JPS6242249Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vaporization line burner that vaporizes and burns liquid fuel, and in particular aims to make effective use of the heater vaporization section, making it possible to completely and uniformly fuel the entire burner. This invention relates to a vaporizing line burner.

In general, a vaporizing line burner that vaporizes and burns liquid fuel such as kerosene is equipped with a heater vaporizing section 2 at the bottom of a housing 1, a burner plate 3 at the top, and a central section, as shown in FIG. A plate 4 is installed horizontally on the housing 1 to divide the inside of the housing 1 into two upper and lower chambers. As shown in FIG. 2, an air port 5 is bored in the center of the plate 4, and a baffle plate 6 is provided in contact with the opening edge of the air port 5 and extends downward. By horizontally inserting the plate 4 into the center of the housing 1, a vaporization chamber 7 is formed between the plate 4 and the heater vaporization section 2, and a chamber 8 is formed between the plate 4 and the burner plate 3. has been done. Further, a blower 9 is provided on the outside of the housing 1 to communicate with the vaporization chamber 7 to send air, and a nozzle 10 and a heater electrode 11 for supplying kerosene are provided on the lower side of the upstream side of the duct. is being used.

Since the conventional vaporizing line burner is configured as described above, the kerosene sprayed from the nozzle 10 mixes with the air blown from the blower 9 while coming into contact with the heater vaporizing section 2 that is ignited and heated by the heater electrode 11. It is vaporized, passes through the vaporization chamber 7, reaches the center, enters the chamber 8 from the lower part of the baffle plate 6 through the air port 5, reaches the burner plate 4, and produces a combustion flame 12.
becomes.

However, in this type of conventional vaporizing line burner, the plate 4 having the baffle plate 6, the heater vaporizing section 2, and the heater electrode 11 are made separately, and the vaporizing chamber 7 is opened by inserting the plate 4. Therefore, the length of the baffle plate 6 is short, and the downstream side of the heater vaporizing section 2 is not effectively utilized. Therefore, the particles of the vaporized fuel are large, and the mixture flows to the right in the diagram within the chamber 8, resulting in poor balance between the left and right sides of the linear combustion flame, which causes lift and back-up phenomena in the combustion flame, resulting in complete combustion. The runner-up was that it was difficult to carry out the process, and as a result produced a large amount of carbon monoxide and soot.

Therefore, this invention is a vaporization type line burner that eliminates the drawbacks of conventional line burners, makes effective use of the heater vaporization section, and enables complete combustion by forming a balanced combustion flame throughout the burner. The purpose is to provide

In order to achieve the above object, the present invention introduces atomized liquid fuel to a heater vaporization section in a vaporization chamber to vaporize it into flammable vapor, and guides this flammable vapor to a burner via an introduction passage to burn it. In this, a housing is integrally provided with a vaporization chamber between the heater vaporization part and the ceiling wall, and a partition wall containing the introduction passage is formed by extending downward from a part of the ceiling wall of the housing, A primary air port communicating with the vaporization chamber is bored at the end of the partition wall, and a secondary air port communicating with the introduction passage is bored approximately in the center of the ceiling wall, and the primary air port of the secondary air port is provided. The present invention is characterized in that a protrusion is provided that protrudes downward from the side opening edge facing the introduction passage.

An embodiment of the vaporizing line burner according to the present invention will be described below with reference to FIGS. 3 and 4.

In FIGS. 3 and 4, the reference numeral 14 indicates a housing, which is composed of two parts 14a and 14b divided into upper and lower parts. A burner plate 15 with flame ports arranged in a straight line is installed horizontally inside the upper housing 14a, and the lower edge of the outer plate of the upper housing 14a is integrally mounted on the upper part of the lower housing 14b. A chamber 16 is formed between the burner plate 15 and the lower housing 14b. On the other hand, a vaporization chamber 17 is formed inside the lower housing 14b, and air sent from a blower 19 is guided to the vaporization chamber 17 via a casing 18 directly connected to the side. A heater vaporizer 20 is integrally incorporated in the lower part of the vaporizer chamber 17, and a heater electrode 21 that conducts current to the heater vaporizer 20 and a nozzle 22 that sprays kerosene into the duct 17 are connected to the lower housing 14b.
It is provided on the upstream side of the duct (on the right side in the figure) at the lower side of the duct. Further, a secondary air port 24 is provided in the center of the ceiling wall 23 of the vaporization chamber 17, and below this secondary air port 24, it extends toward the inside of the vaporization chamber 17, and an introduction passage 25 is formed on the inside. A partition wall 26 is formed, and a protrusion 27 extending toward the introduction passage 25 is provided on the inside of the partition wall 26 and at the opening edge of the secondary air port 24. A primary air port 28 that communicates with the vaporization chamber 17 is provided in the main body.

Since the present invention is constructed as described above, when the heater electrode energizes the heater vaporizer and the blower is rotated, kerosene is sprayed from the nozzle at the same time, the atomized kerosene and the air sent by the blower are mixed together. The mixture is mixed and reaches the downstream end of the duct while contacting the heater vaporizer along the partition wall, passes through the primary air port 28, changes the flow direction, and reaches directly below the secondary air port 24, After rising vertically along the surface of the protrusion 27, it is evenly distributed to the left and right inside the chamber 16, reaches the burner plate, and forms a combustion flame on this plate.

As is clear from the above explanation, according to the present invention, the vaporization chamber, the partition wall that reaches the downstream side of the vaporization chamber, the protrusion, and the heater vaporization section are integrated, and the primary air port is provided on the downstream side of the partition wall, and the Since the ceiling wall of the heater is provided with a secondary air port that communicates with the introduction passage, the ceiling wall, partition wall, and protrusion can also be used as evaporation surfaces, and the entire surface of the heater evaporation section is effectively used, so that no evaporation occurs. The liquid fuel particles become smaller and mix better with air.

In addition, since a vertical protrusion is provided on the opening edge of the secondary air port on the primary air port side, the air-fuel mixture is evenly distributed throughout the chamber, improving the left-right balance of the combustion flame on the burner plate. The fuel can be completely combusted, the generation of carbon monoxide and soot can be reduced, and the risk of combustion flame and back-up phenomenon can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view showing a conventional vaporizing line burner, Fig. 2 is a perspective view showing the insert type plate in Fig. 1, and Fig. 3 is a longitudinal cross-sectional view showing an embodiment of the vaporizing line burner according to the present invention. A top view and FIG. 4 are perspective views showing the lower housing in FIG. 3. 14... Housing, 15... Burner plate, 16... Chamber, 17... Vaporization chamber, 20...
... Heater vaporization section, 22 ... Nozzle, 23 ... Ceiling wall, 24 ... Secondary air port, 25 ... Introduction passage, 2
6...Partition wall, 27...Protrusion, 28...Primary air port.

Claims (1)

[Scope of utility model registration request] Atomized liquid fuel is guided to a heater vaporizer in the vaporization chamber to be vaporized into flammable vapor, and this combustible vapor is guided to a burner via an introduction passage to be burned. A housing with a vaporization chamber formed between the two is integrally provided, and a partition wall containing the introduction passage is formed extending downward from a part of the ceiling wall of this housing, and the end of this partition wall communicates with the vaporization chamber. A primary air port is bored, and at the same time a secondary air port is bored approximately in the center of the ceiling wall to communicate with the introduction passage, and the opening edge of the secondary air port on the primary air port side faces the introduction passage. A vaporizing line burner characterized by having a protrusion projecting downward.