JPS5950004B2 - vaporizing burner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vaporizing burner in which fuel is evaporated from a main combustion state at the time of ignition by its combustion flame, and thereafter shifts to vaporization combustion.

Previously, the present applicant installed a rotary vaporizer in the combustion cylinder that atomizes and disperses fuel and generates hot gas by mixing the evaporation of the fuel and forced air, and when igniting, the present applicant creates a mist inside the combustion cylinder. We have developed a vaporization burner that burns the vaporized fuel raw and then uses the combustion flame to heat the rotary vaporizer to evaporate and burn the fuel. Through its implementation, we have improved combustion efficiency and achieved complete combustion. It has been shown to have considerable effects, such as being able to improve the

By the way, in the above-mentioned vaporizing burner, when the burner is started, the fuel that has been atomized and sprayed into the combustion cylinder is ignited by the ignition plug, so the distribution of the atomized fuel within the combustion cylinder may be uneven. As well as causing ignition failure, the flame did not circulate well after ignition, making it difficult to stabilize raw combustion, which resulted in drawbacks such as incomplete combustion during main combustion, which delayed the transition to vaporization combustion.

In view of the above, the present invention is provided with wind blowing blades that generate a swirling wind at the base of the combustion cylinder on the open side of the rotary vaporizer facing the base of the combustion cylinder, so that the blades are installed at the base of the combustion cylinder at the same time as the burner is started. By creating a swirling wind, the distribution of the atomized fuel sprayed from the rotary vaporizer is quickly evened out to ensure ignition, or it is possible that the flame circulation after ignition is improved and live combustion is achieved. The present invention provides a vaporizing burner that can stabilize the combustion cylinder, thereby promoting the transition to vaporization combustion, and constantly generate swirling wind at the base of the combustion cylinder even after the transition to vaporization combustion, thereby preventing overheating and burnout at the base of the combustion cylinder. DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to a preferred embodiment shown in the accompanying drawings.

Reference numeral 1 denotes a combustion tube with one end open and the base end closed. The combustion tube 1 is composed of a combustion disk 2 and an outer tube 3 that covers the outer periphery of the combustion disk 2. The combustion disk 2 and the outer tube 3 are open. A gas chamber 4 is formed in these tubes, which are sealed on the sides.

A large number of flame holes 5 are bored on the circumferential surface of the combustion disk 2.

Reference numeral 6 denotes a rotary vaporizer consisting of a cylindrical body with one end closed and the other end open. It is fixed so as to cover the rotary shaft 7, and the base end side of the rotary vaporizer 60 faces the inner base of the combustion cylinder 1 and communicates with the gas chamber 4 via the hot gas passage 8.

Further, a blow chamber 10 is connected to the base end surface of the combustion tube 1 via a heat insulating material 9, and a blow tube 11 is deeply inserted into the rotary vaporizer 6 from the blow chamber 10.

Although the blower tube 11 is integrally formed in a protruding manner with the outer tube 3 of the combustion tube 1, it may be formed separately from the outer tube 3 and joined.

A fuel splashing end 12 that extends outward is formed at the open base end of the rotary vaporizer 6, and a gas mixing cylinder 13 having a fuel splashing end 13' extending outward is attached to the outside. There is a fuel spraying gap 1 between the fuel scattering end 12 of the rotary vaporizer 6 and the fuel scattering end 13' of the vaporized gas mixing tube 13.
4 is formed.

Reference numeral 15 denotes a rotation gap between the gas mixing cylinder 13 and the protrusion of the mixed gas passage 8.

Reference numeral 16 denotes a fuel oil diffuser, and the fuel oil diffuser 16 is fixed to the rotary shaft 7 by a nut 18 together with the rotary vaporizer 6 via a mounting member 17 at one end of the vaporizer 6, and has a surface on its circumferential surface. The tips of the oil supply pipes 19 are placed close to each other and face each other.

20 is a spark plug. The gas mixing tube 13 fixed to the open side of the rotary vaporizer 6 is equipped with blowing vanes 21, 21, . . . radially outwardly. The wind blades 21, 21... are attached to the flat part 22 facing the rotation gap 15 of the gas mixing cylinder 13.
This is accomplished by gluing an annular disk 23 on which wind raising blades 21, 21, . . . are attached.

A fume chamber is provided at the inner base end of the combustion tube 1 with a rotational gap 15, and the fume chamber is communicated with the blowing chamber 10, and a fume gas is provided between the fume chamber and the inner base end surface of the combustion tube 1. A gap may also be formed.

Next, the operation of the present invention will be explained.

Now, when starting the burner, the rotary vaporizer 6 is rotated at high speed, forced air is blown into the air blowing chamber 10, and fuel is supplied from the fuel supply pipe 19, and the fuel is transferred to the fuel diffuser rotating at high speed. It is diffused into the rotary vaporizer 6 by centrifugal action on the circumferential surface of the rotary vaporizer 6, and further inside the rotary vaporizer 6, the blower tube 1
It mixes with the forced air blown from 1 and becomes fine particles, and is sprayed into the combustion tube 1 through the fuel spray gap 14, so when it is ignited by the spark plug 20, live combustion occurs in the combustion tube 1. arise.

When raw combustion occurs in the combustion tube 1, the rotary vaporizer 6 is rapidly heated to a high temperature by the combustion flame, so that the fuel sprayed into the rotary vaporizer 6 evaporates and becomes vaporized gas. Furthermore, it mixes with the forced air blown from the blower tube 11 to become hot gas, and the mixed gas passes through the mixed gas passage 8 and is stored in the gas chamber 4 .

The mixed gas stored in the gas chamber 4 is ejected at a constant pressure into the combustion tube 1 from the numerous flame holes 5 of the combustion plate 2, and vaporization combustion occurs within the combustion tube 1.

Once transition to vaporization combustion occurs, the rotary vaporizer 6 continues to be heated to a high temperature at all times, so vaporization combustion continues in the combustion tube 1.

By the way, when the rotary vaporizer 6 rotates at high speed due to the start of the burner, the blowing vanes 21, 21, .

Therefore, the atomized fuel sprayed from the fuel spray gap 14 of the rotary vaporizer 6 is quickly and evenly dispersed along with the swirling wind, so that ignition by the ignition plug 20 is reliably performed and After ignition, the raw combustion flame similarly spreads rapidly in the combustion tube 1 along with the swirling wind, the raw combustion is quickly stabilized, and the transition to vaporization combustion is promoted.

In addition, even after the transition to vaporization combustion, the base of the combustion tube 1 is subjected to a cooling effect by the swirling wind that continues to be generated at the inner base of the combustion tube 1 by the air blowing vanes 21, 21.
This overheating and burnout is prevented.

In addition, in the case where a fumarole chamber is provided at the inner base of the combustion tube 1, in conjunction with the action of the above-mentioned blowing vanes 21, 21... The cooling effect of the inner base of the combustion tube 1 is further strengthened by the jet flow, and since the jet flow becomes combustion secondary air within the combustion tube 1, an even better vaporization combustion state is maintained.

In short, the present invention provides a rotary vaporizer 6 that atomizes and disperses fuel in a combustion tube 1 with one end open and the base end closed, and generates humid gas by evaporating and vaporizing the fuel and mixing it with forced air. In the combustion cylinder 1, on the open side of the rotary vaporizer 6 facing the inner base of the combustion cylinder 1, wind blowing vanes 21, 21, etc., which generate a swirling wind at the inner base of the combustion cylinder 1, are installed. Therefore, the distribution of the atomized fuel sprayed from the rotary vaporizer 6 is quickly and evenly distributed to ensure ignition, and the circulation of the flame after ignition is improved to stabilize raw combustion, which leads to vaporization combustion. In addition, even after the transition to vaporization combustion, a swirling wind is constantly generated at the base of the combustion tube 1, and overheating and burnout of the base of the combustion tube 1 can be prevented.

[Brief explanation of the drawing]

The drawings show an embodiment of the vaporizing burner according to the present invention, in which FIG. 1 is a partially cutaway vertical side view, and FIG. 2 is a front view of the main parts. 1... Combustion tube, 6... Rotating vaporizer, 21... Brewing blade.

Claims (1)

[Claims] 1 A rotary vaporizer installed in a combustion cylinder with one end open and the base end closed, which atomizes and disperses fuel and generates hot gas by evaporating the fuel and mixing it with forced air. A vaporizing burner characterized in that air blowing vanes for generating swirling wind at the internal base of the combustion cylinder are attached to the open side of the rotary vaporizer facing the internal base of the combustion cylinder.