JPS6058395B2 - Furnace monitoring device mounting seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seat for mounting an in-furnace monitoring device, and more particularly to a seat for mounting an in-furnace monitoring device for monitoring the ignition and combustion conditions of a burner combustion port of a boiler.

An in-furnace monitoring device is attached to the furnace wall of the boiler to monitor the ignition and combustion conditions at the burner combustion port of the boiler.

This in-furnace monitoring device is constructed by bending a furnace wall tube conventionally provided on the furnace wall to form an opening and attaching it to a monitoring device mounting seat located at the center of the opening. However, in recent years, the structure of boilers has become more complex and diversified, and as a result, there are significant restrictions on the location of the in-furnace monitoring equipment. This resulted in the inconvenience that this could not be carried out satisfactorily. Figures 1 to 4 show a conventional mounting seat for an in-furnace monitoring device, and Figures 1 and 2 show a bent part of the furnace wall tube 1' provided on the furnace wall, which is a water-cooled wall. opening 3'
A furnace wall recess 7' is formed.

this opening. A furnace monitoring device mounting seat 2' is installed so that the center of the furnace 3' and the center thereof are aligned, and a monitoring port 4' is provided that aligns the center.

3 and 4, a furnace wall tube 1a' is bent into a mountain shape, and a mounting seat 2a' having a mountain-shaped or roof-shaped cross section is provided on the slope of the furnace wall tube 1a' bent in a mountain shape. By providing a monitoring port 4a' on the inclined surface of the mounting seat 2a', an elevation angle is given to the monitoring device, thereby improving the field of view. Regarding the first mounting seat described above, as shown in FIGS. 5 and 6, a mounting seat 2' is provided to provide a vertical field of view A' and a horizontal field of view of the furnace wall 6'. Both of B' are insufficient, resulting in Burnaro 5' which cannot be seen or entered the field of view.
With the second mounting seat, although the vertical field of view A' is improved, the horizontal field of view B' is still not improved. The purpose of this invention is to provide a mounting seat for a furnace monitoring device that can eliminate the drawbacks of the prior art described above, expand the field of view of the monitoring device, and completely monitor the inside of the furnace with a small number of monitoring devices. be.

In short, this invention forms a plurality of recesses in the furnace wall for attaching a furnace monitoring device, particularly in a shape having three or more slopes, that is, in the shape of a pyramid or a truncated pyramid, and monitors one or more of the slopes. The furnace wall tube is also bent and formed to correspond to the shape of this mounting seat to form a furnace wall recess, and the burner combustion port (burner throat portion) is provided on the side or opposing inner wall of the furnace.
is completely within the field of view.

Embodiments of the present invention will be described below with reference to the drawings. In Fig. 7 and Fig. 8, the furnace wall recess 7 and the monitoring device mounting seat 2 are shown.
is formed into a pentagonal pyramid shape with five slopes, and among these slopes, the slope does not belong to either the vertical direction or the horizontal direction of the furnace wall on which the mounting seat 2 is installed (hereinafter referred to as composite). A monitoring port 4'' is provided on the slope 2b of the slope 2b or 2b'', which is located in the direction (hereinafter referred to as "direction"), that is, the slope faces diagonally upward or downward (in the illustrated case, diagonally upward) of the furnace wall.

The furnace wall tube 1 at a position corresponding to the mounting seat 2 is bent and formed into a three-dimensional shape having approximately the same shape as the mounting seat to form a furnace wall recess. In other words, in FIG. 9, the installation position 2a of the mounting base is three-dimensionally molded into a substantially hexagonal shape, and the first
As shown in FIGS. 0 and 11, an opening 3 is bent and formed at a position corresponding to the monitoring port 4. 1b indicates a bending point of the furnace wall tube 1.

With the above structure, as shown in FIGS. 12 and 13, both the vertical field of view A and the horizontal field of view B are enlarged, and all burner combustion ports 5 can be included in the field of view.

FIGS. 14 and 15 show another embodiment in which the inside of the furnace is monitored using an angle of depression.

That is, a monitoring port 4 is provided on the upper slope of the pentagonal pyramid mounting seat 2 in the compound direction. One monitoring port 4 may be provided, but if two monitoring ports 4 are provided as shown in the figure, the field of view can be further expanded. The mounting condition of the furnace wall tube 1 inside the mounting seat 2 is the same as in the first embodiment. According to this invention, the field of view of the monitoring device can be expanded, and the inside of the reactor can be completely monitored with a small number of monitoring devices.

Furthermore, since the furnace wall tube is bent to correspond to the pyramid-shaped mounting seat, it has the effect of preventing radiant heat inside the furnace, and there is no risk of burnout.

[Brief explanation of the drawing]

Figure 1 is a side sectional view of a conventional furnace monitoring device mounting seat;
The figures are a front view of Fig. 1, Fig. 3 is a side sectional view of another conventional furnace monitoring device mounting seat, Fig. 4 is a front view of Fig. 3, and Fig. 5 is a front view of Fig. 1.
The figure is a plan view of the inside of the furnace showing the field of view when a conventional mounting seat is used, FIG. 6 is a side view of the inside of the furnace, and FIG.
FIG. 8 is a side view of FIG. 7, FIG. 9 is a plan view of a group of furnace wall tubes showing the bent state of the furnace wall tubes, and FIG. 10 is a side view of FIG. 9, FIG. 11 is a sectional view taken along the line A-A of FIG.
14 is a front view of a mounting seat showing another embodiment of this invention, and FIG. 15 is a side view of FIG. 14. 1...Furnace wall tube, 2...Furnace monitoring device mounting seat, 3...Opening, 4...Monitoring port, 5... ... Burner combustion port, 6 ... Furnace wall,
7...Furnace wall recess, A...Vertical and directional field of view, B... Horizontal field of view.

Claims (1)

[Claims] 1. In a furnace wall recess formed by bending a furnace wall tube and provided with a seat for mounting an in-furnace monitoring device, the furnace wall recess is shaped approximately like a polygonal pyramid and one or more monitoring ports are provided on the slope of the furnace wall recess. A seat for attaching a furnace monitoring device, characterized in that a seat for mounting a furnace monitoring device having a shape corresponding to the shape of the furnace wall recess is provided.