JPH0628686B2 - Filtration device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a filtering device that can filter oil or other fluids and can be used in other industrial fields such as marine vessels. The present invention relates to a filtration device that can be replaced or regenerated.

<Prior Art> A filter capable of maintaining the filter without interruption of fluid supply is called a switching type or a double type, and has been conventionally used as a so-called strainer in a diesel engine, an oil supply device and the like. And this conventional double strainer
In most cases, two filter devices each containing a filter were used and these were switched by the flow path switching means.

In FIG. 4, the two filtering devices 1 and 2 are switched by the switching means by the cock 3, and one of the filtering devices is used.
An example of a conventional filtering device in which the other is put into a dormant state for maintenance is shown.

Further, FIG. 5 shows that the two filtering devices 1 and 2 are connected to the cylinder valve 4
An example of a conventional filter device in which one of the filter devices is used for switching, and the other filter is used for maintenance while the other filter is switched to the sleep state will be described.

Further, FIG. 6 shows an example of a conventional filter device in which two filter devices 1 and 2 are opened and closed by four valves (cocks) 5.

<Problems to be Solved by the Invention> However, in the above-described cock-type compound filtration device, since the cock portion is a cast product such as cast iron, cast steel or gun metal, there are the following problems.

． The positions such as the height and the direction of the piping port for the inflow and outflow of the fluid to be filtered are determined by the wooden pattern (model), and cannot be easily changed as necessary. Further, in the case of the two-circuit cock as shown in FIG. 4, since the piping ports must be adjacent to each other, even if the wooden pattern is changed, the degree of freedom that can be dealt with is poor.

． The sealing surface of the cock requires lapping after lapping, which requires skilled skill and time. Moreover, if the surface pressure is increased in order to increase the sealing degree of the cock, a great amount of force is required to turn the cock. There is a problem that it mixes in.

． Further, the flow path in the casting is usually curved, and it takes a considerable number of man-hours to remove the casting sand in that portion and smooth the surface. Further, casting defects such as porosity are likely to occur.
Furthermore, for example, when paying particular attention to disaster prevention, cast steel or the like is used instead of cast iron, but it may not be possible to share the same wooden mold due to the difference in shrinkage rate due to the material change.

． Further, in the cock system, it is necessary to position the cock separately from the two filtration devices and occupy a considerable space, which causes a problem of bulkiness. This is a big problem especially in ships where compactness is required.

． Of course, in the cock system shown in FIG. 4, only one of the filtration devices is normally operated, and the other one is in a dormant state, which is bulky and inefficient.

In addition, in the above-mentioned cylinder valve type dual filter device,
There were the following problems.

． Since the opening and closing of the valves on the inflow side and the outflow side need to be performed in synchronization, both cylinders also need to be adjacent to each other, and therefore the degree of freedom of the piping port height and direction in the filtering device is poor.

． It is necessary to provide a separate space for the cylinder valve 4 separately from the two filtration devices 1, 2, and the stroke of the valve rod to be advanced and retracted becomes large, resulting in a wide installation space.

． The manufacturing cost is higher than the cook method.

Further, the above-mentioned four-valve-use type double-pass filter has the following problems.

． It is necessary to open and close the four valves individually, which lacks operability.

． As the pipe diameter increases, the four valves increase in weight and proportion of the occupied space to the whole, and become bulky.

． The manufacturing cost is higher than the cook method.

Therefore, an object of the present invention is to solve the above-mentioned drawbacks of the conventional device, to provide a filter device which is extremely compact, has high filtration efficiency, has a large degree of freedom of piping and the like, and has a low manufacturing cost.

<Means for Solving the Problems> In order to achieve the above object, in the filtration device of the present invention, the inside is partitioned into upper and lower chambers by a partition plate, and one of the chambers has an inlet for the fluid to be filtered, A cylindrical outer container with a lid provided with an outlet for filtered fluid in the chamber, a plurality of inner cylinders arranged in the cylindrical outer container so as to penetrate the partition plate, and in each inner cylinder And a filter disposed in the inner chamber, the fluid to be filtered introduced into the one chamber is filtered through the filter in the inner cylinder, and is guided to the other chamber. And an isolation means for connecting the inner cylinder to a filter outlet provided on the lid of the cylindrical outer container and for separating the connected inner cylinder inner space from the inner space of the cylindrical outer container. The first feature is that it is performed.

In addition to the first feature, the filtering device of the present invention is characterized in that the separating means is a moving means for aligning the inner cylinder having the filter to be taken out with the filter outlet of the lid, and a position. The second characteristic is that the lower opening of the combined inner cylinder is hermetically sealed and the upper opening is airtightly connected to the filter outlet.

<Operation> According to the first feature of the present invention, when there is a filter that requires maintenance regeneration or replacement among a plurality of filters during the filtering operation, the filter that is the target is included in the filter. The inner cylinder is connected to the filter outlet of the lid by the separating means, and the inner cylinder inner space is separated from the inner space of the cylindrical outer container.
As a result, the flow of the fluid to be filtered between the space where the filtration is continuously performed and the space inside the inner cylinder is blocked, and the filter inside the inner cylinder can be taken out from the filter outlet.
Moreover, in the space inside the cylindrical outer container, the filtration is continued by the remaining filter. The regenerated or replaced filter is housed in the original inner cylinder from the filter outlet, the filter outlet is closed, and the separator is connected to the filter outlet and isolated from the inner space of the tubular container. If is solved, the filtration by the filter is restarted.

Since a plurality of filters and an inner cylinder having the filters therein are provided in one cylindrical outer container to perform multiple types of filtration, the apparatus becomes very compact. Moreover, double filtration can be performed without the need for a separate flow path switching means as in the prior art. In addition, the installation position of the inlet and outlet of the fluid to be filtered with respect to the cylindrical outer container is not particularly limited to the outside 360 degrees, and the inlet and the outlet can be provided at free positions according to the space condition around the device. it can.

Further, according to the second aspect of the present invention, one filter is formed by aligning the inner cylinder and the filter outlet with the moving means and air-tightly connecting the inner cylinder with the filter outlet with the connecting means. A plurality of filters can be freely taken out by using the device outlet.

<Embodiment> FIG. 1 is a longitudinal sectional view of an embodying device of the present invention, FIG. 2 is a plan view of the embodying device, showing a state in which a lid is partially removed, and FIG. FIG.

A plurality of (three in the embodiment) inner cylinders 20 are provided in the cylindrical outer container 10, and a filter 30 is arranged in each inner cylinder 20. A lid 40 is provided on the upper opening of the cylindrical outer container 10.

The inner space of the cylindrical outer container 10 has an upper and lower chambers R ₁ by 50,
It is partitioned into R ₂ and has an inlet 11 for the fluid to be filtered into the upper chamber R _1.
However, an outlet 12 for the filtered fluid is provided in the lower chamber R ₂ .

The partition plate 50 is airtightly engaged in close contact with a seat 13 provided on the center of the inner wall of the tubular outer container 10 over the entire circumference, and the central rotary shaft is pressed by the vertical key 51. It is designed to rotate with 60 rotations.

The inner cylinder 20 is opened in the vertical direction, and penetrates the partition plate 50, and is airtightly engaged with the opening of the partition plate 50 at the engaging portion 21 on the outer side of the inner cylinder. The inner cylinder 20 can be independently moved upward with respect to the partition plate 50 from the state shown in FIG.

The filter 30 is detachably attached and arranged in the inner cylinder 20, and the fluid to be filtered, which has entered from the upper opening 22 of the inner cylinder 20, always passes through the filtering portion of the filter 30 and the lower opening 23 of the inner cylinder 20. To be guided to. In the embodiment, the filter part is composed of the wire mesh body 31 and the punching metal 32 for reinforcing the wire mesh body, but the invention is not limited to this, and one using a porous sintered body and one using a filter cloth. It is possible to use various materials such as those using filtration particles, provided that the filtration device 30 as a whole can be taken out from the inner cylinder 20.

During the filtration operation, the fluid to be filtered that has been sent enters the upper chamber R ₁ of the cylindrical outer container 10 through the inlet 11, and further the upper opening 2 of the inner cylinder 20.
2 enters the inner cylinder 20 and passes through the filter section (wire mesh 31 and punching metal 32 in the embodiment) of the filter 30 and is filtered by this, and the filtered fluid flows from the lower opening 23 of the inner cylinder 20 to the lower chamber R.
₂₎ , and exit 12 to the outside. In this case, the fluid to be filtered entering from the inlet is prevented from being directly guided to the filter 30 by the inner cylinder 20, and the filtered fluid that has exited the filter 30 is also directly discharged to the inner cylinder 20.
Prevented from being led to 12. That is, the inner cylinder 20 prevents unevenness in the amount of filtration passing through the portion of the filter 30 and improves the filtering action. As the fluid to be filtered, oil or other fluid is targeted, and the type of fluid is not particularly limited. Further, the inlet 11 and the outlet 12 may be reversed. That be filtered fluid enters the lower chamber R ₂ of the cylindrical outer container 10, filtered while guided to the upper chamber R ₁ is made, filtered Zumi fluid from the upper chamber R ₁ may also be outgoing outside . The inlet 11 and the outlet 12 may be communicated with the corresponding chambers R ₁ and R ₂ , respectively, and can be provided at least on the outer side of the tubular outer container 10 with a degree of freedom of 360 degrees.

The rotating shaft 60 has an upper portion that penetrates the lid 40 of the tubular outer container 10 and projects upward, and a base portion of the lever 70 via a key 72.
Is bound to 71. Therefore, when the lever 70 is rotated, the rotary shaft 60 is also rotated together with it, whereby each inner cylinder 20 having the filter 30 is rotated around the rotary shaft 60 together with the partition plate 50.

Further, the base 81 of the handle 80 is inserted near the upper end of the rotary shaft 60 protruding from the cylindrical outer container 10, and is prevented from coming off by a nut 82. The base 81 of the handle 80 is the lever 70
It is screwed to the base portion 71 of the above and can freely rotate with the rotation shaft 60. Therefore, when the handle 80 is rotated and its base 81 is moved upward with respect to the base 71 of the fixed lever 70, the rotating shaft 60 rises together with the base 81 without rotating. The lever 70 is fixed by fixing the lever 70 to the screw receiving portion 92 with a screw 91. Further, when the rotary shaft 60 is raised, the key 71 relatively moves within the vertical key groove 61 formed in the rotary shaft 60. The partition plate 50 and the rotary shaft 60 are also moved relative to each other by the vertical key 51.

A filter outlet 41 is provided at one location on the lid 40. The filter outlet 41 is provided with a closing lid 43 having an air vent valve 42 (air vent plug) on its upper surface. An airtight connection port 101 with the upper opening 22 of the inner cylinder 20 is provided on the lower surface side of the filter outlet 41. Further, the filter outlet 4
A pressure equalizing communication pipe (not shown) communicates with the upper chamber R ₁ from the inner wall of ₁ . 44a and 44b are communication ports of uniform communication pipes. An on-off valve is provided on this uniform communication pipe.

An airtight lower lid 102 for closing the lower opening 23 of the inner cylinder 20 in an airtight manner is provided immediately below the filter outlet 41 and the airtight connection port 101 so as to face them. This airtight lower lid 102 has its axis
103 is connected to the rotating shaft 60 by a connecting plate 104, and moves up and down as the rotating shaft 60 moves up and down. The connecting plate 104 is a rotary shaft 60.
Is free to rotate. Reference numeral 105 is a bearing of the airtight lower lid 102, and 62 is a bearing of the rotating shaft 60. 63 is the rotating shaft 60
It is a fixed inner cylinder forced lowering ring.

Now, for example, when the filtering operation is performed using all the filters 30 in the three inner cylinders 20, the three inner cylinders 20
Is arranged at a position displaced from the filter outlet 41, as shown in FIG. Then, during the filtering operation, when the filter 30 in one inner cylinder 20 is taken out for replacement or regeneration,
First, the lever 70 is rotated to move the inner cylinder 20 to the filter outlet 41.
Move it to just below. The movement is performed by the rotation of the lever 70, whereby the rotary shaft 60 rotates via the lever base 71, which causes the partition plate 50 to rotate and the inner cylinder 20 to rotate together. Where the inner cylinder 20 comes directly below the filter outlet 41,
The lever 70 is fixed to the screw receiving portion 92 with the screw 91. Actually, by rotating the lever 70 to the position of the receiving portion 92, the inner cylinder 20 comes directly under the filter outlet 41. Therefore, the screw receiving portions 92 are provided at three places on the lid 40 at rotation intervals of 120 degrees.

When the fixing of the lever 70 with the screw 91 is completed, the handle 8 is then rotated to raise the rotating shaft 60. At this time, open the closing valve of equalizing pressure communication pipe, previously let through communication opening 44a and the upper chamber communication port 44b of the R ₁ of the filter outlet 41. As the rotary shaft 60 rises, the airtight lower lid 102 also rises together and seals the lower opening 23 of the inner cylinder 20. Then, it further rises and the upper opening 22 of the inner cylinder 20 is fitted into the airtight connection port 101 to complete the connection. After the connection is completed, the open / close valve of the pressure equalizing communication pipe is closed. After the connection is completed, the inner space of the inner cylinder 20 becomes a cylindrical outer container.
It is separated from the inner space of 10, and the filter 30 can be taken out. After gradually opening the air vent valve 42, the closing lid 43 is removed and the internal filter 30 is taken out. During this time, the cylindrical outer container
Filtration is continuously performed by the remaining filter 30 within 10.

When the removed filter 30 can be regenerated or replaced,
The filter 30 is again put into the inner cylinder 20 through the outlet 41, and the closing lid 43
Is closed, the air vent valve 42 is opened slightly, the pressure equalizing communication pipe is opened, the fluid to be filtered is introduced from the upper chamber R _1, and the air inside is withdrawn from the air vent valve 42. When that ends,
The air vent valve 42 is closed and the handle 80 is turned to lower the inner cylinder 20. At this time, the inner cylinder 20 is rotated by the inner cylinder forced lowering ring 63 of the rotary shaft 60.
Ensure the descent of. When the descent is completed, the lever 70 is released from the fixed state, and the lever 70 is rotated to return the inner cylinder 20 to the original state shown in FIG. This completes a series of maintenance work for the filter 30.

In the above, the lever 70 and the rotating shaft 60 constitute a moving means for moving the inner cylinder 20 to a position directly below the filter outlet 41. Of course, in the present invention, as long as it is a moving means capable of moving the inner cylinder 20 of the filter to be taken out to a position directly below the filter outlet 41, the specific means is a combination of the lever 70 and the rotary shaft 60. It is not limited to the combination. Further, in the embodiment, the inner cylinder 20 is moved to the filter outlet 41 side for alignment, but conversely, the filter outlet 41 is moved.
A moving means for moving the side to the inner cylinder 20 side for alignment may be provided. That is, the moving means may be one that moves on the inner cylinder 20 side or one that moves on the filter outlet 41 side. It is not limited.

On the other hand, in the above, the handle 80, the rotating shaft 60, the airtight lower lid
102, the airtight connection port 101 seals the lower opening 23 of the aligned inner cylinder 20 and the upper opening 22 of the filter outlet 41.
Will constitute a connecting means for making an airtight connection to the. In the embodiment, the handle 80 is turned and the rotary shaft 60 is moved upward to move the airtight lower lid 102 upward, but the specific means for moving the airtight lower lid 102 is not particularly limited, and for example, hydraulic pressure may be used. The airtight lower lid 102 may be moved upward by using a means. Further, the connecting means may be such that both the airtight lower lid 102 and the airtight connection port 101 are moved from above and below to be connected to the inner cylinder 20. That is, as the connecting means, any means can be used as long as the upper opening 22 of the inner cylinder 20 can be airtightly connected to the filter outlet 41 and the bottom opening 23 can be hermetically closed, and the specific means is not limited.

Further, in this embodiment, the moving means for aligning the inner cylinder 20 and the filter outlet 41, and the further aligned inner cylinder and the filter outlet 41 are hermetically connected and the inner cylinder lower opening 23
With the connecting means for sealing the
The inner cylinder 20 having the inside 30 constitutes an isolation means that can be connected to the filter outlet 41 in a state where the inner space is isolated from the inner space of the cylindrical outer container 10. This isolation means is, in short, a means that can connect the inner cylinder 20 in the filtration operation state to the filter outlet 41 and can separate the inner space of the inner cylinder 20 from the inner space of the tubular outer container 10. The specific means is not particularly limited, and may be other than the combination of the moving means and the connecting means. For example, corresponding to each position of each inner cylinder 20 arranged,
Multiple filter outlets 41, airtight connection port 101, airtight lower lid 102
Is provided, and the inner cylinders 20 are arranged at their arranged positions without any moving means for positioning.
May be airtightly connected.

<Effect> The present invention has the above-described configuration, and according to the filtration device of claim 1, maintenance and replacement of the filter are performed using one tubular outer container and without interrupting the filtration operation. Therefore, it is possible to provide a dual type filtering device which is very compact and requires a small installation space.

Moreover, the flow passage switching means such as the cock, the cylinder, the valve, etc., which are conventionally required, are not required, and the occupied space required for those flow passage switching means can be eliminated and the high cost required for the flow passage switching means can be achieved. .

In addition, there are almost no positional restrictions on the inlet and outlet of the fluid to be filtered, which can greatly increase the degree of freedom in design changes due to the size and layout of the device, and to achieve sufficient space saving and cost reduction. You can

Further, in the present invention, since the filter can perform the filtering action without resting, except during the removal and maintenance, the filtering can be performed very efficiently.

Further, according to the filtering device of the second aspect, since the separating means is composed of the moving means and the connecting means, it is possible to efficiently take out the plurality of filters with one filter outlet.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an apparatus for embodying the present invention, FIG. 2 is a plan view of the apparatus for embodying the present invention, showing a state in which a lid is partially removed, and FIG. 3 is a plan view for explaining the arrangement relationship of inner cylinders, 4 to 6 are schematic configuration diagrams of conventional filtering devices. 10: Cylindrical outer container 11: Filtered fluid inlet 12: Filtered fluid outlet 20: Inner cylinder 30: Filter 40: Lid 41: Filter outlet 50: Partition plate 60: Rotating shaft 70: Lever 80: handle

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B01D 35/12 6953-4D

Claims (2)

[Claims] 1. A cylindrical outer container with a lid, the interior of which is partitioned into upper and lower chambers by a partition plate, and one of which has an inlet for a fluid to be filtered and the other chamber having an outlet for a filtered fluid. Having a plurality of inner cylinders arranged in the cylindrical outer container so as to penetrate the partition plate and a filter arranged in each of the inner cylinders, and introduced into the one chamber A filtration device in which a fluid to be filtered is filtered through a filter in the inner cylinder and guided to the other chamber, and the inner cylinder is provided in a lid of the cylindrical outer container. A filtering device which is provided with an isolation means for connecting with the outlet and for isolating the connected inner cylinder inner space from the inner space of the cylindrical outer container. 2. The separating means seals the moving means for aligning the inner cylinder having the filter to be taken out with the filter outlet of the lid and the lower opening of the aligned inner cylinder. The filtering device according to claim 1, further comprising a connecting means for airtightly connecting the upper opening to the filter outlet.