Solusyon sa Pagsakop ng Presyon para sa Gas-Insulated Ring Main Units
Ⅰ. Konteksto sa Problemahan
Isip usa ka pangunahon nga komponente sa urban nga sistema sa pagdistribute sa kuryente, ang mga ring main units (RMUs) gigamit gamay sa mga residential area, factories, ug public buildings tungod sa ilang compact nga struktura, mababang gasto, ug mataas nga reliability. Apan, ang mga internal equipment failures o arc faults mahimo mogenerate og high-temperature, high-pressure gas, sumala molibog sa cabinet ug magpanganak og panganak sa personal ug equipment. Ang tradisyonal nga sealed designs naghulagway sa insulation integrity, apan dili makapugos sa rapid release sa sudden pressure surges. Usa ka active pressure relief mechanism ang kinahanglanan para makabalanse ang safety ug sealing requirements.
Ⅱ. Innovative Pressure Relief Design
Ang utility model niini nagpakilala sa triple-stage cascade pressure relief structure, nagtumong sa synergistic collaboration tali sa gas chamber, cable chamber, ug dedicated pressure relief chamber aron mas precise ang pressure release sa panahon sa faults:
1. Core Structure
- Relief Chamber Layout: Nalocated sa baba sa gas ug cable chambers, physically isolated pinaagi sa perforated baffles.
- Wax-Sealed Vent Holes: Ang baffle tali sa gas chamber ug relief chamber (first baffle) ug ang baffle tali sa cable chamber ug relief chamber (second baffle) adunay 9–18 wax-sealed vent holes.
- Redundant Venting Channels: Ang right side sa relief chamber adunay 3–6 through-holes na temporary sealed pinaagi sa plugs, nagserbi isip secondary venting paths.
2. Smart Trigger Mechanism
- Normal Operation: Ang high-melting-point sealing wax (resistant sa routine equipment temperatures) sigurado sa airtightness.
- Fault Conditions: Ang arc-induced high-temperature gas (> wax melting point) melto ang wax, allowing ang gas mopasok sa relief chamber para sa first-stage pressure reduction.
- Pressure Persistence: Kon ang pressure magpabilin taas, ang gas mobuang sa plugs gikan sa through-holes, venting directly outside aron preveni ang cabinet explosion.
3. Eco-Friendliness & Maintenance Optimization
- Recyclable Wax Film: Ang walls sa relief chamber adunay film nga may pre-cut openings sa tanang vent holes/plugs. Ang melted wax madikit sa film post-fault aron easy cleanup ug recycling.
- Green Insulation Medium: Ang gas chamber gipuno sa air/nitrogen para sigurado sa zero-pollution venting, compliant sa environmental standards.
Ⅲ. Technical Advantages
|
Function |
Implementation Method |
Safety Benefit |
|
Precise Pressure Relief |
Wax MP matches fault temperature |
Responds within seconds; prevents pressure buildup |
|
Dual Relief Pathways |
Main (sealed holes) + Backup (through-holes) |
Phased pressure release; avoids single-point failure |
|
Zero Pollution |
Air/Nitrogen insulation medium |
Nontoxic, harmless vented gas |
|
Ease of Maintenance |
Film-adsorbed wax residue |
Lowers cleanup costs; enhances sustainability |
Ⅳ. Application Value
Ang three-tiered design niini—physical isolation, smart wax-triggered release, ug redundant venting—resolves ang conflict tali sa RMU airtightness ug safety:
- Reduces Equipment Damage: Suppresses shock pressure aron protektahan ang cabinet integrity.
- Ensures Personnel Safety: Rapid venting preveni ang explosions ug controls hazards.
- Lowers Lifecycle Costs: Recyclable wax ug durable design minimize maintenance.
Ideal for: Urban grid ring main units, compact substations, ug high-load industrial power distribution systems nga may stringent space/safety requirements.
Ⅴ. Conclusion
Featuring a simple mechanical structure ug intelligent materials (high-MP wax), ang pressure relief system niini delivera usa ka leap in safety performance para sa RMUs. Combining reliability, eco-friendliness, ug cost-efficiency, it stands as the ideal safety solution para sa next-generation smart power distribution equipment.
