JPH04323470A - Purifying device for pool water - Google Patents

Abstract

PURPOSE:To execute installation at site after manufacturing a unit by arranging at least either of an adsorption purifying means or a sterilizing means in a cylindrical filter, and forming them into one body. CONSTITUTION:Pool water is let flow from an inflow line 26 into a first housing 30 through an introducing pipe 34, passed through the wall from the outside of a ceramic filter 36 to flow into a second housing 38, and let flow out from a discharge pipe 40. Next, pool water is let flow into a sixth housing 62 from an introducing pipe 66, and sterilized with a lamp unit 64. Next, the sterilized pool water is let flow into a fifth housing 56, a fourth housing 50, and a third housing 42 from an introducing port 58. The pool water let flow in the third housing 42 is let flow down and bacteria and the like in the water are removed by adsorption to activated carbon 48, and the water is let flow into a return line 28 through a discharge pipe 46 to return to the pool.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pool water purification device that is compact and easy to install.

0002

BACKGROUND OF THE INVENTION With the recent fitness boom, swimming is becoming more popular as a full-body exercise suitable for improving health and relieving stress, and more and more people, regardless of age or gender, are becoming familiar with swimming pools.

[0003] Along with this, in order to enjoy swimming more safely and hygienically, there is increasing interest in the sanitary conditions of pools, especially water quality, and the demands on purification devices that determine the water quality of pools are becoming increasingly strict. As a result, performance and size are increasing.

[0004] Pool water purification devices generally include filtration devices that remove impurities such as dirt and hair contained in pool water.
It has an adsorption purification device, a sterilizing device for sterilizing pool water, etc., and if necessary, a device for supplying filter aid to the filtration device, and if it is a heated pool, a means for heating the pool water, etc. The pool water is normally circulated between the purifier and the pool to be purified and kept sanitary.

[0005]

[Problem to be Solved by the Invention] By the way, when constructing a new pool, there is a balance with other work such as construction of the pool itself, so it is desirable to make the installation work of the purification device on site as simple as possible. It is desirable to be able to complete the process in as short a time as possible. This is true even when replacing an existing pool purification device with a new device, and is especially important in the case of heated pools that are used all year round to shorten the so-called closing time. .

However, since pool water purification devices, especially high-performance ones with excellent purification ability, are large in size, there are various difficulties such as the need for large transportation means to transport such devices. Accompany. Moreover, pool water purification devices are usually installed in relatively small and restricted areas, and as mentioned above, they require multiple types of filtration devices depending on the purpose, various sterilization devices, adsorption devices, etc. It has several components, and the piping that connects these components becomes complicated. Furthermore, the use of machines and tools such as cranes and hoists is also restricted at the installation site. Therefore, the installation work of the purification device at the installation site is time-consuming and difficult.

An object of the present invention is to solve the problems of the prior art as described above, and satisfies the capabilities required of a pool water purification device, such as filtering out impurities and sterilization, and is compact and easy to install. Our goal is to provide an easy-to-use pool water purification device.

[0008]

[Means for Solving the Problems] In order to achieve the above object, a first aspect of the present invention is such that at least one of an adsorption purification means and a sterilization means are disposed inside a cylindrical filter and are integrated. To provide a pool water purification device characterized by:

A second aspect of the present invention is characterized in that at least one of the adsorption purification means and the sterilization means and the ultrafiltration means are arranged inside the cylindrical filter and are integrated. Provides pool water purification equipment.

Furthermore, in a third aspect of the present invention, at least one of the adsorption purification means and the sterilization means and the ultrafiltration means are arranged and integrated inside the cylindrical filter, and further, at least A pool water purification device having a backwashing means for an external filtration means is provided.

[0011] Furthermore, it is preferable that the cylindrical filter is a porous ceramic filter.

[0012] It is also preferable that the adsorption purification means uses at least activated carbon, and that the sterilization means uses ozone and ultraviolet rays.

Further, in the third aspect of the present invention, it is preferable that the backwashing means of the ultrafiltration means applies ultrasonic vibration.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The pool water purification apparatus according to the present invention will be described in detail below with reference to preferred embodiments shown in the accompanying drawings.

FIG. 1 conceptually shows a pool water purification system 10 to which a pool water purification apparatus (hereinafter referred to as a purification apparatus) according to a first aspect of the present invention is applied. Although the following explanation and illustrations are omitted, valves, cocks, three-way cocks, check valves, solenoid valves, etc. are arranged at necessary locations in the piping and each device of the purification system shown in the example, and pool water, etc. Of course, the flow path and flow rate are controlled. Additionally, a pool water heating device, a water storage tank, etc. may be provided as necessary.

The illustrated purification system 10 includes a pool 12
Basically, the purification device 14 of the present invention, a backwash device 16 for cleaning a ceramic filter disposed in the purification device, and a filter aid supply device 18 are used.
It consists of

[0017] In such a purification system 10,
Pool water from the pool 12 overflows and flows into an overflow tank 20, and is then flowed by a pump 22 into a prefilter 24 to remove large impurities such as hair and dirt. The pool water then flows into the purifier 14 through the inflow line 26 where it is highly purified, and then flows through the return line 2.
8 and returned to pool 12.

The pre-filter 24 may be any of various known pool filters, such as a carbon filter.

Here, the purification device 14 is related to the purification device of the first aspect of the present invention, and is formed by disposing at least one of an adsorption purification means and a sterilization means inside a cylindrical filter and integrating them. It has a configuration. FIG. 2 shows a schematic perspective view of such a purifying device 14, and FIG. 3 shows a schematic sectional view thereof.

The illustrated purifier 14 is composed of a total of six cylindrical housings.

The outermost first housing 30 has a cylindrical shape with a closed upper end surface, a flange 32 projecting inward is formed on the lower surface, and the above-mentioned inflow line is formed on the outer wall. Introductory pipes 34, 3 connected to 26
4 is formed.

A cylindrical porous ceramic filter (hereinafter referred to as a ceramic filter) 36 is provided inside the first housing 30, and the pool water is filtered by passing through the wall from the outside of the ceramic filter 36. It removes minute impurities such as oil emitted from the human body. The basic configuration of the purification device according to the first aspect of the present invention is that an adsorption purification means and/or a sterilization means, which will be described later, are arranged inside such a cylindrical filter, preferably the ceramic filter 36. It is something.

The ceramic filter 36 applied to the illustrated purification device 14 has three-dimensional extremely fine filtration spaces suitable for filtration of swimming pools, especially hot water pools, and filtration is impossible with conventional filters. Organic substances such as oil released from the human body can also be suitably filtered.

A second housing 38 is disposed inside the first housing 30. The second housing 38 forms a flow path for the pool water that has passed through the ceramic filter 36, and has a cylindrical shape, with pool water discharge pipes 40, 40 formed below the outer wall. In such a second housing 38, the inside of the wall forming a cylinder becomes a flow path for pool water. Therefore, the portion of the second housing 38 facing the ceramic filter 36 is open, allowing the pool water that has passed through the ceramic filter 36 to flow in.

A third housing 42 is disposed inside the second housing 38. The third housing 42 has a cylindrical shape in which the inside of the wall forming the cylinder serves as a flow path for the pool water, similar to the second housing 38 described above, and the upper end of the inner wall is connected to the fourth housing described later. It serves as an inlet 44 through which the pool water flows in, and a discharge pipe 46 connected to the return line 28 to the pool 12 is provided below the outer wall.
, 46 are formed.

This third housing 42 serves as an adsorption purification means of the purification device 14 of the present invention, and activated carbon 48 (and/or zeolite) is disposed inside the third housing 42 to absorb bacteria and the like decomposed by the sterilization means described later. adsorbs and removes these contained in pool water.

A fourth housing 50 is arranged inside the third housing 42. The fourth housing 50 has a cylindrical shape in which the inside of the wall forming a cylinder serves as a flow path for pool water, similar to the second housing 38 described above. Pipes 52, 52 are formed, and the upper end of the outer wall provides an outlet 54 to the third housing.

A fifth housing 56 is arranged inside the fourth housing 50. The fifth housing 56 has a cylindrical shape in which the inside of the wall forming a cylinder serves as a flow path for pool water, similar to the second housing 38 described above, and the upper end of the inner wall is an inlet where pool water flows. It has an opening 58, and discharge pipes 60, 60 are formed below the outer wall.

A sixth housing 62 is disposed inside the fifth housing 56. The sixth housing 62 has a cylindrical shape with an air inlet 63 at the lower end, has a lamp unit 64 in which an ultraviolet lamp and an ozone lamp are combined in the upper part of the interior, and has an upper surface through which water does not pass. However, an air bleed filter 65 through which air can pass is provided. That is, the sixth housing 62 is the purifier 1 of the present invention.
4 sterilization means, and air inlet 6 if necessary.
By introducing air from 3, the water is sufficiently bubbled and stirred, ozone is generated, and the pool water is sterilized by this ozone and ultraviolet rays.

Introductory pipes 66, 66 are formed below the outer wall of the sixth housing 62.

The illustrated purifying device 14 is formed by inserting the second to sixth housings into the first housing 30 and combining them. Inside the cylindrical ceramic filter 36, which is the basic structure of the
In addition, a lamp unit 64 serving as a sterilization means is arranged. With such a configuration, the purification device of the first aspect of the present invention can be made extremely compact despite having the adsorption purification means and/or the sterilization means. Furthermore, since these units can be integrated into a unit-like configuration, this unit can be installed on site after being manufactured, and installation work can be facilitated.

Illustrated example of purifying device 1 according to the first aspect of the present invention
4 is constructed from six housings, but the present invention is not limited to this, and may be constructed from more or fewer housings. Alternatively, each housing may be made into a cassette, and the purifying device may be configured in any combination. Furthermore, although the purifier 14 in the illustrated example has both an adsorption purification means and a sterilization means as a preferred embodiment, in the present invention, it is sufficient to have either one of them as described above.

Furthermore, the purification device of the present invention is not limited to being composed of one such purification device, but may of course be constructed by combining a plurality of purification devices into a unit. It is.

The purifying action of the pool water by such a purifying device 14 will be described below. Although omitted for the sake of simplifying the drawing and clarifying the explanation, it goes without saying that the respective inlet pipes and discharge pipes are connected by necessary piping.

The pool water from which large impurities such as hair and dirt have been removed by the pre-filter 24 flows into the first housing 30 from the inlet pipe 34 via the inlet line 26 and passes through the wall from the outside of the ceramic filter 36. The water is filtered to remove minute impurities such as oil emitted from the human body, flows into the second housing 38, and flows out of the housing through the discharge pipe 40.

Next, the pool water flows into the sixth housing 62 through the introduction pipe 66 and is sterilized by ozone and ultraviolet light generated by the lamp unit 64 while flowing upward.

The sterilized pool water flows into the fifth housing 56 through the inlet 58, descends, flows out of the housing through the discharge pipe 60, and flows into the fourth housing 5 through the inlet pipe 52.
0 and rises to the outlet 54 of the fourth housing 50.
(from the inlet 44 of the third housing) to the third housing 4.
2.

The pool water that has flowed into the third housing 42 flows down to the activated carbon 48 (and/or zeolite).
, bacteria and the like decomposed by ozone and ultraviolet rays are adsorbed and removed by the activated carbon 48 , flowed into the return line 28 through the discharge pipe 46 , and returned to the pool 12 .

The ceramic filter 36 applied to the illustrated purifying device 14 has very fine pores that can filter even oil released from the human body. Therefore,
If this ceramic filter 36 is used directly for filtration, the pores may become clogged and cleaning may become extremely difficult. Therefore, in the purification device 14 of the present invention, fibrous filter aids such as cellulose, pulp fiber, and asbestos, powdered filter aids such as diatomaceous earth and lime,
It is preferable to form (pre-coat) a filter aid layer on the outer surface of the ceramic filter 36 using various filter aids such as the following, and perform filtration using this aid layer.

[0040] Furthermore, in the purification device 14 of the present invention,
Furthermore, in order to improve the pool water purification effect, a layer made of silica gel that selectively adsorbs proteins (hereinafter referred to as a silica layer) may be formed in addition to such a filter aid layer.

Various known silica gels can be used as the silica gel that selectively adsorbs proteins, and silica hydrogel is particularly preferred. Silica hydrogel is a polymer composed of SiO2 molecules of several millimeters in size, which has a uniform pore diameter, large pore volume, and surface area, and the inside and surface of the pores are made of silanol. It has a network structure of groups.

[0042] Silica hydrogels, especially those with a pore size of 80 to 1
By applying 00 Å silica hydrogel together with activated carbon as an adsorption purification means, proteins etc. released from the human body can be suitably removed from pool water.

[0043] A preferable example of such a silica hydrogel is Brightsolve A-100 (manufactured by Asahi Glass Co., Ltd.).

The purification system 10 shown in FIG. 1 has, as a preferred embodiment, a supply device 18 for such a filter aid, silica gel, or the like.

The supply device 18 supplies powdered filter aids and fibrous filter aids as filter aids, as well as silica gel forming a silica layer, into the purification device 14, specifically to the outer wall of the ceramic filter 36. In the illustrated example, a slurry pump 67 capable of transporting a so-called slurry-like material, a tank 68 filled with a mixture of powdered filter aid and water, and a tank filled with a mixture of fibrous filter aid and water are used. and a supply line 72 connecting the supply device 18 to the inlet line 26.

When forming each filter aid layer, the line corresponding to the filter aid layer to be formed is opened, and the required amount of filter aid mixture is supplied into the purification device 14 by the slurry pump 67. However, after stopping the slurry pump 67 and closing the valve, circulation may be performed in the same manner as when the pump 22 is driven to filter water.

In the purifying device 14 of the present invention, there is no particular limitation on the order in which the filter aid layer and the silica layer are formed on the ceramic filter 36, and the silica layer is formed on the fibrous filter aid layer, and the upper layer is formed on the fibrous filter aid layer. Alternatively, the fibrous filter aid layer and the powdered filter aid layer may be reversed, or other structures may be used. Further, each layer is not limited to being formed one layer at a time, and at least one of the layers may be formed as a multilayer, or all the layers may be formed as a multilayer.

In addition, in the illustrated example of the digestion system, powdered and fibrous filter aids (and silica gel) are used.
However, the present invention is not limited to this, and uses only one tank (one tank is provided) to supply a predetermined amount of one type of filter aid. Pour the slurry into the tank, mix it with water, and pump the entire amount into the slurry pump 40.
After transporting it to the purification device 14 to form one layer of filter aid, repeat operations such as putting another filter aid (silica gel) into the tank and forming an upper filter aid layer in the same way. You may go.

[0049] A filtration method using such a filter aid layer is described in detail in Japanese Patent Laid-Open No. 143917/1983.

Furthermore, the ceramic filter 36 applied to the purification device 14 has very fine pores three-dimensionally, and if it is applied to purified water as it is, it will quickly become clogged, and in severe cases, This makes expensive ceramic filters unusable. Therefore, in the illustrated purification system 10, by forming a filter aid layer on the outer cylinder part of the ceramic filter 36 as described above, clogging of the ceramic filter 36 is prevented, and the ceramic filter 36 is backwashed. It has a backwash device 16 for cleaning.

The backwash device 16 has a water storage tank 74, a pump 76, and a jet water flow generator 78, and the backwash line 80 is connected to the discharge pipe 40 of the second housing 38.
It is connected to the purification device 14 by being connected to.

Backwashing of the ceramic filter 36 is carried out by transporting the water in the water storage tank 74 at high speed by the pump 76, turning this water into a jet water flow by the jet water flow generator 78, and then
This is performed by flowing a jet of water into the second housing 38 through the backwash line 80 and the discharge pipe 40 and injecting it from the inner wall of the ceramic filter 36 . This removes the filter aid, dust, etc. from the outer wall of the ceramic filter 36.

Such backwash cleaning is disclosed in detail in Japanese Patent Application No. 2-35029 filed by the present applicant.

FIG. 4 conceptually shows a pool water purification system 100 to which a purification apparatus according to the third aspect of the present invention is applied.

Pool water purification system 10 shown in FIG.
0 applies the purification device 102 instead of the purification device 14,
Also, except for having a backwashing device for the ultrafiltration means provided in the purification device 102, it is basically the same as the above-mentioned pool water purification system, so the same members are given the same numbers and a detailed description thereof will be given. is omitted.

[0056] Furthermore, the purification device according to the second aspect of the present invention includes:
Since this pool water purification system 100 shown in FIG. 4 does not have a backwash device for ultrafiltration means, the explanation will be given together with the purification device 102 of the third embodiment.

The purification device 102 applied to the third (second) aspect of the present invention is the purification device 14 described above with further addition of ultrafiltration means.

FIG. 5 shows a schematic cross-sectional view of the purification device 102.

The purifying device 102 has a structure in which cylindrical housings are combined together like the previously described purifying device 14, and between the fourth housing 50 and the fifth housing 56, there are a seventh housing 106 and a seventh housing 56. 8 housing 108, 9th housing 110, and 10th housing 112.
A housing is further arranged to form an ultrafiltration means for the pool water and a backwashing device for the ultrafiltration means.

That is, in the purification device 14 described above, the pool water that has passed through the ceramic filter 36 then passes through the introduction pipe 66 and is sterilized by the lamp unit 64, but in the purification device 102, the pool water passes through the ceramic filter 36.
The pool water that has passed through the pool water is subjected to ultrafiltration by an ultrafilter 114, and then sterilized by a lamp unit 64.

[0061] A more specific explanation will be provided. First, the seventh housing 106 is arranged inside the fourth housing 50. The seventh housing 106 serves as an introduction path for pool water to the ultrafilter 114, and has a cylindrical shape in which the inside of the wall forming the cylinder serves as a flow path for the pool water, and the upper part of the inner wall serves as a channel for introducing pool water into the ultrafilter 114. 8 Pool water inlet 116 to housing 108
It becomes.

[0062] An eighth housing 108 is disposed inside the seventh housing 106. In the illustrated purifier 102, not all of the pool water introduced from the seventh housing 106 is subjected to ultrafiltration, and some of it passes through the ultrafilter 114 without being ultrafiltered. 8 housing 108 (hereinafter referred to as overflow). The eighth housing 108 serves as a supply path for pool water to the ultrafilter 114 and a drainage path for pool water overflowing from the ultrafilter 114. Also, the 8th
An inlet 119 for introducing pool water into the ultrafilter 114 and a closing portion 107 for introducing the pool water into the ultrafilter 114 are formed within the housing 108 .

[0063] The discharge pipe 114 of the eighth housing 108 is connected to the inflow line 26. The connecting portion between the discharge pipe 114 and the inflow line 26 has a configuration in which the introduction pipe 29 from the discharge pipe 114 is inserted into the jet venturi 27 as shown in FIG. The pool water is drawn into the purification device 102 again together with the pool water by the flow of pool water flowing into the purification device 102 from the pool 12 via the inflow line 26.

In addition, the illustrated pool water purification system 1
00, the supply line 72 of the filter aid supply device 18 is branched and connected to the flow path of the overflowing pool water from the discharge pipe 114 to the inflow line 26, and this pool water is supplied to the ceramic filter 36. It is also configured to supply an appropriate amount of a filter aid such as diatomaceous earth. With this configuration, viruses and the like that pass through the ceramic filter 36 but can be separated from the pool water by the ultrafilter 114 described later can be separated by the ceramic filter 36 along with diatomaceous earth. In addition to diatomaceous earth, various types of auxiliary agents can be used, such as cellulose, activated carbon, and silica gel, which form a fine-grained powder emulsion.

A ninth housing 110 is arranged inside the eighth housing 108. The ninth housing 110 is
It holds the ultrafilter 114 and forms a water channel for pool water that has undergone ultrafiltration.

[0066] Ultrafiltration refers to this ceramic filter 3.
It is possible to separate viruses such as AIDS virus, influenza virus, Japanese encephalitis virus, and hepatitis virus, which are even smaller than fungi, and which cannot be separated even with the purifier 102. By having the outer filter 114, the pool water can be purified to a higher degree and the pool 12 can be kept cleaner.

The ultrafiltration means applied to the purification device 102 of the present invention is not particularly limited as long as it has the above-mentioned characteristics (ability to separate viruses, etc.), and various known ultrafiltration means can be used. Although any of these methods can be applied, an ultrafiltration means that uses a cylindrical hollow fiber membrane capable of separating viruses etc. is particularly suitable. It has an annular shape with many arranged in the vertical direction.

That is, the ultrafilter 114 of the illustrated example basically has a vertically oriented hollow fiber membrane 114a disposed in the same cylindrical shape as the ninth housing 110, and the ninth housing 110 is attached to the upper and lower end surfaces of the hollow fiber membrane 114a. Upper surface 114b having the same cross-sectional shape as
and a lower surface 114c,
Holes are formed in the upper and lower surfaces of the hollow fiber membrane 114a in the portions corresponding to the end openings. In such an ultrafilter 114, pool water that flows into the ultrafilter 114 from the inlet 119 passes through the wall surface of the hollow fiber membrane 114a, flows into the hollow fiber membrane 114a, and flows downstream to the lower surface. It is discharged from the inside of the ninth housing 110 and flows downstream. Here, since viruses and the like cannot pass through the wall surface of the hollow fiber membrane 114a, they are separated from the pool water.

The pool water from which viruses and the like have been removed through the ultrafilter 114 flows into the sixth housing 62 from the discharge pipe 116 of the ninth housing 110 .

The hollow fiber membrane 114a applied to the ultrafilter 114 of the present invention is not particularly limited, and various known hollow fiber membranes for ultrafiltration can be applied. ) etc. are preferably exemplified.

In the illustrated purification device 102, the ultrafilter 114 is equipped with an ultrasonic generator 118 for facilitating backwashing of the ultrafilter 114. The ultrasonic generator 118 is supported on the upper surface of the first housing 32 and is disposed to pass through the upper surface 114b and the lower surface 114c of the ultrafilter 114.

If the ultrafilter 114 is continued to be used, the hollow fiber membrane 114a will become clogged with separated viruses and the like, and the processing capacity of the ultrafilter 114 will decrease. Therefore,
In order to maintain a predetermined throughput, the ultrafilter 114
(Hollow fiber membrane 114a) needs to be cleaned regularly,
The purification device 102 shown in FIG. 4 has backwash cleaning means. The ultrasonic generator 118 vibrates the hollow fiber membrane 114a with ultrasonic waves during this backwashing, thereby improving the cleaning efficiency of the backwashing. Backwashing of the ultrafilter 114 will be detailed later.

There are no particular limitations on the ultrasonic generator that can be applied to the present invention, and any known ultrasonic generator such as an ultrasonic diaphragm can be applied. Further, in the illustrated example, two ultrasonic generators 118 are disposed in the ultrafilter 114, but the present invention is not limited to this, and the ultrafilter 114 is provided with two ultrasonic generators 118.
The required number may be arranged according to the size and capacity of the ultrasonic wave generator 118, the capacity of the ultrasonic generator 118, etc.

A tenth housing 112 is arranged inside the ninth housing 110. 10th housing 112
forms an introduction path for washing water during backwashing of the ultrafilter 114, and is connected to the ninth housing 110 at the upper part.

Next, the water purification effect of the purification device 102 will be explained. Note that, as described above, the purification device 102
is the purification device 14 with an ultrafiltration means added, and the functions other than this point are the same as the previous purification device 14, so
A detailed explanation will be given on this point and the rest will be omitted.

The pool water that has passed through the ceramic filter 36 in the same way as the purifier 14 passes through the discharge pipe 40 of the second housing 38 and then flows from the inlet pipe 120 to the seventh housing 10.
6. Pool water flowing in through the introduction pipe 120 rises within the seventh housing 106 and flows into the eighth housing 108 through the introduction port 116.

As described above, the eighth housing 108 is formed with the closing part 107, which allows the pool water to flow into the ultrafilter 114. However, in the illustrated example purifier 102, the eighth housing 108 is Not all of the incoming pool water is subjected to ultrafiltration, but some of it is sent to ultrafilter 1.
14 for ultrafiltration, and the remainder overflows back into the eighth housing 108 and flows downstream.

The pool water flowing into the ultrafilter 114 is
It passes through the side wall of the hollow fiber membrane 114a to remove viruses, etc., flows downstream inside the hollow fiber membrane 114a and flows out of the ultrafilter 114, and flows downstream inside the ninth housing 110 to the discharge pipe 1.
16 and flows into the sixth housing 62 through the introduction pipe 66. The subsequent pool water purification action is similar to that of the purification device 12 described above.

On the other hand, pool water that has not been subjected to ultrafiltration and has overflowed is discharged from the discharge pipe 114 downstream in the eighth housing 108, and is discharged from the pool 12 to the purification device 10.
2 is sucked into the inflow line 26 and flows into the purification device 102 again.

As mentioned above, in the illustrated example purifier 102, the filter aid supply line 72 is branched and connected in the middle of the path from the discharge pipe 114 to the inflow line 26, and an appropriate amount of diatomaceous earth is supplied to the filter aid supply line 72. etc. are supplied. Therefore, viruses and the like contained in the overflowing pool water are adsorbed to diatomaceous earth and the like, so that the viruses and the like can be separated by the ceramic filter 36.

As mentioned above, the purification device 102 has a backwashing device for the ultrafilter 114 (hollow fiber membrane).

This backwashing device basically includes a washwater tank 122 filled with washwater, a pump 124, a backwash line 126 (see FIG. 4), and the tenth housing 1 described above.
12, the ninth housing 110, and the eighth housing 10
8 and an ultrasonic generator 118, which performs backwashing while vibrating the hollow fiber membrane 114a of the ultrafilter 114 using ultrasonic waves.

In the illustrated purification device 102, when backwashing the ultrafilter 114, the wash water filled in the wash water tank 122 is pumped into the backwash line 1 by the pump 124.
Supplied from 26. The backwash line 126 is connected to the discharge pipe 116 of the ninth housing 110 and the introduction pipe 128 of the tenth housing 112, and the wash water is supplied to the upper surface 114b.
and enters the hollow fiber membrane 114a from the lower surface 114c,
By passing through the side wall of the hollow fiber membrane 114a from the inside, impurities such as viruses adsorbed on the outer wall of the hollow fiber membrane 114a are removed.

[0084] The cleaning liquid containing impurities such as viruses that has passed through the side wall of the hollow fiber membrane 114a flows into the eighth housing 108 through the inlet 119 and is discharged through a discharge path (not shown).

Although the pool water purification device according to the present invention has been described in detail above, the present invention is not limited thereto, and various improvements and changes can be made without departing from the gist of the present invention. Of course, it is also good.

[0086]

As described above in detail, the pool water purification device of the present invention can be made extremely compact despite having an adsorption purification means and/or a sterilization means. Furthermore, since these units can be integrated into a unitary configuration, the unit can be installed on site after being manufactured, and installation work can be facilitated.

[Brief explanation of the drawing]

FIG. 1 is a diagram conceptually showing a pool water purification system to which a pool water purification device according to a first aspect of the present invention is applied.

FIG. 2 is a schematic perspective view of an example of the pool water purification device of the first aspect of the present invention applied to the pool water purification system shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the pool water purification device shown in FIG. 2;

FIG. 4 is a diagram conceptually showing a pool water purification system to which a pool water purification device according to a third aspect of the present invention is applied.

5 is a schematic sectional view of a pool water purification device according to a third aspect of the present invention applied to the pool water purification system shown in FIG. 4. FIG.

6 is a diagram conceptually showing a re-inflow portion of overflow water of ultrafiltration applied to the pool water purification system shown in FIG. 4. FIG.

[Explanation of symbols]

10,100 Pool water purification system 12 Pool 14, 102 Pool water purification device 16 Backwash device 18 Supply device 20 Overflow tank 22 Pump 24 Pre-filter 26 Inflow line 27 Jet venturi 28 Return line 29 Inlet pipe 30 First housing 32 Flange 34 , 52, 66, 120, 128 Introductory pipe 36
Ceramic filter 38 Second housing 40, 46, 60, 114, 116 Discharge pipe 42
Third housing 48 Activated carbon 50 Fourth housing 56 Fifth housing 62 Sixth housing 63 Air inlet 64 Lamp unit 65 Air bleed filter 74, 122 Cleaning liquid tank 76, 124 Pump 106 Seventh housing 107 Closure part 108 Eighth housing 110 9 housing 112 10th housing 114 Ultrafilter 114a Hollow fiber membrane 114b Upper surface 114c Lower surface 118 Ultrasonic generator 122 Cleaning liquid tank

Claims (6)

[Claims] 1. A pool water purification device characterized in that at least one of an adsorption purification means and a sterilization means are disposed inside a cylindrical filter and are integrated. 2. A pool water purification device characterized in that at least one of adsorption purification means and sterilization means and ultrafiltration means are disposed inside a cylindrical filter and are integrated. 3. At least one of an adsorption purification means and a sterilization means and an ultrafiltration means are disposed and integrated inside the cylindrical filter, and further a backwashing means for at least the ultrafiltration means is disposed and integrated. Pool water purification device. 4. The pool water purification apparatus according to claim 3, wherein the backwash cleaning means of the ultrafiltration means applies ultrasonic vibration. 5. The pool water purification device according to claim 1, wherein the cylindrical filter is a porous ceramic filter. 6. The pool water purification device according to claim 1, wherein the adsorption purification means applies at least activated carbon, and the sterilization means applies ozone and ultraviolet rays.