JPS60191108A - Combustion apparatus - Google Patents

Abstract

PURPOSE:To suppress the consumption of electric power low, and to save energy, by unnecessitating supplying of electric power to evaporate liquid fuel to a heater after ignition, by using a heat pipe and using its heat as a combustion heat to evaporate liquid fuel. CONSTITUTION:One end of a heat pipe 2 is thermally fixed to a metallic heat transfer plate 1 which is provided in the downstream side of flame forming part of a combustion cylinder 4, whiel the other end is extended to the inside of an evaporating cylinder 17. Once the combustion cylinder is ignited and burning is started, the heat produced by combustion is received by the heat transmitting plate 1, being transmitted to the evaporating cylinder 17 by the heat pipe 2, evaporating kerosene oil in the evaporating cylinder 17. Kerosene is evaporated utilizing combustion heat and a heater 3 is left in the stopped state while combustion is taken place. Once combustion is ended, evaporation can be taken place by using a heat pipe and its combustion heat as a heat to evaporate liquid fuel, without using a heating surce such as a heater in order to evaporate fuel. A heat pipe is effective to save energy, because it can suppress the consumption of electric power to be supplied to a heater.

Description

[Detailed description of the invention] <Technical field of invention> The present invention relates to a device for burning liquid fuel such as kerosene.

<Prior art> Conventionally, a fuel cell is equipped with a vaporization chamber to vaporize liquid fuel such as kerosene,
2. Description of the Related Art There is a combustion device that includes a vaporization chamber that vaporizes vaporized fuel and supplies combustion air together with the vaporized fuel to a combustion section for combustion.

This device is configured to heat and vaporize liquid fuel using a ceramic heater or a sheathed heater.

However, in such conventional combustion devices, the heater capacity is increased at the time of ignition in order to heat the vaporized fuel transport pipe, etc., which has the heat necessary for vaporizing the fuel and the heat capacity, but even at the time of combustion, the heater capacity is increased. It is necessary to constantly operate the heater with a small amount of electric power, which has the disadvantage of increasing power consumption.

<Summary of the Invention> In view of the above-mentioned conventional circumstances, the present invention provides a structure in which a heat pipe is used to use one combustion heat as heat for vaporizing liquid fuel, thereby vaporizing liquid fuel after combustion. The purpose is to save energy by eliminating the need to energize the heater for heating and keeping power consumption low.

<Embodiments of the Invention> Hereinafter, embodiments of the present invention will be described based on FIGS. 1 and 2.

In Fig. 1, reference numeral 4 denotes a metal combustion tube equipped with a combustion section having a plurality of air-fuel mixture jets 22, and a trumpet-shaped suction port 20 for sucking in combustion air and vaporized residue, and a mixing tube communicating with the trumpet-shaped suction port 20. A chamber 21 is provided. 5 is a rectifier plate installed inside the combustion tube 4.

The air-fuel mixture in the mixing chamber 21 is uniformly guided to the air-fuel mixture outlet 22.

Reference numeral 25 denotes an ignition plug, which discharges a spark between it and the combustion tube 4 to ignite the air-fuel mixture. On the other hand, 11 is a vaporizing tube that heats and vaporizes kerosene to form a vaporizing chamber, 3 is a heater for heating the vaporizing tube 17, and B is an oil pipe that supplies kerosene to the vaporizing tube 17 through an electromagnetic pump 10. It is connected to the subtank 11. 16 is Zabutank 11V KoA-
The main tank is equipped with a V-C tail and a nozzle 'fR'-C for supplying vaporized gas to the combustion material 4). This nozzle pipe 18 is connected to the vaporization tube 17 as well as a feed pipe 9 for sending vaporized gas. An iron core 13 constituting a switching valve portion is disposed at a base end position and a rear end position of the nozzle 6 so as to be slidable in the axial direction.

This iron core 13 is normally connected to the nozzle 6 by a spring 19.
is biased in the direction of closing. Reference numeral 15 denotes a thermostat installed in a part of the nozzle pipe 18, and in response to the heat generated by the vaporized gas introduced into the nozzle pipe 18, the power supply of the magnet coil 7 provided in the nozzle pipe 18 is switched to 1. "Enter"
It is for the purpose of In this case, when a current flows through the coil 7, the iron core 13 is attracted against the spring 10, and the nozzle 6 is operated in the direction of opening. 12, while the nozzle 6 of the nozzle pipe 18 is closed, that is, while the thermostat 15 is thermally responsive, a part of the vaporized gas is transferred to the wall of the nozzle pipe 18 and the iron core 13.
This is a return pipe for returning to the sub tank 11 from the small gap between the tank and the tank.

Reference numeral 2 denotes a heat pipe whose one end is configured to be in thermal contact with the combustion heat and the other end is in thermal contact with the vaporization chamber, and one end of which is disposed downstream of the flame forming part of the combustion tube 4. It is thermally fixed to a metal heat conductive plate 1, and the other end is a vaporizer cylinder 1.
It is extended within 7.

In such a configuration, the kerosene in the tank 11 is supplied into the vaporizer cylinder 1T by the operation of the electromagnetic pump 10. When the heater 3 of the vaporization tube 17 is activated simultaneously with the operation of the electromagnetic pump 10, kerosene is vaporized within the vaporization tube 17. The vaporized gas of kerosene is guided into the nozzle pipe 18 via the transport pipe 9. In this state, until the temperature and pressure of the vaporized gas are sufficient for combustion, a portion of the vaporized gas is transferred to the return pipe 12.
It is returned to the Zabtank 11 from there. When the temperature and pressure of the vaporized gas in the nozzle pipe 18 become sufficient for combustion, the thermostat 15 is activated and input is returned to the magnet coil 7. As a result, the iron core 13 is connected to the spring 1
9 to open the nozzle 6 which was closed by the needle 14VC. Therefore, vaporized gas and combustion air are fed under pressure from this nozzle 6 to the suction port 20. The vaporized gas and air necessary for combustion are mixed in a mixing chamber 21, and are also discharged from a mixture jet port 22 to a combustion pipe 4, and then to a spark plug 25.
ignites and burns. Once ignited and burned, the heat conduction plate 1 receives the heat generated by the combustion, and this heat is transferred into the vaporization tube 17 by the heat pipe 2.
Kerosene in 1 can be vaporized.

Therefore, according to this configuration, since the kerosene can be vaporized using combustion heat during combustion, the heater 3 can be put into a non-operating state, and the heater 3 does not have to be constantly connected as in the conventional case. It is also possible to keep gravity consumption low.

In the above-mentioned embodiment, the vaporization cylinder 17 was separately provided and the end of the heat pipe 2 was extended into the vaporization cylinder 17, but as shown in FIG. A space surrounding the portion may be integrally molded, and this space may be configured as the vaporization chamber 27. In this case, an annular groove 2A having a predetermined length of 9 mm is provided in the axial direction from the end I (11) at the end of the heat pipe 2, and a lid 26 is attached to the end i61 of the heat vibe 2 to form a space. With such a configuration, there is no need to prepare a separate vaporizer cylinder, and the configuration can be simplified.

<Effects of the Invention> As explained above, according to the present invention, the heat of combustion is used as the heat for vaporizing the liquid fuel, so that once it has been combusted, This method is effective for energy saving, as vaporization can be performed without using a heat source such as a heater for fuel vaporization, and the power consumption of the heater can be suppressed.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view showing one embodiment of the combustion apparatus angle according to the present invention, and FIG. 2 is a partially enlarged vertical cross-sectional view of another embodiment. 1... Heat conduction plate 2... Trough tube 4... Combustion tube 17... Vaporization cylinder 21... Mixing chamber 22... Mixture spout 27... Vaporization chamber representative Masuo Oiwa (et al.) 2 people) Figure 1 6 1,000-yen amendment form 1, 'l'f'F'L'G i:jlQ, /jlli'
J59-046784 No. 2 Title of the invention Combustion device; 3. The person who wears the cuffs ('l,: (7) relationship 11 + permission 1 (l(! person fj
Place: Higashi Elementary School 'Miyakochiyo 111-ku Marunouchi-°1 Ro I2 N Rei;
3>;- Name (601) '-,': Hishi'1, Shiki Co., Ltd. Representative Kata 111 Ren 8 Department 1 Agent 1 To Address Tokyo 111-ku Marunouchi, Cho-dai 12 syllables: 3
'l;Detailed Description of the Invention @Detailed Description of the Invention, Section 6, Contents of the Amendment, page 1, line 19, the statement ``includes a vaporization chamber for vaporizing vaporized fuel'' is deleted. that's all

Claims (2)

[Claims] (1) In a combustion device that includes a vaporization chamber that vaporizes liquid fuel and supplies combustion air together with the vaporized fuel to the combustion section for combustion, one end of the heat pipe is configured to be in thermal contact with the combustion heat. and the other end of the heat pipe is brought into thermal contact with the vaporization chamber. (2) The combustion device according to claim 1, wherein the vaporization chamber is constructed by integrally molding a space surrounding the end of the heat pipe.