JP3206760U - Wet or liquid fluid minute magnetic foreign matter removing device - Google Patents

Abstract

An apparatus for removing fine magnetic foreign matter of a wet or liquid fluid that removes magnetic foreign matters and fine magnetic foreign matters contained in the fluid from the fluid and retains them in the device. A bar magnet 3 inserted in close contact with an outer pipe 2 is inserted into a case 1 having an elongated pipe portion having an inlet portion and an outlet portion of a fluid. A protrusion 4 having a protrusion 4a at the top is formed. A minute foreign substance in the fluid in contact with the vertical surface or the like of the protrusion 4 stays, and a minute gap 7 is formed between the apex of the protrusion 4 and the inner surface of the case 1 and an inclined surface is formed. When the fluid passes through this minute gap, the vortex 8 and dispersion are generated and the contained magnetic foreign material 9 is separated, and this magnetic foreign material 9 is adsorbed to the base magnetic pole of the projection 4 of the outer pipe 2. Separated. [Selection] Figure 6

Description

  The present invention is a wet or liquid fluid micromagnetism that can remove almost 100% of the fine magnetic foreign matter that could not be completely removed by using a magnet having a strong magnetic force and other means in the prior art. The present invention relates to a foreign matter removing apparatus.

  Conventionally, there are various types of apparatuses for removing fine magnetic foreign matters and fine foreign matters, such as “Patent Document 1” and “Non-Patent Document 1” as described in the present invention, which will be described later. Wet or liquid fluid minute magnetic foreign matter removing devices are not found in the publicly known literature.

Japanese Patent Laying-Open No. 2005-40692 (FIG. 1) As shown in FIG.

  The “filtering device having a fixed foreign matter removing function” of “Japanese Patent Application Laid-Open No. 2005-40692” of “Patent Document 1” removes fine foreign matters in a fluid and is similar in appearance to the present invention. However, it is different from the present invention in the basic structure that does not use magnetic force but has a filter function.

  "Non-patent document 1" has a structure shown in FIG. 8 and is a case in which a bar magnet 3 is inserted into a case 1 through a minute gap. In this structure, foreign matter adsorbed on the bent bar magnet side is fluid. There is a problem that it is peeled off and flows out along with the flow of water, and it is impossible to remove minute foreign matters.

In general, magnetic foreign matter has a property that it becomes difficult to adsorb because it becomes weaker as it gets smaller. Further, there is a problem that minute foreign matter having weak magnetism is peeled off by the fluid even if the magnet is attracted.
In addition, the higher the flow rate of the fluid and the higher the viscosity, the stronger the phenomenon described above.

  Therefore, as will be described in detail later, the present invention reduces the clearance between the protrusions and the case, and reduces the foreign matter by retaining the foreign matter in the magnetic field by making the foreign matter stay and the foreign matter easier to disperse. The present invention has been devised as a foreign matter removing apparatus for the purpose of accelerating the problem and solving the above-mentioned problems.

  The present invention has been developed to achieve the above object, and the invention of claim 1 is a foreign substance removing apparatus capable of removing minute magnetic foreign substances of several hundred nm to several tens of micrometers or less in a fluid containing magnetic foreign substances. The apparatus includes a case having a passage through which the fluid passes, an inlet portion and an outlet portion thereof, and a plurality of protrusions which are inserted into the case and provided on the outer surface, and immediately before or immediately before the protrusions. An outer pipe (sheath tube) having a bar magnet with a magnetic pole arranged so as to be arranged in the vicinity of the magnetic pole, or a protrusion with a plurality of protrusions on the outer surface immediately after or near the magnetic pole. The protrusion has a vertical surface or a substantially vertical surface formed to prevent the minute magnetic foreign matter adsorbed on the magnetic pole from being separated by the fluid. And when the fluid passes through the protrusion, the minute magnetic foreign matter in the fluid is easily dispersed so that the fine magnetic foreign matter is easily attracted to the next magnetic pole. A minute gap is formed between the apex of the protrusion and the inner surface of the case so that the minute magnetic foreign matter is easily attracted to the magnetic pole. It is characterized by becoming.

According to the wet magnetic or liquid fluid minute magnetic foreign matter removing device according to claim 1 of the present invention, an outer pipe or bar magnet provided with a plurality of protrusions is disposed in a case having an inlet portion and an outlet portion. A vertical surface or a substantially vertical surface (referred to as a vertical surface, etc.) is formed on the front side of the protrusion to promote the residence time of the fluid, and an inclined surface is formed on the back side to promote the dispersion of foreign materials and remove foreign materials. In addition, the flow rate of the fluid is limited by minimizing the clearance with the case, and the vertical surface is disposed immediately after or near the magnetic pole to prevent the adhering foreign matter from being peeled off. Can be raised.
Moreover, the effect of the foreign material cleaning work can be measured by providing the structure of the outer pipe.

The shaft sectional view showing the whole structure of the present invention. The axial sectional view which shows the structure of the case of the fine magnetic foreign material removal apparatus of the wet or liquid fluid of this invention. The top view which shows the outer pipe of the micro magnetic foreign material removal apparatus of the wet or liquid fluid of this invention. The top view which shows the bar magnet inserted in an outer pipe. The fragmentary sectional view which shows the shape of the projection part currently formed in the outer periphery of an outer pipe, and its arrangement | positioning. FIG. 4 is a cross-sectional view for explaining the foreign matter removing action of the fine magnetic foreign matter removing device of the wet or liquid fluid according to the present invention. The fragmentary sectional view of the magnetic substance removal apparatus which has a magnet with a projection. The partial axial sectional view which shows the general | schematic structure of a nonpatent literature.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a wet magnetic or liquid fluid minute magnetic foreign matter removing apparatus according to the present invention will be described in detail below with reference to the drawings.

  As shown in FIG. 1, a wet or liquid fluid fine magnetic foreign matter removing apparatus 100 according to the present invention is not clearly shown in the drawing with an elongated case 1 and an outer pipe (sheath tube) 2 housed therein. Is composed of a bar magnet 3 and the like housed in close contact with the outer pipe 2.

  FIG. 2 shows the overall structure of the case 1. The case 1 has an elongated pipe portion 1a, an inlet portion 1b through which a fluid (not shown) enters and exits, and an outlet portion 1c. The pipe portion 1a has an opening 1d on one side (left side in the drawing). .

  As shown in FIG. 3, the outer pipe 2 is an elongated pipe inserted through the opening 1d of the case 1, and a projection 4 is formed in a ring shape on the shaft 2a. Many are arranged at equal intervals. The outer pipe 2 is closed at one end (right side in the figure) and open at the other end (left side in the figure). The outer pipe 2 is provided with a flange 2b so as to be inserted into a predetermined position in the case 1, and at the other end. A flange 2c for determining the insertion position of the bar magnet of FIG. 4 housed inside is formed.

  FIG. 4 shows the bar magnet 3 inserted into the outer pipe 2 of FIG. Although this bar magnet 3 is omitted in the drawing, the bar magnet 3 is formed by alternately arranging magnetic poles 5 (FIG. 6) and magnets 6, and has a flange 3a and a gripping portion 3b for determining an insertion position into the outer pipe 2. Consists of things.

  FIG. 5 is an enlarged view of a portion A indicated by a circle in FIG. 1, and shows an embodiment of the structure of the main part of the present invention. As shown in the figure, a plurality of protrusions 4 having protrusions 4a protruding at an acute angle at the top of the outer pipe 2 are arranged at equal intervals. The protrusion 4 has a shape such as a substantially vertical triangle having a vertical surface or the like on the front side in the flow direction of the fluid and an inclined surface on the rear side. A minute gap 7 is formed between the projection 4 a and the inner surface of the case 1. Further, the bar magnet 3 shown in FIG. 4 is closely inserted into the outer pipe 2.

FIG. 6 shows the operation of the present invention. The fluid containing the magnetic foreign matter introduced into the case 1 by the inlet 1b first hits a vertical surface or the like, and a stay 11 is generated as shown in FIG. Next, the fluid passes through the minute gap 7 between the protrusion 4a and the case. At this time, a vortex 8 is generated as shown in the figure. Due to the generation of the vortex 8 and the inclined surface of the protrusion 4, the magnetic foreign matter 9 in the fluid body is dispersed and hits the vertical surface of the next protrusion 4 and is attracted to the magnetic pole 5. Due to this phenomenon, the magnetic foreign matter 9 of the wet or liquid fluid is removed. The dispersed magnetic foreign matter 9 is adsorbed to the root as shown in the figure. Since the dispersed magnetic foreign matter 9 has the magnetic pole 5 disposed below the protrusion 4, it is strongly adsorbed to the outer pipe 2 side and is not peeled off. As a result, the fluid exits with the magnetic foreign matter 9 separated. It will be discharged from the part 1c.
As a result, the minute magnetic foreign matter 9 that could not be removed by the prior art is removed, and a much smaller magnetic foreign matter 9 is also removed from the fluid.
As described above, according to the fine magnetic foreign matter removing apparatus 100 of the wet or liquid fluid of the present invention, it is possible to obtain a great effect that enables the removal of the magnetic foreign matter 9 not present in the prior art.

FIG. 7 shows a partial cross-sectional view of a wet or liquid fluid minute magnetic foreign matter removing device that is slightly different from the first embodiment.
In this embodiment, the protrusion 4 is not provided on the outer pipe 2 as in the first embodiment, but the protrusion 4 is formed on the magnet itself. That is, the magnet 10 with protrusions is provided. This protruding magnet 10 also has a high magnetic force similar to the magnetic force of the bar magnet 3 described above.
By arranging the projection 4a of the projection 4 of the magnet with projection 10 on the inner surface of the case 1 via the minute gap 7, it is possible to obtain substantially the same effect as in the first embodiment. Note that the minute gap is, for example, about 1 mm. In this case, as shown in the figure, a magnetic pole 5 is also provided, and this bar magnet should be called a bar magnet with protrusions.

  The present invention is composed of the above contents, but the contents are not limited to the above contents, and those of the same technical category are of course applied.

  The present invention has an effect of removing minute foreign substances from all of the fluid containing magnetic foreign substances, has a simple structure, has a wide range of applications, and is extremely useful.

DESCRIPTION OF SYMBOLS 1 Case 1a Pipe part 1b Inlet part 1c Outlet part 1d Opening port 2 Outer pipe (sheath tube)
2a Shaft 2b Flange 2c Flange 3 Bar Magnet 3a Flange 3b Gripping Part 4 Protrusion 4a Protrusion 5 Magnetic Pole 6 Magnet 7 Micro Gap 8 Eddy Current 9 Magnetic Foreign Object 10 Magnet with Protrusion 11 Retention 100 Micro Magnetic Foreign Object Removal of Wet or Liquid Fluid apparatus

Claims (1)

  A foreign matter removing device capable of removing minute magnetic foreign matters of several hundred nm to several tens of micrometers or less in a fluid containing magnetic foreign matter, the device having a passage through which the fluid passes, an inlet portion and an outlet portion thereof And an outer pipe (sheath tube) having a bar magnet that is inserted into the case and has a plurality of protrusions on the outer surface and a magnetic pole configured to be disposed immediately before or in the vicinity of the protrusion. The magnetic pole is provided with a bar magnet with a protrusion immediately after or in the vicinity of the magnetic pole and provided with a plurality of protrusions on the outer surface, and the protrusion has the minute magnetic foreign matter adsorbed on the magnetic pole. When the fluid passes through the protrusion, the minute magnetic difference is formed on the front side formed of a vertical surface or a substantially vertical surface formed to prevent separation by the fluid. So that the minute magnetic foreign matter in the fluid is easily dispersed, and the rear surface is formed of an inclined surface that is formed to facilitate the dispersion of the minute magnetic foreign matter in the fluid. In addition, the apparatus for removing minute magnetic foreign matter of a wet or liquid fluid is characterized in that a minute gap is formed between the apex of the protrusion and the inner surface of the case.

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