US 5,099,976 A · Fire extinguishing apparatus for compressors

Abstract

A fire extinguishing apparatus is connected to the safety valve on an oil flooded rotary compressor to receive the contents expelled by the compressor due to internal combustion in the compressor. The contents are conducted to the fire extinguishing apparatus, which disperses them in a tank holding a quantity of non-combustible liquid sufficient to cool them. The fire extinguishing apparatus has a tank for holding non-combustible liquid, a perforated plate to disperse the burning oil and gases throughout the non-combustible liquid, an opening to allow the escape of excess pressure from the tank, and a spring loaded lid to prevent evaporation of the non-combustible liquid. A pipe connects the fire extinguishing apparatus to a safety valve and the pipe has temperature and pressure switches on its surface which shut down the compressor when the temperature and/or pressure in the pipe exceed preset limits.

Claims13

Dependent claims

An apparatus for extinguishing an oil-flooded rotary compressor fire comprising,

a tank for holding a non-combustible liquid,
said tank having an upper portion and a lower portion,
a valve on an oil flooded rotary compressor having a preset limit at which said valve will dispel the oil and gases contained in said compressor from an outlet portion of said valve,
said outlet portion of said valve being connected to a pipe,
a portion of said pipe having an opening which opens into said tank adjacent said lower portion of said tank,
said pipe having means to receive said oil and gases from said compressor through said outlet portion of said valve when said valve dispels said oil and gases due to an increase in pressure in said compressor beyond said preset pressure limits,
said tank having means to receive said oil and gases from said pipe and to percolate said oil and gases through said non-combustible liquid in said tank to extinguish and cool said oil and gases from said oil flooded rotary compressor through said pipe,
said upper portion of said tank having an opening to release excess pressure in said tank.

5 more elements

Dependencies are inferred from the claim text.

Fire extinguishing apparatus for compressors

Life of this patent

Fire extinguishing apparatus for compressors

Life of this patent

Abstract

Claims13