JPS6262247B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pot-type oil combustor that can extinguish the fire instantly after extinguishing operation, and does not generate a bad odor when extinguishing the fire.

A pot-type oil combustor supplies oil directly into the pot and performs some of the vaporization, mixing, and combustion of the oil, so continuous and stable combustion is possible during steady combustion, but during fire extinguishing operations, oil It was difficult to stop the vaporization, mixing, and combustion of the gas all at once, which took a long time to extinguish and caused a foul odor.

This invention eliminates the above-mentioned drawbacks; 1 is a pot with a large number of small holes 1' in the side wall; 2 is an air passage through which combustion air is supplied by the ventilation force of a blower or chimney (not shown); A pot 1 is installed in an air passage 2, and combustion air in the air passage 2 is sent into the pot 1 through a small hole 1'. Reference numeral 3 designates an oil supply pipe that supplies oil into the pot 1, and 4 an air pipe that supplies air from a blower or the like. Ru. 5 is oil supply pipe 3 and air pipe 4
The tapered part of the oil supply pipe on the pot side from the connection part with the oil supply nozzle is formed. The oil supply nozzle 5 projects into the pot 1 and supplies oil directly into the pot 1.

In the embodiment, the oil feed nozzle 5 is installed to penetrate through the wall of the air passage 2 and the side wall of the pot 1, and at least the pot 1 and the oil feed nozzle 5 are not fixed to each other but have a gap 6 between them. The air in the air passage 2 can flow from 6 into the pot 1. Reference numeral 7 designates a mixing plate installed inside the pot 1, 8 a combustion chamber above the pot 1, and an incandescent plate 9 is installed as required.

Oil is supplied to the oil supply pipe 3 via an oil amount regulator and a solenoid valve, and also by an electromagnetic pump, while combustion air is sent from a small hole 1' in the pot 1 by a blower or the like. Therefore, the oil vaporizes, mixes with air, and undergoes primary combustion in pot 1, and combustion continues.

By the way, in this invention, the oil supply pipe 3 and the air pipe 4 are connected, and the oil supply pipe 3 is tapered to form the oil supply nozzle 5, so that when air and oil are mixed and supplied into the pot 1. Since the inner diameter of the oil feed nozzle 5 is narrow, the flow velocity inside the oil feed nozzle 5 becomes very high, and the oil mixed with air becomes fine particles and is ejected into the pot 1.

For this reason, petroleum was dispersed all around the bottom of pot 1 and instantly turned into vaporized gas, which was used for mixing with air and combustion. Therefore, the bottom of Pot 1 is always dry and there is no longer any chance of oil sticking to it in its liquid state, so if you shut off the oil supply by closing the solenoid valve during fire extinguishing operations, you can extinguish the fire instantly. Summer.

On the other hand, the cause of the long extinguishing time of conventional pot-type oil combustors is the phenomenon in which the oil remaining in the oil supply pipe evaporates and burns and becomes embers, but in this invention, the oil supply nozzle 5 that receives combustion heat is thin, The total amount of heat transmitted to the oil feed nozzle 5 is small, and the amount of heat transmitted to the oil feed nozzle 5 is small.
The interior is cooled because the same amount of oil and air flows as before, and in the end, it doesn't reach a high enough temperature to support combustion, so embers no longer occur at all.
In particular, the fact that the inner diameter of the oil feed nozzle 5 is small and the amount of oil adhering to the nozzle wall is small also promotes this effect, and the fire is instantly burned out and extinguished.

By the way, in a pot-type combustor, only a small portion of the combustion takes place inside the pot, and complete combustion occurs on the top of the pot and in the combustion chamber located above the pot. An abnormal situation may also occur in which the main combustion occurs inside the pot. In this invention, even under such conditions, the oil is always completely combusted, and the oil is extinguished instantly during extinguishing operation.The oil feed nozzle 5 is installed so as to pass through the side wall of the pot 1, and there is a gap 6 between the pot 1 and the oil feed nozzle 5. It's forcing me.

That is, in the above combustion state, the bottom surface and lower side wall of the pot 1 become abnormally high in temperature, but since the pot 1 and the oil supply nozzle 5 are not fixed by welding or the like, there is no direct heat transfer, and combustion occurs from the gap 6. Since the air circulates and cools the outer surface of the oil feed nozzle 5, the temperature of the oil feed nozzle 5 can be maintained at the same temperature as before. As a result, fine particles of oil boil in the hot oil delivery nozzle, temporarily stopping the flow of oil and making the combustion state unstable, and embers may continue to form after extinguishing operations. The troubles I encountered no longer occur.

As described above, in this invention, the bottom of the pot is always dry, and the oil supply nozzle immediately stops the supply of oil after extinguishing the fire, making it possible to extinguish the fire instantaneously and eliminate the odor caused by the extinguishing. Since no unburned gas exists in the pot, no unburned gas is generated, and an indoor exhaust type pot-type oil combustor that is extremely easy to handle has been put into practical use.

[Brief explanation of the drawing]

The drawing is a sectional view of this invention. 1... Pot, 2... Air path, 3... Oil supply pipe, 4... Air pipe, 5... Oil supply nozzle, 6...
…gap.

Claims (1)

[Scope of Claims] 1. A pot 1 having a large number of small holes 1' in its side wall is installed in an air passage 2 through which combustion air is supplied, and an oil supply pipe 3 and an air pipe 4 supply oil into the pot 1. and supply oil and air into the pot 1 all at once, and the oil supply pipe 3 on the side of the pot 1 is made thinner than the connection part between the oil supply pipe 3 and the air pipe 4 to form an oil supply nozzle 5. A pot-type oil combustor characterized in that the tip of the oil feeding nozzle 5 projects into the pot 1. 2. A patent claim in which the oil feed nozzle 5 is installed to penetrate through the wall of the air passage 2 and the side wall of the pot 1, and a gap 6 is interposed between the pot 1 and the oil feed nozzle 5, and air circulation is possible through the gap 6. The pot-type oil combustor described in item 1.