CN204885937U - Condensation of looped netowrk cabinet removes damp device - Google Patents
Condensation of looped netowrk cabinet removes damp device Download PDFInfo
- Publication number
- CN204885937U CN204885937U CN201520616554.4U CN201520616554U CN204885937U CN 204885937 U CN204885937 U CN 204885937U CN 201520616554 U CN201520616554 U CN 201520616554U CN 204885937 U CN204885937 U CN 204885937U
- Authority
- CN
- China
- Prior art keywords
- condensation
- controller
- damp
- moisture trap
- control module
- 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.)
- Active
Links
- 230000005494 condensation Effects 0.000 title claims abstract description 67
- 238000009833 condensation Methods 0.000 title claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims description 22
- 238000007791 dehumidification Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Drying Of Gases (AREA)
Abstract
The utility model discloses a condensation of looped netowrk cabinet removes damp device, include and remove damp controller, remove damp controller and connect a plurality of moisture traps, it is connected with electrical source controller to remove damp controller, electrical source controller passes through power adapter and connects voltage transformer, electrical source controller still is connected with solar cell panel, battery. Adopt damp and hot air to meet cold principle that can the condensation, make damp and hot air through the condensation end through the fan, make moisture condensation and form and congeal water on the condensation end, collect and congeal outside the log raft goes out electric cabinet, reduce humidity in the looped netowrk cabinet, really keep the looped netowrk cabinet inside dry, adopt solar energy and PT hybrid power supply mode, separated the tradition of determining and removed the not enough of damp device power supply mode, green simultaneously, remove damp device shell and can not generate heat, can not exert an influence to cable on every side, humidity reaches the threshold values automatic start in the looped netowrk cabinet, automatic shutdown work after the dehumidification, and the dehumidification can be accomplished to the short period, and power consumption is low.
Description
Technical field
The utility model relates to a kind of ring main unit condensation damp-eliminating apparatus.
Background technology
Under ring main unit is generally arranged on outdoor roadside, tree shade or in greenbelt, and be subject to the impact of cable shaft moisture, internal corrosion is serious; Larger humidity reduces air insulation distance, causes serious potential safety hazard to the normal operation of equipment.
General ring main unit is unkitted moisture trap or installs traditional heating type moisture trap.The dehumidifying of traditional heating type moisture trap mainly improves the temperature in ring main unit by heating, impels condensation to flash to moisture, prevents condensation from producing harm to equipment.But because moisture is also retained in cabinet, when external environment condition is significantly lowered the temperature, after offsetting heater heat effect, moisture still will be converted into condensation, condense in electric equipment surface, not reach object and the effect of dehumidifying, thus harm equipment safety operation.
More moisture can be held in the air that traditional heating type moisture trap utilizes temperature higher, adding hot-air just can make condensation be evaporated in air, equipment surface is condensed in moisture mode, its shortcoming is, moisture is also inner at ring main unit, if external environment condition is lowered the temperature, moisture still can form condensation, harm equipment safety operation; And traditional heating type moisture trap generally adopts the mode of PT power taking, there is Power Limitation and safety problem; During the work of traditional heating type moisture trap, itself is awfully hot, can accelerate around that cable is aging, if directly contacted with around cable, even can destroy cable insulating, affect safety; Need higher-wattage to keep in-cabinet temperature simultaneously, and need to keep for a long time, power consumption is high.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, a kind of ring main unit condensation damp-eliminating apparatus is provided, this device adopts damp-heat air to meet the operation principle of cold meeting condensation, at the multiple cold junction lower than ambient temperature of ring main unit internal invention, to force in cabinet relative damp-heat air through cold junction by fan, constantly produce condensation at cold junction and form solidifying water, collecting solidifying water and discharge outside ring main unit, the real ring main unit that keeps is inner dry.
For achieving the above object, the utility model adopts following technical proposals:
Ring main unit condensation damp-eliminating apparatus, comprises dehumidifying controller, and described dehumidifying controller connects multiple moisture trap, and described dehumidifying controller is connected with power-supply controller of electric, and described power-supply controller of electric connects voltage transformer by power supply adaptor; Described power-supply controller of electric is also connected with solar panel, storage battery.
Described moisture trap comprises radiating end and condensation end, and the side of described radiating end connects cooling piece, and described cooling piece is between radiating end and condensation end, and described radiating end, condensation end and cooling piece are fixed together; The opposite side of described radiating end is fixed with fan, and fan bottom is provided with moisture trap control module; Described moisture trap control module is connected with fan, cooling piece.Ring main unit inner moisture directly can be condensed into water and discharge by moisture trap, and because moisture in cabinet reduces, timely external environment condition cooling, does not have enough moistures to form condensation yet, and the real ring main unit that keeps is inner dry.
Described condensation end bottom is provided with water storage tank, is collected the moisture content of condensation end condensation by water storage tank, is discharged outside cabinet by the moisture content in cabinet.
Described moisture trap control module place is provided with humidity collector, can Real-time Collection humidity data; Described humidity collector is all connected with dehumidifying controller with moisture trap control module, and dehumidifying controller receives the humidity data that humidity collector collects, and is controlled the start and stop of moisture trap by moisture trap control module according to humidity data.
Described power-supply controller of electric comprises switch module, and described switch module one end connects power supply adaptor, and the other end connects dehumidifying controller.Switch module is Non-follow control, and manually control switch module is cut-off, and ensures the switching at illumination weather and rainy weather powering mode.
Described power-supply controller of electric comprises energy supply control module, and described energy supply control module is connected with solar panel, storage battery and dehumidifying controller respectively.It is that storage battery power supply or storage battery discharge that energy supply control module controls solar panel.
Described condensation end place is also provided with long-pending white detecting sensor, described long-pending white detecting sensor is connected with dehumidifying controller, when long-pending white detecting sensor detects that condensation end exists long-pending frost, dehumidifying controller controls cooling piece by moisture trap control module and quits work, make its defrost of rising again, block air channel to avoid frosting.
The beneficial effects of the utility model are:
The utility model adopts the principle of damp-heat air chance cold meeting condensation, makes damp-heat air through condensation end by fan, and make moisture condensation on condensation end also form solidifying water, collection is coagulated water and discharged outside electric cabinet, reduction ring main unit humidity; Directly ring main unit inner moisture can be condensed into water to discharge, because moisture in cabinet reduces, timely external environment condition cooling, does not have enough moistures to form condensation yet, and the real ring main unit that keeps is inner dry; Adopt solar energy and PT combined power supply way, separate the certainly deficiency of traditional damp-eliminating apparatus supply power mode, environmental protection simultaneously; Damp-eliminating apparatus shell can not generate heat, and can not have an impact to around cable; Ring main unit humidity reaches threshold values and automatically starts, and dehumidifying terminates automatically to quit work afterwards, and the short period can complete dehumidifying, and power consumption is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model ring main unit condensation damp-eliminating apparatus;
Fig. 2 is the structural representation of the utility model moisture trap;
In figure, 1 is condensation end, and 2 is cooling piece, and 3 is radiating end, and 4 is fan, and 5 is air channel, and 6 is moisture trap control module, and 7 is shell.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, ring main unit condensation damp-eliminating apparatus, comprise dehumidifying controller, dehumidifying controller connects multiple moisture trap, and dehumidifying controller is connected with power-supply controller of electric, and power-supply controller of electric comprises energy supply control module, energy supply control module is connected with solar panel, storage battery and dehumidifying controller respectively, power-supply controller of electric comprises switch module, and switch module one end connects power supply adaptor, and the other end connects dehumidifying controller.Power-supply controller of electric connects voltage transformer by power supply adaptor.Power-supply controller of electric is also provided with reserved wind energy interface.Moisture trap is arranged on each interval of ring main unit, removing moisture and condensation.
Ring main unit condensation damp-eliminating apparatus adopts solar energy and PT combined power supply way, and under normal operating conditions, solar panel accumulators is powered, charged; At rainy weather or night, when solar panel output current is 0, continue power supply by storage battery, when storage battery because long-time electric discharge causes under-voltage, power-supply controller of electric realizes cutting off solar panel current supply circuit by energy supply control module, enables PT power supply output module loop and powers; When solar panel output current recovers, systematic evaluation returns solar powered pattern.Wherein, if PT can provide DC24V ~ DC65V power supply, then can directly access controller AC-L1/AC-N1 end; If PT provides AC or DC110V/220V power supply, then need arrangement guide rail formula switch power module, after being converted into DC24V voltage, the AC-L1/AC-N1 end of access controller; Power supply (12V) and the communication (RS485) of ring main unit moisture trap all have controller to control, and the mode of connection as shown in Figure 1.
On mounting means, the multiple mounting modes such as dehumidifying controller support plate-hanging type, magnet attracted type, guide rail are fixed, can adapt to the installation requirements of Different field condition.
Power supply flow process:
If there is normal illumination, lasting generating charges a battery by solar panels, can be in floating charge state after storage battery is full of;
Evening or overcast and rainy under, solar energy no longer generates electricity, system by storage battery proceed power supply;
Under overcast and rainy for a long time, storage battery is because long-time electric discharge causes under-voltage, and system will cut off storage battery power supply, change and be powered to moisture trap by PT, but can not charge a battery;
After fine day, solar energy will charge a battery, and returns to after supply power voltage until storage battery, will cut off PT for electric current supply circuit, return to solar powered pattern.
Parameter index:
Battery capacity: 65AH colloid battery;
Full piezoelectric voltage: the 12.2V of storage battery;
Storage battery under-voltage voltage: 11.3V;
Moisture trap operating power consumption: 20W;
Endurance of storage battery: 24 hours;
Under normal condition by under-voltage to be full of electricity the time: 3 hours;
PT consumption: if there is not the successive cloudy days gas of continuous two days, consumption is 0.
The utility model ring main unit condensation damp-eliminating apparatus dehumidifying operation principle:
Control the principle of the controller that modules " takes turns to operate ":
1) dehumidifying controller is connected with adopting RS485 bus between moisture trap, maximum Supporting connectivity 8 ring main unit moisture traps, but consider ring main unit power taking power limited factor, 1 ring main unit moisture trap is wherein only had to be engraved in work one time, for 1 ring main unit controller band, 8 ring main unit moisture traps, overall power is within 20W.
2) the maximum dehumidifying 2h of separate unit moisture trap, and then next moisture trap dehumidifying, successively toward pusher.
3) when wherein certain moisture trap does not meet dehumidifying condition, not dehumidifying; If the moisture trap of numbering meets dehumidifying condition, then directly go to its dehumidifying below.
4) if wherein certain moisture trap operation irregularity (as: go offline, communication is not gone up, cooling assembly fault etc.), then show state " fault ", does not participate in dehumidifying circulation, skips.
5) controller carries under-voltage protection function, once voltage is lower or input power less than 20W, display " under-voltage " report to the police, all not dehumidifyings of all moisture traps.
As shown in Figure 2, moisture trap comprises shell 7, and arrange radiating end 3 and condensation end 1 in shell 7, condensation end bottom is provided with water storage tank.The side of radiating end 3 connects cooling piece 2, and cooling piece 2 is between radiating end 3 and condensation end 1, and radiating end 3, condensation end 1 and cooling piece 2 are fixed together; The opposite side of radiating end 3 is fixed with fan 4, and fan 4 bottom is provided with moisture trap control module 6; Cooling piece place arranges air channel 5, and moisture trap control module 6 is connected with fan 5, cooling piece 2.The radiating end of forced ventilation circulation, with small-sized fans, makes condensation originally be dealt in air in the aqueous dispersion of equipment surface and goes.Condensation end adopts the formation of electronic cooling technology lower than the solidifying water surface of ambient temperature, and the larger temperature difference makes the moisture content in damp-heat air be condensate on the solidifying water surface, and condensed water relies on gravity to drop in water storage tank, discharges outside cabinet eventually through drainage pipe.
Moisture trap control module 6 place is provided with humidity collector, can Real-time Collection humidity data; Humidity collector and control module are all connected with dehumidifying controller, and dehumidifying controller receives the humidity data that humidity collector collects, and are controlled the start and stop of moisture trap by control module according to humidity data.Consider ring main unit power taking power limited factor, dehumidifying controller controls each moisture trap and " takes turns to operate ", overall power is controlled within 20W.
Condensation end place is also provided with long-pending white detecting sensor.Damp-eliminating apparatus supports automatic defrosting system, prevents the frosting of damp-eliminating apparatus cold junction from blocking air channel and affecting dehumidifying effect.
The utility model ring main unit condensation damp-eliminating apparatus prevents the operation principle of frost:
For preventing under low temperature and high relative humidity condition because condensation end frosting is obstructed to causing air channel, and then cause irreversible damage to moisture trap internal refrigeration storage assembly, therefore long-pending white detecting sensor is designed with at condensation end place, once find that there is long-pending frost, cooling piece work will be stopped, make its defrost of rising again, block air channel to avoid frosting.There is the transducer that frost is amassed in more detection at present, in the application, long-pending white detecting sensor adopts number of patent application to be the transducer of 201320203704X.
The utility model ring main unit condensation damp-eliminating apparatus condensation principle and the solidifying water treatment of collection:
For the shortcoming of common condensation-preventing device dehumidifying weak effect, take full advantage of the feature of " when the temperature difference is large easy condensation ", electronic cooling technology is adopted to form the solidifying water surface that can reach at most subzero 30 degree, coagulate the temperature difference in the water surface and cabinet larger, and the larger temperature difference very easily makes the moisture content in air be condensate on the solidifying water surface, condensed water relies on gravity to drop in water leg, discharges outside cabinet eventually through drainage pipe.Discharge outside cabinet because the moisture content in cabinet constantly reduces, in air, humidity significantly declines.And air drier time, impel again condensation at the water of equipment surface constantly to air evaporation, then discharged by solidifying water again.So usually work after half an hour, even if ambient temperature changes, because in cabinet, moisture in air is considerably less, also can not produce condensation again, thus fundamentally solve humidity puzzlement common in electric equipment cabinet.
Condensation-preventing device inside also has the radiating end of band forced ventilation circulation.Although radiator power is less, due to small-sized fans, heat can be made to be dispersed into rapidly in air, ultrahigh in efficiency, thus equipment cabinet internal temperature is raised, promote the appearance outlet capacity of air, condensation is originally dealt in air in the aqueous dispersion of equipment surface and goes.
Experimental data shows, ring main unit condensation damp-eliminating apparatus of the present utility model makes ring main unit humidity reduce 1/3.Heat up obviously during the work of traditional heating type moisture trap, can accelerate around that cable is aging.And after condensation damp-eliminating apparatus of the present utility model dehumidifying, make the traditional damp-eliminating apparatus of the humidity ratio in ring main unit humidity low about 20 degree.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection range; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection range of the present utility model.
Claims (6)
1. ring main unit condensation damp-eliminating apparatus, is characterized in that, comprises dehumidifying controller, and described dehumidifying controller connects multiple moisture trap, and described dehumidifying controller is connected with power-supply controller of electric, and described power-supply controller of electric connects voltage transformer by power supply adaptor; Described power-supply controller of electric is also connected with solar panel, storage battery; Described power-supply controller of electric comprises switch module, and described switch module one end connects power supply adaptor, and the other end connects dehumidifying controller.
2. ring main unit condensation damp-eliminating apparatus as claimed in claim 1, it is characterized in that, described moisture trap comprises radiating end and condensation end, and the side of described radiating end connects cooling piece, described cooling piece is between radiating end and condensation end, and described radiating end, condensation end and cooling piece are fixed together; The opposite side of described radiating end is fixed with fan, and fan bottom is provided with moisture trap control module; Described moisture trap control module is connected with fan, cooling piece.
3. ring main unit condensation damp-eliminating apparatus as claimed in claim 2, it is characterized in that, described condensation end bottom is provided with water storage tank.
4. ring main unit condensation damp-eliminating apparatus as claimed in claim 2, it is characterized in that, described moisture trap control module place is provided with humidity collector; Described humidity collector is all connected with dehumidifying controller with moisture trap control module, and dehumidifying controller receives the humidity data that humidity collector collects, and is controlled the start and stop of moisture trap by moisture trap control module according to humidity data.
5. ring main unit condensation damp-eliminating apparatus as claimed in claim 1, it is characterized in that, described power-supply controller of electric comprises energy supply control module, and described energy supply control module is connected with solar panel, storage battery and dehumidifying controller respectively.
6. ring main unit condensation damp-eliminating apparatus as claimed in claim 2, it is characterized in that, described condensation end place is also provided with long-pending white detecting sensor, described long-pending white detecting sensor is connected with dehumidifying controller, when long-pending white detecting sensor detects that condensation end exists long-pending frost, dehumidifying controller controls cooling piece by moisture trap control module and quits work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520616554.4U CN204885937U (en) | 2015-08-14 | 2015-08-14 | Condensation of looped netowrk cabinet removes damp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520616554.4U CN204885937U (en) | 2015-08-14 | 2015-08-14 | Condensation of looped netowrk cabinet removes damp device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204885937U true CN204885937U (en) | 2015-12-16 |
Family
ID=54830269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520616554.4U Active CN204885937U (en) | 2015-08-14 | 2015-08-14 | Condensation of looped netowrk cabinet removes damp device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204885937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300090A (en) * | 2016-10-31 | 2017-01-04 | 张家港沙工科技服务有限公司 | A kind of energy saving and environment friendly power distribution cabinet |
-
2015
- 2015-08-14 CN CN201520616554.4U patent/CN204885937U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300090A (en) * | 2016-10-31 | 2017-01-04 | 张家港沙工科技服务有限公司 | A kind of energy saving and environment friendly power distribution cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203240661U (en) | Intelligent integrated equipment for controlling indoor environment of transformer station | |
| CN204494291U (en) | A kind of energy-conserving road lamp of automatic control | |
| CN203983792U (en) | A kind of novel quick heat radiating low-voltage comprehensive distribution box | |
| CN204668776U (en) | A kind of outdoor solar energy power accumulating heat-dissipation switch cabinet | |
| CN205212285U (en) | Energy -concerving and environment -protective type block terminal | |
| CN104009400B (en) | The multi-functional shutter device of the outdoor intelligent cabinet of intelligent substation | |
| CN205944847U (en) | Protection device of prepackage type transformer substation | |
| CN207819190U (en) | A kind of wind light mutual complementing power supply looped network cabinet dehumidification device | |
| CN204885937U (en) | Condensation of looped netowrk cabinet removes damp device | |
| CN102878649A (en) | Intelligent ventilated energy-saving system for base station | |
| KR101266271B1 (en) | Building auto control device using the new recy cle energy as power on peck time | |
| CN204886386U (en) | A power supply system for field equipment | |
| CN110098566B (en) | Automatic dehumidification system and dehumidification optimization method for ring main unit | |
| CN204992345U (en) | Box type transformer station | |
| CN207339020U (en) | Terminal box of transformer substation drives damp heat sink | |
| CN203490555U (en) | Automatic dehumidification system | |
| CN203501317U (en) | Intelligent base station integral air-conditioning energy-saving device | |
| CN105320170A (en) | Transformer station humidity automatic control device | |
| CN203080976U (en) | Multifunctional solar sentry box | |
| CN204929006U (en) | High heat -sinking capability's infrared camera machine | |
| CN205724431U (en) | A kind of city distribution screen cabinet condensation-preventing device | |
| CN209844234U (en) | Automatic dehumidification system of looped netowrk cabinet | |
| CN204315955U (en) | A kind of anti-condensation oil pumper frequency-conversion control cabinet | |
| CN210399731U (en) | Frostless air source heat pump hybrid heating drying room | |
| CN203190532U (en) | Air conditioner outdoor unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |