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What is an explosion-proof positive pressure cabinet?
Explosion-proof positive pressure cabinet is an explosion-proof electrical appliances widely used in the chemical industry, explosion-proof positive pressure cabinet is a kind of electrical equipment used in flammable and explosive environments, after a special process in the flammable and explosive environments can be anti-explosive, anti-static, corrosion-resistant. The explosion-proof principle is the use of media to isolate the ignition source of explosion-proof measures to achieve the purpose of explosion-proof electrical appliances, but also according to user requirements to install a variety of ordinary detection instrumentation, analytical instrumentation, display instrumentation, monitors, microcomputer touch-screen, high-power inverters, as well as ordinary electrical components, the user of the internal installation of electrical components is basically unrestricted.
Explosion-proof positive-pressure cabinet structure
Explosion-proof positive-pressure cabinet is composed of cabinet, automatic control system, gas distribution system, alarm system, alarm system and power distribution system. The cabinet can be divided into positive pressure chamber and sub-chamber, in the positive pressure chamber assembled user demand for electrical components, the user can control panel control the entire electrical system work. In the sub-chamber is equipped with automatic control system, used to regulate and control the explosion-proof positive pressure cabinet to complete a series of work. Through the excellent stainless steel plate or carbon steel bending welding, sealing treatment, so as to form a positive pressure airtight environment.
What electrical components can be installed in the explosion-proof positive pressure cabinet?
Explosion-proof positive-pressure cabinet can be installed according to user requirements of a variety of ordinary detection instrumentation, analytical instrumentation, display instrumentation, transformers, soft starters, inverters, PLC, a variety of buttons, switches, microcomputer touch screen and ordinary electrical components, the user needs to be installed on the electrical components are completely unrestricted. Explosion-proof positive pressure cabinet explosion-proof joint parameters should be consistent with the relevant provisions.
Explosion-proof positive pressure cabinet design points
The first point to consider is the shell of the problem, explosion-proof positive pressure cabinet using the shell needs to have strong mechanical strength and airtightness
The second point to consider is that the air inlet and outlet of our product accessories as well as the air barrier door need to be reasonable layout of the use of the
The third point, generally when we carry out the design, the general design of the cabinet, the explosion-proof cabinet should be completely limited to the user needs to install electrical components. Generally, we have to ventilate and compensate for these two to design
The fourth point, if our products exist heating elements or high-power components need to dissipate heat, you can use the ventilation of the positive pressure cabinet explosion-proof structure will be more suitable.
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