JP3250274B2 - Filter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a filter for a fluid such as water or air, and more particularly to an improvement in a so-called cartridge type filter in which a filter material is filled in a cylindrical body.

[0002]

2. Description of the Related Art In recent years, raw water or wastewater has been efficiently purified in a state of high filtration water quality for purification and regeneration of raw water or wastewater in buildings, condominium reservoirs, pools, general factory drainage, etc., including home water purifiers. There is a need for a filter that can be well processed in large quantities.

[0003] In a filter used for such an application, the required water production capacity, that is, the filtration area and the required water quality are different for each application, and the filter can be actually installed at the installation site. Since the installation area and the inlet and outlet of raw water and treated water are different for each application, it is required to be able to flexibly cope with specifications according to these applications.

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

In this filter, a U-shaped flow path is formed inside a cylindrical container having only a lower end portion opened so that an entrance is located at a lower end portion, and a filter medium is filled in the flow path. Thus, a cartridge for fluid treatment is constructed, and a plurality of inlets and outlets of the cartridge are connected in series with connectors so that respective flow paths communicate with each other.

On the other hand, as a filter for air treatment, in addition to a so-called air filter using a sintered alloy, a filter cloth or the like as a filter material, a cartridge filled with a large number of hollow fibers as a filter material is used for a filter for a clean room. Had been.

[0007]

However, in order to increase the filtration area, the above conventional filter requires a large installation space because the number of cartridges corresponding to the filtration area is connected in the horizontal direction. Although the water quality is high, the treated water volume is reduced by the increase in the 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. Could not respond at all.

The present invention has been made in view of the above circumstances, and solves the above-mentioned problems. A relatively large amount of fluid such as water or air having high treated water quality can be obtained according to the application. It is an object of the present invention 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 provides: (a) a cylindrical body having openings at the upper end and the lower end;
Containing a filter medium filled in the interior of the cylinder, and the axis of the cylinder
Are arranged at predetermined intervals so that
Communicating with the number of the cartridge, the upper ends of the plurality of cartridge therein (b)
Communicating with the upper connector, the lower ends of the plurality of cartridge therein (c) having a flow path
A lower connector having a flow path, (d) provided on one of the connector, and at least one fluid inlet having a connecting means, (e) provided on the other connector, the at least one having a connecting means One of the fluid outlet, and wherein the filter which has a.

The present invention also provides (a) a cylindrical body having openings at an upper end and a lower end, and
Containing a filter medium filled in the interior of the cylinder, and the axis of the cylinder
Are arranged at predetermined intervals so that
Communicating with the number of the cartridge, the upper ends of the plurality of cartridge therein (b)
Communicating with the upper connector, the lower ends of the plurality of cartridge therein (c) having a flow path
A lower connector having a flow path, and (d) connecting means provided in one of the connectors.
And (e) connecting means provided on the other connector.
At least one fluid outlet and (f) connect and fasten the upper connector and the lower connector
And a fastener comprising:

Here, a plurality of filters as described above are arranged side by side.
When the upper connectors are connected by connecting means
In both cases , the lower connectors may be connected to each other by connecting means to be integrated , and each cartridge may be connected to an intermediate connector.
Multiple cartridges connected in series via
And the intermediate connector has several
A flow path communicating the cartridges may be provided.

In the case of these filters, the filter medium of the cartridge is preferably composed of a hollow fiber membrane bundle bent in a U-shape .

[0013]

When raw water flows from an 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, fill the lower connector flow path until the pressure becomes constant. 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 fibers of each cartridge at a constant flow rate, and at this time foreign matter having an outer diameter equal to or larger than the diameter of the small holes of the filter medium. Is trapped, and the treated water flows out of the outlet through the flow path in the other connector.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment 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 a 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 FIG. 1, the filter F1 includes a plurality of cartridges 10, an upper connector 20 and a lower connector 30 for connecting the insides of the cartridges 10 to each other, and a mutual connection between the connectors 20, 30. , And a blind cap 50 for closing one end of the flow path of each of the connectors 20 and 30.

As shown in FIG. 3 , the cartridge 10 is formed by bending a bundle of hollow fibers 2 formed of a semi-permeable membrane into a U-shape, so that both end surfaces thereof are aligned with the open end of the cylindrical body 1. The inner and outer surfaces of the cylindrical body are partitioned by bonding the outer peripheral surface of the end portion and the inner peripheral surface of the open end of the cylindrical body 1 with a thermosetting synthetic resin 3 such as polyurethane resin. And an O-ring 5 for preventing leakage of raw water between the upper and lower connectors 20 and 30. In this cartridge 10, the raw water can flow in from either the upper open end or the lower open end. Usually, the raw water flows in from the lower side of the drawing because the filtration area of the hollow fiber is higher, and It is preferable because foreign matters such as dust and rust in raw water hardly stay inside the yarn. The raw water that has flowed from one of the open end, the foreign matter having a large number formed by being not shown small holes in outer diameter greater Ri by its pore diameter in the hollow fiber 2 is captured, filtered filtered water upper opening Spills from the edge. In the present embodiment, the shape of the cylindrical body in the section perpendicular to the axis is cylindrical, but it may be rectangular, and the type of the fluid, the amount of treatment, and the degree of treatment (quality) of the filter medium are also possible. Various types such as granular activated carbon, filter cloth, wire mesh, and the like can be used depending on the like. The O-ring 5 also needs to prevent leakage of raw water or treated water between the cylindrical body 1 and each of the connectors 20 and 30. Therefore, a flange (not shown) provided at the open end of the cylindrical body 1 and a ring-shaped packing are used. May be sealed.

As shown in FIG. 4, the upper connector 20 and the lower connector 30 are formed of a synthetic resin having the same shape, and extend linearly in one direction at the center of the flange 21 (31). A cylindrical body 23 having 22 (32)
(33) are provided, and a cartridge connection port 24 (34) of a fixed length extending in a direction orthogonal to the flow path 22 (32) is provided on both sides of the cylindrical body 23 (33). The communication port 25 (35) provided at the connection port is provided at a constant interval in communication with the flow path 22 (32). Also, a plurality of notches 2 serving as insertion holes for bolts 41 which are fasteners 40 are provided on both sides of the flange 21 (31).
6 (36) are formed, and the cylindrical body 23 (33)
Male threads 27 (37) are formed on the outer peripheral surfaces of both ends of the both ends as connecting means for connecting to a raw water source or a suitable pretreatment device (not shown) or a filtered water supply device by piping. This portion is the inlet A of the raw water or the outlet B of the filtered water. The inlet A and outlet B is sufficient as long as there is at least one for each connector, in a plane perpendicular to the <br/> axis of the cartridge of the cylindrical body of the upper connector or lower connector as in this embodiment rather is preferably the provided two positions even without least, the treatment water, filtration area, changed by design conditions such as a pipe. In addition, the fastener 40 is a male screw 2
Other than 7 (30), of course, connection means such as a flange and a union joint may be used, and it is preferable to use a commercially available one-touch coupler joint because it can be easily connected.

The fastener 40 is a bolt 4 in this embodiment.
1, a plurality of cartridges 10 each including an upper connector 20 and a lower connector 30.
The cartridge 10 and the connectors 20 and 30 are directly connected without using such a fastener 40, for example, by a flange or the like provided on both of them. Alternatively, since such a connection work is troublesome, the inner diameter of the connection port (34) of each connector and the outer diameter of the cylindrical body 1 are set to such an extent that the raw water or the filtered water does not leak and that the connection is removable. It may be manufactured with a tolerance of 2.

As described above, the filter F1 of the present embodiment has a total of eight cartridges 1 as shown in FIG.
0, the upper connector 20 and the lower connector 3 from above and below.
0, and the two connectors are connected to each other by fasteners 40 such as bolts and nuts to form an integral unit.

As shown in FIG. 5, when raw water flows in from the inlet A of the lower connector 30 of the filter F1, the raw water becomes
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 uniformly filled. 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 substances having an outer diameter equal to or larger than the inner diameter of the small holes are captured. The filtered water is collected in the flow path 22 of the upper connector 20 and flows out from the outlet B.
In this case, each cartridge 10 and each connector 20, 30
The raw water or the treated water tends to leak to the outside between the connection ports 24 (34), but the O-ring 5 attached to the cylindrical body 1 prevents this.

Therefore, in the filter F1, a plurality of cartridges 10 are arranged in parallel at a predetermined interval with the cylinder axis in the vertical direction, and each connector 20
Since the cartridge 30 is configured to be detachable, using a cartridge 10 having a prepared inner diameter and a vertical length different from each other, and adjusting the number of the cartridges to be installed, even if the installation area is small, it can be adjusted according to the application. The filtration area can be easily increased or decreased, and a large amount of high-quality filtered water can be obtained. In addition, the flow path 22 (32) of each of the connectors 20, 30 is provided with a total of four openings, each of which serves as an inlet / outlet for raw water or treated water, so that piping at the actual installation position is provided. 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 In order to increase the filtration area, the filter F2 of FIG.
Are connected integrally in the flow path axial direction of the connector by the connecting means 70 to form an integral unit.

That is, in the filter F2, another filter F1 is additionally provided on the inlet / outlet side of the filter F1 shown in FIG. 1, and after removing the blind cap 50 of the provided filter, the respective filters are removed. The inlet A and the outlet B of the container are connected to each other by a union joint 71, and the flanges 21 and 31 of the upper connector 20 and the lower connector 30 are connected to the bolt 41 located near the entrance and exit by attaching a connection fitting 72 and fixed by a nut 73. It was done.

When raw water flows in from the inlet A, the filter F2 thus configured fills the flow path 32 of each lower connector 30 of the two filters F1, and then a total of 16 cartridges 10 , The water is collected simultaneously in the channel 22 of the upper connector 20 of the two filters F1. Therefore, the filter F2 is merely a simple operation of simply connecting a connecting means 70 such as a union 71, it is possible to increase the filtering area doubles. If a larger filtration area is required, the filter F1 can be connected in series in the horizontal direction for three or more blocks ,
It is of course easily obtained the treated water and process water of Nozomu Tokoro.

Embodiment 3 A filter F3 shown 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 filtration accuracy of the filters F1 and F2, the cartridge 10 is provided in multiple stages in the cylinder axis direction by interposing the intermediate connector 80 shown in FIG. 8 to the filter F1 or F2. Stack, filter F1 or filter F2
Are arranged in series.

As shown in FIG. 8, the intermediate connector 80 has substantially the same configuration as the upper and lower connectors 20 and 30, but differs in that both ends of the intermediate connector are closed. It is a point.

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

As shown in FIG. 9, the filter F of this embodiment
Reference numeral 3 denotes raw water flowing 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, a suspended cartridge 10, an intermediate connector 80, an upper cartridge 10, an upper connector Then, the water reaches the outlet B at 20 and is supplied from the outlet pipe P2 to a device for using filtered water (not shown).

That is, the filter F3 thus constructed
Is a flow path in which three stages of cartridges, upper, middle, and lower, are arranged in series as compared with the filter F1 of FIG. 1, so that the filtering accuracy is greatly improved while having a small installation area. Have.

The filter of the present invention is used for the above-mentioned building,
Like apartment water storage tanks, pools, general factory drainage, etc.
In addition to purifying and recycling various liquids, sintered alloys on cylindrical bodies,
By filling filter media 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 according to the present invention, a plurality of cartridges are arranged in parallel at a predetermined interval with the cylindrical axis of the cylindrical body up and down, and the upper and lower connectors are connected to the cartridges. Because it is detachably connected, various cartridges with different inner diameters, lengths, types of filled filter media, etc. according to the application are prepared in advance, and the number of attachments is adjusted when assembling the filter according to the application. The filtration area can be easily increased or decreased even if a large amount of high-quality filtered water is used and the installation area is small.

[Brief description of the 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.

FIG. 3 is a longitudinal sectional view of a cartridge used in the filter of FIG.

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

FIG. 5 is a longitudinal sectional view of the filter of FIG.

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

7 is a perspective view, partially broken away, of a filter according to a further different embodiment from the filter of FIG. 6;

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

FIG. 9 is a longitudinal sectional view of the filter of FIG. 7;

[Explanation of symbols]

1: cylinder (cylindrical member) 2: hollow fiber (filter medium) 5: O-ring 10: Cartridge 20: upper connector 22,25,32,35: passage 40: fastener 50: blind cap 7 0: connecting means 80: Intermediate connector F1-F3: Filter A: Inlet B: Outlet

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B01D 61/00-65/00

Claims (5)

(57) [Claims] (1) An opening is provided at an upper end and a lower end.
A cylindrical body and a filter medium filled inside the cylindrical body;
And at predetermined intervals so that the axes of the cylinders are parallel to each other.
Communicating with the plurality of cartridges are columns, the upper ends of the plurality of cartridge therein (b)
Communicating with the upper connector, the lower ends of the plurality of cartridge therein (c) having a flow path
A lower connector having a flow path, (d) provided on one of the connector, and at least one fluid inlet having a connecting means, (e) provided on the other connector, the at least one having a connecting means filter, characterized in that it comprises One of the fluid outlet, a. 2. An opening is provided at an upper end and a lower end.
A cylindrical body and a filter medium filled inside the cylindrical body;
And at predetermined intervals so that the axes of the cylinders are parallel to each other.
Communicating with the plurality of cartridges are columns, the upper ends of the plurality of cartridge therein (b)
Communicating with the upper connector, the lower ends of the plurality of cartridge therein (c) having a flow path
A lower connector having a flow path, and (d) connecting means provided in one of the connectors.
And (e) connecting means provided on the other connector.
At least one fluid outlet and (f) connect and fasten the upper connector and the lower connector
Filter, wherein the fastener, in that it comprises that. 3. A plurality of filters according to claim 1 or 2 arranged side by side.
And the upper connectors are connected by connecting means.
Also, do not connect the lower connectors
Filter, characterized in that that. 4. The filter according to claim 1, wherein
Each cartridge is connected in series via an intermediate connector.
Consisting of a series of cartridges
Connect multiple cartridges inside the connector
A filter provided with a flow path . 5. The hollow fiber membrane according to claim 5, wherein said filter medium is a U-shaped hollow fiber membrane.
The filter according to any one of claims 1 to 4 , comprising a bundle .