JPS6082181A - Method and device for washing inside of piping - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and a cleaning device for cleaning the inside of piping, and is particularly effective in cleaning the inside of the piping from dirt caused by mold and other deposits in the piping of water supply and hot water supply equipment.

What's more, it can be cleaned and removed efficiently in a short time.
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Conventionally, compressed and filtered air was used to remove rust and other dirt from inside pipes such as water supply pipes along with ice blocks.

Since the pressurized air collects in branch pipes in the piping and creates air pockets, the air pockets act as a cushion and buffer the pressure force caused by the compression. Since the empty packages were discharged into the piping (knee air) to remove dirt, there was a phenomenon in which the initially pressurized air became a slag flow, making it impossible to obtain a pressure propagation velocity. There were some differences in the size of the effective clause length, excluding the earwax.

Furthermore, in the ice supply method, ice cubes are
Put it in a thin short tube like ym.

The work was done by connecting to this short pipe.ζ
It took a lot of time and was inefficient.

If the C2 ice cubes are press-fitted into the pipe from the beginning, the rust and other deposits inside the pipe will be thoroughly removed, but
Instead, a phenomenon occurred in which the inside of the pipe was damaged.

In other words, before cleaning, inside the pipes, dirt such as rust and deposits is attached to the inner wall (=adhered to the inner wall), but if you try to remove this dirt from the beginning with ice blocks, the dirt itself, especially the faucet and water supply. Rust that develops due to battery action due to contact between dissimilar metals, such as steel pipes for zinc, etc., is rough and scrapes the inner wall of the pipe, which has become a factor in shortening the life of the pipe.

Therefore, this invention was created in view of the above-mentioned 6C, and the gist of the invention is a method for cleaning inside piping.

In the water! 2. Food additives (1110) are mixed with impurities that are harmless to humans and animals to create rough ice, and inside the pipes filled with liquid. A series of steps are repeated as necessary to generate a water hammer action, and then to release the air in the pipe.1, the ice block is discharged from inside the pipe, and the same water hammer action as described above is produced. After that, repeat the series of steps as necessary until the 9 air in the pipes is removed.

Each floor of pills, etc.
C1 must be carried out at the same time, and the gist of the cleaning device is to use the ice making device, the compressed air discharge device, and the compressed air C from the compressed nine air discharge device to make ice produced by the ice making device C2. A discharge pipe line formed to directly discharge compressed air into the pipe and discharge compressed air as appropriate pressure waves into the pipe;
1. After discharging the ice and compressed air, the air in the piping is removed (2. It is known that the ice making device was constructed of the ice making device and a control device for controlling the closing of the valves provided in the q!

The present invention will be described in detail below with reference to one drawing.

That is, the reference numeral 1 shown in FIG. 1 is an ice making device.

The ice making device 1 is cooled by carbon dioxide gas from a built-in carbon dioxide gas pump 2 or an external carbon dioxide gas pump 3.

Inside (:) is a removable ice cube tray 4, and a lid 5 that can be opened and closed is formed on the soil.

An air inlet 6 and an iceberg lower are formed near the bottom of the ice making device 1.

and? Kuiri 06 has compressed air discharge device 8 to (7)
[FM? fi discharge pipe 9 is connected,
The iceberg sword and the one that discharges 9 energy to the outside and the one that branches into 12.

This ejecting sword is connected to a ejecting force gradient joint 10. Furthermore,...1C of the compressed air discharge device 8 and the portion 11 of the compressed air discharge device 8.
A reverse IE valve 11 is installed so that the compressed air flows only in one direction to the ice making device, and a two-bypass pipe 12 is provided between the check valve 11 and the air discharge device 8 to ensure one main flow. The compression nine-tube discharge pipe 9 is provided with a π-magnetic valve 13 and a pressure switch 14, and the bypass pipe 12, which is a tributary, is also provided with a pressure switch 15. In addition, between the branched place and the wall air [6], the compressed air is connected to the ice making equipment @
A branch pressure pipe 25 is provided to feed the ice from above to the inside of the ice cube, thereby facilitating the discharge of ice from the water outlet 01 provided at the bottom.

On the other hand, the water outlet lower pipe forms a Tt line toward the piping 20, and branches this pipe into two (2-C) to connect the discharge pipe 1G to the -man7 piping 20, which transmits external force to the outside. A discharge pipe 17 is used to discharge 9 gases, etc., and a discharge pipe 16 (the second is a manual on-off valve 18).
and a discharge side coupler joint 19 are connected to the piping 20. Then, a bypass pipe 21 is provided that carries the manual pulp 22 from the branched point at the water outlet o1 to the water outlet lower and the discharge pipe 17. A solenoid valve 23 is provided between the point where the exhaust pipe 17 is located and the confluence of the bypass pipe 21 at the second point.

The pressure switches 14, 15 . and electricity.

Magnetic valve 23° C compressed total air discharge device 8. Ice making equipment F (: 1
A cleaning device S is formed by providing a control device 24 for controlling the operations of the cleaning device S and the like.

In Figure 1, 26 is the drain pulp, 21 is the operating part of the ice making device 1, 28 is the pressure meter, 29 is the carbon dioxide gas introduction part, 30
31 is an external cylinder coupler, and 31 is a discharge section coupler.

Next, to explain the cleaning method using this cleaning device S, as shown in FIG. As the compressed air discharge device 8, an oil-less compressor is built in, or compressed air is immediately input from an external compressor 33.In this case, if the external compressor 33 is an oil compressor, an oil compressor kagler is used. From the 34th side again.

In the case of a general compressor, compressed air is introduced from a general compressor coupler 35 through a filter 44.

Then, as shown in FIG. 3, the tip 1 of the branch pipe 32 on each floor in the piping 20 having the elevated water tank 40 is closed, and the cleaning device S is connected to each floor pulp 37, and For example, even on the fourth floor, the cleaning device S is connected to the branch pipe 32 which is closer to the base 936c than the branch pipe 32.

Therefore, the main pulp 38 is opened to the diameter of the branch pipe 32,
After that, each floor valve 37 is opened by 3A8 degrees C2 of the diameter of the branch pipe 32. In this case, if the C-nemain valve 38 and each floor pulp 37 are opened too much, the effect will be reduced, and the floor pulps on floors that do not require cleaning are kept closed.

Then, first, measure the water pressure at a constant level 114 before cleaning using a commercially available piping test provenance record water pressure gauge 39 shown in Figure 4 (= shown) to check for abnormalities in the water pressure.

At that point, it is checked whether there is water in the ice making device 1, and after mixing the food additives in the water, ice is made to make coarse ice. And the drastic “I ice tray 4 only 1
1y, a compressed air is sent from the compressed perforation discharge device @8, and two pressure waves are emitted along with rough ice into the pipe 20 through the discharge pipe 16 from the water outlet 07. If the operating pressure of the pressure switch 14 is set to a value ≦2 smaller than the operating pressure of the pressure switch 15, initially (: compressed air with a slightly weaker pressure to discharge ice is sent in, and then due to pressure waves. High H: Very high C is effective because compressed air with high force is sent in and the phase is shifted.

After performing the above-mentioned process of emitting the rough ice and pressure waves several times, the electromagnetic valve 23 is opened to discharge the bubble-free air in the piping 20 to the outside, and at the same time, the Ice, force waves, and arcs: Therefore, the rust and deposits that have been removed are also discharged to the outside.

As a result, most of the dirt inside the pipe 20 can be completely removed without causing any damage due to the small grains of rough ice and the pressure waves.

Next (2) The ice made by the ice making device 1 is not in a rough shape, but rather a rather large lump, that is, an ice block, and as described above (2) It is distributed with a pressure wave? Stubborn dirt that could not be removed can be easily removed.Finally, check the water pressure in the O by using the water pressure gauge 39 to complete the work.

Therefore, these work steps can be carried out by each of the above-mentioned cleaning apparatuses.
When S is used together, the water pressure from the elevated water tank 40 rises by C2 for each branch pipe 32 and becomes C1 downward or toward the tip, so the pressure becomes high. At the branch point of the piping 20, a weak pressure wave force is transmitted in the opposite direction to the elevated water tank 40 direction C2, and this force and the force of the pressure wave C2 from the other cleaning device S are combined. The compression waves and expansion waves collide and interfere, eliminating the plug flow generated in one cleaning device S and causing pressure transmission (i6
It made it possible to easily obtain speed.

In addition, the solenoid valve 23, pressure switches 14, 15, compressed air discharge device 8s, ice making device 1, etc. are controlled by the control device 24, and while the large ice device (device 1) is making ice, the air in the pipe 20 is In order to remove Ilν, operate the magnetic valve 23 (
Second, there is no wasted cleaning time.

This invention is achieved by having the above-mentioned tapping structure.

Emergency C: @The inside of the single C two pipe 20 can be cleaned without damaging it, and the effective range of cleaning is also expanded, making it possible to clean efficiently in a short time.

That is, first with rough ice and pressure waves.

Since it is cleaned later with ice blocks and pressure waves, it can be cleaned without damaging the inside of the pipe 20, and when the rough ice is made, impurities that are harmless to humans and animals such as QD food additives are mixed in. Since the ice making device 1 is built in and the ice made can be directly discharged into the piping, it is possible to clean the water supply system for drinking water (C2). It also eliminates the trouble of filling short tubes of ice, which was a drawback when storing ice cubes.

and a discharge pipe 17 for discharging air, etc., and a control device 24 (=therefore, it is possible to adjust and control as appropriate Since the ice making time and the time for extracting the air can be done at the same time, cleaning can be done in a short time (double efficiency).

Moreover, the cleaning device S is installed in the branch pipe 32 arranged on each floor of the pill etc.
If a plurality of cylinders 151'iC are selected as appropriate and a plurality of cylinders 151'iC are connected and cleaning is performed at the same time, the plug flow can be eliminated as described above, so that there is no adverse effect on the pressure propagation velocity C2 due to this plug flow C2. 41 effects of cleaning can be extended.

According to the toothpick described above, the inside of the piping can be cleaned by using the three-phase gas-liquid-solid flow.

Moreover, by using the rough ice and the ice block separately, the inside of the pipe (1) can be easily cleaned without causing any damage. L: Therefore, it is possible to adjust and control the 4 FIJ during ice making, the discharge time, and the discharge time such as 9 Qi. This has excellent effects such as being able to extend the M effect range.

[Brief explanation of drawings]

The drawings show a practical example of the present invention. Figure gj42 is a schematic diagram when pipe C2 cleaning equipment is connected, Figure 6 is a piping diagram when branch pipe C cleaning equipment installed on each floor such as pills is connected, and Figure 4 is a diagram of the rib pipe test equipment. It is a schematic diagram of a recording water pressure gauge. S...Cleaning Vi Place 1...Beautiful ice: 1/; Place 2...Carbonated Ganuponpe 3
...carbon dioxide gas bottle/pe 4...ice tray 5...lid
6... Pregnant Loa... Ice) 5 mouths 8... IJ'
E, :W fecal discharge device (up to 9... Compression tightness discharge pipe
10... Discharge force dollar joint 11... Check valve
12... Bypass pipe line 13... Solenoid valve 14...
・Pressure switch 15... Field switch 16 River discharge pipe 17 River discharge pipe 18-... Manual (1u valve closed 19
...Discharge upward 1 coupler joint 2o...Piping
21...Bypass pipeline 22...Manual opening/closing valve
23...Solenoid valve 24...Side tilting device 25...Branch pressure high 32.°° branch pipe 33...Compressor 3...Cagler for oil compressor 35.
...Kagura for general congressor 36...Base pipe 3
7...Floor valve 3B-Main valve 39...
・Self-recording water pressure gauge for piping tenuto 40...Takako Suihinoki patent author Tadayoshi Sato Figure 2 32 33 1゜

Claims (1)

[Claims] 1. Adding impurities that are harmless to humans and animals, such as food additives, into water to create rough ice, and creating ice in pipes filled with liquid (
2. At the same time as this ice is discharged, a water hammer effect is generated inside the piping by the pressure wave caused by the compressed air, and then the water hammer inside the piping is created. The series of steps up to removing the air is repeated as appropriate, 1st, the ice block is discharged into the pipe (2nd, the same water hammer effect as described above is generated,
A method for cleaning inside piping, characterized in that a series of steps are repeated as appropriate until the air inside the piping is removed, and the work is carried out at multiple locations at the same time on each floor of a building (such as one branch pipe). A 11V-shaped discharge pipe is used to directly discharge the compressed air from the discharge device into the pipe, and to discharge the compressed air into the pipe as appropriate pressure waves. Inside the pipe C1 A discharge pipe formed to remove the air inside the pipe after discharging ice and compressed air, and an ice making machine, a timer for discharging compressed air and ice, and a discharge pipe to remove the air inside the pipe. In order to adjust the timing of ice removal as appropriate, the ice-blowing device and each pipe C.
: A cleaning device for inside piping, characterized by comprising a control device for controlling an on-off valve provided therein.