JPH0788307A - Water fluid circulating filter system and suction filter device - Google Patents

Abstract

PURPOSE:To provide a effective water fluid circulating filter system which prevents clogging of internal filter media. CONSTITUTION:Surface filter media 4 having ruggedness are arranged on the base in fine-meshed surface filter media 5 of a cage type and these filter media are put into a coarse-meshed internal container 3b of a cage type. The internal container 3b is mounted within a container body 3a, by which the suction filter device 3 is constituted. Plural inside filter media 10 are arranged in the container 9 a to constitute a discharge filter device 9 and a pump 7 is connected between the discharge filter device and the suction filter device 3 by a pipe. The water from a water storage tank 1 is sent to the suction filter device 3 and is brought into collision against the rugged parts of the surface filter media 4 to destroy and disperse the viscous contaminating particle groups D contained in the water and to pulverize these groups; thereafter, this water is sent by the pump 7 to the discharge filter device 9 and is filtered by the inside filter media 10. The purified water is returned to the original water storage layer 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water fluid circulation filter system and a suction filtration device, and more particularly, to a pollutant particle group contained in a water fluid such as industrial running water or food industry (food and beverage) running water. The present invention relates to a water fluid circulation filter system and a suction filtration device that can stably maintain the filtration function of an internal filtration material of a discharge filtration device by previously breaking, diffusing, and atomizing a lump.

[0002]

2. Description of the Related Art Conventionally, an internal filter material used in a water fluid circulation filter system for filtering, for example, dampening water for printing has a three-dimensional structure as shown in the explanatory view of FIG.
It is three-dimensionally configured to have a filtering function, and water W, which is a water fluid to be filtered, is pressed by a pump or the like through the three-dimensional, thick internal filtering medium 10 to perform the internal filtering. The material 10 is forcibly passed from the surface 10a side toward the inside 10b side, and the contaminated fine particles d of impurities contained in the same water fluid are three-dimensionally and three-dimensionally filtered, and the hollow portion 10c of the shaft center is formed. It has a structure that collects the purified water W.
Therefore, in general, even if the contaminated particles d are attached to a part of the surface 10a of the internal filter medium 10, the water W is not hindered by the contaminated particles d attached to the surface,
Since the contaminant particles d can pass through the side of the contaminated fine particles d and proceed to the inside 10 b side of the inner filter medium 10, the other contaminated particles d contained in the water W can be separated from the inside 10 b of the inner filter medium 10.
As it passes through, it is filtered by the three-dimensional, three-dimensional filtering function of the inside 10b.

[0003]

However, in the water W, as shown in FIG. 5, the pollutant fine particles d gather around the fiber s such as paper dust, and the pollutant particle group D of a gradually larger lump is formed.
In many cases, these large pollutant particle groups D
Adhere to the surface 10a of the internal filter medium 10 of FIG. 4, and the surface area of the contaminated particle group D adhered is so large as to exceed the area of the individual contaminated fine particles d. The surface 10 of the inner filter medium 10 covered by the group D
In the case where a is clogged, the inside of the filter medium 10b in the vicinity thereof cannot serve as a passage for water, and therefore the three-dimensional and three-dimensional filtering function of the inner filter medium 10 is partially lost. However, there is a problem in that the filtration efficiency of the internal filter medium 10 decreases accordingly. Further, the amount of loss of the filtering function of the internal filter medium 10 (the loss zone portion represented by Z in FIG. 4)
However, there is a problem that other normal internal filter medium parts are overloaded, and as a result, the life cycle of the internal filter medium 10 is shortened. The present invention aims to solve such problems.

[0004]

To achieve the above object, the present invention provides the following fluid circulation filter system and suction filtration device. That is, the present invention is directed to a suction filter device having a rugged surface filter member disposed on the bottom surface of a cage-shaped surface filter member, and an internal filter member downstream of the suction filter device. And a pump that is connected between the suction filtration device and the discharge filtration device by a pipe and that sucks a water fluid from the suction filtration device side and sends the water fluid to the discharge filtration device side. It is a suction filtration device incorporating a fluid circulation filter system, and a system in which a concavo-convex surface filter is disposed on the bottom surface of a cage-shaped surface filter.

[0005]

In the above structure, the surface filter material formed in the irregular shape in the suction filtration device is formed on the inclined portion of the surface filter material having the irregular shape by accelerating the water fluid falling from above by the suction force of the pump. It strongly collides with the viscous contaminated particles contained in the water fluid, and destroys and diffuses them into fine particles. Next, the basket-type surface filtration material in the suction filtration device does not filter out polluted particles of a certain size or more among the polluted particles that have been atomized by the collision, and a small dirt stain less than that. It has the effect of passing only water fluid containing particles. Further, the pump has a function of pumping the water fluid into the inner filter medium of the next discharge filter device with pressure to forcibly filter the small contaminated fine particles contained in the water fluid. The internal filtering material of this discharge filtering device has a function of finely filtering the contaminated fine particles by a three-dimensional and three-dimensional filtering function.

[0006]

Embodiments of the present invention will now be described with reference to the drawings, showing how the construction of the present invention is actually embodied, together with its operation. FIG. 1 is an explanatory view showing an embodiment of the fluid circulation filter system of the present invention. In the drawing, reference numeral 1 denotes a water tank for dampening water for printing, for example. The water W is stored. The water W also contains contaminant particles d, and a contaminant particle group D formed by collecting contaminant particles d around fibers S such as paper dust. The water W in the water storage tank 1 passes through the pipe 2 as shown by an arrow and is sent into the suction filter device (suction filter device) 3. This suction filtration device 3
In the container body 3a, two surface filtration media 4 and 5 are provided in a coarse cage-shaped inner container 3b. Among them, the surface filter material 4 is formed by a net having a somewhat rough surface having some mountain-shaped irregularities, and the surface filter material 4 has viscous contamination contained in the water W falling from above. Particle group D
Has a function of colliding with the inclined surface of the concavo-convex and destroying it, and diffusing it into small pollutant fine particles d. Next,
The surface filtering material 5 is in the form of a fine mesh basket, and the surface filtering material 4 having the above-mentioned unevenness is arranged on the bottom surface of the fine mesh. This cage-type surface filter medium 5 has a role of primary filtration for filtering the contaminated fine particles D which are destroyed and diffused by the uneven surface filter medium 4 and have a certain size or more. There is. The cage-shaped fine mesh surface filter material 5 is housed in the same cage-shaped coarse mesh inner container 3b. This internal container 3b
Is a basket type, and the whole is formed by a net of thick lines with coarse mesh,
It plays a reinforcing role of accommodating and supporting the surface filtering materials 4 and 5.

A pump 7 is provided downstream of the suction filtration device 3 so that the water W containing the contaminated fine particles d is sucked through the pipe 6. Due to the suction force of the pump 7, the water W that naturally falls on the surface filter medium 4 having irregularities in the suction filtration device 3 is accelerated, and the force that collides with the surface filter medium 4 having irregularities is further strengthened. Therefore, the destructive force by which the contaminated particle group D is destroyed by the collision increases. Further, a discharge filter device (delivery filter device) 9 is provided downstream of the pump 7 via a pipe 8, and the water W containing the contaminated fine particles d is sent by the pressure of the pump 7. This discharge filtration device 9 includes a container 9
A plurality of internal filter media 10 are provided in a. The internal filter medium 10 is a filter medium having a three-dimensional structure as described in detail in the conventional example (FIG. 3), and the entire thick layer thereof has a filtering function. When water is poured into the internal filter medium 10 at the pressure of the pump 7, the water W is contained in the water W when passing through the three-dimensional three-dimensional internal filter medium 10 by the forced pressure. The contaminated fine particles d are filtered by the filtering function on the surface and inside of the internal filter medium 10. At this time, the contaminated fine particles d are 1
By the subsequent filtration, the lumps of the particle group D have already disappeared, and since they have been made into fine particles, there is no possibility of being blocked by the surface 10a of the internal filter medium 10, and therefore, the surface is not clogged, and the layers of the filter medium 10 as a whole. Contamination particles d are dispersed and permeated throughout with water W, and are sufficiently filtered by the three-dimensional and three-dimensional filtering function. The water W that has been filtered and purified by the internal filter medium 10 is returned from the discharge filter device 9 to the original water storage tank 1 via the pipe 11. By repeatedly circulating such a series of purifying actions, the water fluid circulation filter system constantly purifies the water W in the water storage tank 1 and supplies a high-quality water fluid.

FIG. 2 is a cross-sectional explanatory view for explaining one embodiment of the suction filtration device (suction filter device) of the present invention, in which 4 is a plurality of mountain-shaped uneven surface filtrations. The material is formed with a mesh of about 60 mesh. Further, 5 is a cage-type surface filtration medium, and the entire cage-type surface filtration medium 5 is composed of a mesh of about 80 mesh, which is slightly finer than the surface filtration medium 4 having the irregularities. The uneven surface filter material 4 collides the water W that falls onto the sloped portion of the uneven mountain or the like, and contaminates the impurities contained in the water W and the fibers s such as paper dust. A lump of a large contaminated particle group D, which is an aggregate of fine particles d, is destroyed to form the original small contaminated fine particles d, and the fibers s are also microparticulated, and have a size suitable for filtering the inner filter medium of the downstream discharge filter. It plays the role of sending in. That is, in this suction filtration device 3, the water W falling from the upper part is accelerated by the force sucked by the above-mentioned pump, strongly collides with the uneven surface filtration material 4, and is contained in the water W. The pollutant particle group D composed of the pollutant particles d and the fibers s existing therein is destroyed and dispersed by the force of the water W that obliquely collides at the inclined portion of the uneven mountain. As a result, the agglomerates of the viscous contaminated particle group D are converted into individual small contaminated particles d. Next, the surface filtration material 5 pre-filters the destroyed contaminant fine particles d and the like having a certain size or more, and only the water W containing the small contaminant fine particles d flows downstream. In other words, it plays the role of primary filtration. Therefore, the surface filtration material 5
Is a basket with a fine mesh of about 80 mesh. The surface filtration materials 4 and 5 are also housed in a cage-shaped internal container 3b. The inner container 3b is composed of a coarse and thick mesh of about 5 mesh, and plays a reinforcing role for accommodating and holding the surface filter media 4 and 5 inside thereof. The internal container 3b having such surface filtration materials 4 and 5 is attached to the inside of the container body 3a of the suction filtration device 3 by the attachment member 3
It is attached at c to form the suction filtration device 3. The container body 3a is provided with a water inlet 3d and a water outlet 3e, and the water inlet 3d is provided in the water storage tank 1 and the water outlet 3e, respectively.
Is connected to the discharge filtration device 9 via the pump 7.

FIG. 3 is a more detailed explanatory view of the surface filter material 4 having irregularities and the contaminated particle group D, in which the contaminated particle group is placed on the convex portions of the irregularities of the surface filter material 4 having a mesh of 60 mesh. D covers it in an unstable manner, and water W falls and collides from it. The reason why the surface filter material 4 is formed in a mountain shape having irregularities is that the pollutant particle group D is unstablely supported, and water is obliquely collided to efficiently destroy the pollutant particle group D. That water W
By the collision, the pollutant particle group D composed of the fibers s such as paper dust and the pollutant fine particles d is finely decomposed and passes through the mesh of 60 mesh, and together with the water W, the fibers s and the pollutant particulate d.
Shows that and can be filtered downward. As described above with reference to the embodiments, the water-fluid circulation filter system of the present invention first uses two kinds of two-dimensional surface filtration media as the suction filtration media of the suction filtration device to remove contaminant particles. It is configured to destroy and disperse large lumps into small contaminated fine particles, and then filter and remove the small contaminated fine particles with the three-dimensional discharge filter material of the discharge filtration device. In addition, it is possible to prevent clogging of the discharge filtration device and sufficiently exert its three-dimensional filtration function, and to construct an excellent water fluid circulation filter system. In addition, the suction filtration device has a simple structure because the two-dimensional surface filter material having a plurality of mountain-shaped irregularities is arranged on the bottom surface of the cage-shaped two-dimensional surface filter material. A large lump of pollutant particles is destroyed and made into fine particles,
In addition, by carrying out primary filtration, it is sent out in a state suitable for the discharge filtration device of the downstream secondary filtration, the surface clogging of the discharge filtration device is prevented, and the three-dimensional and three-dimensional filtration function is backed up. It is a thing.

[0010]

As described above, according to the present invention, a water fluid circulation filter system includes a suction filtration device having a surface filtration material,
A discharge filter device having an internal filter medium and a pump provided between the two are provided, and a large lump of contaminated particles contained in water is broken down by the surface filter medium into fine particles, and primary filtration is performed. Since it is sent to the downstream discharge filtration device which is the next filtration, there is no fear that a large lump of contaminated particles will adhere to the surface of the internal filtration material, and therefore the reduction of filtration efficiency due to clogging of the surface of the internal filtration material is prevented. , The efficiency of water fluid circulation filter system will be improved. Further, since the suction filtration device is composed of the uneven surface filtration material and the basket-type surface filtration material, a large lump of pollutant particles can be easily destroyed and diffused into a pollutant fine particle by a simple device, and After the primary filtration, it is sent to the downstream discharge filtration device which is the secondary filtration.
The effect of preventing clogging of the surface of the internal filter material of the device, maintaining its three-dimensional and three-dimensional filtering function, and prolonging the life cycle of the internal filter material can be achieved. is there.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment of a water fluid circulation filter system of the present invention.

FIG. 2 is a sectional explanatory view of an embodiment of the suction filtration device of the present invention.

FIG. 3 is a detailed explanatory diagram of a surface filtration material and a contaminated particle group of the present invention.

FIG. 4 is a partially cutaway perspective view of a conventional example.

FIG. 5 is an explanatory diagram of a contaminated particle group of a conventional example.

[Explanation of symbols]

 3 Inhalation Filtration Device 4 Concavo-convex Surface Filtration Material 5 Cage Type Surface Filtration Material 7 Pump 9 Discharge Filtration Device 10 Internal Filtration Material

Claims (2)

[Claims] 1. A suction filter device having a rugged surface filter material disposed on the bottom of a basket-type surface filter material, and an internal filter material downstream of the suction filter device. And a pump that is connected between the suction filtration device and the discharge filtration device by a pipe and that sucks a water fluid from the suction filtration device side and sends the water fluid to the discharge filtration device side. Fluid circulation filter system. 2. An inhalation filtration device incorporating a rugged surface filter provided on the bottom surface of a cage-shaped surface filter.