বিস্ফোরণ-প্রুফ ঘেরের ফ্লেমপ্রুফ এবং ইতিবাচক চাপের প্রকারের মধ্যে পার্থক্য কী

বিস্ফোরণ-প্রমাণ ঘের, বিশেষ করে বিতরণ অ্যাপ্লিকেশনে প্রচলিত, বিভিন্ন ব্যাপক ধরনের আসা. তাদের মধ্যে ড, ফ্লেমপ্রুফ এবং ইতিবাচক চাপ বিস্ফোরণ-প্রমাণ ঘের সবচেয়ে সাধারণ, প্রয়োজনীয় বিস্তৃত পরিসর পূরণ. অনেক ব্যবহারকারী প্রায়ই এই দুই ধরনের মধ্যে পার্থক্য সম্পর্কে আশ্চর্য. Let’s delve into their distinct features.

বিস্ফোরণ সুরক্ষা নীতি:

Flameproof Explosion-Proof Enclosure:

True to its name, this type isolates বিস্ফোরক events. It houses electrical components that might generate sparks, আর্কস, or high temperatures, effectively separating the device’s internal space from the external environment. The enclosure is robust enough to withstand internal explosions and the resulting pressures without damage. উপরন্তু, the gaps in its structure serve to cool any flames, slowing down their spread or halting the acceleration process, thus preventing external explosive engagement.

Positive Pressure Explosion-Proof Enclosure:

This type works by injecting fresh air or inert gas at a certain pressure into the enclosure, creating a barrier that stops external combustible gases from entering. This process effectively prevents internal ignition sources from triggering explosions.

Usage Methods:

ফ্লেমপ্রুফ protection relies on the casing’s physical structure and requires standard debugging for operation.

Positive pressure models necessitate an air source, such as instrument air or air compressors. Connecting the air supply to the enclosure and subsequent debugging readies it for normal operation.

Functionalities:

Flameproof enclosures provide essential functions like distribution, নিয়ন্ত্রণ, পাওয়ার সাপ্লাই, distant local operation, ওভারলোড, শর্ট সার্কিট, এবং ফুটো সুরক্ষা, and light control. যাহোক, তাদের সীমাবদ্ধতা আছে, যেমন অপর্যাপ্ত তাপ অপচয়. Overheating in high-power components can trigger electrical protection. উপরন্তু, issues with explosion-proof touchscreens are unresolved, and installing protective doors for touchscreens may compromise explosion-proof efficacy.
বিপরীতে, positive pressure types not only share some functions with flameproof models but also offer advanced features like chain-type alarms, automatic re-inflation, চাপ উপশম, and remote monitoring. They boast high electrical automation and can cater to explosion-proof needs across various industries. Their superior cooling abilities can manage the heat of large power frequency converters. Unlike flameproof models, they allow direct installation of touchscreens on the enclosures.

Price Point:

The cost difference between flameproof and positive pressure models primarily stems from their material sizes, with positive pressure types generally being smaller.

Through this detailed comparison, users can now discern the unique aspects of both flameproof and positive pressure explosion-proof enclosures, enabling informed choices based on specific needs.