Cameras can also be “explosion-proof”?
Petroleum, chemical, coal and scientific research and other industrial enterprises or research departments, in the process of experimentation, production, processing, transportation and storage, often may leak and overflow flammable and explosive gases, liquids and dust and fibers, such substances mixed with the air will become explosive hazardous mixtures, around the site has become a different degree of explosive hazardous places. Explosion-proof cameras, is to achieve the application of industrial television in the flammable and explosive field environment and the development of a special camera.
Currently on the market there are three main types of explosion-proof cameras: intrinsically safe, positive pressure type, explosion-proof type.
(1)Intrinsically safe type
“Intrinsically safe” is to limit the energy of the circuit to begin with, the camera through the internal parameters of a reliable control circuit will potentially reduce the spark energy to ignite the gas mixture can be specified below the energy, wire and component surface heating temperature is limited to the specified gas mixture below the ignition temperature.
(2)Positive pressure type
“Positive pressure” explosion-proof type, that is, in the camera to maintain a continuous air or inert gas filled to limit the flammable mixture through the shell into the camera.
(3)explosion-proof type
“Explosion-proof” explosion-proof type, is the camera may ignite explosive gas mixtures of components all enclosed in a shell, the shell can withstand any joint or structural gap through the shell, penetrate into the shell of the internal explosion of combustible mixtures without damage, and will not cause the external by one or more gases or vapor The formation of explosive gases formed by one or more gases or vapors outside the ignition.
Most of the explosion-proof cameras on the market are used explosion-proof or intrinsically safe or a combination of the two to achieve, characterized by the conventional ordinary camera in a metal special housing, the shell has the shell of electrical components generated by the sparks and arcs and shells outside the role of explosive mixture isolation and closure, and can withstand access to the shell of explosive mixtures by the shell of electrical equipment, sparks, arc detonation when generated by the explosion pressure, so that the shell is not destroyed, and at the same time can prevent the shell of explosive generators to the shell of explosive mixtures outside the explosion, will not cause the shell of explosive mixtures outside the combustion and explosion. And this special shell called “explosion-proof shell”, usually called it “shield”.Our ZUOAN's explosion proof camera will provide strong protection for your safety monitoring, allowing you to work with peace of mind even in dangerous environments.
Explosion-proof cameras have been widely used, covering a variety of industries, such as coal mine gas environment; petrochemical industry, coking, refining, chemical, gas production; natural gas collection, transmission; oil rigs; oil depots; power plants, coal dust; coking gas plants; food processing, cotton fiber processing; shipping and ferries and so on.
