Шэньхай Взрывозащищенный
Определение:
Взрывозащищенные шкафы избыточного давления широко используются в химической промышленности как вид взрывозащищенного электрооборудования.. Эти устройства специально обработаны для безопасной работы в легковоспламеняющихся и взрывоопасных средах., с взрывозащищенным исполнением, антистатический, и коррозионностойкие свойства. Their explosion-proof mechanism employs a medium to isolate the ignition source, thereby ensuring electrical safety. They can be fitted with a variety of standard detection instruments, analyzers, дисплеи, monitors, touch screens, high-power frequency converters, and general electrical components, offering flexibility in the installation of electrical elements as per user needs.
Структура:
Structurally, these cabinets comprise a main body, автоматическая система управления, an air distribution system, alarm systems, и система распределения электроэнергии. Divided into primary and secondary chambers, the primary chamber houses the electrical components required by the user, controlled via a panel. The secondary chamber contains an automatic control system to regulate and operate the cabinet. Made from high-quality stainless or carbon steel with sealing treatment, they create a positively pressurized airtight environment. Users can install various detectors, analyzers, дисплеи, трансформаторы, устройства плавного пуска, преобразователи частоты, PLCs, кнопки, переключатели, touch screens, and general electrical components as needed, without any restrictions.
Принцип:
The principle of operation involves the cabinet, under the control of its automatic system, admitting protective gas to create a micro положительное давление environment in the primary chamber. This prevents combustible and harmful gases from entering, ensuring the safe operation of standard instruments and electrical components housed within. The system enables functions like automatic ventilation, gas replenishment, high-pressure alarms (or exhaust), low-pressure alarms, low-voltage interlocking, and ventilation interlocking. The cabinet also features a low-voltage interlock function that automatically cuts off the power supply to the primary chamber if the pressure drops below the specified value (50Па).
As a specialized explosion-proof device for hazardous areas, explosion-proof positive pressure cabinets serve as a reassurance, ensuring the safe operation of business activities while providing peace of mind to employees working in such dangerous environments.