A dehumidifier for switchgear
A technology of switchgear and dehumidification box, which is applied in the cooling/ventilation of substation/switchgear, details of substation/switch layout, substation/power distribution device shell, etc., which can solve incomplete exhaust, air turbulence, and influence on air flow order and other issues to achieve the effect of avoiding potential safety hazards, ensuring orderly entry, and avoiding dust and static electricity
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Embodiment 1
[0017] Example 1: see Figure 1-3 , a dehumidification device for a switch cabinet, comprising a dehumidification box 1 arranged side by side with the switch cabinet body 2, a one-way air flow device 3 connected to the dehumidification box 1 is arranged in the upper part of the switch cabinet, and a side lower part of the dehumidification box 1 is provided. There is a return air outlet 25 which is communicated with the inside of the switchgear body 2. During the dehumidification work of the switchgear, the air in the switchgear body 2 is drawn out in one direction through the one-way air flow device 3, and is dried in the dehumidification box 1. After that, it is sent back into the switch cabinet body 2 by the return air jet port 25, thereby avoiding the interference of the external air to the dehumidification process. The one-way air flow device 3 includes a hydraulic cylinder 4 and an expansion air bag 8. In the center of the inner top surface of the cabinet body 2, a liftin...
Embodiment 2
[0020] Example 2: On the basis of Example 1, a drawer box 24 that is slidably connected to the side of the dehumidification box 1 is inserted. The drawer box 24 is located in the rotary channel 23 and below the connecting vertical pipe 19, and the inside of the drawer box 24 is hollow. In addition, the upper and lower ends are open, and during dehumidification, a filter screen can be installed in the drawer box 24 to avoid incomplete cleaning of the dehumidification screen cover 20 .
[0021]The top of the dehumidification box 1 is provided with a cleaning window 21, which is located directly above the connecting vertical pipe 19. The cleaning window 21 is used to clean and replace the dehumidification net cover 20 in time to ensure the dehumidification effect.
Embodiment 3
[0022] Embodiment 3: On the basis of Embodiment 1, there are sliders 26 on both sides of the lifting plate 6. The sliders 26 are located in the guide grooves 7 and are slidably connected with them. The sliding block 26 prevents the lifting plate 6 from shifting during the lifting process.
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