JPH10122487A - Oil purifying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the service life of oil by purifying oil and prevent degradation of the oil itself with a simple device. SOLUTION: The lubrication cycle is formed by feeding the oil from an oil reservoir 1 to an engine E through a suction pipe 3, a circulation pump 2, and a circulation going pipe 4 to perform the lubrication effect, and then, returning the oil from the circulation going pipe 5 to the oil reservoir 1. After mixed foreign matter is removed by a filter 6, the oil branched by a branched pipe 41 is fed to an oil purifying device 8 from a connection pipe 7 to restore degradation by the heat or the like in the property of the oil. Because the oil is fed to the oil purifying device 8 after the foreign matter is removed by the filter 6, the foreign matter is prevented from flowing in the oil purifying device 8, and the oil purifying device 8 is prevented from being clogged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a lubricating oil, a cutting oil,
Alternatively, the present invention relates to an oil cleaning device that can clean oil such as edible oil and extend the life of the oil.

[0002]

2. Description of the Related Art Conventionally, in a lubrication system for a combustion engine such as an internal combustion engine or an external combustion engine, lubricating oil circulated in the combustion engine to ensure lubrication is provided in a circulation path or a filter installed separately. To remove foreign matter in the lubricating oil and keep the lubricating oil clean.
In addition, even in shops that make tempura, fried foods, etc., by passing the edible oil through the flow path or through a separately installed filter, foreign substances in the used edible oil are removed to clean the edible oil. Keeping is done.

[0003]

However, in the lubricating oil system using the above-mentioned conventional filter, only the foreign matter in the lubricating oil is removed, and deterioration or oxidation of the lubricating oil itself due to heat or the like is prevented. However, there is a problem that the service life of the lubricating oil is shortened, and it is necessary to replace the lubricating oil at an early stage. In addition, in an edible oil system, the edible oil heated by a fryer or the like can be removed by simply passing the edible oil through a filter, but the edible oil is not oxidized by heating at all. And there is a problem that the life of the cooking oil is shortened.

It is an object of the present invention to provide a simple device for lubricating oil,
An object of the present invention is to provide an oil purifying apparatus that can clean oil such as cutting oil or edible oil, prevent deterioration or oxidation of the oil itself, and extend the life of the oil.

[0005]

Means for Solving the Problems To achieve the above object, an oil cleaning apparatus according to the present invention comprises a porous maltstone sponge formed of maltstone or mineral-containing natural stone powder,
One or two or more stages are arranged in a casing to form an oil purifying device, and the oil is circulated in the casing so that the oil comes into contact with the maltstone sponge, thereby suppressing the oxidation of the oil. Of the oil can be suppressed and the life of the oil can be prolonged. Further, in the lubricating oil circuit of the combustion engine, an oil cleaning device having a porous maltstone sponge formed of barley stone or mineral-containing natural stone powder is provided, and the circulating lubricating oil is brought into contact with the maltstone sponge. By suppressing the oxidation of the lubricating oil, the mineral is dissolved out of the barite or mineral-containing natural stone in the lubricating oil, and the properties of the lubricating oil changed by the heat of the engine or the like are restored to the state before the deterioration. Can be. Further, in the lubricating oil circuit of the combustion engine, by disposing an oil purifying device having a maltstone sponge immediately after the filter, the foreign matter is removed by the filter and then sent to the oil purifying device. Foreign matter can be prevented from flowing into the oil purifier, and clogging of the oil cleaning device can be prevented. Further, an oil cleaning device having a porous maltstone sponge formed of barley stone or mineral-containing natural stone powder is provided in a flow path for circulating the edible oil, and the circulating edible oil is brought into contact with the maltstone sponge. By suppressing the oxidation of edible oil, the mineral is dissolved out of the barley stone or the mineral-containing natural stone in the edible oil, and the properties of the edible oil changed by heat of the engine or the like are restored to the state before the deterioration. be able to. Further, by disposing an oil purifying device having a barley stone sponge immediately after the filter in the flow path for circulating the cooking oil, the foreign matter is removed by the filter and then sent to the oil purifying device. Foreign matter can be prevented from flowing into the device, and clogging of the oil cleaning device can be prevented.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, an example of a lubrication system to which the present invention is applied will be described. An oil reservoir (lubricating oil pan) 1 having an upper opening and storing lubricating oil, and an oil reservoir 1
A suction pipe 3 having one end inserted therein, a circulating pump 2 such as a gear pump having the other end of the suction pipe 3 connected to the suction side,
A circulation outgoing pipe 4 connected to the discharge side of the circulation pump 2, an engine (combustion engine) E having the other end of the circulation outgoing pipe 4 connected to the inlet side, and a circulation return pipe connected to the outlet side of the engine E 5
A branch pipe 41 and a bypass pipe 42 branched from the circulation forward pipe 4, a filter 6 having the branch pipe 41 connected to the inlet side, and a connecting pipe 7 having one end connected to the outlet side of the filter 6, An oil purifier 8 having an inlet connected to the other end of the connecting pipe 7, a reflux pipe 9 having one end connected to the outlet of the oil purifier 8 and having the other end opened above the oil reservoir 1, and a bypass pipe The bypass valve 10 is connected to the inlet side, and one end is connected to the outlet side of the bypass valve 10 and the other end is connected to the oil reservoir 1.
And a bypass reflux pipe 11 opened upward.

With this configuration, the lubricating oil is sent from the oil reservoir 1 to the engine E via the suction pipe 3, the circulation pump 2, and the circulation forward pipe 4, and is sent to various parts in the engine E to perform a lubrication operation. The lubricating oil is returned from the circulation return pipe 5 to the oil reservoir 1 to form a lubrication cycle, and the lubricating oil branched by the branch pipe 41 is cleaned of oil from the connecting pipe 7 after foreign substances mixed in by the filter 6 are removed. The lubricating oil is sent to the device 8 to recover the property of the lubricating oil due to heat or the like. After the foreign matter is removed by the filter 6, the foreign matter is sent to the oil cleaning device 8, so that the foreign material can be prevented from flowing into the oil cleaning device 8, and the oil cleaning device 8 can be prevented from being clogged. The lubricating oil whose deterioration, that is, oxidation has been recovered in the oil cleaning device 8, returns from the return pipe 9 to the oil reservoir 1. The engine E
When the pressure of the lubricating oil rises due to the clogging of foreign substances in the lubricating oil purification path to the filter 6 and the oil purifying device 8 due to foreign matter, the bypass valve 10 The lubricating oil flows down to the oil reservoir 1 to release the pressure.

As shown in FIG. 2, for example, the oil cleaning device 8 includes a cylindrical casing 80 having both open ends, an inlet cover plate 81 covering one end of the casing 80, and a second end opening. The outlet cover plate 82 to be covered, the inflow hole 70 formed in the inlet cover plate 81, the outflow hole 90 formed in the outlet cover plate 82, and the flow path from the inflow hole 70 to the outflow hole 90. A plurality of support plates 83 formed of a perforated plate, a net-like body, and the like provided in the casing 80 so as to be substantially orthogonal to each other, and a maltstone sponge 84 supported by the support plates 83 are provided.

Here, the maltstone sponge is prepared by adding an organic material powder, an inorganic material powder and water to a fine powder of maltstone or mineral-containing natural stone and mixing them sufficiently, and then mixing them in a predetermined mold (die, resin mold, etc.). ) And pressurized to form into a predetermined shape, dried in the air, and then at a predetermined temperature (for example, 80
It shows a porous fired body obtained by firing at 0 ° C. or higher. Note that the organic material powder is one or more powders selected from wood flour, rice husk, rice bran, okara powder, bamboo charcoal, charcoal, and the like, and silicon dioxide powder is used as the inorganic material powder.

[0010] According to the above configuration, by using a maltstone sponge for the oil cleaning device, minerals are dissolved from the maltstone or the mineral-containing natural stone into the lubricating oil,
The property of the lubricating oil changed by the heat of the engine or the like can be restored to the state before the deterioration. The lubricating oil to be purified is generally heated to a high temperature and has a high fluidity, so that the lubricating oil can be smoothly circulated through the internal flow path of the porous malted stone sponge.

Referring to FIG. 3, an embodiment in which the present invention is applied to edible oil will be described. An edible oil cleaning system comprises a heating tank 20 such as a fryer, a burner 21 for heating the heating tank 20, Suction pipe 22 with one end inserted and opened
A circulation pump 23 connected to the other end of the suction pipe 22;
One end is connected to the filter 24 connected to the circulation pump 23 by the connecting pipes 26 and 27 and the oil purifier 25 disposed downstream of the filter 24, and one end is connected to the outlet side of the oil purifier 25 and the other end is heated. A reflux pipe 28 is opened in the tank 20, and the cooking oil 29 is stored in the heating tank 20. The arrows in the figure indicate the direction of the flow of the edible oil, and the oil cleaning device 25 uses the one illustrated in FIG.

With this configuration, the edible oil is pumped from the heating tank 20 through the suction pipe 22 by the circulation pump 23, and after the foreign matter mixed in by the filter 24 is removed, the connection oil 27 is removed.
Is sent to the oil purifier 25 to recover the deterioration of the properties of the edible oil due to heat or the like. Since the edible oil is sent to the oil cleaning device 25 after the foreign material is removed by the filter 24, the foreign material is prevented from flowing into the oil cleaning device 25, and the oil cleaning device 25 is prevented from being clogged. it can. The cooking oil whose deterioration, that is, oxidation has been recovered in the oil cleaning device 25, is returned to the heating tank 20 from the reflux pipe 28.

Referring to FIG. 4, a different embodiment to which the present invention is applied will be described.
0, a connecting pipe 34 having one end connected to the lower end opening or outlet side of the hopper 30, a filter 31 having an inlet side connected to the other end of the connecting pipe 34, and a connecting section having one end connected to the outlet side of the filter 31. A pipe 35, an oil cleaning device 32 (see FIG. 2 and description thereof) having an inlet connected to the other end of the connecting pipe 35, and a discharge pipe 36 having one end connected to the outlet of the oil cleaning device 32. The other end of the discharge pipe 36 is provided with an oil storage tank 33 that is inserted and opened therein, and the oil 37 is stored in the oil storage tank 33.

According to this configuration, the oil to be purified (for example, lubricating oil, cutting oil, edible oil, etc.) is caused to flow into the hopper 30, foreign matter in the oil is removed by the filter 31, and the oil is cleaned by the oil cleaning device 32. Suppresses oil oxidation.

[0015]

[Table 1]

Unused oil Example 1 Example 2 Acid value (degree of oxidation) 0.03 0.05 0.10 According to the results in Table 1, the acid value (degree of oxidation) is a value indicating the degree of progress of oxidation of edible oil. In this case, the larger the value, the more the oxidation is progressing. Therefore, it was found that the edible oil of the example was considerably suppressed from oxidation (deterioration).
Also, as in Example 1, it was found that the use of a combination of filters can significantly suppress oil oxidation.

[0016]

Since the present invention is configured as described above, it has the following effects. One or two or more stages of porous malt stone sponge formed of barley stone or mineral-containing natural stone powder are arranged in a casing to form an oil purifier, and the oil is circulated through the casing to remove the oil. By contacting the barley stone sponge to suppress oxidation of the oil, deterioration due to oxidation of the oil can be suppressed, and the life of the oil can be prolonged. Further, in the lubricating oil circuit of the combustion engine, an oil cleaning device having a porous maltstone sponge formed of barley stone or mineral-containing natural stone powder is provided, and the circulating lubricating oil is brought into contact with the maltstone sponge. By suppressing the oxidation of the lubricating oil, the mineral is dissolved out of the barite or mineral-containing natural stone in the lubricating oil, and the properties of the lubricating oil changed by the heat of the engine or the like are restored to the state before the deterioration. Can be. In the lubricating oil circuit of a combustion engine,
By disposing an oil purifier having a malt stone sponge immediately after the filter, the foreign matter is removed by the filter and then sent to the oil purifier, so that foreign matter is prevented from flowing into the oil purifier, Clogging of the oil cleaning device can be prevented. Further, an oil cleaning device having a porous maltstone sponge formed of barley stone or mineral-containing natural stone powder is provided in a flow path for circulating the edible oil, and the circulating edible oil is brought into contact with the maltstone sponge. By suppressing the oxidation of edible oil, the mineral is dissolved out of the barley stone or the mineral-containing natural stone in the edible oil, and the properties of the edible oil changed by heat of the engine or the like are restored to the state before the deterioration. be able to. Further, by disposing an oil purifying device having a barley stone sponge immediately after the filter in the flow path for circulating the cooking oil, the foreign matter is removed by the filter and then sent to the oil purifying device. Foreign matter can be prevented from flowing into the device, and clogging of the oil cleaning device can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of a lubricating oil circuit to which the present invention is applied.

FIG. 2 is a sectional view of the oil cleaning device of the present invention.

FIG. 3 is a schematic explanatory view showing an example of an edible oil circuit to which the present invention is applied.

FIG. 4 is a schematic explanatory view showing another example of the edible oil recovery device to which the present invention is applied.

[Explanation of symbols]

1 oil sump, 2,23 circulation pump, 6,24,31 filter 8,25,32 oil purifier, 20 heating tank, 3
0 Hopper E engine

Claims (5)

[Claims] 1. A porous maltstone sponge formed of maltstone or mineral-containing natural stone powder is placed in a casing in a form of 1 ml.
A stage or two or more stages are arranged to form an oil purifier,
An oil purifying apparatus characterized in that oil is circulated in a casing and the oil is brought into contact with the barley stone sponge to suppress oxidation of the oil. 2. An oil purifier having a porous maltstone sponge formed of maltstone or mineral-containing natural stone powder is provided in a lubricating oil circuit of a combustion engine, and circulating lubricating oil is supplied to the maltstone sponge. 2. The oil cleaning device according to claim 1, wherein the oil cleaning device is brought into contact with the lubricating oil to suppress oxidation. 3. The oil purifying apparatus according to claim 2, wherein an oil purifying apparatus having a maltstone sponge is provided immediately after the filter in the lubricating oil circuit of the combustion engine. 4. An oil purifying device having a porous maltstone sponge formed of maltstone or mineral-containing natural stone powder is provided in a flow path for circulating the edible oil, and the circulating edible oil is supplied to the maltstone sponge. The oil purifying apparatus according to claim 1, wherein the oxidizing oil is suppressed by contacting the oil. 5. The oil purifying apparatus according to claim 4, wherein an oil purifying apparatus having a maltstone sponge is disposed immediately after the filter in a flow path for circulating the cooking oil.