JPH01210094A - Ultra pure service water treatment and its facility - Google Patents

Abstract

PURPOSE:To obtain drinking water high quality, by sterilizing drinking water by the irradiation of high energy electron beam, and after magnetic treatment, filtering the water by a filter with high capability. CONSTITUTION:Electron beams are irradiated to drinking water by an electron beam irradiation apparatus 6, and magnetic field as well is applied to the water by a magnetic field generating means 7 so as to sterilize the drinking water. Then, the drinking water is filtrated through a filtration apparatus 9 having a filter with a high capability to filter sterilized various micro germs, adsorb malodor, and supply clean treated-water. And then, the treated water is stored in a storage tank 11 and cooled to proper temp. by a cooling coil 12 of a refrigerator 13 to impart a good taste to the drinking water. The treated water cooled by this way is led to a carbonic acid gas mixing apparatus 15 by a circulating pump 14 and carbonic acid gas as micro foams from a carbonic acid gas pump 16 is mixed with the treated water to supply an ultra fine service water. The ultra fine service water is returned to circulation route 20 through a feed port 18 of the carbonic acid gas mixing apparatus 15 and circulated to return to a circulating entrance 19 of the storage tank 11 while supplied to each faucet 21.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is for treating drinking water in housing complexes, etc. to produce safe and delicious drinking water, that is, super clean water, and to circulate and supply this to each required location. This invention relates to a super clean water treatment method and a super clean water facility.

[Conventional technology]

In recent years, the deterioration of the quality of drinking water has become a problem as water sources deteriorate due to environmental changes. Therefore, various water purifiers have become commercially available, but most of these are simple water purifiers that are attached to the faucet at the end of the drinking water supply system and use activated carbon or other filtration methods. Recently, products that are said to improve water quality using magnetic lines of force have also been commercialized. However, the sterilizing effect of these water purifiers is questionable, and for example, Japanese Patent Laid-Open Publication No. 58-216781 discloses a technology that sterilizes drinking water by irradiating it with ultraviolet light after filtering it through a filter medium. There is.

[Problem to be solved by the invention]

However, with conventional simple water purifiers that use a filtration method using activated carbon, etc., as the period of use increases, the activated carbon's performance deteriorates and bacteria can grow, and the ultraviolet rays can cause sterilization. When carrying out water purification, ultraviolet rays naturally have a weak penetrating power into water, and if the water quality is poor and contains many impurities, the penetrating power becomes weaker and the sterilization effect becomes smaller. There was a problem in that it was difficult to continuously supply a large amount of.

This invention was made in view of these conventional problems, and involves treating drinking water with ultra-clean water by irradiating it with electron beams, etc., and treating this ultra-clean water without creating stagnant water. The aim is to solve the above problems by circulating supply, etc.

[Means to solve the problem]

In order to achieve the above object, in the present invention, after irradiating drinking water with an electron beam having a sterilizing effect and applying a magnetic field to improve water quality, the treated water obtained by filtering with a filter is This is a super-clean water treatment method that maintains the water at a predetermined temperature and mixes carbon dioxide gas to produce super-clean water.

In addition, the equipment used in carrying out the method includes a treatment device for treating potable water, which includes an electron beam irradiator, a magnetic field generating means, and a filter, a water storage tank for storing the treated water obtained by this treatment device, and a treatment device. A super clean water device consisting of a cooling means that cools water to a predetermined temperature and a carbon dioxide gas mixer that mixes carbon dioxide gas into this treated water, and a super clean water system that circulates and supplies the super clean water to required locations and also to the water storage tank. A super clean water facility is equipped with a circulation pipe for returning water.

It is preferable that the water storage tank is provided with a ventilation pipe for adjusting the gas pressure in the tank, which increases or decreases as the amount of water stored in the tank increases. It is advisable to install an air bag made of an elastic material that can be expanded or contracted in an airtight manner depending on the situation.

It is also preferable to attach an air filtering means having a sterilizing effect to the end of the ventilation pipe in place of the air bladder.

Furthermore, a branch pipe for supplying super clean water is provided in a bypass manner in the circulation pipe, and the inner diameter of the circulation pipe between the inlet side and the outlet side of the super clean water to the branch pipe is divided. It is also preferable to make the diameter smaller than the inner diameter of the pipe, and to attach a faucet directly to this branch pipe.

[Effect]

A large amount of drinking water is continuously sterilized and then filtered under the action of a magnetic field to obtain treated water from which odors and organic substances are removed. Then, in order to add the deliciousness of drinking water, the water is cooled to an appropriate temperature and carbon dioxide is mixed into the water to obtain high-quality super clean water.

Since the potable water that has become super clean water is constantly being supplied through the circulation pipe, stagnation of water does not occur even at the end of the water supply. Therefore, the harmful effects of algae and debris that occur in stagnant areas as in the past do not occur. In addition, since the circulating water always returns to the water tank, it is cooled again and mixed with carbon dioxide when necessary, making it possible to always supply high-quality super clean water.

The water tank can adjust the gas pressure inside the tank by means of a vent pipe, which increases or decreases as the amount of water stored in the tank increases or decreases, so that water can smoothly flow in and out of the tank. By attaching an air bag to the end of the ventilation pipe, the inside and outside of the tank are isolated, so there is no risk of the water in the tank being contaminated by outside air, and the air bag has a sterilizing effect at the end of the ventilation pipe. When a filtration means is installed, although air enters from outside the tank, the air entering the tank is filtered and sterilized, so there is no risk of contaminating the water in the tank.

Furthermore, a branch pipe for supplying super clean water is provided in a detour manner in the circulation pipe, and the inner diameter of the circulation pipe between the inlet side and the outlet side of the super clean water to the branch pipe is divided. By making it smaller than the inner diameter of the pipe, the flow resistance of the circulation pipe is increased and the detour of super clean water to the branch pipe is made smooth.

Furthermore, by attaching a faucet directly to this branch pipe, circulating water is constantly supplied to the faucet, so there is no dead water here, and whenever you open this faucet, you will always receive fresh water. can be used.

〔Example〕

The present invention will be explained below based on the drawings.

1 and 2 are schematic diagrams showing an example in which the present invention is applied to an apartment complex, a building, etc., and FIG. 2 shows an example in which the circulation pipe in FIG. 1 is configured in a complicated manner. It is something that

In the figure, reference numeral 1 denotes a water tank, which is supplied with city water from a city water main (not shown). Reference numeral 2 denotes a water pump that pumps city water in the water tank 1 to the elevated water tank 4 via piping 3. The pumped city water is given potential energy and is supplied to various locations through water supply pipes (not shown), regardless of the pumping pressure of the pump 2. 4a is a water level gauge, which detects the amount of water in the elevated water tank 4 and controls the water pump 2.

The above are existing water supply facilities in apartment complexes, etc. The equipment according to the present invention will be explained below.

City water (drinking water) in the elevated water tank 4 is pumped through the electron beam irradiator 6 by a supply pump 5 at a speed of, for example, 6 to 30 m/min. As shown in FIG. 7, the electron beam irradiator 6 of the embodiment is equipped with a scanning type accelerator having an output of at least 200 to 300 KeV, and by irradiating drinking water with this electron beam, organic matter in the water is completely removed. It has been confirmed by electron microscopy that it is decomposed, and therefore bacteria are completely sterilized. Note that the drinking water pipes used during this irradiation are thin-walled in order to increase the transmission efficiency of the electron beam. In FIG. 7, 6a is a high energy cable, 6b is a filament, 6C is an acceleration section, 6d is an electric resistance section, and 6e is a built-in SF6 gas, which constitute the accelerator. Further, 6r indicates a magnet, and 6h indicates an electron beam irradiation part, and the area indicated by a broken line 61 is an inert gas atmosphere. 8 is a pipe, and the drinking water passing through this pipe is irradiated with an electron beam as described above.

In Figure 1.2, 7 is a magnetic field generating means, and the magnetic field is installed so that magnetism is generated in a direction perpendicular to the pipe 8, and the water is subjected to this magnetic action to atomize impurities. , and its medical significance is generally recognized as it slows down the deterioration of water. However, as for the strength of the magnetic field at this time, a magnetic flux density of about 500 to 2000 Gauss is effective. Further, the magnetic field generating means is a permanent magnet, an electromagnet, or the like formed into a shape that meets the above conditions.

Reference numeral 9 denotes a filter equipped with a high-performance filter, which filters out microscopic bacteria that have been sterilized by the electron irradiator 6, and produces clean treated water that also absorbs odors and the like. The above parts, 5. 6. 7. 8.9 constitutes a processing device A.

The treated water cleaned by treatment equipment A is 2, and the pipe 1
0 to the water storage tank 11. 12 is a cooling coil forming a cooling part of the refrigerator 13, - water storage tank 1;
The treated water stored in 1 is cooled to an appropriate temperature. The optimum temperature for drinking water is 15-20"C.
Especially in the summer, the elevated water tank 4 reaches a high temperature and therefore needs to be cooled.

Next, the cooled treated water is sent to a carbon dioxide gas mixer 15 by a circulation pump 14, and carbon dioxide gas supplied from a carbon dioxide gas cylinder 16 is mixed therein in the form of fine bubbles. In this example, urethane and pumice are used.

A porous body 17 made of perforated ceramic or the like is disposed in the carbon dioxide mixing device 15, and by blowing through the porous body 17, fine carbon dioxide gas bubbles are stably contained and a bright flavor is imparted. It is said to be super clean water. The above parts 11 to 1
7 constitutes the super clean water device B. FIG. 8 is a diagram showing another example of the carbon dioxide gas mixer 15. That is, 15a is the main body, 15b is the carbon dioxide gas inlet, 15c is the water inlet,
15d is a water outlet, 15e is the same porous body as the porous body 17 of the previous example, and 15f is a mesh that promotes mixing.

Next, the super clean water is sent from the water supply port 18 of the carbon dioxide gas mixer 15 to the circulation pipe 20, and is circulated while being supplied to each faucet 21, and then returns to the water return port 19 of the water storage tank 11. .

3.4.5 is an overall side view and a partial view of the water storage tank 11, and FIG. 3 is a closed type water storage tank, and the gas inside the tank increases and decreases as the treated water in the water tank 11 increases and decreases. 31 is airtightly attached to the distal end of the vent pipe 32 in order to adjust the pressure of the vent pipe 31 in a sealed state. The reason for airtight installation is to prevent contamination of clean water due to infiltration of outside air.

Figure 4 shows a similar open water storage tank for preventing contamination of clean water, and is equipped with an air treatment device 34 that allows air to pass through, the details of which are shown in Figure 5. After passing through the carbon filter 34a and the activated carbon filter 34b, the water is sterilized by a germicidal lamp 34c, and then passed through the ventilation pipe 32 to the water storage tank 11.
Since the inside of the tank is designed to be able to enter inside, contamination inside the tank is completely prevented.゛Figure 6 shows a branch pipe 2 provided bypassing the circulation pipe 20.
2 is a detailed view of the part where the faucet 21 is directly attached, and the branch pipe 22 is an upstream part 22a that supplies clean water from the circulation pipe 20 to the faucet 21, and a part where the water circulates from the faucet 21 position. The bypass part 20a, which is a part between the upstream part 22a and the downstream part 22b of the circulation pipe 20, which flows in the direction of the pipe line 20, has an inner diameter extending toward the upstream part 22a. By forming the inner diameter smaller than the inner diameter on the upstream side of the branching point, the drop in flow rate in the branch pipe 22 as in the conventional case is prevented.

FIG. 9 shows a conventional branch pipe 42, which is provided with an upstream part 42a, a downstream part 42b, and a branch pipe 42C branching from the branch pipe 42, and the faucet 41 is connected to this branch pipe 42C. attached to the tip. Therefore, the faucet 41
While the branch pipe 42c is not used, the water in the branch pipe 42c remains stagnant, becoming so-called dead water, and if this state continues for a long time, the dead water will eventually rot and bacteria will grow, causing problems.

FIG. 2 shows a case where the configuration of the circulation pipe 20 is complicated due to the large number of supply points.
is configured as a parallel circuit, so carbon dioxide mixer 1
The super clean water supplied from the water supply port 18 of No. 5 connects the above parallel circuit to -
The water flows at a similar flow rate, returns to the water return port 19 of the water storage tank 11, is cooled again, and is mixed with carbon dioxide gas for circulation, so that there is no stagnation of water throughout the pipe system. Therefore, super clean water can always be supplied to any location in a fresh state, no matter how complicated the configuration of the circulation pipes.

Incidentally, the increase or decrease of water in the water tank 11 is detected by the water level gauge 11a, and the water supply pump 5 is controlled and operated.
Treated water is smoothly supplied to the water storage tank 11.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the following effects.

(1) Drinking water can be completely sterilized by high-energy electron beam irradiation at a larger flow rate than before, and it can also be filtered with a high-performance filter after magnetic treatment.
At this point, treated water that can be supplied as drinking water is already obtained which has high quality water.

(2) The treated water is further cooled to an appropriate temperature and mixed with fine carbon dioxide gas bubbles to become super clean water, which not only has high quality but also has a refreshing taste, and can also be used as water for special drinking purposes. .

(3) Since the water tank can adjust the gas pressure in the tank, which increases or decreases as the amount of water stored in the tank increases or decreases, by means of a ventilation pipe, water can smoothly flow in and out of the tank. By attaching an air bag to the end of the ventilation pipe, the inside and outside of the tank are isolated, so there is no risk of the water in the tank being contaminated by outside air, and the air bag has a sterilizing effect at the end of the ventilation pipe. When a filtration means is installed, air enters from outside the tank, but the air entering the tank is filtered and sterilized, so there is no risk of contaminating the water inside the tank.

(4) Furthermore, a branch pipe for supplying super clean water is provided in a bypass manner in the circulation pipe, and a flow path of the circulation pipe between the inlet side and the outlet side of the branch pipe for super clean water. By making the inner diameter smaller than the inner diameter on the upstream side of the branch point to the branch pipe, the flow resistance of the circulation pipe is increased and the detour of super clean water to the branch pipe is made smooth.

(5) Also, by attaching a faucet directly to this branch pipe, circulating water is constantly supplied to the faucet, so there is no dead water, so it is always fresh. Moreover, it can be supplied continuously and in large quantities without reducing the flow rate or water pressure at each faucet position.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of an embodiment according to the present invention, Fig. 2 is a schematic diagram of another embodiment, Fig. 3 is a side view of a closed type water tank, and Fig. 4 is a characteristic part of an open type water tank. 5 is an enlarged cross-sectional view of the air treatment device in FIG. 4, FIG. 6 is a detailed perspective view of the branch pipe installed in the circulation pipe, and FIG. 7 is a diagram showing other parts of the electron beam irradiator. An explanatory diagram showing an example, FIG. 8 is a perspective view showing another example of a carbon dioxide gas mixer, and FIG. 9 is a perspective view of a branch pipe in a conventional example. 6...Electron beam irradiator, 7...Magnetic field generating means, 9...Filter, 11...Water tank, 12... Cooling coil, 13... Refrigeration a (cooling means), 15... Carbon dioxide mixer, 2
0... Circulation pipe. Patent applicant Taisei Corporation Agent Patent attorney Tetsuya Mori Attorney Yoshiaki Naito Attorney Patent attorney Tadashi Shimizu

Claims (7)

[Claims] (1) After irradiating drinking water with an electron beam and applying a magnetic field, the treated water obtained by filtering it through a filter is maintained at a predetermined temperature and mixed with carbon dioxide gas to make super clean water. A super clean water treatment method. (2) A treatment device that turns drinking water into treated water, consisting of an electron beam irradiator, a magnetic field generating means, and a filter, a water storage tank that stores the treated water obtained by this treatment device, and a cooling of the treated water to a predetermined temperature. A super clean water device comprising a cooling means and a carbon dioxide gas mixer for mixing carbon dioxide gas into the treated water, and a circulation pipe that circulates and supplies the super clean water to required locations and returns it to the water storage tank. Super clean water facilities. (3) Claim 2, wherein the water tank is provided with a ventilation pipe for adjusting the gas pressure in the tank, which increases or decreases as the amount of water stored in the tank increases or decreases.
Super clean water facilities as described in section. (4) The super clean water facility according to claim 3, wherein an air bladder made of an elastic material that can expand and contract in response to increases and decreases in the gas pressure in the tank is airtightly attached to the end of the ventilation pipe of the water tank. (5) The super clean water facility according to claim 3, wherein an air filtration means having a sterilizing effect is attached to the end of the ventilation pipe of the water storage tank. (6) A diversion pipe for supplying super clean water is provided in the circulation pipe in a detour manner, and the inner diameter of the circulation pipe between the inlet side and the outlet side of the super clean water to the branch pipe is set as a diverter pipe. 3. The super clean water facility according to claim 2, wherein the inner diameter is smaller than the inner diameter on the upstream side of the branch point. (7) The super clean water facility according to claim 6, wherein a water faucet is attached directly to the branch pipe of the circulation pipe.