Blast Valve


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Blast Valve

 

a device for avoiding damage to power plants in case of an explosion of fuel gases, coal dust, or other substances. Blast valves are openings (a window, scuttle, or similar device) in the parts of power plants in which there is a danger of explosion; they are closed by doors or a material such as asbestos canvas that is easily destroyed in case of an explosion. A blast valve with a pipe to draw off gases protects service personnel from burns. Furnace chambers, the gas conduits of steam boilers and furnaces, and apparatus for preparing pulverized coal are equipped with blast valves.

References in periodicals archive ?
It consists of a welded, aluminum frame, two separate servo driven X-Y tables, and two separate blast valve selector heads.
This creates an X-Y grid that the blast valve selector head indexes under.
The blast valve selector head releases a fastener from the specified plate cartridge slot and delivers it to the machine tool point at high speeds using compressed air and fexible feed tubes.
The main components of the blast valve selector head are the escapement cylinders and the trap door.
Development of the online system started with the blast valve selector head.
Contract notice: Preventive and corrective maintenance market for DCA blast valves for the nuclear power plant in Gravelines (59) from 2018 to 2022.
Many are impressed by the original construction, the blasting of the tunnels, how the buildings are constructed inside, and some of the things we show them, such as the survivability and capability we have in the blast valves, the springs, the way we do our air in the Nuclear, Biological and Chemical (NBC) filtering and the huge blast doors.
Thus there must now be considerable concern to ensure that equipment, like blast valves, developed primarily to function in the long-lasting, relatively low pressure environment of a nuclear explosion can perform as effectively when confronted by the short-duration high pressure effects of a conventional explosive.