JPS58158407A - Pulsation combustion unit - Google Patents

Abstract

PURPOSE:To make a superior mixing of fuel with air and provide a complete combustion by a method wherein a discharging pipe connected to a combustion chamber is arranged at a right angle with respect to a transmitting direction of the flame generated in the combustion chamber so as to increases a pressure in the combustion chamber and a suction volume of air is increased. CONSTITUTION:A pulsation combustion unit is operated such that a gas from a gas supplying pipe 10 and an air from an air supplying pipe 11 are fed into the combustion chamber 6 and mixed therein via supplying ports 8..., 9..., gas flapper valve 12 and air flapper valve 13 and then they are ignited and combustioned by a spark plug. During combustion, each of the flap valves 12, 13 is closed by a pressure of combustion gas, and the combustion gas is discharged from the discharging pipe 16. In this case, the discharging pipe 16 is arranged at a right angle with respect to a flame transmitting direction generated in the combustion chamber 6. Thereby, both a flame transmitting direction and a direction of flow of combustion gas are made complicated to increase a pressure in the combustion chamber 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a combustor installed in, for example, a water heater.

[Technical background of the invention and its problems]

/4 Rus combustor fire! An exhaust pipe is connected to the lIa chamber,
It is configured to exhaust exhaust gas generated during combustion. When this Nosrus combustor is used as a heating source for a water heater, the exhaust pipe is bent into a spiral shape and installed at the inner bottom of the hot water storage tank to be used as a heat exchanger.
ing.

However, as shown in Fig. 1, the conventional /f Lus combustor consists of a cylindrical combustion chamber a and an exhaust pipe connected to the combustion chamber a. It is arranged in the direction of propagation of the generated flame (arrow C). This is because, due to its functionality, it is believed that the pulsing combustor will not oscillate unless the exhaust pipe is placed in the direction of flame propagation (arrow @).

However, conventionally, this type of Nollus combustor has poor CO gas emission characteristics (on the order of 0.01 to 0.10), and the reality is that improvement of the exhaust gas characteristics is desired.

[Purpose of the invention]

This invention was made with attention to the above-mentioned circumstances, and its purpose is to increase the pressure inside the combustion chamber and increase the amount of air sucked in so that mixing can be carried out smoothly and completely. The present invention aims to provide a soot burner capable of carrying out combustion.

[Summary of the invention]

The exhaust pipe is provided perpendicular to the propagation direction of the flame that lives inside the combustion chamber, and the interior of the combustion chamber is subjected to a high load and is configured to be compact.

[Embodiments of the invention]

The present invention will be described below based on an embodiment shown in the drawings. FIG. 2 shows a water heater, and 1 is a hot water storage tank. The hot water tank 1 has a water supply port 2 at the bottom and a hot water supply port 3 at the top.
is provided.

Furthermore, a Norls combustor 4, which will be described later, is provided at the inner bottom of the hot water storage tank 1. That is, 5 in FIGS. 3 and 4 is a cylindrical main body, inside which a combustion i
16 are provided.

A valve seat 1 is provided on one end surface of the main body 5, and the valve seat 1 is provided with gas supply holes 1 and air supply holes p. The gas supply holes 8 are connected to the gas supply pipe 1o, and the air supply holes 9 are connected to the air supply pipe 11. Further, inside the combustion 11-, a gas 7 clamp valve 12 facing the gas supply hole 8... and an air valve IJ facing the air supply hole 9 are installed, and these are connected to the valve holder 14fC. Therefore, it is supported so that gas and air are mixed, and the mixed gas is ignited by an ignition f-lag (not shown) to cause explosive combustion. Further, an exhaust expansion pipe IC is provided protruding from the side wall of the main body 5 constituting the combustion gi. This exhaust pipe 16 is located in the direction of propagation of the flame generated during combustion (arrow e
), the tip of which is curved in a spiral shape, and is installed at the inner bottom of the hot water storage tank 1.

Thus, the gas supplied from the gas supply pipe 1o and the air supplied from the air supply pipe 11 are supplied to the combustion chamber C through the gas supply holes 8 and the air supply holes 9, respectively.
supplied within. Therefore, gas and air are mixed, and this mixed gas is ignited! It is ignited by the lag and exploded and burned within the combustion chamber 6. At this time, the inside of the combustion chamber 6 becomes positive pressure, and the gas flow, quantity valve 12 and air 7
3 is occluded. Therefore, the exhaust gas generated in the combustion i1- flows into the exhaust pipe I perpendicular to the direction of flame propagation (arrow C).
It will be exhausted via C.

At the time of combustion, the propagation direction of the flame and the flow direction of the exhaust gas in the combustion chamber σ become complicated, and the pressure in the combustion chamber C increases.The amount of rounded air suction also increases, promoting the mixing of gas and air. It will burn completely.

Here, when comparing the performance of the conventional pulse combustor and that of the present invention, as shown in Fig. 5 and Table 1, the present invention has an effective combustion space of 5.
Assuming 0φX60L, the oscillation frequency is almost the same compared to the first conventional method (11). In addition, when comparing the second conventional method (Q) with similar combustion amount to (4) of the present invention, even assuming an adiabatic change, P' = (v/vl)1AxP-
(80/6o) 1°4×780-1170■MuK<22
In the Nollus combustor of the present invention, the gas and air were mixed well, increasing the reaction temperature and contributing to the pressure increase.

Table 1 [Effects of the Invention] As explained above, in this invention, since the exhaust pipe in the pulse combustor is provided at right angles to the propagation direction of the flame generated in the combustion chamber, the pressure inside the combustion chamber increases and the air intake The amount can be increased. Therefore, the gas and air can be mixed in a perfect manner, and complete combustion can be achieved. Load combustion is also possible, which has the effect of making the combustion chamber more compact. .

[Brief explanation of the drawing]

$1EIII is a schematic diagram of a conventional Nollus combustor,
#I2- is an overall schematic configuration diagram showing an embodiment of the present invention, No. 3g is a front view of the combustor, and FIG. (4)(B)
(C) is a rounding configuration diagram illustrating a performance comparison between the present invention and the conventional method. 6... Combustion chamber, 16... Exhaust pipe. Original agent Patent attorney Takehiko Takehiko Figure 1 Figure 2 Figure 4 Figure 5

Claims (1)

[Claims] A combustion chamber comprising a combustion chamber and an exhaust pipe connected to the combustion chamber, wherein the exhaust pipe is arranged perpendicular to the direction of propagation of flame generated within the combustion chamber. .