JPH0412384Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a cleaner device useful for cleaning horizontal cylindrical shells that form the outer shell of heat exchangers installed in oil refining plants, chemical plants, etc. In particular, the present invention relates to a cleaner device used for cleaning foreign matter adhering to the inner wall surface of the cylindrical shell.

In the general structure of this type of heat exchanger,
It has a structure in which a tube bundle, which serves as a heat medium passage, is mounted along the axis in the interior of a shell whose one end face is closed and the opposite end face is covered with a lid.

However, when the heat exchanger is operated for a certain period of time, foreign substances such as scale and dust adhere to the inner wall of the shell and impede heat conduction.
It is necessary to clean the shell for maintenance.

(Prior art) Conventionally, when cleaning the inner wall surface of a shell, the lid on the end face of the shell is opened, the tube bundle is pulled out from the shell, and the shell is cleaned manually with the shell empty. Specifically, the foreign matter was scraped off using an appropriate cleaning tool, and the foreign matter powder was swept out of the shell.

(Problem that the invention aims to solve) However, such cleaning methods that rely on manual labor are not only laborious and inefficient, but also require a large amount of effort, and also cause problems during work. There were problems such as poor environmental hygiene.

Therefore, an object of the present invention is to provide a cleaner device in which most of the cleaning work is mechanized and the inner wall surface of the shell can be efficiently cleaned.

(Means for solving the problem) In order to achieve the object, the configuration of the present invention includes a hollow center shaft inserted from the opening side end face of the horizontal cylindrical shell onto the center line of the shell, and a center shaft of the horizontal cylindrical shell. It is a rotary plate attached to the tip, the boss part of which is loosely fitted to the center shaft, and movable arms that are biased to swing in the centrifugal direction are pivoted at multiple locations on the circumference of the rotary plate. a rotating plate, a peripheral brush attached to the tip of the movable arm, whose peripheral edge is pressed against the inner peripheral surface of the shell, and an outer end surface side of the rotating plate. an end face brush which is provided so as to be rotatable with the rotary plate and which is pressed against the rear end face of the shell; a drive motor fixedly installed in the middle of the center shaft; a rotational transmission mechanism that interlocks and transmits the rotation of the output shaft to the rotary plate and the peripheral brush;
The structure includes a blower that sucks air flowing into the shaft from a hollow opening at the tip of the center shaft to the outside from an opening at the base end of the shaft.

(Function) With this configuration, the operation of scraping off foreign matter during cleaning work is performed by the circumferential brush that rotates while being driven by the motor, and the operation of discharging foreign matter powder to the outside is performed by the blower. Since this is done by the suction flow of air that is sucked into the center shaft and flows through the inner hole of the center shaft, the burden on the operator is reduced to just sliding the cleaner device.

(Example) Hereinafter, the configuration of the present invention will be specifically described based on an example shown in FIGS. 1 to 4.

The cleaner device of the embodiment has a longitudinal hollow center shaft 1 that can move freely but does not rotate.
, a shaft support mechanism fixed perpendicularly to the middle of the shaft 1, a rotating brush mechanism 2 attached to the tip of the shaft 1, and a shaft support mechanism attached to the center shaft 1 adjacent to the brush mechanism 2. A fixed drive mechanism 3, a rotary transmission mechanism 4 (FIG. 4) interposed between the drive mechanism 3 and the brush mechanism 2, and a rotary transmission mechanism 4 (FIG. 4) installed on the ground and connected to the base end of the center shaft 1. In the illustrated state when the device is in use, the center shaft 1 is manually inserted into the shell S from the end opening 7 of the shell S placed on the ground. The formation mode of each part will be explained below.

(a) Center shaft 1 The tip of the hollow center shaft 1 is cut off and opens into the interior of the shell S, and the shaft 1
A bellows tube 8 is attached to the base end of the shaft 1, and the base end opening of the shaft 1 communicates with the suction side of the blower 5.

(b) Shaft support mechanism This mechanism consists of a V-shaped support leg 9 fixed at one location in the middle of the center shaft 1, and a cross-shaped guide overhang fixed at two locations near the tip of the shaft 1. 1
0, and a caster is attached to each of the extending ends of the support leg 9 and the guide extension 10, and the support leg 9 is assembled so that its leg length can be expanded and contracted, and the guide extension 10 is formed by a caster. The caster of the projection 10 is biased to project by the elasticity of a compression coil spring 11 (FIG. 2).

Thus, the support leg 9 functions to support the deflection due to the weight of the center shaft 1, and
The guide projection 10 functions to guide the tip of the shaft 1 and position the tip.

(c) Brush mechanism 2 This mechanism connects the boss portion 12a via a bearing.
is a rotary plate 12 which is pivotally attached to the tip of the shaft 1.
and a dust shoot 14 consisting of two inner and outer disks integrated with the rotating plate 12 via a plurality of connecting bolts 13, and the center of the dust shoot 14 is located at the tip of the shaft 1. In addition to constricting the air passage in opposition to the opening, the outer end surface of the dust chute 14 is provided with a rear end surface 15 of the shell S.
An end face brush 16 made of a wire brush is attached to scrape off foreign matter adhering to the surface.

Further, an idler shaft 17 is supported at a plurality of locations on the circumferential line of the rotating plate 12 (however, only one location is shown), and this idler shaft 17
A movable arm 18 extending diagonally in the centrifugal direction is pivotally attached to the side of the rotary plate 12 with a loose fit, and the movable arm 18 is supported by the elastic force of an extension spring 19 whose one end is fixed to the rotary plate 12. The intermediate portion of the arm is guided and held in an arc-shaped guide groove 12b bored in the rotary plate 12.

Furthermore, a rotating shaft 20a of a circumferential brush 20 made of a wire brush is supported at the tip of the movable arm 18, and this circumferential brush 20 is supported by a spring 1.
It is adapted to slide against the inner circumferential surface of the shell S by the elastic bias 9.

(d) Drive mechanism 3 This mechanism 3 includes a drive motor 21, such as an electric motor or an air motor, fixed to the center shaft 1;
It is formed by wiring, piping, etc. (not shown) that supplies a power source such as electric current or high-pressure air to the drive motor 21 from the outside.

(e) Rotation transmission mechanism This mechanism consists of an output pulley 22 that is pivotally attached to the output shaft of the drive motor 21, and a boss portion 12 of the rotary plate 12.
A passive pulley 23 is pivoted and fixed to the inner end of a.
A fixed pulley 25 is externally fitted onto the boss portion 12a via a bearing and is fixed to the center shaft 1 via a retainer 24, and an inner and outer pulley 25 is attached to and fixed to the idler shaft 17 of the rotary plate 12. Two interlocking pulleys 26 and an intermediate pulley 27, a passive pulley 28 which is pivoted and fixed to the rotating shaft 20a of the peripheral brush 20, and three transmission belts 29, which will be described below.
30 and 31.

First, the rotation of the output pulley 22 drives the passive pulley 23 by the belt 29, thereby rotating the rotary plate 12 and the dust chute 14.

Next, as the rotating plate 12 rotates, the idler shaft 1
7 rotates, the interlocking pulley 26
The fixed pulley 25 rotates the idler shaft 17.

The accompanying rotation of the intermediate pulley 27 is caused by the belt 3
1 drives the passive pulley 28 , thereby rotating the circumferential brush 20 , and thus the circumferential brush 20 rotates in conjunction with the rotary plate 12 .

Note that due to the rotation of the intermediate pulley 27 mentioned above,
In the case where the driven pulley 28 is driven via the belt 31, these may be driven by a plurality of gears (not shown).

(f) Blower 5 and dust reservoir 6 The air sucked from the inner hole of the center shaft 1 by the blower 5 is sent to the dust reservoir 6, which includes a filter (not shown) and a filter (not shown).
A dust receptacle is installed inside to receive foreign particles captured by the filter, and the purified air is discharged to the outside.

Next, the operation and operation of the cleaner device according to the embodiment configured as described above will be described.

First, the tip of the center shaft 1 is pushed onto the center line of the empty shell S, and then the shaft 1 is slid in the depth direction at a slow speed while the drive motor 21 and blower 5 are started. If so,
The foreign matter adhering to the inner peripheral surface of the shell S is scraped off by the peripheral brush 20, and the foreign material powder peeled off from the inner peripheral surface is mixed with the air flow sucked into the inner hole of the shaft 1 and sent to the center of the dust shoot 14. As a result, the shaft 1
As it slides, the inner circumferential surface is gradually purified.

Finally, the end brush 16
5, since the flocking is spreading due to centrifugal force, the foreign matter adhering to the rear end face 15 is scraped off by the end face brush 16, and the foreign matter powder is transferred to the dust shoot 14 in the same manner as described above. Thereby, the inner end surface 15 is purified.

However, the foreign powder transported to the dust reservoir 6 is
After accumulating in the dust tray, it is taken out and disposed of in a timely manner.

As described above, in the cleaner device of the embodiment, most of the cleaning work is mechanized by power, and the foreign powder peeled off from the inner wall of the shell S is discharged and disposed of without polluting the environment.

(Effects of the invention) As described above, according to the cleaner device according to the invention, a rotating brush mechanism is provided at the tip of the hollow center shaft, and the foreign powder scraped off by the brush mechanism is removed from the inside of the shaft. Since the structure is configured so that the airflow sucked outside through the holes is used to discharge and dispose of the air, the efficiency of the cleaning work is increased and labor is saved, which improves the operability and environmental friendliness of the cleaner device. It has the effect of improving

Further, according to the present invention, the inner circumferential surface of the cylindrical shell can be cleaned by the circumferential brush 20 and the inner circumferential surface of the cylindrical shell can be cleaned by the end brush 16. Since the driving is performed by a drive motor 21 fixedly installed in the middle of the center shaft 1 via a rotational transmission mechanism, the inner peripheral surface and the inner surface of the cylindrical shell can be moved by a relatively simple and easy-to-handle mechanism. Surfaces can be cleaned efficiently.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a cleaner device showing an embodiment of the present invention, FIG. 2 is an enlarged detailed view of the main part of FIG. 1, and FIG. 3 is a front view taken along the - line in FIG. 4 is a schematic perspective view of the rotational transmission mechanism of FIG. 2. FIG. S... Ciel, 1... Center shaft, 4...
Rotation transmission mechanism, 5... blower, 7... end opening,
DESCRIPTION OF SYMBOLS 12... Rotating plate, 12a... Boss portion, 16... End face brush, 18... Movable arm, 20... Circumferential brush, 21... Drive motor.

Claims (1)

[Claims for Utility Model Registration] A hollow center shaft and a rotary plate attached to the tip of the center shaft, the boss portion of which is pivotally attached to the center shaft with a loose fit, and a rotary plate having movable arms pivoted in a centrifugal direction at multiple locations; a circumferential brush attached to the tip of the movable arm; An end brush provided to be able to freely rotate with the plate, a drive motor fixedly installed in the middle of the center shaft, and rotation of the output shaft of the drive motor interlocked with the rotary plate and the peripheral brush. and a blower that sucks air flowing into the shaft from a hollow opening at the tip of the center shaft to the outside from an opening at the base end of the shaft.