CN210111300U - Device for preventing closed electrical appliance from generating condensation - Google Patents
Device for preventing closed electrical appliance from generating condensation Download PDFInfo
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- CN210111300U CN210111300U CN201920721229.2U CN201920721229U CN210111300U CN 210111300 U CN210111300 U CN 210111300U CN 201920721229 U CN201920721229 U CN 201920721229U CN 210111300 U CN210111300 U CN 210111300U
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- air
- electrical appliance
- air inlet
- closed electrical
- condensation
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- 238000009833 condensation Methods 0.000 title claims abstract description 25
- 230000005494 condensation Effects 0.000 title claims abstract description 25
- 238000005057 refrigeration Methods 0.000 claims abstract description 29
- 239000004065 semiconductor Substances 0.000 claims abstract description 25
- 238000007791 dehumidification Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000009423 ventilation Methods 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model relates to a device for preventing closed electrical appliance from generating condensation, which comprises a dehumidifying device communicated with the closed electrical appliance, wherein the dehumidifying device comprises an air inlet hole, an air outlet hole and a dehumidifying chamber, the air inlet hole and the air outlet hole are communicated with the closed electrical appliance through a ventilation pipe, so that air can circularly flow along the air inlet hole, the dehumidifying chamber, the air outlet hole and the closed electrical appliance; the dehumidification chamber is provided with a dehumidification device, the dehumidification device comprises a semiconductor refrigeration sheet, a radiator and a condenser, and the semiconductor refrigeration sheet divides the dehumidification chamber into a first air channel and a second air channel; the condenser is arranged in first wind channel to be connected with the semiconductor refrigeration piece, and the radiator is arranged in the second wind channel to be connected with the semiconductor refrigeration piece, fresh air inlet, first wind channel, second wind channel, exhaust vent communicate in proper order. The utility model discloses can also heat its inside air when reducing the inside air humidity of closed electrical apparatus to realized the condensation purpose of preventing to many positions such as inside and outside the closed electrical apparatus.
Description
Technical Field
The utility model belongs to the technical field of seal electrical apparatus dehumidification, especially, relate to a prevent to seal device that electrical apparatus took place condensation.
Background
The enclosed electrical appliance is an enclosed device which uses a metal shell to protect internal conducting bars, insulating materials and related accessories, and is widely applied to the power industry, such as switch cabinets, enclosed buses, GIS and the like, because the enclosed device can effectively prevent the danger of personal electric shock, and simultaneously can effectively protect internal electrical equipment from being corroded by dust and rainwater, and effectively reduce the workload of equipment corrosion and operation and maintenance. However, in a severe environment with high partial air humidity, the surface of the enclosed electrical internal equipment and the shell thereof are prone to condensation, the shell of the equipment is corroded, the insulation resistance value of the equipment is reduced, and in a severe case, the surface of the equipment is subjected to flashover and system tripping is caused, so that the safety operation of the system is seriously damaged. Therefore, the method for effectively preventing the closed electrical appliance from generating condensation has important significance for improving the reliability of equipment.
At present, a plurality of dehumidification devices and methods are used for the interior of a closed electrical appliance, but heating means such as hot air condensation prevention and the like or cooling means such as cooling and dehumidification and the like are mostly adopted, but the heating means cannot fundamentally reduce the air humidity in the interior of the closed electrical appliance, the working efficiency is low, and although the cooling means has a good dehumidification effect, the temperature of the air in the interior of the closed electrical appliance is often reduced, so that the condensation phenomenon occurs at other parts such as an equipment shell, the equipment shell is corroded, the insulation performance of the equipment shell is reduced, and the stable operation of a system is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prevent to seal device that electrical apparatus takes place condensation utilizes the semiconductor refrigeration piece both can refrigerate and heatable characteristics again, realizes the reduction to sealing the inside air humidity of electrical apparatus, also heats its inside air simultaneously to realize the condensation purpose of preventing to sealing many positions such as electrical apparatus inside and outside.
The utility model provides a device for preventing closed electrical appliance from generating condensation, which comprises a dehumidifying device communicated with the closed electrical appliance, wherein the dehumidifying device comprises an air inlet hole, an air outlet hole and a dehumidifying chamber, the air inlet hole and the air outlet hole are communicated with the closed electrical appliance through a ventilation pipe, and air can circularly flow along the air inlet hole, the dehumidifying chamber, the air outlet hole and the closed electrical appliance;
the dehumidification chamber is provided with a dehumidification device, the dehumidification device comprises a semiconductor refrigeration sheet, a radiator and a condenser, and the semiconductor refrigeration sheet divides the dehumidification chamber into a first air channel and a second air channel; the condenser is arranged in first wind channel to be connected with the semiconductor refrigeration piece, and the radiator is arranged in the second wind channel to be connected with the semiconductor refrigeration piece, fresh air inlet, first wind channel, second wind channel, exhaust vent communicate in proper order.
Furthermore, a water collecting box is arranged below the condenser, and a water level observation window and a drain valve are respectively arranged on the side surface and the bottom of the water collecting box.
Furthermore, the inlet of the air inlet hole and the outlet of the air outlet hole are provided with filter screens.
Further, a fan is arranged in the air inlet hole.
Furthermore, temperature sensors are arranged in the air inlet and outside the air inlet.
By means of the scheme, the device for preventing the closed electrical appliance from generating condensation can reduce the humidity of the air in the closed electrical appliance and heat the air in the closed electrical appliance, and therefore the purpose of preventing condensation at multiple positions inside and outside the closed electrical appliance is achieved.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a device for preventing a sealed electrical appliance from generating condensation according to the present invention.
Reference numbers in the figures:
1-closed electrical appliance; 2-a ventilation pipe; 3, filtering by using a filter screen; 4-a dehumidifying device; 5-a temperature sensor; 6-a dehumidifying device; 61-semiconductor refrigeration; 62-a heat sink; 63-a condenser; 7-a fan; 8-a water catchment box; 81-water level observation window; 82-drain valve.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1, the embodiment provides a device for preventing a closed electrical appliance from generating condensation, which includes a dehumidifying device 4 (housing) for communicating with a closed electrical appliance 1 (housing), wherein the dehumidifying device 4 includes an air inlet, an air outlet and a dehumidifying chamber, the air inlet and the air outlet are communicated with the closed electrical appliance 1 through a ventilating pipe 2, so that air can circularly flow along the air inlet, the dehumidifying chamber, the air outlet and the closed electrical appliance 1;
the dehumidifying chamber is provided with a dehumidifying device 6, the dehumidifying device 6 comprises a semiconductor refrigerating sheet 61, a radiator 62 and a condenser 63, and the dehumidifying chamber is divided into a refrigerating channel and a heating channel by the semiconductor refrigerating sheet 61; the condenser 63 is arranged in the refrigeration channel and is connected with the semiconductor refrigeration piece 61, the radiator 62 is arranged in the heating channel and is connected with the semiconductor refrigeration piece 61, and the air inlet hole, the refrigeration channel, the heating channel and the air outlet hole are communicated in sequence.
In this embodiment, a water collection box 8 is disposed below the condenser 63, and a water level observation window 81 and a drain valve 82 are disposed on a side surface and a bottom portion of the water collection box 8, respectively.
In this embodiment, the inlet of the air inlet and the outlet of the air outlet are provided with a filter screen 3.
In this embodiment, a fan 7 is provided in the air inlet hole.
In this embodiment, temperature sensors 5 are provided inside and outside the air inlet hole.
The present invention will be described in further detail below.
The closed electrical appliance 1 is a closed device consisting of a metal casing and internal electrical equipment, and two ventilation holes are arranged on the casing and used for connecting a dehumidifying device 4. The shell of the dehumidifying device 4 is used for protecting the internal elements of the device and simultaneously forming 4 air channels of the dehumidifying device, two air vents are also arranged on the shell, and the filter screen 3 is arranged at the air vents (air outlets) and used for preventing external foreign matters from entering the dehumidifying device 4.
The semiconductor refrigeration sheet 61 is installed on the connection position of the two air channels in the middle, in order to prevent the phenomenon that the temperature of the air in the closed electric appliance 1 is lower than the external atmospheric temperature due to the refrigeration effect, so that the shell of the closed electric appliance 1 is condensed and corroded, and the insulation resistance is reduced, in the embodiment, by utilizing the characteristic that the semiconductor refrigeration sheet can refrigerate and heat, the heat dissipation surface and the refrigeration surface of the semiconductor refrigeration sheet 61 are respectively arranged in the two air channels in the middle and are respectively connected with the radiator 62 and the condenser 63, when the semiconductor refrigeration sheet works, the air is firstly cooled by the condenser 63 to remove internal moisture, then the temperature is raised by the radiator 62, because the heat dissipation power of the semiconductor refrigeration sheet is slightly higher than the refrigeration power, the temperature of the air acted by the dehumidification device 4 is slightly higher than the air before action, and simultaneously, the temperature of, therefore, the temperature of the air inside the closed electric appliance 1 is obviously higher than the temperature of the outside atmosphere under the action of the dehumidifying device 4, so that the moisture in the air inside the closed electric appliance is removed, the condensation inside the closed electric appliance is prevented, the temperature of the air inside the equipment is ensured, and the condensation phenomenon at the outer shell of the equipment is prevented. In addition, temperature sensors 5 are respectively arranged on the outer portion of the whole device and an air inlet (hole) of the air channel and used for monitoring the atmospheric temperature and the air inlet temperature of the device (namely the air temperature inside the closed electric appliance), and the device is allowed to stop after the internal air temperature is higher than the atmospheric temperature by a certain limit value during operation, so that the shell of the closed electric appliance 1 is prevented from being condensed. The fan 7 is installed in the air inlet hole for enhancing the circulation flow of the air inside the device, and in order to prevent the dehumidified air from being humidified again, the air flowing direction is set as: the closed electrical appliance 1-fan 7-condenser 63-radiator 62 closes the electrical appliance 1, i.e. the air passes through the catchment box 8 first and then through the condenser 63. The ventilation pipe 2 is used to connect the enclosed electrical appliance 2 to the dehumidifying apparatus 4, while the connection between the ventilation pipe 2 and the ventilation hole of the device should be sealed.
When the closed electrical appliance 1 is in operation, the operator can activate the dehumidifying means 4 according to the humidity of the environment, i.e. the fan 7 and the dehumidifying device 6 are powered on, and then the fan 7 will cause the air inside the apparatus to flow in the direction indicated by the dashed arrow in the figure. When passing through the condenser 63, the moisture in the air flowing through is condensed and falls on the water collection box 8 below due to the refrigeration effect of the semiconductor refrigeration sheet 61, the condenser 63 is made of a material with good heat conduction performance, the main effect is to increase the contact surface of the semiconductor refrigeration sheet 61 and the air, the cooling effect is improved, meanwhile, the water collection box 8 is arranged below the condenser 63 and used for collecting the condensed water in the air, and the side surface and the bottom of the water collection box 8 are respectively provided with a water level observation window 81 and a drain valve 82 and used for observing and timely removing the moisture in the water collection box 8.
The air dehumidified by cooling is then reheated by the radiator 62, and the radiator 62 is made of a material having good heat conductivity to increase the heat radiation area, as well as the condenser 63. The air that passes through the action of the dehumidifying element 6 is then sent back to the inside of the closed electrical appliance 1, and at the same time, after the continuous circulation action of the device, the humidity of the air near the inside of the closed electrical appliance 1 is obviously reduced, thereby preventing the condensation phenomenon from occurring inside the closed electrical appliance. Meanwhile, the air inlet position and the outside of the dehumidifying device 4 are respectively provided with a temperature sensor 5 for measuring the air temperature inside and outside the sealed electric appliance 1, so that the temperature of the air inside the sealed electric appliance 1 processed by the dehumidifying device 4 is higher than that of the air outside, and the phenomenon of condensation at the shell of the sealed electric appliance 1 is prevented.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A device for preventing the closed electrical appliance from generating condensation is characterized by comprising a dehumidifying device communicated with the closed electrical appliance, wherein the dehumidifying device comprises an air inlet hole, an air outlet hole and a dehumidifying chamber, the air inlet hole and the air outlet hole are communicated with the closed electrical appliance through a ventilating pipe, and air can circularly flow along the air inlet hole, the dehumidifying chamber, the air outlet hole and the closed electrical appliance;
the dehumidification chamber is provided with a dehumidification device, the dehumidification device comprises a semiconductor refrigeration sheet, a radiator and a condenser, and the semiconductor refrigeration sheet divides the dehumidification chamber into a first air channel and a second air channel; the condenser arrange in first wind channel, and with the semiconductor refrigeration piece is connected, the radiator arrange in the second wind channel, and with the semiconductor refrigeration piece is connected, fresh air inlet, first wind channel, second wind channel, exhaust vent communicate in proper order.
2. The device for preventing the closed electric appliance from generating the condensation as claimed in claim 1, wherein a water collecting box is arranged below the condenser, and a water level observation window and a drain valve are respectively arranged on the side surface and the bottom of the water collecting box.
3. The device for preventing the closed electric appliance from generating the condensation as claimed in claim 1, wherein the inlet of the air inlet hole and the outlet of the air outlet hole are provided with a filter screen.
4. The device for preventing the closed electric appliance from generating the condensation as claimed in claim 1, wherein a fan is arranged in the air inlet hole.
5. The device for preventing the closed electric appliance from generating the condensation as claimed in claim 1, wherein a temperature sensor is arranged in and outside the air inlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920721229.2U CN210111300U (en) | 2019-05-20 | 2019-05-20 | Device for preventing closed electrical appliance from generating condensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920721229.2U CN210111300U (en) | 2019-05-20 | 2019-05-20 | Device for preventing closed electrical appliance from generating condensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210111300U true CN210111300U (en) | 2020-02-21 |
Family
ID=69560740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920721229.2U Expired - Fee Related CN210111300U (en) | 2019-05-20 | 2019-05-20 | Device for preventing closed electrical appliance from generating condensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210111300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129974A (en) * | 2020-09-20 | 2020-12-25 | 郑州精铖能源技术有限公司 | Dampproofing structure in electric energy analysis and detection appearance |
| CN112928620A (en) * | 2021-02-08 | 2021-06-08 | 刘呆红 | High-efficient dehumidification switch board |
-
2019
- 2019-05-20 CN CN201920721229.2U patent/CN210111300U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129974A (en) * | 2020-09-20 | 2020-12-25 | 郑州精铖能源技术有限公司 | Dampproofing structure in electric energy analysis and detection appearance |
| CN112928620A (en) * | 2021-02-08 | 2021-06-08 | 刘呆红 | High-efficient dehumidification switch board |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |