JP2001123705A - Multi-stage smokestack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-stage smokestack for preventing the occurrence of harmful substances such as carbon monoxide, dioxin or the like by complete burning at a high temperature by increasing the amount of oxygen suction. SOLUTION: A spiral stripe groove 3 is formed in a longitudinal direction at the outer periphery in upper portion, a truncated conical short cylindrical smokestack 1 having a joint portion 7 is formed at the lower portion, a plurality of grouped smokestacks 5 are jointed together by sequentially stacking other smokestacks having the same size and the same shape are fitted and tightly adhered by the joint portions of the smokestacks 1 up to the near of the bottom end of the spiral stripe groove 3 of the smokestack, and the strip groove 3 is formed to an air duct.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-stage chimney, and more particularly to a multi-stage chimney suitable for constructing a stack of short frusto-conical short cylinders one after another.

[0002]

2. Description of the Related Art It has been known that a chimney is a vertically hollow structure made of masonry, steel or concrete, and which emits smoke from a building.

[0003]

The concrete chimneys described in the prior art include a straight chimney and a steel chimney. Regardless of the low chimney and the high chimney, the moment on the leeward side is caused by the wind pressure at the upper part. In the case of a chimney having a large-scale output due to pulling, a forced smoke exhaust fan and an induction fan must be used separately.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a truncated trough in which a spiral groove is formed upward and a joint is formed below. By sequentially stacking the chimneys of conical short cylinders, an air path is formed by grooves at each joint, and the smoke is reliably exhausted by the external air suction and energized. It is intended to provide a chimney.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, a spiral groove is formed in an outer periphery of an upper portion in a longitudinal direction and a spliced groove is formed in a lower portion. A chimney of a frusto-conical short cylindrical body having a portion is formed, and is fitted and adhered to the vicinity of the lower end of the spiral groove of the chimney by a joint portion of another chimney having the same size and shape as the chimney. By stacking sequentially, multiple chimney groups are joined,
The groove is formed in a wind path.

The invention according to claim 2 of the present invention is characterized in that the chimneys are screwed at predetermined intervals to the outer periphery of the joint portion.

According to a third aspect of the present invention, there is provided a multi-stage chimney according to the first or second aspect, wherein a pillar is attached to an outer side of the joined chimney.

[0008]

In the chimney, a spiral groove is formed in the longitudinal direction on the outer peripheral surface of an upper position of a frustoconical short cylinder, and a chimney of the same size and shape as the chimney is directed upward from below. By sequentially stacking and joining, it is possible to form the groove inside each joint portion so as to form an air path and adjust the height to an arbitrary height.

In addition, since it is screwed with a screw, for example, a bolt so as not to be broken from the joint portion and fall down, and furthermore, it can be supported by a support from the outside, so that a strong wind-resistant chimney is not provided. The combustion of the combustion products in the combustion chamber is completely burned by energizing the upward force of the smoke exhaust in the chimney by suction from the outside by the road.

[0010]

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

In each drawing, FIG. 1 is a front view of a chimney, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a partially cutaway explanatory view showing a state in which chimneys are stacked and joined in two stages, and FIG. It is explanatory drawing which shows the construction state of a chimney.

First, in FIGS. 1 and 2, substantially the upper half of a frusto-conical short cylindrical body is provided with ridges 2 at arbitrary intervals on the circumference of the outer peripheral surface, so that ridges 2 and ridges are provided. 2, the ridges 2 and the ridges 3 provided alternately are formed spirally in the longitudinal direction of the cylindrical body, and a substantially lower half is a joint portion 6,
The lower end edge of the joining portion 6 forms a chimney 1 which has a large diameter and spreads outward in a trumpet shape.

The connecting portion 6 of another chimney 1 of the same size and the same shape is fitted on the convex streak 2 and the groove 3 of the chimney 1. A plurality of chimney groups 5 are constructed. The position of the lower end edge 4 of the joint portion 6 of the next chimney 1 to be stacked when fitting and contacting is the first chimney 1
The diameter of the chimney 1 is gradually increased toward the bottom so that the lower end of the ridge 2 is slightly left, and the joining portion 6 of the other chimney 1 is formed on the ridge 2. When fitted and fitted, as shown in FIG. 3, the inner wall surface of the joint portion 6 closely contacts the convex shape 2, and the groove 3 is formed as a long spiral air path.

Here, it has been described that the groove 3 is formed in a spiral shape. However, it is conceivable that the groove 3 is provided on the outer peripheral surface of the substantially upper half of the chimney 1 in a straight line along the longitudinal direction. The longer the groove, the more the suction force is increased and the more effective.

Next, actual use of such an embodiment will be described. First, there are two types of chimneys: straight and reinforced. To form a high chimney, those with rebar are suitable for strength. Therefore, a combustion chamber (not shown)
In the joint portion 6 of the chimney group 5 configured so as to communicate with the inside, the ridge 2 of the first chimney 1 corresponding to the lowermost stage and the inner wall surface of the joint portion 6 of the chimney 1 joined next are in close contact with each other. A wind path is formed in the groove 3. Next, the position of the lower edge 4 of the joint portion 6 of the chimney 1 is joined, leaving a little lower end of the ridge 2 of the first chimney 1, and the lower edge 4 spreads outward in a trumpet shape. Since it is inclined as described above, it is possible to smoothly attract outside air to the groove 3.

As described above, the chimneys 1 having the same size and the same shape
Are sequentially stacked upward to join a plurality of chimneys 1, and the moment is increased by wind pressure so that the groove 3 at the joint 6 of each chimney 1 is formed.
Through the combustion chamber (not shown) to increase the amount of oxygen absorbed in the combustion chamber (not shown) to completely burn the combustion products, thereby preventing the generation of harmful substances due to unburned gas. This has the effect.

In the embodiment shown in FIG. 4, since the chimneys 1 are sequentially stacked as described with reference to FIGS. 1 to 3, the higher the height of the chimney 1, the higher the strength is required. If the chimney 1 is fastened to the joint 6 at predetermined intervals with screws 7 such as bolts from the outer peripheral surface and a plurality of chimney groups 5 are further supported by the columns 8, the possibility of collapse due to wind pressure can be prevented. It is to prevent.

[0018]

Since the present invention is configured as described above, it has the following effects.

According to the first aspect of the present invention, since the chimney is formed as a frustoconical short cylinder, a large number of chimneys can be manufactured at once at a low cost, so that the cost can be reduced. It can be provided and is easy to construct.

Further, the diameter of the chimney is gradually increased as it goes down, and a spiral groove is formed at the top, and the stack is sequentially stacked and joined so that the groove becomes an air passage (vent). Combined with the trumpet shape of the lower edge of the joint, the outside air is sent into the chimney, and the rising power of the flue gas is increased. This has the effect of preventing the generation of harmful substances such as carbon monoxide and dioxin for the human body. Further, since the combustion material is completely burned, there is an effect that a customer can easily construct a chimney of any height without requiring a series of tall chimneys as in the related art.

According to the second aspect of the present invention, since the joint portion is screwed, there is an effect that the chimney does not separate from the joint portion due to wind pressure.

According to the third aspect of the present invention, the chimney is supported by the pillars corresponding to the height of the chimney, so that the chimney can be firmly planted.

[Brief description of the drawings]

FIG. 1 is a front view of a chimney.

FIG. 2 is a plan view of FIG.

FIG. 3 is a partially cutaway explanatory view showing a state in which chimneys are stacked and joined in two stages.

FIG. 4 is an explanatory diagram showing a construction state of a chimney.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chimney 3 Groove 5 Chimney group 7 Joint 8 Screw stop 9 Prop

Claims (3)

[Claims] 1. A frusto-conical short cylindrical chimney having a longitudinally extending spiral groove on the outer periphery of an upper part and a joint part on a lower part thereof, wherein the spiral groove of the chimney is formed. Up to near the bottom of
A plurality of chimney groups are joined by stacking sequentially so as to be fitted and adhered by a joint portion of another chimney having the same size and the same shape as the chimney, and the groove is formed in an airway. And a multi-stage chimney. 2. The multi-stage chimney according to claim 1, wherein the chimney is screwed at a predetermined interval to an outer periphery of a joint portion of the joined chimney. 3. The multi-stage chimney according to claim 1, wherein a pillar is attached to the outside of the joined chimney.