Antifreeze formulation and sprinkler systems comprising improved antifreezes
AssigneeTyco Fire Products LP
InventorsHayden Erik Hernandez, Jeremy Tyler Cogswell, Sean E. Cutting, Jacob Gelinas
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Abstract
Antifreezes are provided for deployment in wet sprinkler systems located in cold environments. The antifreezes allow for the wet sprinkler system to be actuated under temperatures below 32° F. Wet sprinklers, sprinkler systems, methods of providing for the control, suppression and/or extinguishment of a fire that occur in a cold environment, and methods of preventing wet sprinklers from freezing also are provided. The sprinklers, sprinkler systems and methods can be used in residential, commercial and storage settings.
Claims58
An antifreeze to be deployed in a wet sprinkler system, wherein the antifreeze is produced from ingredients which comprise
- water having a conductivity of no more than 500 μSiemens/cm2 (μS/cm2) at a temperature of 68 to 79° F. (20 to 26° C.);
- glycerol;
- and
- at least 0.1 wt. % of one or more organic acid salts, each salt having one or more carboxylic acid groups, wherein glycerol is present in a volume percentage of 35% to 48%;
- and
- wherein the antifreeze has a conductivity of no more than 2500 μS/cm2 at a temperature of 68 to 79° F. (20 to 26° C.);
- and the antifreeze contains no more than 1.5 wt. % of the one or more organic acid salts.
An antifreeze having a conductivity of no more than about 2,500 μSiemens/cm2 (μS/cm2) at a temperature of 68 to 79° F. (20 to 26° C.);
- wherein the antifreeze comprises:
- up to 63 vol. % water;
- 35 to 48 vol. % glycerol;
- and
- at least 0.1 wt. % of one or more organic acid salts, which comprises a sodium and/or potassium salt of a compound having one or more carboxylic acid groups;
- wherein the antifreeze contains no more than 1.5 wt. % of the one or more organic acid salts.
The wet sprinkler system claim of 41, wherein the antifreeze has a conductivity of no more than about 1,500 μSiemens/cm2 (μS/cm2) at a temperature of 68 to 79° F.
An antifreeze having a pH of about 6 to 8;
- wherein the antifreeze comprises:
- up to about 59 vol. % water;
- at least about 41 vol. % glycerol;
- and
- at least 0.1 wt. % of one or more organic acid salts, each salt having one or more carboxylic acid groups, and optionally, one or more buffers,
- wherein the antifreeze has a conductivity of no more than about 2,500 μSiemens/cm2 (μS/cm2) at a temperature of 68 to 79° F. (20 to 26° C.);
- and a freezing point below −15° F. (−26° C.);
- and
- the antifreeze contains no more than 1.5 wt. % of the one or more organic acid salts.
Dependencies are inferred from the claim text.