JPS6334576Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is a gas stove such as a rotary gas stove, which is rotatably provided with a band for adjusting the exhaust hole, and this band allows the opening of the outlet of combustion waste gas. By adjusting the hole area, the optimum combustion condition and the thermal efficiency of the pot can be maintained at a higher level.

(b) Conventional technology In conventional gas cookers, the exit direction of the combustion waste gas is mainly concentrated at the rear, avoiding the side where the worker stands during use of the cooker, or is arranged diagonally to the side of the rear. However, depending on the site of use, joint work may be performed from both the front and rear, which may be inconvenient.

(c) Problems that the invention aims to solve When manufacturing gas kettles to a standard, this invention allows the user to position and use them as they wish, without having to design and manufacture the exhaust gas outlet direction in advance. As a result, production workability can be improved. Additionally, even if the burner input is changed depending on the purpose of use of the kettle, by adjusting the intake amount of excess air during combustion by the burner on the exhaust side, it is possible to maintain the optimal combustion state and the heat efficiency of the kettle at a higher level. can.

(d) Means for solving the problem (technical means) In order to solve the above technical problem, this invention forms a vertical wall 3 on the upper part of the outer wall surrounding the combustion waste gas passage section 2 of the gas stove 1, Apertures 4 of a fixed shape are arranged side by side over the entire circumference of this vertical wall 3, and a rotatable band 5 is provided that tightly covers the apertures 4 from the outside over the entire circumference. A hole 6 similar to the discharge hole 4 is formed in a part of the band 5.
By rotating and setting an exhaust passage where the openings 4 and 6 overlap, the exit direction of the combustion waste gas from the gas boiler 1 can be set in an arbitrary direction, or the opening area of the combustion waste gas outlet can be adjusted. It was made so that it could be done.

(e) Effect The above technical means works as follows.

To boil food and drinks in the gas cooker of this invention, after opening the lid 7 and placing the food in the gas cooker 1, the gas burner B in the heat source chamber H provided at the lower part of the furnace 8 is turned on. The combustion flame heats the entire circumferential surface of the gas pot 1 to complete the cooking.

The combustion exhaust gas of this gas burner B is transferred to the exhaust gas passage section 2.
The exhaust gas is then discharged to the outside of the pot through the overlapping exhaust passages of the openings 4 and 6. In this case, the exit direction of the combustion waste gas can be arbitrarily determined by the user using the band 5 for adjusting the exhaust hole, so that the boiling work can be carried out smoothly while avoiding the influence of the hot waste gas from the opening of the exhaust passage. It's getting old. Furthermore, depending on the purpose of use of the pot, burner B
Even when the input is changed, the ventilation area can be adjusted by fine-tuning the rotation of band 5, and the intake amount of excess air during combustion in burner B can be adjusted on the exhaust side to achieve the optimal combustion state and the thermal efficiency of the pot. This allows it to be maintained at a high level.

(F) Embodiment The figure shows an embodiment of a gas cooker equipped with an exhaust hole adjustment band of this invention, for example, a forward-tilting rotary gas cooker. A vertical wall 3 is formed on the upper part of the outer wall surrounding the combustion exhaust gas passage portion of the gas stove 1 on the upper part of the furnace 8 supported through the furnace 12. , a large number of holes 4 drilled in a circular shape or the like are arranged side by side at a constant pitch, and a band 5 is provided that tightly covers the holes 4 from the outside over the entire circumference. A large number of exhaust holes 6 are arranged in parallel at the same constant pitch as the holes 4 over about 1/3 of the length, and by horizontally rotating this band 5 as necessary, the combustion waste gas from the pot 1 can be removed. The outlet direction can be set in any direction such as the front-back direction, or the opening area of the combustion exhaust gas outlet can be adjusted.

In FIG. 1, the overlapping portion of the openings 4 and 6 is the exhaust passage in use.

As an example of a means for attaching the band 5 to the outer periphery of the vertical wall 3 of the furnace 8, for example, as shown in FIG. It is fixed to one end 13 with a stator 16 such as a screw or rivet pin, and a connection hole 18 is pre-inserted in the other end 17 of the band 5.
This is done by drilling a hole in the hole.

Then, this band 5 is wound around the outer peripheral surface of the vertical wall 3, and the tightening band piece 14 is attached to the tip end 19 with one end 13 and the other end 17 facing each other.
is passed through the connecting hole 18 of the other end 17 and pulled in the direction of the one end 13 of the band 5 to tighten the other end 17 of the band 5, and as shown in FIG.
The band 5 is fixed to the entire outer periphery of the vertical wall 3 by pressing the front end 19 of the band 4 to the rear portion 15 of the band 5.

(g) Effects of the invention According to this invention, it has the following unique effects.

(1) When producing standard gas kettles, there is an advantage that the user can position and use the kettle as desired without considering the exit direction of the exhaust gas in advance.

(2) Even if the burner input changes depending on the purpose of use of the kettle, or if the input changes due to burner replacement, the optimum combustion state and the kettle can be maintained by adjusting the intake amount of excess air during burner combustion on the exhaust side. Thermal efficiency can be maintained at a higher level.

[Brief explanation of drawings]

The figures show an example of a gas cooker (applied to a forward-tilting rotary gas cooker) equipped with an exhaust hole adjustment band according to this invention. The figure is a partial vertical sectional front view showing an opening for discharging combustion exhaust gas, FIG. 4 is a front view showing both ends of the band connected, and FIG. 5 is a plan view showing the connected state. 1... Gas boiler, 2... Combustion waste gas passage section, 4...
...Hole for vertical wall, 5... Band, 6... Opening.

Claims (1)

[Scope of utility model registration request] An aperture of a certain shape is provided throughout the circumference of a vertical wall formed on the upper part of the outer wall surrounding the combustion exhaust gas passage of a gas cooker, and this aperture is closely covered from the outside over the entire circumference. set up a band,
Openings similar to the openings described above are made in part of the entire circumference of this band, and by rotating the band as necessary, the exit direction of the combustion waste gas from the pot can be set in any direction such as front and back, or the combustion A gas boiler equipped with an exhaust hole adjustment band that allows you to adjust the opening area of the waste air outlet.