KR101985693B1 - Apparatus for Simultaneous Removal of Tar and Dust with Gas Engine Application for Distributed Power Generation - Google Patents

Abstract

The present invention relates to a tar and dust removing apparatus applicable to a gas engine of a dispersed gasification type power generator, in which tar and dust are reduced in a separate electrostatic precipitator separate from a condenser, And the water content to be condensed is effective in forming a water film on the dust collecting pole to increase the dust collecting efficiency.

Description

Technical Field [0001] The present invention relates to a simultaneous removal of tar and dust from a gas engine for dispersed (small) gasification power generation,

The present invention relates to a technique for collecting tar and dust by simultaneously performing indirect cooling and dust collection in an electrostatic precipitator module, and more particularly, to a technique of collecting tar and dust by indirect cooling and dust collection in an electrostatic precipitator module, To a tar and dust removing apparatus applicable to a gas engine of a dispersed gasification power generation including an inlet and an outlet for the inflow and discharge of condensed water for condensing tar.

Recently, the need for decentralized power generation is increasing in domestic and foreign countries, especially in countries where biomass is abundant but power is insufficient. In order to develop the producer gas produced by the biomass gasification system using gas engine, A technique is required to do this.

However, when the tar in the producer gas is not sufficiently removed before application to the gas engine, a problem is caused by the tar generated at the inlet of the gas engine. To solve this problem, the conventional technology uses a scrubber to cool the producer gas, Gas tar and dust are reduced.

However, the conventional technology of the above-mentioned method has a problem that the amount of waste water generated is very large due to the use of a large amount of water for direct injection, and BAT (Best available technology) technology, which is expensive in thermal power plants due to strengthened fine dust emission, For example, wet electrostatic precipitators.

The wet electrostatic precipitator is a device that continuously supplies water to the surface of the dust collecting electrode of the electrostatic precipitator to form a water film thereby to wash away the dust adhered to the electrode surface. Since the electrode surface is always cleaned, a strong electric field is obtained And it can prevent reversal and re-scattering, and the gas throughput is about twice as high as that of dry type.

Korean Patent Registration No. 10-1187926 Korean Patent Publication No. 10-2017-0076948 Korean Patent Registration No. 10-1153008 Korean Patent Registration No. 10-0708544

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and the technical problems required from the past.

The inventors of the present application have conducted intensive research and various experiments, and in order to solve the above problems, an object of the present invention is to collect tar and dust by simultaneously performing indirect cooling and dust collection in an electrostatic precipitator module.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a gas turbine engine having a housing, an inlet for introducing a syngas formed in a lower portion of the housing, A discharge electrode to be charged with a charge of a fishbone formed on the central axis of the housing, a condensed water inlet through which condensed water for condensing the tar in the introduced synthetic gas flows, And a condensed water discharge port through which the condensed water formed in the lower part is discharged.

Also, the housing may be applied with a '+' charge.

In addition, the discharge electrode may be formed as a pipe-shaped center bar.

A plurality of projecting pins may be formed on the outer side of the center bar.

In addition, at least one of the projecting pins may be formed at the same position in the vertical direction of the center bar.

The projecting pin may be formed at an angle with respect to the center line and the parallel line on the inner surface of the housing.

A dust collecting plate for collecting the charged condensed tar and dust in the syngas may be formed on the inner surface of the housing.

Further, the dust collecting plate may be formed between positions where the projecting pins are formed in the vertical direction.

In addition, the discharge electrode may be coupled through an insulator formed on the upper portion of the housing.

As described above, the effect of the present invention with the above-described structure is that the reduced tar and dust in the separate electrostatic precipitator and the separate electrostatic precipitator can proceed in one space, so that the installation area can be reduced, The water content can act to enhance the dust collection efficiency by forming a water film on the dust collecting pole.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

FIG. 1 is a cross-sectional view showing a power source connected to a dispersing type tar dust removing device.
2 is a cross-sectional view of an apparatus including a heat exchanger in accordance with an embodiment of the present invention.
FIG. 3 is an enlarged view showing a flow of condensed water and a gas flow in the projecting pin and the dust collecting plate portion provided in the interior of the present invention.
FIG. 4 is a sectional view taken along line AA 'of FIG. 1 or FIG. 2 of the present invention.
5 and 6 are perspective views in the form of projecting pins according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings. Throughout the specification, when a part is connected to another part, it includes not only a case where it is directly connected but also a case where the other part is indirectly connected with another part in between. In addition, the inclusion of an element does not exclude other elements, but may include other elements, unless specifically stated otherwise.

The present invention will be described in detail with reference to the drawings.

FIG. 1 is a cross-sectional view of the charge / discharge apparatus 100 applied to a gas engine for dispersed gasification power generation, and FIG. 2 is a cross-sectional view of a heat exchanger 400 according to an embodiment of the present invention. FIG. 3 is an enlarged view showing the flow of condensed water and the flow of gas in the portion of the dust collecting plate 170 and the projecting pin 160 provided inside the present invention, and FIG. 4 is a cross- Sectional view.

As shown in FIG. 1, a tar / dust simultaneous removal apparatus 100 applicable to a gas engine for a dispersed gasification power generator of the present invention includes a housing 110; An inlet 120 through which the synthesis gas flows into the lower portion of the housing; An outlet 130 through which the syngas formed in the upper portion of the housing flows out; A discharge electrode 150 applied with a charge of '-' in the form of a fishbone formed on the central axis of the housing; A condensate inlet 310 into which condensed water for condensing the tar in the synthesis gas flows; And a condensed water discharge port 320 through which condensed water formed at a lower portion of the housing is discharged.

A fishball-shaped discharge electrode formed on the central axis of the housing 100 may be applied as a '+' charge, whereas a '-' charge may be applied to the housing.

The discharge electrode 150 may be formed of a pipe-shaped center bar 140.

A plurality of protruding pins 160 may be formed on the outer side of the discharge electrode center bar 140.

At least one protrusion pin 160 may be formed at the same position as the vertical direction of the center bar 140.

The projecting pin 160 may be formed at a predetermined angle with respect to a parallel line on the inner surface of the center bar 140 and the housing 100.

A dust collecting plate 170 for collecting the charged condensed tar and dust in the syngas may be formed on the inner surface of the housing 100.

The dust collecting plate may be formed between positions where the projecting pins are formed in the vertical direction.

The discharge electrode 150 may be coupled through an insulator 180 formed on the upper portion of the housing.

The inlet may be formed on the side and / or the bottom of the housing 100. When the lower end of the housing is formed, a venturi-shaped lower side structure may be formed and the introduced synthesis gas may flow into the housing dust collector with a relatively high flow rate.

When the housing is formed on the side of the housing, a plurality of inlets may be formed on the side surface of the housing in the direction of contact with the housing to form a swirl, and may be designed to be introduced into the dust collection unit of the housing.

As shown in FIG. 2, a heat exchanger 400 capable of performing heat exchange with the high-temperature synthesis gas may be formed at a front end of the inlet.

It is to be understood that the heat exchanger 400 may be a countercurrent type, a cocurrent type, a pin type, or the like.

When the inlet 120 is formed on the side surface, a fluid heat exchanging part 300 capable of circulating to the lower end of the housing may be formed.

The fluid heat exchanging unit circulates the condensed water storage tank 330 formed at the inside and the outside of the housing at a constant flow rate, thereby reducing the temperature of the syngas and removing dust and the like of the syngas.

The condensate reservoir 330 may further include a pump 340 for circulating the condensed water.

The fluid flow rate of the fluid heat exchanging part 300 may be 0.01 m / sec to 1 m / sec, and preferably 0.03 m / sec to 0.8 m / sec.

If the flow rate is larger or smaller than the above-mentioned flow rate, it is not possible to obtain a proper synthesis gas temperature reduction and dust removal efficiency.

The heat exchanger 400 and the fluid heat exchanger 300 may be formed independently or simultaneously.

The outlet 130 may be formed at the upper end of the housing or at a side of the housing.

When formed at the upper end of the housing 100, it is possible to form a venturi-type correlated bottom structure and design the outflow of the introduced synthesis gas at a relatively high flow rate.

When formed on the side surface of the housing 100, a plurality of outflow ports may be formed in the side of the housing so as to be connected to the outside of the housing.

The outlet (130) may be formed in an annular shape around the insulator (180).

The projecting pin 160 may be connected to the center bar 140 in a welded manner.

The projecting pin 160 may be radially formed in the inner surface of the housing 100.

The projecting pins 160 formed on the center bar 40 may be formed in a plurality of vertical directions.

The length of the protrusion pin 160 formed in the vertical direction may be increased from the upper portion of the housing 100 to the lower portion thereof.

The projecting pin 160 may be formed at an angle downward with respect to a parallel line, and preferably the angle may be more than 0 degrees and less than 90 degrees, more preferably more than 15 degrees and less than 75 degrees And more preferably from 30 degrees or more to 45 degrees or less.

The smooth tar and dust removal efficiency of the syngas can not be obtained when the angle range is out of the range.

In addition, the discharge electrode 150 may be formed with a plurality of protruding fins 160 in a direction perpendicular to the center bar 140 as a symmetrical center bar.

The projecting pin 160 may have any one or more of triangular, rectangular, polygonal, and amorphous shapes.

The tip of the projecting pin 160 may be in the form of a saw tooth.

The dust collecting plate 170 may have any one or more of triangular, rectangular, polygonal, and amorphous shapes.

The dust collecting plate 170 may be radially formed in the inner surface of the housing.

A plurality of dust collecting plates 170 formed on the inner surface of the housing 100 may be formed in the vertical direction.

The length of the dust collecting plate 170 formed in the vertical direction may be increased from the upper portion of the housing 100 to the lower portion thereof.

The dust collecting plate 170 may be formed at an angle with respect to the center bar 140 and a parallel line on the inner surface of the housing 100.

The dust collecting plate 170 may be formed at an angle downward with respect to a parallel line, and preferably the angle may be more than 0 degrees and less than 90 degrees, more preferably more than 15 degrees and less than 75 degrees , More preferably not less than 30 degrees and not more than 45 degrees.

The smooth tar and dust removal efficiency of the syngas can not be obtained when the angle range is out of the range.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be.

It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

100: tar / dust removal device
110: Housing
120: inlet
130: Outlet
140: Center bar
150:
160: projecting pin
170: Collecting plate
180: Insane
200: Charging device
300: fluid heat exchanger
310: Condensate inlet
320: Condensate outlet
330: Condensate storage tank
340: pump
400: heat exchanger

Claims (9)

housing;
An inlet through which the synthesis gas formed in the lower portion of the housing flows;
An outlet through which the synthesis gas formed in the upper portion of the housing flows out;
A discharge electrode applied with a charge of '-' in the form of a fishbone formed on the central axis of the housing;
A condensed water inlet through which condensed water for condensing the tar in the introduced synthesis gas flows; And
And a condensed water discharge port through which condensed water formed in a lower portion of the housing is discharged
The discharge electrode is formed as a pipe-shaped center bar,
A plurality of protruding fins are formed outside the center bar,
A dust collecting plate for collecting the charged condensed tar and dust in the syngas is formed on the inner surface of the housing,
Wherein the dust collecting plate is formed between positions where the projecting pins are formed in the vertical direction,
The dust collecting plate has a triangular shape,
The length of the dust collecting plate formed in the vertical direction is increased from the upper portion to the lower portion of the housing,
Wherein the dust collecting plate is formed in a range of 30 degrees to 45 degrees with respect to a parallel line on the inner surface of the housing and the center bar.
The method according to claim 1,
Wherein the housing is applied with a positive charge. ≪ RTI ID = 0.0 > 14. < / RTI >
delete delete The method according to claim 1,
Wherein at least one of the projecting pins is formed at the same position in the vertical direction of the center bar.
The method according to claim 1,
Wherein the projecting pin is formed at an angle with respect to a parallel line on the inner surface of the housing and the center bar.
delete delete The method according to claim 1,
And the discharge electrode is coupled through an insulator formed on the upper portion of the housing. The tar and dust removing apparatus applicable to the gas engine of the dispersed gasification power generation.

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