CN110212415A - A kind of condensation-proof electric system and method - Google Patents
A kind of condensation-proof electric system and method Download PDFInfo
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- CN110212415A CN110212415A CN201910367332.6A CN201910367332A CN110212415A CN 110212415 A CN110212415 A CN 110212415A CN 201910367332 A CN201910367332 A CN 201910367332A CN 110212415 A CN110212415 A CN 110212415A
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- electric appliance
- appliance cabinet
- drying device
- humidity
- temperature
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000001035 drying Methods 0.000 claims abstract description 69
- 230000001012 protector Effects 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000004044 response Effects 0.000 claims description 6
- 230000026041 response to humidity Effects 0.000 claims description 3
- 230000006903 response to temperature Effects 0.000 claims description 3
- 230000005494 condensation Effects 0.000 abstract description 7
- 238000009833 condensation Methods 0.000 abstract description 7
- 230000002265 prevention Effects 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 230000005611 electricity Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 206010037660 Pyrexia Diseases 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention relates to technical field of electric appliances, especially a kind of condensation-proof electric system and method.Wherein condensation-proof electric system, comprising: Electric Appliance Cabinet;And drying device, it is set to except the Electric Appliance Cabinet, is configured to air feed inside the Electric Appliance Cabinet.Condensation prevention system and method for the invention has both cost and energy demand advantages, without any chemical drier, it is only necessary to few manual maintenance, and also energy consumption is extremely low.
Description
Technical field
The present invention relates to technical field of electric appliances, especially a kind of condensation-proof electric system and method.
Background technique
In the workshops such as large-scale factory, power plant, chemical plant, many electric appliances are arranged in the form of Electric Appliance Cabinet.Large-scale work
There are many electric appliances in factory's Electric Appliance Cabinet, since southern area has a humid climate, electric elements are exposed in humid air for a long time, are easy
Cause the electric appliance in Electric Appliance Cabinet to cause the problems such as short circuit, open circuit, electric appliance damage, subsequent factory work is caused very big
It is dangerous;Moreover, being also not easy to check various electric appliance problems in moist environment.
Summary of the invention
For the technical problems in the prior art, the invention discloses a kind of condensation-proof electric systems, comprising: electric appliance
Cabinet;And drying device, it is set to except the Electric Appliance Cabinet, is configured to air feed inside the Electric Appliance Cabinet.
System as described above, wherein the drying device includes: shell, it is seal case, the side of the shell
Air inlet hole and exhaust vent are set;And blower, it is set in the shell, by the exhaust vent by the sky in the shell
Pneumatic transmission enters in the Electric Appliance Cabinet.
System as described above, wherein the drying device further comprises: heater is configured to heat described dry
Dry device inner air.
System as described above, wherein the drying device is mounted on the side wall or top plate of the Electric Appliance Cabinet.
System as described above is located in the Electric Appliance Cabinet wherein the Electric Appliance Cabinet includes: humidity sensor.
System as described above controls the start and stop of the blower wherein the drying device includes: the first relay;
First relay is controlled by the humidity sensor.
System as described above is located in the Electric Appliance Cabinet wherein the Electric Appliance Cabinet includes: temperature sensor.
System as described above controls opening for the heater wherein the drying device includes: the second relay
Stop;First relay is controlled by the humidity sensor.
System as described above, wherein first relay controls the on-off of the circuit of second relay.
System as described above, wherein the drying device further include: temperature-control protector and/or overcurrent protector.
According to another aspect of the present invention, a kind of condensation-proof electric appliance method is proposed, comprising: receive Electric Appliance Cabinet interior humidity
Value;It is more than the first humidity predetermined value in response to humidity value, starts blower;Measure Electric Appliance Cabinet internal temperature values;And in response to temperature
Angle value is lower than the first temperature predetermined value, starts heater.
Method as described above, wherein the first humidity predetermined value is 80%.
Method as described above, wherein the first temperature predetermined value is 20 degrees Celsius.
Method as described above further comprises: being lower than the second humidity predetermined value in response to Electric Appliance Cabinet interior humidity value, stops
Only blower.
Method as described above, wherein the second humidity predetermined value is 50%.
Method as described above further comprises: in response to stopping blower, stopping heater.
Method as described above further comprises: being higher than second temperature predetermined value in response to drier internal temperature values, stops
Only heater.
Method as described above, wherein the second temperature predetermined value is 50 degrees Celsius.
Condensation prevention system and method for the invention has both cost and energy demand advantages, without any chemical drier, only
Few manual maintenance is needed, and energy consumption is extremely low.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to the condensation prevention system of one embodiment of the invention;
Fig. 2 is the drying device structural schematic diagram according to one embodiment of the invention;
Fig. 3 is the drying device system circuit diagram according to one embodiment of the invention;
Fig. 4 is the mounted electric appliance cabinet structure schematic diagram according to one embodiment of the invention;And
Fig. 5 is a kind of drying device flow chart of work methods according to one embodiment of the invention.
Appended drawing reference:
1- Electric Appliance Cabinet;2- drying device;11- air outlet;
12- air inlet;13- humidity sensor;20- exhaust vent
21- shell;22- heater;23- blower;
24- thermorelay;25- loses current protector;26- power supply line;
27- air-blower control relay;28- humiture instrument;29- air inlet hole;
31- air supply duct;32- intake stack.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the following detailed description, the specific embodiment for being used to illustrate the application as the application a part may refer to
Each Figure of description.In the accompanying drawings, similar appended drawing reference describes substantially similar component in different drawings.This Shen
Each specific embodiment please has carried out description detailed enough following, so that having the general of ability domain-dependent knowledge and technology
Logical technical staff can implement the technical solution of the application.It should be appreciated that can also be using other embodiments or to the application
Embodiment carry out structure, logic or electrical property change.
Below by a specific embodiment to further illustrate the technical scheme of the present invention.Those skilled in the art should
Understand, description below should not be used to limit the present invention just for the sake of the convenient understanding for technical solution of the present invention
Protection scope.
Fig. 1 is the structural schematic diagram according to the condensation prevention system of one embodiment of the invention.As shown, of the invention is anti-
Condenser system includes Electric Appliance Cabinet 1 and drying device 2.Drying device 2 is set to except Electric Appliance Cabinet 1.In the inner space of Electric Appliance Cabinet 1
Including multiple electric elements.Drying device 2 is connected by air supply duct 31 and intake stack 32 with the inner space of Electric Appliance Cabinet 1.
Drying device 2 and Electric Appliance Cabinet 1 can have a variety of positional relationships.In some embodiments, drying device 2 and electric appliance
Cabinet 1 can be separated from each other.Drying device 2 can place 1 top of Electric Appliance Cabinet, can also fix 1 side of Electric Appliance Cabinet or lower section, can
According to the status requirement of real space.Drying device 2 can be separated from each other with Electric Appliance Cabinet 1.
In some embodiments, drying device 2 can be directly installed on Electric Appliance Cabinet 1.As shown, according to the present invention
One embodiment, 2 edge of drying device can be used bonding mode with Electric Appliance Cabinet 1 and connect, other existing connections in this field
Mode, such as clamping, welding connection type can also be used for the connection of drying device 2 edge and Electric Appliance Cabinet 1.Electric Appliance Cabinet 1 goes out
Air port 11 is connected with the air inlet hole 29 of drying device 2.In some embodiments, flange company can be used in air outlet 11 and air inlet hole 29
It connects, and by double-layer seal to guarantee the airtightness between Electric Appliance Cabinet 1 and drying device 2.It is similar, the air inlet of Electric Appliance Cabinet 1
Mouth 12 and the exhaust vent 20 of drying device 2 also use sealed connection mode.The tight fitting arrangement of drying device 2 and Electric Appliance Cabinet 1
Cost is advantageously reduced, the volume of occupancy is reduced.Moreover, only need to output air inlet and air outlet on Electric Appliance Cabinet 1 when installation,
Mounting means is simple and convenient for being applied to existing Electric Appliance Cabinet.
It in some embodiments, is to guarantee that drying effect, condensation prevention system further include air supply duct 31 and intake stack 32,
Such as: flexible glue pipeline, PVC pipeline.Other existing interchangeable materials also can be applied to the choosing of connecting material in this field
It takes.Intake stack 32 is located at the inside of Electric Appliance Cabinet 1, and the opening of air inlet 12 and exhaust vent 20 is fixed in one end, and the other end prolongs
Extend to the inside of Electric Appliance Cabinet 1.In some embodiments, the other end of intake stack 32 is located at the lower section of Electric Appliance Cabinet 1.Air supply duct
31 also are located at the inside of Electric Appliance Cabinet 1, and the opening of air outlet 11 and air inlet hole 29 is fixed in one end, and the other end extends to Electric Appliance Cabinet
1 inside.In some embodiments, the other end of intake stack 32 is located at the top of Electric Appliance Cabinet 1.
When drying device 2 and Electric Appliance Cabinet 1 are by the way of close installation, in order to increase air circulation area in Electric Appliance Cabinet,
Air supply duct 31 can be installed in air outlet 11 and air inlet hole 29, and intake stack 32 can be not provided with pipeline in kind, only pass through electricity
The air inlet 12 of device cabinet 1 and the exhaust vent 20 of drying device 2, can send the humid air in Electric Appliance Cabinet 1 in drying device 2 back to.
Fig. 2 is the drying device structural schematic diagram according to one embodiment of the invention, as shown, drying device 2 includes
Exhaust vent 20, shell 21, heater 22, blower 23, thermorelay 24, loses current protector 25, power supply at air inlet hole 29
Line 26, air-blower control relay 27 and humiture instrument 28.
In some embodiments, the range of the length, width and height of shell 21 is all in 15-45cm, using four exclusion seals, rear side
Pipeline uses double-layer seal, and drying device system ontology is made to form a seal.In some embodiments, sealing protection grade
Not less than IP55 standard.
Drying device need not prevent completely dust to enter, and the quantity that dust enters will not cause drying device of the invention
Injury.Meanwhile drying device also can waterproof, being directed at drying device jetting of the invention from each direction should not cause its damage
Evil.Shell 21 can effectively prevent extraneous wet air from entering the harm of secondary dampness caused by device inside, can also extend
The service life of drying device of the present invention improves the working efficiency of drying device.
As shown, humiture instrument 28 is used to adjust the control range of humidity and temperature, power supply line 26 and humiture instrument 28
It is electrically connected with thermorelay 24, air-blower control relay 27, heater 22, blower 23, mistake current protector 25, works as temperature
Degree is more than preset value, and the starting of thermorelay 24 stops heater 22 and works.When blower 23 breaks down, air-blower control after
The starting of electric appliance 27 and simultaneously start-up temperature control the cutting heater 22 of relay 24 and power, and stop heater 22 and work.Power loss stream
Whether there is fault in 25 moment of protector observation circuit, electric current if a failure occurs is excessive, then stops the work of heater 22.
Fig. 3 is the drying device system circuit diagram according to one embodiment of the invention, as shown, wherein circuit symbol is said
It is bright as follows:
FU fuse, JDF relay (control blower and JDR circuit), JDR relay (control heater), T80 two-stage temperature
It spends protector, t θ humiture instrument (adjustable temperature control point), Do1&Do2 and loses current protector disconnecting switch point, HR humiture instrument
(adjustable humidity control point), R/HR humiture instrument (for showing), FH heating device (electricity fever), CT electric current induction coil and mistake
Current protector, M blower.
HR humiture instrument (can be replaced with hygronom) controls JDF, to control blower work.JDF further passes through single-tap
Point control JDR, so that heater could be started in the case where ensure that blower.T θ humiture instrument (replacement of usable temp meter) control
JDR processed starts heater FH in those cases when heating is desired.T80 two-stage temperature protector, Do1&Do2 lose current protector every
From switching point and CT electric current induction coil and current protector is lost for preventing from leaking electricity, FU fuse provides overcurrent protection,
Guarantee the steady operation of drying device.
The present invention can use the alternating voltage of 220V, plant capacity 300w, air output 330m3/ h, maximum noise do not surpass
Cross 60fb.The relay of use is dimerous by coil and contact sets, therefore relay is in circuit diagram of the invention
Also include two parts: a rectangle frame indicates coil;One group of contact symbol indicates contact combination.In some embodiments, dry
Device does not use the processing elements such as any processor, memory, arithmetic unit, and only with basic electronic component, such as sensor,
Cost can be greatly lowered in relay etc..
Fig. 4 is the mounted electric appliance cabinet structure schematic diagram according to one embodiment of the invention.As shown, Electric Appliance Cabinet 1 includes outlet air
Mouth 11, air inlet 12 and humidity sensor 13.Drying device 2 is connected with Electric Appliance Cabinet 1 by air outlet 11 and air inlet 12.It is dry
2 exhaust vent 20 of device is connected with the sealing of 1 air inlet 12 of Electric Appliance Cabinet;2 air inlet hole 29 of drying device and 1 air outlet 11 of Electric Appliance Cabinet are same
Sealing is connected.
Drying device 2 of the invention is by cyclic drying air, thus the drying efficiency improved, and reduce and be dried to
This.Humidity sensor 13 is located in Electric Appliance Cabinet 1 (such as at air inlet 12), the humidity for the air that real-time monitoring enters.When
Electric Appliance Cabinet 1 then can reduce energy consumption with drying device 2 in a dormant state in humidity preset range, reduce expenditure at
This.It will be appreciated by those skilled in the art that humidity sensor 13 choose can the control according to needed for Electric Appliance Cabinet 1 humidity range
Depending on, the selection of sensor is not limitation of the present invention.
In some embodiments, drying device 2 is also able to achieve sequence protection, dehumidifying ensures protection, temperature control protection, overcurrent guarantor
One or more of shield.
In some embodiments, under sequence protected mode, i.e., after blower normally starts, drying device system just be can be obtained
Start the instruction of heater.If, since drying device system temperature overheats, causing drying device system because first starting heater
The circuit problems such as open circuit.To achieve the effect that protect drying device system.
With reference to Fig. 3, under sequence protected mode, JDF relay (contact blower) needs and the cooperation of M blower;JDR relay
(contact heater) needs and FH heating device (electricity fever) cooperation, disperses relay contact.
In some embodiments, under the fault protection scheme that dehumidifies, i.e., when circuit problems such as fan trouble open circuit, short circuits,
Cause mistake current protection starting that can terminate heating installation power supply system, stops heating.In some embodiments, dehumidifying is set as working as case
Starting dehumidifying blower when internal relative humidity is greater than 80%, when relative humidity is lower than 50% in cabinet, dehumidifying blower stops.
With reference to Fig. 3, under the fault protection scheme that dehumidifies, JDF relay (contact blower) needs and HR humiture instrument is (adjustable
Humid control point) cooperation, concentrate relay contact.If humidity, within the scope of default control, HR is disconnected, JDF is also disconnected.
In some embodiments, under temperature control protected mode, i.e., after heater starting, temperature needs preset temperature model again
In enclosing, if being higher by preset temperature, stop heating immediately.To reach protection Electric Appliance Cabinet 1, electricity is burnt out to prevent temperature is excessively high
Device cabinet 1.In some embodiments, heating setpoint is that temperature starts heater when being lower than 20 DEG C, is stopped when temperature is higher than 50 DEG C
Heating.
With reference to Fig. 3, under temperature control protected mode, JDR relay (contact heater) needs and t θ humiture instrument (temperature controllable
Spend control point) cooperation, concentrate relay contact.If temperature is beyond within the scope of default control, t θ is disconnected, and JDR is also disconnected.
In some embodiments, when the system failure causes electric current excessive, then start overcurrent protection, cut off heating installation power supply
System stops heating, to prevent drying device system again because of the excessively high secondary damage of heter temperature.FU fuse is that overcurrent is protected
The element of shield.
Fig. 5 is according to a kind of method flow diagram of condensation prevention system of one embodiment of the invention, as shown in figure 5, anti-cold
Solidifying method includes the following steps:
In step 510, Electric Appliance Cabinet interior humidity value is received;
In step 520, it is more than predetermined value in response to humidity value, starts blower;
In step 530, Electric Appliance Cabinet internal temperature values are measured;And
In step 540, it is lower than predetermined value in response to temperature value, starts heater.
In some embodiments, when Electric Appliance Cabinet interior humidity is more than 80%, start blower.When Electric Appliance Cabinet internal temperature is lower than
20 degrees Celsius, start heater.In some embodiments, if Electric Appliance Cabinet interior humidity value be lower than 50%, stop blower with
Save energy consumption.In some embodiments, if drying device internal temperature values are higher than 50 degrees Celsius, stop heater.If stopped
Only blower then also stops heater.
The dry air of humidity, temperature index qualification is sent into inside Electric Appliance Cabinet by the present invention by drying device, so that electric
Temperature humidity control inside device cabinet is handled simultaneously for the air of recycling back again within a preset range, reaches dry empty
Gas circulates in internal circulation between drying device and Electric Appliance Cabinet.
Some embodiments of the present invention can solve the drying problem of Electric Appliance Cabinet by drying device, using hot air circulation
Principle handled by heat drying, then send cabinet back to after the drying device of the box house air of sealing through the invention
Inside keeps the state that component and other items continues drying out in cabinet, to increase to reach a cyclic process
Cabinet service life and maintenance cost are added.
Condensation prevention system of the invention has both cost and energy demand advantages, without any chemical drier, it is only necessary to few
Manual maintenance, and energy consumption is extremely low.In the case where ambient humidity is greater than 100%, for 1.0 cubic metres of common electric appliances
Cabinet, continuous work one month time, less than 50 degree electricity of energy consumption.
Above-described embodiment is used for illustrative purposes only, and not be limitation of the present invention, correlative technology field it is general
Logical technical staff can also make a variety of changes and modification without departing from the present invention, therefore, all equivalent
Technical solution also should belong to scope disclosed by the invention.
Claims (18)
1. a kind of condensation-proof electric system characterized by comprising
Electric Appliance Cabinet;And
Drying device is set to except the Electric Appliance Cabinet, is configured to air feed inside the Electric Appliance Cabinet.
2. system according to claim 1, which is characterized in that wherein the drying device includes:
Shell is seal case, the side setting air inlet hole and exhaust vent of the shell;And
Blower is set in the shell, and the air in the shell is sent into the Electric Appliance Cabinet by the exhaust vent.
3. system according to claim 2, which is characterized in that wherein the drying device further comprises: heater,
It is configured to heat the drying device inner air.
4. system according to claim 2, which is characterized in that wherein the drying device is mounted on the side of the Electric Appliance Cabinet
On wall or top plate.
5. system according to claim 4, which is characterized in that wherein the Electric Appliance Cabinet includes: humidity sensor, is located at institute
It states in Electric Appliance Cabinet.
6. system according to claim 6, which is characterized in that wherein the drying device includes: the first relay, control
Make the start and stop of the blower;First relay is controlled by the humidity sensor.
7. system according to claim 6, which is characterized in that wherein the Electric Appliance Cabinet includes: temperature sensor, is located at institute
It states in Electric Appliance Cabinet.
8. system according to claim 7, which is characterized in that wherein the drying device includes: the second relay, control
Make the start and stop of the heater;First relay is controlled by the humidity sensor.
9. system according to claim 8, which is characterized in that wherein first relay controls second relay
Circuit on-off.
10. system according to claim 1, which is characterized in that the wherein drying device further include: temperature-control protector
And/or overcurrent protector.
11. a kind of condensation-proof method characterized by comprising
Receive Electric Appliance Cabinet interior humidity value;
It is more than the first humidity predetermined value in response to humidity value, starts blower;
Measure Electric Appliance Cabinet internal temperature values;And
It is lower than the first temperature predetermined value in response to temperature value, starts heater.
12. according to the method for claim 11, which is characterized in that wherein, the first humidity predetermined value is 80%.
13. according to the method for claim 11, which is characterized in that wherein, the first temperature predetermined value is 20 degrees Celsius.
14. according to the method for claim 11, which is characterized in that further comprise: in response to Electric Appliance Cabinet interior humidity value
Lower than the second humidity predetermined value, stop blower.
15. according to the method for claim 14, which is characterized in that wherein, the second humidity predetermined value is 50%.
16. according to the method for claim 14, which is characterized in that further comprise: in response to stopping blower, stopping heating
Device.
17. according to the method for claim 16, which is characterized in that further comprise: in response to drier internal temperature values
Higher than second temperature predetermined value, stop heater.
18. according to the method for claim 17, which is characterized in that wherein, the second temperature predetermined value is 50 degrees Celsius.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112566452A (en) * | 2020-11-19 | 2021-03-26 | 海鹰企业集团有限责任公司 | Anti-condensation circuit of cabinet |
CN113597231A (en) * | 2021-09-08 | 2021-11-02 | 西安应用光学研究所 | Self-adaptive anti-condensation environment control device of open type control cabinet |
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CN206163918U (en) * | 2016-09-14 | 2017-05-10 | 索凌电气有限公司 | Low -voltage switchgear with dehumidification function |
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CN107508153A (en) * | 2017-09-20 | 2017-12-22 | 孙景玉 | A kind of power switch cabinet dehydrating unit |
CN107611820A (en) * | 2017-09-28 | 2018-01-19 | 成都汉度科技有限公司 | A kind of dehumidification system for being used for box-type substation and ring main unit |
CN207925950U (en) * | 2018-03-29 | 2018-09-28 | 江西赣电电气有限公司 | A kind of switchgear assembly with moisture-proof function |
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CN112566452A (en) * | 2020-11-19 | 2021-03-26 | 海鹰企业集团有限责任公司 | Anti-condensation circuit of cabinet |
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