability of change is relatively weak.In order to meet equipment operation needs and reach expected design service life, how to be set for prefabricated cabin
Count, configure a kind of simple installation is flexible, O＆M is intelligently convenient, it is efficient section money environmental protection indoor environment control system be one there is an urgent need for
The problem of research.
Currently, to make to maintain constant temperature inside prefabricated cabin（25 DEG C or so）, usually configure technical grade integral type air conditioner into
Row internal environment Temperature and Humidity Control.It is required that air-conditioning has the functions such as remote control, incoming call self-starting, dehumidifying.In view of air-conditioning
Reliability is also difficult to meet the requirement that secondary device is run steadily in the long term, also needs to use redundancy backup, to ensure in nacelle always
An at least air-conditioning normal operation switches to another operation of air conditioner, is simultaneously emitted by time when an air-conditioning breaks down
Fault warning ensures the stabilization of indoor environment.Currently, carrying out the environment such as dehumidifying wet down using air conditioner in prefabricated cabin enclosure space
Main element control is all to use above method.But this mode has significant limitation, generates sometimes or even also and seriously asks
Topic.It is mainly manifested in the following aspects：
First, use air-conditioning progress dehumidification efficiency very low merely in the industrial occasions of prefabricated cabin one kind, energy consumption is high, air conditioner refrigerating
It then needs through energy conversion twice, synthesis dehumidification efficiency ＜ 30%, is to get half the result with twice the effort.Current national energy conservation and emission reduction is not met
Policy guidance.
Secondly as prefabricated cabin is equipped with a large amount of hermetic type equipment cabinets, equipment cabinet relies closely.Inside each cabinet between each chamber
Mutually isolated, without air convection channel, chamber air remains static, and static air is a kind of heat insulator,
It, which is acted on, will hinder heat conduction.Therefore, when some electric component calorific value is larger, it will cause hot-spot, and lack
The equipment that this main heat sink approach is conducted in weary convection current even if external air-conditioning is opened big again, and scratches every boots, and effect is limited.
Third, the use of air-conditioning, it is possible to cause local excessive drop temperature, generate excessively high temperature gradient.Make equipment
Between cabinet and equipment cabinet, temperature difference, boundary of this temperature difference in different temperatures region are formed in equipment cabinet between different chamber
Face（Such as casing, equipment cabinet outer wall）Hotter side form cold surface, become one of essential condition of condensation, therefore,
Air-conditioning is applied merely, not only cannot play good action to the heat dissipation of cabinet internal electronic equipment, can be in equipment cabinet body instead
Condensation process add fuel to the flames, promote the condensation process inside cabinet, so that humiture environment in cabinet is made the matter worse, serious conditions
Under, even it also occur that local seeping phenomenon in nacelle or equipment cabinet body.
From the above analysis, nacelle or the interior undesirable basic reason of heat dissipation of equipment cabinet body are a lack of convection current or convection current unevenness
Weighing apparatus, the basic reason of moisture condensation are that internal heterogeneity phantom is uneven, and temperature gradient is excessive, and cold and hot interface or cold surface are excessive.
Therefore, to meet requirement of the secondary device to thermal environment and electric circumstance inside nacelle or equipment cabinet body, realize good heat dissipation
With the generation for effectivelying prevent dew condensation phenomenon, key factor is that balanced Flow and heat flux is established in bin body, makes air-flow
All heat source bodies are balancedly flowed through, and finally carry heat and steam discharge nacelle, while nacelle or equipment cabinet body various places inside
Temperature gradient, eliminate cold surface, destroy condensation condition.But, equipment layout density high situation narrow in nacelle inner space
Under, to accomplish this point, be extremely difficult with existing conventional method.It must explore, seek a kind of new ventilation side
Formula and convection current form.
Invention content
The purpose of the present invention is to provide a kind of substation secondary device prefabricated cabin and its intelligent aeration dehumanization methods, to solve
Certainly in bin body the problem of condensation.
In order to achieve the object of the present invention, it is realized by using following technical scheme：
A kind of intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin, the substation secondary device prefabricated cabin
Lower part is equipped with the cable floor for being laid with cable, carries out closing by interlayer between cable floor and upper chamber and is isolated, interlayer is equipped with
The lower ventilation opening of connectivity device cabinet and cable floor；Further include the air outlet blown into cable floor, air outlet is close with air-supply arrangement
Envelope connection, exhaust outlet is arranged at prefabricated cabin top；The Intelligent ventilating temperature-lowering system include intelligent control unit, outside connecting cabin into
There is air duct in air port, wind turbine is housed in air duct, the air flow rate of wind turbine is controlled by intelligent control between air inlet and cable floor air outlet
The control signal of unit processed, intelligent control unit derives from Temperature Humidity Sensor；Blown into cable floor using wind turbine, air-flow from
Lower ventilation opening enters equipment cabinet, is flowed out to cabin out of equipment cabinet.
Particularly, there is the upper ventilation opening in connection cabin on the equipment cabinet.
Particularly, there is ventilation regulator on the lower ventilation opening.
Particularly, the Temperature Humidity Sensor includes mounted on the indoor cabin Temperature Humidity Sensor in cabin, is mounted on electricity
Cable floor Temperature Humidity Sensor in cable layer, the air inlet Temperature Humidity Sensor mounted on air inlet；Intelligent control unit according to
Cable floor is sent in the signal control of cabin Temperature Humidity Sensor, cable floor Temperature Humidity Sensor, air inlet Temperature Humidity Sensor
Air quantity.
Particularly, return air window, the return air window connect the wind between wind turbine, air inlet on the air duct
Road and cabin；Intelligent control unit is according to cabin Temperature Humidity Sensor, cable floor Temperature Humidity Sensor, air inlet temperature and humidity sensing
The size that the signal control return air window of device is opened, closes and opened.
Particularly, intelligent control unit is warm and humid according to cabin Temperature Humidity Sensor, cable floor Temperature Humidity Sensor, air inlet
Spend sensor signal control air inlet, cable floor air outlet, the unlatching of exhaust outlet, closing and unlatching size.
Particularly, further include temperature-adjusting device for wind turbine to be heated up or cooled down to the supplied gas stream of cable floor,
Intelligent control unit is according to cabin Temperature Humidity Sensor, the signal of cable floor Temperature Humidity Sensor, air inlet Temperature Humidity Sensor
Control temperature-adjusting device.
The present invention effect be：1, inside prefabricated cabin reliable air flow passage is provided for equipment cabinet；2, can
Achieve the purpose that effectively prevent dew condensation phenomenon by controlling air-flow；3, compared with prior art in largely use air-conditioning the case where, greatly
Width reduces energy consumption.
Description of the drawings
Fig. 1 is the substation secondary device prefabricated cabin of the present invention and its structure with intelligent aeration cooling and dehumidifying system
Figure；
Fig. 2 is the structure chart of the substation secondary device prefabricated cabin of the present invention；
Fig. 3 is the plan view of the substation secondary device prefabricated cabin of the present invention；
Fig. 4 is air flow condition figure of the present invention under outer circulation；
Fig. 5 is the air flow condition figure under the present invention recycles inside；
Fig. 6 is the control terminal connection figure of the present invention.
It is as follows to the symbol description of Fig. 1 to Fig. 6：
11, cable floor；12, cabin；13, exhaust outlet；14, air outlet；15, equipment cabinet；151, upper ventilation opening；152, lower ventilation
Mouthful；2, intelligent control unit；3, air inlet；4, return air window；5, wind turbine；61, air inlet Temperature Humidity Sensor；62, cabin temperature
Humidity sensor；63, cable floor Temperature Humidity Sensor；7, temperature-adjusting device；71, evaporator；72, outdoor machine of air-conditioner；8, intelligence
Aeration-cooling dehumidification system.
Specific implementation mode
With reference to Fig. 1 to Fig. 6, embodiments of the present invention will be described.
As shown in Fig. 2, being aerated dehumidifying to substation secondary device prefabricated cabin to realize, it is necessary first to its inside
Structure be transformed.
The usual structure of substation secondary device prefabricated cabin is the cabin for including four walls, cabin top, bilge composition, is filled in cabin
There is equipment cabinet 15.Lower part is equipped with the cable floor for being laid with cable, carries out closing by interlayer between cable floor and upper chamber and is isolated.
In the prior art, many gaps can be left between cable floor and cabin for divulging information.In the present invention, prefabricated in order to make
It divulges information in cabin smooth, needs mutually to close by interlayer between cable floor and cabin and be isolated, connectivity device is equipped on interlayer
The lower ventilation opening 152 of cabinet 15 and cable floor, and the air outlet 14 blown into cable floor, air outlet 14 connect with air-supply arrangement sealing
It connects.
Under such configuration, stable gas channel can be formed in prefabricated cabin：Air-supply arrangement by air-flow from air outlet 14 into
Enter, by cable floor, enters equipment cabinet 15 from lower ventilation opening 152, then enter cabin out of equipment cabinet 15, then flow out from exhaust outlet
Substation secondary device prefabricated cabin.
However, and not all equipment cabinet 15 be all that by what air-flow was travelled through out of equipment cabinet 15, therefore
Some need to be aerated need to open up in the equipment cabinet 15 of cooling ventilation opening 151 come connectivity device cabinet 15 inner space and
Cabin.
There are many different equipment cabinets 15 in substation, requirement of the different equipment cabinets 15 to ventilation and heat is all not phase
With, after being equipped with ventilation regulator on lower ventilation opening 152, the specific equipment installed in equipment cabinet 15 can be directed to and made
Its ventilation state is adjusted with state, lower ventilation opening 152 can be closed without ventilation drying, easy to produce setting for high temperature
Standby cabinet 15 then increases lower ventilation opening 152.
It is used for being aerated dehumidifying in substation secondary device prefabricated cabin setting intelligent aeration cooling and dehumidifying system 8；It is described
Intelligent aeration cooling and dehumidifying system 8 include intelligent control unit 2, the air inlet 3 outside connecting cabin, air inlet 3 and cable floor are sent
There is air duct between air port 14, wind turbine 5 is housed in air duct, the air flow rate of wind turbine 5 is controlled by intelligent control unit 2, intelligent control
The control signal of unit 2 derives from Temperature Humidity Sensor.
The Temperature Humidity Sensor includes mounted on the indoor cabin Temperature Humidity Sensor 62 in cabin, is mounted in cable floor
Cable floor Temperature Humidity Sensor 63, the air inlet Temperature Humidity Sensor 61 mounted on air inlet 3；Cabin Temperature Humidity Sensor
62, cable floor Temperature Humidity Sensor 63, air inlet Temperature Humidity Sensor 61 are connected with intelligent control unit 2.
One embodiment of the present invention can be realized in the case of meeting above structure.Since many electrical equipments all can
Fever, therefore most common situation is exactly that temperature out of my cabin is applicable in this pattern when being less than less than prefabricated cabin temperature.Air inlet 3 at this time
It is opened with exhaust outlet；It then needs to close if any return air window 4；As in the range of setting, temperature is adjusted temperature in prefabricated cabin
Device 7 does not also start.Under this state, external cooler air is sent by air inlet 3, after purified filtering and the driving of wind turbine 5 under
Portion exports, and is pressed into cable floor, and micro-positive pressure is formed in cable floor, then the lower ventilation opening 152 through 15 lower part of secondary device cabinet enters
Inside equipment cabinet 15, with inside equipment cabinet 15 heat source body interaction after formed cladding heat source body and under hot differential pressure action on
The Thermal plume risen, last hot-air are overflowed from 151 hole of upper ventilation opening on 15 top of equipment cabinet and are discharged from exhaust outlet.
There are return air window 4, the return air window 4 to connect the air duct between wind turbine 5, air inlet 3 on the air duct
The cabin and；Return air window 4 is opened, closes and is opened size-controlled in intelligent control unit 2.
There are return air window 4, the return air window 4 to connect the air duct between wind turbine 5, air inlet 3 on the air duct
With air draft cabin；Return air window 4 is opened, closes and is opened size-controlled in intelligent control unit 2.
Unlatching, closing and the unlatching of the air inlet 3 it is size-controlled in intelligent control unit 2；The cable
Layer air outlet 14 unlatching, closing and unlatching it is size-controlled in intelligent control unit 2；The unlatching of the exhaust outlet is closed
That closes and open is size-controlled in intelligent control unit 2.
Further include the temperature-adjusting device 7 for wind turbine 5 to be heated up or cooled down to the supplied gas stream of cable floor, it is described
Temperature-adjusting device 7 is controlled by intelligent control unit 2.Multiple technologies means reached purpose can be used in temperature-adjusting device 7, below
It is illustrated in a manner of using the combination of evaporator 71 and outdoor machine of air-conditioner 72.Evaporator 71 be placed on wind turbine 5 and cable floor into
Between air port 3, when temperature-adjusting device 7 starts, i.e., evaporator 71 generates heat or turns cold in itself, flows through the air-flow meeting of evaporator 71
Heating or cooling achieve the purpose that temperature of the control to the supplied gas stream of cable floor.
Second and the third embodiment of the present invention can be realized in the case of meeting above structure.
Second embodiment is the completely interior state recycled in cabin.When out of my cabin, epidemic disaster is higher than in cabin, or temperature mistake out of my cabin
It is applicable in this pattern when temperature is less than setting range in low, cabin.Air inlet 3 and exhaust outlet are turned off at this time, and return air window 4 is opened,
In the range of temperature can maintain setting in prefabricated cabin, temperature-adjusting device 7 does not start.At this time under the action of wind turbine 5, gas
It streams and enters equipment cabinet 15 from lower ventilation opening 152 after cable floor, flowed out from upper ventilation opening 151, it is rear again under the action of wind turbine 5
It is sent into cable floor by return air window 4, forms the interior cycle of prefabricated cabin inner space.If temperature raising reaches setting value in cabin,
Temperature-adjusting device 7 starts, for being suitably sent into the lower air-flow of temperature to cool down.
Third embodiment is the completely interior state recycled in cabin.It is applicable in when cabin internal and external temperature is relatively low and humidity is higher
This pattern.Air inlet 3 and exhaust outlet partially open at this time, and return air window 4 is opened, as temperature can maintain setting in prefabricated cabin
In the range of, temperature-adjusting device 7 does not start.At this point, humidity is higher in cabin, if dropped by starting the dehumidification function of air-conditioning
For the water capacity of low latitude gas to reduce relative humidity, this mode efficiency is very low, not only to consume the energy, there is also the same of dehumidifying
When can reduce air themperature, reduce relative humidity efficiency on lead to the problem of part negative function.Therefore, the present invention will adopt
Change the method for relative humidity with by adjusting air themperature.At this point, air-flow exchange is less inside and outside cabin, pass through the part in cabin
Interior cycle, due to the heating effect of all kinds of electrical equipments in equipment cabinet 15, temperature will increase in cabin, while relative humidity can drop
Low, the wet volume capacity of air can improve in cabin.Meanwhile air inlet 3 and exhaust outlet do not completely close, in cabin, the exhaust outlet of internal upper part will
Discharge is adsorbed with the relatively warm air of a large amount of steam, to achieve the purpose that dehumidifying.
The present invention makes the transformation of prefabricated cabin to be that equipment cabinet 15 provides reliable air flow passage inside prefabricated cabin.It is main
The mesh for effectivelying prevent dew condensation phenomenon can be reached by control air-flow by the pattern of three kinds of ventilation drying of above example
's；Due to being aerated in the region only to needing ventilation drying, and wind turbine 5 only needs the wind speed of very little that can achieve the goal,
And temperature-adjusting device 7 is intended only as the cooperation under extreme situation, therefore compared with prior art in the case where largely using air-conditioning,
Energy consumption is greatly reduced.
Claims (7)
1. a kind of intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin, it is characterised in that：The substation
Secondary device prefabricated cabin lower part be equipped be laid with cable cable floor, between cable floor and upper chamber by interlayer closed every
From interlayer is equipped with the lower ventilation opening of connectivity device cabinet and cable floor；Further include the air outlet blown into cable floor, air outlet
It is tightly connected with air-supply arrangement, exhaust outlet is arranged at prefabricated cabin top；
The Intelligent ventilating temperature-lowering system includes intelligent control unit, the air inlet outside connecting cabin, and air inlet and cable floor are sent
There is air duct between air port, wind turbine is housed in air duct, the air flow rate of wind turbine is controlled by intelligent control unit, intelligent control unit
It controls signal and derives from Temperature Humidity Sensor；
It is blown into cable floor using wind turbine, air-flow enters equipment cabinet from lower ventilation opening, is flowed out to cabin out of equipment cabinet.
2. the intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin as described in claim 1, it is characterised in that：
There is the upper ventilation opening in connection cabin on the equipment cabinet.
3. the intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin as described in claim 1, it is characterised in that：
There is ventilation regulator on the lower ventilation opening.
4. the intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin as described in claim 1, it is characterised in that：
The Temperature Humidity Sensor includes mounted on the indoor cabin Temperature Humidity Sensor in cabin, the cable floor temperature in cable floor
Humidity sensor, the air inlet Temperature Humidity Sensor mounted on air inlet；Intelligent control unit is according to cabin temperature and humidity sensing
The signal control of device, cable floor Temperature Humidity Sensor, air inlet Temperature Humidity Sensor is to the air output of cable floor.
5. the intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin as claimed in claim 4, it is characterised in that：
There are return air window, the return air window to connect the air duct and cabin between wind turbine, air inlet on the air duct；Intelligence control
Unit processed controls back according to the signal of cabin Temperature Humidity Sensor, cable floor Temperature Humidity Sensor, air inlet Temperature Humidity Sensor
The size that air regulator mouth is opened, closes and opened.
6. the intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin as claimed in claim 5, it is characterised in that：
Intelligent control unit is according to cabin Temperature Humidity Sensor, the signal of cable floor Temperature Humidity Sensor, air inlet Temperature Humidity Sensor
Control air inlet, cable floor air outlet, the unlatching of exhaust outlet, closing and unlatching size.
7. the intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin as claimed in claim 6, it is characterised in that：
Further include the temperature-adjusting device for wind turbine to be heated up or cooled down to the supplied gas stream of cable floor, intelligent control unit according to
The signal control temperature-adjusting device of cabin Temperature Humidity Sensor, cable floor Temperature Humidity Sensor, air inlet Temperature Humidity Sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810398333.2A CN108565730A (en) | 2018-04-28 | 2018-04-28 | A kind of intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810398333.2A CN108565730A (en) | 2018-04-28 | 2018-04-28 | A kind of intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108565730A true CN108565730A (en) | 2018-09-21 |
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ID=63537483
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810398333.2A Pending CN108565730A (en) | 2018-04-28 | 2018-04-28 | A kind of intelligent aeration cool-down dehumidification method of substation secondary device prefabricated cabin |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412025A (en) * | 2018-11-19 | 2019-03-01 | 中国人民解放军32181部队 | A kind of energy storage cabin structure |
| CN113301771A (en) * | 2021-04-07 | 2021-08-24 | 华为技术有限公司 | Multi-temperature control cabinet and scheduling method thereof |
| CN113708705A (en) * | 2021-08-17 | 2021-11-26 | 乐山一拉得电网自动化有限公司 | Prefabricated cabin type intelligent high-power variable frequency drilling machine electric control system |
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| CN201222838Y (en) * | 2008-07-09 | 2009-04-15 | 常州钟恒新材料有限公司 | Apparatus for cooling and air-feeding regulator cubicle |
| CN202282561U (en) * | 2011-08-11 | 2012-06-20 | 浙江安可电气科技有限公司 | Ventilation heat radiation system of semi-buried type box-type transformer station switch cabinet chamber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109412025A (en) * | 2018-11-19 | 2019-03-01 | 中国人民解放军32181部队 | A kind of energy storage cabin structure |
| CN109412025B (en) * | 2018-11-19 | 2024-03-26 | 中国人民解放军32181部队 | Energy storage cabin structure |
| CN113301771A (en) * | 2021-04-07 | 2021-08-24 | 华为技术有限公司 | Multi-temperature control cabinet and scheduling method thereof |
| CN113301771B (en) * | 2021-04-07 | 2024-04-09 | 华为数字能源技术有限公司 | Multi-temperature control cabinet and scheduling method thereof |
| CN113708705A (en) * | 2021-08-17 | 2021-11-26 | 乐山一拉得电网自动化有限公司 | Prefabricated cabin type intelligent high-power variable frequency drilling machine electric control system |
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