JPS6333086Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a combustor furnace tube covering device that is mainly composed of a combustion chamber used as a heating device, a blowing fan, an outer cylinder that covers these, and a fuel tank. It is.

When performing spot heating in a factory or the like, a combustor in which a combustion section B is mounted on the upper part of a fuel tank A is sometimes used, as shown in FIG. 1, for example.

In such a combustor, for example, as shown in FIG. 2, a furnace cylinder 1 forming a combustion chamber is covered with an outer cylinder 2,
By attaching the outer cylinder cone 3 to the tip of the outer cylinder 2, a heat-insulating cavity is formed around the outer periphery of the furnace cylinder 1, thereby improving safety for human bodies and the like.

Conventionally, the outer tube cone 3 is welded to the tip of the cylindrical outer tube 2, or both are fixed with screws to connect the outer tube 2 and the outer tube cone 3 without any gap. Was.

However, when the outer cylinder 2 and the outer cylinder cone 3 are fixed by welding, there is a problem that the outer cylinder 2 cannot be easily removed when inspecting or maintaining the furnace body 1. In addition, in the case where the outer cylinder 2 and the outer cylinder cone 3 are fixed with screws, it is necessary to arrange a plurality of screws at equal positions.
The ease of attaching and detaching the outer cylinder may deteriorate due to the relationship with other parts, and the ease of attaching and detaching the outer cylinder may deteriorate;
Since it is necessary to perform screw processing on the outer cylinder cone or outer cylinder, there is a drawback that the processing cost is high.

This invention was made in view of the above, and
By making the outer cylinder have a split structure and by engaging the outer cylinder and the outer cylinder cone mainly through the hooks and the engagement holes, there is no need for a large number of screws, etc. as in the conventional case, and the outer cylinder can be easily removed. An object of the present invention is to provide a furnace cylinder coating device in which the cylinder can be easily attached and detached as necessary.

The present invention will be explained in detail below based on the embodiments shown in FIGS. 3 to 5.

FIG. 3 shows a first embodiment of the present invention, in which an outer cylinder 2 that covers a furnace cylinder (not shown) at a predetermined interval is composed of two outer cylinder members 2a each having a semicircular cross section. , 2b, each member 2a, 2b.
An engagement hole 4 is formed at the center of the tip of each of the screws 4, and holes 6 for screws 5 are provided at both ends of the engagement hole 4.

Further, the rear end portion of each member 2a, 2b is provided with an insertion hole similarly to the front end portion.

On the other hand, an outer cylinder cone 3 attached to the tip of the outer cylinder 2
is provided with a pair of hooks 7 that engage in engagement with each of the engagement holes 4, and screw holes 8 are provided at symmetrical positions with respect to a straight line connecting the hooks 7.

Then, after the engagement holes 4 of each outer cylinder member 2a, 2b are thrust into engagement with the hook 7 of the outer cylinder cone 3, both side edges of both members 2a, 2b are overlapped and formed on both sides of the tip. By aligning the inserted insertion holes 6 with the screw holes 8, the screws 5
The outer tube cone 3 is attached to the tip of the outer tube 2 by tightening and fixing both ends of the ends of each member 2a, 2b to the screw holes 8 of the outer tube cone 3, respectively. Also, outer cylinder member 2
After aligning the insertion holes in which the rear ends of a and 2b are also formed, they are joined with screws or the like.

In the above embodiment, screw insertion holes 6 are provided on both sides of the tip ends of the two outer cylinder members 2a and 2b.
The outer cylinder cone 3 is attached to the outer cylinder 2 with a real screw 5, but as in the second embodiment shown in Fig. 4, one screw fixing part is replaced with a hook and an engaging hole. It is also possible to fix the screw in one place.

Further, as in the third embodiment shown in FIG. 5, hooks 7 are formed by cutting and raising a portion of the tips of the outer cylinder members 2a and 2b, and an engagement hole 4 is provided in the outer cylinder cone 3. Also good.

As explained above, according to the present invention, the outer cylinder is composed of two outer cylinder members having a semicircular cross section, and each member and the outer cylinder cone are engaged and held mainly by the hook and the engagement hole, and the screw is screwed. Since the two are fixed in an engaged state, the outer cylinder cone can be securely attached to the outer cylinder with one or two screws, instead of using a large number of screws as in the past. can. or,
Since the outer cylinder has a so-called split structure, it is easy to align the outer cylinder and the outer cylinder cone, and the outer cylinder can be partially removed, improving the ease of disassembling and assembling the outer cylinder. Inspection and maintainability of the furnace cylinder can be improved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of a combustor to which the present invention is applied, Fig. 2 is a side view of a conventional example, Fig. 3 is an exploded perspective view of the first embodiment of the present invention, and Fig. 4 is an exploded perspective view of the combustor according to the present invention. FIG. 5 is an exploded perspective view of the second embodiment of the present invention.
It is an exploded side view of an example. 1...Furnace cylinder, 2...Outer cylinder, 2a, 2b...Outer cylinder member, 3...Outer cylinder cone, 4...Engagement hole, 5...
Screw, 6... Screw insertion hole, 7... Hook, 8...
...screw hole.

Claims (1)

[Scope of utility model registration request] In a combustor in which a furnace cylinder forming a combustion chamber is covered with an arc-shaped outer cylinder and an outer cylinder cone is attached to the tip of the outer cylinder, the outer cylinder is constituted by a pair of outer cylinder members having a semicircular cross section. , characterized in that the end of each outer cylinder member and the outer cylinder cone are removably coupled to each other through a hook and an engagement hole, and a screw is provided for engaging and holding the hook and the engagement hole. Combustor tube coating equipment.