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US 9,498,787 B2Granted
Fire protection apparatus, systems and methods for addressing a fire with a mist
AssigneeTyco Fire & Security GmbH
InventorsMarcus Brian Mayhall Fenton, James Oliver French, Zachary L. Magnone
Life of this patent
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Abstract
Fire protection apparatus, systems, and methods for addressing a fire with a mist are provided. More particularly, the invention provides systems and their method of design which provide a water mist to address and preferably suppress a fire. The invention further provides systems and methods for total flooding volume protection of a space to address a fire, preferably control, suppress, and more preferably extinguish a fire. The invention further provides atomizing devices for use in such systems and methods.
Claims44
An atomizer for fire protection using a first fluid and a second fluid, the atomizer comprising:
- a base,
- a cover coupled to the base and
- an internal fluid defining assembly disposed along a longitudinal axis between the base and the cover, the base at a proximal end of the atomizer including a first inlet for receipt of the first fluid and a second inlet for receipt of the second fluid, and the cover defining an outlet at a distal end of the atomizer for discharging the first and second fluid, the fluid defining assembly keeping the first and second fluids isolated from one another from the proximal to the distal end of the atomizer, the assembly including an outer funnel having an inner surface and an outer surface, the outer surface of the outer funnel defining a first fluid flow passageway in communication with the first inlet, the first fluid passage having a divergent-convergent internal geometry and the outer surface defining a continuous curved profile along the longitudinal axis that converges to a first fluid outlet, the first fluid passage the inner surface of the outer funnel defining a second passageway in communication with the second inlet, the assembly including an inner plug member disposed within the passageway and having an outer surface spaced from the inner surface of the outer funnel to define at least a portion of a second fluid flow passageway therebetween extending axially to the outlet, the second fluid flow passageway diverging in the proximal to distal direction to define a discharge orifice for the second fluid in communication with the outlet.
A mist generating apparatus having a longitudinal axis, the apparatus comprising:
- a first fluid passage having a first fluid inlet and a first fluid outlet;
- the first fluid passage having a divergent-convergent internal geometry and an outer surface defining a continuous curved profile along the longitudinal axis that converges to the first fluid outlet;
- and
- a second fluid passage having a second fluid inlet and a second fluid outlet;
- wherein the first fluid passage surrounds the second fluid passage, and the first and second fluid outlets are oriented relative to one another such that they have an angle of incidence between 5 and 30 degrees;
- and
- the second fluid passage having a throat portion located between the second fluid inlet and the second fluid outlet, the throat portion having a smaller cross sectional area than that of either the second fluid inlet or second fluid outlet.
4 more elements
A mist generating apparatus having a longitudinal axis, the apparatus comprising:
- a first fluid passage having a first fluid inlet and a first fluid outlet;
- the first fluid passage having a divergent-convergent internal geometry and an outer surface defining a continuous curved profile along, the longitudinal axis that converges to the first fluid outlet, and
- a second fluid passage having a second fluid inlet and a second fluid outlet;
- wherein the first fluid passage surrounds the second fluid passage, and the first and second fluid outlets are oriented relative to one another such that they have an angle of incidence of less than 90 degrees;
- and
- the second fluid passage includes a throat portion located between the second fluid inlet and the second fluid outlet, the throat portion having a smaller cross sectional area than that of either the second fluid inlet or second fluid outlet such that the area ratio between the throat portion and the second fluid outlet is between 2:3 and 1:4.
3 more elements
A mist generating device comprising:
- a first fluid passage having a first fluid inlet and a first fluid outlet disposed about a longitudinal axis of the device;
- the first fluid passage having a divergent-convergent internal geometry and an outer surface defining a continuous curved profile along the longitudinal axis that converges to the first fluid outlet, and a second fluid passage having a second fluid inlet and a second fluid outlet through which a second fluid passes, the second fluid passage disposed about the longitudinal axis concentric with the first fluid passage, the second fluid passage defining an equivalent angle of expansion of between 1 and 40 degrees;
- wherein the second fluid passage includes a throat portion located between the second fluid inlet and the second fluid outlet, the throat portion having a smaller cross sectional area than that of either the second fluid inlet or second fluid outlet such that the area ratio between the throat portion and the second fluid outlet is between 5:7 and 2:11;
- and wherein the ratio of the cross sectional area of the first fluid outlet to the second fluid outlet is between 10:3 and 1:12.
1 more element
Dependencies are inferred from the claim text.