JP3812454B2 - Equipment for cleaning the inner surface of cylindrical objects - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cleaning apparatus that performs high-pressure water cleaning of an inner surface of a cylindrical object.
[0002]
[Background]
Recently, there is an increasing need to clean the inner surface of large cylindrical objects (buildings and devices) such as large chimneys and incineration kilns.
In other words, internal pollutants such as dioxins, mercury, cadmium, lead, second fluorinated chromium, arsenic, and selenium adhere to and remain on the inner surfaces of these large chimneys and incineration kilns. The need to treat these environmental pollutants is screaming.
[0003]
[Problems to be solved by the invention]
By the way, during maintenance work of large chimneys and incineration kilns and when dismantling work, workers with high-pressure cleaning nozzles enter the inside of the cylinder and perform cleaning, but the workers themselves are contaminated. It must be protected from substance exposure, and high-pressure washing water droplets are scattered inside a relatively narrow cylindrical object, resulting in poor working conditions with poor visibility, limited working time, and a long construction period.
[0004]
An object of the present invention is to provide a cylindrical shape that can reliably clean the inner surface of the cylindrical object by an external operation, in view of the actual state of the conventional cylindrical inner surface cleaning operation as described above. The object is to obtain a cleaning device for the inside of an object.
[0005]
[Means for Solving the Problems]
In order to achieve this object, the present invention provides an apparatus main body positioned inside a cylindrical object and fed in the length direction thereof, and the apparatus main body is tilted in the length direction via a first hinge. The device main body is attached to the periphery of the apparatus main body and is urged in a standing direction by a first extender provided between the apparatus main body and the tip is always in contact with the inner surface of the cylindrical object. A plurality of holding legs in the radial direction to be maintained at the center of the apparatus, a revolving body supported rotatably with respect to the support cylinder of the apparatus main body, and an angle of the cylindrical object via the second hinge with respect to the revolving body A plurality of radial directions that are attached to the periphery of the swivel body so that it can be tilted in the direction and are urged in the standing direction by a second extender provided between the swivel body and the tip part can always contact the inner surface of the cylindrical object The nozzle support arm and the inner surface of the cylindrical object and the radiation Proposes a cleaning device of a tubular material inner surface and a plurality of high pressure water nozzles which are fixed near the tip end portion of each nozzle support arms in a state of being inclined with respect to direction [0006]
In the description of the preferred embodiments of the invention described below,
1) The apparatus main body is provided with a high-pressure water pipe that is located at the center of the apparatus body and is supplied with high-pressure washing water from the outside. A distribution pipe fixed to the center of the swivel body has a swivel joint for the high-pressure water pipe. A structure in which high-pressure washing water is distributed and supplied from the distribution pipe to the high-pressure water nozzle,
2) Structure in which the apparatus main body is provided with a joint capable of connecting a pulling means of a pulling / driving device located outside the cylindrical object,
3) A structure in which a joint capable of connecting a pulling means of a pulling / driving device located outside the cylindrical object is provided at the tip of the distribution pipe via a swivel joint is described.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the details of the embodiment of the present invention used for cleaning the large chimney E will be described with reference to the drawings.
FIG. 1 shows the cleaning device A of the present invention suspended from a suspension hook F of a crane boom B via a suspension wire W1, and the same cleaning device A suspended inside a large chimney E. Is sent in the length direction of the large chimney E by the vertical operation of the suspension hook F.
[0008]
2 to 4 show the details of the cleaning apparatus A, and four I bolts 11 (first joint means) to which a suspension wire W1 can be coupled to the upper surface of the apparatus main body 10 held at the center of the large chimney E. ) Is provided.
Further, as shown in FIG. 3, the base of four holding legs 21 extending radially toward the inner peripheral surface e of the large chimney E is connected to the first hinge 22 on the outer periphery of the apparatus main body 10 formed in a cylindrical shape. It can be mounted upside down. A first driven wheel 23 that is in rolling contact with the inner peripheral surface e is supported at the tip of the holding leg 21 that is equally distributed in the angular direction of the apparatus body 10.
[0009]
In the intermediate portion of each holding leg 21, the distal end portion of the first extender 32 that pivotally supports the base portion on the outer peripheral portion of the apparatus main body 10 is pin-joined and given the habit of extending by a built-in spring. The holding legs 21 tend to be rotated in one direction by the device 32 with the corresponding first hinge 22 as a fulcrum.
Therefore, the apparatus main body 10 of the cleaning apparatus A always has the inner peripheral surface e of the large chimney E by the expansion force of the holding legs 21 by the first extenders 32 and the contact of the first driven wheel 23 with the inner peripheral surface e. Held in the center. In addition, the structure of the holding leg 21 and the first extender 32 can provide a structure that can automatically cope with large chimneys E with different diameters, stepped openings, and tapered openings.
[0010]
The apparatus main body 10 described above has a support cylinder 11 continuously provided at a lower portion thereof, and is supported so that the driven frame 31 of the revolving body 30 can freely turn around the support cylinder 12. That is, a plurality of radial driven wheels 33 attached to the inner peripheral surface e of the driven frame 31 are in rolling contact with the cylindrical guide surface 12a of the support cylinder 12 manufactured in a substantially cylindrical shape, and face the longitudinal direction of the large chimney E. A plurality of thrust driven wheels 35 and 36 supported on the inner end surface of the driven frame 31 are in rolling contact with the pair of thrust receiving surfaces 12b and 12c, respectively.
[0011]
On the other hand, as shown in FIG. 4, the base portions of the nozzle support arms 41 are pivotally supported via the second hinges 39 at the distal ends of the four fixed arms 38 in the radial direction that are fixed to the outer peripheral surface of the revolving unit 30. The second driven wheel 43 supported at the tip of these nozzle support arms 41 faces the inner peripheral surface e of the large chimney E.
Further, high-pressure water nozzles 51 that can inject high-pressure washing water, which will be described later, are respectively fixed to portions near the tip portions of the nozzle support arms 41, and from the high-pressure water nozzles 51 that are inclined with respect to the radial direction of the large chimney E. The high pressure washing water is jetted in the direction of the arrow toward the inner peripheral surface e of the large chimney E.
[0012]
The outer peripheral part of the swivel body 30 and the intermediate part of each nozzle support arm 41 are respectively connected by a second extender 44 having a habit of extending by a built-in spring. Therefore, each nozzle support arm 41 tends to rotate around the second hinge 39.
Therefore, the inner peripheral surface of the large chimney E is always applied to the swivel body 30 of the cleaning device A by the expansion force of the nozzle support arm 41 by the second extenders 44 and the contact of the second driven wheel 43 with the inner peripheral surface e. At the same time, the structure of the nozzle support arm 41 and the second expander 44 can be used to automatically handle large chimneys E with different calibers, stepped openings, and tapered openings. can get.
[0013]
Returning to FIG. 2, a high-pressure water pipe 61 extending in the length direction of the large chimney E is fixed to the central portion of the apparatus main body 10, and a high-pressure hose (see FIG. High pressure washing water is supplied from (not shown).
A first wire joint 71 (second joint means) used for cleaning the incineration kiln is fixed to the upper end of the high pressure water pipe 61, and a first swivel joint 62 is attached to the lower end of the high pressure water pipe 61. A distribution pipe 64 that is fixed to the swivel body 30 is connected via the.
[0014]
A second wire joint 72 (second joint means) is connected to the lower end portion of the distribution pipe 64 via a second swivel joint 65, and when the incineration kiln is cleaned, the second wire joint 72 and the first wire joint 71 are connected. A pulling wire W2 (traction means) can be connected to the. Further, a cross pipe joint 67 is fixed to an intermediate portion of the distribution pipe 64, and the high pressure washing water introduced into the high pressure water pipe 61 through the high pressure hose 68 connected to the cross pipe joint 67 is the above-described high pressure water. Distributed to the nozzles 51.
[0015]
Since the cleaning device A according to the illustrated embodiment has the above-described structure, when cleaning the inner surface of the large chimney E, the cleaning device A is suspended from a suspension hook F as shown in FIG. Cleaning may be performed while lowering the cleaning device A.
In this case, since the first driven wheel 23 of the holding leg 21 is always elastically in contact with the inner peripheral surface e of the large chimney E, the apparatus main body 10 can be used regardless of changes in the diameter of the inner peripheral surface e or steps. It will be automatically positioned at the center of E.
[0016]
When the cleaning apparatus A is lowered, the position of the high-pressure water nozzle 51 from the inner peripheral surface e is always kept constant by the rolling contact of the second driven wheel 43 of the nozzle support arm 41, and The inner peripheral surface e of the large chimney E is cleaned by the high-pressure cleaning water that is ejected.
During the ejection cleaning, the ejection direction from these high-pressure water nozzles 51 is tilted, so that rotational torque is generated in the revolving body 30 by the reaction of the ejection from the high-pressure water nozzle 51, and the revolving body 30 automatically rotates. Therefore, as the cleaning device A is lowered, the entire inner peripheral surface e is cleaned.
[0017]
Moreover, the cleaning apparatus A of the illustrated embodiment can also be used for a horizontal kiln used as an incineration kiln for incineration treatment of combustible materials. In this case, the pulling wire W2 operated by an external winch or the like is connected to the first wire joint and the second wire joint, and the cleaning device A is sent in the length direction of the incineration kiln by the pulling wire W2.
[0018]
In the above-described embodiment, the case of the inner peripheral surface e having a circular cross section is illustrated and described. However, as shown in FIGS. 3 and 4, the inner peripheral surface e 1 having a polygonal cross section can function sufficiently.
[0019]
【The invention's effect】
As is clear from the above description, according to the present invention, it is not necessary for an operator to enter the inside, and not only can the inner surface of the cylindrical object be cleaned reliably by an external operation, but also the inner surface of the cylindrical object can be tapered or stepped. Even if there is, the entire inner surface can be cleaned without any obstacles.
Further, since the cleaning device of the present invention rotates the swivel body by utilizing the reaction at the time of jetting the high-pressure cleaning water, it does not require special power for the rotation of the high-pressure water nozzle and has a wide range of cylinders with different diameters. There is an effect that can be applied to the object.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of the use of a cleaning device according to the present invention when cleaning the inner surface of a chimney.
FIG. 2 is an overall cross-sectional view in the length direction of the cleaning device.
FIG. 3 is a top view of the cleaning apparatus.
FIG. 4 is a bottom view of the cleaning apparatus.
[Explanation of symbols]
A Cleaning device E Large chimney e Inner peripheral surface F Suspension hook 10 Device main body 12 Support cylinder 21 Holding leg 30 Revolving body 31 Follower frame 32 First extender 41 Nozzle support arm 44 Second extender 51 High pressure water nozzle 61 High pressure water pipe 62 First swivel joint 64 Distribution pipe 65 Second swivel joint 67 Cross joint 68 High pressure hose

Claims (4)

An apparatus main body which is positioned inside a cylindrical object and is sent in the length direction thereof, and is attached to the periphery of the apparatus main body so as to be tiltable in the length direction with respect to the apparatus main body via a first hinge A plurality of radial support legs that are urged in a standing direction by a first elongator provided between the main body and the distal end portion of the first extension device that is always in contact with the inner surface of the cylindrical object to keep the apparatus main body at the center of the cylindrical object And a revolving body supported rotatably with respect to the support cylinder of the apparatus main body, and around the revolving body so that the revolving body can be tilted up and down in the angular direction of the cylindrical object via a second hinge. A plurality of nozzle support arms in a radial direction that are urged in a standing direction by a second extender that is attached and provided between the swivel body and whose tip portion can always contact the inner surface of the cylindrical object, and the inner surface of the cylindrical object Close to each other and tilted with respect to the radial direction. Tubular product inside surface of the cleaning device, characterized in that it comprises a plurality of high pressure water nozzles which are fixed near the tip end portion of the support arm.   The apparatus main body is provided with a high-pressure water pipe that is located at the center of the apparatus main body and is supplied with high-pressure washing water from the outside. 2. The apparatus for cleaning the inner surface of a cylindrical object according to claim 1, wherein the cleaning device is connected and high-pressure cleaning water is distributed and supplied from the distribution pipe to the high-pressure water nozzle.   The tubular body according to any one of claims 1 and 2, wherein the apparatus main body is provided with a joint capable of connecting a pulling means of a pulling / driving device located outside the tubular object. Equipment for cleaning the inside of objects.   3. A cylindrical object according to claim 2, wherein a joint capable of connecting a traction means of a traction / drive device located outside the cylindrical object is provided at a tip of the distribution pipe via a swivel joint. Internal cleaning device.

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