JPH10160154A - Movable cover apparatus for smokestack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely prevent the entry of rainwater by closing a top opening of an inner cylinder without greatly protruding upon non-use as in operation unterruption. SOLUTION: A drum 6 and a reel 9 are disposed, opposed putting a top opening 3a in an inner cylinder 3. A shutter like cover 11 is provided for horizontally opening and closing the top opening 3a in the inner cylinder 3. One end of the cover 11 is mounted on the drum 6 to be wound, and a cable 12 connected with the other end of the cover 11 is wound on the reel 9. A guide rail 23 is horizontally provided for engaging a width side of the cover when derived and developed from the drum 6 for guidance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chimney movable lid device used to discharge smoke discharged from refuse incinerated in a refuse incinerator to the atmosphere.

[0002]

2. Description of the Related Art At present, as a method of treating garbage such as municipal waste, a combustion method in which refuse is burned in a refuse incinerator is employed. They are released to the atmosphere through a chimney.

In the above-mentioned combustion system, as shown in FIGS. 4 (a) and 4 (b), an outer cylinder 2 and an upper part thereof which are erected inside the outer cylinder 2 and located above the outer cylinder 2 are schematically shown in FIGS. The flue 5 introduced into the outer cylinder 2 is provided with an inner cylinder 3 (in the figure, three cases are shown) at a protruding position and a round staircase 4 for maintenance and inspection. A chimney 1 having a configuration connected to the lower end of the inner cylinder 3 is used so that flue gas enters the inner cylinder 3 from the flue 5, passes through the inner cylinder 3, and is discharged to the atmosphere from the top opening 3 a of the inner cylinder 3. It is.

Until now, the chimney 1 has hardly been stopped, so there has been no problem of infiltration of rainwater or the like. However, in recent years, nighttime operation may be stopped, and operation is also performed during maintenance. I'm trying to pause,
Meanwhile, rainwater or the like may enter the inner cylinder 3.

[0005] When rainwater or the like enters the inner cylinder 3, rust is frequently generated on the inner surface of the inner cylinder 3, and the rust is scattered when the operation is restarted, which has a problem of adversely affecting the periphery of the site. If rust is generated on the inner surface of the inner cylinder 3, it is necessary to suspend the cleaning robot from the top to perform the cleaning work, and during that time, the operation must be stopped, and the cleaning work is repeatedly performed. The damage of the cylinder 3 is also accelerated, resulting in shortening the life of the chimney 1. Therefore, development of a technique to avoid this is desired.

As a countermeasure for preventing infiltration of rainwater or the like into the inner cylinder 3 of the chimney 1, an umbrella-shaped rain shield may be attached on the top of the inner cylinder 3.

[0007]

However, in the case of umbrella-like rain avoidance, if the height (the distance from the top of the inner cylinder) is high,
There is a problem that if the height is lowered so that the horizontal rain does not enter, the discharge resistance of the smoke exhaust increases. It is also conceivable to attach an umbrella-shaped rain avoider in a state where the height is increased and the umbrella is overhanged so that rain passing sideways does not enter and the resistance to emission of smoke does not increase. In the case of a rain-like avoidance, the structure becomes a fixed structure. Therefore, if the overhang is large, there is a problem that the structure is easily affected by a strong wind.

Therefore, the present invention is to prevent the top opening of the inner cylinder from being closed when not in use, such as when the operation is stopped, and to prevent the rainwater from infiltrating without protruding greatly when closed. An object of the present invention is to provide a movable lid device for a chimney.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a chimney comprising an outer cylinder and an inner cylinder installed inside the outer cylinder, a top of the inner cylinder being provided on the top of the inner cylinder. A shutter-shaped lid for opening and closing the top opening in the horizontal direction is arranged, and a drum is provided on one side of the top of the inner cylinder so that the lid can be wound and fed out, and further, the drum is wound on the drum. A guide rail is provided at the top of the inner cylinder to guide the width side portion of the lid when the extended lid is extended.

When it is necessary to close the top opening of the inner cylinder, the drum is driven to draw out a shutter-like lid wound around the drum and to extend it. At this time, the lid does not protrude greatly, and the width side is engaged with the guide rail, so that it is not lifted even by a strong wind.

Also, a reel is installed on the side opposite to the drum installed on the top of the inner cylinder, and the end of the rope wound on the reel is
Connected to the extended end of the lid wound on the drum,
In addition, if the reel and the drum are configured to be driven synchronously, the operation of extending the lid can be performed more smoothly.

Further, the top opening of the above-mentioned inner cylinder of a chimney comprising an outer cylinder and an inner cylinder installed inside the outer cylinder can be opened and closed by a flat lid, and the flat lid is raised and lowered. When the undulation guide for opening and closing is provided on one side of the top of the inner cylinder and provided with a cylinder for raising and lowering the lid and moving the lid up and down in an upright position, the lid is moved up and down. Since it can be raised and lowered only by itself, a compact design can be achieved.

Further, a top opening of the above-mentioned inner cylinder of a chimney comprising an outer cylinder and an inner cylinder installed inside the outer cylinder can be opened and closed by a flat lid, and the lid is attached to the top of the inner cylinder. The structure is simplified by installing a driving device attached to a horizontal support shaft provided on one side of the inner cylinder and rotating the horizontal support shaft to open and close the lid at the top of the inner cylinder. Can be.

[0014]

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

FIGS. 1A, 1B, 2C, and 2D show an embodiment of the present invention. As shown in FIGS. In the chimney 1 in which the inner cylinder 3 is arranged so that the top of the inner cylinder 3 projects above the outer cylinder 2, a gantry 7 is provided on one side of the top opening 3 a of the inner cylinder 3. Then, while installing the drum 6 on the gantry 7, the gantry 10 is installed on both sides on the opposite side of the top opening 3 a of the inner cylinder 3, and on the gantry 10,
A pair of reels 9 connected by a shaft 8 are arranged, and a shutter-like lid 11 for opening and closing the top opening 3 a of the inner cylinder 3 is wound around the drum 6.
1, the opening 3 a is closed in the horizontal direction, and a cable 12 connected to the leading end of the lid 11 on the feeding side is provided.
Are wound on the left and right reels 9 respectively.
Further, a sprocket 14 is attached to one end of the shaft 13 of the drum 6.
And a sprocket 15 at one end of the shaft 9 of the reel 8.
And sprockets 19 and 20 are attached to an output shaft 18 of a motor 17 on a gantry 16 provided on the outer side of the inner cylinder 3, and the sprockets 14 and 1 are attached.
9 and the endless chains 21 and 22 between the sprockets 15 and 20, respectively.
Is driven in synchronization with the drum 6 and the reel 9 via the chains 21 and 22. When the lid 11 is wound on the drum 6, the rope 12 is extended from the reel 9 and the top opening of the inner cylinder 3 is opened. 3 a is opened, the lid 11 is extended from the drum 6, and the rope 12 is wound around the reel 9 so that the top opening 3 b of the inner cylinder 3 is closed. The material of the lid 11 may be FR or a metal having excellent corrosion resistance and heat resistance, depending on conditions such as temperature.
Adopt P. In the figure, reference numeral 23 denotes a guide rail provided horizontally so as to receive a roller 24 attached at a required interval position on the width side surface of the lid 11 and to guide the opening and closing movement of the lid 11.
Reference numeral 5 denotes a winding storage section of the lid 11.

During normal operation, the shutter-shaped lid 11 is wound around the drum 6. As a result, as shown in FIGS. 1A and 1B, the top opening 3a of the inner cylinder 3 is opened.

On the other hand, when the operation is stopped, the lid 11 is extended so as to cover the top opening 3a of the inner cylinder 3. In this case, when the motor 17 is driven to rotate the sprockets 19 and 20, the rotation of the sprocket 19 is transmitted to the sprocket 14 via the chain 21, while the rotation of the sprocket 20 is transmitted to the sprocket 15 via the chain 22.
, The drum 6 and the reel 9 are rotated synchronously. As a result, at the same time as the lid 11 is unreeled from the drum 6, the cable 12 connected to the tip of the lid 11 is taken up on the reel 9, and therefore,
1 is smoothly pulled out and expanded horizontally, and FIG.
As shown in (c), the top opening 3a of the inner cylinder 3 is closed. As a result, it is possible to prevent rainwater from entering the inner cylinder 3, so that the generation of fundamental rust can be minimized, the amount of rust scattered and the frequency of use of the cleaning robot can be reduced. As a result, the life of the inner cylinder 3 can be extended.

In the above, the shutter-like lid 11 is
In the state where the top opening 3a of the inner cylinder 3 is opened, the top opening 3a of the inner cylinder 3 is not affected by the strong wind because it is wound on the drum 6, and even in the extended state where the top opening 3a of the inner cylinder 3 is closed. There is no large overhang, and since the width side portions are engaged and supported by the guide rails 24 via the rollers 24, there is no possibility of being blown by strong winds.

Next, FIGS. 2A, 2B and 2C show another embodiment of the present invention. In a chimney 1 having the same structure as that shown in FIG. The opening 3a is opened and closed by a flat lid 28. That is, a support bar 26 extending in the horizontal direction is fixed to the outer edge of one side of the top of the inner cylinder 3, and a stop bar 27 is fixed in parallel at a position slightly above the support bar 26 by a required amount to raise and lower the guide. A cylinder 29 for raising and lowering the lid 28 between the support bar 26 and the stop bar 27 of the raising and lowering guide 35 to open and close the opening 3a, and for raising and lowering the lid 28 Is installed outside the inner cylinder 3, the tip of the rod 29a of the cylinder 29 is connected to the lower end of the lid 28, the rod 29a of the cylinder 29 is extended, the lid 28 is lifted, and the The inner cylinder 3
The top opening 3a is closed. Reference numeral 30 denotes a storage box that is stored when the lid 28 is opened.

When the top opening 3a of the inner cylinder 3 is open, the lid 28 is stored in a position standing inside the storage box 30 at a position outside the inner cylinder 3. Top opening 3a of inner cylinder 3
When it is necessary to close the rod 2
9a is extended. Thereby, the lid 28
Is pushed up through the space between the support bar 26 and the stop bar 27, but since the lid 28 is arranged so as to lean against the support bar 26 side, when the lower end reaches the vicinity of the support bar 26, FIG. As shown by a two-dot chain line in FIG. 2, the tip side gradually falls down, as a result, as shown in FIG.
When the lower end reaches the uppermost part, it falls down completely and completely covers the top opening 3a of the inner cylinder 3. At this time, cylinder 2
Since the movement trajectory of the rod 29a of FIG. 9 is displaced from the position of the stop bar 27, a downward closing force with the stop bar 27 as a fulcrum is applied to the lid 28.

In the case of the configuration shown in FIGS. 2A, 2B, and 3C, the configuration can be made more compact than that shown in FIG.

Next, FIGS. 3A and 3B show still another embodiment of the present invention. In a chimney 1 having the same structure as that shown in FIG. 1, one side of the top of the inner cylinder 3 is shown. A support shaft 31 extending in the horizontal direction is disposed on the outer edge, and the support shaft 31 is rotatably supported by a bracket 38 projecting from the outer wall of the inner surface 3. The sprocket 33 is attached to one end of the support shaft 31 by attaching the outer peripheral edge of
A gantry 36 is provided on the outer wall of the inner cylinder 3, a sprocket 34 is attached to an output shaft of a motor 37 on the gantry 36, and an endless chain 32 is wound between the sprocket 34 and the sprocket 33. By transmitting the rotational force of the sprocket 34 to the sprocket 33 via the chain 32 by the drive of the 37 and rotating the lid 28 integrally with the support shaft 31, the lid 28 contacts and separates from the top opening 3 a of the inner cylinder 3. The top opening 3a can be opened and closed.

3 (a) and (b), the top opening 3a of the inner cylinder 3 can be opened and closed, and the structure can be simplified.

In the embodiment shown in FIGS. 1 (a), 1 (b), 1 (c), and 2 (d), the drum 6 and the reel 9 are driven synchronously in order to smoothly expand the shutter-like lid 11. Although only the drum 6 may be used, the lid may be formed in a bellows shape so as to expand and contract in the horizontal direction, or the lid may be formed in a fan shape to be horizontally extended. It goes without saying that various changes may be made without departing from the paper of the present invention.

[0025]

As described above, according to the chimney movable lid device of the present invention, the following excellent effects are exhibited. (1) At the top of the above-mentioned inner cylinder of a chimney consisting of an outer cylinder and an inner cylinder installed inside the outer cylinder, a shutter-shaped lid for horizontally opening and closing the top opening of the inner cylinder is arranged, And, on one side of the top of the inner cylinder, a drum is provided to wind up and unwind the lid, and furthermore, guides the width side of the lid when unwinding and expanding the lid wound on the drum. Since the guide rail is provided at the top of the inner cylinder, the top opening of the inner cylinder can be opened and closed by winding or unwinding the lid with the drum, and therefore, there is no need to protrude the lid greatly, In addition, since the lid engages the width side with the guide rail, the lid is not swung by strong wind, and even when the top opening of the inner cylinder is closed, it can stably prevent rainwater from entering. Can,
As a result, the frequency of use of the cleaning robot can be reduced, and the life of the inner cylinder can be extended. (2) A reel is installed on the side opposite to the drum installed on the top of the inner cylinder, and the end of the rope wound on the reel is connected to the extended end of the lid wound on the drum, and With the configuration in which the reel and the drum can be driven synchronously, the operation of extending the lid when closing the top opening of the inner cylinder can be performed more smoothly. (3) The top opening of the above-mentioned inner cylinder of the chimney composed of the outer cylinder and the inner cylinder installed inside the outer cylinder can be opened and closed by a flat lid, and the flat lid is opened and closed by opening and closing. The up-and-down guide at the time is provided on one side of the top of the inner cylinder, and is provided with a cylinder that raises and lowers the lid and moves up and down in a posture in which the lid is erected, thereby operating the lid up and down. The top opening of the inner cylinder can be opened and closed by simply raising and lowering the lid, and the device can be made more compact. (4) The top opening of the inner cylinder of the chimney consisting of an outer cylinder and an inner cylinder installed inside the outer cylinder can be opened and closed with a flat lid, and the lid is placed on one side of the inner cylinder top. A drive device that is attached to the horizontal support shaft provided at the top and that opens and closes the lid by rotating the horizontal support shaft is installed at the top of the inner cylinder. Can be easily opened and closed.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a chimney movable lid device according to the present invention, in which (a) is a schematic side view of the top of an inner cylinder, (b) is a plan view of (a), and (c) is ( (B) is a plan view in a state different from (b), and (d) is an AA enlarged arrow view of (c).

FIG. 2 shows another embodiment of the present invention.
Is a schematic side view of the top of the inner cylinder, (b) is a view taken in the direction of arrows BB in (a), and (c) is a side view in a state different from (a).

FIG. 3 shows still another embodiment of the present invention.
(A) is a schematic side view of the top of the inner cylinder, and (B) is a plan view of (A).

FIGS. 4A and 4B show an example of a chimney, where FIG. 4A is a schematic cut-away side view and FIG. 4B is a plan view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chimney 2 Outer cylinder 3 Inner cylinder 3a Top opening 6 Drum 9 Reel 11 Lid 12 Cable 28 Lid 29 Cylinder 31 Support shaft 35 Undulating guide 37 Motor (drive device)

Claims (4)

[Claims] 1. A shutter-shaped lid for horizontally opening and closing a top opening of an inner cylinder is disposed at the top of the inner cylinder of a chimney comprising an outer cylinder and an inner cylinder installed inside the outer cylinder. And, on one side of the top of the inner cylinder, a drum that winds up the lid and allows it to be unwound is installed, and further, when the lid wound up by the drum is unwound and extended, the width side portion of the lid is used. A movable cover device for a chimney, comprising a configuration in which a guide rail for guiding air is provided at the top of the inner cylinder. 2. A reel is installed on the side opposite to the drum installed on the top of the inner cylinder, and the end of a rope wound on the reel is connected to the distal end of the lid wound on the drum, 2. The chimney movable lid device according to claim 1, wherein the reel and the drum can be driven synchronously. 3. A chimney comprising an outer cylinder and an inner cylinder disposed inside the outer cylinder, wherein a top opening of the inner cylinder can be opened and closed by a flat lid, and the flat lid is raised and lowered. A movable chimney characterized by having a configuration in which an up-and-down guide for opening and closing is provided on one side of the top of the inner cylinder, and a cylinder is provided for raising and lowering the lid and moving the lid up and down in an upright position. Lid device. 4. A chimney comprising an outer cylinder and an inner cylinder disposed inside the outer cylinder, wherein a top opening of the inner cylinder can be opened and closed by a flat lid. A movable cover device for a chimney, wherein a driving device attached to a horizontal support shaft provided on one side and rotating the horizontal support shaft to open and close the lid is provided at the top of the inner cylinder.