JPH01155111A - Burner - Google Patents

Abstract

PURPOSE:To curtail operation cost, eliminate restrictions on installation sites, and reduce production cost as well, by forming an ejection section in a gas ejection member so that fuel gas may be ejected in a peripheral direction so as to obtain a rotary force, providing air discharge impellers made in one piece with said gas ejection member, and flame maintenance section on the lower stream side of the gas ejection member. CONSTITUTION:As ejection sections 5 are designed so that fuel gas may be ejected in a peripheral direction of a fuel gas pipe 3, a gas ejection member 4 obtains a rotary force in a peripheral direction of the fuel gas pipe 3 from the ejection energy of fuel gas ejected from the ejection section 5, and starts rotary motion. Since the gas ejection member 4 and air discharge impellers 6 are made in one piece construction, the air discharge impellers 6 carry out rotary motion as well. This construction makes it possible to feed combustion air smoothly into an air blow pipe 2 from an opening 7a on the upper stream side of the air blow pipe 2, and mix the fuel gas and the combustion air to a satisfactory extent in a flame maintenance section 10, then start combustion. More specifically, high temperature combustion gas is generated in the air discharge pipe 2. The generated combustion gas is ejected as a hot air from an opening 7b on the lower stream side of said blow pipe 2, which makes it possible to use the hot air for drying and heating service as well.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a burner device used, for example, for drying or heating.

(Prior art and its problems) As a conventional large capacity burner, there is one shown in FIG. 5, for example. Such a conventional large-capacity burner a is provided with a fuel gas pipe C and a flame port d in the blast pipe, and uses a motor-driven blower e to forcibly send air into the blast pipe to open the flame port d. The fuel gas is combusted in the combustion chamber, and the high-temperature combustion gas generated at this time is blown out through the blast pipe and used.

In this way, the conventional large-capacity burner a uses the blower e to supply combustion air, and the blower e has become an essential component. Therefore, there are problems in that a large amount of electric power is required to operate the blower e, which increases operating costs, and there are restrictions on installation locations due to electrical wiring, etc., and manufacturing costs are also high.

The present invention aims to solve such problems.

(Means for Solving the Problems) The configuration of the present invention will be explained based on FIGS. 1 to 4, which correspond to embodiments.

As shown in FIG. 1, the first burner device 1 of the present invention has a fuel gas pipe 3 installed in a blast pipe 2 that is open on the upstream and downstream sides, and a gas jetting member 4 that can be freely rotated at the tip of the fuel gas pipe 3. The gas jetting member 4 is provided with a jetting portion 5 to inject fuel gas in the circumferential direction to obtain rotational force, and the gas jetting member is integrally provided with an air flow blade 6. A flame stabilizing section 10 is provided on the downstream side of the gas ejecting member.
The configuration includes the following. The burner device 1' of the second invention is
As shown in FIG. 2, in addition to the first invention, the fuel gas pipe 2 is configured to be rotatable, and the fuel gas pipe 2
Air-flowing vanes 6' are provided on the outer periphery of the blade.

(for production) The operation of the present invention will be explained with reference to examples.

As shown in FIG. 1, when fuel gas is supplied into the fuel gas pipe 3 in the direction of arrow A, the fuel gas reaches the gas ejection member 4 provided at the tip of the fuel gas pipe 3 and is ejected from the ejection part 5.

In such jetting, the gas jetting member 4 is provided at the tip of the fuel gas pipe 3 so as to be able to freely rotate in the circumferential direction of the fuel gas pipe 3, and the jetting portion 5 is configured to supply the fuel gas to the fuel gas pipe 3.
Since the fuel gas is configured to be injected in the circumferential direction of the fuel gas pipe 3, the gas ejection member 4 obtains rotational force in the circumferential direction of the fuel gas pipe 3 due to the injection energy of the fuel gas from the ejection part 5, and starts rotating.

When the gas ejection member 4 rotates, since the air flow blade 6 is integrally provided with the gas ejection member 4, the air flow blade 6 also rotates. As shown in the figure, the air flow vane 6 is
When the rotation is in the opposite direction to the injection direction of the fuel gas from the jetting part 5, the air in the blast pipe 2 is directed toward the downstream lower part b of the blast pipe 2, and from the upstream lower part a to the downstream lower part b. Forms an airflow towards. Therefore, the air flow blade 6
By rotating, combustion air can be smoothly sent into the blast pipe 2 from the upstream side lower part a of the blast pipe 2, and the fuel gas and combustion air can be well exchanged in the flame stabilizing section 10. Mix and start combustion.

As a result, high-temperature combustion gas is generated within the blast pipe 2 and is blown out as hot air from the downstream lower part b of the blast pipe 2, which can be used for drying, heating, or the like.

Furthermore, in the burner device 1 of the present invention, the amount of air flowing into the blast pipe 2 from the upstream lower lower a of the blast pipe 2 due to the rotation of the airflow vanes 6 is determined by the rotational speed of the airflow vanes 6. It depends on the speed, the faster the rotation, the more it will be, and the slower the rotation, the less it will be. The rotational speed of the air flow vane 6 depends on the fuel gas ejection pressure in the gas ejection member 4, and increases as the fuel gas ejection pressure increases, and decreases as the fuel gas ejection pressure decreases. Therefore, a desired amount of air can be automatically achieved in accordance with the ejection pressure of the gas ejection member 4. In addition to the above, the burner device 1' shown in Fig. 2 is equipped with blades 6' around the outer periphery of the freely rotatable fuel gas pipe 2, so the compressive force from the blades 6' is applied, increasing the amount of air accordingly. However, high load combustion can be achieved in the flame stabilizing section 10.

In the above configuration, the gas ejection member 4 fits the open end side of the hollow pipe 9 with one end open and the other end closed, for example, inside the tip of the fuel gas pipe 3 via the airtight bearing 8. are provided so as to be able to turn freely in the circumferential direction of the fuel gas pipe 3, and furthermore, an appropriate number of gas ejection members 4 are provided on the outside of the hollow pipe 9.
It may be configured as appropriate, such as by protruding. In FIG. 2, reference numeral 11 indicates a rotary joint.

In addition, the shape, number, etc. of the flow blades 6 can be changed as long as they can flow the air in the blast pipe 2 to the downstream side when rotated in the opposite direction to the injection direction of the fuel gas from the jetting part 5. It is appropriate.

(Effects of the Invention) As described above, the present invention can smoothly supply combustion air without using a blower that consumes a large amount of electricity.
Operating costs can be reduced, and since there is no need for electrical wiring, restrictions on installation locations can also be eliminated.

Furthermore, since the desired air volume according to the combustion meter can be automatically achieved, there is no need to provide special means for controlling the air volume, which simplifies the design and allows the burner itself to be small and simple. This has the effect of reducing manufacturing costs.

[Brief explanation of the drawing]

1 and 2 are detailed explanatory views of the present invention, FIGS. 3 and 4 are enlarged views of essential parts, and FIG. 5 is a schematic vertical sectional view of a conventional example. Code 1.1'...Burner device, 2...Blow pipe, 3.
...Fuel gas pipe, 4...Gas ejection member, 5...
Ejection part, 6.6'... Air flow blade, 7a... Upstream opening of blast pipe 2, 7b... Downstream opening of blast pipe 2, 8... Airtight bearing, 9.・Hollow pipe, 10...
・Flame holding part, 11... Rotary valve, A... Fuel gas supply direction. Figure 1 Procedural amendment 28 Name of the invention Burner device 3, person making the amendment Relationship to the case Patent applicant address 5-20 Kaigan-chome, Minato-ku, Tokyo Representative Watanabe
Hiroshi 4, Agent 101 m (294) 7341-
2j"'----'7T: Name (7110) Patent attorney Sanse Akira 1ji ・、1! 5. Date of amendment order shi°----
1.1 Voluntary amendment 6. Subject of amendment 7. Details of amendment (1) All drawings will be amended to those attached to this document. (2) "Fuel gas pipe 2" written on page 3, lines 18 and 19 of the specification letter, and page 6, line 1, respectively, will be corrected to "fuel gas pipe 3." (3) “Flowing vane 6” described on page 6, line 13 of the Meiji M.
(4) "Figures 3 and 4" written on page 7, lines 9-10 of the specification letter [Figure 3 is the same as Figure 1] Side view and Figure 4
I will correct it. (5) "Rotary valve J" written on page 7, line 17 of the specification is corrected to "rotary joint." 8. List of attached documents

Claims (2)

[Claims] (1) A fuel gas pipe is installed in a blast pipe with openings on the upstream and downstream sides, a gas jetting member is rotatably provided at the tip of the fuel gas pipe, and fuel gas is injected into the gas jetting member in the circumferential direction, The ejection part is configured to obtain rotational force, the gas ejection member is provided with an air flow blade integrally therewith, and a flame stabilizing part is provided on the downstream side of the gas ejection member. Burner device. (2) A fuel gas pipe is installed in the blast pipe that opens on the upstream and downstream sides, and this fuel gas pipe is rotatable, and air flow blades are provided on the outer periphery, and a gas jet is provided at the tip of the fuel gas pipe. The member is rotatably provided, and the gas ejecting member has an ejecting portion configured to eject fuel gas in the circumferential direction to obtain rotational force, and the gas ejecting member is integrally provided with air flow blades. A burner device comprising: a flame stabilizing section provided downstream of the gas ejecting member.