JPS6039609Y2 - surface combustion burner - Google Patents

Description

[Detailed description of the invention] This invention relates to a surface combustion burner, and the direction in which primary air and secondary air are combusted in the required burner prevents insufficient supply of secondary air. The purpose is to obtain a sexless burner.

In conventional Bunsen type burners for stoves, holes are provided in the inner part of the burner through which secondary air can pass, thereby causing combustion.

However, it is a flat burner with surface combustion, and there is no example of it facing upward and naturally supplying air.

An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 is a cross-sectional view of the burner, Figures 2a and b are front views and cross-sectional views of a heat-resistant plate with a burner port and grooves for secondary air, and Figure 3 is a cross-sectional view of a heat-resistant plate with a flame port and grooves for secondary air. FIG. 2 is a perspective view of a heat-resistant plate with an air intake groove.

In the figure, 1 is a combustible gas injection nozzle, 2 is a mixing tube and head of a burner, 3 is a heat-resistant plate having a flame opening, 4 is a secondary air intake groove with an upward opening, which is a feature of the present invention, and 5 is a secondary air intake groove. It's a hot spot.

The gas jet from the nozzle 1 enters the mixing tube interior 2, and the primary air is sufficiently mixed in the mixing tube by the gas jet energy, and a gas-air mixture is released from the flame port 5.

It is burned at the flame mouth, but the primary air is mixed,
If secondary air is required, the center of the burner should be
There is no room for secondary air to enter due to the combustion exhaust at the outer periphery, and incomplete combustion occurs in the center.

In order to introduce secondary air into the burner, a secondary air intake groove 4 without a flame port is provided from the outermost periphery toward the center, and combustion is good when sufficient secondary air is supplied.

In this way, the present invention uses a flat plate-shaped inorganic refractory material with many small holes as flame holes, and burns a mixture of flammable gas and air near the outlet of the flame hole to generate red heat around the flame hole. In a surface combustion type burner that emits radiant heat, when burning with the combustion surface facing upward, the area near the outermost periphery of the combustion part is , The inner combustion part is opened from the outermost peripheral edge to the inner combustion part, and the upper part is opened as many grooves as necessary, and the groove is not provided with a flame hole. A flat plate made of inorganic refractory material that supplies the necessary secondary air to the inner combustion part through the opening at the outermost periphery and provides good combustion performance for the burner as a whole. This burner is a surface combustion burner that has flame holes on its surface and can be used facing upward.

As described above, according to the present invention, the following effects can be obtained.

Since an open groove communicating from the outermost periphery of the burner to the inside is provided, a passage for supplying secondary air is provided, and a good combustion state can be obtained.

Conventionally, in order to supply secondary air directly inside the burner, a large hole had to be made in the center of the burner to allow it to communicate directly with the outside air, resulting in a complicated configuration such as a mixing tube and burner, but this invention solves the problem with a simple configuration. Therefore, it is possible to provide a combustion burner facing upward, and it is also possible to commercialize a burner that requires secondary air.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a surface combustion burner according to an embodiment of the present invention, FIGS. 2a and 2b are a plan view and a sectional view of the same heat-resistant plate, and FIG. 3 is a perspective view of FIG. 2. 2... Mixing pipe and head, 3... Heat resistant plate, 4... Secondary air intake groove.

Claims (1)

[Scope of utility model registration request] A surface combustion burner in which a heat-resistant plate is provided on the burner body, a plurality of flame ports are provided on the heat-resistant plate, and grooves without flame ports are provided on the surface of the heat-resistant plate to supply air toward the center.