JPH0455758B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a magnetic treatment device for removing or preventing scale from aqueous systems.

(Prior Art) Conventionally, it has been known to pass aqueous water through a strong magnetic field for the purpose of removing or preventing scale from adhering to the aqueous system. By passing water through a magnetic field in this way, the water molecules and each ion of mineral substances in the water are subjected to magnetic induction according to Faraday's laws of magnetohydrodynamics, and the dissolved solids or ions in the water system are The effect of magnetic treatment of water is that it causes a change in the form of something that is already crystallized as a solid. Recently, this magnetic treatment effect has been used to magnetically treat water systems for the purpose of removing scale (water scale) adhering to the pipe walls of water systems that supply water for daily life such as buildings and condominiums, and for the purpose of preventing scale adhesion. This is becoming more and more common.

Recently, in the above-mentioned magnetic treatment of water systems, by passing the water before magnetic treatment through the Maifan stone layer, mineral substances are eluted from the Maifan stone into the water to be treated. It has been proposed to improve the magnetic treatment effect by increasing the amount of inorganic substance ions and increasing the extent to which water is magnetized by magnetic treatment, that is, the magnetic activation of water.

(Problem to be Solved by the Invention) The above-mentioned magnetic activation of water depends not only on the strength of the magnetic field, the amount of inorganic ions contained in the water, and the residence time of the flowing water within the magnetic field, but also on the passage of water through the magnetic field. It is also greatly influenced by the current water flow rate. for example,
When the flow rate of water is 0.8 m/sec or more, the effect of magnetic treatment becomes noticeable, and the phenomenon in which the scale stuck to the wall of the water supply pipe is removed by magnetic treatment is observed. As a result of experiments, it was confirmed that when the magnetic field was reduced to 0.5 m/sec, no scale removal effect was observed even with magnetic treatment, and the scale remained fixed as in the case without magnetic treatment. There is.

Therefore, in a magnetic treatment device installed in a water system for industrial use where the amount of water used is substantially constant, it is possible to maintain the flow rate within a predetermined preferred range and always obtain a high magnetic treatment effect. be. However, in the case of domestic water, the number of faucets used among the many faucets in each household is undefined, and therefore the amount of water flowing through the main pipe is not constant. In this way, because the amount used is not constant, the flow rate of water passing through the magnetic treatment device is also not constant and varies greatly, and as a result, even though the magnetic treatment device is installed, the desired magnetic treatment cannot be achieved. There are cases in which there is no effect, the scale removal efficiency is low, scale removal requires a relatively long period of time, and new scale may adhere.

The purpose of the present invention is to solve the above-mentioned problems, and by maintaining the flow velocity in a magnetic field above a specific value, the desired magnetic treatment effect can always be produced even in applications where the amount used varies greatly, such as in domestic water. We are trying to provide a magnetic processing device that can obtain the desired results.

Another object of the present invention is to provide a system which is constructed and arranged so as to substantially completely remove harmful substances such as mercury, cadmium, Escherichia coli, and staphylococcus, as well as chlorine normally contained in domestic water. The present invention aims to provide a water-based magnetic treatment device.

(Means for Solving the Problems) According to the present invention, as shown in FIG. In the magnetic processing device, the magnetic processing device 3 includes a cylindrical outer case 30 made of a magnetic material, and a plurality of first to n-th annular magnet devices 31 to 34 are arranged vertically on the central axis inside the outer case. The outer casing lower end wall 35 and the sequential magnet device 3 are arranged
1 to 34 are vertically spaced apart from each other at equal intervals to define radial water channels 36 to 39 having the same cross-sectional area between the lower end wall and each of the magnet devices 31 to 34, respectively;
Each annular magnet device is composed of an annular permanent magnet and magnetic pole plates attached to the upper and lower ends of the annular permanent magnet. Annular ascending water channels 41 to 44 are provided, and the annular ascending channels 41 to 4
4 is the first width of the outer periphery of the first magnet device 31 at the lowest position.
If the cross-sectional area of the annular rising water channel 41 is 1, then the second to
Annular rising channels 42 to 4 of magnet devices 32 to 34 of n
A cylindrical hollow float valve 46 is provided in a center hole 45 passing through the centers of the first to n-th annular magnet devices 31 to 34. The float valve 46 is fitted into the first annular magnet device 31 so as to be able to rise and fall freely.
The float valve 46 is supported by a protrusion 47 projecting into the center hole 45 at its upper end, and in this supported state, the float valve 46 closes the second to fourth radial water channels 37 to 39 and only the first radial water channel 36. is opened to the center hole 45, so that even if the flow rate in the water system changes, the flow rate of water passing through the magnetic field of the magnetic treatment device is maintained at a predetermined value or higher.

Further, according to the present invention, the inlet 5 of the magnetic processor 3
A mineral elution treatment tank 7 having a Maifan stone layer 6 inside thereof is connected to the upper end thereof, and a permanent magnet is connected to feed aqueous water to the lower end 6a of the Maifan stone layer 6 in this mineral elution treatment tank 7. Preliminary magnetic activator 8 that allows aqueous water to pass through the magnetic field formed by
It is good to have a

Further, according to the present invention, in a magnetic treatment device configured to magnetically process water in an aqueous system by passing it through a magnetic field formed by a permanent magnet, the cross-sectional area of the water channel in the magnetic field is equal to the flow rate in the aqueous system. The magnetic field can be configured to be changed in accordance with the change, thereby maintaining the flow rate of water passing through the magnetic field at a predetermined value or higher.

(Function) According to the present invention, the cross-sectional area of the water channel within the magnetic field changes in accordance with changes in the flow rate in the water system, thereby maintaining the flow velocity of water passing through the magnetic field of substantially constant strength at a predetermined value or higher. can do.

That is, when the flow rate in the water system is low, water flows from the lower end inlet 5 to the first annular ascending channel 41 via the first radial channel 36. in this case,
The cross-sectional area of the first annular upward flow path 41 can be determined so that the flow velocity is, for example, 1 m/sec. The strength of the magnetic field 41B in the first annular upward flow path 41 is mainly determined by the distance between one permanent magnet 31A, the pole plates 31a, 31b, and the inner circumferential wall 40 of the outer casing.

Now, when the flow rate increases, the float valve 46 is correspondingly pushed up by the water into the central hole 45, and as the flow rate increases, the second, third and fourth radial channels 37, 38 , 39 are opened sequentially. For example, when the flow rate changes from V/sec to 2V/sec, the second radial water channel 37 is opened, and in this case, water flows into each of the first and second radial water channels 36 and 37 having the same cross-sectional area. It flows in at a flow rate of V/sec. Water with a flow rate of V/sec that has flowed into the first radial water channel 36 passes through the first annular ascending channel 41 with a cross-sectional area A and rises in the first magnetic field 31B at a flow velocity v of a predetermined value or more, Directional waterway 3
The water flowing into 7 with a flow rate of V/sec joins, and the flow rate becomes
The water at 2 V/sec passes through the second annular ascending channel with a cross-sectional area of 2A and rises in the second magnetic field 38B at a flow rate v that is substantially the same as that in the first magnetic field 31B and is equal to or greater than a predetermined value.
Then, the pole plate 32 in this second magnetic field 32B
Although the distance d ₂ between a, 32b and the inner circumferential wall 40 of the outer casing is larger than d ₁ , the strength of the second magnetic field is increased because the second magnetic field 32B is formed by the two permanent magnets 32A. The field strength is substantially equal to the strength of the first magnetic field, thereby achieving the desired magnetic activation.

In this way, the flow rate of water in the magnetic field of the magnetic treatment device can be maintained at a predetermined value or higher even if the flow rate in the water system changes, so the magnetic activation of the water can be maintained constant and the desired magnetic field can always be achieved. It is possible to produce a treatment effect, thereby increasing the scale removal efficiency, shortening the period required for scale removal, and reliably preventing the adhesion of new scale after scale removal.

According to the present invention, by providing a preliminary magnetic activator, the water flowing into the treatment tank is activated and a sterilizing effect is generated against harmful impurities such as Escherichia coli and Staphylococcus bacteria contained in the water. Therefore, the ion exchange efficiency of Maifan stone is increased to enhance the mineral elution effect, and on the other hand, harmful impurities such as chlorine, mercury, cadmium, and bacteria are adsorbed to Maifan stone, and a large amount of useful inorganic ions are released from Maifan stone. can be released. In addition, it increases the sedimentation rate of microdispersed suspended matter in water to increase the filtration efficiency of the Maifan stone layer, facilitate the filtration of suspended impurities, and prevent the growth of bacteria adsorbed to the Maifan stone. I can do it.

(Embodiment) FIG. 1 shows one embodiment of the present invention. In the illustrated example, a water pipe 11 that supplies water stored in a pressure water tank such as an elevated water tank (not shown) is connected to the upper end inlet 13 of the preliminary magnetic activator 8 via a valve 12.

As shown in FIG. 2, the preliminary magnetic activator 8 has a cylindrical outer case 14 made of a magnetic material, and a plurality of permanent magnets 1, for example, two permanent magnets 1, are arranged on the central axis inside the outer case.
5 and 16 are installed vertically in a magnetic pole arrangement of N, S, S, N from the top. These upper and lower permanent magnets 15 and 16 have pole plates 1 at their upper and lower ends, respectively.
7, 18 and 19, 20 are attached, and a synthetic resin plate 21 made of a diamagnetic material is inserted between the adjacent pole plates 18, 19 of the upper and lower permanent magnets 15, 16.
Outer edges 17a, 18 of 7, 18 and 19, 20
a, 19a, and 20a are separated from the inner circumferential wall surface 22 of the outer casing by an appropriate distance to define waterways 23 and 24. Therefore, the magnetic fields 25 and 26 formed by the permanent magnets 15 and 16, respectively, are applied to the water channel 2.
3 and 24 are provided across the cylindrical outer case 14, so that water flowing into the preliminary magnetic activator 8 from the upper end inlet 13 of the cylindrical outer casing 14 passes through the water channels 23 and 24 and into the magnetic fields 25 and 26 as shown by the arrows. The structure is such that the water in the aqueous system containing ions of calcium and other substances is magnetically activated by flowing downward.

Outlet 27 at the lower end of the outer casing of the above-mentioned preliminary magnetic activator 8
The magnetically activated water exiting from the mineral leaching tank 7 is conveyed via a conduit 28 to the bottom of the mineral elution tank 7. At the bottom of this mineral elution tank 7, a Maihan stone layer 6 is provided with a predetermined thickness. Therefore, the magnetically activated water is sent to the lower part 6a of the Maifan stone layer 6, and the Maifan stone layer 6
As it flows upward, useful mineral substances from the Maifan stone are actively eluted into the water, and harmful impurities contained in the water are adsorbed and filtered by the Maifan stone.

Maihan stone is a type of rock that belongs to the quartzite group.
This is for water that is mainly composed of alkali feldspar and quartz, and contains a lot of minerals, including silicic anhydride, aluminum oxide, ferric oxide, ferrous oxide, magnesium, calcium oxide, sodium, potassium, etc. It has an adjustment function that adsorbs minerals and replenishes them by dissolving them into water if they are insufficient. Furthermore, it is porous and adsorbs not only chlorine, mercury, cadmium, etc., but also Escherichia coli, staphylococcus, etc., and is known to have sterilizing power against bacteria.

A lower end inlet 5 of the magnetic processor 3 is opened in the space above the mineral elution treatment layer 7 described above.

As shown in FIG. 3, the magnetic processing device 3 has a cylindrical outer case 30 made of a magnetic material, and has a plurality of annular grooves, for example, four annular grooves, first to fourth, on the central axis inside the outer case. The magnet devices 31 to 34 are arranged in the vertical direction, and the lower end wall 35 of the outer casing and the successive magnet devices 31 to 34 are spaced apart from each other at the same distance in the vertical direction, so that the lower end wall 35 and each of the magnet devices 31 to 34 are spaced at the same distance, respectively. First to fourth radial water channels 36 to 39 of cross-sectional area are defined.

The first annular magnet device 31 is composed of one annular permanent magnet 31A arranged with the S pole facing downward, and magnetic pole plates 31a and 31b attached to the upper and lower ends of the annular permanent magnet 31A, and the outer peripheral edges of the magnetic pole plates 31a and 31b. is the width d ₁ passing through the magnetic field 31B formed by the first annular magnet device 31, which is spaced a distance d ₁ from the inner circumferential wall surface 40 of the outer casing.
A first annular ascending waterway 41 is provided.

The second annular magnet device 32 is composed of two annular permanent magnets 32A stacked with the N pole on the lower side, and magnetic pole plates 32a and 32b attached to the upper and lower ends,
The outer periphery of the magnetic pole plates 32a and 32b is the inner wall surface 4 of the outer case.
a second annular magnet device 32 spaced a distance d ₂ from zero;
A second wave of width d ₂ passing through the magnetic field 32B formed by
An annular rising water channel 42 is provided.

Similarly, the third and fourth annular magnet devices 33
and 34 are respectively constituted by three and four annular permanent magnets 33A and 34A and magnetic pole plates 33a, 33b and 34a, 34b attached to the upper and lower ends, respectively, and third and third magnets with widths d ₃ and d ₄ , respectively. Fourth annular rising water channels 43 and 44 are defined by the outer peripheral edges of the magnetic pole plates 33a, 33b and 34a, 34b and the inner peripheral wall surface 40 of the outer casing.

The widths d ₁ to _{d 4} of the first to fourth annular ascending channels 41 to 44 are such that if the cross-sectional area of the first annular ascending channel 41 is 1, then the cross-sectional area of the second to fourth annular ascending channels 42 to 44 is the first They are selected to be larger in order so as to be twice to four times larger than the annular ascending waterway 41, respectively.

A cylindrical hollow float valve 46 is installed in a center hole 45 passing through the center of the first to fourth annular magnet devices 31 to 34.
is inserted so that it can be raised and lowered freely. This float valve 4
6 is the center hole 45 at the upper end of the first annular magnet device 31;
supported by a projection 47 projecting inward;
Therefore, in this state, the float valve 46 closes the second to fourth radial water channels 37 to 39, and only the first radial water channel 36 is open to the center hole 45.

The magnetic processor 3 configured as described above has a structure in which the cross-sectional area of the water channel in the magnetic field changes according to changes in the flow rate in the water system, as described in the section (Means for solving the problem) of this specification. The magnetic field is configured to maintain the flow rate of water passing through the magnetic field having a substantially constant strength above a predetermined value.

That is, when the flow rate in the water system is low, water flows from the lower end inlet 5 to the first annular ascending channel 41 via the first radial channel 36. in this case,
The first annular ascending channel 41 is arranged so that the flow velocity is 1 m/sec.
A cross-sectional area of is selected. The strength of the magnetic field 41B in the first annular upward flow path 41 is mainly determined by the distance between one permanent magnet 31A, the pole plates 31a, 31b, and the inner circumferential wall 40 of the outer casing.

Now, when the flow rate increases, the float valve 46 is correspondingly pushed up by the water into the central hole 45, and as the flow rate increases, the second, third and fourth radial channels 37, 38 , 39 are opened sequentially. For example, when the flow rate changes from V/sec to 2V/sec, the second radial water channel 37 is opened, and in this case, water flows into each of the first and second radial water channels 36 and 37 having the same cross-sectional area. It flows in at a flow rate of V/sec. Water with a flow rate of V/sec that has flowed into the first radial water channel 36 passes through the first annular ascending channel 41 with a cross-sectional area A and rises in the first magnetic field 31B at a flow velocity v of a predetermined value or more, Directional waterway 3
The water flowing into 7 with a flow rate of v/sec joins, and the flow rate becomes
The water at 2 V/sec passes through the second annular rising water channel with a cross-sectional area of 2A and rises in the second magnetic field 32B at a flow rate v that is substantially the same as that in the first magnetic field 31B and is equal to or greater than a predetermined value.
Then, the pole plate 32 in this second magnetic field 32B
Although the distance d ₂ between a, 32b and the inner circumferential wall 40 of the outer casing is larger than d ₁ , the strength of the second magnetic field is increased because the second magnetic field 32B is formed by the two permanent magnets 32A. The field strength is substantially equal to the strength of the first magnetic field, thereby achieving the desired magnetic activation.

The magnetically activated water that has been subjected to the desired magnetic activation by the magnetic processor 3 as described above is sent from the outlet pipe 48 at the upper end of the magnetic processor 3 to the water supply pipe 50 via the valve 49. Flowingly connected.

Note that the Maifan stone layer 6 in the mineral elution tank 7 requires cleaning, for example, once every one to two months, so the cleaning water supply pipe 51 and the cleaning water drain pipe 52 are connected to the cleaning valves 53 and 54, respectively. It is connected to the mineral elution tank 7 via.

(Effects of the Invention) According to the present invention, it is possible to improve the magnetic treatment effect of a magnetic treatment device for domestic water in which the amount of aqueous water used varies greatly.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a magnetic processing apparatus according to the present invention;
2 is an enlarged vertical sectional view of the preliminary magnetic activator shown in FIG. 1, and FIG. 3 is an enlarged sectional view of the magnetic processor shown in FIG. 1. 1... Permanent magnet, 2... Magnetic field, 3... Magnetic processor, 4
... Predetermined flow rate maintaining means, 5... Inlet, 6... Maifan stone tank,
7... Mineral elution tank, 8... Preliminary magnetic active layer.

Claims (1)

[Claims] 1. A water-based magnetic treatment device comprising a magnetic treatment device that magnetically processes water by passing it through a magnetic field of a permanent magnet, wherein the magnetic treatment device includes a cylindrical outer box made of a magnetic material. A plurality of first to nth annular magnet devices are arranged vertically on the central axis within the outer case, and the lower end wall of the outer case and the successive magnet devices are spaced apart from each other at substantially the same intervals in the vertical direction. radial channels having substantially the same cross-sectional area are defined between the lower end wall and each magnet device, each annular magnet device being constituted by an annular permanent magnet and magnetic pole plates attached to the upper and lower ends of the magnet device. The outer peripheral edge of the device is spaced apart from the inner peripheral wall surface of the outer casing and is provided with an annular ascending water channel through which the magnetic field formed by the annular magnet device passes. If the cross-sectional area of the first annular ascending water channel is 1, then the cross-sectional area of the annular ascending channel of the second to nth magnet devices is equal to 2 of the first annular ascending channel.
A cylindrical hollow float valve is fitted into the center hole penetrating the centers of the first to n-th annular magnet devices so as to increase in size in multiples of The float valve is supported by a projection projecting into the center hole at the upper end, and in this supported state, the float valve closes the second to nth radial water channels, and only the first radial water channel is open to the center hole. A water-based magnetic treatment device, characterized in that the flow rate of water passing through the magnetic field of the magnetic treatment device is maintained at a predetermined value or higher even if the flow rate in the water system changes. 2. The apparatus according to claim 1, further comprising a mineral elution treatment tank having a Maifan stone layer therein, which is connected to feed water into the magnetic treatment device. 3 Equipped with a preliminary magnetic activator connected to have a magnetic field created by a permanent magnet inside to allow water to pass through, and to send magnetically treated water to the lower end of the Maifan stone layer in the mineral elution treatment tank. The magnetic processing device according to claim 2, characterized in that the magnetic processing device has the following characteristics: