JPH06114240A - Filter - Google Patents

Abstract

PURPOSE:To provide a filter where fluid, such as water of high treated water quality and air is obtained in relatively large quantities according to its use and the installation area is easily increased or decreased. CONSTITUTION:A filter F1 is constituted of plural cartridges 10 where a cylindrical body is packed with hollow yarn, an upper connector 20 and a lower connector 30 by which both ends of the plural cartridges are connected in a communicative state respectively, an inlet A for fluid to be treated installed in any one of the upper connector and lower connector and an outlet B for filtrate installed in tie other of the upper connector and lower connector. Thus various cartridges 10 different in inside diameter, length, kinds of packed filter mediums. etc., according to their use are previously prepared and the installed number of them is adjusted when assembling the filter, causing filtrated water of high water quality according to its use to be obtained in large quantities. And also the filtration area is easily increased or decreased even if the installation area is small.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in filters for fluids such as water and air, and more particularly, to improvements in so-called cartridge filters in which a filter medium is filled inside a cylindrical body.

[0002]

2. Description of the Related Art In recent years, for purification and regeneration of raw water or wastewater in household water purifiers, buildings, condominium water storage tanks, pools, general factory wastewater, etc. It is desirable to have a filter that can process large quantities well.

In the filter used for such an application, the required water-making capacity, that is, the filtration area and the required water quality, differ depending on the application, and can be actually installed at the installation site. Since the installation area and the entrance and exit of raw water and treated water differ depending on the application, it is required to flexibly meet the specifications according to these applications.

As a conventional filter used for such an application, for example, the filter disclosed in Japanese Utility Model Laid-Open No. 63-189390 is known.

In this filter, a U-shaped flow path is formed in a cylindrical container having only a lower end opened so that an inlet / outlet is located at the lower end, and the flow path is filled with a filter medium. A cartridge for fluid treatment is constructed by connecting a plurality of inlets and outlets of this cartridge in series so that the respective flow paths communicate with each other.

On the other hand, as a filter for air treatment, a so-called air filter using a sintered alloy, a filter cloth or the like as a filter medium, and a cartridge filled with a large number of hollow fibers as a filter medium is used in a filter for a clean room. It was being done.

[0007]

However, in the conventional filter described above, when an attempt is made to increase the filtering area, a large number of cartridges corresponding to the filtering area are connected in the horizontal direction, which requires a large installation space. Although the water quality is high, the amount of treated water is reduced by the increase in pipe resistance, and the inlet and outlet positions of raw water and treated water are limited to both ends, so the filtration area, required water quality, installation area, etc. are different. It was impossible to deal with.

The present invention has been made in view of the above circumstances, solves the above problems, and produces a relatively large amount of fluid such as water and air having a high quality of treated water according to the application. An object of the present invention is to provide a filter whose installation area is small and whose filtration area can be easily increased or decreased.

[0009]

In order to achieve the above object, the present invention comprises (a) a cylindrical body and a filter medium filled inside the cylindrical body, wherein the cylindrical axes are arranged in parallel with each other at a predetermined interval. A plurality of cartridges, (b) an upper connector internally having a flow path that connects the upper open ends of the plurality of cartridges in a communicating state, and (c) the lower open ends of the plurality of cartridges in a communicating state. A lower connector internally having a flow path connected to the above, and (d) at least one fluid inlet provided with either the upper connector or the lower connector and having a connecting means; and (e) the upper connector or the lower connector. And at least one fluid outlet having a coupling means provided on the other side of the connector.

Here, at least two inlets or outlets are provided in a plane orthogonal to the cylinder axis of the cartridge in the upper connector or the lower connector, and at least two positions are provided in the direction in which the opening ends thereof are separated from each other. preferable.

Further, a plurality of the filters thus formed may be integrated by connecting them in the cylinder axis direction of the inlet and outlet with connecting means, and the filters thus connected may be further multi-staged in the cylinder axis direction of the cartridge. You may pile up in a shape and may be integrated.

In the case of these filters, the filter medium of the cartridge is sealed at both ends with a sealant at one end of the cylindrical body, and at the other end, the middle portion is bent into a U shape. It is preferably filled in the filled state.

[0013]

When raw water flows in through the inlet provided in either the upper or lower connector of the filter of the present invention, the raw water has a higher flow path resistance of the cartridge than the flow path in the connector. Alternatively, the flow path of the lower connector is filled to a certain pressure. When the fluid pressure in the flow path exceeds the flow path resistance of the cartridge, the raw water passes through the small holes of the hollow fiber of each cartridge at a constant flow rate, and at this point, the foreign matter having an outer diameter equal to or larger than the hole diameter of the small holes of the filter medium Are captured, and the treated water flows out of the outlet through the flow path in the other connector.

[0014]

Embodiments of the filter of the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is a perspective view showing the basic structure of a filter according to the present invention, particularly an industrial water filter, and FIG. 2 is an exploded perspective view of components of the filter of FIG. is there.

As shown in the figure, the filter F1 includes a plurality of cartridges 10, an upper connector 20 and a lower connector 30 which connect the insides of the cartridges 10 in a mutually communicating state, and the connectors 20, 30 to each other. And a blind cap 50 that closes one end of the flow path of each of the connectors 20 and 30.

In the cartridge 10, as shown in FIG. 3, a bundle of hollow fibers 2 made of a semipermeable membrane is bent into a U-shape, and both ends of the hollow fibers 2 are aligned with the open ends of the cylindrical body 1. The outer peripheral surface of the cylinder and the inner peripheral surface of the open end of the cylindrical body 1 are bonded by a thermosetting synthetic resin 3 such as polyurethane resin to partition the inner and outer sides of the cylindrical body, and on the other hand, the outer peripheral surface of the open end is separated. Is equipped with an O-ring 4 for preventing leakage of raw water between the upper and lower connectors 20 and 30. In this cartridge 10, the raw water can be introduced from either the upper opening end or the lower opening end, but normally, when the raw water is introduced from the lower side in the figure, the filtration area of the hollow fiber is high, and It is preferable because foreign matters such as dust and rust in the raw water do not easily stay inside the yarn. The raw water that has flowed in from any of the open ends is formed with a large number of small holes (not shown) formed in the hollow fiber 2 and has a diameter (0.1 to 0.1 mm).
Foreign matter having an outer diameter larger than 0.2 μm) is captured, and filtered filtered water flows out from the upper opening end. In addition, in the present embodiment, the shape of the tubular body in the cross section perpendicular to the axis is a cylindrical shape, but it may be a rectangular shape, and the filter medium also has a type of fluid, a treatment amount, and a degree (quality) of treatment. Various materials such as granular activated carbon, filter cloth, and wire mesh can be used according to the conditions. As for the O-ring 5, it suffices to prevent the raw water or the treated water from leaking between the cylindrical body 1 and the respective connectors 20 and 30. Therefore, a flange and a ring-shaped packing (not shown) provided at the open end of the cylindrical body 1 are required. You may seal with.

As shown in FIG. 4, the upper connector 20 and the lower connector 30 are both synthetic resin moldings having the same shape, and flow passages extending linearly in one direction at the center of the flange 21 (31). Cylindrical body 23 having 22 (32)
(33) is provided, and a cartridge connection port 24 (34) of a constant length extending in a direction orthogonal to the flow path 22 (32) is provided on each side of the cylindrical body 23 (33). The communication ports 25 (35) provided at the connection ports are provided at regular intervals in communication with the flow path 22 (32). In addition, on both sides of the flange 21 (31), a plurality of notches 2 are formed as the insertion ports of the bolts 41 that are the fasteners 40.
6 (36) is formed, and the cylindrical body 23 (33) is further formed.
Male threads 27 (37), which are connection means for connecting to a source of raw water, an appropriate pretreatment device of raw water, or a filtered water supply device, which are not shown, are formed on the outer peripheral surfaces of both ends of This part becomes the inlet A of raw water or the outlet B of filtered water. It is sufficient that at least one inlet A and at least one outlet B are provided for each connector. However, as in the present embodiment, the inlet A and the outlet B are in a plane orthogonal to the cylinder axis of the cartridge at the upper connector or the lower connector, and It is preferable that the opening ends are provided at least at two positions in a direction away from each other. However, it is needless to say that three or more may be provided for each connector depending on design conditions such as the amount of treated water, filtration area, and piping. Further, the fastener 40 has the male screw 27 (30).
Besides, of course, a connecting means such as a flange or a union joint may be used, and it is preferable to use a commercially available one-touch coupler joint because they can be easily connected.

The fastener 40 is the bolt 4 in this embodiment.
1, a washer 42 and a nut 43, and the plurality of cartridges 10 are connected to the upper connector 20 and the lower connector 30.
Although it is integrated by sandwiching the cartridge 10 from above and below, the cartridge 10 and the connectors 20 and 30 can be directly connected without using such a fastener 40, for example, by a flange or the like provided on both. Or, since such connection work is troublesome, the inner diameter of the connection port (34) of each connector and the outer diameter of the cylindrical body 1 can be attached and detached so that raw water or filtered water does not leak. It may be manufactured with the tolerance of to make a tight fitting connection.

As described above, the filter F1 of this embodiment has a total of eight cartridges 1 as shown in FIG.
0 from the top and bottom of the upper connector 20 and the lower connector 3
It is sandwiched between 0 and 0, and both connectors are connected by a fastener 40 such as a bolt or a nut to be integrated.

As shown in FIG. 5, when raw water flows in through the inlet A of the lower connector 30 of the filter F1, the raw water is
Since the flow path resistance of the cartridge 10 is higher than the flow path resistance of the flow path 32 of the lower connector 30, the flow path of the lower connector is first filled uniformly. When the fluid pressure in the flow path 32 exceeds the flow path resistance of the cartridge, the raw water passes through the small holes of the hollow fiber 2 of each cartridge at a constant flow rate, and at this time, foreign matter having an outer diameter larger than the small hole inner diameter is captured. The filtered water is collected in the flow path 22 of the upper connector 20 and flows out from the outlet B thereof.
In this case, each cartridge 10 and each connector 20, 30
Raw water or treated water tries to leak to the outside between the connection ports 24 (34) of the above, but the O-ring 5 mounted on the cylindrical body 1 blocks this.

Therefore, in the filter F1, a plurality of cartridges 10 are arranged in parallel at predetermined intervals with the cylinder axis in the vertical direction, and the connectors 20, 20 are connected to the cartridges.
Since 30 is configured to be removable, it is possible to use a cartridge 10 having different inner diameters and vertical lengths prepared in advance and adjust the number of the cartridges 10 to be installed according to the application even if the installation area is small. The filtration area can be easily increased or decreased, and a large amount of filtered water with high water quality can be obtained. In addition, since the passages 22 (32) of the respective connectors 20 and 30 are provided with four openings for each of the two inlets and outlets for the raw water or the treated water, a total of four openings are provided for the piping at the actual installation position. If the mounting position of the blind cap 50 is changed according to the fitting condition, an excellent effect that it is possible to easily cope with some restrictions can be obtained.

Embodiment 2 The filter F2 shown in FIG. 6 has the structure shown in FIG.
The two filters of (1) are connected by the connecting means 70 in the axial direction of the flow path of the connector to be integrally formed.

That is, in this filter F2, another filter F1 is additionally provided on the inlet / outlet side of the filter F1 shown in FIG. 1, the blind cap 50 of the filter provided is removed, and then each filter is filtered. The inlet A and the outlet B of the container are connected with a union joint 71, and the flanges 21 and 31 of the upper connector 20 and the lower connector 30 are attached to the bolt 41 located near the inlet and outlet with the fitting 72 and fixed with the nut 73. It was done.

In the filter F2 thus constructed, when raw water flows in through the inlet A, the total of 16 cartridges are filled in the channels 32 of the lower connectors 30 of the two filters F1. After being collectively filtered at 10, water is similarly simultaneously collected within the channels 22 of the upper connectors 20 of the two filters F1. Therefore, this filter F2 is
The filtration area can be doubled by a simple operation of simply connecting with the connecting means 70 such as the union joint 71. If a larger filtration area is required, it is sufficient to connect three or more blocks of the filter F1 in series in the horizontal direction. Also in the filter F2 thus configured, the flow path switching member 60 is also provided. Needless to say, the desired quality of treated water and the desired amount of treated water can be easily obtained by applying different kinds of filter media to the cartridge.

Third Embodiment A filter F3 in FIG. 7 is a perspective view of another embodiment using the filter F1 or the filter F2. This filter F3
In order to further improve the filtering accuracy of the filters F1 and F2, the cartridge 10 is provided in multiple stages in the cylinder axis direction by providing the filter F1 or the filter F2 with the intermediate connector 80 shown in FIG. Stacking, filter F1 or filter F2
Are arranged in series.

As shown in FIG. 8, the intermediate connector 80 has substantially the same structure as the upper and lower connectors 20 and 30, except that both ends of the intermediate connector are closed. That is the point.

That is, as shown in FIG. 7, the filter F3 separates the cartridge 10 and the upper connector 20 of the filter F1 from each other, and the two intermediate connectors are provided in this space and each intermediate connector is provided. Further, eight cartridges 10 each are provided between 80 and between the intermediate connector 80 and the upper connector 20, and the connectors are alternately arranged so that the bolts 41 do not interfere with each other, and are integrally formed.
This is a series of three stages of flow paths.

As shown in FIG. 9, the filter F of this embodiment is
3, reference numeral 3 denotes raw water that has flowed in from an inlet pipe P1 from a device (not shown), as indicated by arrows, a lower connector 30, a lower cartridge 10, an intermediate connector 80, an interrupted cartridge 10, an intermediate connector 80, an upper cartridge 10, and an upper connector. It reaches the outlet B of 20 and is supplied from the outlet pipe P2 to an apparatus for using filtered water (not shown).

That is, the filter F3 thus constructed
Is a flow path in which upper, middle, and lower three-stage cartridges are arranged in series as compared with the filter F1 of FIG. 1, so that the filtration accuracy can be greatly improved even though the installation area is narrow. Have.

The use of the filter of the present invention is as follows.
Like condominium water tanks, pools, general factory drainage,
Purification and recycling of various liquids, as well as sintered alloys in cylindrical bodies,
By filling the filter material for gas treatment such as filter cloth and wire mesh,
Of course, it can be applied to purify various gases in a clean room or the like.

[0032]

As described above, in the filter of the present invention, a plurality of cartridges are arranged in parallel at predetermined intervals with the cylinder axis of the cylindrical body in the vertical direction, and the upper and lower connectors are attached to the cartridges. Since they are detachably connected, various cartridges with different inner diameters, lengths, types of filling filter media, etc. are prepared in advance according to the application, and the number of the cartridges can be adjusted when assembling the filter to suit the application. A large amount of filtered water of high water quality can be easily added or removed even with a small installation area.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a filter according to the present invention.

FIG. 2 is an exploded perspective view of the filter of FIG.

3 is a vertical cross-sectional view of a cartridge used in the filter of FIG.

4 is a perspective view of upper and lower connectors used in the filter of FIG. 1. FIG.

5 is a vertical cross-sectional view of the filter of FIG.

FIG. 6 is a perspective view of an embodiment of a filter different from the filter of FIG. 1.

FIG. 7 is a partially cutaway perspective view of a filter according to an embodiment different from that of the filter of FIG. 6;

8 is a perspective view of an intermediate connector used in the filter of FIG. 7.

9 is a vertical cross-sectional view of the filter of FIG.

[Explanation of symbols]

 1: Cylindrical body (cylindrical body) 2: Hollow fiber (filter material) 5: O-ring 10: Cartridge 20: Upper connector 22, 25, 32, 35: Flow path 40: Fastener 50: Blind cap 60: Flow path switching member 70: Connection means 80: Intermediate connector F1-F3: Filter A: Inlet B: Outlet

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B01D 63/02 6953-4D 65/00 8014-4D

Claims (5)

[Claims] 1. A plurality of cartridges comprising: (a) a tubular body and a filter medium filled in the tubular body, wherein the tubular axes are arranged in parallel with each other at a predetermined interval; and (b) a plurality of the cartridges. An upper connector internally having a flow path connecting the upper open ends to each other in communication, and (c) a lower connector internally having a flow path connecting the lower open ends of the plurality of cartridges to each other, ) At least one fluid inlet having a connecting means provided on either the upper connector or the lower connector, and (e) at least one fluid connecting means provided on the other of the upper connector or the lower connector. A fluid outlet, and a filter. 2. The inlet or outlet is provided in at least two places in a plane orthogonal to a cylinder axis of the cartridge in the upper connector or the lower connector, and in a direction in which the opening ends thereof are separated from each other. The filter according to claim 1, wherein: 3. A filter according to claim 2, wherein a plurality of filters are connected in the axial direction of said inlets or outlets by connecting the inlets or outlets of said filters with connecting means. 4. A plurality of cartridges are provided between the plurality of cartridges according to claim 3 and the upper connector at positions corresponding to the connection ports of the upper connector, and the plurality of cartridges provided therebetween. And a plurality of cartridges, wherein an intermediate connector having therein a flow path for communicating open ends of the cartridges with each other is provided. 5. The filter medium is filled in such a manner that both ends thereof are sealed with a sealant in an open state at one end of the tubular body and a middle portion is bent in a U shape at the other end. The filter according to any one of claims 1 to 4, which is a hollow fiber membrane obtained by the above.