KR102400043B1 - Condenser for waste oil purification system - Google Patents

Abstract

The present invention relates to a condenser for a waste lubricating oil purifier. According to an aspect of the present invention, provided is a condenser for a waste lubricating oil purifier that is used in a waste lubricating oil purifier for removing moisture and particulate contaminants contained in waste lubricating oil. The condenser for a waste lubricating oil purifier is configured to improve the condensation effect of evaporated water discharged from the waste lubricating oil purifier by supplying air cooled while passing through a vortex tube to the condenser through a cooling case.

Description

Condenser for waste lubricant purification system {CONDENSER FOR WASTE OIL PURIFICATION SYSTEM}

The present invention relates to a condenser for a waste lubricating oil purification device, and relates to a condenser used in a waste lubricating oil purification device for removing moisture and particulate contaminants contained in waste lubricating oil. The present invention relates to a condenser for a waste lubricating oil purifier configured to improve the condensing effect of evaporated moisture discharged from the waste lubricating oil purifying device by supplying it to the condenser through the used lubricating oil purifying device.

In industrial plants such as power generation facilities and hydraulic devices, various types of industrial oils (eg, mineral oil, vegetable, animal, synthetic, etc.) are used.

These industrial oils are generally non-hydrophilic, and the use environment is managed so that moisture is not mixed or dissolved, but in the process of long-term use in various industrial environments, they inevitably form a water-dissolved water-containing material or may contain particulate contaminants. can

In particular, dissolved moisture contained in the water-containing material is a factor that promotes failure and aging of industrial machinery. For example, corrosion of equipment, reduction of lubricating properties, oil film breakdown, wear of machine elements, oxidation of lubricating oil, etc. Since it becomes a factor of deterioration of a wide variety of mechanical properties, it is necessary to remove it.

As an example of the prior art for removing dissolved water and/or particulate contaminants contained in a water-containing body, Korean Patent No. 10-0407159 (registered on November 13, 2003) relates to a waste lubricant purification device and method therefor, A waste lubricant purification device capable of simultaneously and continuously separating or collecting moisture and particulate contaminants contained in the waste lubricant was proposed.

As another example of the prior art, Korean Patent Registration No. 10-0407161 (registered on November 13, 2003) relates to an apparatus and method for removing moisture contained in waste lubricating oil. A device and method for removing moisture contained in waste lubricant that prevents the generation of waste lubricant during operation and enables long-term use were proposed.

In the prior art, after the moisture contained in the waste lubricant is evaporated in the evaporation chamber, the evaporated water in the evaporation chamber is introduced into the condenser through the condenser by the vacuum pressure of the vacuum pump, and condensed while passing through the condenser. Moisture was removed by allowing the collected moisture to be stored in the condensate tank.

However, since the air cooling type condenser used in the prior art is affected by changes in ambient air temperature, there is a limit in providing a stable condensation effect according to the use environment (ambient temperature) or seasonal changes. In particular, since the evaporated moisture flowing into the condenser is introduced by the negative pressure of the vacuum pump rather than the pressurization by the compressor, the condensation efficiency of the evaporated moisture may be further affected if the temperature or flow rate of the cooling air is not stable. .

Republic of Korea Patent Registration 10-0407159 (Registered on November 13, 2003) Republic of Korea Patent Registration 10-0407161 (Registered on November 13, 2003)

The present invention has been devised in view of the above problems, and relates to a condenser used in a waste lubricating oil purification device for removing moisture and particulate contaminants contained in the waste lubricating oil, wherein the air cooled while passing through a vortex tube is cooled in a cooling case An object of the present invention is to provide a condenser for a waste lubricating oil purifying device configured to improve the condensation effect of evaporated moisture discharged from the waste lubricating oil purifying device by supplying it to the condenser through the .

According to one aspect of the present invention for achieving the above object, as a condenser for condensing the evaporated and leaked moisture in the vacuum chamber of the waste lubricating oil purification device, an inlet pipe into which the evaporated moisture is introduced, and the condensed moisture is discharged a condenser body including a condensing coil part disposed in a form in which a discharge pipe part which becomes a duct part and a plurality of condensation coils connecting the inlet pipe part and the discharge pipe part have an area for heat exchange; a cooling fan coupled and installed on the rear side of the condenser body in a form to cover the area of the condensing coil unit; It is coupled and installed on the front side of the condenser body to cover the area of the condensing coil part, an external air inlet is formed on one side of the box-shaped body part, and a cooling air inlet is formed on the other side of the main body part. cooling case; and a vortex tube coupled to one side of the cooling case, receiving compressed air, converting a part of the compressed air into cooling air and discharging it; The cooling air is supplied into the body of the cooling case, and external air introduced through the external air inlet from the inside of the cooling case and the cooling air form a state of mixed air, and the mixed air flows by the negative pressure of the cooling fan. Disclosed is a condenser for a waste lubricant purification device configured to cool the condensing coil while passing between the condensing coils and to be discharged to the outside of the cooling fan.

Preferably, the cooling case includes a rectangular front portion disposed on the front side of the condenser body in a form that covers the area of the condensing coil portion, and a side portion having a predetermined width and provided on each edge of the front portion It is configured to include a box-shaped body portion, at least one external air inlet formed on a lower side surface of the main body portion, and a cooling air inlet formed on a left or right side portion of the main body portion.

Preferably, on the inside of the lower side portion of the main body of the cooling case, a flow guide plate for inducing a lateral flow to the external air introduced upward through the external air inlet to have a changed direction flow in the cooling case inner space. ; is further provided.

Preferably, the flow guide plate has one end fixed to a peripheral portion of one side of the lower side of the main body, and has an upwardly inclined shape such that the other end is at a higher position than the one end.

Preferably, between the cooling case and the condenser body, a flow distribution plate including a plate body having a shape covering an area for heat exchange of the condensing coil part, and a plurality of air flow holes dispersedly formed in the plate body part; This is further provided.

Preferably, the flow distribution plate includes a first air flow hole region located in the central portion of the plate body in which a plurality of first air flow holes are formed, and a further upper portion than the first air flow hole region, and A second air flow hole region in which a plurality of second air flow holes having a diameter larger than that of the first air flow hole are formed and disposed, and the second air flow hole region is located further lower than the first air flow hole region and is smaller than the first air flow hole region It is configured to include a third air flow hole region in which a plurality of third air flow holes having a diameter are formed and disposed.

Preferably, the third air flow hole further includes a protruding edge portion protruding toward the front side of the cooling case.

The present invention has the advantage of improving the condensation effect of evaporated moisture discharged from the waste lubricating oil purification device and providing a stable condensation effect by supplying air cooled while passing through the vortex tube to the condenser through the cooling case.

1 is a perspective view of a condenser for a waste lubricating oil purification device according to an embodiment of the present invention;
2 is a perspective view from another direction of a condenser for a waste lubricating oil purification device according to an embodiment of the present invention;
3 is an exploded perspective view of a condenser for a waste lubricating oil purification device according to an embodiment of the present invention;
4 is a cross-sectional view of a cooling case of a condenser for a waste lubricant purification device according to an embodiment of the present invention;
5 is a view of the state in which the condensing coil unit and the cooling fan are removed from FIG. 4;
6 is an exploded perspective view of a condenser for a waste lubricating oil purification device according to another embodiment of the present invention;
7 is a side view of a flow distribution plate of a condenser for a waste lubricating oil purification device according to another embodiment of the present invention;
8 is a cross-sectional view of a cooling case of a condenser for a waste lubricating oil purification device according to another embodiment of the present invention.

The present invention may be embodied in various other forms without departing from its technical spirit or main characteristics. Accordingly, the embodiments of the present invention are merely illustrative in all respects and should not be construed as limiting.

The terms 1st, 2nd, etc. are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but another component may exist in between.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "comprises" or "comprising", "have" and the like are intended to represent the presence of elements or combinations thereof described in the specification, and the possibility that other elements or features may be present or added. It is not precluded.

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

1 is a perspective view of a condenser for a waste lubricating oil purification device according to an embodiment of the present invention, FIG. 2 is a perspective view from another direction of a condenser for a waste lubricating oil purification device according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention An exploded perspective view of a condenser for a waste lubricating oil purification device according to, FIG. 4 is a cross-sectional view of a cooling case of a condenser for a waste lubricant purification device according to an embodiment of the present invention, and FIG. 5 is a state in which the condensing coil unit and the cooling fan are removed from FIG. is a drawing of

The condenser of this embodiment includes a condenser body 10, a cooling fan 20, a cooling case 30, and a vortex tube 40, and condenses the water evaporated and leaked from the vacuum chamber (VC) of the waste lubricant purifier. do.

The condenser body 10 includes an inlet pipe part 12 through which evaporated moisture is introduced, a discharge pipe part 14 through which the condensed moisture is discharged, and a plurality of connecting the inlet pipe part 12 and the discharge pipe part 14 . The condensing coil 16a includes a condensing coil unit 16 disposed in a shape having an area for heat exchange.

One side of the inlet pipe part 12 is connected to the inlet pipe 112 connected to the discharge side of the vacuum chamber VC, and the other end is connected to the hollow inlet pipe 10a of the condenser body 10 .

The discharge pipe part 14 has one side connected to a discharge pipe 114 connected to a condensate tank (not shown), and the other side is connected to the hollow discharge pipe body 10b of the condenser body 10 .

Evaporated moisture supplied to the inlet pipe 10a of the condenser body 10 through the inlet pipe 12 is condensed while passing through the condensing coil 16a, and flows to the outlet pipe 10b of the condenser body 10 and discharged It is discharged to the outside of the condenser through the pipe (14).

The condensing coil 16a is configured such that a plurality of coils are arranged in parallel with a predetermined interval, and a cooling fin 16b is coupled to the middle of the parallel arranged coils to discharge heat when moisture is condensed.

The cooling fan 20 is coupled and installed on the rear BA side of the condenser body 10 in a form to cover all or a part of the area of the condensing coil unit 16 .

The cooling fan 20 has a structure in which a driving fan 26 rotationally driven by a motor 22 is coupled to the opening 25 of the frame plate 24 , and the frame plate 24 is the condenser body 10 . ) and a bolt (not shown) to form a combined state. To this end, the frame plate 24 and the upper and lower ends of the condenser body 10 is formed with a hole for bolting (not shown). In addition, the frame of the driving fan 26 has a frame fixing part 23 and is coupled to the frame plate 24 using a bolt B1.

The motor 22 of the cooling fan 20 is electrically connected to a control unit (not shown) of the waste lubricant purification device to perform on/off control, and for this purpose, the control unit (not shown) includes temperature value control or time Algorithms for control can be set.

The cooling case 30 is coupled to the front (FA) side of the condenser body 10 in a form to cover the area of the condensing coil unit 16 , and is installed on one side of the box-shaped body unit 32 . An external air inlet 33 is formed, and a cooling air inlet 35 is formed at the other side of the side surface of the main body 32 . The detailed structure of the cooling case 30 will be described later.

The vortex tube 40 is coupled to one side (outer surface side) of the cooling case 30, receives compressed air, and converts a portion of the compressed air into cooling air (CA) and discharges it.

The vortex tube 40 is a known device for separating and discharging a high-temperature airflow and a low-temperature airflow by blowing compressed air tangentially into a narrow tube, and the low-temperature airflow can be used as the cooling air CA of this embodiment.

Referring to FIG. 1 , when compressed air at room temperature supplied through the high-pressure hose H1 flows into the inside of the tube body 42 through the connection part 44 , a vortex is forcibly generated inside the tube body 42 . to separate the central low-temperature airflow and the edge-side high-temperature airflow, the low-temperature airflow is discharged through the low-temperature air outlet 46 and the high-temperature airflow is discharged through the high-temperature air exhaust port 48 .

A variety of pneumatically operated devices are installed in industrial plants such as power generation facilities and hydraulic devices where the waste lubricant purification device is installed, and for this purpose, a utility pipe line for supplying compressed air using a compressor is generally installed.

In this embodiment, compressed air at room temperature may be supplied through such a utility pipe line or may be supplied through a separate dedicated compressor.

The regulator 90 may be installed between the compressed air piping line HH and the high pressure hose H1 to stably maintain the supply pressure of the compressed air. The regulator 90 may include an inlet connector 94 connected to the compressed air piping line HH, a main body 92, an outlet connector 96 connected to the high pressure hose H1 and provided with a valve.

The cooling case 30 of this embodiment has the following detailed configuration.

The cooling case 30 includes a rectangular front portion 32a and a front portion 32a disposed on the front side of the condenser body 10 in a form to cover the area of the condensing coil portion 16, respectively. It is provided on the edge of the box-shaped body portion 32 including a side portion (32b) having a predetermined width.

In addition, the cooling case 30 includes one or more external air inlets 33 formed in the lower side portion 32b ′ of the main body 32 , and the left or right side portion 32b of the main body 32 . and a formed cooling air inlet (35). A connection connector C2 is provided at the cooling air inlet 35 to connect the intermediate hose H2 that supplies the cooling air CA discharged from the low temperature air outlet 46 of the vortex tube 40 .

Preferably, the cooling case 30 includes a flow guide plate 34 .

The flow guide plate 34 is installed inside the lower side portion 32b ′ of the main body 32 of the cooling case 30 , and external air (OA) introduced upward through the external air inlet 33 . It induces a lateral flow (SF) in the cooling case 30 to have a flow changed in the inner space.

More specifically, in the flow guide plate 34 , one end 34a is fixed to a peripheral portion of one side of the lower side portion 32b ′ of the main body 32 , and the other end 34b is the one end 34a . ) and has an upward sloping shape to be in a higher position.

By the above configuration, since the lateral flow SF is induced in the external air OA flowing upward, the cooling air CA introduced through the cooling air inlet 35 formed in the left or right side part 32b is cooled. It can be more smoothly introduced to the central part of the case 30 and mixed. For example, along the upwardly inclined flow guide plate 34, some of the external air OA and the cooling air CA are naturally mixed in the central part of the cooling case 30 while adjoining the flow direction along the inclined plane direction. The flow state is achieved, and the mixed air MA is formed in which the external air OA and the cooling air CA are evenly mixed.

The outside air (OA) has a large air volume but is at room temperature, and the cooling air (CA) has a relatively low air volume but is at a low temperature. Since it has a low temperature, it is much more advantageous than normal air at room temperature in providing a cooling effect to the condensing coil 16a.

The end of the flow guide plate 34 may be further bent upward toward the central portion of the cooling case 30 to more effectively guide the air flow direction. (See the other end 34b of FIG. 5)

The cooling case 30 and the condenser body 10, or the condenser body 10 and the cooling fan 20 are bolts B2 Or B3) and may be coupled using a nut (N).

The cooling operation of the condenser for the waste lubricating oil purification device of this embodiment will be described.

The cooling air CA discharged from the vortex tube 40 is supplied into the body portion 32 of the cooling case 30 through the cooling air inlet 35 formed in the left or right side portion 32b.

External air (OA) is introduced into the body portion 32 of the cooling case 30 through the external air inlet 33 by the negative pressure of the cooling fan 20, and makes an upward flow.

Inside the cooling case 30 , the external air OA introduced through the external air inlet 33 and the cooling air CA are mixed to form a state of the mixed air MA.

The mixed air MA flows by the negative pressure of the cooling fan 20 and passes between the condensing coils 16a to cool the condensing coil 16a and to the outside (rear side) of the cooling fan 20 . is emitted

On the other hand, the condenser for the waste lubricating oil purification device of this embodiment may take a configuration using a flow distribution plate for controlling the air flow of the cooling case.

6 is an exploded perspective view of a condenser for a waste lubricating oil purification device according to another embodiment of the present invention, FIG. 7 is a side view of a flow distribution plate of the condenser for a waste lubricating oil purification device according to another embodiment of the present invention, FIG. 8 is It is a cross-sectional view of a cooling case of a condenser for a waste lubricating oil purification device according to another embodiment of the present invention.

The flow distribution plate 50 of this embodiment is installed between the cooling case 30 and the condenser body 10 .

The cooling case 30, the flow distribution plate 50, and the condenser body 10 are bolted (B2) and a nut (N) to the through-holes (NH) formed in the upper and lower extensions 39 or 59 and 19, respectively. can be combined using

The flow distribution plate 50 includes a plate body 52 having a shape covering an area for heat exchange of the condensing coil part 16 , and a plurality of air flow holes 54 dispersedly formed in the plate body part 52 . ) is included.

In more detail, the flow distribution plate 50 is located in the center of the plate body 52 and includes a first air flow hole region 50-1 in which a plurality of first air flow holes 54a are formed and arranged. do.

In addition, the flow distribution plate 50 is located further above the first air flow hole region 50-1 and has a second air flow hole 54b having a larger diameter than that of the first air flow hole 54a. ) are formed and arranged in a plurality of second air flow hole regions 50-2, and are located further lower than the first air flow hole regions 50-1 and have a smaller diameter than the first air flow hole 54a. and a third air flow hole region 50 - 3 in which a plurality of third air flow holes 54c are formed and disposed.

In particular, the third air flow hole 54c has a protruding edge portion 54c ′ protruding toward the front portion 32a of the cooling case 30 .

Through the above configuration, in the third air flow hole region 50-3 where the mixing of the external air OA and the cooling air CA is not sufficiently achieved, the mixed air MA passes through a hole having a smaller diameter and is cooled. In the second air flow hole region 50-2, in which the external air OA and the cooling air CA are relatively sufficiently mixed to flow toward the fan 20, the mixed air MA is passed through a hole having a larger diameter. ) to pass through and flow to the cooling fan 20 side.

Through the above configuration, the mixed air MA through the second air flow hole 54b of the second air flow hole region 50-2 in which the external air OA and the cooling air CA are relatively sufficiently mixed. It can be naturally induced to make the flow of

In particular, since the third air flow hole 54c has the smallest diameter of the flow hole and has a protruding edge portion 54c', the outside air OA and the cooling air CA do not directly flow into the protruding edge portion. By inducing further mixing through 54c', it is configured to maximize generation of mixed air MA.

Through this, the condenser of this embodiment has the advantage of allowing the external air OA and the cooling air CA to be mixed as much as possible evenly over the entire area of the cooling fan 20 and introduced into the mixed air MA. The number of flow holes or an arrangement structure may be appropriately set in consideration of the flow amount.

Although the present invention has been mainly described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many various and obvious modifications can be made therefrom without departing from the scope of the present invention. Accordingly, the scope of the present invention should be construed by the appended claims to cover many such modifications.

10: condenser body
12: inlet pipe part
14: discharge pipe part
16: condensing coil unit
20: cooling fan
30: cooling case
32: body part
33: outside air inlet
34: flow guide plate
35: cooling air inlet
40: vortex tube
50: flow distribution plate
52: plate body
54: air flow hole
OA: outside air
CA: cooling air
MA: mixed air

Claims (7)

As a condenser for condensing the water evaporated and leaked from the vacuum chamber of the waste lubricating oil purification device,
A condenser body comprising an inlet pipe into which evaporated moisture is introduced, a discharge pipe through which condensed moisture is discharged, and a condensing coil in which a plurality of condensing coils connecting the inlet and outlet have an area for heat exchange. ;
a cooling fan coupled and installed on the rear side of the condenser body in a form to cover the area of the condensing coil unit;
It is coupled and installed on the front side of the condenser body to cover the area of the condensing coil part, an external air inlet is formed on one side of the box-shaped body part, and a cooling air inlet is formed on the other side of the main body part. cooling case; and
A vortex tube coupled to one side of the cooling case, receiving compressed air, converting a portion of the compressed air into cooling air, and discharging; includes,
The cooling air discharged from the vortex tube is supplied to the inside of the body of the cooling case through the cooling air inlet, and the external air introduced through the external air inlet from the inside of the cooling case and the cooling air form a state of mixed air, , A condenser for a waste lubricant purifier configured to flow the mixed air by the negative pressure of the cooling fan, cool the condensing coil while passing between the condensing coils, and discharge to the outside of the cooling fan.
According to claim 1,
The cooling case,
A box-shaped body portion including a rectangular front portion disposed on the front side of the condenser body in a form to cover the area of the condensing coil portion and a side portion having a predetermined width provided on each edge of the front portion;
At least one external air inlet formed on the lower side of the main body;
A condenser for a waste lubricating oil purification device, characterized in that it comprises a cooling air inlet formed on the left or right side of the main body.
3. The method of claim 2,
Inside the lower side portion of the main body of the cooling case, a flow guide plate for inducing a lateral flow to the external air introduced upward through the external air inlet to have a changed direction flow in the space inside the cooling case; is further A condenser for a waste lubricating oil purification device, characterized in that it is provided.
4. The method of claim 3,
The flow guide plate,
A condenser for a waste lubricating oil purification device, characterized in that one end is fixed to a peripheral portion of one side of the lower side of the main body, and the other end is inclined upward so that the other end is at a higher position than the one end.
3. The method of claim 2,
Between the cooling case and the condenser body, a plate body having a shape to cover an area for heat exchange of the condensing coil part, and a flow distribution plate including a plurality of air flow holes dispersedly formed in the plate body; A condenser for a waste lubricating oil purification device, characterized in that it has been
6. The method of claim 5,
The flow distribution plate,
a first air flow hole region located in the center of the plate body and having a plurality of first air flow holes formed therein;
a second air flow hole area positioned further above the first air flow hole area and having a plurality of second air flow holes having a larger diameter than the first air flow hole area;
Lung, characterized in that it is located further lower than the first air flow hole area and is configured to include a third air flow hole area in which a plurality of third air flow holes having a smaller diameter than the first air flow hole are formed and arranged. Condensers for lubricating oil purifiers.
7. The method of claim 6,
The third air flow hole is a condenser for a waste lubricating oil purification device, characterized in that it further includes a protruding edge portion protruding toward the front side of the cooling case.

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