JPH06262009A - Filter device - Google Patents

Abstract

PURPOSE:To provide a filter device wherein the heating efficiency of a filter container is excellent and the cleaning of the connection part of the filter container and a changeover mechanism can be simply performed. CONSTITUTION:Openings 23 reaching filter containers 2, 2 from the outside are provided to a heating box 1 having filter containers 2, 2 and changeover valves 3, 3 received therein and, when the filter containers 2, 2 are replaced, the cleaning of the connection parts of the filter containers 2, 2 and the changeover valves 3, 3 can simply be performed by the wiping operation of the hand inserted in the heating box from the openings 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter device for clarifying a fluid in various plants and the like for removing dust and foreign matters in the fluid.

[0002]

2. Description of the Related Art A filter device is used in a plant or the like to remove dust and foreign matter in a fluid to clarify the fluid, but when the filter medium is clogged, the flow must be stopped and replaced. For this reason, a filter device has been devised which is provided with a plurality of filter containers and a switching device for the filter containers and which is capable of replacing a blocked filter medium while continuing the flow of fluid.

A filter device having a plurality of filter containers and a switching device does not need to stop the flow of fluid when exchanging the filter medium, not only increasing the operating rate of the plant but also performing various operations associated with stopping and starting the plant. It is widely used in industry because it is unnecessary.

The method of cleaning the filter container and regenerating the filter medium in the filter device capable of replacing the blocked filter medium while continuing the flow of fluid can be roughly classified into the following two methods.

Only the filter medium is exchanged while the filter container is fixed to the switching device, the filter medium is regenerated at another place, and the filter container and its surroundings are operated by using other filter containers. In the meantime, wash in the plant with a suitable solvent.

[0006] While the filter medium is still attached to the filter container, it is separated from the switching device and moved to another place for disassembly and cleaning.

In the method of (1), the filter container and its surroundings including the switching device are cleaned with a solvent, so that all parts can be cleaned, and the fluid will not be contaminated by the device even if the fluid is next passed. . However,
This method has the following drawbacks.

1) Danger of having to use a solvent, which is a dangerous substance, at the site where the filter device is installed.

2) The surrounding electric equipment must be explosion-proof, which leads to an increase in equipment cost.

3) A solvent inlet / outlet must be provided around the switching device, which complicates the structure of the switching device and is expensive.

The method of (1) is safe and simple because it is replaced while the filter medium is contained in the filter container. Moreover, it is possible to outsource the washing of the container, the apparatus does not require a large scale, the price is low, and the container is particularly popular.

[0012]

However, the above method has the drawback that the connection between the switching device and the filter container cannot be cleaned. Conventionally, after wiping this part with a cloth or connecting a filter container equipped with a filter material that has been washed and regenerated to the switching device, the next time the fluid is made to flow, the fluid is discharged for a while and then this part is washed out before starting normal operation. The method is called.

However, when used as a synthetic resin which solidifies when not heated, it is necessary to heat the entire device, and the heating element interferes with the part of the filter device that is always used and replaced. It is very difficult to clean the connection part of, and the method of flushing with fluid is also incomplete,
When the filter medium is switched, troubles frequently occur in the subsequent steps. For this reason, there are many cases where the use of this method is discouraged due to this problem, especially in the process of fine filtration in the micron unit such as yarn making and film forming.

SUMMARY OF THE INVENTION An object of the present invention is to improve the structure of a heating element and to provide a filter device which facilitates cleaning and cleaning of the above-mentioned connecting portion.

[0015]

In order to solve the above problems, the first invention comprises a plurality of filter containers equipped with a filter medium and a switching mechanism for switching and alternately using them. Are housed in a common heating box, and a part of this heating box is provided with an opening penetrating from the outside to the inner surface side.

The second aspect of the present invention is provided with a plurality of filter containers equipped with a filter medium and a switching mechanism for switching and alternately using them, which are housed in a common heating box, and the heating box can be freely opened and closed. It has a configuration that is set to.

[0017]

[Action]

When the filter container of the first invention is replaced, a hand is inserted through the opening provided in the heating box to clean and clean the connection part.

Second Invention When the filter container of the filter device is replaced, the heating box is opened to expose the connection portion, and the connection portion is washed and cleaned.

[0019]

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

In the first embodiment shown in FIGS. 1 to 4, the filter device has filter containers 2 and 2 detachably mounted on both sides of a rectangular parallelepiped heating box 1, and the filter containers 2 and 2 are installed in the heating box 1 at both sides. Switching valves 3 and 3 are provided at positions near both ends between the filter containers 2 and 2.

The filter container 2 has a square outer shape, and a filter medium 4 is detachably accommodated therein, and a fluid inlet 5 and an outlet 6 are provided at positions near both ends so that one side surface opens. There is.

In the switching valves 3 and 3, a valve body 7 formed in the shape of a rectangular block is provided with a fluid outflow port 8 and outflow ports 9 and 9 opening on both sides, and a valve body 10 housed therein is rotated. By operation, communication between both outflow ports 9 and 9 with respect to the outflow port 8 is switched.

Both switching valves 3 and 3 are connected to the shaft 1
1, the joints 12, 12, the valve bodies 10, 10 are interlocked via the worm and the worm wheel 13 and the like, and by rotating the handle 14 arranged outside the heating box 1, both valve bodies 10,
10 can be switched at the same time.

As shown in FIGS. 1 and 3, the filter vessels 2 and 2 arranged at fixed positions on both sides of the switching valves 3 and 3 have an inlet 5 on one side and an outlet 9 on the switching valve 3 side.
, The outlet 6 communicates with the outlet 9 of the other switching valve 3, and the fluid flowing in from the outlet 8 of the one switching valve 3 passes through the one filter container 2 as shown by the arrow in FIG. It flows out from the outflow port 8 of 3,
When the two valve bodies 10, 10 are switched, the fluid will pass through the other filter container 2.

The heating box 1 for accommodating the filter containers 2 and 2 and the switching valves 3 and 3 comprises a lower heating element 16 arranged on a base 15 and both end portions on the heating element 16 for the filter containers 2 and 2. The rectangular end heating body 17 standing upright on one end side, the rectangular end heating body 18 standing upright on the other end side, and the end heating bodies 17 located at both ends are located between the filter container 2 2 and the heating elements 19 and 19 overlapping the side surfaces, and the heating elements 19a and 19a overlapping the upper surfaces of the filter containers 2 and 2.
And covers the three surfaces of the filter containers 2 and 2 for heating.

A heating element 20 is arranged around the space surrounded by the switching valves 3 and 3 and the filter containers 2 and 2 to heat the switching valves 3 and 3 and the filter containers 2 and 2. There is. Due to the structure of the heating box 1, only the portions of the four circumferential surfaces of the filter containers 2 and 2 that are not in contact with the heating element are in contact with the switching valves 3 and 3, so that the heating efficiency is significantly improved.
By removing the upper heating elements 19a, 19a,
The filter containers 2 and 2 can be attached and detached from the upper part.

In the illustrated case, each heating element constituting the heating box 1 has a structure in which a heating plate 21 which is heated by energization is used and the outside is covered with a heat insulating material 22, but it is heated by another heat source. You may employ | adopt the structure which heats using the heat medium supplied.

In the heating box 1, side heating elements 19,
Openings 23 penetrating from the outer surface to the inner surface are provided at positions near both ends in the vertical portion of 19.

The connecting portion between the two filter containers 2 and 2 and the switching valves 3 and 3 is a connecting portion between the fluid inlet 5 and the outlet 6 and the outflow inlet 9 and 9, and the opening 23 faces the connecting portion. It is formed with a diameter that allows insertion of a human hand at the position.

The first embodiment of the filter device is constructed as described above, and in the state of FIG. 1 in which the filter containers 2 and 2 are horizontally fitted and set on both sides in the heating box 1, either one of them is set. The fluid is passing through the inside of the filter container 2, and both the filter containers 2 and 2 are heated.

On the other hand, when the filter medium 4 of the filter container 2 is clogged, the switching valves 3 and 3 are simultaneously switched by the handle 14 so that the fluid passes through the inside of the other filter container 2 and the one filter container 2 is heated. The filter medium 4 is pulled out from the inside of the box 1 and removed, and the filter medium 4 is washed at other portions.

Further, after the filter container 2 is pulled out, the fluid remaining in the switching valves 3 and 3 naturally flows out from the outflow / outlet port 9. Therefore, a hand is inserted into the opening 23 to switch the switching valves 3 and 3 together. A work such as wiping off the fluid adhering to the surface with a cloth may be performed.

Next, a second embodiment shown in FIGS. 5 and 6 will be described. The same parts as those in the first embodiment shown in FIGS. 1 to 4 are designated by the same reference numerals and will not be described.

In the second embodiment, the side heating elements 19 and 19 and the upper heating elements 19a and 19a in the heating box 1 are integrally formed into an L shape, and the lower portion thereof is attached to the lower heating element 16 by a hinge 24. The hinge 24 is used as a fulcrum to open and close.

The L-shaped heating elements 19, 19, 19a, 19
When the filter container 2 is in the closed position, it covers the side surfaces and the upper surfaces of the filter containers 2 as shown on the right side of FIG. 6, and when the filter container 2 is removed, it is rotated outward as shown on the left side of FIG. If the filter container 2 is moved to the open state, the connection portions of the switching valves 3 and 3 are exposed after the filter container 2 is removed, and the operation of wiping off the adhered fluid can be performed very easily.

Although not shown in any of the embodiments, the filter containers 2 and 2 and the switching valves 3 and 3 are not shown.
The connection part of is horizontal, and in order to maintain the airtightness of this connection part, a gasket is installed on the switching valves 3 and 3 side,
If the shape of this gasket is devised and a part or all of the inside of the connection part is used as a gasket and the gasket is replaced together with the filter container, cleaning of this part becomes unnecessary.

[0037]

As described above, according to the present invention, since the filter container and the switching mechanism are housed in the common heating box, the heating efficiency is improved, and the filter container and the switching mechanism are provided by the opening provided in the heating box. The connection part of can be cleaned smoothly.

Furthermore, since a part of the heating box can be opened and closed, the connection between the filter container and the switching mechanism can be smoothly cleaned from the outside.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view showing a first embodiment of a filter device according to the present invention.

FIG. 2 is a vertical sectional front view of the same.

[Fig. 3] Side view of the same section

FIG. 4 is an exploded perspective view of the above.

FIG. 5 is a perspective view showing the second embodiment.

FIG. 6 is a vertical side view of the above.

[Explanation of symbols]

 1 Heating Box 2 Filter Container 3 Switching Valve 4 Filter Material 5 Inlet 6 Outlet 19 Heating Body 23 Opening 24 Hinges

Claims (2)

[Claims] 1. A plurality of filter containers equipped with a filter medium and a switching mechanism for switching and alternately using them are housed in a common heating box, and a part of this heating box is exposed from the outside to the inner surface side. A filter device that has an opening that penetrates through. 2. A filter in which a plurality of filter containers equipped with a filter medium and a switching mechanism for switching and alternately using them are housed in a common heating box, and the heating box can be opened and closed. apparatus.