KR101805055B1 - Oil demister of heat exchanger type - Google Patents

Abstract

The present invention relates to a heat exchange type oil vapor collecting device. In particular, the present invention relates to a device for recovering or removing the condensed oil droplets by enabling the oil vapor to be heat exchanged with a refrigerant while oil vapor of high temperature is passing through a zigzag-shaped narrow gap, thereby condensing fine oil vapor particles into oil droplets. The heat exchange type oil vapor collecting device of the present invention comprises: a duct-shaped or cylindrical pressure container-shaped casing (100) provided on a flow path (10) through which an oil vapor passes; a refrigerant pipeline (200) which is piped within the casing (100), and in which a refrigerant of low temperature is circulated; and a vane cooling plate (300) including a plurality of plates (310) which are supported to an outer surface of the refrigerant pipeline (200) and disposed in parallel by keeping a predetermined gap with each other, and which have a cross-sectional shape multi-bent in a zigzag shape according to a flow direction of the oil vapor. Therefore, the heat exchange type oil vapor collecting device according to the present invention enhances marketability and market competitiveness, and can effectively prevent environmental pollution at the same time by enabling a large flow amount of the oil vapor to be treated within a short time while increasing design freedom of a lubricant circulating system and the like through a compact structure in which a heat exchanger and an oil collecting module are integrated.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange type vapor collecting apparatus, and more particularly, to a heat exchange type vapor collecting apparatus for collecting and recovering fine vapor particles as oil droplets by allowing heat exchange with a coolant while passing a narrow zigzag- , It is possible to improve the degree of freedom of design such as lubricant circulation system by the compact structure in which the heat exchanger and oil collecting module are integrated, and to process the vapor of a large quantity in a short time, thereby increasing the commerciality and market competitiveness and effectively preventing environmental pollution Lt; / RTI >

In general, lubricant means an oil-based material used to reduce the frictional force generated on the friction surface of a machine or to disperse frictional heat generated from the friction surface. Basically, it is necessary to maintain a suitable viscosity at the operating temperature and to form a stable oil film , And stability against heat and oxidation is high.

These lubricants are widely used in conventional mechanical devices requiring lubrication, and various types of lubricant circulation systems are generally provided depending on the friction conditions of the elements constituting the mechanical device.

For example, in a small mechanical device such as an automobile, it is possible to reduce frictional force or disperse frictional heat with only a few liter of lubricating oil in a liter of a lubricating oil circulation system. In this case, the temperature of the lubricating oil maintains a relatively low temperature .

However, in a very large-sized mechanical device such as a turbine of a power generation facility or an engine of a large-sized ship, a large amount of lubricating oil, usually ranging from hundreds of liters to thousands of liters, is required in the lubricant circulation system in order to exhibit a smooth lubrication performance.

Particularly, in a lubricating oil circulation system provided in a power generation facility or a large-sized ship, the temperature of the lubricating oil is greatly increased due to excessive frictional heat between the components, so that the lubricating oil is liable to exist in a vapor state. When such a lubricating oil exists in a vapor state, It is not only difficult to exert, but also causes a rise in the pressure in the lubricant circulation system, so that there is a risk of explosion.

For this reason, a separate vapor collecting device for collecting or removing the vapor, that is, the oil mist, is provided in the lubricating oil circulation system in the power generation facilities or large ships.

The conventional vapor collecting apparatus has a structure in which a plurality of through holes are formed and a plurality of net-like filter bodies are stacked in layers to pass the vapor, so that the vapor is collected in a net-like filter body and the collected oil droplets are collected or removed.

However, in the conventional vapor collecting apparatus, it is difficult to collect or remove the collected oil droplets from the mesh type filter. Particularly, in the case of high temperature vapor, since the particle diameter is as small as about 0.05 to 0.5 micrometer, There is a limit in effectively collecting the vapor by using only the filter-type filter.

That is, when the through-hole size of the filtration body is too small, the pressure loss against the vapor increases in the lubricating oil circulation system. On the other hand, when the through-hole size of the filtration body is too large, the collection efficiency for the vapor decreases.

In order to compensate for this, a conventional heat exchanger for cooling the high temperature vapor to a low temperature prior to the mesh type filter body is further provided to collect the particle size of the vapor.

However, in the case of the conventional vapor collecting apparatus in which the heat exchanger and the net-like filter body are sequentially arranged as described above, the size of the apparatus is enlarged to require a large installation space, and the degree of freedom in designing the lubricant circulating system is deteriorated, There has also been a problem in the prior art that equipment costs are incurred.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a compact structure in which a heat exchanger and an oil collecting module are integrated and provided in a power generating facility or a lubricant circulating system of a large ship, The present invention provides a heat exchange type vapor capture device capable of increasing the degree of freedom of design such as a lubricant circulation system and treating vapor of a large flow rate within a short period of time, thereby increasing commerciality and market competitiveness and effectively preventing environmental pollution I want to.

The present invention relates to a gas turbine comprising a casing in the shape of a duct or a cylindrical pressure vessel provided on a passage through which a vapor flows; A refrigerant pipe which is piped in the casing and in which a low-temperature refrigerant circulates; And a plurality of vane cooling plates having a cross-sectional shape bent in a zigzag shape along the traveling direction of the vapor, the plurality of plate members being arranged to be parallel to each other while being held on the outer surface of the refrigerant conduit while maintaining a predetermined gap therebetween.

At this time, it is preferable that an oleophilic coating layer is additionally formed on the outer surface of the vane cooling plate.

In addition to this, it is preferable that the curved line of the sheet material having a zigzag shape in the vane cooling plate be inclined.

In addition, it is most preferable that the vane cooling plate is further provided with a vertical drip guide bar.

As described above, the present invention provides a compact structure in which the heat exchanger and the oil collecting module are integrated, and is provided in a power generating facility, a lubricating oil circulating system of a large ship, etc. so that high temperature vapor can be quickly condensed into oil droplets and recovered or removed. It is possible to increase the degree of freedom in the design of the system and the like and to process the vapor of a large flow rate within a short time, thereby increasing the commerciality and the market competitiveness and effectively preventing environmental pollution.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing an installation example of a heat exchange type vapor collector according to the present invention;
2 is a front sectional view showing a heat exchange type vapor collecting apparatus of the present invention,
3 is a side cross-sectional view showing a heat exchange type vapor collecting apparatus of the present invention,
Fig. 4 is an enlarged view of the portion A in Fig. 2,
5 is a side sectional view showing a modified example of the heat exchange type vapor capture device of the present invention,
6 is a front sectional view showing an example in which a casing of a cylindrical pressure vessel shape is applied in the heat-exchanging vapor capture device of the present invention.

FIG. 2 is a front sectional view showing a heat exchange type vapor collecting apparatus of the present invention. FIG. 3 is a cross-sectional view of the heat exchange type vapor vapor collecting apparatus of the present invention. Sectional view showing the collecting device.

4 is an enlarged view of portion A in Fig. 2. Fig.

FIG. 5 is a side sectional view showing a modified example of the heat exchange type vapor trapping apparatus of the present invention. FIG. 6 is a front sectional view showing an example in which a casing of a cylindrical pressure vessel shape is applied in the heat exchanging vapor capture apparatus of the present invention. to be.

The specific structure or functional description presented in the embodiment of the present invention is merely illustrative for the purpose of illustrating an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention can be implemented in various forms. And should not be construed as limited to the embodiments described herein, but should be understood to include all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Meanwhile, in the present invention, the terms first and / or second etc. may be used to describe various components, but the components are not limited to the terms. The terms may be referred to as a second element only for the purpose of distinguishing one element from another, for example, to the extent that it does not depart from the scope of the invention in accordance with the concept of the present invention, Similarly, the second component may also be referred to as the first component.

Whenever an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but it should be understood that other elements may be present in between something to do. On the other hand, when it is mentioned that an element is "directly connected" or "directly contacted" to another element, it should be understood that there are no other elements in between. Other expressions for describing the relationship between components, such as "between" and "between" or "adjacent to" and "directly adjacent to" should also be interpreted.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It will be further understood that the terms " comprises ", or "having ", and the like in the specification are intended to specify the presence of stated features, integers, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

The heat exchanging type vapor collecting apparatus of the present invention is provided in a power generating facility or a lubricating oil circulating system of a large ship in a compact structure in which a heat exchanger and an oil collecting module are integrated so that high temperature vapor can be quickly condensed into oil droplets and recovered or removed , Lubricating oil circulation system and the like, and it is possible to treat vaporized oil of a large flow rate in a short time, thereby increasing the commerciality and market competitiveness and effectively preventing environmental pollution.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 4, the heat exchange type vapor collecting apparatus of the present invention includes a casing 100 having a duct-shaped or cylindrical pressure vessel shape provided on a flow path 10 through which a vapor flows, A refrigerant pipe (200) which is piped in the casing (100) and in which a low temperature refrigerant circulates; A plurality of plate members 310 are arranged on the outer surface of the refrigerant pipe 200 while being spaced apart from each other by a predetermined distance so as to be parallel to each other and arranged in a zigzag shape along the traveling direction of the vapor, 300).

Before describing the detailed configuration of the heat exchange type vapor capture device of the present invention, a specific installation example of the heat exchange type vapor capture device of the present invention will be described with reference to FIG.

As shown in FIG. 1, the lubricating oil circulation system includes a tank 20 in which lubricating oil is stored basically, a tank 20 in which the lubricating oil is stored in the tank 20, A supply pipe path 50 including an oil pump 40 for feeding lubricating oil to a turbine of a power generation facility or an engine of a large-sized ship, And a return pipe (60) for returning the lubricating oil to the tank (20).

The lubricating oil circulation system is an example, and it will be obvious that the structure and the form of the lubricating oil circulation system can be variously modified depending on the actual installation environment.

In the lubricating oil circulation system, a high-temperature vapor generated in accordance with the lubrication of the mechanical device 30 is present in the tank 20 together with the lubricating oil. The high-temperature vapor present in the tank 20 causes an increase in pressure, A vapor flow path 10 for discharging such high temperature vapor to the outside of the tank 20 is separately formed.

At this time, the high-temperature vapor may be sent from the tank 20 to the vapor flow path 10 by its own pressure, and if necessary, a separate blower 70 may be added to the high-temperature vapor existing in the tank 20, It may be forcedly fed by the oil line 10.

The heat exchanging type vapor collecting apparatus according to the present invention is installed on the vapor flow path 10 of the lubricating oil circulation system and the diameter of the high temperature vapor particle passing through the vapor flow path 10 is about 0.05 to 0.5 micrometers .

As shown in FIGS. 2 and 3, the heat exchanging type vapor collecting apparatus of the present invention includes a casing 100, a refrigerant duct 200, and a vane cooling plate 300.

First, the casing 100 is formed in the middle of the vapor passage 10 in the form of a basic external skeleton in the present invention, and may be formed in the shape of a duct or a cylindrical pressure vessel.

1 to 3 illustrate a casing 100 having a duct shape having the same dimensions as the vaporous flow passage 10, but the casing 100 may be molded into a cylindrical pressure vessel shape as shown in FIG. 6 .

That is, either the duct shape or the cylindrical pressure vessel shape can be selected as the casing 100 according to the installation environment.

Preferably, a casing 100 of a duct shape is applied to a power generation facility, and a casing 100 of a cylindrical pressure vessel type is applied to a large ship.

At this time, the casing 100 may have a circular cross section or a rectangular cross section, and the sectional shape of the casing 100 is not limited as long as it can smoothly flow the vapor.

However, it is preferable that the casing (100) is formed to have a predetermined length and can be easily connected to the middle of the above-described vapor flow path (10).

Next, the refrigerant line 200 is piped into the casing 100 as a line through which the low-temperature refrigerant circulates.

At this time, the refrigerant line 200 must efficiently perform heat exchange with the high-temperature vapor within a limited length of the casing 100. For this purpose, the refrigerant line 200 can secure a wide heat exchange area As shown in FIG. 2, it is preferable to perform the piping so as to reciprocate several times to the left and right at a height difference from the front view.

Of course, such a coolant duct 200 may be formed as two or more layers in the thickness direction as shown in FIG.

As a material of the coolant line 200, copper having high formability and excellent thermal conductivity is preferable, and it is obvious that it is not limited thereto.

Here, the coolant supplied into the coolant line 200 may be low-temperature coolant that is continuously supplied from a separate water supply line.

However, in the present invention, it is more preferable to select one of the known refrigerants such as ammonia, freon gas, methyl chloride and the like according to heat exchange conditions rather than cooling water in view of cooling efficiency.

It is preferable that such a refrigerant is cooled by a known refrigeration cycle 80 in Fig. 1, which is composed of a compressor 81, a condenser 82, an expansion valve 83, and an evaporator 84.

The refrigeration cycle 80 includes a compressor 81, a condenser 82, an expansion valve 83, and an evaporator 84 connected in series through a channel so that the refrigerant can be circulated into the refrigeration cycle 80. In the cycle 80, it is most preferable that the evaporator 84 constitutes the refrigerant line 200.

Accordingly, the refrigerant pipeline 200 is affected by the low-temperature refrigerant from the refrigeration cycle 80 described above.

As shown in FIGS. 2 and 3, the vane cooling plate 300, which is a core component of the present invention, functions as a cooling fin, and a plurality of plate members 310 maintain a certain gap therebetween And are arranged on the outer surface of the refrigerant pipe 200 in parallel.

As the material of the vane cooling plate 300, aluminum having high thermal conductivity and excellent formability is preferable, but the present invention is not limited thereto.

As a result, cool air having a low temperature of the refrigerant is transferred from the refrigerant duct 200 to the vane cooling plate 300, and a high temperature (high temperature) is generated in the gap between the plurality of plate materials 310 constituting the vane cooling plate 300 The heat is exchanged between the refrigerant and the vapor.

Particularly, in the present invention, the plate material 310 constituting the vane cooling plate 300 is the most significant feature because it has a cross-sectional shape bent in a zigzag shape along the traveling direction of the vapor.

According to this configuration, as shown in FIG. 4, the high-temperature vapor flowing into the lower portion of the vane cooling plate 300 is rapidly cooled while passing through the space between the plate materials 310. As a result, The diameter of the vapor is rapidly condensed and the particle size becomes large.

At the same time, since the plate material 310 of the vane cooling plate 300 is formed in a zigzag shape, the nonvolatilized vapor particles can flow more efficiently in the vicinity of the bent portion where the flow direction changes between the plate materials 310, So that it is conceived on the surface of the substrate 310.

The bending angle and the bending depth of the plate 310 should be properly set so that the vapor can not rise in a vertical direction through the gap between the plate materials 310 and rise along the zigzag shape will be.

In addition, when the length of the casing 100, the height of the vane cooling plate 300, and the gap or bending angle between the plates 310 in the vane cooling plate 300 are not appropriate, ), The pressure loss of the vapor may become too large, so that these numerical conditions will have to be adjusted appropriately according to the installation environment.

As described above, the oil droplet implanted in the plate material 310 of the vane cooling plate 300 flows down on the surface of the plate material 310 due to its own weight.

The oil droplets flowing down the surface of the plate 310 may be recovered to the tank 20 of the lubricating oil circulation system described above or may be separately discharged.

Although the basic operation of the heat exchange type vapor collecting apparatus of the present invention has been described so far, the following description will be made on the easier removal or collection of the oil droplets collected in the vane cooling plate 300.

In the present invention, it is preferable that a lipophilic coating layer 311 is additionally formed on the outer surface of the vane cooling plate 300 as illustrated in FIG.

The oleophilic coating layer 311 is formed on the outer surface of the plate 310 of the vane cooling plate 300 using a material such as Teflon so that the oil droplet implanted in the plate 310 is smoothly So that it can flow down.

Accordingly, even if the oil droplets are relatively small droplets, they can be easily collected and removed by the lipophilic coating layer 311 without being covered with the plate member 310. [

In addition, in the present invention, the curved line 312 of the sheet material 310 having a zigzag shape in the vane cooling plate 300 may be inclined.

As described above, the vane cooling plate 300 is composed of a plate member 310 bent in a zigzag shape in cross section. At this time, the bent line 312, which is a line connecting the inflection points of the plate member 310, 3 < / RTI >

5, if the folding line 312 of the sheet material 310 is inclined to be inclined at a predetermined inclination angle with the paper surface, the collected oil droplets are collected along the folding line 312 or the bottom edge It flows down to one side more easily.

That is, in the vane cooling plate 300, the inclined alignment of the bent line 312 of the plate member 310 is made more inclined than horizontal alignment so that the collected oil droplets can flow smoothly toward one side by their own weight It is.

As described above, in addition to the inclined orientation of the curved line 312 of the vane cooling plate 300, for example, the curved line of the vane cooling plate 300 may be oriented horizontally but inclined only at the lower edge thereof .

Although not shown in this case, it is possible to provide only the oil drainage collecting trough or the like on one side.

In addition, in the present invention, as shown in FIG. 5, it is also possible that the vane cooling plate 300 is further provided with a vertical drip guide bar 320.

The drip guide bar 320 may have a simple bar shape and may be provided perpendicularly to the lower end of the plate 310 of the vane cooling plate 300.

As shown in FIG. 5, if a plurality of drip guide bars 320 are provided at a predetermined interval as shown in FIG. 5, the oil droplets flowing down to the bottom edge through the outer surface of the plate 310 It may be dropped or removed from the position of the drip guide bar 320 or removed.

The oleophilic coating layer 311 may be formed on the outer surface of the plate 310 or the bent line 312 of the plate 310 may be inclined or a separate drip guide bar 320 may be additionally provided It is possible to more smoothly recover or remove the oil droplets captured on the plate member 310 of the vane cooling plate 300. [

Hereinafter, the operation of the present invention will be described with reference to the drawings.

1, the lubricating oil in the tank 20 is supplied to a turbine of a power generation facility requiring lubrication by an oil pump 40 or an engine of a large- Is supplied to the same mechanical device (30), and the lubricated lubricant is returned to the tank (20) together with the high temperature vapor through the return pipe (60).

The vapors returned to the tank 20 are positioned at the upper portion of the tank 20 and are discharged to the vapor flow path 10 by the separate blower 70.

In the middle of the vapor flow path 10, a heat exchange type vapor capture device according to the present invention is provided, and a refrigeration cycle 80 (see FIG. 1), which includes a compressor 81, a condenser 82, an expansion valve 83, and an evaporator 84 The low-temperature refrigerant circulates in the refrigerant duct 200 corresponding to the evaporator 84 in the first embodiment.

Accordingly, in the heat exchange type vapor collecting apparatus of the present invention, heat exchange is performed between the low temperature refrigerant flowing in the refrigerant duct 200 and the high temperature vapor passing through the casing 100.

Here, the casing 100 should have a duct shape in a power generation facility or the like, and may have a cylindrical pressure vessel shape as shown in FIG. 6 in a large ship.

The high-temperature vapor is condensed while rapidly passing through a plurality of plate materials 310 having a zigzag-like cross section maintaining a constant gap, and is consequently impregnated as an oil droplet on the outer surface of the plate material 310.

The oil droplet conceived on the plate member 310 flows down more smoothly by the lipophilic coating layer 311 and the inclined line 312 of the plate member 310 is inclined so that the flow of the oil droplet It can be smoothly guided to one side.

In addition, if the drip guide bar 320 is additionally formed at the bottom edge of the plate 310 of the vane cooling plate 300, the oil droplet flows down on the drip guide bar 320 to facilitate recovery and removal .

Therefore, the heat exchange type vapor collecting apparatus of the present invention is an invention having the following excellent advantages.

First, a compact structure in which a heat exchanger and an oil collecting module are integrated is provided in a power generating facility or a lubricating oil circulating system of a large ship, so that a high temperature vapor can be quickly condensed into oil droplets and recovered or removed. Thus, a lubricating oil circulating system The degree of freedom can be greatly improved.

Second, since the pressure loss of the vapor flow path 10 is very small, it is possible to treat a large amount of vaporized vapor within a short time, thereby increasing the merchantability and the market competitiveness.

Third, since the oil mist can be effectively collected from the vapor, it is possible to prevent the oil mist from being released to the atmosphere, thereby effectively preventing environmental pollution.

The above embodiment is an example for explaining the technical idea of the present invention specifically, and the scope of the present invention is not limited to the above-mentioned drawings or embodiments.

10: Vapor flow passage 20: Tank
30: Machinery 40: Oil pump
50: feed pipe 60: return pipe
70: blower 80: refrigeration cycle
81: compressor 82: condenser
83: Expansion valve 84: Evaporator
100: casing 200: refrigerant pipe
300: vane cooling plate 310: plate material
311: Coating layer 312:
320: Drip guide bar

Claims (4)

A casing in the shape of a duct or a cylindrical pressure vessel provided on a flow passage through which the vapor flows;
A refrigerant pipe which is piped in the casing and in which a low-temperature refrigerant circulates;
And a plurality of vane cooling plates having a cross sectional shape bent in a zigzag shape along the traveling direction of the vapor, the plurality of plate materials being arranged on the outer surface of the refrigerant conduit while maintaining a predetermined gap therebetween.
The bent curved line of the sheet material having a zigzag cross section in the vane cooling plate is inclined so that the collected oil droplets flow down to one side by their own weight;
Wherein the vane cooling plate is vertically provided with a drip guide bar to allow the dropped oil droplets to be removed or removed from the drip guide bar. The heat exchange type vapor capture device according to claim 1, wherein a lipophilic coating layer is further formed on an outer surface of the vane cooling plate. delete delete

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