JPS6119809Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a device in which a magnet is attached to an oil or air pipe, and the magnet attracts and removes iron powder mixed in fluid flowing inside the pipe.

If iron powder mixed in the fluid gets caught between the valve body and the valve seat, or in the piston and cylinder sliding parts, etc., the performance and life will be significantly reduced due to wear.

Prior art and its problems A conventional iron powder removal device will be explained (see Figure 2).

Reference number 21 indicates an iron powder removal device, and plug 2
The magnet 2 is inserted into the fitting part 23 of the magnet 2 through the non-magnetic material 24.
5 is attached. This device 21 is screwed and attached to piping 26, and iron powder mixed in the fluid is attracted and removed by a magnet.

Once a certain amount of iron powder has adhered, it is necessary to remove the plug 22 and shake off the iron powder attached to the magnet 25. This is because when the amount of attached iron powder increases, it blocks the piping passage and reduces the passage area.

With the above-mentioned products, it is not possible to check the state of adhesion of iron powder from the outside, so it is difficult to know when to remove the plug and clean it, and it is necessary to check the state of adhesion periodically. The amount of iron powder mixed in the fluid is determined by the installed piping,
It is extremely difficult to set the period for periodic inspections, as they vary significantly depending on the fluid usage conditions, etc. The more frequently the inspections are performed, the more manpower is required, and if the inspections are delayed, the passage area will decrease, reducing the efficiency of the equipment used. There is a problem that makes it significantly worse.

Technical Problem The technical problem of the present invention is to be able to detect and display if a certain amount of iron powder adheres to the magnet.

Technical Means The technical means adopted by the present invention to solve the above technical problems is to place two electrodes spaced apart in the fluid piping, with at least one of the electrodes being formed by a magnet, and the two electrodes being connected via a power source and a display.

Action of technical means The operation of the above technical means is as follows.

Iron powder mixed in the fluid is attracted to electrodes made of magnets. When a certain amount of iron powder adheres, the two electrodes become electrically connected via the iron powder, and the display shows the result.

After confirming that a certain amount of iron powder has adhered, remove the blow plug and remove the adhered iron powder.

Since a screen is attached, foreign matter such as dust that cannot be picked up by the electrodes can be captured by the screen.

By removing the blow plug, foreign matter captured by the screen can be blown away, and iron powder adsorbed by the magnet can be removed at this time.

Unique effects The present invention produces the following specific effects.

By simply connecting a power source and an indicator to both electrodes, the state of adhesion of iron powder can be confirmed, and the structure is simple and can be manufactured at low cost.

When the blow plug is removed to remove iron powder adhering to the electrode, the screen can also be cleaned at the same time, resulting in more efficient work.

If a sight glass or the like is attached so that the interior can be seen through, the state of adhesion cannot be confirmed due to breakage or contamination of the glass, but with the present invention, the state of adhesion can be reliably confirmed using a display.

DESCRIPTION OF EMBODIMENTS An embodiment illustrating a specific example of the above technical means will be described (see FIG. 1).

Reference number 1 indicates an iron powder removal device, and a casing 2 forms an inlet 3, an outlet 4, and a screen storage chamber 5 inclined downward at approximately 45 degrees. The inlet 3 and the outlet 4 are formed with female threads for piping connection. A screen insertion hole 6 is drilled in the lower part of the storage chamber 5, and a cylindrical screen 7 is inserted and placed in the storage chamber 5. A retaining plug 8 is screwed into the insertion hole 6, and the screen 7 is fixed against a partition wall 9 formed at the end of the inlet 3 on the storage chamber 5 side. A blow hole 10 is drilled in the retaining plug 8 along the central axis, and a blow plug 11 is screwed into the blow hole 10 to close it. Electrodes 13 and 14 made of rod-shaped magnets are fitted in parallel to the blow plug 11 with a non-magnetic member 12 interposed therebetween, and placed in the screen 7. Conductors 15 and 16 are led out from the ends of both electrodes 13 and 14 to the outside of the casing 2, and connected to a power source via a lamp.

All iron powder contained in the fluid is absorbed and removed by electrodes 13 and 14 made of magnets, and when a certain amount of iron powder adheres, the electrodes 13 and 14 become electrically conductive through the iron powder, and a lamp 17 lights up. Ru.

In this embodiment, since the screen 7 is attached, the screen can also capture foreign substances such as dust that cannot be removed by adsorption with the electrodes 13 and 14 other than iron powder.

By removing the blow plug 11, the foreign matter captured by the screen 7 can be blown away, and the iron powder attracted by the magnets 13 and 14 can be removed at this time.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of an iron powder removing device according to the present invention, and FIG. 2 is a sectional view of an iron powder removing device showing the prior art. 13, 14... Electrodes made of magnets, 17... Lamp.

Claims (1)

[Scope of utility model registration request] A screen is placed inside the main body that forms a fluid passage, a pair of electrodes with at least one of which is made of a magnet is placed on the upstream side of the screen, and a blow plug is attached to the main body to remove dust and foreign matter from the screen. An iron powder removal device in which an electrode is attached to a blow plug, and the two electrodes are connected via a power source and a display.