JPS5895106A - Pulsation burner - Google Patents

Abstract

PURPOSE:To always obtain the best burnig condition in a pulsation burner by enabling to change the combustion rate, while the gas/air ratio is kept at the same value, by slidably contacting a control plate, having gas rate controlling and air rate controlling ports, rotatably with the base plate of a burner. CONSTITUTION:In the normal condition, the gas rate controlling ports 21 are communicated with gas intake ports 6, facing opposed to correctly each other, while the air rate controlling ports 22 are communicated with air intake ports 7, facing opposed correctly to each other, as well. An ignition plug 13 is ignited when the gas and the combustion air are fed into a combustion chamber 4, passing through the above-mentioned ports. A control plate 15 is turned by a knob 25, in order to decrease the combustion rate. That is, the gas intake ports 6 and the air intake ports 7 can be closed partially at the same rate, even if the control plate 15 is slightly turned. Accordingly, the gas/air ratio is not changed, but combustion takes place in such a state that each quantity of gas and air to be fed into the combustion chamber 4 is respectively decreased. In such a manner, the best burning condition can be continued in the titled burner, even though the combustion rate is controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a Kunoya Rusu combustor equipped with a combustion amount control structure.

Technical Background of the Invention and Problems Therein In recent years, there has been an extremely high awareness of energy saving not only in the industrial world but also in home appliances, and demands for energy saving and high efficiency are becoming stronger for home heat source equipment as well. In the past, discussions were focused on the thermal efficiency of individual units such as hot water heaters, bathtubs, and water heaters, but now the overall efficiency of the system (including electricity bills, etc.) is being questioned. Originally, it was used to obtain heat below 100℃ for domestic hot water supply and space heating.
It would be unreasonable to directly utilize the combustion reaction at a temperature of several thousand degrees Celsius, but since this has been studied separately in "gas engine utilization systems," we will discuss here the combustion reaction heat OI [direct utilization]. Targeting higher system efficiency.

Items to improve the efficiency of the thermal equipment listed above include (1) increased efficiency of the combustor itself (exhaust gas efficiency), (2) increased heat exchange efficiency (hot water efficiency), (3) waste heat recovery and utilization, (4) Possible causes include a reduction in heat radiation loss. However, if (1) is increased, (3) becomes unnecessary, and (2) is also improved by increasing the thermal conductivity on the combustion gas side, so (1) in particular
Efforts have been made to satisfy the following.

As a high-efficiency combustor, a pulse combustor is known as an application of the pulse combustor, and the hot water gailer and 7 Arness using this combustor are soon being manufactured and sold in foreign countries. (
For example, Switzerland, Tarrus, Reno, USA, and JP 55-1028044A, JP @ 52-
(Bulletin No. 44455) This type of equipment uses low-air pulsating combustion without using a fan, so it can be expected to have a hot water efficiency of around 95%. Further, since it can burn any fuel such as gas, oil or coal, it is considered to have a wide range of applications as a fuel switching burner or a high efficiency fuel burner.

By the way, the amount of combustion is determined by determining the dimensions of the combustion chamber, the tail pipe, and the air and gas supply ports.For this reason, adjusting the amount of combustion depends on stopping the combustion action. I have started and am going. However, with this type of control, a starting fan is used each time ignition occurs, so the advantage is that a starting fan is not required during combustion.
Failure to take advantage of this will lead to a decrease in combustion efficiency.

OBJECTS OF THE INVENTION The present invention aims to provide a pulse combustor that can vary the amount of combustion at the same air ratio and can be controlled to always obtain the best combustion state.

SUMMARY OF THE INVENTION The present invention provides a control plate that rotatably contacts a burner pace plate that is equipped with a gas introduction hole and an air introduction hole that communicate with a combustion chamber, and that is equipped with a gas amount adjustment hole and an air amount adjustment hole. The amount of gas and the amount of air are controlled at the same ratio according to the amount of rotation of the plate.

Embodiment of the Invention An embodiment of the present invention will be described based on the drawings. FIG. 1 shows a combustor, in which reference numeral 1 denotes a housing, the interior of which is divided into a mixing chamber S and a combustion chamber 4 by a choke plate 2. The end face of the mixing chamber 1 consists of a burner pace plate 5, and as shown in FIG. concentric circles 8
Air introduction holes 7... are bored on the upper surface of the air inlet 3. Moreover, the gas introduction hole σ and the air introduction hole 7 are located at positions facing each other, and the positioning line a is marked at a predetermined angle θ from the center point 0.
Open so that -a becomes a tangent. Further, as shown in FIG. 1, a mounting shaft 8 is bored inside the mixing chamber 3 of the burner pace plate 5, and a knob presser 9 is provided at the end thereof. A plurality of through holes 10... are bored in this pulp presser jlKd.

Further, a pulp grate 11 is fitted into the mounting shaft 8 so as to be freely displaceable, and the gas introduction holes 6 and the air introduction holes 1 and 1 are connected to each other.
and can be opened and closed at the same time. Above aperture) plate 2
The aperture opening has an area larger than the total O flow path area of the gas introduction holes 6 and the air introduction holes R, and smaller than the cross-sectional area of the combustion chamber 4. 12 opens. A spark plug 11 projects into the combustion chamber 4 . 14 is a tail pipe which is a heat exchanger and communicates with the combustion chamber 4. On the other hand, a control plate 15 is provided on the outer surface side of the burner pace plate 5. That is,
- Dimensions - A screw hole 16 is bored at the center point 0 of the base plate 5, and a pivot screw 1s is screwed into the screw hole 16 through a mounting hole 11 opened in the control plate 15. Control board! 5 and the head of the pivot screw 18, the control plate 15 can freely rotate while slidingly contacting the burner pace plate 5 using the pivot screw 18 as a fulcrum. supported. A sealing O-ring 20 is provided on the a4-napase plate sliding surface of the control plate 15, so that the mutual sliding surfaces can be reliably sealed no matter where the control plates 15 are located. . Furthermore, the control board 15 has the gas introduction holes 6 and 6.
A gas amount adjustment hole 21 with the same area as the air introduction hole 1 is provided at the same position as the air intake hole 1, and an air amount adjustment hole 22 with the same area as the air introduction hole 1 is provided.

Therefore, depending on the position of the control plate 15, the gas amount - the nodal hole 2
1... is the gas introduction hole 6..., and the air amount adjustment hole 2
2 face the air introduction holes 1, respectively. On the end surface side of the control board 15, there are a gas supply pipe 23 for supplying gas to the gas amount adjustment holes 21, and a gas supply pipe 23 for supplying combustion air to the air amount adjustment hole 22 via a starting fan (not shown). An air supply pipe 24 is provided. This air supply pipe 24
A fusing unit (not shown) is connected to each of the tail pipes 14. Reference numeral 25 is a handle provided on the side of the control plate 15 to urge it to rotate.When the control plate 1j is rotated, both the gas supply pipe 23 and the air supply pipe 24 are rotated. There is no problem.

Next, the operation of the above embodiment will be explained.

Normally, the gas amount adjustment hole 21 and the gas introduction hole C...
- are correctly opposed and communicated, and the air amount adjustment holes 22... are correctly opposed and communicated with the air introduction holes 7.... The ignition plug 13 ignites the gas and the combustion air sent into the combustion chamber 4 through these. The mixed gas undergoes explosive combustion and is led to the tail pipe 14, where it undergoes heat exchange and is then discharged to the muffler. Further, as the mixed gas explodes and burns, the pressure in the mixing chamber 3 becomes positive], and the valve seat 11 completely closes the gas introduction holes 1, . . . and the air introduction holes 8, . After explosive combustion, when the combustion exhaust gas is discharged to the muffler via the tail pipe 14t, the pressures in the mixing chamber 3 and the combustion chamber 4 become negative, and the valve seat 11 is displaced to introduce gas and air.

When this mixed gas flows into the combustion chamber 4, it ignites from the high temperature of the inner wall of the combustion chamber 4, causing explosive combustion. This cycle is repeated thereafter.

In this state, the amount of combustion is the highest, and in order to reduce combustion by 1 kt, it is only necessary to rotate the control plate 15 by holding the handle 25. In other words, if the control plate 15 is rotated even slightly, as shown in FIG. Gas introduction hole 6... and air introduction hole 1.
...and partially closed at the same rate. Therefore, the ratio of gas and air does not change, and the combustion operation is performed with the supply amounts of each reduced. Even if the combustion amount is controlled, the best combustion state can be maintained. As shown in FIG. 3, the opening area of the hole is approximately directly proportional to the amount of combustion.

In the above embodiment, the control plate 15 is provided with a handle 25 so that the control plate 15 can be rotated manually. Alternatively, a dial may be provided and controlled by rotating a dial connected thereto.

Effects of the Invention According to the present invention, the combustion effect can be continuously controlled, unlike the conventional method, since the combustion amount is varied. and,
Since the combustion amount is always varied at the same air ratio, the best combustion condition can be obtained and combustion efficiency can be improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal sectional view of a pulse combustor, FIG. 2 is a front view of the main parts, and FIG. 3 is a combustion characteristic diagram. 4... Combustion chamber, 6... Gas introduction hole, 7... Air introduction hole, S-... Burner pace plate, 21... Gas amount adjustment hole, 22-. Air amount adjustment hole, 15.・・Control board, a・・
・Positioning line. Figure 1 Figure 2 Figure 3 Dark row shape of 4L -

Claims (2)

[Claims] (1) A burner pace plate having a gas introduction hole for introducing gas into a combustor that performs nozzle combustion and an air introduction hole for introducing combustion air; A pulse combustor comprising a control plate having a hole, a gas amount adjustment hole that can be delayed, and a control plate that has an air amount adjustment hole that can communicate with an air introduction hole. (2) Both the gas introduction hole and the air introduction hole are circular, and are opened so that the tangent line thereof passes through the center point of the burner pace plate, and the control plate has the center point of the burner pace plate as the center of rotation. The Nofrus combustor according to claim 1, wherein t% of mold is produced.