JPH08222059A - Insulator washing device - Google Patents

Abstract

PURPOSE: To safely and easily wash an insulator for supporting a high voltage transmission line by spraying water in atomized form from a nozzle to wash the insulator. CONSTITUTION: A worker climbs up a transmission line steel tower and holds the grip part 2 of a control bar 1. When the lever 8 of a reel 6 is operated, a valve 3 is opened, and the water in the bag 13 of a pump 12 is sent to a flexible pipe 4 by the contracting force of the bag 13, and force-fed in a slender nozzle hole 5c, and collided to a tapered surface 5b. The collided jet flow is guided by the tapered surface 5b, atomized while dispersed in sector, and blown out to the circumference. A nozzle 5 is approached to an insulator 15, and the atomized water is sprayed to the insulator 15 to wash the insulator 16. Since the atomized water consists of extremely fine particles, no electric short- circuit is caused. Even when a transmission line 16 is thus a hot line, the insulator 15 can be safely washed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulator cleaning apparatus for cleaning an insulator for supporting a high voltage power transmission line.

[0002]

2. Description of the Related Art An insulator provided in a high-voltage facility such as a power transmission line tower for supporting a high-voltage transmission line is apt to get dirty because it is outdoors. Therefore, the cleaning is performed regularly or as needed.

As a conventional method of cleaning the insulator, there is a method of cleaning with a brush (for example, Japanese Patent Publication No. 5-377).
19 publication). In this method, a brush with a special shape attached to the tip of the operating rod is applied to the insulator, and in that state the operating rod is operated while discharging the water sent from the pump toward the insulator. Brushing the insulator with a brush.

The brush method is widely used at present because it has a great cleaning effect and allows live work. However, when the length of the insulator connecting the insulators is short, especially when there is an arcing horn attached to the insulator, a short circuit may occur due to the brush, which is very dangerous. Therefore, in the case of the above-mentioned dangerous insulator, cleaning with a brush is not normally performed.

Another conventional method for cleaning the insulator is as follows:
There is a method of cleaning with a jet flow. In this method, a nozzle is attached to the tip of the operating rod, and water is pumped under high pressure from the pump to the nozzle to eject a jet stream to wash the insulator.

However, cleaning by jet flow requires a large-capacity large-sized pump because extremely high-pressure water must be pumped from the pump to the nozzle. Moreover, washing the insulators is often done in mountains where the power line tower is installed and where there is no power source, so a powerful engine for driving the pump is also required. That is, the conventional cleaning with a jet flow has a problem that a large amount of labor is required because heavy equipment such as a powerful pump and an engine must be transported to the mountains. Further, since a large amount of water is sprayed, the amount of water consumed is extremely large, and it is difficult to secure sufficient water in the mountains.

[0007]

Therefore, the present invention is
An object of the present invention is to provide a cleaning device for porcelain which can clean the porcelain with a very simple means and safely with a small amount of water.

[0008]

To this end, the present invention provides an operating rod 1, nozzles 5 and 17 attached to the tip of the operating rod 1, and a pump 12 for pumping water to the nozzles 5 and 17. And the nozzles 5 and 17 are adapted to blow out the water pumped from the pump 12 in the form of mist. Further, the nozzle 5 has a groove portion 5a from which the water pumped from the pump 12 is jetted, and a tapered surface 5b against which the water jetted to the groove portion 5a collides, and the water is diffused in a fan shape at the tapered surface 5b. I made it blow out in a mist. Further, the nozzle 17 is composed of a cover cylinder 18 having a nozzle hole 20 in the tip end surface thereof, and tops 19 and 22 which are housed inside the cover cylinder 18 and impart a rotational movement to the water pumped from the pump 12. The water is blown out in a mist form from the nozzle hole 20.

[0009]

According to the above construction, the small and simple pump 12 having low power can be used to spray the water from the nozzles 5 and 17 in the form of mist to wash the insulator 15. In this case, since the water is in a mist state, there is no possibility of short circuit even when the high-voltage power transmission line is live, and the insulator 15 can be washed safely. Moreover, since the water is ejected in a mist state, the consumption of water is extremely small, and the insulator 15 can be efficiently washed.

[0010]

Embodiments of the present invention will now be described with reference to the drawings. First, the first embodiment will be described. FIG. 1 is a side view of an insulator cleaning device, FIG. 2 is a sectional view of a nozzle provided in the insulator cleaning device, and FIG. 3 is a perspective view thereof. FIG.
In FIG. 1, reference numeral 1 denotes an operating rod, which is made of an insulating material such as FRP and has a grip 2 at its rear end.

A valve 3 is attached to the tip of the operating rod 1. A flexible pipe 4 is connected to the valve 3, and a nozzle 5 is attached to the tip of the flexible pipe 4. By bending the flexible pipe 4, the direction of the nozzle 5 can be changed. A reel 6 is provided near the grip 2 of the operating rod 1. The wire 7 led out from the reel 6 is banded on the operator 3a of the valve 3 (see also FIG. 2). When the lever 8 of the reel 6 is rotationally operated, the operating element 3a is pulled by the wire 7 and rotates to open / close the valve 3.

Next, the structure of the nozzle 5 will be described with reference to FIGS. The nozzle 5 is a rod-shaped body, and is formed by forming a groove portion 5a on the upper surface thereof and forming a tapered surface 5b on the tip end surface of the groove portion 5a. As shown in FIG. 2, the tapered surface 5b is slightly inclined forward, and
As shown in, the front shape is substantially semicircular. A thin nozzle hole 5c communicating with the groove 5a is formed inside the nozzle 5.

In FIG. 2, the flexible pipe 4 and the nozzle 5 are connected by a joint 9. Also valve 3
Is connected to a branch box 10. In FIG. 1, the branch box 10 is connected to a pump 12 via a tube 11. Inside the pump 12, a flexible bag 13 such as a rubber bag is provided. The pump 12 is held near the tip of the operating rod 1 by a band 14.

The branch box 10 has a small nozzle 10a.
Is provided. From this small nozzle 10a to the pump 12
Water is press-fitted into the bag 13 to be supplied. When water is pressed into the bag 13, the bag 13 expands due to its elasticity, and the contracting force of the bag 13 causes a force to pump water. That is, the pump 12 is a small and lightweight simple pump that does not require a power means such as a motor or an engine. In FIG. 1, 15 postcards,
Reference numeral 16 denotes a high-voltage power transmission line supported by the insulator 15, and in this example, an insulator string is formed by connecting three insulators 15.

The cleaning device for the insulator is constructed as described above, and its usage will be described below. In FIG. 1, a worker climbs to a transmission line tower (not shown)
Hold the grip 2. Then, when the lever 8 of the reel 6 is operated, the valve 3 is opened, the water in the bag 13 of the pump 12 is sent to the flexible pipe 4 by the contracting force of the bag 13, and is further pumped in the thin nozzle hole 5c in FIG. It is ejected as a jet flow into the groove portion 5a, goes straight as it is, and collides with the tapered surface 5b. In FIG. 4, P indicated by a chain line indicates a point where the jet flow collides with the tapered surface 5b.

The jet flow colliding with the tapered surface 5b is atomized while being guided by the tapered surface 5b and spreading in a fan shape,
It is blown out to the surroundings. In FIG. 3, a fan-shaped arrow indicates fog that spreads in a fan shape. Therefore, as shown in FIG. 1, the nozzle 5 is brought close to the insulator 15, and atomized water is sprayed on the insulator 15 to wash the insulator 15.

Since atomized water is extremely fine particles, electrical short circuit does not occur. Therefore, the insulator 15 can be safely washed even if the high-voltage power transmission line 16 is a live line. Moreover, since the water is atomized and sprayed onto the insulator 15, the water consumption is small. Further, since the pump 12 only needs to have a small power for atomizing water, it is small and simple, which does not require a power means such as a motor or an engine having a bag 13 such as a rubber bag as in the present embodiment. The pump 12 can be used.

Next, a second embodiment of the present invention will be described. Figure 5
FIG. 5A is a vertical sectional view of the nozzle of the second embodiment, and FIG. 5B is a horizontal sectional view thereof. The nozzle 17 connected to the tip of the flexible pipe 4 includes a cover cylinder 18 and a cover cylinder 18.
It consists of a piece 19 stored inside. A small nozzle hole 20 is opened in the front end surface of the cover cylinder 18. Further, two inclined grooves 21 are formed on the peripheral surface of the top 19. The configuration other than the nozzle 17 is the same as that of the first embodiment.

Therefore, the water pressure-fed from the pump 12 is jetted from the nozzle hole 20 through the inclined groove 21,
Since the rotary motion is imparted by the oblique groove 21 (see FIG.
(Refer to the arrow in (b)), as shown by the arrow A in FIG.

FIG. 6A is a front view of the top of the third embodiment of the present invention, and FIG. 6B is a side view of the same. This piece 22
Is housed inside the cover cylinder 18 described above. Top 2
Two through holes 23 are formed in the slope 2 with an inclination. Therefore, the water pumped from the pump 12 is
A rotary motion is given from 3 and jetted (see the arrow in FIG. 6A), and is jetted in a mist form from the nozzle hole 20 as in the case of FIG. 5A.

[0021]

As described above, according to the present invention, water is sprayed from the nozzles 5 and 17 in the form of mist to wash the insulator 15, so that there is no possibility of electrical short circuit.
The insulator 15 can be cleaned very safely.
Further, since the pump 12 only needs to have a small power for atomizing water, it is possible to use a small and lightweight simple pump 12 which does not require a motor or an engine, and consumes very little water. Therefore, it is extremely useful as a means for cleaning insulators, especially in sites where the foot is uncomfortable, such as in the mountains.

[Brief description of drawings]

FIG. 1 is a side view of an insulator cleaning device.

FIG. 2 is a sectional view of a nozzle of an insulator cleaning device.

FIG. 3 is a perspective view of a nozzle of an insulator cleaning device.

FIG. 4 is a front sectional view of a nozzle of an insulator cleaning device.

5A is a vertical cross-sectional view of a nozzle of an insulator cleaning apparatus. FIG. 5B is a cross-sectional view of a nozzle of an insulator cleaning apparatus.

FIG. 6A is a front view of a nozzle top of an insulator cleaning device. FIG. 6B is a side view of a nozzle top of an insulator cleaning device.

[Explanation of symbols]

 1 Operation Rod 3 Valve 4 Flexible Pipe 5 Nozzle 5a Groove 5b Tapered Surface 15 Insulator 16 High Voltage Transmission Line 17 Nozzle 18 Cover Cylinder 19,22 Top 20 Nozzle Hole

Claims (3)

[Claims] 1. A control rod 1, a nozzle 5, 17 attached to the tip of the control rod 1, and a pump 12 for pumping water to the nozzle 5, 17.
Is an apparatus for cleaning an insulator, characterized in that the water pumped from the pump 12 is blown out in a mist state. 2. The nozzle 5 has a groove portion 5a from which the water pumped from the pump 12 is jetted, and a taper surface 5b against which the water jetted to the groove portion 5a collides. 2. The cleaning device for insulators according to claim 1, wherein the cleaning device diffuses in a fan shape and blows out in a mist. 3. The nozzle 17 is provided with a nozzle hole 2 on the tip surface.
It is composed of a cover cylinder 18 having 0, and tops 19 and 22 housed in the cover cylinder 18 for imparting a rotational movement to the water pumped from the pump 12, and atomizing the water from the nozzle hole 20. 2. The cleaning device for insulators according to claim 1, wherein the cleaning device is used for cleaning.