JPH06147422A - Appartus for liquid fuel combustion - Google Patents

Abstract

PURPOSE:To hold down power consumption by reducing ignition time. CONSTITUTION:The title apparatus wherein a vaporizer 1 having an electric heater 2 and a burner head 6 installed on the vaporizer 1 are provided, and fuel vaporized within the vaporizer 1 is mixed with air to effect combustion by means of the burner head 6, is provided with a heat storage device 7 disposed in adjoining relation with the vaporizer 1 and composed of an heat-insulated container 9 and heat storage matter 10 contained within the container, and a control device 11 for alternately effecting heat transmission and heat insulation between the vaporizer 1 and the heat storage device 7, the control device being disposed between the vaporizer 1 and the heat storage device 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid fuel combustion apparatus in which fuel vaporized in a vaporizer and air are mixed and burned by a burner head.

[0002]

2. Description of the Related Art A liquid fuel combustion apparatus of this type has a vaporizer for vaporizing a liquid fuel and an electric heater for preheating built therein, as described in, for example, Japanese Utility Model Publication No. 2-9224. Are known. In this liquid fuel combustion apparatus, so-called preheating, in which the carburetor is heated by an electric heater at the time of ignition, is required.

[0003]

However, in the liquid fuel combustion apparatus described above, the peripheral wall heated by the electric heater of the vaporizer and the bottom wall serving as an oil reservoir are all integrally formed by casting, and the heat capacity of the vaporizer is reduced. In addition, since the heat dissipation area is large, it takes a long time to preheat the vaporizer to a predetermined temperature. For this reason, it is generally 1 before ignition.
Since it takes about 3 minutes, it is a hindrance to comfortable heating at low temperatures, and there is a problem that the electric power required to energize the electric heater increases accordingly.

There is also a technique in which the carburetor is warmed up even during non-combustion in order to shorten the ignition time, but this consumes much electric power.

The present invention has been made in view of the above-mentioned fact, and an object thereof is to reduce power consumption while shortening ignition time.

[0006]

According to the present invention, there is provided a carburetor having an electric heater and a burner head mounted on the carburetor, and the fuel vaporized in the carburetor is mixed with air to form the burner. In a liquid fuel combustion device that burns with a head, a heat storage device that is provided adjacent to a carburetor, and that includes a heat-insulated container and a heat storage agent that is built into this container, and a carburetor and a heat storage device And a controller for alternately controlling heat conduction and heat cutoff between the carburetor and the heat storage device.

[0007]

The heat storage device, which is provided adjacent to the vaporizer and is composed of a heat-insulated container and a heat storage agent contained in the container, is provided between the vaporizer and the heat storage device, and vaporizes. By providing a control device for alternately controlling heat conduction and heat cutoff between the heat storage device and the heat storage device, heat can be transferred between the carburetor and the heat storage device at the time of combustion, and the combustion heat is burned. It is possible to store heat in the heat storage device by giving it to the heat storage device via the nahead and the vaporizer, and shutting off heat between the vaporizer and the heat storage device during non-combustion. Then, at the time of ignition, by setting a state in which heat can be conducted between the carburetor and the heat storage device, the heat of the heat storage device can be used for heating the carburetor together with the electric heater, and the preheating time of the carburetor can be shortened. By promoting gasification, it is possible to shorten the ignition time. Thereby, the power consumption of the electric heater can be suppressed.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a bottomed cylindrical carburetor, 2 is an electric heater incorporated in the carburetor 1, 3 is an oil feeding pipe facing the carburetor 1, and 4 is coaxial with the oil feeding pipe 3. It is an air nozzle provided. That is, the vaporization chamber 1 passes through the oil supply pipe 3.
The liquid fuel guided to (1) is mixed with the air from the air nozzle 4 while being vaporized in the vaporization chamber 5, and the mixed gas thereof is combusted by the burner head 6 attached to the opening of the vaporizer 1.

A heat storage device 7 is provided adjacent to the vaporizer 1, forms a vacuum heat insulating space 8, and has a heat storage agent 10 contained in a container 9 having an opening 9A at the upper portion, and 11 is a vaporizer. 1 is a control device for controlling heat conduction and heat cutoff between the heat storage device 1 and the heat storage device 7. The control device 11 includes a solenoid 12 and
It is driven by a solenoid 12 and is composed of a flat plate 13 including a heat conducting portion 13A and a heat shielding portion 13B.
The flat plate 13 is slid to the left and right by the energization and de-energization 2 so that the heat conducting portions 13A and the heat shielding portions 13B are alternately interposed between the vaporization chamber 1 and the heat storage device 7.

As a result, heat can be conducted between the carburetor 1 and the heat storage device 7 during combustion, the combustion heat is given to the heat storage device 7 via the burner head 6 and the carburetor 1, and vaporized during non-combustion. Heat can be stored in the heat storage device 7 by shutting off heat between the container 1 and the heat storage device 7. When the carburetor 1 and the heat storage device 7 are made to be able to conduct heat during ignition, the heat of the heat storage device 7 can be used together with the electric heater 2 for heating the carburetor 1, and Not only can the ignition time be shortened by shortening the preheating time and promoting the gasification, but also the power consumption of the electric heater 2 can be suppressed thereby.

[0011]

Since the present invention is constructed as described above, the combustion heat stored in the heat storage device at the time of ignition is used together with the heating of the electric heater to shorten the preheating time of the carburetor and accelerate the gasification. Not only can the ignition time be shortened, but this also has the effect of suppressing the power consumption of the electric heater.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a combustion device of a liquid fuel combustion device showing an embodiment of the present invention.

[Explanation of symbols]

 1 Vaporizer 2 Electric heater 6 Burner head 7 Heat storage device 9 Container 10 Heat storage material 11 Control device

Claims (1)

[Claims] 1. A liquid fuel combustion apparatus comprising: a vaporizer having an electric heater; and a burner head mounted on the vaporizer, wherein the fuel vaporized in the vaporizer is mixed with air and burned by the burner head. In, a heat storage device provided adjacent to the vaporizer and comprising a heat-insulated container and a heat storage agent contained in the container; and a vaporizer provided between the vaporizer and the heat storage device. A liquid fuel combustion apparatus, comprising: a control device that alternately controls heat conduction and heat cutoff between the heat storage device and the heat storage device.