JPH0443695Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention has an oil combustion chamber having an evaporation plate at the center of the bottom of a heat radiation outer cylinder, and an inner cylinder installed above the heat radiation outer cylinder and the oil combustion chamber. A heat transfer space is formed between the
The present invention relates to a radiant oil stove in which oil in an evaporating dish burns to become high-temperature gas rising up an inner cylinder, and then the high-temperature gas descends through a heat transfer space.

[Conventional technology]

This type of radiant oil stove sucks the air necessary for combustion from the outside into the oil combustion chamber to burn the fuel, and then allows the hot air that has risen up the inner cylinder from the oil combustion chamber to flow down into the heat transfer space. This method transfers heat to the heat radiating outer cylinder and sucks the exhaust into the exhaust pipe, but the drawback is that the hot air is biased towards the side where the exhaust pipe is attached, where the exhaust is sucked.

As a countermeasure to this problem, the applicant of the present invention has already installed an air flow regulating plate having ventilation holes that are formed in order to increase the distance from the exhaust port at the boundary between the heat transfer space and the exhaust gas gathering part. To provide a stove that eliminates unevenness of flowing air due to suction force and uniformly dissipates radiant heat from the entire stove. (Jikko 54
-35007) However, even if this type of stove is used, it is convenient for large-capacity stoves, but for stoves that are moved and installed relatively frequently, such as those used in outdoor tents, etc. for,
It was found that since the entire structure had to be made small, the area of the oil surface of the oil combustor that accommodated the oil fuel was restricted, resulting in a significant drop in combustion efficiency. .

[Problem that the invention attempts to solve]

This invention was made in view of the actual situation,
This is an attempt to solve this problem with conventional products by preventing as much as possible the reduction in combustion efficiency caused by the reduction in the surface area of combustion oil in this type of relatively compact radiant oil stove. .

[Means for solving problems]

In the present invention, in order to solve the above problems, a heat transfer space 10 is formed between the heat dissipation outer cylinder 8 and the inner cylinder 9 formed concentrically with the outer cylinder, and a heat transfer space 10 is formed below the space. , an exhaust collecting section 11 forming an exhaust port 12 is provided on one side, and a heat dissipating outer cylinder 8 is provided.
In an oil stove in which an evaporating dish 4 is formed at the bottom of the oil combustion chamber 7 located at the center of the bottom of the evaporating dish 4, b. peripheral end 17b of
is formed into an inclined surface, and a plurality of protruding members 17 are provided whose heads 17a protrude above the oil level at a predetermined height.

c It is established with the kerosene stove as its gist. That is, the radiant kerosene stove having the above-mentioned item a is characterized by having a protruding member protruding from the evaporating dish.

The present invention will be described below based on embodiments with reference to the drawings.

〔Example〕

FIG. 1 is a cross-sectional explanatory diagram showing a kerosene stove 1 according to the present invention.

Oil is sent from an oil tank (not shown) to an oil volume regulator 2, the flow rate of which is arbitrarily adjusted in the regulator, and is sent via a nozzle 3 to an evaporation plate 4 installed at the center of the bottom of the oil combustion chamber, which will be described later. It will be done. A porous ring 5 that temporarily takes in air is connected to the edge of the evaporating dish 4, and a porous ring 6 whose diameter has been reduced to take in secondary air is provided above it to form an oil combustion chamber 7. be done.

Above the oil combustion chamber 7 is an upper plate 8 of the heat dissipation outer cylinder 8.
An inner cylinder 9 lower than a is provided concentrically with the heat radiating outer cylinder 8, and a heat transfer space 10 is formed between the heat radiating outer cylinder 8 and the inner cylinder 9.

An annular exhaust collection part 11 is formed below the heat transfer space 10 so as to surround the oil combustion chamber 7, and an exhaust port 12 is formed on one side of the annular exhaust collection part 11, to which an exhaust pipe 13 is attached. Further, a gap 14 is provided between the exhaust gas collecting portion 11 and the oil combustion chamber 7 to take in air for burning fuel oil.

Further, at the boundary between the heat transfer space 10 and the exhaust gas collecting section 11, an air flow regulating plate 15 as shown in FIG. 2 is provided. This airflow regulating plate is already in a donut shape and is fitted into the inner cylinder 9, and has ventilation holes 16 that are smaller as it gets closer to the exhaust port 12 and larger as it gets further away from the exhaust port 12. The ventilation hole 16 has the function of eliminating the unevenness of the flowing air due to the suction force of the exhaust port 12, and eliminates the suction force that decreases as it moves away from the exhaust port 12.
This is compensated for by increasing the airflow area, and the amount of airflow flowing from the heat transfer space 10 into the exhaust gas collecting section 11 is distributed uniformly over the entire circumference of the stove.

In a kerosene stove configured in this way,
A feature of the present invention resides in a block-shaped protruding member 17 protruding from the bottom surface of the evaporating dish 4. One or more of these members are provided. FIG. 3 is a plan view of this, and in this example, four protruding members 17 are shown, but there may be several tens of protruding members if there are many. Further, the shape of the protrusion is preferably a block-like protrusion that is relatively gently formed as a whole, such as a cylindrical shape or an inverted mortar shape. Especially head 1
The peripheral end 17b of 7a is formed into an inclined surface.

This protruding member 17 is formed so that its head 17a protrudes above the oil level at a predetermined height, so it is always floating above the oil level, and in this state it has a very remarkable effect in accelerating combustion. . As shown in FIGS. 4 and 4, before the start of combustion, the oil level B is in a state in which the head 17a of the protruding member 17 is projected, but after a while, the oil level becomes dotted in the figure. As shown in FIG. Since the surface area of the oil also rises to the top of the head 17a of the protruding member, the surface area of the oil increases further, so that the combustion efficiency of the oil becomes even higher. Another effect of the protruding member is that when the oil supply to the oil combustion chamber is cut off after a while after the start of combustion and the remaining oil is burned until all the remaining oil is burned out, the entire protruding member is scorched, and at this time the oil is turned off again. It was also found that if the oil is gradually supplied into the oil combustion chamber, the oil will vaporize efficiently in the scorching heat area, resulting in high combustion efficiency.

[Effect of idea]

Since the present invention is based on the above configuration,
Due to the inevitable demand for downsizing of the oil combustor in this type of kerosene stove, whose capacity is limited depending on the location of use, etc., we have improved the conventional product, which lowers heating efficiency, by creating a protruding member on the evaporation tray of the oil combustor. By providing a stove, the effect is essentially the same as that of a wider oil surface, and combustion efficiency comparable to that of relatively large radiant stoves can be obtained, making it an extremely useful oil stove. A stove can be provided.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional overall explanatory diagram of the kerosene stove according to the present invention, Fig. 2 is a bottom view of the section A-A in Fig. 1 showing the relationship between the airflow adjustment plate and the exhaust port, and Fig. 3 is the evaporation plate. FIG. 4 is a planar explanatory view showing the protruding member in FIG. 1... Oil stove, 2... Oil level regulator, 3...
... Nozzle, 4 ... Evaporation dish, 5, 6 ... Porous ring, 7 ... Oil combustion chamber, 8 ... Heat dissipation outer cylinder, 9 ... Inner cylinder, 10 ... Heat transfer space, 11 ... Exhaust collecting part ,1
2...Exhaust port, 13...Exhaust pipe, 14...Gap,
15...Air flow adjustment plate, 16...Vent hole, 17...
Projecting member, 17a...Head of the projecting member, 17b...
...peripheral end of the protruding member.

Claims (1)

[Scope of utility model registration request] A heat transfer space 10 is formed between the heat dissipation outer cylinder 8 and an inner cylinder 9 formed concentrically with the outer cylinder, and an annular exhaust collection having an exhaust port 12 on one side is formed below the space. In the oil stove, the evaporating tray 4 is further formed at the bottom of the oil combustion chamber 7 located at the center of the bottom of the heat dissipating outer cylinder 8.
A plurality of protrusions protrude in a lump shape from the inner bottom surface at a predetermined distance from each other, the circumferential end 17b of the head 17a is formed into an inclined surface, and the head 17a protrudes above the oil level at a predetermined height. A kerosene stove characterized in that it is configured by providing a member 17.