JP2002339422A - Cleaning method for water supply pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method capable of efficiently and surely cleaning a water supply pipe after a water measurement device of each dwelling unit in multi-dwelling house. SOLUTION: In this cleaning method, an ozone water supply device is fitted to the water supply pipe after the water measurement device, ozone-containing water of necessary quantity for cleaning is passed through the water supply pipe by high speed rotation of a force-feed pump, and bacteria, rust lump and the like decomposed by oxidizing force of ozone are separated by water hammer action of compressed air to form a non-conductor coat on an inner wall surface of the water supply pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of cleaning a water supply pipe after each water dispenser in an apartment house.

[0002]

2. Description of the Related Art As a cleaning method for passing ozone-containing water through a water pipe of a building, in the conventional technique, ozone-containing water is passed through a water pipe, and organic substances such as bacteria adhering to the water pipe are oxidized by ozone. It sterilizes by sterilizing power, and peels and removes rust nodules by the water hammer action of compressed air.

[0003]

In the conventional method of cleaning a water supply pipe, when cleaning the water supply pipes after each water dispenser, it is necessary to remove the water dispenser. However, in the conventional method, sufficient water cannot be obtained on a high floor, so that sufficient washing cannot be performed.In addition, a load is applied to the pipe when the water meter is removed, and water leakage occurs depending on the pipe state. There was a problem. The present invention has been made to solve the above problems, and maintains a sufficient water pressure and water volume even on a high floor, and by installing a bypass, eliminates the work of removing a water meter and efficiently supplies water. Provided is a cleaning method for performing cleaning.

[0004]

The cleaning method of the present invention comprises:
(1) Install a bypass in the water pipe after the water meter, (2)
An ozone water producing device is attached to the bypass part. (3) Ozone-containing water is passed through the water supply pipe to sterilize and decompose bacteria and rust nodules in the water supply pipe, and (4) ozone-containing water is supplied to the water supply pipe. , By supplying a sufficient water pressure and amount of water through a pressure pump, and (5) generating a water hammer action by compressed air,
(6) Discharge the washing wastewater from the water tap end faucet,
(7) The water supply pipe is finished and cleaned with raw tap water. By the above steps, bacteria, rust, etc. are sterilized and oxidatively decomposed by the oxidation and sterilizing power of ozone-containing water,
Bacteria, rust nodules and the like are separated from the inside of the pipe by a water hammer action by compressed air, and a non-conductive coating is formed on the inner wall surface of the pipe. Hereinafter, an embodiment of a method for cleaning a water supply pipe according to the present invention will be described with reference to the drawings.
The equipment used in the method for cleaning a water supply pipe of the present invention is shown in FIG.
It is installed in the water supply pipe after the water meter in each house. Raw water from tap water is supplied to the ozone water producing device 1 through the hose a from the supply water supply bypass 6. The supplied tap water is mixed with the ozone gas generated from the ozone gas generator 2 by the ozone water producing apparatus 1 to become ozone-containing water, and stored in the water tank 8 through the hose b. The stored ozone-containing water keeps a stable amount of water into the water supply pipe from the ozone-containing water supply bypass 7 via the pressure pump 3,
Water is passed at high speed. Next, the air compressor 4 is operated to send compressed air from the compressed air supply port 5 to cause a water hammer action, and discharge the washing wastewater from the water pipe end faucet c. Finally, the residue in the water supply pipe is washed with the raw tap water, and the water supply pipe washing is completed. In the case of the conventional cleaning method for individual houses in an apartment house, the work was performed by removing the water meter of each house and directly attaching the ozone water production device. In addition, there has been a problem that the working efficiency is poor such that a sufficient amount of water for washing cannot be obtained on a high floor. In the method of cleaning a water supply pipe of the present invention, an ozone water supply device can be easily installed, and a sufficient amount of water can be obtained by a pressure pump, so that 3 to 4 houses can be cleaned at the same time, and the work efficiency is sufficiently improved. Things. In addition, since high-concentration ozone-containing water is supplied while being rotated at a high speed, it is possible to clean every corner in the pipe. Further, since the water is once stored in the water tank, there is an advantage that surplus ozone gas is hardly discharged into the room.

[0005]

Embodiments of the present invention will be described below. 1. Produces ozone-containing water. The raw water supplied from the raw water supply bypass generates ozone-containing water by an ozone water producing device and stores it in a small tank. 2. Clean the inside of the water supply pipe. The faucet in the room is opened, and the pump is operated to flow ozone-containing water into the water supply pipe. In all faucets,
After confirming that the ozone-containing water has passed, the air compressor is operated. Air pressure is 3-5kg /
Set to cm ² . The compressed air is sent at intervals of 2 seconds once every 4 seconds for about 5 minutes, and once every 6 seconds.
The time is set to about 5 minutes at an interval of 3 seconds, and finally to about 5 minutes at an interval of 4 seconds once every 10 seconds. This is repeated. This compressed air causes a water hammer action, and bacteria and rust nodules decomposed by the oxidizing power of the ozone-containing water become red water and are discharged from the faucet. When the discharge of the red water has stopped, the air compressor is stopped and the ozone-containing water is allowed to flow for about 15 minutes. The ozone concentration was measured at all the taps, and the washing operation was terminated when the concentration reached 3 ppm or more. 3. Finish and clean the inside of the water supply pipe with tap water. After the washing with the ozone-containing water is completed, the ozone water producing device is removed, the bypass portion is restored, and the tap water is supplied. After all the faucets have been inspected and it is confirmed that no residue is discharged, the process is terminated.

[Brief description of the drawings]

FIG. 1 is a schematic view showing installation of each device of an ozone-containing water supply device of the present invention.

FIG. 2 is an enlarged view showing a structure of a raw water and ozone-containing water supply bypass device of the ozone-containing water supply device of the present invention.

FIG. 3 is an enlarged view showing the structure of an ozone-containing water supply device used in the present invention.

FIG. 4 is a sectional view showing a structure of an ozone-containing water supply bypass of the ozone-containing water supply device of the present invention.

[Explanation of symbols]

 1. Ozone water production equipment 2. Ozone gas generator 3. Pressure pump 4. Air compressor 5. 5. Compressed air supply port 6. Raw water supply bypass 7. Ozone-containing water supply bypass Water tank 9. Supply valve 10. Check valve a. Raw tap water supply hose b. Ozone-containing water supply hose 1 c. Ozone-containing water supply hose 2 d. Ozone-containing water supply hose 3 e. Compressed air supply hose a. Water supply valve a. Water meter c. Water pipe

Claims (2)

[Claims] 1. A method for cleaning a water supply pipe, comprising the steps of: installing a water supply pipe cleaning bypass in a water supply pipe after each household water dispenser of a general apartment house; attaching an ozone water producing device to the bypass portion; A process of mixing ozone gas with raw tap water to generate ozone-containing water having high oxidizing and sterilizing power by an ozone water producing device and storing the ozone-containing water in a water tank, and passing the ozone-containing water to a water supply pipe via a pressure pump. And the compressed air generator attached to the bypass part,
A method for cleaning a water supply pipe, comprising a step of generating a water hammer action on a water supply pipe, a step of discharging cleaning water from a water supply pipe end tap, and a step of cleaning the water supply pipe with raw tap water. 2. An ozone water supply device for use in the method for cleaning a water supply pipe according to claim 1, wherein a raw water supply bypass with a check valve and a raw water supply for supplying tap water to the ozone water production device. Ozone water production equipment that mixes the raw tap water supplied from the bypass with ozone gas to generate ozone-containing water, a water tank for storing ozone-containing water, and a pressure pump and a water supply pipe for supplying water from the above-mentioned water tank to the water supply pipe. Ozone-containing water consisting of a compressed air supply device for supplying compressed air to the air and an ozone-containing water supply bypass with a non-return valve provided with an impeller inside can be rotated at high speed and supplied with a stable amount of water. Ozone-containing water supply device.