Application scope of PXK series positive pressure explosion proof distribution cabinet
1. It is suitable for zone 1 and zone 2 of explosive gas environment;
2. Class IIB, IIC, class IIC explosive;
3. It is suitable for T1 ~ T4 temperature group;
4. It is widely used in oil exploitation, oil refining, chemical, pharmaceutical, military and other dangerous environment, offshore oil platform, wheel oil and other places.
PXK series positive pressure explosion proof distribution cabinet
Explosion proof principle
The explosion-proof principle of positive pressure ventilation explosion-proof cabinet is to use medium isolation ignition source to achieve the purpose of electrical explosion-proof.That is: install all the electrical components of the user in a shell filled with positive pressure clean medium, so that the flammable and explosive mixed gas in the external environment can not contact the electric spark or dangerous temperature produced by the electrical components in normal operation, so as to achieve the purpose of explosion-proof electrical appliances.
Technical parameters of PXK series positive pressure explosion proof distribution cabinet
Alarm cut-off pressure: lower limit alarm cut-off pressure 60Pa, upper limit alarm cut-off pressure 900pa (adjust according to cabinet size)
Inert gas, clean air type
Protective gas temperature: ≤ 40 ℃
Protection grade: IP65 (IP54 for control part)
Product features and structure description of PXK series positive pressure explosion proof distribution cabinet
1. The product adopts the structure of main panel and auxiliary panel. The main panel is a positive pressure chamber, which contains the electrical components required by the user and the necessary pressure detection and sensing system, ventilation and air distribution system, air pressure regulation system, etc.; the secondary panel is equipped with explosion-proof air exchange automatic control system, explosion-proof power automatic switching system, explosion-proof alarm system, explosion-proof pressure display system, inlet and outlet of air source, and the secondary panel of products with self gas supply specificationsIt is also equipped with explosion-proof air supply device;
2. Cabinet type products are processed by numerical control, the main and auxiliary panels are left and right structure, cable trench seat installation, lower incoming line, front door operation, rear door maintenance;
3. Box type products adopt high-quality steel plate welding structure, main and auxiliary plates are upper and lower structures, hanging installation, lower incoming line, front door operation and maintenance;
4. Piano type products are made of high-quality steel plate folded and welded. The main and auxiliary plates are made of money. The rear structure is seat mounted. The lower incoming line, piano type and rear door maintenance are used;
5. Cabinet type and piano type products are equipped with quick door opening device, which is convenient for users to install and repair;
6. Stainless steel material can be used according to user requirements.
1. When ordering, please provide detailed product model according to the meaning of model.
2. The user shall provide electrical system diagram, control principle, brand of built-in components, panel component layout, size and quantity of incoming and outgoing cables.