JPH0156335B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Object of the Invention, Field of Industrial Application) The present invention relates to an improvement in a gas combustion burner.

(Prior art and its problems) The present inventor has proposed a new and useful burner device for gas combustion in Utility Model Application No. 81228/1983. However, it has been found that the gas combustion burner device having this structure has the following problems.

In other words, the upper surface of the combustion tube has two rows of flame ports perforated in the length direction, and when combustion begins, the upper part of the combustion tube becomes hot in a short time, but the lower part of the combustion tube becomes hotter than the upper part. It doesn't get that hot. Therefore, at the beginning of combustion, there is a temperature difference between the upper and lower parts of the combustion tube.
The combustion tube as a whole does not expand uniformly, and the upper side of the combustion tube, where the temperature is higher, stretches more than the lower side, and as a result, the combustion tube curves upward.

For this reason, the flame transfer plate attached to the top surface of the combustion tube also expands and contracts in accordance with the movement of the combustion tube, causing it to become distorted and deformed.

Also, since the transfer plate itself is loosened directly by the gas fire, it becomes high temperature and tries to expand before the combustion tube.
Because it is fixed to the combustion tube, it cannot expand freely.
In addition to the above reasons, the fire transfer board becomes distorted and deformed, and no longer performs its fire transfer function.

(Problems to be solved by the present invention) The problems to be solved by the present invention are such that the shape of the combustion tube changes due to the influence of temperature difference, and even if the fire transfer plate tries to extend ahead of the combustion tube. The purpose is to prevent the fire transfer plate from being distorted or shrunk so that it can perform a sufficient fire transfer function.

(Means for solving the problems and their effects) The technical means of the present invention taken to solve the above problems are as follows.

(a) Fire transfer plates are attached to the flame ports arranged in a row in the combustion tube; (b) The fire transfer plates are divided into the required number, and gaps are formed between the flame transfer plates. (c) Fire transfer connecting plates are installed in the gaps between the fire transfer plates.

In this way, even if the combustion tube changes due to temperature differences, the expansion and contraction of the fire transfer plate is absorbed by the gap, preventing the fire transfer plate from being distorted or contracted, and achieving a sufficient fire transfer function. This is how it was done.

(Example) The present invention will be described in more detail based on an example shown in the drawings. It should be noted that the present invention is not limited to this embodiment, and many modifications can be made within the scope of the claims.

FIG. 1 is an exploded perspective view showing an embodiment of the present invention;
Fig. 2 is a perspective view of the ignition part of a conventional gas combustion burner device, Fig. 3 is a cross-sectional view showing a state in which a fire transfer plate is attached to a combustion tube, and Fig. 4 is a cross-sectional view of a mixed gas production device. .

The gas combustion burner has a cylindrical combustion tube 1 with a closed tip, and a large number of flame ports 10 are bored in two rows in parallel on the upper surface of the combustion tube 1.
A flame outlet 10 is provided on the tip A side and the base B side of the flame outlet 10.
Fire-circuit burner ports 11, 11a are provided to connect the two rows of parallel burner ports 10 to allow the fire ignited in a portion of the fire port 10 to ignite the entire burner port 10. .

A fire transfer plate 2 is attached to the upper surface of the combustion tube 1 to help the flame transfer to all the flame ports 10.

This fire transfer board 2 is a former heat transfer board 2a and a medium heat transfer board 2b.
It is divided into three parts: and a preheat transfer plate 2c. In addition,
The number of divisions of the transfer plate 2 is not limited to three, but may be divided into an appropriate number depending on the length of the combustion tube 1 and other conditions.

The required number of attachment holes 20 are drilled in the main fire transfer plate 2a, but among the attachment holes 20, the main fire transfer plate 2a
The base part B side is provided with a circular fixing hole 2 so as not to block the fire pit 11 even if the base fire transfer plate 2a expands and stretches.
It has become 3. When the length of the other attachment holes 20 including the attachment hole 24 on the tip part A side is about to increase due to expansion of the base transfer plate 2a,
Even if it is attached with screws 40, it has a long hole so that its expansion will not be hindered.

A required number of attachment holes 20 are bored in the medium heat transfer plate 2b, and among the attachment holes 20, the central attachment hole 20 is a circular fixing hole 26.

The other attachment holes 20, including the attachment holes 25 and 27 at both ends, are elongated holes so as not to impede the expansion when the medium heat transfer plate 2b expands. It's summery.

The required number of attachment holes 20 are also drilled in the pilot transfer plate 2c, but the attachment holes 20 on the side of the tip A do not allow the fire to flow even if the pilot transfer plate 2c expands and stretches. A circular fixing hole 29 is formed so as not to block the hole 11a.

The other attachment holes 20 including the attachment hole 28 on the side of the base part B are designed to be long enough so as not to impede the length expansion when the lead transfer plate 2c expands. It is a hole.

Between the above-mentioned main fire transfer plate 2a, medium heat transfer plate 2b, and prefire transfer plate 2c, gaps 5, 5a of a required length are provided. 2b,
It is designed to absorb deformation when the pilot transfer plate 2c expands or when the combustion tube 1 deforms.

However, since the provision of these voids 5, 5a will impede fire transfer, the voids 5, 5a are covered with fire transfer connecting plates 3c, 3d.

A circular fixing hole 34 is bored on the base B side of the fire transfer connecting plate 3c, and a long attachment hole 35 is bored on the tip A side.

An elongated attachment hole 37 is bored on the base B side of the fire transfer connecting plate 3d, and a circular fixing hole 38 is bored on the tip A side.

Further, the fire spout 11 is covered with a ignition plate 3a, and the fire spout 11a is covered with a fire spout plate 3b to improve the circulation of the fire.

A circular fixing hole 32 is located approximately in the center of this ignition plate 3a.
A long hole is provided on the tip A side of the ignition plate 3a so as not to hinder the elongation when the ignition plate 3a expands and expands in length. 33 is bored.

Further, a circular fixing hole 39 is bored approximately in the center of the fire rotation plate 3b.

In addition, since the distance between the ignition plate 3a and the transfer plate 2 was conventionally small as shown in FIG.
The ignition plate 3a and the ignition plate 2 had expanded and abutted against each other and were deformed. For this reason, in this embodiment, relatively long notches 41 are formed on both sides of the ignition plate 3a to prevent the ignition plate 3a and the transfer plate 2 from colliding with each other even if they expand, thereby preventing deformation. There is.

Further, although the reason is not clear, if the cutout groove 64 is formed in the ignition hole 63, the speed at which the flame moves to the flame hole 10 at the time of ignition becomes faster.

Next, while referring to FIG. Explain how it is installed.

On the combustion tube 1, there are a main flame transfer plate 2a and a medium flame transfer plate 2.
b. The pilot transfer plates 2c are arranged in series while forming voids 5 and 5a.

Fire transfer connecting plates 3c and 3d are placed on the main fire transfer plate 2a, medium heat transfer plate 2b, and prefire transfer plate 2c so as to cover the gaps 5 and 5a.

Further, the ignition plate 3a is placed on the base part B side of the starter transfer plate 2a, and the fire rotation plate 3b is partially overlapped on the tip part A side of the starter transfer plate 2c. It is placed in the condition.

Then fixing hole 32, attachment hole 33 and fixing hole 2
3, fixing hole 34 and attachment hole 24, attachment hole 35 and attachment hole 25, fixing hole 26, attachment hole 37 and attachment hole 27,
Fixing hole 38 and attachment hole 28, fixing hole 39 and fixing hole 2
A screw 40 is inserted into each of the holes 12, 13, 14, 15, 1 formed under each hole.
6, 17, 18, and 19 are screwed to the main fire transfer plate 2a, medium heat transfer plate 2b, prefire transfer plate 2c, and ignition plate 3.
a, a fire rotation plate 3b, and fire transfer connecting plates 3c and 3d are attached to the combustion pipe 1.

In this embodiment, both ends of the fire transfer plate 2 are connected to the combustion tube 1.
It is in a fixed state. However, depending on the structure of the gas combustion burner device, the entire spark transfer plate 2 including both ends may be movably attached to the combustion tube 1. In short, it is sufficient that the fire transfer plates are divided into a required number of pieces, and that voids are formed between the fire transfer plates to prevent deformation of the fire transfer plates.

Note that a set screw (not shown), which is the same as the screw 40, is inserted into the other attachment hole 20 and screwed to the combustion tube 1, if necessary.

Therefore, even if the gas combustion burner is ignited and the combustion tube 1 expands, the gap 5 provided between the base flame transfer plate 2a, the intermediate flame transfer plate 2b, and the pilot flame transfer plate 2c,
5a, the expansion or contraction of the main fire transfer plate 2a, medium heat transfer plate 2b, and lead fire transfer plate 2c is absorbed, and the fire transfer plate 2 as a whole does not undergo deformation.

FIG. 5 is a perspective view of main parts showing another embodiment of the shape and mutual relationship of the fire transfer plate and the fire transfer connection plate.

The bottom plate 51 of the fire transfer plate 2c is provided with a step by bending the end of the bottom plate 51 upward, and a fire transfer connecting plate 53 is integrally formed to overlap the bottom plate 52 of the fire transfer plate 2b. . A long attachment hole 54 is bored in the fire transfer connecting plate 53. Furthermore, a circular fixing hole 55 is bored in the bottom plate 52. And fire transfer board 2
b and the fire transfer plate 2c, a gap 50 is provided between the fire transfer plate 2b and the fire transfer plate 2c, and the screws 56 are inserted into the attachment hole 54 and the fixing hole 55 to achieve the combustion shown in FIG. Attached to tube 1.

In this embodiment, the fire transfer connecting plate 53 is the fire transfer plate 2c.
Although it is formed integrally with the bottom plate 51 of the fire transfer plate 2c, there is no problem even if the fire transfer connecting plate 53 is prepared separately as shown in FIG. 1 and fixed to the fire transfer plate 2c by welding or the like.

Incidentally, in this embodiment, only the adjacent portions of the fire transfer plate 2c and the fire transfer plate 2b have been described, but the present invention is naturally applied to the space between the fire transfer plate 2a and the fire transfer plate 2b shown in FIG. Needless to say, if the transfer plate 2 is divided into many more pieces, the same applies to the spaces between the respective transfer plates.

In the case of this embodiment, the number of parts is small and the number of installation steps is also small, so the efficiency of the assembly work is high.

In addition, numeral 62 is an ignition device, 103 is a mixed gas production device that mixes gas and air to produce combustion gas, 102 is a blower pipe, 101 is a gas feeder pipe that sends the mixed gas, and 104 is a gas pipe.

(Effect of the invention) In this way, the fire transfer board is divided into the required number,
Since gaps are formed between each of the transfer plates, the shape of the combustion tube may change due to the influence of temperature differences such as expansion or contraction, or the transfer plate may expand before the combustion tube. Even if the fire transfer plate becomes distorted, these changes are absorbed by the voids, so the fire transfer plate does not deform and performs a sufficient fire transfer function.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is an exploded perspective view showing one embodiment of the present invention, FIG. 2 is a perspective view of the ignition part of a conventional gas combustion burner device, and FIG. 3 is a flame transfer diagram. A cross-sectional view showing the plate attached to the combustion tube,
FIG. 4 is a sectional view of the mixed gas production apparatus, and FIG. 5 is a perspective view of essential parts showing another embodiment of the shape and mutual relationship of the fire transfer plate and the fire transfer connection plate. 1: Combustion pipe, 2: Fire transfer plate, 3c, 3d: Fire transfer connection plate, 10: Flame port.

Claims (1)

[Scope of Claims] 1 (a) A fire transfer plate is attached to the flame ports arranged in a row in the combustion tube; (b) The fire transfer plate is divided into the required number; A gas combustion burner comprising the following: a gap is formed between the flame transfer plates, and (c) a flame transfer connecting plate is disposed in the gap between the flame transfer plates.