KR101763494B1 - Burner for apparatus of destruction for waste refrigerant - Google Patents

Burner for apparatus of destruction for waste refrigerant Download PDF

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Publication number
KR101763494B1
KR101763494B1 KR1020150190779A KR20150190779A KR101763494B1 KR 101763494 B1 KR101763494 B1 KR 101763494B1 KR 1020150190779 A KR1020150190779 A KR 1020150190779A KR 20150190779 A KR20150190779 A KR 20150190779A KR 101763494 B1 KR101763494 B1 KR 101763494B1
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KR
South Korea
Prior art keywords
waste refrigerant
waste
refrigerant
air
fuel injection
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KR1020150190779A
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Korean (ko)
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KR20170079807A (en
Inventor
엄태인
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한밭대학교 산학협력단
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Priority to KR1020150190779A priority Critical patent/KR101763494B1/en
Publication of KR20170079807A publication Critical patent/KR20170079807A/en
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Publication of KR101763494B1 publication Critical patent/KR101763494B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/68—Treating the combustion air or gas, e.g. by filtering, or moistening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/30—Pyrolysing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/10—Liquid waste

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Incineration Of Waste (AREA)

Abstract

A burner for a waste refrigerant destroying apparatus according to the present invention comprises: a fuel injection pipe provided with a fuel injection nozzle at a front end thereof, A waste refrigerant supply pipe constituted by a hollow tubular inner tube surrounding the periphery of the fuel injection pipe and a hollow tubular outer tube surrounding and enclosing the inner pipe to form a waste refrigerant flow path through which waste refrigerant flows; A waste refrigerant jet nozzle connected to the front end of the waste refrigerant supply pipe in such a manner as to communicate with the waste refrigerant flow path and spraying the waste refrigerant and having an inclined surface guiding the waste refrigerant to be sprayed toward the center axis of the waste refrigerant supply pipe; And an air supply unit interposed between the fuel injection pipe and the waste refrigerant supply pipe to supply combustion air from the outside and inject the air to join the injected fuel; And an ignition device for igniting the spark by using the injected fuel and air. The burner for the waste refrigerant destroying apparatus according to the present invention may have an inclined surface at the end of the waste refrigerant spraying nozzle to concentrate the waste refrigerant sprayed on the deepest point of the flame, thereby improving the pyrolysis efficiency of the waste refrigerant . Also, since the injection port of the waste refrigerant spraying nozzle is partially closed to prevent the waste refrigerant completely blocking the path of the flame, the flame can be stably ignited and the waste refrigerant can easily reach the deep portion of the flame.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a burner for apparatus for destroying waste refrigerant,

TECHNICAL FIELD The present invention relates to a burner for a waste refrigerant destruction apparatus, and more particularly, to a burner for a waste refrigerant destruction apparatus that thermally decomposes a waste refrigerant into a flame.

At present, refrigerants such as CFC (chlorofluorocarbon) and HFC (hydrogen fluoride) are essentially used in refrigeration apparatuses such as automobiles, refrigerators, and air conditioners, and are discarded together with waste refrigerants as a result of disposal of automobiles and household appliances.

In particular, since the adoption of the Montreal Protocol on ozone depleting substances in 1987, HFCs (hydrofluorocarbons) without chlorine have been replaced by CFCs and HCFCs, which have been widely used as refrigerator refrigerants, spraying agents for spraying and urethane foaming agents. As the use of series refrigerants increases, the disposal amount of HFCs in the air is rapidly increasing.

However, if the HFCs are discharged into the air without appropriate treatment, they may become the main cause of ozone depletion and global warming, and it is essential to carry out proper disposal process.

For this reason, research and development for environmentally friendly disposal of waste refrigerants including HFCs are required.

As a conventional waste disposal technique for waste refrigerant, a pyrolysis method for thermally decomposing a waste refrigerant at a high temperature of 900 DEG C or more is used, and Korean Patent Laid-Open Publication No. 2011-0023253 is disclosed as a related art. Here, an apparatus and a method for burning and processing waste refrigerant together with solid waste are provided.

However, in order to maintain the internal temperature of the incinerator at 900 ° C or higher, a large amount of auxiliary fuel is required and the amount of energy used is large. Further, in the combustion process, the waste refrigerant and the flame do not come into contact with each other accurately, and decomposition of the waste refrigerant may not be performed properly.

In addition, there is a problem that the combustion equipment is corroded and damaged by the high concentration of hydrogen fluoride gas discharged in the thermal decomposition process.

The present invention has been made to solve the above problems, and it is an object of the present invention to provide a burner for a waste refrigerant destruction apparatus capable of discharging impurities generated in a thermal decomposition process in a safe state, And the like.

A burner for a waste refrigerant destroying apparatus according to the present invention comprises: a fuel injection pipe provided with a fuel injection nozzle at a front end thereof, A waste refrigerant supply pipe constituted by a hollow tubular inner tube surrounding the periphery of the fuel injection pipe and a hollow tubular outer tube surrounding and enclosing the inner pipe to form a waste refrigerant flow path through which waste refrigerant flows; A waste refrigerant jet nozzle connected to the front end of the waste refrigerant supply pipe in such a manner as to communicate with the waste refrigerant flow path and spraying the waste refrigerant and having an inclined surface guiding the waste refrigerant to be sprayed toward the center axis of the waste refrigerant supply pipe; And an air supply unit interposed between the fuel injection pipe and the waste refrigerant supply pipe to supply combustion air from the outside and inject the air to join the injected fuel; And an ignition device for igniting the spark by using the injected fuel and air.

Here, the burner for the waste refrigerant destroying apparatus may include a plurality of sealing pieces for partially sealing the injection port through which the waste refrigerant is discharged.

Further, the plurality of sealing pieces may seal about 50% of the ejection opening volume.

In addition, the waste refrigerant spraying nozzle may spray the waste refrigerant so as to form a cone shape so that the waste refrigerant to be collected collects at one point. Here, it is preferable that the point where the waste refrigerant is collected is spaced 10 to 15 mm forward from the point where the flame is ignited.

It is also preferable that the inclined surface is inclined at an angle of 45 DEG with respect to the waste refrigerant supply pipe.

The air supply unit may include a disk-shaped disk having a flow path through which air flows and having the fuel injection nozzle disposed at the center thereof, one end communicating with an external air pump, and the other end communicating with the flow path And a plurality of air supply nozzles formed in the disk and branched from the flow path so that the outlet end faces forward.

In addition, the burner for the waste refrigerant destroying apparatus may further include a water supply unit for spraying water vapor to the ignited flame.

The burner for the waste refrigerant destroying apparatus may further include a wet cleaning unit for recovering the reaction gas generated from the decomposed waste refrigerant to supply calcium hydroxide (Ca (OH) 2 ).

According to the burner for a waste refrigerant destruction apparatus according to the present invention, the following effects can be obtained.

First, an inclined surface is formed at the end of the waste refrigerant jetting nozzle, and the waste heat of the waste refrigerant is concentrated in the deep portion of the spark, which is the maximum temperature point of the flame, so that the thermal decomposition efficiency of the waste refrigerant can be increased.

Secondly, the injection port of the waste coolant injection nozzle is partially closed so that the waste refrigerant does not completely block the path of the flame, so that the flame can be stably ignited and the waste refrigerant can easily reach the deep part of the flame.

Thirdly, the hydrofluoric acid (HF) generated in the decomposition process of the waste refrigerant is decomposed and discharged into fluorite (CaF 2 ), thereby preventing the inner wall of the combustion chamber and other components from being corroded by the hydrofluoric acid.

1 is a side sectional view of a burner for a waste refrigerant destruction apparatus according to the present invention,
FIG. 2 is a side sectional view enlargedly showing the structure of the fuel supply pipe, the waste refrigerant supply pipe, the air supply portion, and the waste coolant supply nozzle shown in FIG. 1,
Fig. 3 is a front view showing a state of cutting along the line AA in Fig. 2; Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, at the time of the present application, It should be understood that variations can be made.

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

FIG. 1 is a side sectional view of a burner for a waste refrigerant destroying apparatus according to the present invention. FIG. 2 is an enlarged view of the structure of the fuel injection pipe, the waste refrigerant supply pipe, And FIG. 3 is a front view showing a state of being cut along the line AA in FIG.

Referring to FIG. 1, a burner for a waste refrigerant destruction apparatus according to the present invention is a device for thermally decomposing waste refrigerant by spraying on an ignited flame. The burner includes a fuel injection pipe 100, a waste refrigerant supply pipe 200, a waste refrigerant injection nozzle 300, an air supply unit 400, and an ignition device 500.

The waste refrigerant may be CFCs, HCFCs, and HFCs, but is not limited thereto.

The fuel injection pipe 100 is provided with a fuel injection nozzle 100 at the front end for supplying fuel from outside. At this time, the rear end of the fuel injection pipe (100) can communicate with the external fuel pump (10). At this time, LPG may be exemplified as the fuel, but is not limited thereto. 1, a combustion chamber 30 may be provided in front of the fuel injection pipe 100 for partitioning a predetermined space in front of the fuel injection pipe 100 from the outside.

The waste refrigerant supply pipe 200 supplies waste refrigerant from the outside. At this time, CFCs, HCFCs, and HFCs are exemplified as the waste refrigerant, but the present invention is not limited thereto. Referring to FIG. 2, the inner pipe 210 and the outer pipe 220 of the waste refrigerant supply pipe 200 are superposed on each other. First, the inner pipe 210 is formed into a hollow tube shape surrounding the fuel injection pipe 100. The outer tube 220 surrounds the inner tube 210 and forms a waste refrigerant flow path 201 through which the waste refrigerant flows. At this time, it is preferable that one side of the waste refrigerant flow path 201 communicates with an external waste refrigerant supply pump (not shown).

The waste refrigerant jetting nozzle 300 is provided at a front end of the waste refrigerant supply pipe 200. The waste refrigerant jetting nozzle 300 communicates with the waste refrigerant flow path 201 and discharges the waste refrigerant flowing in the waste heat transfer path 201 toward the front. At this time, the waste refrigerant jet nozzle 300 has an inclined surface 301 at an end thereof. The waste refrigerant injected from the waste refrigerant jet nozzle 300 is injected toward the center axis of the waste refrigerant supply pipe 200 by the inclined surface 301. At this time, the waste refrigerant injected from the waste refrigerant jet nozzle 300 draws a cone shape to be collected at one point. Further, it is preferable that the inclined surface 301 is inclined at an angle of 45 ° with respect to the waste refrigerant supply pipe 200. In addition, it is preferable that a point where the waste refrigerant is collected is spaced 10 to 15 mm forward from the point where the flame is ignited. At this time, the point where the waste refrigerant to be sprayed is gathered is the deepest point of the flame, which is the highest temperature among the flames. By spraying the waste refrigerant toward a point having the highest temperature of the flame, the efficiency of pyrolysis of the waste refrigerant can be increased while reducing the amount of fuel used.

Referring to FIG. 3, the waste refrigerant jetting nozzle 300 may include a plurality of closing pieces 310 for partially sealing the jetting ports 302 through which the waste refrigerant is discharged. It is preferable that the plurality of sealing pieces 310 seal about 50% of the injection port volume. The waste coolant injected through the waste coolant injection nozzle 300, which is partially enclosed by the injection port 302, is injected into a conical shape partially formed with gaps. That is, by preventing the waste refrigerant from being completely blocked from the path of the flame, the flame can be stably ignited, and the waste refrigerant can easily reach the deep portion of the flame.

The air supply unit 400 receives combustion air from the outside and injects the air to join the injected fuel. At this time, the air supply unit 400 is interposed between the fuel injection pipe 100 and the waste refrigerant supply pipe 200. The air supply unit 400 may include a disk 410, an air supply pipe 420, and an air supply nozzle 430 as shown in FIG. First, the disk 410 is formed in the shape of a disk having a center hole so that the fuel injection nozzle 100 is disposed at the center. And a flow path 411 through which air flows is formed. The air supply pipe 420 has one end communicating with the external air pump 20 and the other end communicating with the flow path 411. The air supply nozzle 430 is formed inside the circular plate 410 and is branched from the flow path 411 so that the outlet end faces forward. At this time, it is preferable that the air supply nozzle 430 is formed at least one.

The igniter 500 ignites the flame using the fuel injected from the fuel injecting tube 100 and the air injected from the air supplier 400. At this time, the flame is sprayed toward the inner space of the combustion chamber 30, and the flame is in contact with the waste refrigerant sprayed from the waste refrigerant supply pipe 200 in the combustion chamber 30. [ At this time, the waste refrigerant is thermally decomposed in the combustion chamber 30, and the reactants generated in the decomposition process are preferably sealed in the combustion chamber 30.

The burner for a waste refrigerant destroying apparatus according to the present invention may further include a water vapor supply unit 600 for more effectively decomposing the waste refrigerant. The water vapor supply unit 600 supplies water vapor to the flame while the waste refrigerant contacts the flame. At this time, the water vapor supply unit 600 may be installed on the inner wall of the combustion chamber 30. The water vapor supply unit 600 may be installed on the inner wall of the combustion chamber so as to be sprayed toward the waste refrigerant in all directions. At this time, the waste refrigerant is decomposed into hydrofluoric acid (HF) in contact with water vapor generated while burning propane of the waste refrigerant and water vapor supplied from the steam supply unit 600. Here, the waste refrigerant is decomposed by the following reaction formula in combination with steam.

[Reaction Scheme 1]

CH 2 FCF 3 (waste refrigerant) + 4H 2 O → 4HF + 3H 2 + 2CO 2

The burner for a waste refrigerant destroying apparatus of the present invention may further include a wet cleaning unit 700 for decomposing hydrofluoric acid (HF) generated in the decomposition process of the waste refrigerant. The wet scrubber 700 recovers the reaction gas generated from the decomposed waste refrigerant and supplies the hydroxide calcium hydroxide (Ca (OH) 2 ) to the reaction gas. The reaction hydrofluoric acid (HF), one of the gas is combined with the calcium hydroxide (Ca (OH) 2) and discharging the calcium fluoride (CaF 2). Here, the hydrofluoric acid (HF) and the calcium hydroxide (Ca (OH) 2 ) react by the following reaction formula.

[Reaction Scheme 2]

4HF + Ca (OH) 2 → CaF 2 + H 2 O

Referring to FIG. 1, the wet cleaning part 700 may be installed on one side of the reaction chamber 30 so as to communicate with the inside of the reaction chamber 30.

The burner for a waste refrigerant destroying apparatus according to the present invention decomposes hydrofluoric acid (HF) generated in the decomposition process of refrigerant into fluorite (CaF2), so that the inner wall of the combustion chamber 30 and other facilities are corroded by the hydrofluoric acid Can be prevented.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: fuel pump 20: air pump
30: Combustion chamber 100: Fuel injection pipe
[0001] The present invention relates to a fuel injection nozzle,
220: Appearance 300: Waste refrigerant spray nozzle
301: inclined surface 302:
310: Closure piece 400: Air supply part
410: original plate 411: flow path
420: air supply pipe 430: air supply nozzle
500: Ignition device 600: Water vapor supply part
700: wet cleaning agent

Claims (9)

A burner for a waste refrigerant destroying apparatus for waste disposal to thermally decompose a waste refrigerant,
A fuel injection pipe provided with a fuel injection nozzle at a front end thereof and injecting fuel from the outside and injecting the fuel;
A waste refrigerant supply pipe constituted by a hollow tubular inner tube surrounding the periphery of the fuel injection pipe and a hollow tubular outer tube surrounding and enclosing the inner pipe to form a waste refrigerant flow path through which waste refrigerant flows;
A sloped surface is formed at a front end of the waste refrigerant supply pipe so as to communicate with the waste refrigerant flow path to spray the waste refrigerant and guide the waste refrigerant to be sprayed toward the center axis of the waste refrigerant supply pipe at an end portion, And a plurality of sealing pieces arranged to partly seal the injection port through which the waste refrigerant is discharged;
An air supply unit interposed between the fuel injection pipe and the waste refrigerant supply pipe to supply combustion air from the outside and inject the air to join the injected fuel; And
And an ignition device for igniting a flame by using the injected fuel and air.
delete The method according to claim 1,
Wherein the plurality of sealing pieces seal 50% of the volume of the injection port. The method according to claim 1,
Wherein the waste refrigerant jetting nozzle injects the waste refrigerant so as to form a cone shape so that the waste refrigerant to be injected is collected at one point. The method of claim 4,
Wherein a point where the waste refrigerant to be sprayed is collected is spaced 10 to 15 mm forward from a point where the flame is ignited. The method of claim 4,
And the inclined surface is inclined at an angle of 45 DEG with respect to the waste refrigerant supply pipe. The method according to claim 1,
The air-
A disc-shaped original plate in which a flow path through which air flows is formed and the fuel injection nozzle is disposed in the center,
An air supply pipe having one end communicating with the outside air pump and the other end communicating with the flow path,
And a plurality of air supply nozzles formed in the disk and branched from the flow path so that the outlet end faces forward. The method according to claim 1,
Further comprising a water supply portion for spraying water vapor to the ignited flame. The method according to claim 1,
And a wet cleaning section for recovering the reaction gas generated from the decomposed waste refrigerant to supply calcium hydroxide (Ca (OH) 2 ).
KR1020150190779A 2015-12-31 2015-12-31 Burner for apparatus of destruction for waste refrigerant KR101763494B1 (en)

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KR1020150190779A KR101763494B1 (en) 2015-12-31 2015-12-31 Burner for apparatus of destruction for waste refrigerant

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KR1020150190779A KR101763494B1 (en) 2015-12-31 2015-12-31 Burner for apparatus of destruction for waste refrigerant

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KR101763494B1 true KR101763494B1 (en) 2017-08-01

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004053073A (en) * 2002-07-17 2004-02-19 Sumitomo Osaka Cement Co Ltd Detoxicating method of chlorofluorocarbon by kiln for manufacturing cement
KR200421616Y1 (en) * 2006-04-20 2006-07-14 흥국공업 주식회사 LOW NOx GAS BURNER
KR100631289B1 (en) * 2005-01-06 2006-10-12 주식회사 글로벌스탠다드테크놀로지 Apparatus for gas burner nozzle in waste gas abatement equipment of semiconductor
KR101193737B1 (en) * 2010-06-28 2012-10-22 현대제철 주식회사 Apparatus of gas combustion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004053073A (en) * 2002-07-17 2004-02-19 Sumitomo Osaka Cement Co Ltd Detoxicating method of chlorofluorocarbon by kiln for manufacturing cement
KR100631289B1 (en) * 2005-01-06 2006-10-12 주식회사 글로벌스탠다드테크놀로지 Apparatus for gas burner nozzle in waste gas abatement equipment of semiconductor
KR200421616Y1 (en) * 2006-04-20 2006-07-14 흥국공업 주식회사 LOW NOx GAS BURNER
KR101193737B1 (en) * 2010-06-28 2012-10-22 현대제철 주식회사 Apparatus of gas combustion

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