CN203645181U - Dehumidification system of high tension switchgear - Google Patents
Dehumidification system of high tension switchgear Download PDFInfo
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- CN203645181U CN203645181U CN201320130918.9U CN201320130918U CN203645181U CN 203645181 U CN203645181 U CN 203645181U CN 201320130918 U CN201320130918 U CN 201320130918U CN 203645181 U CN203645181 U CN 203645181U
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- 238000007791 dehumidification Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013066 combination product Substances 0.000 description 1
- 229940127555 combination product Drugs 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a dehumidification system of a high tension switchgear. The dehumidification system of the high tension switchgear comprises a front dehumidification unit, a rear dehumidification unit and a power supply device (1). The front dehumidification unit and the rear dehumidification unit are arranged in a gap in the high tension switchgear (2). The power supply terminals of the front dehumidification unit and the rear dehumidification unit are respectively connected to the power supply device (1) by power lines. Water outlets of the front dehumidification unit and the rear dehumidification unit are respectively communicated with the exterior (30) of the switchgear by combined drainpipes, or directly communicated with a cable trench of the high tension switchgear (2). The dehumidification system of the high tension switchgear protects the high tension switchgear and other switchgears against influence caused by environment humidity and also prevents equipment in the switchgears from being affected by damp and avoids declination of insulation performance of electric appliance.
Description
Technical field
The utility model relates to a kind of high-tension switch cabinet dehumidification system.
Background technology
For a long time, in the high-tension switch cabinet of power supply and distribution system and other switch cubicle, be subject to the impact of ambient humidity, high-tension switch cabinet moves under semitight environment, there is no good ventilated environment, as long as high humidity weather produces, the air of high humidity will constantly intrude in high-tension switch cabinet, once highly humid air enters, be just difficult to Natural excrement, therefore in high-tension switch cabinet, equipment makes moist, electrical apparatus insulation declines, and causes that charging equipment ground connection, charging equipment are discharged over the ground and the problem such as power supply short circuit, before power supply and distribution system, the equipment problem of making moist is taked to following several method processing at present: 1, in high-tension switch cabinet and other switch cubicle, install heater additional, but electric heater only can only play humid air decomposition to local humid air around, make humid air carry out gas, water separates, hydrone rises after being heated, cooling on high-tension switch cabinet surrounding or high-voltage switch gear pile crown surrounding devices, produce condensation, moisture still remains in bin inside, make on the contrary the appliance component in bin more easily make moist, be unfavorable for the safe operation of equipment, more can not effectively reduce bin interior humidity.2, adopt Imported Insulation material, increase the insulation of high-tension switch cabinet live part.3, adopt many large power air-conditioned machines to the dehumidifier of high-voltage switch gear chamber.After treatment, find that effect is not remarkable, in high-tension switch cabinet interval, electric discharge is with old electrical discharge sound or fairly obvious, and equipment operation is still worked under unreliable state.
Summary of the invention
The utility model provides a kind of high-tension switch cabinet dehumidification system, and it not only can avoid the impact of ambient humidity on high-tension switch cabinet and other switch cubicles, prevents that the interior equipment of cabinet from making moist and the decline of electrical apparatus insulation performance.
The utility model has adopted following technical scheme: a kind of high-tension switch cabinet dehumidification system, it comprises anterior Dehumidifying element, rear portion Dehumidifying element and charger, anterior Dehumidifying element and rear portion Dehumidifying element are positioned at the interval of high-tension switch cabinet, the anterior power end of Dehumidifying element and the power end of rear portion Dehumidifying element are all connected with charger by power line, the anterior discharge outlet of Dehumidifying element and the discharge outlet of rear portion Dehumidifying element are connected by combined water drain pipe and switch cubicle outdoor or the discharge outlet of anterior Dehumidifying element and the discharge outlet of rear portion Dehumidifying element are directly connected with the cable trough of high-tension switch cabinet.
Described anterior Dehumidifying element comprises dehumidifier I and dehumidifier II, described rear portion Dehumidifying element comprises dehumidifier III, dehumidifier III is between dehumidifier I and dehumidifier II, dehumidifier I, dehumidifier II and dehumidifier III are angular distribution, the top of dehumidifier I and dehumidifier II is respectively equipped with exhaust outlet I and exhaust outlet II, be respectively equipped with air inlet I and air inlet II in the side of dehumidifier I and dehumidifier II, the bottom of dehumidifier I and dehumidifier II is respectively equipped with drain outlet I and drain outlet II, drain outlet I and drain outlet II are connected with respectively outlet pipe I and outlet pipe II, one end of outlet pipe I is connected with drain outlet I, one end of outlet pipe II is connected with drain outlet II, the top of dehumidifier III is provided with exhaust outlet III, the side of dehumidifier III is provided with air inlet III, dehumidifier III bottom is provided with drain outlet III, drain outlet III is connected with outlet pipe III, one end of outlet pipe III is connected with drain outlet III, combined water drain pipe comprises the rear portion drainage pipe that anterior drainage pipe that the bottom of anterior Dehumidifying element is provided with is connected with the other end of outlet pipe III, the other end of outlet pipe I is communicated with anterior drainage pipe by elbow water inlet I, the other end of outlet pipe II is connected with anterior drainage pipe by elbow water inlet II, outlet pipe III is connected with one end of rear portion drainage pipe, the other end of rear portion drainage pipe is connected with anterior drainage pipe by threeway.
Described anterior Dehumidifying element comprises dehumidifier I and dehumidifier II, described rear portion Dehumidifying element comprises dehumidifier III, dehumidifier III is between dehumidifier I and dehumidifier II, dehumidifier I, dehumidifier II and dehumidifier III are angular distribution, the top of dehumidifier I and dehumidifier II is respectively equipped with exhaust outlet I and exhaust outlet II, be respectively equipped with air inlet I and air inlet II in the side of dehumidifier I and dehumidifier II, the bottom of dehumidifier I and dehumidifier II is respectively equipped with drain outlet I and drain outlet II, drain outlet I and drain outlet II are connected with respectively outlet pipe I and outlet pipe II, one end of outlet pipe I is connected with drain outlet I, one end of outlet pipe II is connected with drain outlet II, the top of dehumidifier III is provided with exhaust outlet III, the side of dehumidifier III is provided with air inlet III, dehumidifier III bottom is provided with drain outlet III, drain outlet III is connected with outlet pipe III, one end of outlet pipe III is connected with drain outlet III, the other end of outlet pipe I is connected with cable trough, outlet pipe II is connected with cable trough, the other end in outlet pipe III is connected with cable trough.The dehumidifier I of described anterior Dehumidifying element and dehumidifier II bottom are respectively equipped with power interface I and power interface II, the power interface I of dehumidifier I is connected with charger by power line, the power interface II of dehumidifier II is connected with charger by power line, and the power interface III that the dehumidifier III bottom of rear portion Dehumidifying element is provided with is connected with charger by power line.Described charger is set to the DC power supply of 12V, and the DC power supply of 12V is converted after the inverter inversion of 250W by the 220V power supply of high-voltage board.
The utlity model has following beneficial effect: the utility model is provided with three dehumidifiers, dehumidifier is as a major component, in high-voltage switch gear interval, combine, form a dehumidification system, the hydrone in the highly humid air in high-voltage switch gear interval, progressively collect in catchmenting of combination product close, so not only can avoid affected by environment high humidity in high-tension switch cabinet interval, preventing electrical apparatus insulation declines, charging equipment ground connection and charging equipment discharge and the problem such as power supply short circuit over the ground, greatly reduce investment, the effect having produced, improve electric power safety.Power supply in high-tension switch cabinet for power acquisition of the present utility model, can save use cost so greatly.The utility model has not only solved long-term puzzlement, high-tension switch cabinet interval charging equipment makes moist that the charging equipment ground connection, the charging equipment that cause discharge over the ground and the problem such as power supply short circuit, and make in high-tension switch cabinet interval humidity be not more than 70RH% to move below, improve the insulation of high-tension switch cabinet interval charging equipment, ensure equipment safety operation.The utility model adopts fully automatic working pattern, it can be according to the device category of installing in high-voltage switch gear interval and high-tension apparatus deployment scenarios in high-tension switch cabinet, can combine flexibly.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 be the utility model by combined water drain pipe the outdoor schematic diagram being connected with switch cubicle.
Fig. 3 is the schematic diagram that the utility model is directly connected with the cable trough of high-tension switch cabinet.
Embodiment
Embodiment mono-, in Fig. 1 and Fig. 2, the utility model provides a kind of high-tension switch cabinet dehumidification system, it comprises anterior Dehumidifying element, rear portion Dehumidifying element and charger 1, anterior Dehumidifying element and rear portion Dehumidifying element are positioned at the interval of high-tension switch cabinet 2, the anterior power end of Dehumidifying element and the power end of rear portion Dehumidifying element are all connected with charger 1 by power line, the anterior discharge outlet of Dehumidifying element and the discharge outlet of rear portion Dehumidifying element are connected with outdoor 30 of switch cubicle by combined water drain pipe, described anterior Dehumidifying element comprises dehumidifier I 3 and dehumidifier II 4, described rear portion Dehumidifying element comprises dehumidifier III 5, dehumidifier III 5 is between dehumidifier I 3 and dehumidifier II 4, dehumidifier I 3, dehumidifier II 4 and dehumidifier III 5 are angular distribution, the top of dehumidifier I 3 and dehumidifier II 4 is respectively equipped with exhaust outlet I 6 and exhaust outlet II 7, be respectively equipped with air inlet I 8 and air inlet II 9 in the side of dehumidifier I 3 and dehumidifier II 4, the bottom of dehumidifier I 3 and dehumidifier II 4 is respectively equipped with drain outlet I 10 and drain outlet II 11, drain outlet I 10 and drain outlet II 11 are connected with respectively outlet pipe I 12 and outlet pipe II 13, one end of outlet pipe I 12 is connected with drain outlet I 10, one end of outlet pipe II 13 is connected with drain outlet II 11, the top of dehumidifier III 5 is provided with exhaust outlet III 14, the side of dehumidifier III 5 is provided with air inlet III 15, dehumidifier III 5 bottoms are provided with drain outlet III 16, drain outlet III 16 is connected with outlet pipe III 17, one end of outlet pipe III 17 is connected with drain outlet III 16, combined water drain pipe comprises the rear portion drainage pipe 19 that anterior drainage pipe 18 that the bottom of anterior Dehumidifying element is provided with is connected with the other end of outlet pipe III 17, the other end of outlet pipe I 12 is communicated with anterior drainage pipe 18 by elbow water inlet I 20, the other end of outlet pipe II 13 is connected with anterior drainage pipe 18 by elbow water inlet II 21, outlet pipe III 17 is connected with one end of rear portion drainage pipe 19, the other end of rear portion drainage pipe 19 is connected with anterior drainage pipe 18 by threeway 22, dehumidifier I 3 and dehumidifier II 4 bottoms of anterior Dehumidifying element are respectively equipped with power interface I 23 and power interface II 24, the power interface I 23 of dehumidifier I 3 is connected with charger 1 by power line 25, the power interface II 24 of dehumidifier II 4 is connected with charger 1 by power line 25, the power interface III 26 that dehumidifier III 5 bottoms of rear portion Dehumidifying element are provided with is connected with charger 1 by power line 25, described charger 1 is set to the DC power supply of 12V, the DC power supply of 12V is converted after inverter 27 inversions of 250W by the 220V power supply 28 of high-voltage board.
Embodiment bis-, in Fig. 3, the present embodiment provides a kind of high-tension switch cabinet dehumidification system, it comprises anterior Dehumidifying element, rear portion Dehumidifying element and charger 1, anterior Dehumidifying element and rear portion Dehumidifying element are positioned at the interval of high-tension switch cabinet 2, the anterior power end of Dehumidifying element and the power end of rear portion Dehumidifying element are all connected with charger 1 by power line, the anterior discharge outlet of Dehumidifying element and the discharge outlet of rear portion Dehumidifying element are directly connected with the cable trough of high-tension switch cabinet 2, anterior Dehumidifying element comprises dehumidifier I 3 and dehumidifier II 4, described rear portion Dehumidifying element comprises dehumidifier III 5, dehumidifier III 5 is between dehumidifier I 3 and dehumidifier II 4, dehumidifier I 3, dehumidifier II 4 and dehumidifier III 5 are angular distribution, the top of dehumidifier I 3 and dehumidifier II 4 is respectively equipped with exhaust outlet I 6 and exhaust outlet II 7, be respectively equipped with air inlet I 8 and air inlet II 9 in the side of dehumidifier I 3 and dehumidifier II 4, the bottom of dehumidifier I 3 and dehumidifier II 4 is respectively equipped with drain outlet I 10 and drain outlet II 11, drain outlet I 10 and drain outlet II 11 are connected with respectively outlet pipe I 12 and outlet pipe II 13, one end of outlet pipe I 12 is connected with drain outlet I 10, one end of outlet pipe II 13 is connected with drain outlet II 11, the top of dehumidifier III 5 is provided with exhaust outlet III 14, the side of dehumidifier III 5 is provided with air inlet III 15, dehumidifier III 5 bottoms are provided with drain outlet III 16, drain outlet III 16 is connected with outlet pipe III 17, one end of outlet pipe III 17 is connected with drain outlet III 16, the other end of outlet pipe I 12 is connected with cable trough, outlet pipe II 13 is connected with cable trough, the other end in outlet pipe III 17 is connected with cable trough, the dehumidifier I 3 of described anterior Dehumidifying element and dehumidifier II 4 bottoms are respectively equipped with power interface I 23 and power interface II 24, the power interface I 23 of dehumidifier I 3 is connected with charger 1 by power line 25, the power interface II 24 of dehumidifier II 4 is connected with charger 1 by power line 25, the power interface III 26 that dehumidifier III 5 bottoms of rear portion Dehumidifying element are provided with is connected with charger 1 by power line 25, described charger 1 is set to the DC power supply of 12V, the DC power supply of 12V is converted after inverter 27 inversions of 250W by the 220V power supply 28 of high-voltage board.
The course of work of the present utility model is: the course of work of anterior Dehumidifying element is: dehumidifier I 3: the power interface I 23 of by charger 1, power supply being inputted respectively to dehumidifier I 3 by power line 25; In the time that the temperature in high-voltage switch gear reaches startup value, dehumidifier I 3 enters circulation dehumidifier work, stops value until the interior greenhouse of high-tension switch cabinet degree is down to; In the time that dehumidifier I 3 enters circulation dehumidifier work, highly humid air in high-tension switch cabinet is in air inlet I 8 enters dehumidifier I 3, humid air enters the condensation chamber of dehumidifier I 3, hydrone in humid air, be adsorbed on the cooling piece of cool room, humid air is after treatment discharged dehumidifier I 3 through exhaust outlet I 6, enter high-tension switch cabinet, humid air in high-tension switch cabinet is under the operating state of dehumidifier I 3, force humid air in high-tension switch cabinet in continuous circulation, the humidity of high-tension switch cabinet is progressively declined.The hydrone condensing in a large number, forms the globule at cool room, flows out through drain outlet I 10, is pooled to anterior drainage pipe 18 by outlet pipe I 12; Dehumidifier II 4: the power interface II 24 of by charger 1, power supply being inputted respectively to dehumidifier II 4 by power line 25; In the time that the temperature in high-voltage switch gear reaches startup value, dehumidifier II 4 enters circulation dehumidifier work, stops value until the interior greenhouse of high-tension switch cabinet degree is down to; In the time that dehumidifier II 4 enters circulation dehumidifier work, highly humid air in high-tension switch cabinet is in air inlet II 9 enters dehumidifier II 4, humid air enters the condensation chamber of dehumidifier II 4, hydrone in humid air, be adsorbed on the cooling piece of cool room, humid air is after treatment discharged dehumidifier II 4 through exhaust outlet II 7, enter high-tension switch cabinet, humid air in high-tension switch cabinet is under the operating state of dehumidifier II 4, force humid air in high-tension switch cabinet in continuous circulation, the humidity of high-tension switch cabinet is progressively declined.The hydrone condensing in a large number, forms the globule at cool room, flows out through drain outlet II 11, is pooled to anterior drainage pipe 18 by outlet pipe II 13; The course of work of rear portion Dehumidifying element is: the power interface III 26 of by charger 1, power supply being inputted respectively to dehumidifier III 5 by power line 25; In the time that the temperature in high-voltage switch gear reaches startup value, dehumidifier III 5 enters circulation dehumidifier work, stops value until the interior greenhouse of high-tension switch cabinet degree is down to; In the time that dehumidifier III 5 enters circulation dehumidifier work, highly humid air in high-tension switch cabinet is in air inlet III 15 enters dehumidifier III 5, humid air enters the condensation chamber of dehumidifier III 5, hydrone in humid air, be adsorbed on the cooling piece of cool room, humid air is after treatment discharged dehumidifier III 5 through exhaust outlet III 14, enter high-tension switch cabinet, humid air in high-tension switch cabinet is under the operating state of dehumidifier III 5, force humid air in high-tension switch cabinet in continuous circulation, the humidity of high-tension switch cabinet is progressively declined.The hydrone condensing in a large number, forms the globule at cool room, flows out through drain outlet III 16, and by being pooled to after outlet pipe III 17, rear portion drainage pipe 19 and threeway 22 in anterior drainage pipe 18, the draining of three dehumidifiers is pooled to the interior discharge of anterior drainage pipe 18.
Claims (5)
1. a high-tension switch cabinet dehumidification system, it is characterized in that, it comprises anterior Dehumidifying element, rear portion Dehumidifying element and charger (1), anterior Dehumidifying element and rear portion Dehumidifying element are positioned at the interval of high-tension switch cabinet (2), the anterior power end of Dehumidifying element and the power end of rear portion Dehumidifying element are all connected with charger (1) by power line, the anterior discharge outlet of Dehumidifying element and the discharge outlet of rear portion Dehumidifying element is connected with outdoor (30) of switch cubicle by combined water drain pipe or the discharge outlet of anterior Dehumidifying element and the discharge outlet of rear portion Dehumidifying element are directly connected with the cable trough of high-tension switch cabinet (2).
2. high-tension switch cabinet dehumidification system according to claim 1, it is characterized in that, described anterior Dehumidifying element comprises dehumidifier I (3) and dehumidifier II (4), described rear portion Dehumidifying element comprises dehumidifier III (5), dehumidifier III (5) is positioned between dehumidifier I (3) and dehumidifier II (4), dehumidifier I (3), dehumidifier II (4) and dehumidifier III (5) are angular distribution, the top of dehumidifier I (3) and dehumidifier II (4) is respectively equipped with exhaust outlet I (6) and exhaust outlet II (7), be respectively equipped with air inlet I (8) and air inlet II (9) in the side of dehumidifier I (3) and dehumidifier II (4), the bottom of dehumidifier I (3) and dehumidifier II (4) is respectively equipped with drain outlet I (10) and drain outlet II (11), drain outlet I (10) and drain outlet II (11) are connected with respectively outlet pipe I (12) and outlet pipe II (13), one end of outlet pipe I (12) is connected with drain outlet I (10), one end of outlet pipe II (13) is connected with drain outlet II (11), the top of dehumidifier III (5) is provided with exhaust outlet III (14), the side of dehumidifier III (5) is provided with air inlet III (15), dehumidifier III (5) bottom is provided with drain outlet III (16), drain outlet III (16) is connected with outlet pipe III (17), one end of outlet pipe III (17) is connected with drain outlet III (16), combined water drain pipe comprises the rear portion drainage pipe (19) that anterior drainage pipe (18) that the bottom of anterior Dehumidifying element is provided with is connected with the other end of outlet pipe III (17), the other end of outlet pipe I (12) is communicated with anterior drainage pipe (18) by elbow water inlet I (20), the other end of outlet pipe II (13) is connected with anterior drainage pipe by elbow water inlet II (21), outlet pipe III (17) is connected with one end of rear portion drainage pipe (19), the other end of rear portion drainage pipe (19) is connected with anterior drainage pipe (18) by threeway (22).
3. high-tension switch cabinet dehumidification system according to claim 1, it is characterized in that, described anterior Dehumidifying element comprises dehumidifier I (3) and dehumidifier II (4), described rear portion Dehumidifying element comprises dehumidifier III (5), dehumidifier III (5) is positioned between dehumidifier I (3) and dehumidifier II (4), dehumidifier I (3), dehumidifier II (4) and dehumidifier III (5) are angular distribution, the top of dehumidifier I (3) and dehumidifier II (4) is respectively equipped with exhaust outlet I (6) and exhaust outlet II (7), be respectively equipped with air inlet I (8) and air inlet II (9) in the side of dehumidifier I (3) and dehumidifier II (4), the bottom of dehumidifier I (3) and dehumidifier II (4) is respectively equipped with drain outlet I (10) and drain outlet II (11), drain outlet I (10) and drain outlet II (11) are connected with respectively outlet pipe I (12) and outlet pipe II (13), one end of outlet pipe I (12) is connected with drain outlet I (10), one end of outlet pipe II (13) is connected with drain outlet II (11), the top of dehumidifier III (5) is provided with exhaust outlet III (14), the side of dehumidifier III (5) is provided with air inlet III (15), dehumidifier III (5) bottom is provided with drain outlet III (16), drain outlet III (16) is connected with outlet pipe III (17), one end of outlet pipe III (17) is connected with drain outlet III (16), the other end of outlet pipe I (12) is connected with cable trough, outlet pipe II (13) is connected with cable trough, the other end in outlet pipe III (17) is connected with cable trough.
4. according to the high-tension switch cabinet dehumidification system described in claim 2 or 3, it is characterized in that, the dehumidifier I (3) of described anterior Dehumidifying element and dehumidifier II (4) bottom are respectively equipped with power interface I (23) and power interface II (24), the power interface I (23) of dehumidifier I (3) is connected with charger (1) by power line (25), the power interface II (24) of dehumidifier II (4) is connected with charger (1) by power line (25), the power interface III (26) that dehumidifier III (5) bottom of rear portion Dehumidifying element is provided with is connected with charger (1) by power line (25).
5. high-tension switch cabinet dehumidification system according to claim 4, it is characterized in that, described charger (1) is set to the DC power supply of 12V, and the DC power supply of 12V is converted after inverter (27) inversion of 250W by the 220V power supply (28) of high-voltage board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320130918.9U CN203645181U (en) | 2013-03-22 | 2013-03-22 | Dehumidification system of high tension switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320130918.9U CN203645181U (en) | 2013-03-22 | 2013-03-22 | Dehumidification system of high tension switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645181U true CN203645181U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320130918.9U Expired - Fee Related CN203645181U (en) | 2013-03-22 | 2013-03-22 | Dehumidification system of high tension switchgear |
Country Status (1)
| Country | Link |
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| CN (1) | CN203645181U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227423A (en) * | 2013-03-22 | 2013-07-31 | 江苏省电力公司泰州供电公司 | Dehumidification system of high voltage switch cabinet |
| CN107552453A (en) * | 2017-09-29 | 2018-01-09 | 无锡圣美环境科技有限公司 | Cleaning dolly with dehumidifier |
-
2013
- 2013-03-22 CN CN201320130918.9U patent/CN203645181U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227423A (en) * | 2013-03-22 | 2013-07-31 | 江苏省电力公司泰州供电公司 | Dehumidification system of high voltage switch cabinet |
| CN107552453A (en) * | 2017-09-29 | 2018-01-09 | 无锡圣美环境科技有限公司 | Cleaning dolly with dehumidifier |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20180322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |