JPH0222065Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, water pipes were filled with water to clean them and remove scale, etc. that had formed on the inner walls of the pipes.
Sand and ice blocks were placed in the pipes in advance, and large pressure was applied momentarily from one side to create a water hammer effect inside the pipes, causing the sand and ice blocks to travel and cleaning the pipes to remove scale.

Regarding the use of ice cubes, the
Disclosed in Publication No. 37461, this method involves running a large number of ice cubes that are smaller than the inner diameter of the water pipe, and in this method, each ice cube only partially contacts the circumferential surface of the pipe, so it is It is difficult to reach the entire surface of the water, and ice blocks may float in the water, reducing the ability to remove scale, making it impossible to completely remove scale.

Therefore, a large amount of ice blocks must be used, resulting in problems of poor working efficiency and high costs.

Therefore, the present invention is to make the ice cubes have approximately the same diameter as the inner diameter of the water pipe, to form the tip into a conical shape, and to provide a spiral concave groove on the rear circumferential surface so that the ice cube can run while rotating and sliding inside the water pipe. Provides an ice cleaning bullet with a peeling protrusion formed thereon, the bullet is inserted and loaded into a water pipe, the water pipe is used as a so-called gun barrel, and the bullet is fired into the barrel. The projector was introduced and fired, slid through the water pipe, and was able to effectively scrape off and remove scale while rotating and in complete contact with the scale adhering to the inner wall of the water pipe. An example of implementation will be described below.

The ice cleaning bullet 1 has approximately the same diameter as the inside diameter of the water pipe 2, has a conical tip to form a cannonball shape, and is ice-shaped so that a spiral groove 1a can be formed on the peripheral surface of the ice. A mold for the machine is made, water is poured into this mold, and the mold is cooled and solidified.A spiral stripping protrusion 1b is formed adjacent to this spiral groove 1a, and a water pipe The peeling protrusion 1b rotates and slides inside the peeling strip 1b.
The ice cleaning bullet 1 is placed in a magazine 4 provided at the rear of the water pipe 2, and fired by a pressurized firing device 6 provided at the rear end of the water pipe 2. The stripping protrusion 1b rotates and rubs the scale along the stripping line 1b at a high speed, and while it is running, the scale 5 adhering to the inner circumferential surface of the water pipe 2 is securely contacted and the scale is stripped off. Convex strip 1b
The spiral groove 1a is formed by scraping action and rotation.
It travels while effectively separating and removing particles using the vortex generated in the space.

Even if the cleaning bullet 1 stops at a curved pipe section, it will dissolve over time, so the next cleaning bullet 1 will smoothly rotate on the inner wall of the pipe as described above, without clogging the pipe at all. The sliding movement gradually scrapes off and removes the scale 5 that adheres to the curved pipe portion. The water pipe 2 is oriented in the direction of water flow, and has a magazine section 4 at its rear, a firing device 6 attached to the rear thereof, a compressor 8 for operating the firing device 6, and a water supply valve in front of the firing device 6. 9 are connected, and a drain valve 11 and a sewage drain valve 12 are connected to the front through a T-shaped pipe 10.
Install.

Since the present invention is constructed as described above, the water pipe 2
When washing and cleaning, first close the water supply valve 9, load the ice cleaning bullet 1 into the magazine section 4, and apply water or air pressure from the compressor 8 to the back of the cleaning bullet 1 through the firing device 6. The cleaning bullet 1 is fired into the water pipe 2, and the bullet is rotated and rubbed through the water pipe 2 at a high speed by the peeling protrusion 1b, so that it adheres to the inside of the pipe. The scale 5 is removed by the scraping action of the peeling protrusion 1b and the vortex generated in the spiral groove 1a space by rotation, and the cleaning bullet 1 is sequentially ejected into the water pipe 2 and made to slide. 1 rotates, the scale 5 in the water pipe 2 is effectively removed sequentially from the front, and the water pipe 2 can be completely washed and cleaned. After that, water pipe 2
The cleaning bullet 1 that traveled inside the water pipe 2 melts at the front and is drained from the sewage drain valve 12 along with the sewage 7' containing scale 5. The scale 5 is removed by the cleaning bullet 1 and cleaned.

As described above, the present invention has a conical shell-shaped tip with approximately the same diameter as the inner diameter of the water pipe, and a spiral concave groove on the rear circumferential surface to form a spiral stripping protrusion. When a bullet made of ice for cleaning is loaded into a water pipe and fired into the water pipe by applying pressure from behind, it shoots inside the water pipe as if it were a bullet sliding at great speed inside the barrel of a gun. Because the scale is completely in contact with the scale and is rotated by the peeling protrusion, the scraping effect of the peeling protrusion and rotation generates a vortex in the spiral groove space. This makes it possible to effectively remove scale within the pipe.

As a result, the workability is greatly improved, and it is possible to provide a cleaning bullet that can reliably and effectively remove scale and clean the inside of the water pipe, which is advantageous.

In addition, the cleaning bullets melt into water over time in the pipes and are drained together with the scale-containing wastewater, so there is no scale left inside the pipes and no foreign matter such as sand is removed. Since no injection is required, cleaning can be carried out extremely easily, dirty water can be easily drained, and working efficiency can be increased, and the cleaning and cleaning work can be carried out safely and with peace of mind.

[Brief explanation of the drawing]

Figure 1 is a side view of the ice cleaning bullet of the present invention, Figure 2
The figure is a side view showing the state of use, with a partial vertical cutaway. FIG. 3 is an enlarged longitudinal cross-sectional side view of the main part. In the figure, 1...Ice cleaning bullet, 1a...Spiral groove, 1b...Peeling protrusion, 2...Water pipe.

Claims (1)

[Scope of utility model registration request] For ice cleaning of water pipes, etc., the tip is formed into a conical shape with approximately the same diameter as the inner diameter of the water pipe, and a spiral concave groove is provided on the rear circumferential surface to form a spiral protrusion for peeling. bullet.