KR100860309B1 - Apparatus for automatically supplying oil with recycling as purging nitrogen gas - Google Patents

Abstract

The present invention relates to an automatic lubrication device that is regenerated by a nitrogen purge that removes impurities contained in oil supplied for lubrication and cooling to a bearing part of a driving device and supplies clean oil to a bearing. To this end, the present invention includes a filter element fixed to the inner middle portion of the cylindrical body; A pipe-shaped magnet installed perpendicular to the center of the filter element; A nitrogen purge head inserted into the magnet; A disc cap fastened to the upper portion of the body; A magnetic switch fixed to a center portion of the disc cap; An oil inlet valve and a pressure vent valve installed at an upper left side of the body; An oil outlet valve installed at a lower right side of the body; A check valve and a nitrogen purge control valve installed at a gas line connected to a lower portion of the nitrogen purge head; The first and second automatic lubrication device consisting of a manual valve and a glass filter installed in the outlet formed in the left side in the middle of the body provides a pair of automatic lubrication device regenerated by nitrogen purge, characterized in that the pair is installed in the oil supply line do. As described above, the present invention has an effect of automatically supplying an appropriate amount of clean oil to the bearing part by automatically changing the oil supply device and regenerating the filter element of the used oil supply device using nitrogen gas.

Bearing, oil, nitrogen purge, automatic lubrication device, filter element, magnet

Description

Automatic Refueling Equipment Regenerated with Nitrogen Purge {APPARATUS FOR AUTOMATICALLY SUPPLYING OIL WITH RECYCLING AS PURGING NITROGEN GAS}

1 is a state diagram of a conventional oil supply apparatus installed in an oil supply line;

2 is an exploded perspective view showing the configuration of a conventional oil supply apparatus;

3 is a perspective view showing an automatic refueling device that is regenerated with a nitrogen purge according to the present invention;

4 is an exploded perspective view of an automatic refueling apparatus recycled to a nitrogen purge according to the present invention;

Figure 5 is a state diagram showing a state in which the automatic refueling device regenerated by nitrogen purge according to the present invention installed in the refueling line;

Figure 6 is a flow chart of the operation of the automatic refueling device recycled to the nitrogen purge according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

100-1: Body 100-5: Magnet

100-6: filter element 100-7: nitrogen purge head
100-13: Oil outlet valve 100-14: Oil inlet valve

100-18: Pressure vent valve 100A: 1st automatic lubrication device
100B: 2nd automatic lubrication device

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The present invention relates to an automatic lubrication device regenerated by nitrogen purge, and more particularly, to remove impurities contained in the oil supplied for lubricating and cooling the bearing parts of the compressor and the accelerator to supply clean oil to the bearing. The present invention relates to an automatic refueling device that is regenerated with a nitrogen purge.

Generally, as illustrated in FIGS. 1 and 2, in the conventional oil lubrication device, the oil pump 2 pumps oil in the oil tank 1 so as to cool the oil and the coolant in the oil cooler. Heat exchange to reduce the temperature of the oil, remove impurities contained in the oil from the lubricator (5A) in use according to the position of the manual three-way valve (4-1, 4-2), and then clean the oil It is supplied to the shaft bearing (Bearing) 6-1 of the box (Gear Box) 6 to lubricate and cool the bearing.

However, when the conventional oil supply device 5A is used for a long time, foreign substances contained in the oil are attached to the filter element 16 to block the flow of oil, thereby preventing the oil from flowing through the shaft bearing of the gear box 6. 6-1), so that the bearing is worn and the shaft 7 cannot be rotated, so that a driving device such as a compressor must be stopped.

In order to prevent this, the oil supply device 5B waiting for use is used by switching the flow path between the manual three-way valves 4-1 and 4-2 (10 → 10-1). The oil supply device 5A used above is to disassemble the cap 12 and then to disassemble the filter element 16 installed inside the body 14, to replace or to clean and reassemble the filter element 16 so that it remains in standby. do.

However, the conventional technique is difficult to detect the impurity adhesion state of the filter element 16, and the replacement of the oil supply devices 5A and 5B is delayed because the oil supply devices 5A and 5B must be manually replaced by the driver. In case of loss, the driving device such as the compressor is stopped, resulting in a decrease in productivity. In addition, the filter element 16 needs to be directly disassembled by the operator to remove foreign substances, thereby increasing the workload and causing environmental pollution.

In order to solve the above problems, the present invention automatically detects the blockage of the filter element generated during the continuous operation of the oil lubrication device by automatically detecting the air pressure of the introduced nitrogen gas to automatically replace the lubrication device, replaced lubrication device It is an object of the present invention to provide an automatic lubrication device which automatically regenerates a nitrogen purge that can automatically remove foreign substances in the filter element of the filter element and always supply clean oil to a driving part such as a bearing.

In order to achieve the above object, the present invention includes a filter element fixed to the inner portion of the cylindrical body; A pipe-shaped magnet installed perpendicular to the center of the filter element; A nitrogen purge head inserted into the magnet; A disc cap fastened to the upper portion of the body; A magnetic switch fixed to a center portion of the disc cap; An oil inlet valve and a pressure vent valve installed at an upper left side of the body; An oil outlet valve installed at a lower right side of the body; A check valve and a nitrogen purge control valve installed at a gas line connected to a lower portion of the nitrogen purge head; The first and second automatic lubrication device consisting of a manual valve and a glass filter installed in the outlet formed in the left side in the middle of the body provides a pair of automatic lubrication device regenerated by nitrogen purge, characterized in that the pair is installed in the oil supply line Done.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view showing an automatic refueling device to be regenerated with a nitrogen purge according to the present invention, Figure 4 is an exploded perspective view of an automatic refueling device to be regenerated with a nitrogen purge according to the present invention.

The present invention has a spring (100-3) and a guide (100-4) in the middle portion of the cylindrical body (100-1) inside the filter element (100-6) is fixed, the filter element (100-6) A pipe-shaped magnet (100-5) is installed vertically in the center portion, the nitrogen purge head (100-7) is fitted to the pipe (100-7) in the form of fitting the pipe to the magnet (100-5), the body ( The disc cap 100-2 is fixed to the upper portion of the disc 100-1 by a bolt, the magnetic switch 100-10 is fixed to the upper center portion of the disc cap 100-2, and the body 100 -1) The upper left side has an oil inlet valve 100-14 and a pressure vent valve 100-18, and the lower right side of the body 100-1 has an oil outlet valve. Valve (100-13) and the discharge pressure transmitter (Transmitter; 100-16), the pressure holding valve (Press Balance V) on the upper right side of the body (100-1) alve; 100-17) and inlet transmitter 100-15.

In addition, a check valve 100-8 is connected to a gas line 100-25 connected to a lower portion of the nitrogen purge head 100-7 that is vertically fixed in a cylindrical shape at the center of the body 100-1. And nitrogen purge control valve (N₂Purge Control Valve; 100-9) is installed, the manual valve (Valve) and the glass filter (Glass Filter) in the outlet (100-21) formed in the left side in the middle of the body (100-1) 100-12) and a programmed PLC (not shown).

Hereinafter, the operation of the present invention will be described in detail.

5 is a state diagram showing a state in which the automatic refueling device to be regenerated with nitrogen purge according to the present invention installed in the oil supply line, Figure 6 is a flow chart of the operation of the automatic refueling device to be regenerated with nitrogen purge according to the present invention.

As shown in FIG. 5, the automatic refueling apparatus regenerated by the nitrogen purge according to the present invention is provided with a pair of first and second automatic refueling apparatuses 100A and 100B installed in the refueling line.

Referring to the operation of the present invention step by step based on the installation state diagram of FIG. 5 and the operation flowchart shown in FIG. 6, the first step is applied to the filter element 100A-6 of the first automatic lubrication device 100A. When impurities are attached, the pressure difference between the pressure transmitter 100A-15 installed on the upper part of the body 100A-1 and the pressure transmitter 100A-16 installed on the lower part is calculated by a PLC (not shown), and becomes greater than or equal to the set value. , The second automatic lubrication device 100B waits for use in maintaining the pressure, and the oil inlet valve 100B-14 and the oil outlet valve 100B-13 are opened, and the pressure maintaining valve 100B-17 is opened. And vent valve 100B-18 is closed.                     

Then, power is supplied to the magnetic switch 100B-10 of the second automatic oil supply device 100B to generate a magnetic force in the magnet 100B-5, which magnetizes the filter element 100B-6. Iron impurities are attached to the surface of the filter element 100B-6.

At this time, the rubber packing material surrounds the bottom of the filter element 100B-6 to prevent the magnetic force of the filter element 100B-6 from being transmitted to the body 100B-1. 100B-2) is made of reinforced plastic.

In addition, the filter element 100B-6 is fixed by the spring 100B-3 and the guide 100B-4.

When the above operation is completed, the automatic three-way valve (200,300) is switched to the second automatic lubrication device (100B) so that the first automatic lubrication device (100A) is ready for regeneration, the second automatic lubrication device 100B is the third step of being in use.

Regeneration of the first automatic lubrication device 100A is performed from the fourth step.

First, the power of the magnetic switch 100A-10 is cut off to remove the magnetic force of the magnet 100A-5, and at the same time, the filter element 100A-6 loses the magnetic force, and the iron impurities attached to the surface fall on the floor.

When the above operation is completed, the oil inlet valve 100A-14 and the oil outlet valve 100A-13 are closed, and the impurity purge valve 100A-11 is opened.

After the impurity purge valve 100A-11 is opened, the state becomes a fifth step, and the nitrogen purge control valve 100A-9 is opened for 60 seconds and repeated for 120 seconds. The action is performed for 1 hour by a PLC (not shown) to effectively remove impurities attached to the surface of the filter element 100A-6 due to pulsation of nitrogen gas (N₂Gas).

In this process, oil, impurities, and nitrogen gas pass through the glass filter (100A-12) along the exit port (100A-21) formed to the left side in the middle of the body (100A-1) and through the manual valve (100A-19). Flowing into the oil tank 1, impurities are filtered through the filter network of the glass filter 100A-12, and only oil and nitrogen gas enter the oil tank 1.

At this time, the manual valves 100A-19 are preferably opened in advance, and nitrogen gas is vented to the atmosphere through a breather 21 provided on the oil tank 1.

In the sixth step, the first automatic lubrication apparatus 100A, which has been regenerated through the above process, closes the nitrogen purge control valve 100A-9 and the impurity purge valve 100A-11, and opens the pressure vent valve 100A-18. do.

The action of the pressure vent valve 100A-18 remains in the first automatic lubrication device 100A when the oil is filled through the pressure retention valve 100A-17 opened in the seventh step to fill the oil discharged during regeneration. By venting nitrogen gas, the oil is well filled in the first automatic lubrication device 100A, and the second automatic lubrication using the pressure of the first automatic lubrication device 100A during the standby time in the eighth step of the standby state. It is made in the same pressure state as the device 100B.

All of these actions are automatically repeated by a programmed PLC.

However, the glass filter (100A-12, 100B-12) is the impurity purge valve (100A-11) after the inspector checks the degree of impurities filtered inside the glass filter (100A-12, 100B-12) as the use period elapses. After checking the closed state, the manual valve (100A-19) is closed, it is preferable to remove the impurities filtered inside.

As described above, the present invention automatically detects the pressure difference between the oil inlet side and the filtered out side when impurities accumulate on the filter element to automatically change the flow path of the oil supply device in use and filter in the filter used. By regenerating the element automatically using dry nitrogen gas with pulsation and regenerating it, it is possible to always supply an appropriate amount of clean oil to the bearing part and to prevent oil supply interruption caused by the failure of replacing the lubrication device at the appropriate time. It can be used continuously without stopping the compressor, which is the main equipment, to improve productivity, and to suppress the occurrence of frequent manual work for the replacement of filter elements, thereby improving the safety of the operator.

Claims (4)

A filter element 100-6 fixed to an inner middle portion of the cylindrical body 100-1; A magnet 100-5 in the form of a pipe installed perpendicular to the center of the filter element 100-6; A nitrogen purge head (100-7) inserted into the magnet (100-5); A disc cap 100-2 fastened to the upper portion of the body 100-1; A magnetic switch 100-10 fixed to a central portion of the disc cap 100-2; An oil inlet valve (100-14) and a pressure vent valve (100-18) installed at the upper left side of the body (100-1); An oil outlet valve (100-13) installed at the lower right side of the body (100-1); A check valve 100-8 and a nitrogen purge control valve 100-9 installed in the gas line 100-25 connected to the lower portion of the nitrogen purge head 100-7; First and second automatic lubrication device (100A) consisting of a manual valve (100-11) and a glass filter (100-12) installed in the outlet (100-21) formed to the left side in the middle of the body (100-1) Automatic refueling apparatus to be regenerated by nitrogen purge, characterized in that the pair is installed in the refueling line, 100B. The method of claim 1, The body 100-1 further includes a pressure transmitter 100-15 installed on the upper side to display the internal pressure, and a pressure transmitter 100-16 installed on the lower side to display the lower oil pressure. Automatic refueling unit is recycled to the nitrogen purge, characterized in that. The method of claim 1. The pipe type magnet 100-5 has a guide 100-4 fixed to an upper portion to support and fix the filter element 100-6, the guide 100-4 and the disc shaped cap ( Automatic refueling apparatus regenerated with a nitrogen purge, characterized in that it comprises a spring (100-3) inserted between the 100-2). delete

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