KR101484648B1 - Gas filtering device - Google Patents

Abstract

The present invention relates to a wet gas purification device comprising: an ejecting unit having, at one side, a gas inlet for introducing gas containing foreign materials and having, at the other side, a fluid inlet for introducing fluid to capture foreign materials; a coupler extending from the ejecting unit and imparting straightness to the introduced gas and fluid; a Venturi tube extending from the coupler and making the foreign materials adsorbed to the fluid by reducing the transfer speed of the moving gas and fluid; and an eddy generation part for improving the adsorption of the foreign materials by enabling the gas and the fluid, which move along the Venturi tube, to generate eddies. In contrast to traditional techniques, the present invention can improve the purity of gas by enabling the fluid to capture foreign materials contained in pyrolysis gas, can increase the purification performance of foreign materials by inducing active contact between gas and fluid inside the wet gas purification device for capturing foreign materials and can increase the amount of captured foreign materials.

Description

[0001] GAS FILTERING DEVICE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet scrubbing apparatus, and more particularly, to a scrubbing apparatus for scrubbing a gas, To increase the detergency of the foreign substance and to improve the amount of foreign substances to be trapped.

Generally, the waste is completely burned in the incinerator, and the high heat generated by the incineration of the waste is used for the heating and hot water supply of houses or facilities around the incinerator. Incineration systems, however, require an incinerator with an air pollution control system to reduce dioxins, furans and volatile organic compounds (VOCs) below regulatory levels, and it is problematic to dispose of hazardous ash containing heavy metals.

Plasma pyrolysis and melting methods have been developed as methods for improving these incineration problems. According to US Pat. No. 5,280,757 (filed on Jan. 25, 1994, entitled "MUNICIPAL SOLID WASTE DISPOSAL PROCESS"), the plasma pyrolysis process has a remarkable advantage of plasma heating suitable for pyrolysis and vitrification of waste, Has received considerable attention as a useful waste disposal apparatus compared to combustion. The plasma torch generates an extremely hot spark by applying a high pressure arc to the ionized plasma gas. According to this, by using a plasma torch, that is, an ultra-high-temperature plasma generated by a plasma generator, a high-temperature environment in the range of usually 4,000 ° C. to 7,000 ° C. can be created. In such a high- Not only the reaction of the process is promoted, but also the reaction which is impossible in the low-temperature combustion flame or the oxyacetylene flame by the conventional method becomes possible. As a prior art in which foreign matter contained in pyrolysis gas is sprayed and collected in a spray state, it is disclosed in Korean Patent No. 10-0237737 (filed on Oct. 11, 1999, entitled " Spraying Apparatus Using Swirl Flow, A mixing device and an absorption cleaning device).

Such a plasma pyrolysis apparatus has a problem that the collecting force is reduced because the injected fluid can not sufficiently collect the noxious gas particles. Therefore, there is a need to improve this.

The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for cleaning a wet gas cleaning apparatus for collecting foreign matter contained in a pyrolysis gas introduced into a wet gas scrubber, The purpose of the device is to provide.

The present invention relates to a wet type gas cleaning apparatus for generating a vortex in a gas and a fluid to be discharged from a wet gas scrubber and thereby increasing the cleaning power of a foreign substance by inducing vigorous contact between the gas and the fluid, The purpose is to provide.

An apparatus for cleaning a wet type gas according to the present invention includes: an ejecting unit having a gas inlet through which a gas containing a foreign substance flows in one side and a fluid inlet through which a fluid flows to collect the foreign substance; A coupler extending from the ejecting unit and imparting a straightness to the base and the fluid; A venturi tube extending to the coupler and reducing a transfer speed of the fluid and the fluid to be introduced to induce the foreign matter to be adsorbed to the fluid; And a vortex generating unit for generating the vortex flow of the gas flowing along the venturi tube and the fluid to improve the adsorption of the foreign matter.

The ejecting unit may include a nozzle for spraying the fluid.

A body inserted into the other side of the ejecting unit and passing through the supply hole to supply and guide the fluid to the ejecting unit; An insert member inserted into the supply hole and having a fine hole for discharging the fluid while atomizing the fluid; And an auxiliary fine member extending on one side of the inner surface of the fine hole and forming a free end on the other side to improve the degree of fineness of the fluid discharged into the ejecting unit.

The nozzle may further include a buffer space formed between the circumferential surface of the insert member and the inner surface of the body to allow expansion of the insert member due to an increase in internal pressure of the minute hole.

The venturi pipe may be formed on the circumferential surface with a pocket for supplying cooling water to heat exchange with the gas supplied to the inside.

The vortex generation portion includes a plate member protruding from a side surface of the venturi tube to increase a vortex flow strength of the fluid.

The vortex generating unit includes: a fitting protrusion protruding from the plate member, the fitting protrusion being inserted into the mounting hole of the venturi pipe at an inner side of the venturi pipe; And a hook having an insertion groove portion for accommodating the fitting projection and for fitting the fitting hole outside the venturi tube.

The hook may be provided with a handle so that it can be held when removed from the venturi pipe.

As described above, the wet-type gas cleaning apparatus according to the present invention improves the purity of the gas by collecting foreign matter contained in the pyrolysis gas introduced into the wet-type gas scrubber, while spraying the fluid in the spray state have.

The present invention generates a vortex in a gas and a fluid to be discharged from the wet gas scrubber, thereby inducing active contact between the gas and the fluid, thereby increasing the detergency of the foreign matter and improving the amount of foreign matter trapped.

1 is a perspective view of a wet scrubbing apparatus according to an embodiment of the present invention.
2 is a front view of a wet scrubbing apparatus according to an embodiment of the present invention.
3 is a longitudinal sectional view of a wet gas cleaning apparatus according to an embodiment of the present invention.
4 is an enlarged cross-sectional view of a nozzle of a wet scrubbing apparatus according to an embodiment of the present invention.
5 is an enlarged cross-sectional view of a vortex generator of a wet gas scrubber according to an embodiment of the present invention.
6 is a perspective view of a wet scrubbing apparatus according to another embodiment of the present invention.
7 is a longitudinal sectional view of a wet gas cleaning apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of a wet gas cleaning apparatus according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention or custom of the operator, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view of a wet gas cleaning apparatus according to an embodiment of the present invention, FIG. 2 is a front view of a wet gas cleaning apparatus according to an embodiment of the present invention, and FIG. 3 is a cross- 1 is a longitudinal sectional view of a gas cleaning apparatus.

FIG. 4 is an enlarged cross-sectional view of a nozzle of a wet scrubbing apparatus according to an embodiment of the present invention, and FIG. 5 is an enlarged sectional view of a scrubbing section of a wet scrubbing apparatus according to an embodiment of the present invention.

1 to 5, a wet gas cleaning apparatus according to an embodiment of the present invention includes an ejecting unit 10, a coupler 30, a venturi pipe 40, and a vortex generating unit 100 do.

Particularly, the wet gas cleaning apparatus according to the present invention is a facility for separating foreign matter contained in a pyrolysis gas generated in an incinerator or the like. Here, 'foreign substances' are ashes, dioxins, furans and volatile organic compounds.

The ejecting unit (10) forms a gas inlet (12) at one side through which a gas containing a foreign substance flows. The ejecting unit 10 has a tubular shape that is opened to both sides, and can be applied to various materials. In particular, the gas inlet 12 may be formed at various positions of the ejecting unit 10, and is conveniently shown as being connected in the center direction of the hollow at the circumferential surface of the ejecting unit 10. That is, the gas containing the foreign substance is supplied to the hollow interior through the circumferential surface of the ejecting unit 10.

In addition, the ejecting unit 10 forms the fluid inlet 14 so that the fluid flows into the other side. The fluid inlet 14 may be formed at various positions of the ejecting unit 10 and is conveniently provided on the open upper side of the ejecting unit 10.

Thus, the fluid is forcibly supplied to the inside of the ejecting unit 10 through the fluid inlet 14, and sets the flow direction of the gas in the transport direction. That is, the gas containing the foreign substance and the fluid are mixed in the ejecting unit 10 and conveyed to the open lower side of the ejecting unit 10.

In particular, the central axis of the gas inlet 12 may be disposed perpendicularly to the central axis of the fluid inlet 14, or may be disposed obliquely, except vertically. Further, the fluid introduced into the fluid inlet 14 can be supplied in a liquid state or in a spray state without limiting the supply pressure. Further, the fluid can be applied in various ways such as water.

In addition, the coupler 30 serves to impart a linearity to the gas and the fluid to be transported to the open lower side of the ejecting unit 10. That is, the gas and the fluid supplied to the inside of the ejecting unit 10 from different directions are conveyed in the direction of the central axis of the ejecting unit 10 by the coupler 30 after mixing. Accordingly, the coupler 30 is extended to the open lower side of the ejecting unit 10. Of course, the coupler 30 may be integrally formed with the ejecting unit 10, or may be detachably provided with the ejecting unit 10.

The venturi tube 40 extends below the coupler 30. That is, the venturi pipe 40 is connected to the coupler 30 such that the central axes thereof are aligned with each other. Then, the venturi pipe (40) is gradually enlarged along the direction of gas and fluid transfer. Thus, the venturi tube 40 serves to reduce the feed rate of gas and fluid flowing according to Bernoulli's law. As a result, a space is provided so that foreign matter contained in the gas is adsorbed on the fluid.

Of course, the venturi tube 40 may be detachably coupled to the coupler 30 or may be integrally formed with the coupler 30.

On the other hand, the vortex generator 100 generates a vortex flow between the gas and the fluid flowing along the venturi tube 40, thereby improving the adsorption of the foreign matter. That is, the vortex generator 100 strongly induces a vortex flow in the gas and the fluid, thereby inducing vigorous contact of the fluid inside the venturi tube 40, thereby increasing the detergency of the foreign matter and improving the amount of foreign matter collected.

In particular, the ejecting unit 10 has a nozzle 20 for spraying the fluid. In other words, the nozzle 20 functions to induce spraying of the fluid discharged into the ejecting unit 10. At this time, when the fluid initially flows into the nozzle 20 in a spray state, it further functions to atomize it, and plays a role of atomizing the liquid when it flows into the nozzle 20 in an initial state.

In particular, the nozzle 20 includes a body 22, an insert member 24 and an auxiliary particulate member 26.

The body 22 is inserted into the other side of the ejecting unit 10, that is, the open upper side of the ejecting unit 10, and the supply hole 23 is opened to feed the fluid to the ejecting unit 10 . Therefore, the body 22 is formed in a tubular shape. Of course, the body 22 can be applied in various shapes and various materials.

Particularly, the body 22 can be inserted into the ejecting unit 10 to a position corresponding to the center axis of the gas inlet 12. This is so that the fluid can be stably supplied into the ejecting unit 10 without being influenced by the gas.

The insert member 24 is inserted into the supply hole 23 and forms a fine hole 25 for discharging the fluid while atomizing the fluid. Of course, the body 22 may be made to have the fine holes 25. At this time, the diameter and the number of the fine holes 25 are not limited.

In addition, the auxiliary fine particles 26 extend from the inner surface of the fine hole 25 on one side and form free ends on the other side. Then, the auxiliary fine particles 26 extend in the fluid transportation direction. Thus, the auxiliary fine particles 26 are vibrated (shaken) by the fluid to be transported. This further improves the degree of fineness of the fluid discharged into the ejecting unit (10). Of course, the thickness, number and shape of the auxiliary fine particles 26 are not limited.

At this time, the auxiliary particulate member 26 is integrally made of the insert member 24, and the insert member 24 can be made of rubber or resin so that the auxiliary particulate member 26 can generate sufficient vibration.

Further, as the fluid is supplied to the fine holes 25 and vibration is generated by the auxiliary fine particles 26, the flow resistance of the fluid conveyed by the auxiliary fine particles 26 is generated in the fine holes 25 , The insert member 24 generates excessive pressure at the supply side of the fluid.

Thus, the nozzle 20 further includes a buffer space 28. [ The buffer space 28 is formed between the circumferential surface of the insert member 24 and the inner surface of the body 22 and serves to allow the expansion of the insert member 24 due to an increase in the internal pressure of the fine holes 25. [

That is, the insert member 24 may expand in the direction of the cushioning space 28 when an excessive pressure is generated at the supply side of the fluid. The insert member 24 is inflated and expanded to the inner space to maintain the pressure or reduce the pressure. Of course, the buffer space 28 may be formed within the periphery of the insert member 24, and the internal volume may be varied. In addition, the insert member 24 is made of a material that can be sufficiently expanded.

The vortex generator 100 includes a plate member 110 protruding from the inner surface of the venturi tube 40 to increase the eddy current strength of the fluid. At this time, the plate member 110 is formed in a plate shape so that the fluid to be transferred and the gas can collide with each other, and the plate member 110 can be formed in various shapes such as a flat plate and a curved sheet. In addition, the plate may be disposed perpendicular or inclined with respect to the direction of transport of the fluid. Of course, the arrangement and the number of the plate members 110 are not limited.

The fluid and the gas collide with the plate member 110 and are countercurrently or radially spread to form a vortex hard so as to induce vigorous contact of the fluid inside the venturi pipe 40 to increase the detergency of the foreign matter, .

Thus, the fluid is further atomized by collision with the plate member 110, and the foreign matter separates from the gas and is collected in the fluid as much as possible.

In addition, the plate member 110 can control the eddy intensity of the gas and the fluid to be adjustable, and can be detachably coupled to the venturi pipe 40. [

Therefore, the vortex generating unit 100 further includes the fitting protrusion 120 and the hook 130. [

The fitting protrusions 120 protrude from the plate member 110 and are inserted into the mounting holes 42 of the venturi pipe 40, respectively. That is, the fitting protrusions 120 are inserted inwardly from the inside of the venturi pipe 40. Here, a plurality of mounting holes 42 are formed on the circumferential surface of the venturi pipe 40.

The hook 130 is inserted into the mounting hole 42 from the outside of the venturi pipe 40. At this time, the hook 130 forms the fitting groove portion 132 to accommodate the fitting protrusion 120 forcibly.

Of course, the hook 130 may be formed in various shapes, and the number of the fitting protrusions 120 and the fitting groove portions 132 is not limited. Further, the hook 130 is forcedly or bolted to the mounting hole 42 so as not to be separated by the pressure inside the venturi pipe 40.

In addition, the hook 130 may have a handle 140 to be held when removed from the venturi pipe 40. The handle 140 can be deformed into various shapes.

On the other hand, the fluid from which the foreign substance is separated and the fluid aggregated with the foreign matter is conveyed to the set position, not shown.

FIG. 6 is a perspective view of a wet scrubbing apparatus according to another embodiment of the present invention, and FIG. 7 is a longitudinal sectional view of a wet scrubbing apparatus according to another embodiment of the present invention.

6 and 7, the wet gas cleaning apparatus according to another embodiment of the present invention includes an ejecting unit 10, a coupler 30, a venturi pipe 40, and a vortex generating unit 100 do.

The ejecting unit 10, the coupler 30, and the vortex generator 100 are replaced with the above.

The venturi pipe (40) may have a pocket (200) on its circumferential surface to supply cooling water for heat exchange with the gas supplied therein. The pockets (200) are formed by spirally winding along the circumferential surface of the venturi pipe (40), and the cooling water is conveyed and guided. Therefore, the gas inside the venturi pipe 40 is heat-exchanged with the cooling water, and the temperature is reduced as the heat is taken away. As a result, foreign matter contained in the gas can be sufficiently agglomerated in the atomized fluid. The pocket 200 can be formed in various shapes and is made of various materials having excellent thermal conductivity.

Particularly, the venturi pipe 40 is made of a material having a high thermal conductivity.

The reference numerals not described are replaced with those described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill 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. I will understand. Accordingly, the true scope of the present invention should be determined by the following claims.

10: ejecting unit 12: gas inlet
14: fluid inlet 20: nozzle
22: body 23: supply hole
24: insert member 25: fine hole
26: auxiliary particulate member 28: buffer space
30: Coupler 40: Venturi tube
42: mounting hole 100: vortex generating part
110: plate member 120: fitting projection
130: hook 132: fitting groove
140: handle 200: pocket

Claims (7)

An ejecting unit having a gas inlet for introducing a gas containing a foreign substance into one side and a fluid inlet for introducing a fluid to capture the foreign substance; A coupler extending from the ejecting unit and imparting a straightness to the base and the fluid; A venturi tube extending to the coupler and reducing a transfer speed of the fluid and the fluid to be introduced to induce the foreign matter to be adsorbed to the fluid; And a vortex generating unit for generating a vortex flow of the gas flowing along the venturi pipe and the fluid to improve adsorption of the foreign matter,
Wherein the vortex generating portion includes a plate member protruding from a side surface of the venturi tube to increase swirling strength of the fluid,
The vortex generating unit includes: a fitting protrusion protruding from the plate member, the fitting protrusion being inserted into the mounting hole of the venturi pipe at an inner side of the venturi pipe; And
Further comprising a hook having an insertion groove portion for accommodating the fitting projection and for fitting the mounting hole outside the venturi tube.
The method according to claim 1,
Wherein the ejecting unit comprises a nozzle for spraying the fluid.
3. The apparatus according to claim 2,
A body inserted into the other side of the ejecting unit and passing through the supply hole to supply and guide the fluid to the ejecting unit;
An insert member inserted into the supply hole and having a fine hole for discharging the fluid while atomizing the fluid; And
And an auxiliary fine member extending from an inner surface of the fine hole at one side and forming a free end at the other side to improve the degree of fineness of the fluid discharged into the ejecting unit.
The method of claim 3,
Wherein the nozzle further comprises a buffer space formed between the circumferential surface of the insert member and the inner surface of the body to allow expansion of the insert member due to an increase in internal pressure of the micro hole.
The method according to claim 1,
Wherein the venturi pipe is formed on a circumferential surface of a pocket for supplying cooling water to heat exchange with the gas supplied to the inside.
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