JPS5867311A - Filter for fluid - Google Patents

Abstract

PURPOSE:To extremely reduce a resistance of a filter, by partitioning a casing of a filter for fluid into a front chamber and a rear chamber with a partitioning filter, and enclosing an adsorbent in the front chamber and covering the peripheral part of a fluid discharging port of the rear chamber with an annular filter. CONSTITUTION:A casing 2 is partitioned into a front chamber 13 and a rear chamber 14 by forming a small diametral part 11 in the casing 2 and fixing a partitioning filter 12 made of nonwoven fabric, etc. to the side of a fluid flow- in port 3 of the part 11. An adsorbent 8 such as an activated carbon is packed in the chamber 13, and a bellows-shaped annular filter 15 covering the peripheral part of a liquid discharging port 4 is provided to the inside of the chamber 14. Tap water flowed into the chamber 13 from the port 3 through a filter 6 flows into the chamber 14 through the filter 12 after removing its containing impurities by the adsorbent 8. The tap water flowed into the chamber 14 flows to the filter 15 without receiving any hindrance and is discharged from the port 4 after furthermore removing impurities.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid filter for removing impurities mixed into a liquid.

In 2015, some vending machines started dispensing drinks such as coffee, but these drinks (1) are made using regular tap water. A liquid filter is built in to remove impurities such as limescale from the tap water.The liquid filter has conventionally been constructed as shown in FIG.

That is, ■ is the H'l immersion filter, and both &i! A has an open cylindrical casing 2, one end of which is open is a liquid inlet 3, and the other end is closed with a cover 5 having a liquid discharge port 4 approximately in the center. It is.

A primary filter is attached to the dispersion inflow D8, and a cylindrical secondary filter 7 is attached to the liquid discharge port 4. agent 8 is enclosed. Face, previous W self-next.

The secondary filter 6.7 is made of nonwoven fabric, and the absorbent 8 is made of activated carbon. The tap water that has passed through the pre-inner filter and flowed into the casing 2 from the main inlet 8 has impurities such as scale and dust removed by the adsorbent 8, and then passes through the secondary filter 7. The liquid is discharged from the liquid discharge port 4. In the figure, arrows indicate the flow of tap water.

By the way, in general, for liquid filters, it is desirable that the resistance (in this case, tap water) is low, that is, the resistance at the point where the liquid (tap water in this case) enters from the liquid inlet 3 and is discharged from the liquid outlet 4, that is, the filter resistance is small. .

However, in order to reduce the filter resistance of such a conventional liquid filter 1, it is conceivable to increase the diameter r of the secondary filter 7 and increase the liquid flow rate 1 of the secondary filter 7. When the secondary filter diameter r is increased in this way, the imprinting space d of the adsorbent 8 filled between the periphery of the secondary filter 7 and the casing 2 is reduced,
The flow 1111 resistance in the space d portion, and by extension the overall filter resistance, become smaller. In this way, in the conventional liquid filter 1, there is a contradictory relationship between the diameter r of the secondary filter 7 and the enclosed space d of the adsorbent 8 in order to reduce the filter resistance. . Therefore, the conventional liquid filter 1 has a problem in that it is impossible to reduce the filter resistance while maintaining the compactness of the liquid filter 1 itself.

The present invention takes advantage of the conventional technology and divides the inside of the casing into a front chamber on the liquid inlet side and a rear chamber on the liquid discharge side by means of a partition filter, and absorbs the adsorbent only in the front chamber. At the same time, by making the rear chamber into a space and arranging an annular filter that covers the periphery of the front liquid 111-outlet in the rear chamber, the filter can be maximized. The purpose of the present invention is to provide a liquid filter that can significantly reduce the amount of water used.

Hereinafter, embodiments of the invention will be described in detail based on the drawings.

In describing the embodiments of the present invention, the same reference numerals are given to the same and equivalent parts as those of the conventional example. is a casing, 3 is a 1w body inlet, 4 is a liquid discharge port, 6 is a primary filter, and 5 is a cover.Here, the present invention forms a small diameter part 11 in the casing 2, and this small diameter &1511. A partition filter 12 made of non-woven fabric or the like is fully locked on the side of the liquid inlet a, and the side of the liquid inlet s separated by the partitioned filter 12 is defined as the front chamber 13, while the side of the liquid discharge port 4 is set as the front chamber 13. The front chamber 13 has a primary filter, a partition filter 12, and a casing 2 to form one partition, and the front chamber 13 contains an adsorbent 8 such as activated carbon. - The rear chamber 14 is a space, and within this rear chamber 14, there is a secondary filter that covers the periphery of the liquid discharge port 4. An annular filter 15 is disposed therein.I6 is an end plate.

With the above configuration, in the uninvented liquid filter 10, the liquid inlet 8 passes through the entire negative filter to the front chamber 13.
The tap water that has flowed into the rX chamber 13 passes through the partition filter 1 while impurities are removed by the adsorbent 8 in the rX front chamber 13.
2 flows into the rear chamber 14. And the rear chamber 14
The tap water that has flowed into the interior reaches the peripheral edge of the annular filter 15 without being harmed by 1%, passes through the annular filter 15 while further removing impurities, and is discharged from the liquid discharge port 4. be discharged.

Therefore, since the adsorbent 8 does not exist in the space between the periphery of the annular filter 15 and the casing 2 as in the conventional case, the diameter R of the beak-shaped filter 15 is increased and the diameter R of the beak-shaped filter 15 is increased. Even if the space is made small to some extent, the flow resistance passing through the space is hardly affected. Therefore,
According to the present invention, the diameter R of the annular filter 15 can be made as large as possible without affecting the flow resistance of the space, and the liquid budding area of the annular filter t5 can be expanded. Significantly reduces filter resistance.

By the way, although detailed drawings have been omitted in the above embodiment, the annular filter 15 is shaped like a bellows f2'V.By making the annular filter 15 into a bellows shape in this way, a wisteria annular filter is formed. 15 liquid'sa,
The area of the IA section can be expanded, and the filter resistance can be significantly reduced.

It's a trench, the previous one is 1 box filled and 12 is just 11 buns ashore] 8
It's fine if it's rough enough to pass through on the 1st floor, and you can just ignore the passing resistance.

In addition, the uninvented fluid filter is used in the IyJJ sales system as explained in Section 1 above, using tap water as the fluid, but it is limited to this tap water. However, it is also possible to use an adsorbent that matches the liquid being used.

1, + +-As explained above, in the uninvented t' temporary rod filter, a liquid inlet is formed at -1Iiii,
It has a casing with a temporary female outlet 11" formed at the other end,
The casing is completely separated into a front chamber on the liquid inlet side and a rear chamber on the side of the liquid inlet, and
In addition to enclosing a sedative in the front chamber, an annular filter covering the periphery of the adult discharge port is provided within the chamber, so that there is no space between the shielding annular filter and the front casing. A space is simply formed, and the space is j
[II] Since the passage resistance of the liquid is extremely small, the diameter of the annular filter can be increased. Only 1. Temporarily buried filter,
・It has the advantageous effect that the liquid flow 11 can be enlarged to the dog 1111, and the filter 11 (resistance can be significantly reduced).

4. Notes on Figure M1 Figure 1 is a cross-sectional view of a conventional liquid filter, and Figure 2 is a new and old diagram of an uninvented one-piece filter.

1.10...Liquid filter 2...Casing 3...Liquid inlet 4...Liquid discharge port 6... ...... - Next filter 8 ...... Adsorbent 12 ...... Separation filter 13 ...... Front chamber 14 ...・・・・・・Rear chamber 15・・・・・・Annular filter Applicant: Toshin Uki Co., Ltd. Agent
Patent Attorney - Ken Iro

Claims (2)

[Claims] (1) It has a casing in which a liquid inlet is formed at one end and a liquid outlet is formed at the other end, and this caning circle is separated by a partition filter between the front chamber on the liquid inlet side and the liquid outlet side. A liquid filter, characterized in that the liquid filter is separated from a rear chamber, a suction abrasive is enclosed only in the front chamber, and an annular filter is disposed in the rear chamber to cover a peripheral edge of the liquid discharge port. (2) The liquid filter according to item 1 of the scope of item (k) of the patent, wherein the annular filter is formed into a bellows shape.