An anti-condensation non-assisted ventilation device for ring network cabinets

A ventilation device and anti-condensation technology, which is applied in the substation/distribution device enclosure, substation/switchgear cooling/ventilation, substation/switch layout details, etc. Easy to install, lower temperature effect
CN109494596BActive Publication Date: 2020-09-01STATE GRID SHANDONG ELECTRIC POWER +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID SHANDONG ELECTRIC POWER
Publication Date
2020-09-01

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Abstract

The invention discloses an anti-condensation unassisted ventilation device for a ring main unit, and relates to the technical field of ring main unit ventilation devices. The device comprises a support seat disposed above a cable trench and a cabinet body disposed above the support seat, wherein the cabinet body is connected with the support seat, and the upper end face of the support seat is provided with a plurality of ventilation devices. Each ventilation device comprises a wind cap, a connecting pipe and a support cylinder. The upper end of each connecting pipe is connected with the wind cap, and each support cylinder sleeves the corresponding connecting pipe. Each support cylinder is connected with the corresponding connecting pipe, and cooperates with a through hole in the upper endface of the support seat. A limiting plate is disposed between the connecting pipes and the support cylinders, and an elastic part is disposed between the limiting plate and the connecting pipes. Thewall of each support cylinder is provided with an installation hole, and the installation holes cooperate with the limiting plates. According to the invention, the hot air in the cable trench can be prevented from entering the cabinet body to generate a condensation phenomenon, and the device prevents the rusting of a switch in the cabinet body from causing the wrong operations, thereby improvingthe power supply reliability. Moreover, there is no need of a large amount of manpower and material resources for removing the condensation of the ring main unit, and the potential safety hazards arereduced.
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Description

technical field

[0001] The invention relates to the technical field of ventilation devices for ring network cabinets, in particular to a non-assisted ventilation device for anti-condensation of ring network cabinets. Background technique

[0002] The ring network cabinet, that is, the ring network power supply unit RMU, is an emerging and rapidly developing smart grid power distribution equipment in recent years; the ring network cabinet includes a support seat above the cable trench and a cabinet above the support seat , the cabinet body is connected with the support base, the cable is coiled in the cable trench, and enters the ring network cabinet through the support base.

[0003] When used in winter, the temperature difference between day and night is large. Since the cable trench is in a sealed space, the air in the cable trench is higher than the air in the ring network cabinet and the outside air. The hot air in the cable trench cannot circulate. It can enter the cab...

Claims

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