Water and Steam Curtains

These do not pose a recognized static hazard if the curtain device and all equipment that could be electrically charged during operation is bonded and grounded [45,46]. 

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Water, steam, and air curtains and water sprays are primarily effective in dispersing and/or diluting vapors with air to reduce the severity of effects of a hazardous vapor release. In some cases, vapors can be partially knocked down or absorbed after release. ... 

Active mitigation systems, which consist of detection, decision and action (e.g. gas detector, which triggers measures like emergency shutdown, segmentation, water or steam/ammonia curtains, or scrubber systems). 

A similar logic is applicable to the control of explosions involving gas or vapour, but other measures, e.g. dispersion by steam or containment by water curtains, may be applicable to vapour clouds in the open air. Containment or diversion of a blast (e.g. by blast walls) and reducing its effect by appropriate spacing of equipment, buildings etc. are also applicable. 

Napier, D.H., Generation of Static Electricity in Steam Screens and Water Curtains, Paper P, Institution of Chemical Engineers Symposium Series No. 39, London, 1974. 

This chapter covers the use of fluid curtains of water, steam, and air to mitigate the effects of a release. 

As the name implies, this technique involves the formation of a falling curtain of powder into which is directed a jet of steam, water spray or mist to wet and agglomerate the product. Small, cluster-type agglomerators are formed. 

Emergency depressurizing/deinventory Reduce inventory Water spray/deluge Blast-resistant construction Improved training and procedures Spill detectors Steam or air curtains Fireproofing... 

Keep em dry. Close the window when its raining and don t subject curtains and drapes to direct steam, such as from a radiator or humidifier. Water stains can become permanent, as can mildew stains. 

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