JPS6191408A - Combustion cylinder - Google Patents

Abstract

PURPOSE:To improve combustion performance and life strength by a method wherein an outer cylinder containing an inner cylinder is formed so as to be divided in front and rear or right and left. CONSTITUTION:An outer cylinder 15 can device in front and rear by removing engaging screws 23, and can repair of change by the inner cylinder 11 is removed and taken off from a groove 18a. Connecting portions 14 is formed so as to be projected at the both ends of the inner cylinder 11 and the inner cylinder 11 is supported by the groove parts 18a, 18b provided on the both ends of the outer cylinder 15, thereby, the bad affection for the combustion due to entering contermination into the combustion place, is avoided and stable combustion is guaranteed. Accordingly, arbitrary structural material can arrange on the circumference of the inner cylinder 11 and the outer cylinder 15, further, the combustion condition and the red heat condition of a front perforated plate 13b can effect the most suitable condition. In the case the shape of the inner cylinder 11 and the outer cylinder 15 is flat, reinforcement material can append to them to prevent heat deformation, therefore, the long life may be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a combustion tube used in a combustor for gas, oil, etc.

Conventional technology This type of combustion tube has conventionally been used, for example, in Japanese Utility Model Publication No. 41-21966.
As shown in the publication, it had a configuration as shown in Figure 6. That is, the inner tube 1 made of a perforated plate and the outer tube 2 housing the same are independent cylindrical bodies, and are locked by a support rod 3 passing through both. During maintenance of the inner cylinder 1, the support rod 3 was pulled out and the inner cylinder 1 was pulled upward or downward from the outer cylinder 2.

Problems to be Solved by the Invention In the above conventional configuration, if soot adheres to the inner cylinder 1 due to abnormal combustion, etc., or deformation or corrosion of the inner cylinder 1 or outer cylinder 2 during long-term use occurs. Then, the support rod 3 had to be pulled out, the inner cylinder 1 had to be pulled out, and the parts had to be repaired or replaced. Therefore, in order to pull out the inner cylinder 1 from the outer cylinder 2, the maximum outer dimension of the inner cylinder 1, including the attached parts of the inner cylinder 1 and outer cylinder 2, must be smaller than the minimum internal dimension of the outer cylinder 2. There were configuration constraints. For this purpose, uniformity of the combustion state, complete combustion, or uniformity of the red-hot state of the inner cylinder 1,
The arrangement and configuration of various parts such as side wind members for ensuring and maintaining brightness are limited within the above-mentioned constraints, and due to these dimensional constraints, it is difficult to obtain sufficiently satisfactory performance. In addition, in particular, in the case of an inner cylinder 1 having a flat shape as shown in Fig. 6, although it is more easily deformed than an inner cylinder having a shape of an inner cylinder, a reinforcing structure can only be achieved within the above-mentioned constraints.
Another drawback was that it was difficult to obtain sufficient strength to withstand long-term use.

The combustion tube of the present invention eliminates the above-mentioned conventional restrictions and enables a configuration that can sufficiently cope with improved combustion performance and long life strength.

Means for Solving the Problems In order to solve the above-mentioned conventional problems, the combustion cylinder of the present invention is such that the outer cylinder housing the inner cylinder can be divided into front and rear or left and right sides.

Effect: By the above-mentioned means, the dimensional restrictions between the inner cylinder and the outer cylinder are released, and it is possible to create a configuration in which the outer dimensions of the inner cylinder are smaller than the minimum internal dimensions of the outer cylinder, and it is possible to perform maintenance work easily. It can provide a combustion tube.

Example Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

In FIG. 1, reference numeral 11 denotes an inner cylinder, which connects a rear perforated plate 12 provided with a large number of small diameter air holes 12a and a front perforated plate 13 provided with a large number of small diameter air holes 13a and large diameter air holes 13b at joints 1 at both ends.
It is configured by joining at 4. The inner cylinder 11 is surrounded by an outer cylinder 16, and the outer cylinder 16 is composed of a rear plate 16 and a front plate 17. Grooves 18a and 18b are provided on both sides of the rear plate 16 and the front plate 17, respectively, and accommodate the joint 14 of the inner cylinder 11.
Locking pieces 19 of the joint portion 14 are provided at the upper and lower ends of the groove portion 18a of No. 6. Further, a glass plate 20 is disposed in a portion of the front plate 17 facing the large-diameter air hole 13b. Here, a U-shaped fitting groove 21 is provided at one end of the rear plate 16, into which the side end of the front plate 17 is fitted, and the other end of the rear plate 16 and the front plate 17 are connected to each other. Stop holes 22a, 22
b is provided, and the structure is such that it is locked by a locking screw 23.

In the above configuration, the outer cylinder 15 can be divided into front and rear parts by removing the locking screw 23, and the inner cylinder 11 can be removed from the groove 18a and pulled out for repair or replacement.

Therefore, a partition plate 24a is provided on the inner surface of the outer cylinder 16 as shown in FIG.
, 24b, etc., and a wind control plate 25a on the outer surface of the inner cylinder 11.
, 25b, the inner cylinder 11 and outer cylinder 15 can be easily repaired and replaced even if the structure is such that they cannot be pulled out in the vertical direction. Therefore, any structural material can be arranged around the inner cylinder 11 and the outer cylinder 15, and it is possible to achieve a configuration that optimizes the combustion state and the red-hot state of the front perforated plate 13b without any restrictions. In addition, particularly when the inner tube 11 and the outer tube 16 have a flat shape, it is possible to optionally add a reinforcing member to prevent thermal deformation, which has a great effect on extending the life.

The means for locking the rear plate 16 and the front plate 17 is such that when one end is locked by a locking screw 23 as in this embodiment, the other end is inserted into the U-shaped fitting groove 21. In addition to this configuration, a configuration having a cutout and a cutout portion that fits into the cutout may be used, or a configuration in which the opening can be opened on one side while being connected by a hinge can also provide the same effect. Furthermore, if one outer surface of the inner cylinder 11 does not hinder vertical movement, U-shaped fitting grooves 21 may be provided at both ends of the rear plate 16 as shown in FIG. It is also possible to have a structure in which the front plate 17 is fitted together.
Alternatively, it can be separated by sliding the rear plate 16 in the vertical direction.

Further, as in the embodiment shown in FIG. 1, the joint parts 14 are made to protrude from both ends of the inner cylinder 11, and groove parts 18a and 18b are provided at both ends of the outer cylinder 16 to accommodate the joint parts 14, and the inner cylinder 11 is held here. With this configuration, there is no need to use a separate member such as the conventional support rod 3 for locking, and the adverse effect on combustion caused by introducing foreign matter into the combustion field inside the inner cylinder 11 can be avoided, resulting in stable combustion. can be further guaranteed.

Also, as shown in FIG. 4, the joint portion 14 and the groove portion 18a.

The locking screw 23 passing through the locking screw 18b locks both the inner cylinder 11 and the outer cylinder 16 without using a locking piece 19 or the like, and the diameter of the opening 14a of the joint 14 is the same as the outer diameter of the locking screw 23. If the inner cylinder 11 is made larger, the inner cylinder 11 will not be completely fixed to the outer cylinder 16, and when placed on the fire pan of the combustor, the lower end of the inner cylinder 11 can be brought into close contact with the fire pan due to its own weight, thereby preventing combustion. Stably effective.

Effects of the Invention As described above, the combustion tube of the present invention facilitates maintenance by being able to be divided into front and rear or left and right sides, and the combustion tube attached to the inner and outer tubes.

It is possible to remove restrictions on control members and reinforcing members against red heat or deformation, and maintain and ensure optimal combustion over a long life.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a combustion tube according to an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view thereof, FIGS. 3 and 4 are cross-sectional views of another embodiment of the present invention, and FIG. FIG. 6 is a cross-sectional view of a conventional combustion tube. 11... Inner cylinder, 12... Rear perforated plate, 1
3... Front perforated plate, 14a... Hole, 1
4...Joint part, 15...Outer cylinder, 16.
...... Rear, face plate, 17... Front plate, 18a
, 18b・Old・Groove portion, 21・・・・Fitting groove, 22
a. 22b... Locking hole, 23... Locking screw. Name of agent: Patent attorney Toshio Nakao and one other person Figure 1

Claims (6)

[Claims] (1) A combustion cylinder in which the outer cylinder housing the inner cylinder made of a perforated plate can be divided into front and rear or left and right sides. (2) The joint on one side of the outer cylinder is locked by a cut and a missing part that fits into it, or a U-shaped curling part and an insertion part that fits into it, or a hinge, and the other side is locked by a screw. A combustion tube according to claim 1 comprising: (3) The combustion cylinder according to claim 1, wherein both joint parts of the outer cylinder can be inserted horizontally by a combination of a U-shaped curling part and an insertion part that fits therein. (4) The combustion cylinder according to claim 1, 2, or 3, wherein the inner cylinder and the outer cylinder have a flat shape. (5) A pair of protrusions are provided on the outer periphery of the inner cylinder, and a groove for storing and holding the protrusions is also provided at the joint of the outer cylinder, according to any one of claims 1 to 3. combustion tube. (6) A patent claim in which an opening communicating with the outer cylinder groove and the inner cylinder protrusion is provided, a locking tool is passed through and locked, and the opening diameter of the projection is larger than the outer diameter of the locking tool. The combustion tube described in scope item 5.