LV13900B

LV13900B - System of automibile fire extinguisher

Info

Publication number: LV13900B
Application number: LVP-09-03A
Authority: LV
Inventors: Ojārs Krūmiņš
Original assignee: Rīgas Tehniskā Universitāte
Priority date: 2009-01-07
Filing date: 2009-01-07
Publication date: 2009-08-20
Also published as: LV13900A

Abstract

The invention relates to safety technology, in particular to transportation sector. Its goal is to design a system to be capable to minimize risk of fire in case of accident or extinguish if appeared. Goal is achieved so, a vehicle is equipped with nozzles placed next to exhaust hot parts and connected to carbon dioxide bottle with controllable valve. Valve is operated by a sensor sensing collision, roll of the vehicle, too high temperature in engine compartment, or manually by driver. Exhausted carbon dioxide gas cool all hot surfaces reducing fire appearance probability or extinguishing it if already appeared.

Description

Transporta līdzekļa ugunsdrošības sistēmaVehicle fire protection system

Izgudrojums attiecas uz drošības tehniku, konkrētāk-uz transporta nozari.The invention relates to safety engineering, more particularly to the transport industry.

Ir zināmas transporta līdzekļa, piemēram, automobiļa, ugunsdzēsības sistēmas, kas iedarbināmas automātiski, kolīdz motortelpā izceļas ugunsgrēks [1], vai arī jebkurāThere are known fire-extinguishing systems for vehicles, such as cars, which are triggered automatically as soon as a fire occurs in the engine compartment [1], or

V V vietā transporta līdzeklī[2J. Šādas sistēmas iedarbināmas arī manuāli. So sistēmu galvenais trūkums ir to iedarbošanās ja ugunsgrēks jau ir sācies un to efektivitāte ne vienmēr ir pietiekama lai apdzēstu liesmu.Instead of V in the vehicle [2J. Such systems may also be manually actuated. The main disadvantage of these systems is their effect when the fire has already started and their effectiveness is not always sufficient to extinguish the flame.

Par prototipu izvēlēta sistēma [1], kurā motortelpā uzstāda ugunsdzēsības iekārtu, kas spēj automātiski iedarboties ugunsgrēka gadījumā. Šīs sistēmas trūkums ir tās iedarbošanās pēc ugunsgrēka izcelšanās un tā nespēj novērst materiālo zaudējumu rašanos. .A system [1] has been chosen as a prototype in which a fire-fighting system capable of automatically triggering a fire is installed in the engine compartment. The disadvantage of this system is its ability to act after a fire occurs and it is incapable of preventing material damage. .

Izgudrojuma mērķis ir radīt tādu sistēmu, kas spētu samazināt ugunsgrēka rašanās iespēju vai ari apdzēst uguni, ja tāda ir parādījusies.The object of the invention is to provide a system capable of reducing the likelihood of a fire occurring or extinguishing a fire, if any.

Mērķi sasniedz šādi. Tā kā ir zināms, ka ugunsgrēka iemesls motortelpā ir degoša materiāla saskaršanās ar sakarsušu priekšmetu - parasti, izplūdes kolektoru un izpūtēju, tad gar karstajiem objektiem novieto vienu vai vairākas sprauslas, kuras no balona apgādā ar ogļskābo gāzi. Balona ventili iedarbina signāli no sadursmes sensora, kas sniedz arī signālu par gaisa spilvena iedarbināšanu. Ventili var aprīkot ari ar temperatūras sensoru, kas neatrodas tiešā karsto objektu tuvumā un slēdzi manuālai atvēršanai. Tādējādi, ja sadursmes rezultātā ir bojāts degvielas vai eļļas vads un tā nokļūst uz izplūdes kolektora vai izpūtēja, aizdegšanās nenotiek, jo sistēma savlaicīgi ir veikusi karsto virsmu atdzesēšanu līdz drošai temperatūrai.The objective is achieved by: Since the cause of the fire in the engine compartment is known to be the contact of a combustible material with a hot object - usually the exhaust manifold and the exhaust pipe - one or more nozzles supplied with carbon dioxide from the cylinder are placed along the hot objects. The balloon valve is actuated by signals from the collision sensor, which also provides an airbag actuation signal. The valve can also be equipped with a temperature sensor that is not in close proximity to hot objects and a switch for manual opening. Thus, if the fuel or oil line is damaged as a result of a collision and reaches the exhaust manifold or muffler, no ignition occurs as the system has cooled hot surfaces to a safe temperature in due time.

Zīm. 1. attēlota izgudrojuma shēma. Automobiļa dzinējs 1 komplektēts ar izplūdes kolektoru un izpūtēju 2 aprīkots ar ogļskābās gāzes uguns dzēšanas balonu 4, kuru noslēdz vadāms ventilis 3. Ventilis ir savienots ar izplūdes sprauslām 5, kuras novietotas tā, lai pēc iespējas efektīvāk dzesētu karsto objektu. Ventili vada ar signālu no sadursmes sensora 6, apgāšanās sensora 7, temperatūras sensora 8, manuālās iedarbināšanas slēdža 9.Fig. 1 is a schematic diagram of the invention. The car engine 1 is equipped with an exhaust manifold and exhaust pipe 2 equipped with a carbon dioxide fire extinguishing cylinder 4 which is closed by a controlled valve 3. The valve is connected to the exhaust nozzles 5 arranged to cool the hot object as efficiently as possible. The valves are controlled by a signal from collision sensor 6, rollover sensor 7, temperature sensor 8, manual start switch 9.

Sistēma darbojas šādi. Bīstamas sadursmes gadījumā nostrādā sensors un atver ventili. Ogļskābā gāze no balona caur sprauslām izplūst tiešā karsto objektu tuvumā un strauji izplešoties atdzesē tos. Ja motortelpā temperatūra paceļas virs pieļaujamās, tad nostrādā temperatūras sensors un ogļskābā gāze izplūstot motortelpā slapē uguni un aizkavē degšanu. Ja automobiļa vadītājs konstatē aizdegšanos, taču automātiskās sistēmas nav iedarbojušās, tam ir iespēja manuāli atvērt vārstu un slāpēt sākušos degšanu.The system works as follows. In the event of a dangerous collision, the sensor is triggered and the valve is opened. Carbon dioxide flows out of the cylinder through the nozzles in the immediate vicinity of hot objects and cools as it expands rapidly. If the temperature in the engine compartment rises above the allowable temperature, the temperature sensor will be triggered and carbon dioxide escaping into the engine compartment will wet the fire and prevent combustion. If the driver detects a fire but the automatic systems have not been triggered, he has the option of manually opening the valve and suppressing the burning.

Izmantotā literatūra:References:

l.http://v3.espacenet.com/publicationDetails/biblio?KC=A&date=20080820&NR=1012 44322A&DB=EPODOC&locale=en EP&CC=CN&FT=D, Automatic fire extinguisher in car engine cabin, Publication number: CN101244322 (A) [prototips]l.http: //v3.espacenet.com/publicationDetails/biblio? KC = A & date = 20080820 & NR = 1012 44322A & DB = EPODOC & locale = en EP & CC = CN & FT = D, Automatic fire extinguisher in car engine cabin, Publication number: CN101244322 (A) [ prototype]

2.2.

http.7/v3.espacenet.com/publicationDetails/^,hiblio?KC=A&date⁼⁼20030114&NR-200300 04189A&DB=EPODOC&locale=en EP&CC=KR&FT=D, Automatic operating system of automobile fire extinguisher, Publication number: KR20030004189 (A)http.7 / v3.espacenet.com / publicationDetails / ^, hiblio? KC = A & date ⁼⁼ 20030114 & NR-200300 04189A & DB = EPODOC & locale = en EP & CC = KR & FT = D, Automatic Operating System of Automobile Fire Extinguisher, Publication Number: KR20030004189 (A)

Claims

Claim

A vehicle, such as a car, has a fire protection system containing a carbon dioxide cylinder, a controlled valve and nozzles, in that it cools the exhaust manifold and exhaust pipe after an accident before being exposed to a combustible substance, thus preventing a fire from occurring, or extinguish the flame, if any.