KR102226744B1 - Water supply pipe cleaning device and cleaning method using ozone - Google Patents

Abstract

Disclosed are a cleaning device and a cleaning method for a water supply pipe, which can remove contaminants such as milk fat formed in a water supply pipe of a building and sterilize the inside of the water supply pipe. To this end, the cleaning device for a water supply pipe using ozone comprises: a water tank storing water; an ozone generator to create and supply ozone; a building pipe connected to the water tank and installed in a building to move the water stored in the water tank to a faucet provided in the building; and a cleaning water creation unit which is installed on the building pipe, mixes the ozone supplied from the ozone generator and the water supplied from the water tank to create cleaning water containing ozone, and supplies the cleaning water to the building pipe to clean the building pipe. According to the present invention, since a water supply pipe can be cleaned with cleaning water containing ozone, various foreign substances or bacteria existing in the water supply pipe can be effectively removed.

Description

Water supply pipe cleaning device and cleaning method using ozone {WATER SUPPLY PIPE CLEANING DEVICE AND CLEANING METHOD USING OZONE}

The present invention relates to a water supply pipe cleaning apparatus and a cleaning method capable of removing contaminants such as milk fat formed inside a pipe as the usage period elapses, and more particularly, to a contaminant such as milk fat formed inside a water supply pipe of a building. It relates to a water supply pipe cleaning apparatus and a cleaning method capable of removing and sterilizing the inside of the water supply pipe.

Water supply pipes are installed in general homes, apartments, or buildings. Once installed in a building, these water supply pipes are used for a long time, and as the usage time elapses, rust occurs due to corrosion, deposits of various organic and inorganic substances, and water supply passing through the water supply pipe in the form of various microorganisms and bacteria Becomes a cause of contamination, which causes a very big problem in terms of hygiene.

In the case of heating pipes, alkali salts such as calcium and magnesium are dissociated and dissolved in the supplied cooling water, and these salts are concentrated in the cooling water system and precipitated on the heat transfer surface of the high-temperature heat exchanger, causing scale disturbance. The constituents of the scale are calcium carbonate, iron oxide, silica, calcium phosphate, etc. These components are concentrated in circulating water and precipitated on the metal surface to form scale, and the water temperature rises (coolant temperature rises, heat exchanger surface temperature rises) and pH. Scale formation is promoted by rising.

When such scale solidifies on the inner wall of the water supply pipe, it is hardened by deposition or precipitation, the heat transfer efficiency is significantly lowered, so the heating efficiency is also lowered. Therefore, the fuel cost rises, and the water pressure in the water supply pipe increases, and there is an increased concern that the water supply pipe will be partially damaged. For example, the phenomenon of rust coming out of heating pipes that have been used for more than 10 years in general homes is a phenomenon that occurs when these deposits are corroded.

Moreover, when the water supply pipe is used for a long time, a microbial film such as iron bacteria is formed inside the water supply pipe, and a localized battery is formed therein. As iron is dissolved inside by the localized battery formed in this way, iron ions are deposited as iron oxide in the agglomerate, and the clump gradually grows, and iron bacteria live in this clump, which causes a problem of continuous corrosion inside the water supply pipe. do.

In order to solve such a problem, the water supply pipe can be replaced, but in this case, it takes a lot of cost and a long construction period, and various inconveniences are caused. Therefore, a significant number of people continue to use contaminated water or suffer from problems such as a decrease in heating efficiency.

In addition, in places where integrated pipes such as apartments and buildings are used, water of strong pressure is periodically sprayed and injected to have a pulsation so that such deposits are removed and washed away by pressure, but the pipe is cleaned with a simple physical means such as water pressure. There is a limit to things.

In particular, when a large lump formed inside the water supply pipe is separated from the water supply pipe by the pressure of water, there is a problem that a phenomenon occurs that several lumps gather inside the water supply pipe and prevent the movement of water in the water supply pipe.

In addition, when ozone water is used to clean the water supply pipe, ozone is mixed with water, but the larger the bubbles of ozone to be mixed, the more it is not dissolved in water and is separated into ozone gas.Therefore, the ozone concentration of the ozone water is not kept constant, so the purifying power of ozone water. There was a problem of not obtaining oversterilization power, and ozone gas separated from water has a strong odor, is toxic, and reacts with gases in the atmosphere to produce volatile organic compounds and nitrogen oxides, so ozone is sufficiently dissolved in water. Therefore, there is a demand for the development of a device that generates ozone water having a certain level of concentration.

Korean Patent Registration No. 10-0719602 (announced on May 25, 2007) Republic of Korea Patent Publication No. 10-2009-0022255 (published on March 4, 2009) Republic of Korea Utility Model Registration No. 20-0471542 (announced on February 28, 2014) Korean Patent Registration No. 10-0615455 (announced on August 25, 2006)

Accordingly, a first object of the present invention is to provide a water supply pipe cleaning apparatus for injecting washing water containing ozone into a water supply pipe so as to smoothly clean the inside of the water supply pipe by installing it in a water supply pipe existing inside a building.

In addition, a second object of the present invention is to produce washing water containing ozone by mixing water and ozone gas, and mixing oxygen to the washing water to generate washing water containing oxygen bubbles, and oxygen bubbles are generated in the water supply pipe. It is to provide a method of cleaning contaminated pipes in which the included washing water is injected to wash the water supply pipe.

In order to achieve the first object of the present invention described above, in an embodiment of the present invention, a water tank in which water is stored, an ozone generator that generates and supplies ozone, and is connected to the water tank and installed in a building to the water tank. A building piping for moving stored water to a faucet provided in the building, and a building piping installed in the building piping, and mixing ozone supplied from the ozone generator and water supplied from the water tank to generate washing water containing ozone, It provides a water supply pipe cleaning apparatus using ozone including a washing water generating unit for supplying the washing water to the building pipe to clean the building pipe.

In addition, in order to achieve the second object of the present invention, in an embodiment of the present invention, the ozone generator generates ozone and supplies it to the washing water generating unit, and the water stored in the water tank is supplied to the washing water generating unit; A washing water generation step of generating washing water containing ozone by mixing ozone supplied from the ozone generator and water supplied from the water tank, and on a building pipe through which the washing water is transported so that oxygen bubbles are included in the washing water. Including an oxygen injection step of injecting oxygen compressed by a compressor into an injector installed in the building, and a common pipe cleaning step in which the circulation pump installed in the building piping transfers the washing water containing oxygen bubbles along the building piping to clean the building piping. It provides a method for cleaning contaminated pipes using ozone.

According to the present invention, since the water supply pipe can be cleaned with washing water containing ozone, various foreign substances and bacteria existing inside the water supply pipe can be effectively removed.

In addition, since the present invention can periodically remove contaminants inside the water supply pipe, water that is not contaminated with the pollutants remaining inside the water supply pipe can be provided.

In addition, since the present invention uses ozone instead of chlorine as a disinfectant, carcinogens such as trihalomethane (THM) are not produced, and viruses and bacteria can be sterilized within a short time.

In addition, the present invention can produce washing water having an ozone concentration of a preset level by inhibiting the generation of bubbles when mixing water and ozone gas, and generating washing water having a high ozone concentration compared to the amount of ozone gas used. can do.

1 is a block diagram illustrating a water supply pipe cleaning apparatus according to an embodiment of the present invention.
2 is a block diagram illustrating a water supply pipe cleaning apparatus according to another embodiment of the present invention.
3 is a configuration diagram illustrating an embodiment of a washing water generating unit according to the present invention.
4 is a configuration diagram illustrating another embodiment of a washing water generating unit according to the present invention.
5 is a block diagram illustrating a water supply pipe cleaning apparatus according to another embodiment of the present invention.
6 is a flow chart for explaining a water supply pipe cleaning method according to the present invention.

Hereinafter, a water supply pipe cleaning apparatus capable of removing milk fat according to preferred embodiments of the present invention (hereinafter, abbreviated as a “water supply pipe cleaning apparatus”) will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a water supply pipe cleaning apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the water supply pipe cleaning apparatus according to the present invention includes a water tank 100 in which water is stored, an ozone generator 200 for generating and supplying ozone, and a water tank 100 connected to the water tank 100. ), a building pipe 300 that moves the water stored in the building to the faucet 12 provided in the building, and a washing water generation unit that generates washing water containing ozone by mixing water and ozone, and supplies it to the building pipe 300 Including 400, it may further include a control unit (not shown) for selectively controlling the operation of the ozone generator 200 and the washing water generating unit 400.

Hereinafter, each component will be described in more detail with reference to the drawings.

1 and 2, the water supply pipe cleaning apparatus according to the present invention includes a water tank (100).

The water tank 100 receives and stores water from a tap water supply, and supplies water used by the faucet 12 provided in the building through the building pipe 300. The water tank 100 may receive and store groundwater instead of receiving tap water directly from the tap water.

The water tank 100 is connected to a water inlet and a building pipe 300 so as to supply pre-stored water to the water inlet of the washing water generating unit 400.

If necessary, in the building pipe 300 connecting the water tank 100 and the washing water generating unit 400, the water stored in the water tank 100 can be smoothly transferred to the washing water generating unit 400. A pump may be provided.

In addition, the building pipe 300 may be provided with a transfer valve 150 for opening and closing the passage of the building pipe 300 between the water tank 100 and the washing water generating unit 400. As the transfer valve 150, a solenoid valve that is remotely connected to the control unit and operates under the control of the control unit may be used.

In addition, a flow sensor for sensing a flow rate of water supplied from the water tank 100 to the washing water generating unit 400 may be installed in the building pipe 300. This flow sensor detects the flow rate of water flowing into the washing water generating unit 400 through the building pipe 300 and provides it to the control unit.

In a specific aspect, the water tank 100 according to the present invention is composed of only an underground storage tank 110 that receives and stores water from a tap water, or is connected to the underground storage tank 110 to receive water from the underground storage tank 110. It may be configured to further include an upper storage tank 120 to store.

In this way, when the water tank 100 is composed of an underground water storage tank 110 and an upper water storage tank 120, the water stored in the underground water storage tank 110 supplies water to the cold water pipe 310 among the building pipes 300, and the upper Water stored in the water storage tank 120 may supply water to the hot water pipe 320 among the building pipes 300 through a boiler.

1 and 2, the water supply pipe cleaning apparatus according to the present invention includes an ozone generator 200.

The ozone generator 200 generates ozone gas and supplies it to the washing water generating unit 400, and for this purpose, the ozone generator 200 may be connected to the ozone inlet of the washing water generating unit 400 through a pipe.

The ozone generator 200 may generate ozone according to the ozone production amount indicated by the control unit and supply it to the ozone inlet. To this end, the ozone generator 200 is electrically connected to the control unit, and adjusts the ozone production amount according to the control of the control unit.

Since the ozone generator 200 has a maximum amount of ozone production per hour, the manager inputs the maximum amount of ozone production per hour of the ozone generator 200 through an input unit connected to the control unit so that the control unit can smoothly control the ozone generator 200 can do.

This ozone (O ₃ ) is a material in an unstable state with physical properties such as molecular weight 48, melting point -251°C, boiling point 112°C, specific gravity 1.7, and ozone water dissolved in water has excellent oxidation and decomposition power for organic and inorganic substances. It has excellent sterilizing power against various microorganisms and bacteria. If the inside of the piping is cleaned using washing water containing ozone at a high concentration having such properties, contaminants such as slime and scale inside the piping can be effectively removed. At this time, since the half-life of ozone decreases as the temperature of ozone increases, it is preferable to perform cleaning by lowering the temperature as much as possible.

1 and 2, the water supply pipe cleaning apparatus according to the present invention includes a building water supply pipe 300.

The building water supply pipe 300 is installed in the building, one end is connected to the water tank 100 and the other end opposite to the end is connected to the faucet 12 provided in the building. It serves to move the water stored in the water tank 100 to the faucet 12 provided in the building so that it can be used.

The building water supply pipe 300 may be composed of a cold water pipe 310 connected to the underground storage tank 110 and a hot water pipe 320 connected to the upper water storage tank 120 as shown in FIG. 2.

1 and 2, the water supply pipe cleaning apparatus according to the present invention includes a washing water generating unit 400.

The washing water generation unit 400 is installed in the building pipe 300, and generates washing water containing ozone by mixing ozone supplied from the ozone generator 200 and water supplied from the water tank 100, The washing water is supplied to the building piping 300 to clean the building piping 300.

The washing water generating unit 400 is provided with an ozone inlet connected to the ozone generator 200, a water inlet connected to the water tank 100, and stores washing water after generating washing water with ozone and water.

In the washing water generating unit 400, water is introduced through a water inlet connected to the water tank 100, ozone is introduced through the ozone inlet, and ozone and water are mixed therein to generate washing water containing ozone. There is a space to be made. In this case, a check valve may be installed in a pipe provided between the ozone generator 200 and the washing water generator 400 to prevent reverse flow of ozone.

In addition, a gas discharge valve for discharging the ozone gas accumulated above the liquid level in the washing water generating unit 400 to the outside is installed above the washing water generating unit 400. It is preferable to use an air operated valve as such a gas release valve. This is because, when the solenoid valve is used, the metal part of the solenoid valve is corroded, and there is a possibility that foreign substances or the like may be mixed in the washing water in the washing water generating unit 400.

Specifically, as the gas release valve, a control valve capable of adjusting the flow rate of gas may be used, or an opening/closing valve capable of switching only between 100% and 0% of the opening degree may be used.

As the gas release valve, a ball valve, a globe valve, a diaphragm valve, or the like may be used, but a diaphragm valve is preferably used.

Meanwhile, the interior of the washing water generating unit 400 may be configured to be maintained at a high pressure. Specifically, the pressure of the space above the liquid level of the washing water generating unit 400 is preferably maintained at 0.2 to 0.6 MPa, preferably 0.3 to 0.5 MPa. As a result, it is possible to dissolve a larger amount of ozone gas in the water inside the washing water generating unit 400.

3 is a configuration diagram for explaining an embodiment of the washing water generating unit 400 according to the present invention. As a first embodiment, the washing water generating unit 400 according to the present invention includes a dissolution tank 410 and a gas permeable membrane 420 as shown in FIG. 3 so that washing water having a high ozone concentration and no air bubbles can be generated. And, it may be configured to include an ozone discharge pipe 430.

The dissolution tank 410 is a liquid room 412 in which water stored in the water tank 100 is injected and the washing water is discharged, and a gas room in which the ozone supplied from the ozone generator 200 is injected and the excess ozone is discharged. 414 is provided. The dissolution tank 410 is formed in a block structure with a hollow, and because ozone resistance is required, it may be composed of a fluorine resin or coated with a fluorine resin.

At this time, as the fluororesin, polytetrafluoroethylene (PTFE), polychlorotrifluoroethylene (PCTFE), perfluoroalkoxy fluororesin (PFA), tetrafluoride ethylene·hexafluoropropylene copolymer (FEP), ethylene· Ethylene tetrafluoride copolymer (ETFE), ethylene-chlorotrifluoroethylene copolymer (ECTFE), and the like can be used.

The gas permeable membrane 420 is installed inside the dissolution tank 410 so as to divide the inside of the dissolution tank 410 into a liquid room 412 and a gas room 414. Provides a contact surface for ozone. This gas permeable membrane 420 reduces the generation of ozone bubbles during the process of dissolving ozone gas in water, and helps to generate washing water having a certain level of concentration according to the ozone production amount of the ozone generator 200. . In addition, the gas permeable film 420 may be made of a fluororesin having excellent ozone resistance. In addition, the shape of the gas permeable film 420 is not particularly limited, and may be formed, for example, in the form of a flat plate having a plurality of through holes.

In this way, in the dissolution tank 410, the water supplied to the liquid room 412 and the ozone gas supplied to the gas room 414 contact through the through hole of the gas permeable membrane 420 to generate washing water containing ozone. do.

The ozone discharge pipe 430 communicates with the gas room 414 of the dissolution tank 410 and discharges excess ozone not dissolved in water to the outside of the dissolution tank 410. To this end, the ozone discharge pipe 430 is installed above the ozone discharge pipe 430 as shown in FIG. 3.

The washing water generation unit 400 according to the present invention includes a dissolution tank 410, a gas permeable membrane 420, a liquid room pressure gauge 440, a gas room pressure gauge 450, and a pressure in the ozone discharge pipe 430. It may be configured to further include an adjustment means (460).

The liquid room pressure gauge 440 is installed at the outlet of the liquid room 412 from which the washing water is discharged to measure the outlet pressure of the liquid room 412, and the outlet pressure of the liquid room 412 is adjusted by pressure control means 460. Or to the control unit. In other words, the liquid room pressure gauge 440 is installed in the building water supply pipe 300 located behind the washing water generating unit 400. The configuration of the liquid room pressure gauge 440 is not particularly limited, and a liquid pressure gauge or the like may be used.

The gas room pressure gauge 450 is installed at the outlet of the gas room 414 from which excess ozone is discharged to measure the outlet pressure of the gas room 414, and adjusts the outlet pressure of the gas room 414 by a pressure control means 460 ) Or to the control unit. In other words, the gas room pressure gauge 450 is installed in the ozone discharge pipe 430. The configuration of the gas room pressure gauge 450 is not particularly limited, and a gas pressure gauge or the like may be used.

The pressure control means 460 controls the pressure inside the gas room 414 based on the pressure measured by the liquid room pressure gauge 440 and the gas room pressure gauge 450, and is located at the rear of the gas room pressure gauge 450. It is installed in the located ozone discharge pipe 430.

The pressure control means 460 may be directly connected to the liquid room pressure gauge 440 and the gas room pressure gauge 450 or may be indirectly connected to the liquid room pressure gauge 440 and the gas room pressure gauge 450 through a control unit.

For example, when the pressure control means 460 is directly connected to the liquid room pressure gauge 440 and the gas room pressure gauge 450, the liquid room outlet pressure and gas room transmitted from the liquid room pressure gauge 440 and the gas room pressure gauge 450 The outlet pressure is compared and analyzed to adjust the outlet pressure of the gas room 414 so that the outlet pressure of the gas room is close to the outlet pressure of the liquid room. To this end, the pressure control means 460 discharges the gas passing through the outlet of the gas room 414 to the outside so that the gas room outlet pressure approaches the liquid room outlet pressure.

In addition, as the pressure control means 460, a pressure control valve may be used.

More specifically, the pressure control means 460 controls the flow rate of the excess gas in the gas room 414 according to the outlet pressure of the liquid room 412 and the outlet pressure of the gas room 414 to control the pressure in the gas room 414. Control. And the pressure control means 460 controls the pressure of the gas room 414 so that the difference between the liquid room outlet pressure and the gas room outlet pressure is 0 MPa to 0.1 MPa. In other words, the outlet pressure of the gas room 414 is preferably formed to be less than 0.1 MPa than the outlet pressure of the liquid room 412.

At this time, if the gas room outlet pressure is greater than the liquid room outlet pressure, the ozone inside the gas room 414 rapidly moves to the liquid room 412, so a large amount of ozone bubbles are generated in the washing water, thereby reducing the ozone concentration of the washing water to a certain level There may be a problem that becomes difficult to control. In addition, when the difference between the outlet pressure of the liquid room and the outlet pressure of the gas room exceeds 0.1 MPa, the ozone concentration of the washing water decreases, so that the oxidizing power of the washing water may be lowered.

The washing water generation unit 400 according to the present invention may further include an ozone water discharge pipe 470, a discharge valve 480, and an OH radical generation tank 490. In other words, the washing water generation unit 400 includes a dissolution tank 410, a gas permeable membrane 420, an ozone discharge pipe 430, an ozone water discharge pipe 470, a discharge valve 480, and an OH radical generation tank 490. ) May be configured including a dissolution tank 410, a gas permeable membrane 420, an ozone discharge pipe 430, a liquid room pressure gauge 440, a gas room pressure gauge 450, a pressure control means 460, an ozone water discharge pipe (470), a discharge valve 480, and may be configured to include an OH radical generation tank 490.

The ozone water discharge pipe 470 communicates with the lower portion of the gas room 414 to discharge water flowing into the gas room 414, and the water flowing into the gas room 414 through the liquid room 412 is discharged. It serves to discharge to the outside of the melting tank (410). This is because water passing through the liquid room 412 due to the structure of the gas permeable membrane 420 may move to the gas room 414 through the through hole of the gas permeable membrane 420.

The discharge valve 480 is installed in the ozone water discharge pipe 470 and serves to temporarily open and close the ozone water discharge pipe 470. The discharge valve 480 periodically opens the ozone water discharge pipe 470 to transfer the ozone water accumulated in the gas room 414 to the outside through the ozone water discharge pipe 470. At this time, water flows into the gas room 414 through the gas permeable membrane 420, but the water is mixed with ozone passing through the gas room 414 to generate ozone water.

In addition, the discharge valve 480 closes the ozone water discharge pipe 470 during normal times so that the ozone gas flowing into the gas room 414 is not discharged through the ozone water discharge pipe 470. To this end, the discharge valve 480 may be electrically connected to the control unit and automatically turned on/off according to the control of the control unit.

The OH radical generation tank 490 is installed at the end of the ozone water discharge pipe 470 connected to the sewer pipe of the building, and accommodates transition metals or metal oxides so that OH radicals are generated from the ozone water transferred along the ozone water discharge pipe 470 do. To this end, the ozone water discharge pipe 470 has one end connected to the dissolution tank 410, and the other end facing the one end is connected to the sewer pipe.

This OH radical generation tank 490 provides a function of preventing environmental pollution by ozone by generating OH radicals from ozone contained in the ozone water discharged to the sewer pipe after being transported along the ozone water discharge pipe 470. In addition, the OH radical generation tank 490 generates OH radicals having an oxidizing power superior to ozone in order to clean the tip of the sewer pipe with the highest pollution degree among the sewer pipes and supplies it to the sewer pipe. These OH radicals have a stronger oxidizing power than ozone, but they all disappear during the process of moving along the sewer pipe because they have a shorter half-life.

In other words, the OH radical generation tank 490 is in contact with the transition metal or metal oxide immediately before the ozone water transferred along the ozone water discharge pipe 470 is discharged to the sewer pipe to generate OH radicals. It is installed at the end.

In order to improve the amount of OH radical generation, it is preferable to use one or more of Pd, Mn, Ni, Co, Cu, Ag, Cr, Zn, Fe as the transition metal, and MnO ₂ , TiO as the metal oxide It is preferable to use any one of ₂ and Al ₂ O _3.

As such, the OH radical generation tank 490 removes ozone contained in the discarded ozonated water to prevent environmental pollution, and generates OH radicals based on ozonated water to provide two effects that contribute to the washing of sewer pipes.

4 is a configuration diagram illustrating another embodiment of a washing water generating unit according to the present invention. As a second embodiment, the washing water generating unit 400 according to the present invention may include a dissolution tank 410, a bubble reducing plate 425, and a discharge valve 435.

In the dissolution tank 410, water and ozone are introduced into the lower portion and washing water is discharged from the upper portion, and the water supplied from the water tank 100 and the ozone supplied from the ozone generator 200 are mixed to generate washing water. Provide space to be able to. The dissolution tank 410 is formed in a block structure with a hollow, and because ozone resistance is required, it may be composed of a fluorine resin or coated with a fluorine resin.

The bubble shrinking plate 425 divides the interior of the dissolution tank 410 into a plurality of spaces, and a plurality of the bubble reduction plates 425 are installed in the dissolution tank 410 according to the moving direction of the washing water. For example, as shown in FIG. 4, when the washing water moves in the vertical direction of the dissolution tank 410, a first bubble reducing plate 426 is installed in the lower part of the dissolution tank 410, and the first bubble reducing plate 426 is A second bubble reducing plate 427 is installed on the top, a third bubble reducing plate 428 is installed on the second bubble reducing plate 427, and a fourth bubble reducing plate on the top of the third bubble reducing plate 428 429 is installed.

In addition, the bubble reduction plate 425 has a plurality of through-holes having a diameter gradually shrinking according to the moving direction of the washing water so that ozone bubbles mixed with water can be gradually reduced while moving from the bottom of the dissolution tank 410 to the top. It is equipped. For example, the first bubble reducing plate 426 is provided with a plurality of first through holes having the largest diameter, and the second bubble reducing plate 427 has a plurality of second through holes having a diameter smaller than that of the first through hole. A plurality of third through-holes having a diameter smaller than that of the second through-hole are provided in the third bubble reduction plate 428, and a plurality of third through-holes having a diameter smaller than that of the third through-hole are provided in the third bubble reduction plate 428. Four fourth through holes are provided.

In this way, when ozone supplied from the ozone generator 200 is gradually converted into small bubbles in the process of passing through the bubble reduction plate, since the contact area between water and ozone increases, the solubility of ozone in water can be increased. It is possible to generate washing water having a high ozone concentration relative to the amount of gas used.

In addition, since the bubble reduction plate 425 can delay the movement of ozone gas by limiting the movement path of the ozone gas passing through the inside of the dissolution tank 410, it also provides an effect of increasing the solubility of ozone in water. .

The discharge valve 435 is provided above the dissolution tank 410 and discharges and removes excess ozone contained in the dissolution tank 410 to the outside of the dissolution tank 410. This release valve 435 has the same configuration as the gas release valve described above.

As a third embodiment, the washing water generating unit 400 according to the present invention includes the first dissolution tank in which the gas permeable membrane 420 and the ozone discharge pipe 430 are installed, the bubble reduction plate 425 and the discharge valve ( 435) can be configured, including a secondary dissolution tank installed.

In addition, the primary dissolution tank communicates with the secondary dissolution tank and supplies the washing water that has passed through the primary dissolution tank to the secondary dissolution tank. At this time, the secondary dissolution tank is provided with a bubble reduction plate with a through hole having a diameter that gradually decreases according to the direction of movement of the washing water, so that the size of the ozone bubbles contained in the washing water passing through the primary dissolution tank is gradually reduced. To maximize the ozone solubility of washing water.

This primary dissolution tank is provided with the above-described liquid room pressure gauge 440, gas room pressure gauge 450, pressure control means 460, or the above-described ozone water discharge pipe 470, discharge valve 480, and OH radical generation The jaw 490 may be provided, or both may be provided.

Referring to FIG. 1, the water supply pipe cleaning apparatus according to the present invention may further include an injector 500.

The injector 500 is installed in the building water supply pipe 300 located at the rear of the washing water generating unit 400 to provide a space where oxygen bubbles and washing water are mixed, and the first inlet is the building water supply for transporting the washing water. It is connected to the pipe 300, the second inlet is connected to the compressor 600 that supplies compressed oxygen, and the outlet is connected to the building water supply pipe 300 to discharge washing water containing oxygen bubbles.

Referring to Figure 1, the water supply pipe cleaning apparatus according to the present invention may further include a compressor (600).

The compressor 600 is to inject oxygen compressed by the injector 500, and any compressor may be used as long as this purpose can be achieved. Oxygen injected into the injector 500 from the compressor 600 generates a large amount of oxygen bubbles in the process of being mixed with the washing water. These oxygen bubbles may provide an effect of splitting the pollutants by impacting the pollutants separated from the water supply pipe by the washing water. In addition, oxygen dissolved in the washing water forms oxygen water to improve sterilization, deodorization and decomposition power of the washing water.

In this case, an oxygen generator for generating oxygen may be connected to the compressor 600, and oxygen may be provided from the oxygen generator.

The above-described washing water generating unit 400 is configured to minimize the generation of ozone bubbles in order to maximize the ozone concentration of the washing water, but the injector 500 and the compressor 600 are configured to include oxygen bubbles in the washing water. do.

1 and 2, the water supply pipe cleaning apparatus according to the present invention may further include a circulation pump 700.

The circulation pump 700 is installed in the building pipe 300 and provides pressure so that the washing water supplied from the washing water generating unit 400 can be transferred to the faucet 12 of the building. To this end, the circulation pump 700 may be installed in the building pipe 300 located between the washing water generating unit 400 and the injector 500, or may be installed in the building pipe 300 behind the injector 500. have.

As the circulation pump 700, an ultra-high pressure pump may be used to move the washing water at a pressure of 150 to 300 bar or more.

For example, the circulation pump 700 may be a positive displacement pump that increases the pressure of the liquid in the space by changing the volume of the space. At this time, any one of a diaphragm pump, a gear pump, a piston pump, and a plunge pump may be used as the positive displacement pump.

The circulation pump 700 may be electrically connected to the controller and automatically turned on/off according to the control of the controller.

On the other hand, the circulation pump 700 is a first circulation pump 710 and a hot water pipe installed in the cold water pipe 310 as shown in FIG. 2 when the underground water storage tank 110 and the upper water storage tank 120 are installed in the building. It may be composed of a second circulation pump 720 installed in the 320.

Referring to FIG. 2, the water supply pipe cleaning apparatus according to the present invention may further include fluid flow accelerators 810 and 820.

The fluid flow accelerators 810 and 820 are installed in the washing water generating unit 400 or in the building pipe 300 located at the rear of the injector 500, so that the washing water transferred along the building pipe 300 can be accelerated. It can have the shape of a Venturi tube.

As a specific aspect, the fluid flow accelerator according to the present invention may include a first fluid flow accelerator 810 and a second fluid flow accelerator 820.

The first fluid flow accelerator 810 is installed in the cold water pipe 310 located at the rear of the first dissolution tank 410, and the second fluid flow accelerator 820 is at the rear of the second dissolution tank 410. It is installed in the located hot water pipe (320).

5 is a block diagram illustrating a water supply pipe cleaning apparatus according to another embodiment of the present invention.

Referring to FIG. 5, the water supply pipe cleaning apparatus according to the present invention may further include a use detection sensor (not shown) and a three-way valve 900.

The use detection sensor is installed in each water meter of a building, detects the operation of the water meter, generates a use signal for tap water, and transmits the use signal to the control unit.

The three-way valve 900 is installed in the building pipe 300 located in front of the water meter as shown in FIG. 5, and the washing water transferred to the faucet 12 along the building pipe 300 can be supplied under the control of the controller. It is supplied to the meter or through the discharge pipe. At this time, the discharge pipe has one end connected to the three-way valve 900, and the other end facing the one end is connected to the sewer pipe.

The three-way valve 900 is provided with one inlet and two outlets. At this time, the three-way valve 900 opens the first outlet communicated with the water meter under the control of the control unit and blocks the second outlet communicated with the discharge pipe, or blocks the first outlet communicated with the water meter. Open the second outlet communicated.

In this way, when the opening of one or more faucets 12 managed by the water meter is detected through the use detection sensor, the control unit opens the three-way valve 900 so that the washing water can be discharged through the faucet 12. It is supplied to the water meter through. In addition, when the opening of one or more faucets 12 managed by the water meter is not detected, the control unit supplies the washing water to the discharge pipe through the three-way valve 900 so that the washing water is discharged through the discharge pipe.

The water supply pipe cleaning apparatus according to the present invention may further include a control unit.

The control unit is connected to an ozone generator 200, a washing water generating unit 400, a compressor 600, a circulation pump 700, a three-way valve 900, a use detection sensor, an input unit, and a washing water generating unit from the flow sensor. It receives the flow rate of water flowing into the 400, receives various setting data from the input unit, and controls the ozone production amount of the ozone generator 200.

More specifically, the control unit controls the ozone generator to produce a predetermined amount of ozone production, and controls the ozone generator 200 to produce ozone according to the input of the amount of ozone produced per hour through the input unit.

The control unit calculates the concentration of ozone dissolved in water based on the flow rate of water sensed through the flow sensor and the ozone injection rate input through the input unit. In addition, the control unit compares the predetermined concentration of ozone with the measured concentration of ozone, and adjusts the flow rate of water and the amount of ozone transferred to the washing water generating unit 400 so that washing water having a predetermined concentration of ozone is generated.

When the ON signal of the circulation pump 700 is input through the input unit, the control unit controls the circulation pump 700 so that the washing water stored in the washing water generating unit 400 is injected into the circulation hose.

When the ON signal of the compressor 600 is input through the input unit, the control unit controls the compressor 600 so that compressed oxygen is injected into the injector 500.

After the ON signal of the circulation pump 700 is input through the input unit so that the washing water can clean the building piping 300, the control unit receives a use signal from a use detection sensor installed in the water meter, the washing water corresponding to the water supply. The three-way valve 900 is controlled so that the washing water can be supplied to the faucet 12 managed by the meter. At this time, the three-way valve 900 opens the first outlet communicated with the water meter and blocks the second outlet communicated with the discharge pipe.

After the ON signal of the circulation pump 700 is input through the input unit so that the washing water can clean the building piping 300, the control unit is The three-way valve 900 is controlled so that the washing water can be supplied to the front of the water meter divided by the valve 900. At this time, the three-way valve 900 blocks the first outlet communicated with the water meter and opens the second outlet communicated with the discharge pipe.

The control unit may open the discharge valve 480 according to a preset period so that the ozone water introduced into the gas room 414 is automatically discharged to the outside of the washing water generating unit 400.

When the outlet pressure of the liquid room 412 and the gas room 414 is provided from the liquid room pressure gauge 440 and the gas room pressure gauge 450, the control unit analyzes the output pressure and determines the outlet pressure of the gas room 414 A control signal for requesting pressure adjustment of the gas room 414 is generated according to the outlet pressure of the liquid room 412 so as to approach the outlet pressure of 412, and the control signal is provided to the pressure control means 460.

6 is a flow chart for explaining a water supply pipe cleaning method according to the present invention.

6, in the water supply pipe cleaning method according to the present invention, the ozone generator 200 generates ozone and supplies it to the washing water generating unit 400, and water stored in the water tank 100 is supplied to the washing water generating unit ( A pretreatment step (S100) supplied to 400) and a washing water generation step of mixing ozone supplied from the ozone generator 200 and water supplied from the water tank 100 to generate washing water containing ozone ( S200) and an oxygen injection step (S300) of injecting compressed oxygen by the compressor 600 into the injector 500 installed on the building water supply pipe 300 to which the washing water is transferred so that oxygen bubbles are included in the washing water, And a common pipe cleaning step (S400) in which the circulation pump 700 installed in the building water supply pipe 300 transfers the washing water containing oxygen bubbles along the building water supply pipe 300 to clean the building water supply pipe 300 (S400). Includes.

In the pretreatment step (S100), the ozone generator 200 adjusts the production amount of ozone so that ozone of a predetermined capacity is introduced into the dissolution tank 410. At this time, when the ozone generator 200 is connected to the control unit, the ozone generator 200 generates ozone according to the ozone production amount indicated by the control unit and supplies it to the ozone inlet of the dissolution tank 410.

In addition, in the pretreatment step (S100), the water tank 100 containing water supplies water to the dissolution tank 410. And when the solenoid valve is connected to the pipe connecting the water tank 100 and the dissolution tank 410, the solenoid valve opens and closes the pipe to control the movement of water starting from the water tank 100 through the pump, and the control of the controller It opens or closes automatically according to.

In the washing water generating step (S200), the washing water generating unit 400 mixes ozone supplied from the ozone generator 200 and water supplied from the water tank 100 to generate washing water containing ozone, and then stores the washing water. do.

More specifically, the washing water generation step (S200) includes a pressure measurement process, a pressure analysis process, and a pressure adjustment process, and may optionally further include an ozone water discharge process and an OH radical generation process.

In the pressure measurement process, the liquid room pressure gauge 440 measures the outlet pressure of the liquid room 412 when the water flowing into the dissolution tank 410 passes through the liquid room 412 divided by the gas permeable membrane 420. When the gas flowing into the dissolution tank 410 passes through the gas permeable membrane 420, the gas room pressure gauge 450 measures the outlet pressure of the gas room 414 and transmits it to the control unit.

In the pressure analysis process, the control unit compares and analyzes the outlet pressure of the liquid room 412 and the outlet pressure of the gas room 414 and requests to adjust the pressure of the gas room 414 according to the outlet pressure of the liquid room 412. It generates a signal and provides it to the pressure regulating means 460.

In the pressure adjustment process, the pressure control means 460 adjusts the flow rate of the excess ozone gas in the gas room 414 according to a control signal provided from the control unit, so that the pressure in the gas room 414 corresponds to the outlet pressure of the liquid room 412. Control to be adjacent. At this time, the pressure control means 460 controls the pressure of the gas room 414 so that the difference between the liquid room outlet pressure and the gas room outlet pressure is 0 MPa to 0.1 MPa.

In the ozone water discharge process, the discharge valve 480 installed in the ozone water discharge pipe 470 dissolves the ozone water flowing into the gas room 414 through the liquid room 412 through the ozone water discharge pipe 470 under the control of the controller. 410). Opening and closing of the discharge valve 480 may be performed at a preset period under control of the controller.

In the OH radical generation process, the OH radical generation tank 490 installed at the end of the ozone water discharge pipe 470 is moved along the ozone water discharge pipe 470 and then generates OH radicals based on the ozone water discharged to the sewer pipe. To this end, the OH radical generation tank 490 accommodates a transition metal or metal oxide.

In the process of generating OH radicals, ozone contained in ozonated water is converted into OH radicals, so that environmental pollution generated when ozone is discharged as it is to a sewer pipe can be prevented. In addition, OH radicals have a stronger oxidizing power than ozone, but have a shorter half-life than ozone, so they all disappear during the process of passing through a sewer pipe.

In the oxygen injection step (S300), the compressed oxygen is injected by the compressor 600 into the injector 500 installed on the passage through which the washing water is transferred so that oxygen bubbles are included in the washing water generated through the washing water generating step.

In the common pipe cleaning step (S400), the circulation pump 700 installed in the building water supply pipe 300 transfers the washing water that has passed through the injector 500 along the building water supply pipe 300 to transfer the water supply pipe 300 to the building. Wash.

If necessary, after the common pipe cleaning step may further include a household pipe cleaning step (S500). In the household pipe cleaning step, when a use signal is received from a use detection sensor installed in the first water meter of the building, the control unit controls the three-way valve 900 provided in the vicinity of the first water meter to wash water with the first water meter. To clean the water supply pipe of the household managed by the first water meter.

In addition, in the household pipe cleaning step, when a use signal is not received from a use detection sensor installed in the first water meter of the building, the control unit controls the three-way valve 900 provided in the vicinity of the first water meter to control the three-way valve 900. The washing water is injected into the discharge pipe connected to the sewer pipe and the washing water is discharged.

Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art will be able to variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the following claims. You will understand that you can.

100: water tank 110: underground reservoir
120: upper reservoir 200: ozone generator
300: building water supply pipe 400: washing water generation unit
410: dissolution tank 420: gas permeable membrane
430: ozone discharge pipe 440: liquid room pressure gauge
450: gas room pressure gauge 460: pressure control means
470: ozone water discharge pipe 480: discharge valve
490: OH radical generation tank 500: injector
600: compressor 700: circulation pump
810: first fluid flow accelerator 820: second fluid flow accelerator
900: three-way valve

Claims (8)

A water tank in which water is stored;
An ozone generator that generates and supplies ozone;
A building water supply pipe connected to the water tank and installed in a building to move water stored in the water tank to a faucet provided in the building; And
It is installed in the water supply pipe of the building and generates washing water containing ozone by mixing ozone supplied from the ozone generator and water supplied from the water tank, and supplying the washing water to the water supply pipe of the building to supply the water supply pipe to the building. It includes a washing water generating unit for washing,
The cleaning unit generation unit
A dissolution tank including a liquid room in which water stored in the water tank is injected and the washing water is discharged, and a gas room in which ozone supplied from the ozone generator is injected and excess ozone is discharged,
A gas permeable membrane that divides the dissolution tank into a liquid room and a gas room, and provides a contact surface between water and ozone so that the ozone is dissolved in water,
An ozone discharge pipe communicating with the gas room of the dissolution tank to discharge excess ozone;
An ozone water discharge pipe communicating with the lower part of the gas room to discharge water flowing into the gas room,
A discharge valve installed in the ozone water discharge pipe, and
It is installed at the end of the ozonated water discharge pipe connected to the sewer pipe of the building, and in order to clean the tip of the sewer pipe with the highest pollution level among the sewer pipes, transition metals or metal oxides are accommodated so that OH radicals with better oxidizing power than ozone are generated from ozone water. A water supply pipe cleaning device using ozone including an OH radical generation tank. The method of claim 1,
An injector installed in a building water supply pipe located behind the washing water generating unit to provide a space in which oxygen bubbles and washing water are mixed; And
A water supply pipe cleaning apparatus using ozone, further comprising a compressor for injecting compressed oxygen into the injector. delete The method of claim 1, wherein the washing water generating unit
A liquid room pressure gauge installed at an outlet of the liquid room from which the washing water is discharged to measure an outlet pressure of the liquid room;
A gas room pressure gauge installed at an outlet of the gas room from which the excess ozone is discharged to measure an outlet pressure of the gas room; And
A water supply pipe cleaning apparatus using ozone, further comprising: a pressure adjusting means installed in the ozone discharge pipe and adjusting the pressure inside the gas room based on the pressure measured by the liquid room pressure gauge and the gas room pressure gauge. delete The method of claim 1, wherein the washing water generating unit
A dissolution tank in which water and ozone are introduced into the lower portion and washing water is discharged from the upper portion;
Bubbles in which a plurality of dissolution tanks are installed in the dissolution tank according to the movement direction of the washing water to divide the interior of the dissolution tank into a plurality of spaces, and a plurality of through holes having a diameter gradually decreasing according to the movement direction of the washing water are provided. Thumbnails; And
A water supply pipe cleaning apparatus using ozone, further comprising a discharge valve provided above the dissolution tank and discharging excess ozone accommodated in the dissolution tank to the outside. A pretreatment step of generating ozone by the ozone generator and supplying it to the washing water generating unit, and supplying water stored in the water tank to the washing water generating unit;
A washing water generating step of generating washing water containing ozone by mixing ozone supplied from the ozone generator and water supplied from the water tank;
An oxygen injection step of introducing oxygen compressed by a compressor into an injector installed on a building water supply pipe through which the washing water is transported so that oxygen bubbles are included in the washing water; And
The circulation pump installed in the water supply pipe of the building includes a common pipe cleaning step of cleaning the water supply pipe of the building by transporting the washing water containing oxygen bubbles along the water supply pipe of the building,
The washing water generation step
When the water flowing into the dissolution tank passes through the liquid room divided by the gas permeable membrane, the liquid room pressure gauge measures the outlet pressure of the liquid room and transmits it to the control unit. When the gas flowing into the dissolution tank passes through the gas permeable membrane, the gas The pressure measurement process in which the room pressure gauge measures the outlet pressure of the gas room and transmits it to the control unit,
A pressure analysis process in which the control unit compares and analyzes the outlet pressure of the liquid room and the outlet pressure of the gas room, generates a control signal requesting pressure adjustment of the gas room according to the outlet pressure of the liquid room, and provides it to the pressure control means,
A pressure adjusting process in which the pressure adjusting means adjusts the flow rate of the excess ozone gas in the gas room according to a control signal provided from the control unit so that the pressure in the gas room is close to the outlet pressure of the liquid room;
When the discharge valve installed in the ozone water discharge pipe discharges the ozone water flowing into the gas room through the liquid room under the control of the control unit to the outside of the dissolution tank through the ozone water discharge pipe, the ozone water discharge process, and
After the OH radical generation tank installed at the end of the ozonated water discharge pipe is moved along the ozone water discharge pipe, OH radicals having an oxidizing power superior to ozone are moved to clean the tip of the sewer pipe with the highest pollution level among the sewer pipes as transition metals or metal oxides are accommodated. A method for cleaning contaminated pipes using ozone, including the process of generating OH radicals that are generated based on ozone water discharged from sewer pipes. According to claim 7, After the common pipe cleaning step
When a usage signal is received from the usage detection sensor installed in the first water meter of the building, the control unit controls the three-way valve provided in the vicinity of the first water meter to inject the washing water into the first water meter, and the first water meter is Polluted pipe cleaning method using ozone, characterized in that it further comprises a household pipe cleaning step of cleaning the water supply pipe of the household to be managed.

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