JP2003117311A - Apparatus for filtering liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a columnar liquid filtering apparatus which is connected linearly to a piping of a circulation route of a lubricant using apparatus such as an internal-combustion engine or a circulation water using apparatus such as a heat exchanger, can be attached detachably to the suitable position of the piping without expanding the size of the piping and has satisfactory filtration capacity. SOLUTION: This columnar liquid filtering apparatus 6 is disposed attachably/ detachably between an introduction pipe 4a for introducing the fluid to be filtered and a discharge pipe 4b for discharging the filtered fluid. The apparatus 6 is provided with a metallic outer pipe 11 extended linearly and a perforated partition wall 12, a flow straightening chamber 13, a catalyst-packed chamber 14, an agitating means 15, a magnet chamber 17 and a merging/mixing chamber 17 which are arranged in the pipe 11 in optical order from the upstream side of toward the downstream side.

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 removing foreign matter such as sludge from lubricating oil used in, for example, an internal combustion engine, and more particularly to a liquid filter having a function of suppressing deterioration of the lubricating oil due to oxidation or the like. The present invention relates to a filtering device.

[0002]

2. Description of the Related Art A filter paper is generally used as an oil filter for removing suspended matters such as sludge from a lubricant oil used in a device using a lubricant oil, such as an internal combustion engine, and a gap between the filter paper is used. When the lubricating oil passes through, the suspended matter such as sludge is filtered out, and the lubricating oil is filtered (purified). A conventional internal combustion engine includes a pump that circulates lubricating oil, an oil filter that purifies the lubricating oil, a heat-resistant
It is connected by a pipe (or a hose or the like) formed of an oil resistant material. The conventional oil filter purifies the lubricating oil by filtering and removing suspended matters such as sludge floating in the lubricating oil using a filter paper and adsorbing contaminants to the filter paper. On the other hand, instead of the method using a filter paper such as an oil filter, an oil filter for purifying lubricating oil by using ceramic grains, tourmaline or granite, which is a granite, has also been studied. For example, in an oil filter using ceramic particles or boiled stone particles, the pollutants are adsorbed in each pore of the porous structure, and the porous structure is used to naturally generate microorganisms that can live in lubricating oil. It is generated (spontaneously settled) to form a colony, and the microorganisms decompose organic substances in the lubricating oil to purify the lubricating oil. Further, for example, in an oil filter using a granite ore grain having a magnetic effect or an electric effect such as tourmaline grain as a catalyst, deterioration is prevented by reducing oxidized lubricating oil (delay).
is doing. The above-mentioned microorganisms spontaneously form colonies in the pores of the ore grains having a porous structure in the lubricating oil and settle there, and ingest the organic substances and the like in the lubricating oil as nutrients. Etc. are known to be decomposed.

However, each of the above-mentioned conventional oil filters has a filtering action on the lubricating oil, a decomposing action (purifying action) on organic substances in the lubricating oil, or a reducing action on the oxidized lubricating oil (deterioration prevention). However, it was not possible to maintain each of the above-mentioned effects on the lubricating oil for a long period of time. For example, in the oil filter using the above filter paper, after adsorbing the pollutant until it becomes saturated, the suspended matter is only blocked until the filter paper becomes clogged, and the filter paper can live in the lubricating oil. Although microorganisms may spontaneously settle, the surface area of the filter paper is small, that is, since the contact area between the lubricating oil and the colonies of microorganisms is small, it is not possible to expect an effective level of degrading organic substances, etc. As a matter of course, since it does not have a magnetic effect or an electric effect, it was not possible to expect a reducing action. Also, in the case of oil filters that use ceramic particles or boiled stone particles, when the amount of contaminants adsorbed to the porous structure, which is the initial stage after replacement, is small, microbial colonies effectively act to decompose organic substances, etc. However, if the amount of adsorbed pollutants approaches the saturation point and the amount of suspended solids increases, the pores of the porous structure will become clogged, and microorganisms will suffocate and colonies will collapse, thus maintaining the decomposition action of organic substances, etc. I couldn't. Even with an oil filter that uses tourmaline particles, when the amount of adsorbed (adhered) contaminants on the surface of the tourmaline particles is small at the initial stage after replacement, the oxidized lubricating oil is reduced on the surface of the tourmaline particles. However, when the amount of contaminants attached to the surface of tourmaline particles increases, the distance between the lubricating oil and the tourmaline particles increases, and the magnetic or electrical effect from the tourmaline particles to the lubricating oil weakens. Could not maintain the reducing action of.

[0004]

In order to solve such a problem, the present applicant has, in Japanese Patent Application No. 11-324675, purifying contaminants and suspended substances in lubricating oil for a long period of time. At the same time, we proposed an oil filter that maintains the reducing action of lubricating oil. Specifically, Japanese Patent Application No. 11
The invention according to No. 324675 is an oil filter installed in a circulation path for forcibly circulating lubricating oil discharged from a lubricating oil using device and returning the lubricating oil to the lubricating oil using device. An ore grain chamber partitioned by a partition plate and an oil-perforated partition plate is provided, and the ore grain chamber is filled with ore grains obtained by crushing mudstone chlorite schist. Not only does it purify pollutants and suspended substances in lubricating oil over a long period of time,
It makes it possible to reduce the lubricating oil.
In the filtering device using the above oil filter, the housing is filled with a filter medium, and is fixed in a state in which the oil inlet pipe is drawn into the housing from one end side, and the tip of the oil inlet pipe is arranged opposite to the bottom surface of the other end of the housing. Furthermore, by arranging the filter medium in the space between the outer circumference of the oil inlet pipe and the inner wall of the housing, the oil discharged from the oil inlet pipe is configured to collide with the bottom surface of the housing and fold back before being forcedly passed through the filter medium. ing. The oil that has passed through the filter medium is discharged from the oil output pipe arranged on one end side of the housing. Since the housing having the filter medium inside has a shape larger than the oil inlet pipe and the oil outlet pipe and largely protruding from the piping path of both pipes, the volume occupied by the casing becomes large, and the size of the device is increased. There was a problem. Further, while the conventional apparatus has a low processing capacity and the total processing capacity is about 200 to 400 liters, the pressure loss becomes large even if the processing capacity is increased to increase the processing capacity. It was On the other hand, in order to prevent such an increase in occupied volume and an increase in pressure loss, it is conceivable to arrange a column-shaped (blanket-shaped) casing in the middle of the pipe so as to be in line with the pipe. However, if a sufficient amount of filter material is arranged in the housing to increase the filtration efficiency, the axial length of the housing is inevitably increased, which may hinder the layout of the piping. The present invention has been made in view of the above, in a lubricating oil using device such as an internal combustion engine, in a circulating water using device such as a heat exchanger, in the pipe constituting the circulation path, is connected in a straight line with the pipe. It is an object of the present invention to provide a column type filtration device that can be attached to and detached from an appropriate place of a pipe without increasing the size and shape, and that has a sufficient filtration capacity.

[0005]

In order to solve the above problems, the invention of claim 1 is removably arranged between an introduction pipe for introducing a fluid to be filtered and a discharge pipe for discharging a filtered fluid. A column-type filtration device having a linearly extending metal outer tube, and a perforated partition plate, a rectifying chamber, arranged in any order from the upstream side to the downstream side in the metal outer tube.
It is characterized by being provided with a catalyst filling chamber, a stirring means, a magnet chamber, and a confluent mixing chamber. The invention of claim 2 is characterized in that the perforated partition plate is composed of an expanded metal plate and / or a perforated stainless steel plate. The invention of claim 3 is characterized in that at least one catalyst filling chamber is arranged on each of the upstream side and the downstream side of the stirring means. According to the invention of claim 4, in the metal outer tube, from the upstream side to the downstream side, a first expanded metal plate,
First rectifying chamber, second expanded metal plate, second rectifying chamber, first perforated stainless plate, first catalyst filling chamber, second perforated stainless plate, stirring means, third perforated plate Stainless plate, magnet chamber, third expanded metal plate, confluence mixing chamber, fourth perforated stainless plate, second catalyst filling chamber, fifth
The perforated stainless steel plate, the third rectifying chamber, the sixth perforated stainless steel plate, the third catalyst filling chamber, and the fourth expanded metal plate are sequentially arranged. According to a fifth aspect of the present invention, at least one of the catalyst-filled chambers is a three-wave modified rock,
Alternatively, it is characterized by being composed of ore grains obtained by crushing mudstone chlorite schist. The invention of claim 6 is characterized in that the average grain size of the ore grains is in the range of 20 to 40 mm. The invention according to claim 7 is characterized in that the average size of the particle diameters of the ore grains forming each of the catalyst filling chambers gradually decreases from the upstream side to the downstream side. According to the invention of claim 8, the average particle size of the ore grains forming the catalyst packing chamber located on the upstream side is smaller than the average particle size of the ore grains forming the catalyst packing chamber located on the downstream side. Characterize.
According to the invention of claim 9, the catalyst packing chambers are arranged in three chambers in order from the upstream side to the downstream side, and the average particle diameter of the ore grains constituting the most upstream catalyst packing chamber is 30 to 40 mm, The average particle size of the ore grains forming the catalyst filling chamber located at the position 1 and the catalyst filling chamber at the most downstream is 20 to 30 mm, respectively. The invention of claim 10 is characterized in that a rectifying chamber not filled with the ore grains is provided between at least two catalyst filling chambers.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the illustrated embodiments. FIG. 1 is a schematic view of an internal combustion engine having a lubricating oil circulation path using a liquid filtering device according to an embodiment of the present invention, and FIG. 2 is a sectional view of the filtering device.
The internal combustion engine 1 includes a lubricating oil discharge portion 1b and a cooling device 3
Are connected by a connecting pipe body 2, and the cooling device 3 and the lubricating oil introducing portion 1a of the internal combustion engine 1 are connected by a pipe body 4 as a circulation path. A pump 5 and a filtering device 6 according to the present invention are arranged in the middle of the tube body 4. The internal combustion engine 1 is, for example, a gasoline engine or a diesel engine, and the cooling device 3 is an oil cooler or a radiator for cooling the lubricating oil. Lubricating oil is used as a cooling medium for reducing sliding resistance between sliding members such as pistons and cylinders in an internal combustion engine, and for preventing overheating of the internal combustion engine. Pump 5
Is a power source that circulates the lubricating oil discharged from the internal combustion engine 1 and cooled by the cooling device 3 so as to be returned to the internal combustion engine 1 via the filtering device 6. The filtering device 6 includes, for example, an introduction pipe 4a for introducing a lubricating oil as a fluid L to be filtered of an internal combustion engine and a discharge pipe 4 for discharging a filtered fluid L '.
It is a column type (blanket-shaped) filter device that is detachably arranged between the filter device and b. This filtering device 6 has a metal outer tube 11 extending linearly and a perforated partition plate 12 arranged in the metal outer tube 11 in any order from the upstream side to the downstream side,
Rectifying chamber 13, catalyst filling chamber 14, stirring means 15, magnet chamber 1
6. It has a merging and mixing room 17.

The configuration, the number of arrangements, and the arrangement order of each of these constituent elements 12 to 17 can be variously selected, but the optimum configuration example will be shown below. First, the perforated partition plate 12 has, for example, a rhombus shape as shown in FIG. 3A (triangles, other polygons may be used), a depth in the penetrating direction, and an axial direction. An expanded metal plate 21 made of a thick plate having a large number of through holes inclined at a predetermined angle, and a large number of circular through holes having a small hole diameter as shown in FIG. A perforated stainless steel plate 22 and a perforated stainless steel plate 23 having a small aperture ratio and having a small number of through holes having a large hole diameter as shown in FIG. 3C are used. In the expanded metal 21, since each through hole is inclined in a predetermined direction and has a required depth, the lubricating oil after passing through each through hole becomes a flow inclined with respect to the axial direction of the outer pipe 11, Forms a turbulent flow. The lubricating oil has a regular flow after passing through the perforated stainless steel plate 22. The perforated stainless steel plate 23 reduces the flow rate of the lubricating oil in the lower portion of the outer pipe by reducing the diameter of only the through hole in the lower portion,
The flow velocity of the lubricating oil is increased through the large-diameter through hole located at the upper part. This is to prevent the flow velocity and flow rate of the lubricating oil from decreasing downwards and to prevent stagnation. For example, most of the foreign matter with a large specific gravity that moves while precipitating in the lubricating oil is the outer pipe. The effect of preventing movement along the lower part of 11 is exhibited. That is, the lubricating oil having a large flow velocity passing through the large-diameter through-hole located above is forcibly taken in the foreign matters having a large specific gravity to be settled and moved to the downstream side. By appropriately selecting the arrangement and combination of the perforated partition plates 12 (21, 22, 23) having different hole diameters and opening ratios and arranging them in the metal outer tube 11, the inside of the metal outer tube 11 is unidirectionally arranged. It is possible to prevent the flow of the lubricating oil flowing in the filter medium from being biased by making the lubricating oil flowing into the filter medium pass through all the channels at a uniform density. Also, the arrangement of each partition plate with holes,
By devising the combination, the flow path of the lubricating oil may be changed to form a turbulent flow and enhance the filtration efficiency. The perforated stainless steel plates 22 and 23 are steel plates provided with through holes whose dimensions are determined so that the lubricating oil can pass through and the ore grains 24 of the chlorite schist do not flow out of the catalyst filling chamber 14, and the expanded metal. Board 2
No. 1 is a punching metal having a through hole whose dimensions are determined so that the lubricating oil can pass through and the ore grains do not flow out like the through hole.

At least one catalyst filling chamber 14 is arranged on each of the upstream side and the downstream side of the stirring means 15. At least one of the catalyst filling chambers 14 has a structure in which ore grains 24 obtained by crushing a three-wave denatured rock or mudstone chlorite schist are filled as a filter medium. The ore grains 24 of the three-wave metamorphic rock or chlorite schist which is mudstone can adsorb and clean foreign matter such as sludge in the lubricating oil, or prolong the life of the lubricating oil by redox power and maintain the quality. . Ore grain 2
The average particle size of 4 is in the range of 20 to 40 mm. The average size of the ore particles 24 forming each catalyst filling chamber 14 is
It is effective to increase the filtration effect by gradually decreasing the amount from the upstream side to the downstream side. Furthermore, in order to enhance the filtering effect, it is also possible to configure the average particle size of the ore particles forming the catalyst packing chamber located on the upstream side to be smaller than the average particle size of the ore particles forming the catalyst packing chamber located on the downstream side. Is effective in. In this example, the stirring means 15 is composed of a propeller 26 whose shaft is rotatably supported by a bearing 25 provided in the center of the partition wall of the magnet chamber 16. The propeller 26 is composed of, for example, three blades as shown in FIG. 4, and may be configured to rotate by the fluid pressure of the lubricating oil flowing from the upstream side, or may be rotationally driven by a motor (not shown). good. In any case, the stirring means 15 stirs the lubricating oil to form a turbulent flow and also stirs the lubricating oil so as to uniformly spread and move throughout the outer tube. Furthermore,
Impurities contained in lubricating oil having different specific gravities are uniformly dispersed. On the upstream side of each catalyst filling chamber 14, a rectifying chamber 13 as an empty space in which ore grains are not arranged is arranged. The merging / mixing chamber 17 is also a kind of rectifying chamber. The rectifying chamber 13 and the merging / mixing chamber 17 are the expanded metal 21C located immediately before.
This is a vacant space for disturbing the flow of the lubricating oil passing through the expanded metal 21C in cooperation with. Magnet room 16
Has a configuration in which a permanent magnet (flight magnet) 30 is arranged in the inside thereof as shown in FIGS. 2 and 5. The permanent magnet 30 adsorbs, for example, iron contained in the lubricating oil passing therethrough. In addition, the permanent magnets 30 in the vertical position relationship
Since the parts of the same polarity are arranged to face each other, the permanent magnets repel each other in this part. Magnetic energy is given by giving the magnetic force formed here to lubricating oil.

By the way, the lubricating oil that has passed through the through holes provided in each of the perforated partition plates 12 enters the catalyst filling chamber 14 and passes through the gaps of the ore grains 24. At that time, the lubricating oil as a fluid is used. From the general characteristics of, the characteristic is that a large amount of lubricating oil flows in a path with a large gap and a small resistance to form a flow path with a large gap, and lubricating oil does not flow too much in a path with a small gap and large resistance. is doing. That is, the amount of fluid such as lubricating oil tends to increase in a specific easy-to-flow portion (a portion with a large gap), but tends to decrease in other difficult-to-flow portions. Since the surrounding substance is entrained (eroded) by flowing, the gap is further enlarged and the flow passage is easily formed.
In that case, the load of the fluid is reduced, so that the permeation rate of the lubricating oil is increased, but conversely, the contact area where the lubricating oil comes into contact with the ore grains is decreased. become weak. If an attempt is made to efficiently filter a large amount of lubricating oil for a long period of time by arranging a filter medium having such a defect, there is a problem in that the entire filtering device must be lengthened. In order to solve such a problem, it is effective to make the lubricating oil turbulent in order to disperse and homogenize the lubricating oil which tends to flow unevenly in a portion that easily flows. As means for making the flow turbulent, in the present invention, various methods such as devising the shape of the through holes formed in the perforated partition plate 12 or stirring with a propeller are adopted. The configuration of the filtration device shown in FIG. 2 is an example of a configuration suitable for such turbulence and stirring.

Next, the specific structure of the filtering device 6 as an example shown in FIG. 2 will be described. This filtering device 6 will be described.
In the metal outer tube 11 from the upstream side to the downstream side, the first expanded metal plate 21A and the first rectifying chamber 13
A, second expanded metal plate 21B, second rectifying chamber 13B, first perforated stainless plate 22A, first catalyst filling chamber 14A, perforated stainless plate 23, stirring means 15, second perforated stainless plate Plate 22B, magnet chamber 16, third expanded metal plate 21C, merging and mixing chamber 17, third perforated stainless plate 22C, second catalyst filling chamber 14B, fourth perforated stainless plate 22D, third rectification The chamber 13C, the fifth perforated stainless steel plate 22E, the third catalyst filling chamber 14C, and the fourth expanded metal plate 21D are sequentially arranged. In this embodiment, the catalyst charging chamber 14 is sequentially arranged from the upstream side to the downstream side in three chambers (14A, 14B, 1).
4C), the average particle diameter of the ore particles 24 constituting the most upstream catalyst filling chamber 14A is in the range of 30 to 40 mm, the intermediate catalyst filling chamber 14B and the most downstream catalyst filling chamber 1
The average grain size of the ore grains 24 constituting each of 4C is 20 to 30.
The range is mm. Further, it is also characteristic that a rectifying chamber 13C in which ore grains 24 are not filled is provided between at least two catalyst filling chambers 14B and 14C. In the above configuration, the lubricating oil discharged from the lubricating oil discharge portion 1b of the internal combustion engine 1 into the pipe body 4 through the cooling device 3 is introduced into the filter device 6 by the pump 5. The lubricating oil introduced from the pipe body 4 into the filtering device 6 is in a state of containing foreign matters having various specific gravities, and the foreign matters having a large specific gravity are provided in the lower portion and are flowing. Therefore, first, the lubricating oil is passed through the through hole of the first expanded metal plate 21A to stir the lubricating oil in the first rectifying chamber 13A located immediately after that in a turbulent state. Next, the second expanded metal plate 21B and the second rectifying chamber 13B cooperate with each other to further promote turbulence and promote the stirring state. As a result, the lubricating oil that has passed through the uniform through holes of the first perforated stainless steel plate 22A and reached the inside of the first catalyst filling chamber 14A is
The density of foreign matter is uniform.

Since the ore grains 24 as a filter medium in the first catalyst filling chamber 14A are three-wave modified rocks having a relatively large grain size or chlorite schist which is a mudstone, lubricating oil is used in the gaps between the ore grains. When passing, it is possible to adsorb and clean foreign matter such as sludge in the lubricating oil, and to prolong the life of the lubricating oil by the redox power and maintain its quality. The first perforated stainless steel plate 22A guides the lubricating oil into the catalyst filling chamber 14A evenly through the through holes having a uniform distribution, and the perforated stainless steel plate 23 having no uniform through holes fills the catalyst. When the lubricating oil is discharged from the chamber 14A, the foreign matters having a large specific gravity that tend to be accumulated in the lower portion are discharged from the large-diameter through hole on the upper side, so that the foreign matters having a large specific gravity are moved upward. The lubricating oil discharged from the first catalyst filling chamber 14A is in a state of being oxidized and reduced by removing a large amount of foreign matter such as sludge, and is agitated by the agitation means 15 in the next stage to be turbulent. . Subsequently, the lubricating oil that has entered the magnet chamber 16 through the second perforated stainless steel plate 22B is adsorbed with the iron content contained therein by the action of the permanent magnet 30. Further, magnetic energy is applied by applying to the lubricating oil the magnetic force formed between the permanent magnets 30 that are in the vertical position. Then, the third expanded metal plate 21C
The lubricating oil that has been further turbulently flowed by the cooperation of the merging and mixing chamber 17 and the stirring has proceeded to the third perforated stainless steel plate 22C.
It is guided into the second catalyst filling chamber 14B through the through hole provided in. Since the second catalyst filling chamber 14B is filled with the ore particles 24 having a smaller particle diameter, fine impurities that cannot be completely removed on the upstream side are removed and redox is performed. Next, the fourth and fifth perforated stainless steel plates 22
The lubricating oil that has passed through the third rectifying chamber 13C formed by D and 22E is subjected to the final filtering process in the third catalyst filling chamber 14C, is discharged from the fourth expanded metal plate 21D, and is fed to the lubricating oil introducing portion. It is circulated from 1a into the internal combustion engine 1.

In the present invention, since the column type filtration device 6 is arranged in a straight line in the straight path of the tube body 4,
Unlike the conventional filtering device, the structure does not greatly project laterally from the tubular body, and the size can be reduced.
Moreover, since the arrangement of the filtering material inside the filtering device is also a simple series structure, the pressure loss is reduced in spite of its short length, and it is possible to exert an efficient filtering capacity despite its small size. Therefore, a large amount of lubricating oil (a conventional limit processing amount of 400
It is possible to process much more than liter). The metal outer tube 11 constituting the filter device 6 has flanges 11a, 11b, 11 located at both axial ends thereof.
It can be attached to and detached from the tubular body 4 and the like at c. Further, in this example, an example in which the respective components, that is, the perforated partition plate 12, the rectifying chamber 13, the catalyst filling chamber 14, the stirring means 15, the magnet chamber 16, and the merging / mixing chamber 17 are directly incorporated in the metal outer tube 11 is shown. As shown, if a detachable cylindrical cartridge is used inside the metal outer tube 11 and each of the above-mentioned components is incorporated into the cartridge, each component is removed by detaching the cartridge from the outer pipe. It becomes possible to exchange.
In the case where the cartridge becomes too long by incorporating all the components in one cartridge, the cartridge may be divided into two parts at appropriate positions (propeller positions). As described above, when the filtering ability of the ore particles as the filter medium is lowered, the entire filtering device can be replaced. The filtering device of the present invention can be used as a general filtering means for liquids such as water, in addition to filtering and purifying liquid oil such as lubricating oil. Even if the object to be filtered is changed from oil to water, the configuration shown in the above embodiment can be applied to the arrangement of each component such as the filter medium.

Next, the ore grains used in the embodiment of the present invention will be described. The ore particles 24 and the like used in each embodiment of the present invention are ore particles obtained by crushing chlorite schist. Chlorite is a mudstone and is included in, for example, Sanbiwa metamorphic rocks. The Sanbiwa metamorphic rock is classified as a carbon-based natural stone in mineralogy, and the genus is considered to be graphite schist or sericite, and one rock is sandwiched with chlorite schist, which is a heterogeneous rock. It is a composition that combines. Sanbiwa metamorphic rock is an ore composed of aggregates of fault clay calculated from the Paleozoic strata, which is said to be the oldest in Japan. Metamorphic rocks such as Sanbiwa metamorphic rocks are existing rocks that have been transformed into other rocks by the action of heat, pressure, intrusion of igneous rocks, etc. inside the crust. Thermal metamorphic rocks) and regional metamorphic rocks. Contact metamorphic rocks are mainly produced by the influence of heat, and regional metamorphic rocks are produced by the influence of pressure or pressure and heat over a wide area. The Sanbiwa metamorphic rocks are classified as regional metamorphic rocks. In wide-area metamorphic rocks,
Metamorphism is carried out under the bias of the crust to form thin layers with different mineral compositions. Under the bias of the crust, innumerable developed cleavages are generated in the flaky thin layer of regional metamorphic rocks, and recrystallization is performed along the cleavages. The crystal growth direction is a direction parallel to the cleavage, or a biased direction of the crust.
Chlorite schist generally has a property of being easily dissolved (soft) in a liquid such as water or a lubricating oil because it is a mudstone as described above. For this reason, it is conventionally considered insane to use chlorophyll schist, which is easily soluble in water, as it is for water purification, and it is difficult to dissolve it in water, such as ceramic grains that are not easily soluble in water, granite bakuhanishi grains, or granite. Studies have been conducted on the use of tourmaline grains and the like for water purification and the like. Examples of conventional research on chlorite schist or Sanbiwa metamorphic rock include, for example, water purification using a molded product that is formed by pulverizing and then using a binder to form it, or pulverizing and then sintering (firing). Deodorization was studied.

Further, the chlorite schist used in the present invention contains, as components, carbon, magnetite, magnetite, etc., and divalent iron and trivalent iron in a ratio of about 3: 1, and carbon is used as a medium for oxidation. The action and the reducing action can be repeated. Also, 3
Valent iron ions acquire a negative charge to become divalent iron ions, at which time they generate 771 mV of energy, while divalent iron ions gain energy and become trivalent iron ions. At that time, the action of releasing a negative charge (negative ion) is known. Since the movement of the negative charge is an electric current, a magnetic line of force is generated. Generally, divalent iron and trivalent iron in chlorschist that have just been excavated from the quarry are in an unstable state in which oxidation has not progressed, and by excavation and contact with ambient air (oxygen) It is considered that it gradually takes in surrounding oxygen and becomes stable iron oxide.
In general, the oxidation of iron is such that divalent iron and oxygen are combined to form FeO, and trivalent iron is combined with oxygen to form Fe ₂ O _3. For example, when divalent iron is oxidized, It is considered that, first, divalent iron is oxidized, and when the oxidation of the divalent iron oxide further proceeds, a trivalent iron oxide is generated. When trivalent iron oxide is produced from the divalent iron oxide,
As described above, it is considered that when divalent iron ions become trivalent iron ions, they act to release a negative charge (negative ion). Further, since oxygen is taken in from the surroundings when the above iron is oxidized, it is considered that the surrounding substances (air containing oxygen, liquid or solid, etc.) are reduced.

Since the chlorite schist used in the present invention generates magnetism (lines of magnetic force) as described above, the cluster scale of water molecules can be increased. As a result,
Since the bond between oil and water is weakened, the oil adhering to the wall surface of the container or the like that binds to water is dissociated from the wall surface, or the oil and water are mixed and the emulsified liquid is separated again into oil and water ( Increase the degree of separation).
Regarding the properties of the above-described chlorite schist used for water purification, Japanese Patent Application No. 10-2 filed by the inventor of the present application will be referred to.
No. 66880 (invention of removing oleaginous components from sewage using chlorite schist for grease trap) provides more detailed explanation. In the present invention, chlorite schist is used for purification of lubricating oil, and in relation to Japanese Patent Application No. 10-266880, the object to be purified is changed from oil and fat components in water to sludge in lubricating oil, and is unique to lubricating oil. The difference is that it suppresses deterioration due to oxidation. Regarding the change in the purification target, the types of microorganisms that naturally occur (establish) in chloroschist are different between microorganisms that inhabit colonies of chlorophyll in water and microorganisms that inhabit colonies in lubricating oil. It corresponds to the purification target. Regarding the oxidation of the lubricating oil, it is considered that the oxidation of the lubricating oil can be suppressed because the oxidized lubricating oil is reduced by the oxidation of iron in the chlorite schist as described above.

[0016]

As described above, according to the present invention, in a lubricating oil using device such as an internal combustion engine or a circulating water using device such as a heat exchanger, the pipe is linearly connected to the pipe constituting the circulation path. (EN) A column type filtration device, which can be attached to and detached from an appropriate place of a pipe without increasing the size and shape, and can provide a liquid filtration device having sufficient filtration ability. In addition, a filtering device capable of maintaining the filtering action of the lubricating oil, the decomposing action of organic substances in the lubricating oil (purifying action), and the reducing action of the oxidized lubricating oil (deterioration preventing action) for a long period of time. Can be provided. That is, according to the first aspect of the invention, the partition plate with holes, the rectifying chamber, the catalyst filling chamber, the stirring means, the magnet chamber, and the confluence are arranged in any order from the upstream side to the downstream side in the linearly extending metal outer tube. Since the mixing chambers are arranged on a straight line, the filtration capacity can be enhanced without increasing the outer diameter dimension and the axial dimension, despite the simple structure. Further, since it can be attached to any position of the pipe, the layout of the attachment target device is not damaged. In the invention of claim 2, since the perforated partition plate is composed of an expanded metal plate and / or a perforated stainless steel plate, by appropriately arranging these, an arbitrary turbulent flow is formed, Efficient filtration can be realized by controlling the flow path and density of the liquid as the object to be treated inside the filtration device. In the invention of claim 3, since at least one catalyst filling chamber is arranged on each of the upstream side and the downstream side of the stirring means, the components that cannot be filtered in the upstream catalyst filling chamber are once stirred. After being dispersed, it can be reliably captured and removed in the downstream catalyst filling chamber. In the invention of claim 4, in the metal outer tube,
From the upstream side to the downstream side, the first expanded metal plate, the first rectifying chamber, the second expanded metal plate, the second
Rectifying chamber, first perforated stainless plate, first catalyst-filled chamber, second perforated stainless plate, stirring means, third perforated stainless plate, magnet chamber, third expanded metal plate, confluent admixture Chamber, fourth perforated stainless steel plate, second catalyst filled chamber, fifth perforated stainless steel plate, third rectifying chamber, sixth perforated stainless steel plate, third catalyst filled chamber, fourth expanded Since the metal plates are sequentially arranged, the effects described in the above claims can be achieved most effectively.

According to the fifth aspect of the invention, at least one of the catalyst-filled chambers is composed of three-wave metamorphic rocks or ore grains obtained by pulverizing mudstone chlorite schist. The decomposing action (purifying action) and the reducing action (deterioration preventing action) of the oxidized lubricating oil can be maintained for a long period of time. In the invention of claim 6, since the average particle size of the ore particles is in the range of 20 to 40 mm, by appropriately setting the particle size distribution, there is no problem such as clogging and clogging of the flow path. It is possible to provide a simple filtration device. In the invention of claim 7, since the average size of the particle diameters of the ore grains forming each of the catalyst-filled chambers gradually decreases from the upstream side to the downstream side, there is no problem such as clogging or blockage of the flow path. It is possible to provide an efficient filtration device. In the invention of claim 8, since the average particle size of the ore particles forming the catalyst filling chamber located on the upstream side is smaller than the average particle size of the ore particles forming the catalyst filling chamber located on the downstream side, It is possible to provide an efficient filtration device that does not have problems such as clogging and blockage of the flow path. In the invention of claim 9, the catalyst packing chambers are sequentially arranged in three chambers from the upstream side to the downstream side, and the average particle diameter of the ore grains constituting the most upstream catalyst packing chamber is 30 to 40 mm, Since the average particle size of the ore grains forming the catalyst filling chamber located at the bottom and the catalyst filling chamber at the most downstream is 20 to 30 mm, efficient filtration without problems such as clogging and blockage of the flow path It becomes possible to provide a device. In the invention of claim 10, since the rectifying chamber in which the ore particles are not filled is provided between at least two of the catalyst filling chambers, the liquid immediately after exiting the catalyst filling chamber on the upstream side is rectified, and The filtration efficiency in the catalyst-filled chamber can be improved.

[Brief description of drawings]

FIG. 1 is an overall schematic diagram showing a configuration of an internal combustion engine provided with a filtering device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a filtration device according to one embodiment of the present invention.

3 (a), (b) and (c) are diagrams showing a configuration example of a perforated partition plate.

FIG. 4 is a diagram showing an example of a stirring unit.

FIG. 5 is a diagram showing an arrangement example of permanent magnets.

[Explanation of symbols]

1 Internal Combustion Engine, 1a Lubricating Oil Introducing Part, 1b Lubricating Oil Discharging Part, 2 Connection Pipe, 3 Cooling Device, 4 Pipe, 4a Introducing Pipe, 4b Exhaust Pipe, 5 Pump, 6 Filtration Device, 11
Metal outer tube, 12 partition plates with holes, 13 straightening chamber, 14, 1
4A-14C catalyst filling chamber, 15 stirring means, 16 magnet chamber, 17 confluent mixing chamber, 21, 21A-21D expanded metal plate, 22, 22A-22E perforated stainless steel plate, 23 perforated stainless steel plate, 24 ore grain, 30
Permanent magnet (flight magnet)

─────────────────────────────────────────────────── ─── Continued Front Page (51) Int.Cl. ⁷ Identification Code FI Theme Coat (Reference) B01D 35/02 E

Claims (10)

[Claims] 1. A column type filtration device detachably disposed between an introduction pipe for introducing a fluid to be filtered and a discharge pipe for discharging a filtered fluid, wherein a metal outer pipe extending linearly. A perforated partition plate arranged in any order from the upstream side to the downstream side in the metal outer tube,
Rectifying chamber, catalyst filling chamber, stirring means, magnet chamber, confluence mixing chamber,
A liquid filtering device comprising: 2. The liquid filtering device according to claim 1, wherein the perforated partition plate is composed of an expanded metal plate and / or a perforated stainless steel plate. 3. The liquid filtering apparatus according to claim 1, wherein at least one catalyst filling chamber is arranged on each of the upstream side and the downstream side of the stirring means. 4. A first expanded metal plate, a first rectifying chamber, from the upstream side to the downstream side in the metal outer tube,
A second expanded metal plate, a second rectifying chamber, a first perforated stainless plate, a first catalyst filling chamber, a second perforated stainless plate, a stirring means, a third perforated stainless plate, a magnet chamber,
Third expanded metal plate, confluence mixing chamber, fourth perforated stainless plate, second catalyst filling chamber, fifth perforated stainless plate, third rectifying chamber, sixth perforated stainless plate, third 3. The liquid filtering device according to claim 1, wherein the catalyst filling chamber and the fourth expanded metal plate are sequentially arranged. 5. The at least one of the catalyst-filled chambers is composed of ore grains obtained by crushing tri-wave metamorphic rocks or chlorite schist which is mudstone.
The liquid filtering device according to 3 or 4. 6. The average particle size of the ore grains is 20 to 40 m.
The liquid filtering device according to claim 5, wherein the liquid filtering device has a range of m. 7. The liquid filtering apparatus according to claim 5, wherein the average size of the ore grains forming each catalyst filling chamber gradually decreases from the upstream side to the downstream side. . 8. The average particle size of the ore grains forming the catalyst packing chamber located on the upstream side is smaller than the average particle size of the ore grains forming the catalyst packing chamber located on the downstream side. The liquid filtering apparatus according to claim 5, 6 or 7. 9. The catalyst packing chambers are sequentially arranged in three chambers from the upstream side to the downstream side, and the average particle diameter of the ore grains constituting the most upstream catalyst packing chamber is 30 to 40 mm, which is located in the middle. 9. The liquid filtering apparatus according to claim 8, wherein the ore grains forming the catalyst filling chamber and the downstreammost catalyst filling chamber each have an average particle size of 20 to 30 mm. 10. The liquid filtering apparatus according to claim 3, wherein a rectifying chamber not filled with the ore grains is provided between at least two catalyst filling chambers.