Claims
- 1. An inert gas generator for fire suppressing comprising:a gas turbine, which comprises a starter motor, a combustor being connected to a fuel pump burn air compressed in the compressor, and a turbine body installed at an exit of the combustor to generate power through expansion process; an afterburner being connected and installed at an exit of the turbine body, being connected to the compressor by a bleed off line to be provided with a portion of air extracted from the compressor for fuel atomizing and to re-burn gas burned in the combustor, and supplied through the turbine body, and being provided with a flame stabilizer to stabilize flame produced by re-burning of the gas burned in the combustor; a cooling chamber enclosing the afterburner to take combustion heat in the afterburner and to inject water through spray nozzles into gas re-burned in the afterburner to decrease temperature of the re-burned gas; an evaporator being installed at an exit of the cooling chamber for further cooling the re-burned gas which is already been cooled by the cooling chamber and the spray nozzles; an exhaust nozzle for guiding exhaust gas which has been cooled in the evaporator to a fire area; and a controller for controlling the starter motor, the fuel pump, the combustor, and the afterburner.
- 2. The inert gas generator as claimed in claim 1 wherein a water tank, a water pump and a water supply valve are connected to the spray nozzles to regulate feed rate of the cooling water so that a concentration rate of oxygen in final exhaust gas can be controlled.
- 3. The inert gas generator as claimed in claim 1 wherein the evaporator includes coaxial-cylindrical bodies with different diameters to form gas transporting passages, and each of the coaxial-cylindrical bodies is formed with concave and convex parts in a circumferential direction along a longitudinal distance to increase heat transfer surface area in the coaxial-cylindrical bodies.
- 4. The inert gas generator as claimed in claim 3 wherein a drain valve is installed on a bottom of the evaporator for discharging used cooling water.
- 5. The inert gas generator as claimed in claim 1, wherein the exhaust nozzle can be contracted and expanded to adjust exhausting distance of the inert gas.
- 6. The inert gas generator as claimed in claim 1 further comprising;a crane enabling the inert gas generator to rotate and to pitch; a hydraulic cylinder for adjusting spray angle of the inert gas exhausted from the inert gas generator; and a boom assembly that can be expanded and contracted to adjust length of the exhaust nozzle of the inert gas generator.
RELATED APPLICATION
This is a continuation of International Application PCT/KR00/01389, with an international filing date of Nov. 30, 2000, published in English under PCT Article 21(2) and now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (4)
Number |
Date |
Country |
1110184 |
Oct 1995 |
CN |
1724275 |
Apr 1992 |
SU |
WO-9318823 |
Sep 1993 |
WO |
WO 9318832 |
Sep 1993 |
WO |
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/KR00/01389 |
Nov 2000 |
US |
Child |
10/193956 |
|
US |