KR100344758B1 - Apparatus for collecting of oil mist - Google Patents

Abstract

An oil mist collecting device for easily collecting oil mist is disclosed. The oil mist collecting device includes at least an inflow portion into which a fluid of a gas or liquid contaminated by the oil mist flows, a high voltage generating portion for generating a high voltage, and a high voltage from the high voltage generating means. Inertial charge / aggregation part for charging and agglomerating the oil mist in the contaminated fluid flowing in, and the inertial generated by forcibly rotating the fluid by receiving the fluid in which the oil mist is agglomerated by the precharge / aggregation part. An oil mist collecting unit for collecting the aggregated oil mist separated from the fluid body by an impact force, and an exhaust unit for exhausting the fluid from which the oil mist is separated by the oil mist collecting unit to the outside.

Description

Oil mist collecting device {APPARATUS FOR COLLECTING OF OIL MIST}

The present invention relates to an oil mist collecting device, and more particularly, to an oil mist collecting device for easily collecting oil mist that aggregates using a discharge provided at a high voltage.

In general, a cooling oil, a cutting oil, and the like are used in machining that performs a processing process such as cutting, grinding, and cleaning, and oil mist is generated due to the use of the cooling oil and the cutting oil. Since the oil mist is very fine, it is not easy to check whether or not it occurs. Accordingly, the operator performing the machining unconsciously sucks the oil mist. Inhalation of the oil mist not only lowers the working efficiency but also severely affects the body of the worker. In addition, the oil mist may be attached to a mechanical device or a product to affect the oil mist.

Accordingly, in the workshop where the machining is performed, a collecting device for collecting the oil mist is used. An example of the oil mist collecting device is disclosed in detail in US Pat. No. 6,007,608.

Looking at such an oil mist collecting device, there is a collecting device using a fibrous filter or a collecting device using an electrostatic precipitating.

First, a collecting device using the fibrous filter is a device that separates and collects the oil mist from the air by filtering at least the gas contaminated by the oil mist, that is, the air with the fibrous filter. The collecting device using the fibrous filter has an advantage of easy installation and low investment cost, but has the disadvantage of periodically replacing the fibrous filter. The frequent blockage of the fibrous filter makes it difficult not only to maintain a constant air flow rate through the fibrous filter, but also to deal with this problem because the fibrous filter to be replaced is treated as industrial waste.

And the collection device using the electrostatic precipitator is a device that charges the oil mist to the anode of the discharge portion and thereby collects by electrostatic induction. In the collection device using the electric dust collection, the collection efficiency of the oil mist at the time of initial installation is good, but a situation in which the components constituting the discharge portion are frequently damaged by sparks for the electric dust collection. In addition, the dust collecting electrode portion for collecting the oil mist is easily contaminated, it is pointed out that the problem that the collection efficiency of the oil mist is significantly reduced due to the contaminated dust collecting electrode portion. In addition, the maintenance to improve the collection efficiency of the contaminated current collecting electrode portion is performed separately, it is pointed out that the collection efficiency is continuously reduced even if the maintenance. In addition, it is pointed out that the collecting device using the electrostatic precipitation is a target of only gas and not a liquid.

An object of the present invention is to provide an oil mist removing apparatus for improving the collection efficiency of oil mist.

Another object of the present invention is to provide an oil mist removing device that is easy to maintain.

Another object of the present invention is to provide an oil mist removing apparatus for targeting not only the gas but also the liquid contaminated by the oil mist.

1 is a block diagram showing an oil mist collecting device according to an embodiment of the present invention.

It is a block diagram which shows the oil mist collection apparatus of FIG. 1 in detail.

FIG. 3 is a diagram illustrating a preliminary charged / aggregated part of FIG. 1.

4 is a graph showing a distribution of diameters of oil mists aggregated using the oil mist collecting device of the present invention.

5 is a graph showing the collection efficiency of the oil mist using the oil mist collecting device of the present invention.

Explanation of symbols on the main parts of the drawings

10: inlet

12: preliminary charge / aggregation part

14: high voltage generator

16: oil mist collector

18: exhaust

20: oil mist concentration measurement unit

22: rotation speed measuring unit

24: flow measurement unit

26: flow rate measuring unit

121: discharge part

122: grounding part

The object is to be installed on the inlet of the inlet of the fluid or the gas or liquid contaminated by the oil mist, the high voltage generator for generating a high voltage, the inlet of the contaminated fluid flowing through the inlet and connected to the anode of the high voltage generator A discharge part and a ground part that are grounded, and a discharge part that is connected to the negative electrode of the high voltage generator and a ground part that are grounded, respectively, are installed to charge and coagulate the oil mist in the fluid by (+) and (-), respectively. Agglomeration section, oil mist collecting section and oil for collecting the agglomerated oil mist separated from the fluid by the inertial collision force generated by forcibly rotating the fluid by the oil mist is introduced by the agglomeration portion, precharge / flocculation means That the exhaust mist for exhausting the fluid separated from the oil mist by the mist collecting portion It can be achieved by the oil mist collecting apparatus as ranging.

The preliminary charged / aggregated part is preferably a wire plate type. The preliminary charged / aggregated part is provided with an anode and a cathode alternately at the same time.

The rotation speed measuring unit for measuring the number of revolutions forcibly rotated by the oil mist collecting unit and the flow rate measuring unit for measuring the flow rate of the fluid flowing into the oil mist collecting unit is further provided to the oil mist collecting unit good.

Accordingly, by agglomerating and rotating the oil mist and collecting the inertial collision force, the collection efficiency can be maximized while the oil mist collecting device can be used semi-permanently. In addition, the precharged / aggregated part and the oil mist collecting part can be used universally to target a gas or a liquid.

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

1 is a block diagram showing an oil mist collecting device according to an embodiment of the present invention.

Referring to FIG. 1, an inlet 10 through which contaminated fluid is introduced is provided. At least the fluid of the gas or liquid contaminated by the oil mist flows into the inlet 10. In addition, a precharge / aggregate part 12 and a high voltage generator 14 for providing a high voltage to the precharge / aggregate part 12 to charge and aggregate the oil mist in the contaminated fluid by receiving a high voltage are provided. It is. An oil mist collecting unit 16 for collecting the oil mist and an exhaust unit 18 for exhausting the fluid from which the oil mist is separated are provided.

In the oil mist collecting device having the above configuration, first, at least the fluid of the gas or liquid contaminated with the oil mist flows into the inlet portion 10. The contaminated fluid is introduced into the preliminary charge / aggregator 12 through the inlet 10. Accordingly, the contaminated fluid is charged by the preliminary charge / aggregation part 12 to agglomerate while colliding with oil mist having different polarities. Here, the preliminary charge / aggregator 12 receives a high voltage from the high voltage generator 14 to charge the oil mist in the contaminated fluid.

FIG. 3 is a diagram illustrating a preliminary charged / aggregated part of FIG. 1.

Referring to FIG. 3, the preliminary charged / aggregated part 12 is a wire plate made of tungsten wire, and is composed of a discharge part 121 and a ground part 122. These are installed at intervals, the discharge portion 121 is alternately connected to the negative electrode and the positive electrode and the grounding portion is grounded. In addition, the preliminary charge / aggregation part 12 including the discharge part 121 and the ground part 122 may be provided in plural numbers. In addition, the interval of the ground portion 122 may be installed so as to maintain about 30mm.

Accordingly, the preliminary charge / aggregator 12 receives a high voltage from the high voltage generator 14 to charge the oil mist in the contaminated fluid to agglomerate individual particles of the oil mist charged to the anode and the cathode. That is, the oil mist passing through the preliminary charge / aggregation part 12 is charged to the positive electrode and the negative electrode, and aggregates while passing through the oil mist having different polarities.

The fluid in which the oil mist is aggregated flows into the oil mist collecting unit 16. Accordingly, the fluid is rotated by the oil mist collecting unit 16. In this case, an inertial collision force is generated in the aggregated oil mist by the rotation, and the aggregated oil mist 16 is separated from the fluid by the inertial collision force. Thus, the oil mist collecting unit 16 collects oil mist separated from the fluid. The fluid from which the oil mist is separated is exhausted to the outside through the exhaust unit 18.

That is, the oil mist is charged, the charged oil mist is agglomerated to enlarge the diameter of the oil mist, and then rotates to efficiently generate an inertial collision force, thereby easily separating the oil mist from the fluid. . Accordingly, when the oil mist collecting device is used, the oil mist can be easily collected. And in order to efficiently operate the oil mist collecting device is configured as follows.

The oil mist collecting unit 16 may be provided as a centrifugal separator capable of rotating the fluid as described above or a filter for filtering the fluid.

It is a block diagram which shows the oil mist collection apparatus of FIG. 1 in detail.

Referring to FIG. 2, the inlet part 10, the high voltage generation part 14, the precharge / aggregate part 12, the oil mist collecting part 16, and the exhaust part 18 having the same configuration as described above are provided. do. And a rotation speed measuring unit 22 for measuring the number of revolutions forcibly rotated by the oil mist collecting unit 16 and the flow rate measuring unit for measuring the flow rate of the fluid flowing into the oil mist collecting unit 16 ( 24 is further provided. The rotation speed measuring unit 22 may be provided with a tachometer (tachometer).

Accordingly, by measuring the rotation speed using the rotation speed measuring unit 22, it is possible to accurately determine the degree of separation of the oil mist in accordance with the change in the rotation speed. Therefore, by actively applying this, the oil mist collecting device can be operated efficiently. In addition, by checking the flow rate flowing into the oil mist collecting unit using the flow rate measuring unit 24 in real time, it is possible to accurately determine the degree of separation of the oil mist in accordance with the change in the flow rate.

Further, in order to operate the oil mist collecting device more efficiently, a concentration measuring unit 20 for measuring the concentration of the fluid and a flow rate measuring unit 26 for measuring the flow rate of the fluid may be further provided. Here, the concentration measuring unit 20 may compare the concentration of the fluid passing through the inlet 10 and the fluid passing through the exhaust 18 so that the collection efficiency of the oil mist collecting device can be accurately confirmed. . In addition, the flow rate measuring unit 26 may also determine whether the oil mist is separated by changing the flow rate by measuring the flow rates of the fluid passing through the inlet 10 and the fluid passing through the exhaust 18. .

Therefore, by operating the oil mist collecting device efficiently, the oil mist can be easily separated from the fluid.

4 is a graph showing a distribution of diameters of oil mists aggregated using the oil mist collecting device of the present invention.

Referring to Figure 4, as a result of confirming the distribution of the diameter of the oil mist agglomerated using the precharge / agglomerated portion 12, in the case of (a) the voltage to 0kV, in the case of (b) 11kV A voltage and in the case of (c) were given a voltage of 12 kV to the preliminary charge / aggregator 12. As a result, it was confirmed that the oil mist was easily aggregated when a high voltage was provided. Therefore, the oil mist collecting device of the present embodiment can effectively aggregate oil mist having a diameter of 1 탆 or less.

5 is a graph showing the collection efficiency of the oil mist using the oil mist collecting device of the present invention.

Referring to FIG. 5, as a result of confirming the collection efficiency of the oil mist according to the diameter of the aggregated oil mist, in the case of (d), the oil mist was agglomerated by charging at a voltage of 0kV, and in the case of (e), 12kV. In the case of (f), the oil mist was agglomerated by charging only the cathode at a voltage of 12 kV, and in the case of (g), the oil mist was agglomerated at the voltage of 12 kV. Charged to agglomerate the oil mist. As a result, in the case of (g), collection efficiency is the best. Therefore, it is efficient for the preliminary charging / aggregating part 12 to simultaneously charge the positive electrode and the negative electrode to the oil mist.

In this way, the oil mist is charged to have different polarities by the preliminary charge / aggregation part 12 and is agglomerated by attraction. Accordingly, an inertial collision force is generated by forcibly rotating the oil mist having an enlarged diameter by using the oil mist collecting unit 16 to separate and collect the oil mist from the fluid.

Therefore, according to the present invention, by installing the oil mist collecting device in the workplace where the oil mist occurs, there is an effect that can efficiently manage the fluid contaminated by the oil mist. In addition, by applying the flow method, since the oil mist included in the liquid as well as the gas can be separated and collected, there is an effect that can be used universally. In addition, it applies a method of simply charging the oil mist rather than a current collecting method such as spark, there is an effect that can be operated semi-permanently by minimizing the damage to the components constituting the oil mist collecting device. In addition, since the oil mist collected using the oil mist collector may be processed and reused, there is an effect of actively coping with resource utilization.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the present invention without departing from the spirit and scope of the invention described in the claims below. I can understand that you can.

Claims (4)

An inlet through which a fluid of a gas or liquid contaminated by oil mist is introduced; A high voltage generator for generating a high voltage; A grounding part installed on the inflow path of the contaminated fluid flowing through the inlet part and grounded to a discharge part connected to the positive electrode of the high voltage generation part and a grounded part to a ground part connected to the negative electrode of the high voltage generation part; Pre-charged / aggregated parts which are installed at intervals to aggregate and charge the oil mist in the fluid by (+) and (-), respectively; An oil mist collecting unit for collecting the aggregated oil mist separated from the fluid by the inertia collision force generated by the oil mist inflowed by the preliminary charging / aggregation means and forcibly rotating the fluid. ; And And an exhaust part for exhausting the fluid from which the oil mist has been separated by the oil mist collecting part to the outside. The oil mist collecting device according to claim 1, wherein the precharge / flocculation unit is a wire plate type. The oil mist collecting device according to claim 1, wherein the preliminary charging / aggregating unit is provided with alternating positive and negative electrodes simultaneously. The oil mist collecting unit of claim 1, wherein the rotation speed measuring unit for measuring the rotational speed forcedly rotated by the oil mist collecting unit and the flow rate measuring unit for measuring the flow rate of the fluid flowing into the oil mist collecting unit Oil mist collecting device, characterized in that further provided.