JP2542546Y2 - Double structure filtration 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 double-layered filtering apparatus using a disposable unit container in which a filtering material is housed in a container.

[0002]

2. Description of the Related Art For filtering liquids such as magnetic paints and inks,
In general, a container containing a cylindrical cartridge filter is connected to the piping of the liquid to be purified, and the liquid is passed from the outside to the inside of the filter to capture and purify impurities and agglomerates of particles. Has been done.

[0003] When the cartridge filter catches a certain amount of contaminants and the tissue becomes clogged, that is, the tissue is blocked, it is necessary to temporarily stop the flow and replace the internal filter with a new one. Liquids to be filtered often contain harmful solvents that are volatile, dangerous or toxic,
Therefore, the replacement of the filter involves a significant risk, and it is necessary to pay particular attention to the leakage of the liquid.

In order to solve such a problem, Japanese Utility Model Laid-Open No.
Japanese Patent No. 37690 discloses a filter device in which the entire filter container is disposable and replaced, but this filter device disposes of an expensive pressure-resistant container having a structural strength, and wastes resources. However, there is an economic problem. Also, in Japanese Utility Model Laid-Open No. 1-163514,
It is disclosed that the filter is wrapped in a film to avoid troublesome cleaning of the inner surface of the container during filter replacement work, and that the filter is discarded together with the film after use. The above concerns remain.

[0005]

[Problems to be Solved by the Invention] The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent liquid leakage at the time of filter replacement without discarding expensive pressure-resistant containers. It is an object of the present invention to provide a double-structured filtration device which can be replaced safely, cleanly and quickly.

[0006]

According to the present invention, there is provided a dual-structure filter device comprising a pressure-resistant container and a disposable unit container housed in the pressure-resistant container. An inlet pipe for a liquid to be filtered is provided on one end face, a discharge pipe for the filtered liquid is provided on the other end face, and a notch groove is formed at an end of the inlet pipe and the discharge pipe. At one end, an inlet for fitting the inlet tube, a closing valve for closing the inlet, and an end cap on which the closing valve is seated, At the end, a discharge port capable of fitting the discharge pipe, a close valve capable of closing the discharge port, and an end cap on which the close valve is seated are provided, and the close valve is a disc-shaped valve body. And attached at a fixed angle around the valve body A plurality of valve legs slid along a valve leg guide attached to the end cap and directed to return to the original angle by rebound resilience to close the inlet or the outlet, and are biased; The unit container is housed in the pressure-resistant container, the introduction pipe is fitted to the introduction port, and the discharge pipe is fitted to the discharge port, whereby a flow path is opened, and the unit container is connected to the pressure-resistant container. And the inlet and the outlet are closed at the same time as they are removed from the housing.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing an embodiment of the double structure filtration device of the present invention, FIG. 2 is an explanatory view of the assembly of the double structure filtration device of FIG. 1, and FIG. 3 is the double structure filtration device of the present invention. It is a perspective view showing appearance of one example of a device. The arrow in FIG. 1 indicates the direction in which the liquid moves.

A metal pressure-resistant container having a pressure-resistant and durable structure is divided into a pressure-resistant container body 1 and a cap member 2, both of which are integrated by a coupling means such as a flange 5 and a bolt, nut or clamp. . The pressure-resistant container main body 1 is provided with an introduction pipe 3 directly connected to the line in such a shape that its tip projects into the pressure-resistant container. The cap member 2 is provided with a discharge pipe in a shape such that its tip projects into the pressure-resistant container.

The unit container 10 incorporates a cartridge filter 11 having a cylindrical shape, and has a cylindrical member 2 at one end.
The other end of the inlet 12 formed in 2 has a discharge port 13 formed of a cylindrical member 23, and is provided with shut-off valves 14 and 15 for closing the respective ports when the container is not set. The closing valve 14 is seated on the introduction-side end cap 16, and the closing valve 15 is seated on the discharge-side end cap 17. The introduction-side end cap 16 includes a plurality of support legs 18.
A cylindrical cartridge stopper 19 fixed on the upper surface of the cartridge filter 11 is fitted in the inner hole of the cartridge filter 11 to support the lower end of the cartridge filter 11 and to close the inner hole of the cartridge filter 11. I'm blocking. The discharge-side end cap 17 is provided with a cylindrical cartridge stopper 20 that fits into the inner hole of the cartridge filter 11 and supports the upper end of the cartridge filter 11.

FIG. 4 shows the shut-off valve 14 used in the above embodiment.
It is an external appearance perspective view explaining the external appearance of No. 15. The shutoff valves 14 and 15 include a disc-shaped valve body 31 and a plurality (four in this embodiment) of valve legs 32 attached at a fixed angle around the valve body 31. Cap 16,
The valve body 31 slides along each valve leg guide 33 attached to the valve 17 and the valve body 31 is directed and urged to close the inlet 12 or the outlet 13. When the valve body 31 is pressed, the valve leg 32 slides outward along the valve leg guide 33, and returns to the original position when the valve body 31 is released from the pressing, and the valve body 31 is cylindrical. The inlet 12 or the outlet 13 is closed by contacting the member 22 or 23. The shape of the valve leg guide is not particularly limited as long as it fixes the position of the valve body, prevents lateral displacement and distortion, and can smoothly slide the valve leg. A groove may be formed in the groove.

FIG. 5 is an external perspective view showing one embodiment of the shapes of the end portions of the introduction pipe 3 and the discharge pipe 4. As shown in FIG. A plurality (four in this embodiment) of notch grooves 6 and 7 are formed at the tip of the tube. The shape of the cutout groove is not particularly limited, and examples thereof include a rectangular shape, a semicircular shape, and a horseshoe shape.

The material of the unit container is not particularly limited as long as it has a certain level of strength. However, since the unit container is disposable and easy to mold, for example, polyester resin, polyethylene resin, polypropylene resin And synthetic resins such as polycarbonate resin.

[0014]

FIG. 6 is a mechanism diagram showing the mounting relationship between the introduction tube 3 and the unit container when the unit container 10 is set in the pressure-resistant container 1. The introduction pipe 3 abuts on the closing valve 14 and its tip pushes down the valve body 31, so that the introduction pipe 3 and the outer portion of the cartridge filter 11 of the unit container 10 are opened via the cutout groove 6. The liquid to be filtered sent to the introduction pipe 3 flows into the unit container through the notch 6. The movement of the liquid in the vicinity of the discharge port 13 is just the reverse.
Is opened through the cutout groove 7.
The filtered liquid passes through the inner hole of the cartridge filter 11, between the valve legs 32, and further passes through the cutout groove 7 formed at the distal end of the discharge pipe 4, and is guided to the discharge pipe 4.

Although the internal pressure of the unit container 10 increases with the filtration by the cartridge filter 11,
Since the unit container 10 is inscribed in the pressure-resistant container 1, expansion, deformation, and the like of the unit container itself due to an increase in pressure can be suppressed, and damage or the like can be prevented from occurring.

When the unit container 10 is removed from the pressure-resistant container 1, the shut-off valves 14 and 15 are not pressed by the introduction pipe 3 or the discharge pipe 4, so that the shut-off valves 14 and 15 return to their original positions, respectively. The inlet 12 and the outlet 13 are closed and closed. For this reason, the liquid in the unit container cannot leak out of the container, and is sealed in the container.

[0017]

[Effects of the Invention] As described above, in the dual structure filtration device of the present invention, since the disposable unit container includes the filtration channel and the inner surface of the pressure-resistant container does not come into contact with the liquid, the replacement operation is performed. It is not necessary to wash it sometimes, so that labor and time are extremely reduced, and the worker can work without worrying about bad smell, thereby solving problems in the working environment.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a dual structure filtration device of the present invention.

FIG. 2 is an explanatory view of one assembly of the dual structure filtration device of FIG. 1;

FIG. 3 is a perspective view showing an external appearance of an embodiment of the dual structure filtration device of the present invention.

FIG. 4 is an external perspective view illustrating an embodiment of the closing valve according to the present invention.

FIG. 5 is an external perspective view showing one embodiment of the shapes of the distal end portions of the introduction pipe and the discharge pipe according to the present invention.

FIG. 6 is a mechanism diagram showing a mounting relationship between the introduction pipe and the unit container in a use state of the embodiment of the dual structure filtration device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pressure-resistant container main body 2 Cap member 3 Introductory tube 4 Discharge tube 5 Flange 6,7 Notch groove 10 Unit container 11 Cartridge filter 12 Inlet 13 Exhaust 14,14 Closing valve 16 Introductory end cap 17 Discharge end cap 18 Support Legs 19, 20 Cartridge stopper 21 Ring guide 22, 23 Cylindrical member 24 O-ring 31 Valve body 32 Valve leg 33 Valve leg guide

Claims (1)

(57) [Scope of request for utility model registration] 1. A double-structure filter container comprising a pressure-resistant container and a disposable unit container housed in the pressure-resistant container, wherein the pressure-resistant container has an inlet pipe for a liquid to be filtered on one end face, and the other end. A discharge pipe for filtered liquid is provided on an end face of the filter, a cutout groove is formed at an end of the introduction pipe and the discharge pipe, and the unit container has a built-in cartridge filter and has one end at one end. An introduction port into which the introduction pipe can be fitted, a closing valve capable of closing the introduction port, and an end cap on which the closure valve is seated are disposed, and the other end is provided with a discharge port capable of fitting the discharge pipe. A closing valve capable of closing the outlet and the discharge port, and an end cap on which the closing valve is seated, wherein the closing valve is mounted at a fixed angle around a disc-shaped valve body and the valve body, and the end cap To the valve leg guide attached to And a plurality of valve legs directed and urged to return to the original angle by rebound resilience and close the inlet or the outlet, and store the unit container in the pressure-resistant container. The flow path is opened by fitting the introduction pipe to the introduction port and fitting the discharge pipe to the discharge port, and simultaneously removing the unit container from the pressure-resistant container, the introduction port and the discharge port. Wherein the filter is closed.