JPS607914A - Filtration apparatus - Google Patents

Abstract

PURPOSE:To obtain a fine mesh filter capable of having at least 5-10mu mesh by constituting a filter element in a hermetic vessel of a network filter having a duplex structure of an internal and an external network which are movable relatively to each other. CONSTITUTION:The network filters 5 and 6 having ordinary 30-40mu mesh are capable of forming 5-10mu mesh as the effective value by placing the element 5 upon the element 6. The solid foreign matter in a fluid is collected and removed by the elements 5 and 6. Since the solid foreign matter flowing in stationarily is deposited on the elements 5 and 6, an internal vessel 1b is slid at every constant interval of time to move relatively the elements 5 and 6. In this way, a single network filter is formed, and then backwashed. After finishing the backwashing, the internal vessel 1b is contracted again, and the filtration is carried out again.

Description

[Detailed description of the invention] The present invention relates to a filter installed in a piping system.

The filtration machine of this scale consists of a container installed in the piping system and a filter element that traps solid foreign matter, but conventional filter elements are disposable and replaceable ones made of fiber. There is also a reusable reusable removable type made of wire mesh, wire, etc., but the former allows for meshes of 6 to 5 μm, but replacement work and fiber management costs increase due to element wear and tear.
In the case of the latter, it is currently possible to obtain only meshes of 60 to 50 μm.

In piping systems where the quality of marine fuel oil continues to deteriorate, a filter element with a mesh size of at least 5 to 10 microns is required to remove the residue of the fractionating catalyst mixed therein.

Therefore, the present invention was proposed for the purpose of providing an ultra-fine mesh filter that allows for a small mesh (at least 5 to 10 μm) using a formable filter element that allows for easy fiber management. The present invention relates to a filter consisting of a sealed container installed and a filter element inside the container, wherein the filter element is composed of a relatively movable dual mesh filter, inside and outside. .

The present invention will be explained below with reference to the illustrated embodiments. (1)
indicates a sealed container, and the same container (1) has an outer container (1α) and an outer container (1α) with a fluid outlet (2) and a fluid outlet (3) opened at the bottom so as to be installed in a piping system. ), as shown in Figure 6, consists of an inner container (1h) that is slidably inserted through a seal ring (4), and the outer container (1α) is supplied with fluid from the inlet (2). A cylindrical mesh filter (5) is provided to form a fluid passage, and the mesh filter (5) is provided in the inner container (1b).
) is provided with a cylindrical mesh filter (6) that is installed inside the mesh filter (5) with a small gap, and in the state shown in the first figure in which the outer container (1α) and the inner container (1k) are overlapped, the mesh filter (5) ( Reference numeral 61 forms a double mesh filter, inside and outside, and in the state shown in the second figure in which the inner container (1h) slides upward, the mesh filters (5) and (6) move relative to each other to form a single mesh filter. The mesh filters (5) and (6) are supported by support rods (71 (81) provided on the outer container (1α) and the inner container (1b), respectively, as shown in FIG. filter(
5) is supported on the inside of the support rod (7), and the sacral mesh filter (6) is supported on the outside of the support rod (8) so that the gap between them is reduced, and each mesh filter (6) is supported on the outside of the support rod (8). The filters (5) (61) are installed so that their fine meshes are slanted and face each other to reduce the probability that the meshes will match and result in a positive result.

Next, the operation of this embodiment will be explained. Normally, as shown in FIG. The flow J1 enters from the inside of the element (6), passes through both elements (61 (5), and flows out to the outside of the element (5). At this time, each element (5) and (6) are made of ordinary 60 to 40μ mesh. Even if there is, by superimposing that element (51 (6)), the effective value will be 5 ~
Solid foreign matter in the fluid is captured by each element (5) and (6) and removed by forming a 10μ mesh.

The solid foreign matter that steadily flows into the element (5) (
6), the inner container (16) is slid at regular intervals as shown in Figure 2.
) by forming a single-mesh filter and flowing the fluid in the opposite direction to the normal flow for backwashing, the solid foreign matter deposited on the element (51 (61) is
As each coarse mesh filter is backwashed, it is easily peeled off and deposited at the bottom of the fluid inlet chamber. After the backwashing is completed, the square inner container (1b) is contracted as shown in FIG. 1 to perform filtration again. In addition, the inner container (
The expansion and contraction in step 1h) is performed mechanically using an external air cylinder or the like, or by using the pressure of a backflow fluid.

5 and 6 show other embodiments of the present invention,
In this case, the closed container (1) includes an upper container (1C) that opens the fluid inlet (2) and a lower container (1C) that opens the fluid outlet (3).
1d) through a partition wall (1C), and the isolation (1C)
A cylindrical mesh filter (5) is fixed to the communication hole opening in e), and a mesh filter (6) is slidably inserted into the mesh filter (5), as shown in FIG. In addition, as shown in Figure 5, both mesh filters (5061) are flowed through in a double-sided state, and the accumulated solids are backwashed by moving between the two mesh filters (5) (61) as shown in Figure 5. Peel off foreign matter.

In this way, according to the present invention, the filter element in the sealed container is formed with a relatively movable double mesh filter, inside and outside, so even if the mesh filter is made of coarse mesh, the effective value can be reduced due to the polymerization. The ultra-fine mesh can be used to enhance the lachrymal drainage effect, and the internal and external double mesh filter can be made into a single filter by relative movement, so backwashing can enhance the backwashing effect and can be repeatedly regenerated. This has the following effects.

Although the present invention has been described above with reference to embodiments, the present invention is of course not limited to such embodiments, and the design may be freely modified without departing from the spirit of the present invention. be.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show one embodiment of the present invention, and FIG. 1 is a vertical sectional view showing the normal use state, FIG. 2 is a longitudinal sectional view showing the backwashing state, and FIG. 6 is a longitudinal sectional view showing the backwashing state. Figure 2 is an enlarged sectional view of part A, Figure 4 is the
FIG. 5 is a thin sectional view showing another embodiment in a normal use state, and FIG. 6 is a longitudinal sectional view showing its backwashing state. (1)... Sealed container, (5)...Mesh filter, (6)...Mesh filter. Sub-Agent Patent Attorney: Shige Okamoto (3 persons)

Claims (1)

[Claims] 1. A filter comprising a closed container installed in a piping system and a filter element within the container, characterized in that the filter element is constituted by a relatively movable double mesh filter, inside and outside.