KR101892119B1 - Apparatur for reducing white smoke - Google Patents

Abstract

The present invention relates to a composite type white smoke reducing apparatus. More particularly, the present invention relates to a composite type white smoke reducing apparatus capable of removing not only malodorous components but also substances causing white smoke such as oil mist. According to the embodiments of the present invention, by using a filter in which glass fibers and binding fibers are thermally fused to each other, the white smoke-causing substances such as oil mist can be effectively removed.

Description

[0001] APPARATUS FOR REDUCING WHITE SMOKE [0002]

The present invention relates to a composite type whitener reducing apparatus, and more particularly, to a composite type whitener reducing apparatus capable of removing not only malodorous components but also substances causing white smoke such as oil mist.

Gas emitted from industrial sites, such as dyeing complexes, contains not only bad odor components but also white smoke-causing substances such as oil mist.

Generally, the term "white smoke" means that a liquid or solid white matter having a particle size of about 0.1 μm to 1 μm is discharged in a suspended state in the air. Therefore, when these gases are directly discharged to the atmosphere, there is a controversy about the harmfulness of the substances causing white smoke, as well as a dislike of the white smoke itself and a problem of bad odor pollution.

Recently, as interest in air pollution becomes more and more concerned with the generation of fine dust, it is expected that there will be an increasing demand for a composite type white smoke reducing apparatus capable of removing not only odor components but also white smoke causing substances such as oil mist .

However, since the gas is discharged at the most high temperature in the industrial field, there is a problem that the absorption rate of the malodor component is low in the scrubber, and it is not preferable to provide a separate cooling facility in view of the miniaturization of the apparatus and the cost. In addition, since the oil mist of the white smoke causing material has a very small particle size, there is a problem that the scrubber is hardly absorbed in the water, and a filter can be used. However, a filter structure capable of efficiently removing the oil mist needs to be studied .

Korean Registered Patent No. 10-1239841 (Mar. 31, 2013, integrated smelting and odor treatment apparatus)

Embodiments of the present invention can provide a composite type whitener reducing apparatus capable of efficiently removing not only odor components but also substances which cause white smoke, such as oil mist, in the gas.

According to an aspect of the present invention, there is provided an air conditioner, comprising: a main body housing, in which gas is introduced into an inlet formed in a lower side surface and discharged to an outlet formed in an upper surface; A first heat exchanger disposed at the discharge port and performing heat exchange between the gas before being introduced into the inlet and the gas discharged to the discharge port; A scrubber disposed on the upper side of the inlet and having a plurality of through holes through which the gas passes, and a plurality of nozzles for spraying wash water on the upper surface of the prefabricated structure; A second heat exchanger disposed above the scrubber for cooling the gas by heat exchange with the cooling water; A second heat exchanger disposed above the first heat exchanger and adapted to remove water from the gas; And a filter disposed above the second heat exchanger for removing white smoke-causing substances such as oil mist from the gas, the filter comprising glass fibers and binding fibers, the binding fibers comprising a first material And a covering region made of a second material having a melting point lower than that of the first material and formed on the outer circumferential surface of the core region so that the glass fiber is thermally fused to the binding fiber by thermal fusion of the covering region Can be provided.

And a cooling tower for cooling the cooling water circulated to the second heat exchanger by latent heat of evaporation.

And a partition wall partitioning the inner space of the main body housing into upper and lower portions and having a plurality of through holes through which the plurality of the filters are connected to pass through the filter.

The filter may be formed in a hollow pillar shape having an open top surface connected to the through hole and having a closed bottom surface.

A plurality of hoppers disposed below the filter and collecting the oil filtered by the filter; And an oil tank through which the oil collected in the hopper is transferred and stored.

The first heat exchanger may be a plate heat exchanger.

A steam line connected to the discharge port for spraying high-temperature steam to the first heat exchanger; And a washing line connected to the discharge port, for spraying the washing water into the first heat exchanger.

According to the embodiments of the present invention, the temperature can be firstly lowered in the first heat exchanger before the gas is introduced into the inlet, so that the absorption rate of the malodorous component in the scrubber can be increased without a separate cooling facility, The relative humidity can be lowered and the white smoke can be reduced.

According to the embodiments of the present invention, the use of a prefabricated structure in the scrubber allows easy installation and dismounting, has a large specific surface area, has high efficiency, low pressure loss, and can be installed at a relatively fast flow rate. In addition, if clogging due to foreign matter occurs, it is possible to reinstall after cleaning, which is advantageous in reducing maintenance cost.

According to embodiments of the present invention, the temperature can be secondarily lowered in the second heat exchanger after the gas has passed through the scrubber, so that moisture in the gas can be condensed and removed.

According to the embodiments of the present invention, by using a filter in which the glass fibers and the binding fibers are thermally fused to each other, it is possible to efficiently remove the substances causing white smoke such as oil mist. Particularly, since the filter does not use a method of bonding with an adhesive or oil pressure for bonding between glass fibers, it is possible to solve the problem that the gas flow or the oil discharge is not blocked smoothly by the adhesive when the adhesive is used In the case of merely pressing by hydraulic pressure, the glass fibers are not properly fixed to each other, so that a sagging phenomenon due to oil condensation occurs, thereby eliminating the problem of forming a large pore through which the gas is not properly filtered.

1 is a view showing a composite type whitener reducing apparatus according to an embodiment of the present invention.
2 is a view of a first heat exchanger in accordance with an embodiment of the present invention.
FIG. 3 is a view showing a prefabricated structure of a scrubber according to an embodiment of the present invention.
4 is an enlarged view of a filter according to an embodiment of the present invention.
5 is a view showing another example of bonding of glass fibers according to an embodiment of the present invention.
6 is a view showing another example of bonding of glass fiber according to an embodiment of the present invention.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, when a component is referred to as "comprising ", it means that it can include other components as well, without excluding other components unless specifically stated otherwise.

In addition, the term " coupling or connection " does not mean that, in the contact relation between the respective components, only the physical contact is made between the respective components, but the other components are interposed between the respective components, To the extent that each component is in contact with each other.

The sizes and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a preferred embodiment of a composite type whitener reducing apparatus according to the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or corresponding components, A duplicate description will be omitted.

1 is a view showing a composite type whitener reducing apparatus according to an embodiment of the present invention.

Referring to FIG. 1, a composite type whitener reducing apparatus 10 according to an embodiment of the present invention includes a main body housing 100, a first heat exchanger 200, a scrubber 300, a second heat exchanger 400, Demisters 500 and 510, and a filter 600.

An inlet 110 may be formed in a lower side surface of the main body housing 100 and a discharge port 120 may be formed in an upper surface of the main body housing 100. The gas introduced through the inlet 110 may be purified while moving upward in the main body housing 100 and may be discharged to the atmosphere through the outlet 120.

The inlet 110 may be connected to an exhaust pipe 130 for transferring gas discharged from an industrial site, for example, a tenter facility of a dyeing complex.

The first heat exchanger 200 may be coupled to the main body housing 100 and disposed at the outlet 120.

The first heat exchanger 200 is connected to the exhaust pipe 130 so that heat exchange can be performed between the gas before being introduced into the inlet 110 and the gas discharged to the outlet 120. As a result, the gas can be primarily cooled before entering the inlet 110 and can be used to increase the temperature of the gas exiting the outlet 120.

2 is a view of a first heat exchanger in accordance with an embodiment of the present invention.

Referring to FIG. 2, the first heat exchanger 200 may be a plate-type heat exchanger in which inflow gas and exhaust gas flow alternately between a plurality of metal plates. The plate-type heat exchanger is better in heat exchange efficiency than the size, and may be suitable for installation in a small passage such as the discharge port 120.

The metal plate of the first heat exchanger 200 may be contaminated by residual oil mist in the gas. Therefore, the metal plate of the first heat exchanger 200 needs to be periodically cleaned.

Referring again to FIG. 1, a steam line 140 and a wash line 150 may be connected to the discharge port 120 to clean the first heat exchanger 200, respectively. The steam line 140 can inject high temperature steam to the first heat exchanger 200 and the washing line 150 can inject the high pressure washing water to the first heat exchanger 200. On the other hand, an opening / closing door (not shown) for opening / closing the discharge port 120 may be installed at the discharge port 120. When the high-temperature steam and the high-pressure washing water are sprayed while the discharge port 120 is closed by the opening / closing door, the filter 600 as well as the first heat exchanger 200 can be cleaned.

FIG. 3 is a view showing a prefabricated structure of a scrubber according to an embodiment of the present invention.

Referring to FIGS. 1 and 3, the scrubber 300 may include a plurality of nozzles 320 and a prefabricated structure 310.

The prefabricated structure 310 may be coupled to the body housing 100 and disposed above the inlet 110.

The prefabricated structure 310 may have a structure in which plate members having a plurality of through holes are vertically spaced from each other. The wash water injected from the plurality of nozzles 320 disposed on the upper side of the prefabricated structure 310 can flow along the surface of the prefabricated structure 310 and contact the gas to remove contaminants in the gas. The prefabricated structure 310 can increase the contact area between gas and wash water and thereby increase the rate of removal of contaminants. In particular, the prefabricated structure 310 has a prefabricated structure in which a plurality of plate members are stacked at a predetermined interval, rather than a structure in which a plurality of packings are randomly packed, thereby minimizing the pressure loss of the gas, Settlement and bridging phenomenon can be solved.
Each of the plate members includes a plate body on a rectangular plate on which holes arranged in a lattice form are formed, rods protruding downward at regular intervals on the bottom of the plate body, A plurality of blocks each of which protrudes upward from the center and has a fitting groove, a lower end of the corner of the plate body to be disposed at the plurality of block positions, And has a plurality of shim members.
The through holes are formed in a square hole, and each of the plate members forms an up-and-down distance according to the length of the bars in a stacked state.

A plurality of nozzles 320 may be coupled to the body housing 100 and disposed above the prefabricated structure 310.

The washing water sprayed from the plurality of nozzles 320 may be supplied from the washing water tank 330 provided separately from the main body housing 100.

The second heat exchanger 400 may be coupled to the main body housing 100 and disposed above the scrubber 300.

Cooling water may be supplied to the second heat exchanger 400, and the gas passing through the scrubber 300 may be secondarily cooled by the second heat exchanger 400. In the process, the moisture in the gas can condense and the condensed water can be lowered or removed by the demister 500, 510.

The second heat exchanger 400 may be a tubular heat exchanger in which a plurality of aluminum fins are coupled to the outer circumferential surface of cooling water, for example, a pipe through which water flows.

The cooling water whose temperature has risen by the heat exchange with the gas in the second heat exchanger 400 can be circulated to the cooling tower 410 and cooled to the ambient temperature.

The cooling tower 410 can lower the cooling water to the atmospheric temperature by causing the cooling water to flow downward from the upper part to the lower part in the form of droplets and vaporizing a part thereof by the blower.

The demisters 500 and 510 can remove moisture from the gas.

The demisters 500 and 510 may be coupled to the main body housing 100 and disposed above the second heat exchanger 400.

The first demister 500 may be disposed between the second heat exchanger 400 and the filter 600 and the second demister 510 may be disposed between the filter 600 and the first heat exchanger 200 As shown in FIG.

The filter 600 may be coupled to the body housing 100 and disposed above the second heat exchanger 400.

A plurality of filters 600 may be coupled to the partition 610 and the partition 610 may be coupled to the body housing 100 to divide the interior space of the body housing 100 up and down, A plurality of through holes 611 through which the gas passing through each filter 600 can pass may be formed in the partition wall 610.

The upper surface of the filter 600 may be opened and the lower surface thereof may be formed into a closed hollow pillar shape and the open top surface of the filter 600 may be connected to the through hole 611.

In the course of passing through the micropores of the lower surface and the side surface of the filter 600, the white smoke-causing substance such as oil mist in the gas may be filtered and the gas filtered by the filter 600 may be separated from the open upper surface of the filter 600 Through hole 611 and then to the discharge port 120 side.

4 is an enlarged view of a filter according to an embodiment of the present invention.

4, the fine pores of the filter 600 may be formed between a plurality of fibers constituting the filter 600, for example, a plurality of glass fibers 601 and a plurality of binding fibers 603. [

The glass fibers 601 may have a particle diameter of about 1 탆 to 10 탆, and the binding fibers 603 may have a particle diameter of about 10 탆 to 20 탆, but the present invention is not limited thereto.

The binding fibers 603 may include a core region formed along the central axis of the binding fibers 603 and a covering region formed on an outer peripheral surface of the core region. Here, the coated region may mean a coating layer formed on the outer peripheral surface of the core region. In particular, the second material constituting the coated region may have a lower melting point than the first material constituting the core region. As a result, when the glass fiber 601 and the binding fiber 603 are mixed and heated to a temperature between the melting point of the first material and the second material, the core region of the binding fiber 603 maintains the skeleton Only the covering region of the binding fibers 603 is thermally melted and the glass fibers 601 and the binding fibers 603 can be thermally fused to each other. The second material may be made of a thermoplastic resin.

5 is a view showing another example of bonding of glass fibers according to an embodiment of the present invention.

5, an adhesive 605 can be used to bond the glass fibers 601 to each other, but in such a case, the problem that the gas flow or oil discharge is interrupted by the adhesive 605 and is not smooth Lt; / RTI > In the present invention, such a problem can be solved by adopting a structure in which the glass fiber 601 and the binding fibers 603 are thermally fused.

6 is a view showing another example of bonding of glass fiber according to an embodiment of the present invention.

Referring to FIG. 6, a method of pressing the glass fibers 601 to each other by hydraulic pressure can be used. However, in this case, the glass fibers 601 are not fixed to each other, The sagging phenomenon of the glass fiber 601 may occur, which may result in the formation of a large pore through which the gas is not properly filtered. In the present invention, such a problem can be solved by adopting a structure in which the glass fiber 601 and the binding fibers 603 are thermally fused.

Referring to FIG. 1, a hopper 620 may be disposed on the lower side of the filter 600 to collect oil that is filtered by the filter 600 and is discharged downward by self-weight or high-temperature steam and washing water. The hopper 620 may be coupled to the body housing 100.

The hoppers 620 may be arranged one by one in each filter 600 so as not to disturb the gas flow.

The oil collected in the plurality of hoppers 620 can be transferred to and stored in the oil tank 630 through the pipe.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: Hybrid type white smoke reduction device
100: Body housing
110: inlet
120: Outlet
130: Exhaust pipe
140: Steam line
150: Cleaning line
200: first heat exchanger
300: Scrubber
310: Prefabricated structure
320: nozzle
330: Wash water tank
400: second heat exchanger
410: cooling tower
500, 510: Demister
600: filter
601: Glass fiber
603: Binding fiber
605: Adhesive
607: Oil
610:
611: Through hole
620: Hopper
630: Oil tank

Claims (7)

A main body housing for introducing gas into an inlet formed on a lower side surface and discharging the gas to an outlet formed on the upper surface;
A first heat exchanger disposed at the discharge port and performing heat exchange between the gas before being introduced into the inlet and the gas discharged to the discharge port;
A scrubber disposed on the upper side of the inlet and having a plurality of through holes through which the gas passes, and a plurality of nozzles for spraying wash water on the upper surface of the prefabricated structure;
A second heat exchanger disposed above the scrubber for cooling the gas by heat exchange with the cooling water;
And a filter disposed above the second heat exchanger for removing the white smoke-causing substance from the gas,
A first demister disposed between the second heat exchanger and the filter;
A second demister disposed between the filter and the first heat exchanger;
Wherein the filter comprises a plurality of glass fibers and a plurality of binding fibers, wherein the plurality of binding fibers comprise a core region made of a first material and a second material formed on an outer peripheral surface of the core region and having a melting point lower than that of the first material And the plurality of glass fibers are thermally fused to the plurality of binding fibers by thermal fusion of the covering region,
The fine pores of the filter are formed between the plurality of glass fibers and the plurality of binding fibers 603,
Wherein the plurality of glass fibers have a particle diameter of 1 占 퐉 to 10 占 퐉,
The plurality of binding fibers having a particle diameter of 10 mu m to 20 mu m,
The coating region is a coating layer formed on the outer peripheral surface of the core region,
The second material forming the covering region has a lower melting point than the first material forming the core region,
Wherein the plurality of glass fibers and the plurality of binding fibers are heated to a temperature between the melting point of the first material and the second material in a state where the plurality of glass fibers and the plurality of binding fibers are mixed, Only the covering region of the plurality of binding fibers is thermally melted so that the plurality of glass fibers and the plurality of binding fibers are thermally fused to each other,
Wherein the second material is made of a thermoplastic resin,
The white smoke causing material is an oil mist,
Further comprising a cooling tower for cooling the cooling water circulated to the second heat exchanger by latent heat of vaporization,
Further comprising partition walls partitioning the internal space of the main body housing into upper and lower portions and having a plurality of through holes through which the plurality of the filters are connected to pass through the filter,
Wherein the filter is formed in a hollow pillar shape having an open top surface connected to the through hole and having a closed bottom surface,
A plurality of hoppers disposed below the filter and collecting the oil filtered by the filter; And
Further comprising an oil tank in which the oil collected in the hopper is transferred and stored,
Wherein the first heat exchanger comprises a plate heat exchanger,
A steam line connected to the discharge port for spraying high-temperature steam to the first heat exchanger; And
Further comprising a washing line connected to the outlet and for spraying the washing water to the first heat exchanger,
Wherein the discharge port is provided with an opening / closing door for opening / closing the discharge port,
The first heat exchanger and the filter are cleaned when the high-temperature steam and the high-pressure washing water are sprayed while the outlet is closed by the opening / closing door,
Wherein the prefabricated structure has a laminated structure in which plate members having the plurality of through holes are vertically spaced from each other,
The washing water injected from the plurality of nozzles disposed on the upper side of the prefabricated structure contacts the gas while flowing along the surface of the prefabricated structure to remove contaminants in the gas,
The oil mist in the gas is filtered while passing through the micropores formed on the lower surface and the side surface of the filter,
The gas filtered by the filter passes through the open upper surface of the filter and the through hole in turn, and is moved to the outlet side,
Wherein each of the plate members comprises:
A plate body on a rectangular plate on which through holes arranged in a lattice shape are formed,
A plurality of protrusions protruding downward at a predetermined interval from a bottom surface of the plate body,
An upper end of the corner of the plate body, a plurality of blocks protruding upward from the center,
And a plurality of fitting members protruding downward from a center of the lower end of the corner portion of the plate body so as to be disposed at the plurality of block positions and being engageable with the fitting groove,
The through holes are formed in a square hole,
Wherein each of the plate members forms a vertical distance in accordance with the length of the bars in a stacked state.

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