JPS6048410A - Pulse burner - Google Patents

Abstract

PURPOSE:To enable stable ignition of fuel, by a method wherein, after a given time has elapsed after ignition is made in a small combustion amount by the use of a slow ignition device, a flame is detected to increase a combustion amount to a high value, and simultaneously an ignition plug and a blower device are brought to a stop. CONSTITUTION:The air 14 for combustion is fed from a blower 10 to a combustion chamber 1 through an air valve 4 and an air passage 3. Thereafter, spark is discharged from an igniter 5, and simultaneously a slow ignition valve 9 is opened. A fuel 13 is fed through a nozzle 11 after passing through the slow ignition valve 9 and a gas valve 12 to form a flame 15. After a given time has elapsed after ignition, a frame rod 6 is actuated. When combustion is ascertained, in response to a signal from the frame rod, the slow ignition valve 9 is actuated and is fully opened. A combustion amount is increased to a high value, and simultaneously the igniter is brought to an OFF-state through a transformer 7. Thereafter, a flame is continuously burnt. Series of such motions are effected by means of signals from a controller 8.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to industrial and commercial applications 4. ly < i, l, heating devices such as household water heaters and wind blowers are used.
It concerns the improvement of Guruskhana.

Conventional structure and its problems A conventional pulse burner consists of a combustion chamber, a tail pipe, an air valve, and a fuel valve. Combustion J11 air is supplied to the combustion chamber by a blower. Fuel is also supplied to the combustion chamber. The fuel and air are mixed to form J1 mixture.

When this air-fuel mixture is ignited with an igniter, it explodes (;+'6 L
, the air valve, and the combustion valve are closed. The combustion gas is discharged from the tail pipe, and the pressure inside the combustion chamber becomes negative.Then, the air valve and the combustion valve 1r1. are opened, and air and fuel are supplied to the combustion chamber. Mix with gas and ignite again.

The combustion cycle is repeated and pulse combustion is achieved.

- If there is more than 1 of i, the pulse combustion will continue even if the blower and igniter are turned off.
) J'r (LIJ: LA: < :5, at this time, the flame j-1 throat is often used to detect the combustion state.

Bass combustion is noisy. 1t2. In the beginning of a fire, slow, slow explosions often occur, producing loud noises and loud noises. .

-7・Wa,) Ignition delay at the time of ignition in the engine burner (
/-Yoko) To prevent ignition noise, a slow ignition device was often used. To prevent this slow ignition, 1. Ignition noise damping IL is installed.

When applying this slow ignition device to a pulse bar, the following problems occurred. In the pulse bar, the turn is small. Therefore, if the combustion amount is reduced by 1-2 and ignited by slow ignition, the combustion condition becomes unstable and tends to occur. However, the amount of combustion increases immediately after auxiliary ignition) According to the misfire -1-11 is 1. There are many d.

OBJECTS OF THE INVENTION It is an object of the present invention to reduce the ignition noise by applying the device to a pulse burner and achieving low-pressure ignition.

Configuration of Ignition 1 The present invention uses a slow ignition device, and after ignition with a small combustion amount, detects the flame after a certain ITt'1 period and fires the flame.
M' and 17, l'1111! This is a pulse combustor that shuts off the spark plug and air blower internally.

Explanation of the embodiment Fuel 1, 11 is supplied to the combustion chamber 1. Thereafter, a spark is discharged from the igniter 5, and at the same time, the slow ignition valve 9 is opened.Fuel 13
A flame 16 is formed in the combustion chamber, which is sent to the combustion chamber from the nozzle 11 through the slow ignition valve 9 and the gas valve 12. At this time, if the slow ignition valve is set to half-open state 5 and set to n:b and the combustion amount is about 3A and mixed ignition is performed, ignition 1j9. It's extremely quiet. After a certain period of ignition, the Lu-LO Rad 6 is activated. Once combustion is confirmed,
In response to the -7 flame rod signal, the slow ignition valve 9 is fully opened to the 1-1-movement 17, producing a large amount of combustion and turning off the igniter via the trumpet.

The f4-: The flame burns in a sequence. These series of moving angles V:l', :1Ili control3. ; Executed by the signal from 8.

After one person arrived, combustion stopped after the flame rod was activated.-31
Otsuno 1, frame 1 signal stopped j7, controller 8
A signal to close the slow ignition valve is sent from the ignition valve. fuel or stop I
1. The blower starts immediately. Then, I put out 2 to 4 of the two tail pipes.

The operation of the arene rod 6 is constant ignition 11.5 i=
-, 'If one is asked for the following reasons. Pulse Burnashi 1. If the turn burn rate/o is small and the fuel husk is emitted with a small combustion h:, it will produce an unsteady combustion level at the time of ignition, so if you activate the 2-ram rotor immediately after ignition, a misfire will be detected. It is. Therefore, for stable combustion, 4'/''
After this, the flame rod was activated, and the ignition started with a small amount of combustion.
4111 +l; Not changing IJ is Im after combustion -',
There are many cases of unreliability, and if a misfire occurs when switching to a large combustion mode, it is likely that the combustion will occur.

In addition, for example, slow ignition...lube g - use C
，? The opening of Lube 9 is: small combustion, 4j and large combustion ifi, i (i!J), using two electromagnetic pieces in parallel, while f, , and the other one is turned off for large combustion amount 'F'l' X- to produce the same effect.

As described in detail, the present invention is based on the following: After ignition with a small flame, the flame rod ignites the flame rod after a certain period of time, causing the flame rod to ignite. There is no 1,1/this, from small combustion amount to large combustion amount without misfire.
1 many 7. I can do lJj.

[Brief explanation of drawings]

Figure 01 shows a new drawing of a pulse combustor according to one embodiment of this research. 1.--・・・Mushroom, Chamber, 2..Tailpipe, 4
...Air valve, 5...Igniter, 6...Flame rod, r-...Ignition transformer, 8...Controller, 9...V-lighting pulp, 10 ···Blower.

Claims (2)

[Claims] (1) a combustion chamber, a schiff/gas pipe connected to the combustion chamber, means for supplying fuel to the combustion chamber, supplying air to the combustion chamber, and detecting flame in the combustion chamber; comprising a detector and a spark plug disposed within the combustion chamber,
A small combustion furnace, ignited through the ignition switch in [11], controlling the fuel supply means with the output of the flame detector, and causing large combustion; 1:. Good luck! : A typical pulse combustor. (2) Use the output of the flame detector to supply air! The pulse combustor according to claim 1, wherein the pulse combustor is configured to shut off a combustion engine.