JPS5888511A - Burner - Google Patents

Abstract

PURPOSE:To render the air-hole combustion stable and to make the exhaust gas clean, by closing the clearance formed between cross pins and through-holes by attaching a closure ring to either one of an inner combustion barrel or an outer combustion barrel in the manner that it is held in tight contact with the barrel. CONSTITUTION:An inner combustion barrel 3 and an outer combustion barrel 4 are both formed with through-holes through which two cross pins 12 are extended for positioning the two barrels 3, 4 coaxially with each other. Thus, the inner combustion barrel 3, outer combustion barrel 4 and an outer case 12' are positioned coaxially with each other by the cross pins 12. Here, in order to compensate dimensional errors caused in assembling the barrels 3, 4 and the outer case 12', the through-holes formed in the inner combustion barrel 3 are shaped in an elongated form. Further, a closure ring 13 is attached to the outside of the inner combustion barrel 3 so as to close the clearance formed between the cross pins 12 and the elongated holes formed in the barrel 3 for extending the cross pins 12 therethrough. Since, with such an arrangement, the clearance around the cross pins 12 is closed by the closure ring 13, air-hole combustion is not disturbed, so that combustion is rendered stable and the exhaust gas can be made clean.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion device used for household heating, cooking, etc., and aims to stabilize the combustion state and improve exhaust gas characteristics.

Traditionally, burners used in stoves, etc.

Air is allowed to flow in through the holes provided in the outer flame tube, and the flame is held in place through the 6 holes for pore combustion. Therefore, combustion noise is low and the configuration of the combustion section is simple. Since 6-hole combustion is greatly affected by fuel concentration, flow, temperature, air amount, etc., the inner and outer flame tubes, which have multiple holes, are held coaxially by cross pins. However, since multiple cross pins are used to maintain coaxiality, the holes that pass through the inner flame tube and the outer flame tube are larger than the cross pin diameter to absorb dimensional errors.
It becomes a long hole. As a result, the air flowing in through this gap caused pore combustion to stagnate, yellow flames to rise, and lift misfires in the surrounding pores, making combustion unstable and producing an extremely large amount of smoke and coke in the exhaust gas.

The present invention is capable of stabilizing pore combustion and improving exhaust gas characteristics by providing a close-fitting plug on at least one of the inner flame tube and the outer flame tube and closing the gap between the cross pin and the through hole. It is.

An embodiment of the present invention will be described below with reference to the drawings.

A cylindrical lamp wick 1 has its lower part submerged in fuel 2, and its upper part exposed to a primary combustion chamber 6 composed of an inner flame tube 3 and an outer flame tube 4, and is mounted so that it can move up and down.

A secondary combustion chamber 8 is formed above the secondary combustion chamber 6 by the glass cylinder 6, the porous incandescent body 7, and the upper part of the inner flame cylinder 3.

A large number of holes 1o provided in the upper part of the core guide tube 9 and a large number of holes 11 provided in the inner flame tube 3 and the outer flame tube 4 serve as inflow paths for combustion air.
and a gap between the glass tube 6 and the incandescent body 7.

A hole is provided in the inner flame tube 3 and the outer flame tube 4 through which two cross bins 12 which hold the inner flame tube 3 and the outer flame tube 4 are held coaxially. Outer flame tube 4. The outer cylinder 12' is constructed coaxially. In addition, the inner flame tube 3.
4 flame cylinders. In order to absorb dimensional errors during assembly of the outer cylinder 13,
The through hole of the inner flame tube 3 is a long hole. Further, a closing ring 13 is attached that closes the gap between the long hole of the inner flame tube 3 through which the cross pin 12 passes and the Talos pin 12, and is in close contact with the outside of the inner flame tube 3.

Next, the operation will be explained.

The fuel 2 is sucked up to the tip of the wick 1 by capillary action. When the lamp wick 1, which has been sufficiently supplied with the fuel 2, is ignited, the tip of the lamp wick 1 ignites, generates a flame circle, and starts combustion. High-temperature gas from combustion enters the primary combustion chamber5. Secondary combustion chamber 8
A thermal draft is created by passing through the hole 10. Air flows into the primary combustion chamber 6-9 and the secondary combustion chamber 8 through the holes 11 and the porous holes in the incandescent body 7. The fuel gas evaporated from the wick 1,
Air flowing in from the hole 10° hole 11 causes the hole 10. Hole 1
It burns in one part and performs stomatal combustion. By this combustion, the incandescent body 7 receives heat and becomes red-hot, and radiates the heat through the glass cylinder 6. The fuel gas after pore combustion is red hot body 7
It mixes with air entering through the pores, forms a secondary flame 14, and completes combustion. Combustion in the holes 10.degree. 11 is greatly influenced by the fuel gas concentration and the temperature of the incoming air and each.

The combustion speed is set at a certain value as the upper limit, and becomes slower when the fuel concentration becomes thicker or lighter than that, and the flame lifts and misfires, so pore combustion no longer occurs. number.

The pattern is set to correspond to the fuel gas concentration. The through hole of the inner flame cylinder 3 glue b spin 12 is closed by the closing ring 13
As a result, air does not flow into the combustion chamber 6 because the gap between the through hole and the cross pin 12 is closed. For this reason, the concentration of fuel around and above the through-hole of the cross pin 12 is reduced (a large amount of air flows in through the through-hole of the cross pin 12 and combustion progresses, so the concentration of fuel around and above the through-hole of the cross pin 12 is extremely reduced. (because there is nothing to do) it is stable and does not change. Therefore, the stomatal combustion is stabilized, and the generation of Co and the like due to the stagnation of the secondary flame 14 due to the instability of the stomatal combustion does not occur.

Furthermore, when the closing ring 13 is made to maintain elasticity and is brought into pressure contact with the inner flame cylinder 3, the gap between the closing ring 13 and the inner flame cylinder 3 is eliminated, and air is more completely prevented from flowing in through the through-hole of the cross bin 12. Pressure may be applied to the entire closure ring 13, but a spring configuration may be used so that only the through-hole portion of the cross pin 12 presses the inner flame tube 3. And inner flame tube 3
Since the closing ring 13 is in contact with the ring while maintaining its elasticity, it can always be in close contact even when there are changes such as thermal expansion.

According to the present invention as described above, the gap in the hole through which the cross pin passes can be closed by the closing ring. Therefore, the air flowing in through the gaps between the holes does not cause pore combustion to occur, resulting in a stable combustion state and good exhaust gas characteristics.

[Brief explanation of the drawing]

The figure is a sectional view showing one embodiment of the present invention. 3... Inner flame tube, 4... Outer flame tube, 6...
...-Secondary combustion chamber, 8...Secondary combustion chamber, 12
...Cross bin, 13...Occupation ring.

Claims (2)

[Claims] (1) Holes for passing a plurality of cross pins are provided in the inner flame tube and the outer flame tube, which are provided substantially coaxially, and the gaps between the holes and the cross pins are closed, and the holes in the inner flame tube and the outer flame tube are closed. Both sides have an occlusion ring that is close to one side.
Combustion device. (2) The combustion device according to claim 1, wherein the closing ring is made elastic and is pressed into contact with the inner flame tube or the outer flame tube.