JP4556070B2 - Fluid filtration element - Google Patents

Description

The present invention water, oil, a fluid filtration apparatus of foreign substances contained in the fluid to filtration separation Chemicals.

  In the fluid filtering device, the filtering action of the fluid tends to be locally inhibited with respect to the filter tube due to the loading structure of the filter tube loaded in the device.

As the fluid filtering device described in the background art, those described below are known.
In JP-A 09-75612, as shown in FIG. 4, an inflow chamber C and a filtration chamber D are partitioned and formed through a partition wall B in a container A constituting a fluid filtration device, as shown in FIG. One end of the filtration chamber D is fixed to the partition wall B, and a support cylinder F having a large number of liquid passage holes E on the outer periphery where the one end communicates with the inflow chamber C. The filter tube G is fitted through a spacer I so as to have a fluid flow space H between both tubes F and G.

  The filtering action of the fluid filtering device is such that the fluid that flows in pressure into the inflow chamber C of the container A is guided to the filtration chamber D through the support cylinder F and enters the space H from the liquid passage hole E of the support cylinder F The fluid in the space H flows out from the inside of the filter tube G to the outside, and on the way, it is filtered and separated into, for example, water and oil, and each is taken out of the container A by ordinary means (not shown). is there.

In the fluid filtering device according to Patent Document 1, since the flow space H between the support tube F and the filter tube is partitioned vertically by the ring-shaped spacer I as shown in the figure, the fluid moves up and down with the spacer I as a boundary. There is a problem that the flow of fluid to the filter tube G is locally obstructed by this flow, and a uniform filtering action over the entire length of the filter tube G cannot be achieved.

  The present invention has been made in consideration of such problems, and an object of the present invention is to provide a fluid filtering device that does not divert fluid due to the presence of a spacer.

In order to solve the above-described problem, the fluid filtering device according to the present invention employs the configuration described in claim 1 of the claims .

That is, in claim 1,
The inside of the container constituting the filtration device is partitioned into an inflow chamber and a filtration chamber via a partition, and one end of the filtration chamber is fixed to the partition and communicated with the inflow chamber, and a large number of liquid passages are provided on the outer periphery. In a fluid filtration device in which a support cylinder provided with a hole is protruded to intervene, and a filter cylinder is fitted on the outer periphery of the support cylinder via a spacer so as to have a space for fluid flow between both cylinders.
Said spacers are arranged via a predetermined distance to the outer periphery of the support tube so that the fluid in the space communicates with the axial direction of the space, in a plurality of protrusions that are fitted and fixed to liquid passing hole of the support cylinder it is characterized in that the configuration was.

This configuration passes between projections fluid enters the space constituting the spacer, since the flow along the entire length of the flow space, diversion of the fluid in the inter-sky is blocked.

Further, in this configuration , the liquid passage hole drilled in the support cylinder can be used as it is as the attachment hole of the protrusion.

According to the fluid filtration device according to the present invention, the fluid flowing into the flow space, since the flow by passage through the projection constituting the spacer, diversion of the fluid in the fluidized space Ru is eliminated.
Moreover, the fluid can be caused to flow through the space over the entire length of the filter cylinder so as to pass through the entire area of the filter cylinder, and an effective filtering action without any filtration loss can be measured.
In addition , the protrusion can function as a guide when the filter tube is fitted and loaded onto the support tube .

Furthermore, since the liquid passage hole formed in the support cylinder may be used as it is as the attachment hole for the protrusion, there is an effect that it is not necessary to provide a special attachment structure.

  The best mode for carrying out the fluid filtering element according to the present invention will be described below with reference to the drawings.

1 and 2, reference numeral 1 denotes a vertical container constituting a fluid filtering device .
This container 1, the inflow chamber 3 of the fluid in the lower portion through the partition wall 2 is, filtration chamber 4 Ru are defined and formed on the top.
Wherein the filter chamber 4 communicates with the lower end in the inlet chamber 3 and the support cylinder 5 for濾筒inserted which is fixed the lower end to the cantilever shape to the partition wall 2 is projected intervention.

The support cylinder 5 has a lower end plate 6 fixed on the outer periphery of the lower side by welding, and an upper end plate 7 that can be attached and detached is provided at the upper end of the support cylinder 5. Both end surfaces of the filter tube 8 in a state where the plate is not attached are brought into contact with each other.
In this embodiment , the upper end plate 7 is fixed by screwing a bolt 10 into the support cylinder 5 at the center of the screw seat 9 in an upward projecting state, and loosely inserting a central hole 10 a provided in the upper end plate 7 into the bolt 10. The bolt is sealed with an O-ring 10b, and a tightening nut 11 is screwed into a bolt portion protruding above the central hole 10a.

  The support cylinder 5 is formed to be long enough to insert the entire length of the filter cylinder 8, and the support cylinder 5 is provided with a large number of liquid passage holes 5 a in the insertion length range of the filter cylinder 8. It has been.

A fluid flow space 16 is formed between the support tube 5 and the filter tube 8, and pin-like projections 15 constituting spacers are interposed in the flow space 16.

The projections 15 are fitted and fixed in liquid passage holes 5 a provided in the support cylinder 5, and are arranged at intervals of four at regular intervals in the axial direction of the support cylinder 5 and at an angle of 90 ° in the circumferential direction. Are arranged.

The loading operation of the container 1 of濾筒8, an upper cover removed of container 1, previously remove your Ku nut 11 and the upper end plate 7 which is provided on the support cylinder 5 from the bolt 10.
Then, in this detached state, the濾筒8 of the end plate unloaded state, the lower end surface of the support cylinder 5 of the upper open end result to be inserted from濾体8 naturally abuts the lower end plate 6.
In this contact state, the center hole 10a of the upper end plate 7 is inserted into the bolt 10 and the nut 11 is screwed into the bolt 10 and tightened so that both end faces of the filter tube 8 are crimped to the upper and lower end plates 6 and 7. Hold it and complete the loading.
When the filter tube 8 is replaced due to clogging or the like, the nut 11 and the upper end plate 7 are detached, the clogged filter tube is removed, and a new filter tube is replaced and loaded as described above.

The filter cylinder 8 shown in this embodiment is an example used for filtering a special fluid such as a petrochemical plant .
Therefore, the濾筒8, the band 12 metal punch plate made of inner and outer double cylinder 8a, the filter medium 8c made of glass wool was charged to the thick layer between 8b, the filter medium portion located in said濾筒8 both end portions of the outer periphery In this embodiment , the upper and lower end plates are formed in order to form a high-density portion 13 that is compressed by tightening and compressing, to form a high-density portion 13 that prevents fluid penetration. 6 and 7, an endless wedge section 14 is formed, and the wedge section 14 is bitten into the end face of the filter tube.

It is a partially cutaway front view of a fluid filtration apparatus. It is a partially notched front view which shows the loading state of a filter cylinder. It is a cross-sectional top view of a filter cylinder part. It is a partially cutaway front view of the conventional filter body loading state.

DESCRIPTION OF SYMBOLS 1 Container 2 Partition 3 Inflow chamber 4 Filtration chamber 5 Support cylinder 6 Lower end plate 7 Upper end plate 8 Filter cylinder 15 Protrusion (spacer)
16 Fluid space

Claims (1)

The inside of the container constituting the filtration device is partitioned into an inflow chamber and a filtration chamber via a partition, and one end of the filtration chamber is fixed to the partition and communicated with the inflow chamber, and a large number of liquid passages are provided on the outer periphery. In a fluid filtration device in which a support cylinder provided with a hole is protruded to intervene, and a filter cylinder is fitted on the outer periphery of the support cylinder via a spacer so as to have a space for fluid flow between both cylinders.
Said spacers are arranged via a predetermined distance to the outer periphery of the support tube so that the fluid in the space communicates with the axial direction of the space, in a plurality of protrusions that are fitted and fixed to liquid passing hole of the support cylinder A fluid filtration device characterized by comprising.

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