JPH1190126A - Strainer having sterilizing member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a strainer capable of filtering foreign matter such as dust, scrap iron incorporated in various fluids and also sterilizing the flowing fluid. SOLUTION: The strainer 1 having a sterilizing member is constituted so that a flow-in passage 3 and a flow-out passage 4 are formed by a casing 2 and a cylindrical screen 5 and a filter 12 as filtration members are arranged therebetween. The filter 12 is formed by laminating a sterilizing fiber and a sterilizing coating material is applied on a contact place of each member in the casing with the fluid. As a result, the foreign matter is filtered by the screen 5 and the filter 12 and fungi or the like in the fluid is sterilized by the sterilizing coating material or the sterilizing fiber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strainer for filtering foreign matter such as dust and iron rust contained in fluids such as water, hot water, steam, compressed air and various gases, and more particularly, to a strainer for filtering foreign matter. The present invention relates to a strainer having a sterilizing member capable of sterilizing a fluid flowing down the strainer.

[0002]

2. Description of the Related Art A conventional strainer is disclosed, for example, in Japanese Patent Application Laid-Open No. 7-303806. This is a filter in which a cylindrical screen as a filtering member is arranged and formed integrally with the valve member, and foreign matter such as dust and rust mixed into the fluid by the cylindrical screen is removed. It can be filtered.

[0003]

The above-mentioned conventional strainer can filter foreign substances contained in the fluid, but cannot remove even bacteria mixed in the fluid.

[0004] Various fluids contain not only foreign substances such as dust and rust, but also fungi such as molds, food poisoning bacteria and other various bacteria, or, in some cases, influenza viruses and pathogenic bacteria. In the process of foods, beverages, pharmaceuticals, etc., it must be surely removed together with foreign substances, or if all of them cannot be removed, they must be sterilized or sterilized to a predetermined number or less.

Accordingly, an object of the present invention is to provide a strainer capable of reliably separating and eliminating foreign matters such as dust and rust and removing fungi contained in a fluid.

[0006]

In order to solve the above-mentioned problems, the means of the present invention is to sequentially form a fluid inflow path, a filter member and a fluid outflow path, and mix the fluid in the fluid with the filter member. For filtering foreign substances such as dust, rust, scale, etc., at least one of
A sterilizing member for sterilizing fungi mixed in the fluid is attached to the location.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS By attaching a sterilizing member to at least one of the inflow channel, the filtering member and the outflow channel,
Fungi contained in the fluid flowing into the strainer are sterilized and disappeared or their number is reduced to a predetermined amount or less.

[0008] The disinfecting member is formed by forming a fiber surface-treated with various disinfectants or antibacterial agents into a filter shape, or by applying a disinfectant paint containing a disinfectant, a disinfectant or an antibacterial agent as a component. Can be. A sterilizing member includes not only a sterilizing action but also a sterilizing action, an antibacterial action, and a sterilizing action.
As the bactericide, for example, a conventionally known bactericide such as a silver zeolite-based bactericide in which silver is supported in zeolite particles or a halamine polymer bactericide can be used according to the fluid or the bacterium.

The sterilizing member can be attached to or applied to the inlet of the strainer, attached to or applied to the filtering member, or attached to or applied to the outlet of the strainer. It can also be attached to or applied to.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a strainer 1 is called a so-called Y-shaped strainer, and a casing 2 has a fluid inlet 3 and a fluid outlet 4, and a cylindrical screen as a filtering member. And a layered filter 12 disposed on the outer periphery of the cylindrical screen 5, that is, on the outflow path 4 side, and a holding plug 6 for holding the screen 5 by screwing to the casing 2 is provided. Things.

In this embodiment, a spherical valve member 8 having a flow hole 7 is arranged in the inflow passage 3. A valve shaft 9 is fitted to the valve member 8, and the valve member 8 is rotatable from the outside via the valve shaft 9 by the handle 10. A ring-shaped valve seat ring 11 made of synthetic resin or synthetic rubber is provided around the valve member 8.
Is attached to maintain airtightness around the valve member 8.

Each of the members, namely, the casing 2, the inflow passage 3, the valve member 8, the valve seat ring 11, the screen 5, the holding plug 6, and the outflow passage 4 is hardly rusted and resistant to corrosion. It is preferable that the member is made of stainless steel having excellent properties, and a sterilizing paint (not shown) is applied to a portion of each member that contacts the fluid. Therefore, the fungi mixed in the fluid flowing down the casing 2 are sterilized by the sterilizing paint and disappear, or the number thereof is reduced to a predetermined amount or less.

The tubular screen 5 is formed by forming a thin plate of stainless steel having a large number of small-diameter through holes into a tubular shape.
The filter 12 is also cylindrical and attached to the outer periphery of the screen 5. The filter 12 is formed by laminating a number of long fibers, and the long fibers are used as sterilizing fibers. Therefore, while the fluid passes through the filter 12, the fungi contained in the fluid are killed.

By rotating the holding plug 6 to loosen the screw connection, the screen 5 and the filter 12 can be removed from the casing 2, and the screen clogged with the foreign matter such as dust and rust is filtered. -Replacement or replacement of the filter 5 or the filter 12 or cleaning can be performed.

In this embodiment, the fluid to the strainer 1 can be closed by rotating the valve member 8 to a closed state as shown in FIG. 1, and a separate valve member for closing is provided. Without providing, screen 5 and filter 12
Can be replaced or cleaned.

In this embodiment, an example is shown in which the sterilizing paint is applied to all parts of the casing 2 which come into contact with the fluid, and the filter 12 is formed of sterilizing fibers. If necessary, the portion to be coated may be a part of the contact portion with the fluid, and the portion where the filter 12 made of sterilizing fiber is used is not limited to the outer periphery of the screen 5. , Can be mounted inside the casing 2 as required.

In this embodiment, an example of a Y-type strainer is shown, but other well-known strainers, such as U-type, W-type and temporary-type strainers, may also be used. The present invention is not limited to the strainer and can be similarly applied to a double strainer.

[0018]

According to the present invention, foreign substances such as dust and iron rust mixed in the fluid are filtered and fungi mixed in the fluid by the sterilizing member installed in the strainer are removed. Can be sterilized or sterilized.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a strainer having a sterilizing member of the present invention.

[Explanation of symbols]

 3 Inflow channel 4 Outflow channel 5 Cylindrical screen 12 Sterilizing filter

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI C02F 1/50 532 C02F 1/50 532B 540 540F 550 550B 560 560Z

Claims (1)

[Claims] 1. A method in which a fluid inflow path, a filtration member and a fluid outflow path are sequentially formed to filter foreign matter such as dust, rust and scale mixed in the fluid by the filtration member. A strainer having a sterilizing member, wherein a sterilizing member for sterilizing fungi mixed in the fluid is attached to at least one of the passage, the filtering member, and the outflow passage.