JP4342679B2 - Flue cleaning device and flue cleaning method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flue cleaning apparatus and a flue cleaning method.
[0002]
[Prior art]
In recent years, various apparatuses have been proposed for removing dust such as chimneys that are becoming taller and black soot adhering to the flue. For example, there is a method in which a vertically movable gondola is suspended from above a chimney, and a cleaning worker gets on the gondola to scrape off dust. On the other hand, in consideration of the safety of workers, an unmanned cleaning device is also provided. For example, a cleaning tool such as a brush is provided around an up and down gondola, and the gondola moves up and down to provide a brush. There is a configuration that cleans the inside of the flue.
[0003]
[Problems to be solved by the invention]
In the cleaning device as described above, it is unavoidable to reduce the cleaning efficiency with a brush, and problems such as a reduction in work efficiency may occur due to uneven cleaning. SUMMARY OF THE INVENTION An object of the present invention is to provide a flue cleaning device that unmanned cleaning in the flue and has high work efficiency.
[0004]
[Means for solving the problems and actions / effects]
In order to solve the above problems, a flue cleaning device of the present invention is a flue cleaning device that removes deposits on the inner surface of the chimney of the chimney, the flue cleaning device being lowered and / or inside the chimney. In a suspended state designed to be lifted, from a cylindrical suspended body portion that is rotatably held around the chimney axis, and a cleaning means for cleaning by removing deposits on the inner surface of the flue The flexible member is configured such that the cleaning means has a spiral shape between the start side and the end side in a partial range in the circumferential direction on the outer peripheral surface of the suspended main body, and is disposed without a gap in the circumferential direction. A plurality of cleaning main body parts composed of a brush-like material are provided on the distal end side of the mounting support part attached to the outer peripheral surface of the suspended main body part, and this cleaning means is arranged around the outer peripheral surface of the suspended main body part. The outer peripheral portion of the cleaning main body portion of the cleaning means is arranged in a plurality of directions The cleaning body is formed so as to have a larger diameter than the inner diameter of the chimney, and is arranged so that the cleaning main body portions of the cleaning means adjacent to each other in the circumferential direction in the axial direction of the suspended main body portion face each other. When the suspended main body descends and / or ascends in the chimney, the brush-like material that contacts the flue inner surface is bent and deformed so that the flue inner surface is pressed against the cleaning main body. Rotational torque for generating a force to rotate the suspended body in the circumferential direction is generated .
[0005]
According to the above-described flue cleaning device, a plurality of cleaning means arranged on the outer peripheral surface of the suspended main body and contacting the inner surface of the flue are cleaned while scratching (paying) the inner surface of the flue as the suspended main body is raised and lowered. However, in the present invention, since the cleaning main body as the torque generating means is attached to the suspended main body, the cleaning means moves in the circumferential direction in addition to the lifting and lowering direction and scratches the flue inner surface. It will be. The movement in the up and down direction and the circumferential direction efficiently cleans the inner surface of the flue, and the rotation in the circumferential direction is less likely to cause uneven cleaning, greatly reducing the work time required for flue cleaning compared to conventional ones. It can be shortened.
[0006]
Such torque generating means is configured to abut against the inner surface of the flue, and when the suspended main body moves up and down, the abutting portion receives resistance from the inner surface of the flue, and rotational force is generated by the resistance force. It can be configured. Specifically, the torque generating means is formed with an inclined surface inclined at a predetermined angle with respect to the ascending / descending direction of the suspended body part, and the inclined surface receives resistance from the inner surface of the flue as the suspended body part is elevated. A rotational force may be generated.
[0007]
For example , when cleaning, the inclined surface moves up and down while scratching dust on the inner surface of the flue , but resistance is generated from the dust to the inclined surface, and the rotational force according to the inclination angle of the inclined surface is caused by the resistance. Therefore, the flue cleaning device rotates around the suspension shaft in the flue circumferential direction.
[0008]
By the rotation of the cleaning device accompanying such raising and lowering, the plurality of cleaning means arranged on the outer peripheral surface of the suspended main body efficiently clean the inner surface of the flue. In addition, since the structure rotates naturally with the lifting and lowering of the suspended body, there is no need to provide a special drive such as a motor for rotating the suspended body. Can be provided.
[0009]
In addition, as said suspension means, the method etc. which suspend to a suspension main body part with a crane etc. via a wire etc. can be illustrated, Moreover, the cleaning means means the tool which concerns on cleaning, for example, a brush ( are those composed of the brush) like material.
[0011]
Further, the cleaning means can be composed of an attachment support part attached to the suspended body part and a cleaning body part provided on the tip side of the attachment support part, and the cleaning body part can be used as a torque generating means. . In addition, the cleaning main-body part is comprised by a brush (brush) -like thing, for example. In this case, the said inclined surface can be formed in the cleaning main-body part, for example, and the said cleaning apparatus will rotate with the resistance concerning the inclined surface. The cleaning body provided on the tip of the mounting support slides in the circumferential direction on the flue inner surface due to rotation, so it is possible to effectively remove dust and the like adhering to the flue inner surface without unevenness. is there.
[0012]
The inclined surface formed by the cleaning main body (cleaning means) can be adjusted to an arbitrary angle. In this case, the rotation speed is adjusted by the angle. Further, it is preferable that the number of mounting support portions attached to the suspended main body portion is as large as possible. In this case, the area of the inclined surface formed by the cleaning main body portion provided at the tip thereof becomes large, so the inner surface of the flue This makes it easier to receive resistance from and improves the rotation efficiency.
[0013]
The cleaning main body portion is configured to include a flexible member such as a brush, and the outer peripheral portion of the cleaning main body portion formed by the flexible member forms a large-diameter portion whose diameter is larger than the inner diameter of the flue. The flexible member is bent and deformed to insert the flue cleaning device into the flue, and the cleaning main body is biased toward the inner surface of the flue based on the bending deformation. Can do. In this case, the inner surface of the flue is effectively scratched and cleaned by the biasing force of the cleaning main body generated by the deformation of the cleaning main body toward the inner surface of the flue, and the cleaning main body is removed from the inner surface of the flue. Since a large resistance force is received, a large torque is generated for rotating the suspended main body. As a result, a large circumferential scratching effect is generated on the inner surface of the flue, and the cleaning efficiency of the inner surface of the flue is further improved.
[0014]
Next, a load applying means for applying a certain load downward in the hanging direction to the hanging main body can be attached to the hanging main body. The suspended body part is suspended by a crane truck or the like via a suspension means such as a wire, but when the cleaning device is inserted into the chimney, the load applying means is provided on the suspended body part. , The position of the center of gravity is stable, and the insertion becomes easy. Further, by providing the load adding means, the suspended state of the suspended body portion during the cleaning operation is stabilized, and the lifting operation is performed smoothly.
[0015]
Moreover, the taper which becomes a taper can be formed in the suspending direction downward part of a suspending main-body part. Thus, by making the lower part of the suspended main body part tapered, the cleaning device can be more easily inserted into the chimney. Furthermore, the hanging main body can be provided with a light emitting means for emitting light from the lower side in the hanging direction of the hanging main body. The light emitted by the light emitting means is detected by, for example, a sensor (monitor) provided inside the chimney (including artificial visual detection), and the detected information is transmitted to an operator (driver) such as a crane truck. Thus, the light emitting means can serve as an insertion assisting means when the flue cleaning device is inserted into the chimney.
[0016]
On the other hand, a rotatable auxiliary roller can be provided on the outer peripheral surface of the suspended main body so as to be in sliding contact with the flue surface to be cleaned. The auxiliary roller is in sliding contact with the inner peripheral surface of the flue, so that the cleaning device can be smoothly moved up and down and inserted into the chimney, and the cleaning device can be prevented or suppressed from swinging left and right in the suspended state. It becomes.
[0017]
In the above configuration, the cleaning means can be detachably attached to the suspended main body. For example, a cleaning means having a cleaning main body such as a brush may be worn out by repeated cleaning operations and may become unusable. However, the cleaning means can be arbitrarily attached by detachably attaching to a suspended main body. It becomes possible to cope with the above-mentioned unusable situation. In addition, since the length of the mounting support portion can be changed in various ways by being detachable, the outer diameter of the flue cleaning device can be adapted to various chimneys having different flue inner diameters, for example. It becomes possible.
[0018]
On the other hand, the attachment support portion of the cleaning means can be configured to be extendable. In this case, it can be used for chimneys having several different inner diameters by expanding and contracting the mounting support portion corresponding to the inner diameter of the chimney such as a chimney. Examples of such a stretchable configuration include a method in which the mounting support portion is configured to be slidable in stages, or a method in which an elastic member or the like is provided on the mounting support portion.
[0019]
For example, if a part or all of the mounting support portion is made of an elastic member, even if one chimney has a different inner diameter in the height direction (such as a tapered tapered chimney), the elastic member can be elastically deformed. It is possible to effectively clean the inner surface of the flue. Specifically, the mounting support portion corresponding to the maximum inner diameter of the chimney is attached to the suspended main body portion, and at the position where the inner diameter of the chimney becomes smaller, the elastic member of the mounting support portion is elastically deformed to reduce the diameter of the cleaning means. Thus, the inner surface of the flue is effectively cleaned, and at the position of a large inner diameter, an elastic return force acts on the mounting support portion to clean the inner surface of the flue.
[0020]
The flue cleaning method of the present invention is a flue cleaning method for removing deposits on the inner surface of a chimney flue using the flue cleaning device according to claim 1, wherein the flue cleaning device Is inserted into the chimney in a suspended state, the flue cleaning device is moved up and down, and the brush-like material of the cleaning main body of the flue cleaning device is rotated while contacting the inner surface of the flue to attach the inner surface of the flue. It is characterized in that the kimono is removed , and by such a method, deposits such as dust on the inner surface of the chimney are easily and effectively removed.
[0021]
Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings.
FIG. 1 is an explanatory view showing a state in which the flue cleaning device of the present invention is suspended in the flue . The flue cleaning device 1 is a device for cleaning dirt, dust (attachment) and the like attached to the inner surface of the chimney such as the chimney 20 and is used in a state of being hung inside the chimney. Moreover, the flue cleaning apparatus 1 is comprised from the cylindrical suspension main-body part 2 hold | maintained in a suspended state inside a chimney, and the cleaning means 10 for cleaning a flue inner surface, as shown in FIG. The first wire 5 is suspended from the crane vehicle 25 so as to be wound up freely. Furthermore, as shown in FIG. 1, the suspended main body 2 of the flue cleaning device 1 is connected to the first wire 5 by a known bearing 4 provided with a thrust bearing or the like. It is hung freely through.
[0022]
The cleaning means 10 disposed on the outer peripheral surface of the cylindrical suspended main body 2 is composed of a cleaning main body 12 composed of a plurality of flexible brushes (flexible pressing portions) and the like, and the mounting support portion 11. It is set as the structure attached to the suspension main-body part 2 via. Each attachment support portion 11 is attached to the outer peripheral surface of the suspended main body portion 2 so that the attachment portion draws a spiral, and the cleaning main body portion 12 forms an inclined surface 12b along the spiral. Reference numeral 12b denotes a surface that intersects with the ascending / descending direction of the suspended main body 2 and is a surface inclined by a predetermined angle (an angle substantially the same as the spiral lead angle) with respect to the ascending / descending direction. Moreover, as shown in FIGS. 7 and 8, a plurality of cleaning means 10 are provided. As one of the cleaning means, for example, what is indicated by an arrow extending downward from the reference numeral 10 in the upper right of FIG. 7 is the start side and the end side in a partial range in the circumferential direction on the outer peripheral surface of the suspended main body 2. The space is spiral. That is, the cleaning main body portion 12 which is the start side mounted on the mounting support portion 11 extending outward from the inner upper side of the right contour line in the suspended main body portion 2 in FIG. 7 and the left contour line in the suspended main body portion 2. It forms a spiral between the cleaning main body portion 12 which is the final side attached to the mounting support portion 11 extending from the lower side to the outer side. In addition, a plurality of cleaning main body portions 12 made of a brush-like material that is a flexible member without gaps are arranged in the circumferential direction of the suspended main body portion 2.
[0023]
Moreover, the outer periphery diameter of the spiral which the cleaning means 10 forms, ie, the outer diameter of the flue cleaning apparatus 1, is made larger than the inner diameter of the flue to be cleaned. When the flue cleaning device 1 is inserted into the flue, the cleaning main body portion 12 is bent and deformed while being urged toward the flue inner surface, and the sliding surface 12a and the inclined surface 12b of the cleaning main body portion 12 are formed in the flue. It is pressed against the inner surface, and the dust on the inner surface of the flue is scratched and cleaned by the urging force . Moreover, the some cleaning means 10 is arrange | positioned so that the cleaning main-body part 12 of the cleaning means 10 adjacent to the circumferential direction in the axial direction of the suspension main-body part 2 may face each other (FIG. 7). reference).
[0024]
By the way, the inclined surface 12b of the cleaning means 10 formed in a spiral shape is cleaned by scratching dust on the inner surface of the flue as the flue cleaning device 1 moves up and down, but the inclined surface 12b is subjected to dust reaction force (vertical drag). ). Further, since the flexible cleaning main body portion 12 is biased toward the flue inner surface side, the friction between the sliding surface 12a of the cleaning main body portion 12 and the flue inner surface as the flue cleaning device 1 moves up and down. Power is generated. As shown in FIG. 3, due to the reaction force of the dust D and the frictional force with the flue inner surface, the resistance force F <b> 1 acts on the cleaning main body 12 in a direction different from the up-and-down direction to rotate the flue cleaning device 1. Is generated with a magnitude corresponding to the inclination angle of the cleaning main body 12. The direction of rotation of the suspended body 2 is opposite when the flue cleaning device 1 is raised and lowered. Moreover, as shown to the cross-sectional schematic diagram of Fig.4 (a), it is preferable that each cleaning main-body part 12 is arrange | positioned without the clearance gap between the adjacent cleaning main-body parts 12 effectively. Note that it is conceivable that the rotational force is generated not only from the inner surface of the flue, but also from the vertical drag on the inclined surface caused by the wind pressure during ascent and descent.
[0025]
As shown in FIG. 1 , the cleaning means 10 of the present embodiment is configured so that the cleaning main body 12 can come into contact with the inner peripheral surface of the chimney 20 to be cleaned while being urged. The length can be adjusted. As shown in the schematic cross-sectional view of FIG. 4 (a), the attachment support portion 11 is attached in a form that penetrates the cylindrical suspended body portion 2, and as shown in FIG. It is possible to adjust the amount, that is, the length of the attachment support portion 11 entering the suspended body portion 2. By adjusting the penetration amount, it is possible to adjust the length of the mounting support portion 11, that is, the maximum outer diameter of the flue cleaning device 1, and the cleaning main body portion 12 is effectively urged against the chimney inner diameter. It becomes possible to contact in the state.
[0026]
With the configuration as described above, the cleaning means 10 cleans dust and the like adhering to the inner surface of the flue 20 while moving up and down and rotating in the flue 20 in accordance with the driving of the crane 25 in a state of being in contact with the inner surface of the flue 20. . The suspended body 2 is formed in a cylindrical shape with a hollow cylinder so that the cleaned dust does not accumulate on the flue cleaning device 1.
[0027]
The cleaning means 10 is configured to be detachable by inserting / removing the mounting support portion 11 to / from the suspended main body portion 2, and fastening means such as screws (not shown) provided at the mounting portion of the suspended main body portion 2 during the cleaning operation. Is fixed in the insertion direction. In addition, although it is also possible to fix in an attaching part by welding, caulking, etc., it becomes a structure which cannot attach and detach the attachment support part 11 in this case.
[0028]
On the other hand, on the outer peripheral surface of the suspended main body 2, as shown in FIG. 1 , a rotatable auxiliary roller 6 that is in sliding contact with the flue surface of the chimney 20 to be cleaned is provided. The auxiliary roller 6 rotates by sliding contact with the flue surface, and serves as auxiliary means for smoothly moving the flue cleaning device 1 up and down and inserting it into the chimney. 4 are arranged above and below 2 (4 in the ascending / descending direction, the ascending side is the upper side and the descending side is the lower side).
[0029]
Next, a modified example of the cleaning means 10 will be described. FIG. 5 shows a structure in which the mounting support portion 11 is configured to be extendable and retractable. A rod 11b is slidably inserted into a cylindrical mounting side support portion 11a, and a fastening member such as a bolt provided on the mounting side support portion 11a. By 11c, the rod 11b can be locked at a predetermined slide position (insertion position). In this case, it is possible to adjust the length of the mounting support portion 11, that is, the outer diameter of the flue cleaning device 1 in accordance with various chimney inner diameters.
[0030]
Further, in the cleaning means 10 shown in FIG. 6, a part of the mounting support portion 11 is constituted by an elastic member 13. In other words, the elastic member 13 is interposed between the mounting support portion 11 and the cleaning main body portion 12. Yes. In this case, the elastic member 13 is constituted by a spring member, FIG. 6A is in an expanded state, and FIG. 6B is in a contracted state. The outer diameter (that is, the length of the mounting support portion 11) can be changed variously. Further, as shown in FIG. 3C, the outer diameter of the flue cleaning device 1 (the length of the mounting support portion 11) is also changed when the spring member 13 is bent. By introducing such an elastic member 13, the mounting support portion 11 expands or contracts or bends in response to a change in the chimney inner diameter, so that the inner surface of the flue can be slid and cleaned corresponding to various chimney inner diameters. Become.
[0031]
Next, a modification of the flue cleaning device 1 will be described. In the flue cleaning device of FIG. 7, the load adding means 14 is provided on the lower side of the hanging main body 2 in the hanging direction. This load adding means 14 is one in which a weight 16 is suspended from a suspended main body 2 via a wire 15 and defines the position of the center of gravity of the flue cleaning device 1 and stabilizes the suspended state. It is.
[0032]
Further, the flue cleaning device of FIG. 8 is formed by forming a taper in the lower part of the suspended main body 2. This taper part 17 is comprised by the cylindrical member continuous from the suspension main-body part 2, and the lower end part is a cylinder removal state. For example, as shown in FIG. 2, the flue cleaning device 1 is suspended from a crane vehicle 25 and inserted from above the chimney 20. In this case, the taper portion 17 can be easily inserted into the chimney. It is like that.
[0033]
Further, as shown in FIG. 9, four columnar members 18 are attached to the lower side of the suspended main body 2 in a state of hanging down diagonally, for example, and the lower ends of the four columnar members are attached to the suspended main body 2. It can also be fixed integrally by fixing means such as welding in the vicinity of the central axis of the taper, and a tapered form can be constituted by four columnar members. Also in this case, the taper form formed by the columnar member 18 assists the insertion of the flue cleaning device 1 into the chimney. In addition, a slidable roller 19 is attached in the vicinity of the intermediate portion in the axial direction of the columnar member 18, and the roller 19 is in sliding contact with the chimney insertion opening, so that the effect of assisting insertion of the flue cleaning device 1 into the chimney is obtained. The roller 19 can be further increased, and the roller 19 can be provided on the outer peripheral surface of a cylindrical taper portion 17 as shown in FIG.
[0034]
Furthermore, the flue cleaning apparatus shown in FIG. 10 is provided with a light (light emitting means) 30 on the lower side of the suspended main body 2. In the case of FIG. 10, a columnar member 18 similar to that of FIG. 9 is provided with a light 30. In this case, as shown in FIG. 10 (c), a sensor (which may be a monitor) 21 provided in the chimney 20 is provided. By sensing the light of the light 30 and transmitting the sensing information to the operator (driver) of the crane vehicle 25, it can be an aid in inserting the flue cleaning device into the chimney. In addition, the light of the light 30 may be confirmed by human eyes, and the confirmation information by the eyes may be transmitted to a driver or the like.
[0035]
When the flue, such as a chimney, is cleaned using the flue cleaning apparatus 1 as an embodiment of the present invention as described above, the rotation of the suspended main body 2 (ie, flue cleaning) as the flue cleaning apparatus 1 moves up and down. By the rotation of the apparatus, the cleaning means 10 efficiently cleans the inner circumferential surface of the flue, and the rotation makes it difficult to cause uneven cleaning, and the working time required for flue cleaning is greatly reduced. Moreover, since the configuration of the flue cleaning device is very simple, it is possible to greatly reduce the manufacturing cost of the device, and consequently the cleaning work cost.
[0036]
In the flue cleaning device 1 of FIG. 1, the spiral lead angle θ of the spirally formed cleaning means 10, that is, the inclined surface formed by the cleaning body 12 and the surface perpendicular to the ascending / descending direction. In order to improve the rotation efficiency of the suspended main body 2, the angle formed is, for example, within a range of 5 ° to 85 °, preferably 10 ° to 80 °, and more preferably about 30 ° to 60 °. .
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a state in which a flue cleaning device of the present invention is suspended in a flue .
FIG. 2 is an explanatory view showing an example of means for suspending the flue cleaning apparatus of the present invention.
FIG. 3 is an explanatory diagram for illustrating a resistance force applied to a cleaning main body .
4 is a schematic cross-sectional view of the flue cleaning apparatus of FIG. 1 and a schematic view showing an attachment mode of the cleaning means.
FIG. 5 is an overall schematic view showing a modified example of the cleaning means.
FIG. 6 is an overall schematic view showing a modified example of the cleaning means.
FIG. 7 is an overall side view showing an example of a flue cleaning device provided with a load adding means.
FIG. 8 is an overall side view showing an example of a flue cleaning device in which a lower portion is formed in a tapered shape.
FIG. 9 is a partial side view and a schematic cross-sectional view showing an example of a flue cleaning device in which a lower part is formed in a tapered shape.
FIGS. 10A and 10B are a partial side view and a cross-sectional schematic view showing an example of a flue cleaning apparatus provided with a light emitting means in the lower part, and an explanatory view showing its operation.

Claims (9)

A flue cleaning device for removing deposits on the inner surface of the chimney, wherein the flue cleaning device rotates around the chimney axis in a suspended state that is lowered and / or raised inside the chimney. It is composed of a cylindrical suspended body part that is held in a possible manner, and a cleaning means for removing and cleaning deposits on the inner surface of the flue,
The cleaning means is a brush that is a flexible member that is helically formed between the start side and the end side in a partial range in the circumferential direction on the outer peripheral surface of the suspended body, and is arranged without a gap in the circumferential direction. A plurality of cleaning main body parts formed of a shape are provided on the distal end side of the mounting support part attached to the outer peripheral surface of the suspended main body part,
A plurality of the cleaning means are arranged in the circumferential direction of the outer peripheral surface of the suspended main body portion, and the outer peripheral portion of the cleaning main body portion of the cleaning means is formed to be larger in diameter than the inner diameter of the chimney. In the axial direction, the cleaning main body portions of the cleaning means adjacent to each other in the circumferential direction are arranged so as to face each other,
When the suspended main body descends and / or ascends in the chimney, the brush-like material that contacts the flue inner surface is bent and deformed so that the flue inner surface is pressed against the cleaning main body. A flue cleaning device for generating a torque to generate a rotational torque for rotating the suspended main body in the circumferential direction . The cleaning main body has an inclined surface inclined at a predetermined angle with respect to the ascending / descending direction of the suspended main body, and the inclined surface receives a resistance from the inner surface of the flue as the suspended main body elevates / rotates. The flue cleaning device according to claim 1, wherein The flue cleaning apparatus according to claim 1 or 2, wherein the cleaning main body is detachably attached to the suspended main body via the attachment support . The mounting support is telescopic flue cleaning device according to any one of claims 1 to 3. Wherein the suspension main body, smoke according to any one of 4 to no claim 1 attached load adding means for adding a constant load to the suspension downward relative to the hanging under the main body portion Road cleaning device. Downward lower part hanging of the hanging body portion, flue cleaning device according to any one of claims 1 taper that tapers are formed 5. The flue cleaning device according to any one of claims 1 to 6 , wherein the hanging main body is provided with light emitting means for emitting light from a lower side in the hanging direction of the hanging main body . The flue cleaning device according to any one of claims 1 to 7, wherein an outer peripheral surface of the suspended main body portion is provided with a rotatable auxiliary roller that is in sliding contact with an inner surface of the flue to be cleaned. . A flue cleaning method for removing deposits on a flue inner surface of a chimney using the flue cleaning device according to claim 1,
Inserting the flue cleaning device in a suspended state in the chimney, raising and lowering the flue cleaning device, rotating the brush-like material of the cleaning body portion of the flue cleaning device while contacting the flue inner surface, A method for cleaning a flue characterized by removing deposits on the inner surface of the flue.

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