JP3485352B2 - Bathtub cleaning filter device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath water purifying filter device capable of removing fine dust and dirt as impurities in a bath water purifying device, and more particularly, preventing clouding.

[0002]

2. Description of the Related Art Conventional filters include a pre-filter for removing coarse dust such as hair and dust, a main filter (ordinary filter) for removing relatively large dust having an impurity particle size of about 10 ^-6 m or more, and a fine dust. It was composed of a filter material filter (adsorption filter material filter) of activated stone and activated carbon that removes. Therefore, about 10 ^-9 m or more in the middle, about 10 ^-6
It was not possible to remove colloidal dirt having an impurity particle size of m or less. As a result, a phenomenon called clouding of the bath water occurred.

The white turbidity will be described in detail.
It is considered that white turbidity occurs when fine colloidal particles having a size of about 10 ⁻⁹ m to about 10 m ⁻⁶ are dispersed in a stable state. The colloidal particles of this size are between the particles that can be filtered by the main filter and the particles that can be adsorbed and removed by activated carbon, etc., and the device at the time of installation does not have bacteria (bacteria) attached and must prevent its clouding. Was difficult.

Substances that cause the bath water to become cloudy are secretions from the body (amino acids contained in body fluids, proteins, etc.,
In addition, keratinized skin, body fluids containing special ingredients due to side effects of drunk medicines, etc., soaps, cosmetics, ointments (soap ingredients brought in through the body or towel, cosmetics, about 2,000 kinds or more contained in ointments) Inorganic and organic substances), dirt from bath kettle, solar system (dirt flowing out of bath kettle, solar system and piping, etc.), bath agent (in the commercially available bath agent, called turbid water), ,
It contains a large amount of heat-retaining ingredients, etc.), and the contamination of raw water (water supply, tap water used for hot water supply, cloudiness of raw water such as well water, etc.).

In the case of cloudiness of tap water, there are two cases, one is cloudy only immediately after coming out of a tap water tap and the other is cloudy actually. In the former case, the air that had dissolved in the water due to water pressure was suddenly released into the body pressure, so it appears as fine bubbles that appear cloudy at first sight, and there is no problem.

[0006]

On the other hand, in order to prevent white turbidity, a means of providing a filter of the same type has been taken, but the filter is clogged early, frequent filter replacement is required, and the flow rate is increased. There was a serious inconvenience such as the burden on the circulation pump due to the drop. Further, there is also a demand for improvement in the drawback that the main filter (normal filter), the filter medium filter (adsorption filter medium filter), and the filter for preventing white turbidity make the entire filter large and complicated.

[0007]

Therefore, as a result of intensive studies, the inventor of the present invention has found that the present invention can be applied to a circulating pipe between a hot water bath and a purifying mechanism such as a filter. In a cleaning filter device of a bath water cleaning device for bath water to be circulated by means of a housing, which is connected to a circulation pipe and houses a filter body for filtering fine dust and impurities from the bath water, and a suction side of the housing. And a discharge side, and a part of or all of the bath water is dissolved in the bypass part due to flooding for a predetermined time which is the time for which the filter of the filter body is clogged, and the bypass state is closed after a predetermined time has passed. The above-mentioned problems are solved by using a bath water cleaning filter device provided with a water-soluble control means for opening from above. Further, in the above-described configuration, the water-soluble control means is a cleaning filter device for bath water which is a water-soluble film, and thus the above-mentioned problem is solved.

[0008]

In the initial stage, the entire bath water is filtered through the filter body to prevent clouding. However, the water-soluble control means provided in the bath water bypass provided outside the housing immediately before the clogging occurs. Dissolves after a lapse of a predetermined time, a part of the bath water bypass section opens, a part of the bath water passes through the bath water bypass section, and most of it is filtered without filtering. Therefore, in particular, most of fine impurities and impurities that become dirt can be filtered.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described in detail with reference to the drawings. A is a filter main body, and the structure of the filter main body A is that the whole bath when stored in a housing B described later. Water is filtered, and the specific shape of the filter body A is as follows.
It is composed of the shielding lower lid 3 and the filter material A ₁ .

The filter material A ₁ is made of a woven fabric or a non-woven fabric so as to be able to filter the impurity particle size of about 10 ⁻¹² m or more. That is, not only fine colloidal particles having a size of about 10 ^-9 m to about 10 ^-6 m which can prevent clouding, but also the finest colloid particles having a size of about 10 ^-9 m or less which can be filtered with activated stone or activated carbon. It is designed to block the passage of various colloidal particles.

The filter material A ₁ has about 10
^-Precision filter 5 that functions as a precise filter that filters fine impurity particle sizes that are ^-10 m or more and approximately 10 ^-6 m or less, and normal filter that filters impurity particle sizes that are approximately 10 ^-6 m or more Ordinary filter 6 is present. The precision filter 5 and the ordinary filter 6 have the same shape. Further, at the center position of the filter material A ₁ , a cylindrical core material A ₀ having a large number of through holes formed around it may be provided or may not be provided.

As the filter material A _{1, there} are a filter material charged with a positive zeta potential and a filter material not charged with a positive zeta potential. The zeta potential is the electrical potential that exists across the solid-liquid interface. In general, fine colloidal particles that become dirty are often negatively charged with a zeta potential. Therefore, when the filter material A ₁ charged with a positive zeta potential is put into the dirt, the fine colloidal particles charged with the negative zeta potential are adsorbed on the filter material A ₁ . It has been confirmed that such a method is surely effective against cloudiness.

Further, the filter material A ₁ is formed as the filter face material 1 or is wound into a wound shape [FIG. 8].
(See (a)] and the like are present. When it is formed as the filter face material 1, it may be formed into a strip plate shape, and a plurality of it may be bent and formed in a pleat shape (see FIGS. 1, 3 and 4 etc.), or a roll shape. 8 (b)], and further formed into a plurality of layers [see FIG. 8 (c)]. In the present invention, a pleat-shaped product is particularly used. Specifically, the elongated flat filter face material 1 is bent inward and outward so as to be pleated as a whole. This filter material A ₁ has a star shape when viewed two-dimensionally.
The overall shape of the above may be simply a columnar shape or a truncated cone shape.

The porous substance 4 is mixed in all or part of the circumference of the filter material A ₁ . Examples of the type of the porous material 4 include diatomaceous earth, perlite (pearlite), zeolite, activated carbon and the like. The diatomaceous earth as the porous substance 4 is a siliceous Thai product composed of diatoms of diatom, which is a unicellular sow, and is usually mixed with clay, volcanic ash, organic matter and the like. Moreover, the size is not uniform, but it is usually about 25 × 10 ⁻⁶ m, and there are many holes seen under a microscope, which cause the characteristic physical and scientific properties of diatomaceous earth. Its essence is hydrous amorphous silicon dioxide similar to protein stone. In particular, it is used as an adsorbent and a filtration material. The purified product is used as a carrier for a gas phase catalytic reduction catalyst. Generally, marine products are large in quantity but poor in quality, and lakes are small in quantity but good in quality.

Further, perlite (pearlite) as the porous material 4 is a glassy rhyolite which is formed into a large number of spherical or spiral crevices and is usually broken into small pearl-like lumps of 1 cm or less or rubble. is there. Zeolite as the porous material 4 is a hydrated silicate of adjusted porous aluminum or calcium (or sodium). Further, the activated carbon as the porous substance 4 is characterized by having a very large surface area per unit volume because it has powdery, granular or pelletized amorphous carbon and innumerable fine pores.

As a concrete example, the pleated filter face material 1 (see FIG. 4A) is as shown in FIG.
As shown in (b), it is composed of three layers of a front surface layer 1a, an inner layer 1b, and a back surface layer 1c, and particles of diatomaceous earth serving as a porous substance 4 are mixed only in the inner layer 1b. An extremely thin front surface layer 1a and a back surface layer 1c, and a thick internal layer 1
The inner layer 1b is configured so as to enclose b, and the inner surface 1b is configured such that the front surface side is rough and the back surface side is dense. The front surface layer 1a and the rear surface layer 1c are coarsely configured so that bacteria and the like can easily pass therethrough, so that the filter surface material 1 is folded [see FIG. 4 (c)] so that the front surface layers 1a themselves and the rear surface layer 1c can be folded. Even if they are in close contact with each other, they are narrow but are sufficient as a flow path for bath water, and the inner layer 1b containing the porous substance 4 is mixed.
By enclosing it, it is possible to prevent detachment of the porous substance 4 that is extremely easily peeled off, and to protect the internal layer 1b from being damaged during cleaning.

By mixing the porous substance 4 into the filter face material 1 in this manner, bacteria (bacteria) easily adhere to or propagate in the numerous infinitesimal pores formed in the porous substance 4 and contaminated microorganisms. Decomposes to make a cleaning action. In particular, many bacteria are likely to adhere to the porous substance 4 at an early stage. The bacterium is a microorganism consisting of prokaryotic cells, often about 0.5 to 2
It has a size of 10 ^-6 m or less and is a single cell or a simple cell aggregate formed as a result of proliferation. Proliferation is generally due to even division, but some may show germination and uneven division. Some bacteria produce thermostable endospores.

Further, when a slurry made of the porous material 4 is mixed into the inside of the filter layer made of a porous material such as the filter body A, clogging of the filter body A is prevented,
The filtration efficiency can be remarkably increased. In addition, the filter body A may be made of only the material, and the porous substance 4 may not be mixed or attached thereto (see FIG. 4D).

The shielding upper lid 2 and the shielding lower lid 3 are provided,
The shielding lower lid 3 is provided with an outflow hole 3a. From the side of the filter material A ₁ (peripheral surface), the bath water, in order to be satisfactorily filtered outflow hole 3a is provided in association with the hole shape of the outflow portion h of the filter material A _1.

Further, the outer diameter of the shielding lower lid 3 is larger than the outer diameter of the shielding upper lid 2. The outer diameter of the shielding lower lid 3 is formed to be substantially equal to the inner diameter of the housing B described later. Side surface (circumferential surface) of the filter material A ₁
Therefore, the outer diameter of the shielding upper lid 2 and the outer diameter of the shielding lower lid 3 are not limited as long as the bath water is sufficiently introduced.

The filter material A ₁ is formed as a single material or is compounded. Explaining the specific contents of the compounding, as shown in FIG. 5, it is made of a material that is appropriately divided in the circumferential direction and subjected to different treatments at appropriate angles, or as shown in FIG. It is divided into a plurality of columns and arranged, or as shown in FIG. 7, they are arranged in parallel in the radial direction in an annual ring shape. The material is made of anionized Aa or cationized Ac, or lipophilic As.

As described above, generally, the stain component of fine colloidal particles is negatively charged, but depending on the stain, it may be positively charged, or Contamination by the oil component of the human body is not positively or negatively charged. For this reason, the anionized Aa refers to a filter treatment for adsorbing negatively charged colloidal particles, and the anionized Ac for adsorbing positively charged colloidal particles. The term “filter treatment” refers to a filter that uses lipophilic As to filter oil components that are not positively or negatively charged. As described above, since the pollutant components of the bath water are varied, the anionization treatment Aa and the cationization treatment A are performed.
c, the lipophilic As filter material A ₁ is preferable from the viewpoint of removing dirt.

Reference numeral B denotes a housing, which is in the shape of a tubular container and is formed by being divided into two parts, a lower bowl-shaped housing 7 and a bell-shaped upper housing 8 (FIG. 1).
Etc.). At the lower end of the lower housing 7, a short tubular discharge passage 7a is provided, and at the upper end of the upper housing 8, a short tubular suction passage 8a is provided. The bowl-shaped lower housing 7 and the bell-shaped upper housing 8 are coupled to each other, and the filter body A is provided so as to be housed therein.

When the filter body A is housed in the housing B, all the bath water is filtered as described above. Specifically, the upper surface of the filter body A and
Voids 9 are formed between the inner wall of the housing B and the outer diameter of the filter body A and the inner diameter of the housing B.

Outside the filter body A, there is provided a bath water bypass section 10 through which the bath water passes without being filtered. Specifically, the suction passage 8a of the upper housing 8
And a discharge path 7a of the lower housing 7 are provided as a pipe.

The bath water bypass portion 10 is provided with a water-soluble control means 11 which is opened after being immersed in water for a predetermined time. A water-soluble film is used as the water-soluble control means 11. There are five types of water-soluble films: polyvinyl alcohol type, starch type, cellulose derivative type and polyethylene oxide type films. The melting temperature of each film is 0 to 100 ° C. for polyvinyl alcohol type, 52 to 100 ° C. for starch type,
The temperature is 0 to 52 ° C. for the methyl cellulose type and 0 to 100 ° C. for the polyethylene oxide type. As described above, the starch-based film is insoluble in low temperature water, and the cellulose derivative film is less soluble in high temperature water. Among the water-soluble films, the polyvinyl alcohol-based water-soluble film is the most common and occupies most of the quantity.

Besides the water-soluble film, the material is not limited as long as it is water-soluble. By providing the water-soluble control means 11 composed of such a water-soluble film or the like so as to close the bath water bypass portion 10, when it is placed in the bath water, a desired time elapses depending on the material and thickness of the film. Later (preferably, for about 3 months to about 6 months), part or all of the water-soluble control means 11 is dissolved, the bath water bypass section 10 is opened, and the bath water is circulated.

The adsorbent filter medium filter 12 is used as needed when a large amount of bath water is used. The adsorbent filter medium filter 12 is composed of activated carbon 12a and activated stone 12b. As shown in FIG. 2, the activated stone 12b is placed in the uppermost position of the housing B, and the activated carbon 12a is placed in the middle position of the activated carbon 12a. Is provided with a filter body A. With such a configuration, it is possible to filter all of the fine dirt components and above.

Further, as shown in FIG. 10, generally, only the filter body A is housed in the housing B, which is composed of the circulating pump 14 and the heater 15 for keeping the bath water warm. The filter-related member, the circulation pump 14, and the heater 15 are connected to each other by a circulation pipe 16, and both ends thereof are located inside the bath 17. In the figure, 18 is a prefilter for removing large dust such as hair, 19 is an ozone generator, 20 is a solenoid valve for supplying air, 21 is a check valve for water, 22 is an air check valve, 2
Reference numeral 3 is a nozzle portion at the tip of the circulation pipe 16.

When only the filter main body A is provided in the housing B, the bath water flowing in from the suction passage 8a is closed because the bath water bypass section 10 is closed due to the presence of the water-soluble control means 11. It passes through the filter face material 1 of the main body A and is filtered during this passage. Then, after a lapse of a predetermined time, a part or all of the water-soluble control means 11 is dissolved and the bath water bypass section 10 is opened. Then, a part of the bath water passes through the bath water bypass section 10 without being filtered according to the diameter of the inflow hole 7a, and the filtered bath water and the unfiltered bath water are mixed with each other in the lower housing 7.
Is discharged from the discharge path 7a at the lower end of the.

When the housing B is provided with the filter body A and the adsorbent filter material filter 12, the suction passage 8a is provided.
The bath water that has flowed in from passes through the adsorbent filter medium filter 12, all the bath water is filtered by this passage, and the bath water bypass section 10 is closed due to the presence of the water-soluble control means 11. It passes through the filter face material 1 of the filter body A and is filtered during this passage. Then, after a lapse of a predetermined time, a part or all of the water-soluble control means 11 is dissolved and the bath water bypass section 10 is opened. Then, a part of the bath water passes through the bath water bypass portion 10 without being filtered according to the diameter of the inflow hole 8a, and the bath water filtered by the filter body A and the bath water not filtered by the filter body A. Are discharged from the discharge passage 8a at the lower end of the lower housing 8.

Further, since the filter body A and the adsorbent filter medium filter 12 described above are in a clogged state after a certain period (about half a year to about a year), it is necessary to wash them for maintenance. In this case, remove the clogged dirt component,
In order to facilitate washing as a post-treatment, it is preferable that the flow rate of the bath water in the bath water purifying apparatus is relatively low.

In the first aspect of the invention, firstly, fine dust and impurities that become dirt can be filtered to some extent, secondly, cloudiness can be reliably prevented, and thirdly, the filter body is less likely to be clogged. Fourth, there is an effect that it is possible to save the trouble of replacing the filter, and fourthly, to prevent the pump from being burdened because the flow rate is secured even if the filter is clogged.

These effects will be described in detail. According to the structure of claim 1, by using this in a bath water cleaning device,
In the initial stage, the water-soluble control means 11 filters the entire bath water to eliminate stains and cloudiness.
Then, after a lapse of a predetermined time, the water-soluble control means 11 is dissolved, the bath water bypass section 10 is opened, a part of the bath water passes through the bath water bypass section 10, and a part thereof is not filtered. However, since most of them are filtered, it is also possible to particularly filter most of fine dust and impurities that become dirty.

Particularly in the present invention, the bath water bypass section 10 is
Since the water-soluble control means 11 is provided which opens after a lapse of a predetermined time after being immersed in water, the whole bath water is filtered through the filter body A before the lapse of the predetermined time. That is, during a time period in which no clogging occurs, the entire bath water is filtered by the filter body A, and fine impurities having fine particle diameters may be used as the white turbidity generation source, which can surely prevent white turbidity. There are advantages.

Further, since a part of the bath water passes through the bath water bypass portion 10 provided in the housing A without being filtered by the filter main body A after a predetermined time has passed, it is already present. Since the degree is clogged, a finer particle size can be obtained. Anything other than this will flow out directly, so that clogging can be prevented and the trouble of replacing the filter body A can be surely saved. Further, even if the filter body A is clogged, there is an advantage that a part of the bath water passes through the bath water bypass section 10 and the pump is not excessively burdened.

As described above, in particular, it is possible to prevent the initial white turbidity, prevent clogging, save the trouble of exchanging the filter body A, and prevent an excessive load on the pump. Has a positive effect.

According to a second aspect of the present invention, in the first aspect, the water-soluble control means is a cleaning device for cleaning bath water which is a water-soluble film. By providing the sex control means 11 so as to close the bath water bypass portion 10,
When this is placed in bath water, a part or all of the water-soluble control means 11 is dissolved after a desired time has elapsed depending on the material and thickness of the film, and the bath water bypass section 10 is opened, and the bath water is opened. Therefore, there is an advantage that the filter main body A is less likely to be clogged, the trouble of filter replacement is saved, and the flow rate is secured even if the filter is clogged, so that the pump is not burdened.

[0039]

[0040]

[0041]

[0042]

[0043]

[0044]

[0045]

[Brief description of drawings]

FIG. 1 is a vertical sectional view of the present invention.

FIG. 2A is a sectional view showing a state in which the water-soluble control means is closed, and FIG. 2B is a sectional view showing a state in which the water-soluble control means is partially opened.

FIG. 3 is an exploded perspective view of a filter body.

4A is an enlarged cross-sectional view of a filter face material, FIG. 4B is an enlarged cross-sectional view of an essential part of FIG. 4A, and FIG. 4C is an enlarged cross-sectional view of a filter face material with the filter face material folded. The sectional view (d) is an enlarged sectional view of the filter face material of another embodiment.

FIG. 5 is a perspective view of a filter body manufactured by separating the respective materials into a plurality of pieces in the circumferential direction, in which the present invention is anionized, cationized, and lipophilic.

FIG. 6 is a perspective view of a filter main body manufactured by separating the respective materials into three layers for anionization treatment, cationization treatment, and lipophilicity of the present invention.

FIG. 7 is a perspective view of a filter body manufactured by anionizing treatment, cationizing treatment, and lipophilicity according to the present invention, in which respective materials are radially separated into rings.

FIG. 8A is a perspective view of a filter body formed into a spool shape, FIG. 8B is a perspective view of another embodiment of a filter body formed into a roll shape, and FIG. 8C is another view of a filter body formed into a plurality of layers. Example perspective view

FIG. 9 is a vertical cross-sectional view in which an adsorbent filter medium filter is provided in the present invention.

FIG. 10 is a simplified circuit diagram in which the present invention is provided in a bath water purification device.

[Explanation of symbols]

A ... Filter body A ₁ ... Filter material B ... Housing 1 ... Filter face material 1a ... Surface layer 1b ... Inner layer 1c ... Back layer 4 ... Porous substance 5 ... Precision filter 6 ... Ordinary filter 10 ... Bath water bypass 11 ... Water soluble Sex control means Aa ... anionization treatment Ac ... cationization treatment As ... lipophilicity

Continuation of the front page (56) Reference JP-A-63-84613 (JP, A) Actually developed S63-6014 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B01D 35 / 027 B01D 35/147

Claims (2)

(57) [Claims] 1. A cleaning filter device of a bath water purifying device for bath hot water, which circulates between the bath hot water and a cleaning mechanism such as a filter by a circulating pipe, which is connected to the circulating pipe to provide fine dust and dirt. A housing for accommodating a filter body for filtering the impurities from the bath water, a bath water bypass section for connecting the suction side and the discharge side of the housing, and a clogging time of the filter of the filter body for the bypass section. A bath water cleaning filter device comprising a water-soluble control means for dissolving a part or all of the water after a predetermined time elapses and changing it from a closed state to an open state after a predetermined time elapses. 2. The cleaning device for bath water according to claim 1, wherein the water-soluble control means is a water-soluble film.