JPS63243597A - Automatic cleaning device movable between orthogonal crossing rails for open rack type carburetor - Google Patents

Abstract

PURPOSE:To make it possible to clean parallel panel surfaces in a series of automatic works by constructing the first rail parallel to the panels and the second rail crossing orthogonal to the first rail, between the parallel carburetor panels. CONSTITUTION:By driving an air motor 6 while rotating a rotary brush 18, a sprocket 9 is rotated through transmission members such as a bevel gear 11, and a chain belt 10 is also rotated. By the movement of the chain belt 10, an elevating head 16 is moved up and down through a connecting rod 20. At the same time, by the rotation of a sprocket 8, a wheel 21 is rotated, a truck 4 advances along a rail 3, and is transferred to run on the second rail 35 through a moving truck 37 at the end of the first rail 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic cleaning device for an open rack type vaporizer, which is a panel body in which heat transfer tubes are arranged side by side in a curtain shape.

[Conventional technology]

For example, in an open rack type vaporizer for liquefied gas such as LNG, a trough 2 is provided toward the middle of the upper side of a panel 1, which is the vaporizer, as shown in FIG. 9, and water overflows from the trough 2. It is then poured onto the panel surface. This flow of water down the panel surface is done to enhance the heat transfer effect of the vaporizer against ultra-low temperature liquids of minus 100 degrees.For example, seawater or fresh water that has been stored for a long time is used. In this case, the panel surface becomes dirty with dirt, slime, microorganisms, etc. contained in the water and requires periodic cleaning.

Conventionally, such stains on the surface of the panel 1 are removed by stopping the operation of the vaporizer, installing a scaffold between the panels 1.1 arranged in parallel as shown in FIG. It was being removed.

[Problem that the invention seeks to solve]

However, with this manual cleaning method, the operation of the vaporizer must be stopped for a long period of time (at least one week) for cleaning work, and scaffolding is always required because the work is done at height. It takes time to assemble and dismantle the panel 1, and there is also the risk of damage to the surface of the panel 1 due to collision of scaffolding materials.

Furthermore, the distance between the panels 1 and 1 that are arranged in parallel is 0.5 m to 0.6 m.
Since the area is narrow, with a width of about 1.5 m, there is not enough work space, resulting in poor work efficiency and easy cleaning residue.

In addition, since cleaning is performed after the area has become sufficiently dirty, the heat exchange efficiency decreases until cleaning is performed, and the sewage film is also more likely to be disturbed by the dirt.

An object of the present invention is to eliminate the disadvantages of the conventional example and provide an automatic cleaning device movable between orthogonal rails of an open rack type vaporizer, which can clean parallel panel surfaces by a series of automated operations without manual intervention. There is a particular thing.

[Means for solving problems]

In order to achieve the above object, the present invention provides a first rail installed between parallel carburetor panels in parallel with the panels, and a cleaning machine having a rotating brush in contact with the panel surface at the bottom thereof. A running bogie that slides on a first rail, a second rail constructed in a direction perpendicular to the panels beside the ends of the parallel panels, a short rail for extending the first rail, and an intake part for the running bogie. The gist of the system is that it consists of a moving trolley that has a second rail and slides on a second rail.

[Effect]

According to the present invention, the cleaning machine scrubs the panel surface with the tip of a rotating brush, and uses running water from a trough to wash the panel surface while moving along the panel surface using a traveling cart that slides on the first rail. . In this way, if the two opposing sides of the parallel panels can be cleaned simultaneously, the traveling truck is housed together with the cleaning machine from the first rail into the moving truck. This moving trolley slides on the second rail and moves to the end of the first rail between the next panels, and at that point, the moving trolley is transferred to the first rail and cleaning of a new panel surface begins. Then, repeat the same steps to automatically clean all panel surfaces.

〔Example〕

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

FIG. 1 is a side view showing an embodiment of an automatic cleaning device movable between orthogonal rails of an open rack type vaporizer according to the present invention.
A first rail 35 with a cross section I] type is constructed in parallel with the panel 1. 1. A second panel provided immediately beside the edge of the panel 1,1. Shows the rail.

A rectangular cylindrical guide frame 5 is hung from the bottom of a self-propelled carriage 4 using the lower flange of the rail 3 as a guide, and an air motor 6 is housed inside the guide frame 5 as shown in FIG.

Similarly, a support post 7 is placed vertically in parallel with the guide frame 5 from the traveling truck 4, and a sprocket and kerato 8, 9 are attached between the middle and lower end of the support post 7, and a chain belt 10 is attached to these. rolled around. Further, the lower sprocket 9 and the output shaft of the air mocro are connected to a rotating shaft 14 which has a bevel gear 11 on the output shaft side, a bevel gear 12 that meshes with the bevel gear 12 at one end, and a spur gear 13 at the other end.
The sprocket 9 meshes with the spur gear 13 and is connected via the spur gear 15 coaxial with the sprocket 9.

On the other hand, as shown in FIG. 3, nylon rotary brushes 18, which are rotatably driven by an air motor 17, which is the main part of the cleaning machine, are mounted on the left and right sides of a cylindrical lifting head 16 that is loosely fitted around the outer periphery of the guide frame 5. A total of 2 stations are installed in parallel. 1 in the diagram
Reference numeral 9 denotes a guide roller that is provided on the elevating head 16 and rolls around the outer periphery of the guide frame 5. To such lifting/lowering・7
One end of a connecting frame 20 serving as a link was pivotally attached to the side of the door 16, and the other end of the connecting frame 2o was pivotally attached to the chain belt 10.

The traveling cart 4 may have its own drive motor for driving, but in this embodiment, an air motor 6 is used.

FIG. 4 is a longitudinal sectional side view of a portion of the traveling carriage 4, in which wheels 21 are provided inward from a housing 4a having a U-shaped cross section, and are brought into contact with the upper surface of the lower flange of the rail 3.

On the other hand, a splot 23 is provided coaxially with the splot 8 provided in the middle of the support post 7, and this is connected to the chain belt 2.
A worm gear 27 is formed in the middle of the rotating shaft 25, and a gear 28a that meshes with the worm gear 27 is provided in the center. Ghee 2 at the end of the rotating shaft
9 is provided, and this gear 29 is meshed with a gear portion 21a having teeth cut in the flange of the wheel 21.

In the figure, reference numeral 30 denotes a sprocket l-131 for tensioning the chain belt 24, which is installed horizontally at the upper end of the housing 4a.
a guide roller that comes into contact with the side surface of the upper flange of the rail 3;
Reference numeral 32 denotes a guide roller which is pressed against the lower surface of the rail 3 by the elasticity of the spring (not shown (not shown)), and these guide rollers 31, . 32 is the running trolley 4
It has the role of preventing looseness.

The rails 35 are, for example, C-shaped channel members facing each other with their webs facing outward, as shown in FIG.

In the figure, reference numeral 37 denotes a moving trolley suspended from the rail 35 in a mole rail type with wheels 36, and as shown in FIGS. 6 and 7, an air motor 3 for rotating the wheels 36 is mounted on the upper surface of the cart.
8 and a reducer 39 connected thereto are provided, and both sides are surrounded by hoods 40 to form a gate shape with an open center.

The short rail 33 for extending the first rail 3 is attached to the center of the moving trolley 37, and the area around it is a blank space to form the intake portion 34 for the traveling trolley 4. Furthermore, on the trolley 37,
The connecting air cylinder 41 is mounted so as to protrude slightly toward the rail 3 than the rail 33, and on the other hand, a locking tray 42 is provided on the upper surface of the rail 3 into which the rond end of the cylinder 41 is inserted.
will be established.

In the figure, 43 is a guide roller that prevents the bogie 37 from wobbling by sandwiching the lower flange of one side member of the rail 35 from both sides, and 44 is a guide roller located under the other side member of the rail 35 at each position corresponding to the rail 3 in the orthogonal direction. The provided projecting piece-like latching piece 45 is provided on the upper surface of the truck 37, and the arm 45c provided with the buffer 45b is attached to the latching piece 4 by the air cylinder 45a.
This is a stopper that protrudes laterally so as to engage with 4.

Next, the usage and operation will be explained. Seawater is flowed from the trough 2 onto the vaporizer panel 1, and the surface of the panel 1 is covered with a film of flowing water.

First, assuming that the traveling truck 4 is on the first rail 3, the guide frame 5 hanging from the traveling truck 4 is connected to the panels 1 and 1.
The brush tip of a rotating brush 18 made of nylon of a lifting head 16 that is mounted so as to hold the guide frame 5 is located in the center between the panels 1 and 1 parallel to the surface of the panel 1, and is in contact with the surface of the panels 1, 1.

In this state, if the air motor 17 is started and the rotary brush 18 is rotated, the brush tip will rub the surface of the panel, and cleaning will be performed using the flowing water.

On the other hand, if the air motor 6 is driven while rotating the rotary brush 18 in this way, the bevel gear 11→bevel gear 12-
The sprocket 9 rotates via a transmission member: + rotating shaft 14 - spur gear 13 -> spur gear 15 -, and the chain belt 10 between the sprockets 8 and 9 also rotates. By this movement of the chain bell 10, the lifting head 16 is also pushed up along the guide frame 5 via the connecting ring 20.
When the shaft-attached portion of the connecting ring 20 to the chain belt 10 passes over the upper sprocket 8, the heel 16 descends according to the chain belt 10.

In this way, the rotating brush 18 moves up and down along the guide frame 5 while rotating itself, but the rotation of the sprocket 8 is roughly controlled by the sprocket 23 - chain belt 24 - sprocket 26 - rotating shaft 25 - worm gear 2.
7-gear 28a, and the wheel 21 rotates. As a result, the trolley 4 advances T and tl along the rail 3, and the rotating brush 18 moves on the surface of the panel 1 drawing a locus as shown in FIG. 8 to thoroughly clean the entire surface.

The first rail 3 on which the traveling carriage 4 is located has a moving carriage 37 at its end, a short extension rail 33 inside the carriage 37 is joined to the first rail 3, and a connecting air cylinder on the side of the carriage 37 is connected to the first rail 3. The rond end of 41 is inserted into the locking tray 42 on the rail 3 side and fixed. The trolley 4 is housed in the intake portion 34 of the moving trolley 37 together with the entire cleaning machine such as the lower guide frame 5 and the support post 7.

The moving carriage 37 that has taken up the traveling carriage 4 in this manner retracts the arm 45c of the stopper 45 and removes the shock absorber 45b from the hooking piece 44. Then, when the motor 38 is started, the wheels 36 rotate via the reducer 39 and roll on the rails 35.

As soon as the moving trolley 37 starts moving, it stops at the stopper 45.
The first arm 45c between the next panel 1 and 1 is projected.
When the carriage 37 travels to the seventh position on the rail 3, the shock absorber 45b hits the latch piece 44 and the carriage 37 stops.

Then, extend the connecting air cylinder 41 and connect the rail 33.
and the rail 3 are fixedly connected, and the traveling cart 4 is operated to move the cleaning machine and the cleaning machine to the rail 3 side.

Thereafter, in the same manner, the facing surfaces between the next panels 1.1 are cleaned with a rotating brush.

〔Effect of the invention〕

As described above, the automatic cleaning device of the present invention, which is movable between the orthogonal rails of the oven rack type vaporizer, enters the narrow spaces between many parallel panels and automatically cleans the panel surfaces without human intervention. In this case, there is no need to stop the operation of the vaporizer (cleaning work can be done while it is in operation).In addition, since it does not require human hands, there is no need for scaffolding, etc., and it is safe.
In addition, since cleaning can be started at any time, it can be cleaned frequently without leaving it for a long period of time, and there is no accumulation of dirt and a state in which heat exchange efficiency is reduced or the sewage film becomes easily disturbed. be.

Also, once you finish cleaning between one panel, the cleaning parts are automatically transferred to the next panel.
All processes can be performed automatically and continuously.

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of the open rack type carburetor of the present invention that can be moved between orthogonal rails, Fig. 2 is a partially cutaway front view of the main parts of the same, and Fig. 3 is Fig. 2. 4 is a vertical sectional side view of the traveling truck portion, FIG. 5 is a side view of the moving truck portion, FIG. 6 is a front view of the same, FIG. 7 is a plan view of the same, and FIG. The figure is an explanatory diagram showing the trajectory of the rotating brush.
Figure 9 is a partial perspective view of an open rack type vaporizer;
The figure is an explanatory diagram showing a conventional example. 1... Panel 2... Trough 3... First rail 4... Traveling trolley 4a... Housing 5... Guide frame 6... Air motor 7... Support post 8,9 River Sprocket 10... Chain belt 11.12... Bevel gear 13.15... Spur gear 14... Rotating shaft 16... Lifting head 1
7... Air motor 18... Rotating brush 19...
・Guide roller 20...Connection ring 21...Wheel 21a...Gear l 23.26 River sprocket 24...Chain bell l-25, 28...Rotating shaft 27...Worm gear 28a, 29.・Gear 3
0...Tension sprocket 31, 32...Guide roller 33...Short rail for extension 34...Traveling trolley intake section 35...Second rail 36...Wheel 37... Moving trolley 38...Air motor 39...Reducer
40...Hood 41...Connecting air cylinder 42...Latching saucer 43...Guide roller 44
...Latching piece 45...Stopper 45a...
・Air cylinder 45b...Shock absorber 45c...Arm

Claims (1)

[Claims] a first rail installed between parallel carburetor panels so as to be parallel to the panels; and a running trolley that slides on the first rail and is provided with a cleaning machine having a rotating brush that contacts the panel surface at the bottom. , a second rail installed in a direction perpendicular to the panels beside the ends of the panels in parallel, a short rail for extending the first rail, and a take-in part for the running bogie, and slides on the second rail. An automatic cleaning device that is movable between orthogonal rails of an open rack type vaporizer, characterized in that it is comprised of a moving trolley that moves between the orthogonal rails of an open rack type vaporizer.