JPS6021298B2 - Combustion safety device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention primarily relates to a combustion safety device in a gas burner.

The applicant of the present invention has previously constructed a device of this type that is equipped with a plurality of main burners and is configured in a Kumaguri-kirifusuma type that can be freely selected for partial use or all use. Each element is equipped with an incomplete combustion detection element, and one electrode of each element is normally heated to an oxygen-deficient state by a constant flame burner, and the other fin electrode is heated by the main burner to detect the burner.
In the normal combustion state of the main burner, oxygen concentration is generated in the main burner to obtain a relatively large electrical output. We have proposed a type that controls the output, but in this case, each constant-fire burner must continue its operation when changing the capacity as described above.In other words, when changing the capacity, the main When one of the burners is deactivated, the corresponding normally lit burner must continue to operate, which is not necessarily desirable.

The object of the present invention is to obtain a device which eliminates the above-mentioned disadvantages, and is a power switchable device that is equipped with a plurality of main burners and can freely select the use of some or all of them. In addition, each main burner is provided with each incomplete combustion detection element, and one electrode of each element is normally heated to an oxygen-deficient state by a constant flame burner, and the other electrode is heated by the main burner. In the normal combustion state of the burner, oxygen concentration is generated in the burner and a relatively large electric output is obtained.
In a type having safety devices which are controlled by the total output of the plurality of safety devices, one of the main burners has one safety device, and one safety device has one safety device corresponding to each of the remaining main burners. It is equipped with 2 spare incomplete combustion detection elements, and when extinguishing each one of the burners when switching the bearer power, each corresponding one
The spare incomplete combustion detection elements are put into a switching operation state. Embodiments of the present invention will be described with reference to the attached drawings.

In the drawings, 1 indicates a main burner, and a plurality of burners 1,
For example, as shown in FIG.
The units are configured in a power switchable manner so that a state in which one of them is used or a state in which both are used can be freely selected.

The plurality of burners 1 are not limited to this, but for example, four burners may be arranged in parallel as shown in the fourth figure, and four burners, three burners, and two burners may be arranged in parallel.
It is also possible to have a type that operates by freely selecting between two and one. Further, each burner 1 is provided with each incomplete combustion detection element 4 on its front surface, and one electrode 4a of each element 4 is normally heated to an oxygen-deficient state by the normally lit burner 5, as shown clearly in FIG. At the same time, the other electrode 4b is heated by the burner 1, and in the normal combustion state of the burner 1, the flame becomes as shown by the solid line in the rod diagram, and oxygen concentration occurs in the element 4. Accordingly, a relatively large electrical output can be obtained, but due to incomplete combustion in the burner, the flame touches the electrode 4b as shown by the chain line in the rod diagram, and the oxygen concentration is lost, resulting in a significant decrease in the output. It was to so.

Furthermore, a plurality of burners 1 are provided with one safety valve or other safety device 6, which is controlled by the sum of the outputs of the elements 4, as shown in FIG. Two of them are mainly connected in series, and the safety device 6 is connected to the output side via the control circuit 7. Fourth
The illustrated case is also substantially the same, and the four elements 4 are connected in series, and the safety device 6 is connected to the output side.

Although the above is not particularly different from what was proposed earlier, in itself, each normally lit burner 5 would have to continue operating even though the corresponding main burner 1 would be inconvenient, which is not necessarily preferable.

That is, for example, in the one shown in the first drawing, when the cock 3 is closed and the main burner 1 on the upper side in the drawing is made inconvenient in order to change the capacity, the corresponding constant fire burner 5 is also turned off by the cock 3. A type in which the V supply is cut off is considered, and in this case, the corresponding element 4 loses its heating and the output becomes zero, which causes the inconvenience that the safety device 6 cannot obtain the specified operation. accompanied by. The present invention corresponds to this, and one of the main burners 1 is provided with one spare incomplete combustion detection element 8 corresponding to each of the remaining burners 1, and this is made by cutting and copying. It is configured to be in a laid state.

To explain in detail the burner 1 shown in the first diagram, the burner 1 that is left behind when changing the capacity, that is, the lower burner 1 in the drawing, and the remaining burner 1, that is, the burner 1 that corresponds to the burner 1 in the upper example in the drawing.
A spare element 8 is prepared, and when the upper burner 1 is inconvenient, the element 8 can be used in place of the element 4 in the burner 1.
allowed its output to be guided. More specifically, said element 8 is provided in front of the lower burner 1 in the drawing, adjacent to and substantially identical to its own element 4, i.e. with one electrode connected to the burner 5 and the other. The element 8 is of a type in which the electrode is heated by the burner 1, and the element 8 is connected to the upper burner element in the drawing by a switch 101 which is linked to the power switching knob 9, as shown in FIG. 4 and can be freely switched and connected. Thus, when both burners 1, 1 are used, both elements 4, 4 are connected in series with each other, but if only the lower burner 1 is used in the drawing, the elements 4 and 8 are connected in series. I made it so. To explain this with reference to the case shown in FIG. 4, three spare elements 8 are arranged in parallel to the lowermost burner 1 in the figure, corresponding to the three burners 1 above it, and According to the inconvenience of each one of No. 1, the corresponding one is connected by switching from each switch 101.

To explain its operation with respect to the one shown in the first diagram, when two burners 1, 1 are used, two elements 4, 4 are connected in series, and there is no particular difference from the one proposed earlier. During normal combustion of each burner 1, 1, a large output is obtained and the safety device 6 is located at the barrier valve, and when incomplete combustion occurs, the output is reduced by approximately half and the safety device 6 is closed.

Next, considering the case where the upper burner 1 in the drawing is made inconvenient by switching the capacity, in this case, the lower burner 1
Two elements 4 and 8 are connected in series, and the safety device 6 is controlled by the output thereof. Thus, when the burner 1 is in a normal combustion state, a large output is produced and the safety valve 6 is kept open, and when the burner 1 is in an incomplete combustion state, the output is reduced and it is closed. This operation is substantially the same for the one shown in FIG. 4, and a predetermined control can be obtained at each stage of capacity switching. In this way, according to the present invention, separate elements are prepared in preparation for the inoperation of each constant fire burner at the time of Taterikikirifusuma,
By switching these elements, it is possible to maintain a constant and relatively high output, and even if the continuous burner is not activated due to capacity switching, the same number of elements are always in operation, thus making the control stable and reliable. have

[Brief explanation of drawings]

FIG. 1 is a front view of one example of the present invention, FIG. 2 is a cutaway side view of a portion thereof, FIG. 3 is an electric circuit diagram thereof, and FIG. 4 is an explanatory diagram of a modification thereof. 1...Main burner, 4...Incomplete combustion detection element, 5...Permanent flame burner, 6...Safety device, 8...Ding Incomplete combustion detection element for bowl. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1 A plurality of main burners are provided, and these are configured in a capacity switching type that can be freely selected for partial use or all use, and each main burner is provided with each incomplete combustion detection element, and each element is One of the electrodes is normally heated to an oxygen-deficient state by a normally lit burner, and the other electrode is heated by the main burner, and under normal combustion conditions of the burner, oxygen concentration occurs and a relatively large electrical output is generated. In a type in which a plurality of main burners are provided with one safety device common to the plurality of main burners, and this is controlled by the total output of the plurality of elements, one of the main burners is , one spare incomplete combustion detection element corresponding to each one of the remaining main burners is provided, and when each one of the burners is extinguished at the time of capacity switching, one corresponding one of the spare incomplete combustion detection elements is provided. A combustion safety device comprising: an incomplete combustion detection element in a switching state;