KR101991390B1 - Fuel feeding apparatus - Google Patents

Fuel feeding apparatus Download PDF

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Publication number
KR101991390B1
KR101991390B1 KR1020170079293A KR20170079293A KR101991390B1 KR 101991390 B1 KR101991390 B1 KR 101991390B1 KR 1020170079293 A KR1020170079293 A KR 1020170079293A KR 20170079293 A KR20170079293 A KR 20170079293A KR 101991390 B1 KR101991390 B1 KR 101991390B1
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KR
South Korea
Prior art keywords
fuel
piston member
pipe member
piston
combustor
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KR1020170079293A
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Korean (ko)
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KR20190000218A (en
Inventor
나상권
김동현
이상명
김양원
최욱선
Original Assignee
주식회사 포스코
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Priority to KR1020170079293A priority Critical patent/KR101991390B1/en
Priority to PCT/KR2018/007029 priority patent/WO2018236162A1/en
Publication of KR20190000218A publication Critical patent/KR20190000218A/en
Application granted granted Critical
Publication of KR101991390B1 publication Critical patent/KR101991390B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/10—Under-feed arrangements
    • F23K3/12—Under-feed arrangements feeding by piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2203/00—Feeding arrangements
    • F23K2203/20—Feeding/conveying devices
    • F23K2203/203—Feeding/conveying devices using pistons or rams

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

A fuel supply apparatus according to an embodiment of the present invention includes a curved pipe member having one end connected to a combustor and having an inner diameter increasing toward the combustor and a straight pipe member extending from the other end of the curved pipe member A fuel supply pipe member provided with the fuel supply pipe member; And a fuel transfer unit for transferring the fuel to the combustor side by providing a thrust to the fuel supplied into the fuel supply pipe through a fuel supply port formed on one side of the straight pipe member.

Description

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

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fuel supply apparatus, and more particularly, to a fuel supply apparatus capable of effectively supplying solid fuel to a combustor.

Conventionally, a landfill method for burying wastes such as industrial wastes and municipal wastes has been mainly used. However, such landfill methods involve environmental pollution. In recent years, methods for incinerating these wastes have been actively conducted . The collected wastes are crushed and crushed, dried and supplied to a combustor, which can be burned and incinerated in a combustor.

Korean Patent Publication No. 10-2007-0003734 (published on May 1, 2007)

An object of the present invention is to provide a fuel supply apparatus capable of effectively supplying a solid fuel to a combustor.

Other objects of the present invention will become more apparent from the following detailed description and drawings.

A fuel supply apparatus according to an embodiment of the present invention includes a curved pipe member having one end connected to a combustor and having an inner diameter increasing toward the combustor and a straight pipe member extending from the other end of the curved pipe member A fuel supply pipe member provided with the fuel supply pipe member; And a fuel moving unit that moves the fuel toward the combustor by providing a thrust force to the fuel supplied to the inside of the fuel supply pipe member through a fuel supply port formed on one side of the straight pipe member.

Wherein the fuel moving unit includes a first fuel moving unit disposed on one side of the straight pipe member and the first fuel moving unit is disposed inside the straight pipe member so as to move forward and backward along the longitudinal direction of the straight pipe member, And a first piston member provided so as to be capable of moving backward, wherein the fuel can move forward toward the combustor when the first piston member is moved forward.

Wherein the first piston member is provided with a first front piston member on the front side and a first rear piston member on the rear side with respect to the moving direction of the fuel and the first front piston member has a diameter of the first rear piston member May be provided to have a smaller diameter.

Wherein the first piston member has a first forward position in which the front end face of the first front piston member is positioned in front of the fuel feed opening and a front end face of the first front piston member is located in the vicinity of the fuel feed opening And the first backward position located rearward.

The first piston member may further include a scraper member disposed at a front end portion of the first front piston member, wherein a rear end surface of the scraper member has a larger area than a front end surface of the first front piston member have.

The scraper member may be provided in a shape such that the cross sectional area decreases along the moving direction of the fuel.

Wherein the fuel moving unit includes a second fuel moving unit capable of providing an impelling force for the movement of the fuel in the curved pipe member, and the second fuel moving unit is connected to the inside of the curved pipe member A piston housing in which a communicating piston space is formed; And a second piston member disposed in the piston space and capable of switching between a second forward position in which the fuel advances toward the moving direction of the fuel and a second backward position in which it is moved backward in a direction opposite to the moving direction of the fuel, . ≪ / RTI >

The second piston member may be provided to be switched to move along a center line of one end of the curved pipe member connected to the combustor.

The increase in the inner diameter of the curved pipe member may increase at a constant increasing rate with respect to the average moving distance of the fuel moving through the curved pipe member.

The increase ratio may be 0.3 or less.

According to an aspect of the present invention, there is provided a fuel supply apparatus including a combustor body having a cylindrical combustion chamber formed therein; A fuel supply pipe member including a curved pipe member having an upper end connected to a lower end of the combustor main body and a straight pipe member extending horizontally from the other end of the curved pipe member; And a fuel moving unit capable of providing a driving force to move the fuel supplied to the inside of the fuel supply pipe through the fuel supply port formed on one side of the straight pipe member to the combustor side, The inner diameter of which is increased along the moving direction.

Wherein the fuel moving unit includes: a first piston member disposed inside the linear pipe member and movable forward and backward along the longitudinal direction of the linear pipe member; And a second piston member disposed on one side of the curved pipe member and movable up and down along an extension of the center line of the curved pipe member.

The fuel supply device according to an embodiment of the present invention includes a curved pipe member having an enlarged pipe structure, and can effectively reduce the movement resistance due to the frictional force generated between the curved pipe member and the fuel.

In addition, the fuel supply device according to the embodiment of the present invention can effectively supply the fuel to the fuel through the first fuel transfer unit and the second fuel transfer unit, thereby effectively securing the efficiency of fuel supply.

1 is a schematic view of a fuel supply apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic partial cross-sectional view of the fuel supply device of Fig. 1;
3 is a view schematically showing a plate member of an isosceles trapezoid for making a curved pipe member of the present invention.
Fig. 4 is a schematic view of a curved pipe member manufactured using the plate member of the isosceles trapezoid in Fig. 3. Fig.
5 and 6 are partial cross-sectional views schematically showing driving of the first fuel moving unit of the present invention.
7 is a partial cross-sectional view schematically showing driving of the scraper member of the present invention.
8 and 9 are partial cross-sectional views schematically showing driving of the second fuel moving unit of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a fuel supply apparatus, and embodiments of the present invention will be described below with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The embodiments are provided to explain the present invention to a person having ordinary skill in the art to which the present invention belongs. Accordingly, the shape of each element shown in the figures may be exaggerated to emphasize a clearer description. In addition, the connection referred to below should be construed to include not only the case where two components are directly connected but also the case where they are indirectly connected through another medium.

FIG. 1 is a schematic view of a fuel supply apparatus according to an embodiment of the present invention, and FIG. 2 is a schematic sectional view of a fuel supply apparatus of FIG. 1.

1 and 2, a fuel supply device 1 according to an embodiment of the present invention includes a combustor 100 having a combustion chamber 102 therein, and a fuel supply device 100 disposed to extend from one side of the combustor 100 The fuel supply piping member 200 may be provided with a plurality of fuel supply pipes. The combustor 100 of the present invention is preferably an annular combustor having a cylindrical combustion chamber 102 therein and injecting air in a tangential direction with respect to the outer wall of the combustion chamber 102. However, And may include any type of combustor capable of combusting fuel F. The fuel (F) of the present invention is preferably a solid fuel obtained by drying industrial wastes or municipal wastes. However, the fuel (F) of the present invention is not necessarily limited thereto, Can be interpreted as being included in the fuel (F) of the invention.

The fuel supply pipe member 200 includes a curved pipe member 210 having one end connected to the combustor 100 and having a curved shape and a straight pipe member 210 connected to the other end of the curved pipe member 210, 220). A curved curved space 212 may be formed through the inside of the curved piping member 210 and a straight linear space 222 may be formed through the inside of the straight piping member 220. An opening 104 communicating with the combustion chamber 102 may be formed at one side of the combustor 100 and the linear space 222 and the curved space 212 may communicate with each other to communicate with each other, It is possible to provide a movement route. A fuel supply port 234 may be formed at one side of the straight pipe member 220 and the fuel F may be supplied into the straight space 222 through the fuel supply port 234. [ A transfer pipe member 230 extending from a fuel reservoir (not shown) or the like and providing a path for moving the fuel F may be connected to one side of the straight pipe member 220, (232) may be arranged to communicate with the fuel supply port (234). 1 and 2, the transfer space 232 may be provided with a transfer piston or a transfer screw, whereby the fuel F in the transfer space 232 is supplied through the fuel supply port 234 And can move to the linear space 222.

1 and 2 show that one end of the curved pipe member 210 is connected to the lower end of the combustor 100, the curved pipe member 210 of the present invention must have one end at the lower end of the combustor 100 But the present invention is not limited thereto. However, in the case of the annular combustor, it is more preferable that the curved pipe member 210 is disposed at the lower end of the combustor 100 in terms of the combustion efficiency of the fuel F. Hereinafter, one end of the curved pipe member 210 is connected to the lower end of the combustor 100, and the case where the straight pipe member 220 is connected to the other end of the curved pipe member 210 and disposed side by side The arrangement of the curved pipe member 210 and the straight pipe member 220 is not necessarily limited thereto.

1 and 2, the curved pipe member 210 of the present invention can be provided in a shape in which the inner diameter decreases along the moving direction of the fuel F. [ That is, the curved pipe member 210 may be provided such that the inner diameter gradually decreases from one end connected to the combustor 100 toward the other end connected to the straight pipe member 220 (d n > d n - 1 >...> d 2 > d 1 ). The curved pipe member 210 is provided with a tubular pipe whose inner diameter gradually expands along the direction of movement of the fuel F so that the fuel F moving through the curved space 212 flows through the curved pipe member It is possible to mitigate the restriction of the movement of the fuel F due to the frictional force generated between the inner walls of the fuel rods 210. [ 1 and 2 illustrate that the inner diameter of the curved pipe member 210 increases along the moving direction of the fuel F but the straight pipe member 212 also has an inner diameter increased toward the moving direction of the fuel F Or the like.

FIG. 3 is a schematic view of an isosceles trapezoidal plate for making a curved pipe member of the present invention, and FIG. 4 is a view schematically showing a curved pipe member manufactured by using an isosceles trapezoidal plate of FIG. 3 .

As shown in FIG. 3, the expanding curved pipe member 210 of the present invention can be manufactured using an isotropic trapezoid plate member 214. That is, the plate member 213 may be provided in a shape of an isosceles trapezoid, which is provided on the upper side having a length of D n , the base having a length of D 1 , and both side hypotenuses connecting the upper and lower sides. The isotropic trapezoidal plate member 214 may be generally cut along a direction parallel to the base and upper sides and divided into a plurality of partitioning plates 214a to 214j. Although FIG. 3 shows ten divided plate members 214a to 214j, the number of divided pieces of the plate member 214 having an isosceles trapezoid may vary depending on the shape of the curved pipe member 210 and the facility environment.

3, the partitioning plates 214a to 214j may be formed by cutting an isotropic trapezoid plate 214 such that convex portions and concave portions are formed at intersections. That is, the first partition plate 214a may be divided into a round shape so that both side end sides have the highest height h a , and the second partition plate 214b on the upper side of the first partition plate 214a, Can be divided into a round shape so that the center side has the highest height h b . That is, a portion having the highest height of the intersection may be formed on the both end sides and the center side from the first partition plate 214a to the tenth partition plate 214j. The highest height h a to h j of each of the partitioning plates 214a to 214j may be variously provided depending on the shape of the curved pipe member 210 and the facility environment.

As shown in FIG. 4, each of the divided partition plates 214a to 214j is processed into a tubular shape to form split pipes 210a to 210j, and each of the split pipes 210a to 210j is connected to each other A curved pipe member 210 provided in a curved shape can be provided. That is, the portions (h a to h j ) provided at the highest height in each of the partitioning plates 214a to 214j on the basis of FIG. 4 are connected to each other on the left side of the curved pipe member 210, The split piping 210a to 210j of the branch piping 210 can constitute a curved piping member 210 provided in a curved shape.

As shown in FIG. 3, it is preferable that the inclined angle &thetas; between the upper side and the lower side of the isosceles trapezium plate 214 is set to be not less than 75 degrees and less than 90 degrees. In order to provide the curved pipe member 210 in an enlarged form, the inclined angle &thetas; should be less than 90 DEG, and when the inclined angle &thetas; The efficiency of supplying the fuel F becomes low. That is, when the inclination angle? Is less than 75 degrees, there may arise a problem that the fuel F is not uniformly supplied into the combustion chamber 102, and the curvilinear tubular member 210 and the fuel (F) are not uniformly formed, which may cause a problem that the fuel is not smoothly conveyed. Therefore, it is preferable that the inclined angle &thetas; between the upper side and the lower side of the isosceles trapezoidal plate member 214 for making the curved pipe member 210 is set to an angle of 75 DEG or more and less than 90 DEG.

The inclined angle &thetas; between the upper side and the lower side of the isosceles trapezoidal plate member 214 for manufacturing the curved pipe member 210 is set to be not less than 75 degrees and less than 90 degrees, The inner diameter of the member 210 can be increased at a certain rate along the moving direction of the fuel F. [ That is, the difference (? D = d n -d 1 ) between the output inner diameter d n and the input inner diameter d 1 of the curved pipe member 210 protrudes from the following equation 1, The difference (d d = d n -d 1 ) between the output inner diameter d n and the input inner diameter d 1 of the fuel injector 210 can be 0.3 times or less than the average moving distance 1 of the fuel F.

<Formula 1>

(? * d n ) - (? * d 1 ) = D n - D 1 = 2 *

∴ Δd = d n - d 1 = 2 * {l * tan (90 ° -?)} /?

That is, the difference between the output inner diameter d n of the curved pipe member 210 and the input inner diameter d 1 (Δd = d n -d 1 ) is constant according to the average moving distance 1 of the fuel F By limiting the increase ratio to 0.3 or less, the efficiency of the movement of the fuel F moving along the curved pipe member 210 can be effectively secured.

1 and 2, the fuel supply apparatus 1 of the present invention includes a fuel transfer unit 300, which is capable of providing transfer propulsion to the fuel F moving through the fuel supply pipe member 200, 400). The fuel moving units 300 and 400 include a first fuel moving unit 300 capable of pressing the fuel F inside the straight pipe member 220 and capable of providing a moving propulsion force and a fuel F And a second fuel moving unit 400 capable of supplying a driving force.

The first fuel moving unit 300 includes a first piston member 320 and a second piston member 320. The first piston member 320 and the first piston member 320 are reciprocally movable within the straight pipe member 220, 1 &lt; / RTI &gt; drive member &lt; RTI ID = 0.0 &gt; 310. When the first piston member 320 moves forward toward the combustor 100, the fuel F in the fuel supply pipe member 200 is pressed to one end of the first piston member 320 and moved toward the combustor 100 side And the fuel F may be additionally supplied into the straight space 222 through the fuel supply port 234 when the first piston member 320 moves forward in the direction opposite to the combustor 100.

The first piston member 320 may be provided with the first front piston member 324 on the front side and the first rear piston member 322 on the rear side based on the moving direction of the fuel F. [ The first rear piston member 322 may be provided to have an outer diameter corresponding to the inner diameter of the straight pipe member 220 and the first front piston member 324 may have a diameter that is greater than the diameter of the first rear piston member 322 And may be provided so as to have a small diameter. 5 and 6, the first piston member 320 has a first reverse position A in which the front end face of the first front piston member 324 is disposed on the rear end side of the fuel supply port 234, And the first battery position (B) where the front end surface of the first front piston member (324) is disposed on the front end side of the fuel supply port (234). Therefore, when the first piston member 320 is moved to the first backward position A, the fuel F can be introduced into the straight space 222 through the opened fuel supply port 234. [ When the first piston member 320 moves to the first advancing position B, the fuel supply port 234 is closed and is pushed to one end of the first piston member 320, (100).

The first front piston member 324 is provided to have a smaller diameter than the diameter of the first rear piston member 322 so that the length of the first rear piston member 322 from the front face of the first rear piston member 322 The movement efficiency of the fuel F can be effectively increased as compared with a case where the first piston member 320 is provided solely by the first rear piston member 322. [ In other words, the movement distance of the fuel F, which moves with the first piston member 320 when the first piston member 320 reciprocates once, is effectively reduced compared with the case where the first piston member 320 is provided solely by the first rear piston member 322 . 5 to 6 show the first front piston member 324 fixedly disposed on the front end surface of the first rear piston member 322, the first front piston member 324 is also connected to the first rear piston member 322 322 so that the first front piston member 324 further moves forward during the forward movement of the first rear piston member 322 can be included in the scope of the present invention.

A scraper member 326 may be disposed at the front end of the first front piston member 324. [ It is preferable that the rear end surface of the scraper member 326 connected to the front end surface of the first front piston member 324 has a larger area than the front end surface of the first front piston member 324. The fuel F is compressed between the first front piston member 324 and the inner wall of the straight pipe member 330 when the first piston member 320 is shifted to the first advancing position B, The space in which the first front piston member 324 is located is filled with the fuel F even when the first piston member 320 is switched to the first backward position A and then is again shifted to the first forward position B The problem can not be solved. The rear end face of the scraper member 326 is provided so as to have a larger area than the front end face of the first front piston member 324 as shown in Figs. 7 (a) to 7 (c) (F) that has been compressed on the inner wall side of the straight pipe member 220 at the time of shifting to the first backward position (A). 7 (c), when the first piston member 320 is changed over to the first backward position A, the rear end surface of the scraper member 326 moves to the upper side of the first front piston member 324 The fuel F on the upper side of the first front piston member 324 can be collapsed to the lower side by scrapping the fuel F squeezed on the side of the first front piston member 324 and the movement efficiency of the fuel F can be effectively increased. In addition, the scraper member 326 may be provided in a wedge shape in which the cross-sectional area decreases from the front end portion toward the rear end portion, so that the external force applied to the first piston member 320 when the first piston member 320 is moved forward The scraping efficiency can be effectively improved when the first piston member 320 moves backward.

The second fuel moving unit 400 includes a piston housing 430 disposed at one side of the curved pipe member 210, a second piston member 420 disposed inside the piston housing 430 and adapted to be switchably moved, And a second driving member 410 having one end connected to the second piston member 420 and capable of providing switching power. A piston space 432 having an open end may be formed in the piston housing 430 and the piston space 432 may be disposed to communicate with the curved space 212. The piston space 432 is preferably arranged to extend along the center line x-x 'of one end of the curved tubular member 210 so that the second piston member 420 disposed in the piston space 432 is connected to the curved tubular member Can be switched and moved on the center line (x-x ') of one end of the member 210. When one end of the curved piping member 210 is connected to the lower end of the combustor 100, the piston housing 430 may be disposed such that the piston space 432 is disposed along the vertical direction, (420) can move up and down along the vertical direction.

The second piston member 420 is moved in the second forward position D that has moved forward along the moving direction of the fuel F and the second backward position C that has moved backward along the direction opposite to the moving direction of the fuel F The fuel F in the curved piping member 210 can be pressed to one end of the second piston member 420 and moved to the combustion chamber 102 when the second piston member 420 is moved forward have. The front end surface of the second piston member 420 which has been shifted to the second backward position C can be disposed on the boundary line between the piston space 432 and the curved space 212, The front end surface of the second piston member 420 which has been shifted can be disposed in the curved space 212. [ The second piston member 420 also includes a second rear piston member 422 and a second front piston member 424 disposed at the front end of the second rear piston member 422, And a scraper member 426 disposed at the front end of the second front piston member 424. [

8 and 9, after the fuel F is introduced into the curved space 212 by a predetermined amount or more by the first piston member 322, the second piston member 420 is moved to the second reverse position C to the second advancing position D and the fuel F in the curved space 212 can be extruded into the combustion chamber 102. [ It is preferable that the first piston member 320 is located at the first advancing position B when the second piston member 420 is lifted and lowered in consideration of the effect of extruding the fuel F. [ That is, after the first piston member 320 is switched to the first advancing position B, the second piston member 420 is reciprocated between the second reverse position C and the second advancing position D, And the first piston member 320 is shifted to the first backward position A after the second piston member 420 is returned to the second backward position C. [ However, this is merely an example of the switching operation of the first piston member 320 and the second piston member 420, and the first piston member 320 and the second piston member 420 are alternately moved forward and backward The case of moving can also be included in the scope of the present invention.

1 to 9, the fuel supply device 1 according to the embodiment of the present invention may be electrically or physically connected to the first fuel moving unit 300 and the second fuel moving unit 400 And may further include a control unit for controlling the driving of the first fuel moving unit 300 and the second fuel moving unit 400. In addition, the fuel supply apparatus 1 according to the embodiment of the present invention may further include a sensor member capable of measuring the state in the combustion chamber 102 and transmitting the state information, The driving of the first fuel moving unit 300 and the driving of the second fuel moving unit 400 can be appropriately controlled.

As described above, the fuel supply apparatus 1 according to the embodiment of the present invention includes the tubular tubular pipe member 210, and the fuel supply apparatus 1 according to the embodiment of the present invention includes the tubular tubular pipe member 210, The first fuel moving unit 300 and the second fuel moving unit 400 can effectively provide a driving force to the fuel F so that the efficiency of supplying the fuel F can be effectively reduced .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, Therefore, the technical idea and scope of the claims set forth below are not limited to the embodiments.

1: fuel supply device 100: combustor
200: fuel supply pipe member 210: curved pipe member
220: straight pipe member 300: first fuel moving unit
320: first piston member 322: first rear piston member
324: first front piston member 326: scraper member
400: second fuel moving unit 420: second piston member
430: piston housing

Claims (12)

A fuel supply piping member having a curved piping member connected to the combustor and having an inner diameter increasing toward the combustor and a straight piping member extending from the other end of the curved piping member; And
And a fuel supply port formed in one side of the straight pipe member for supplying fuel to the inside of the fuel supply pipe member to move the fuel toward the combustor side, And a fuel moving unit including a fuel moving unit,
Wherein the first fuel moving unit includes a first piston member disposed inside the linear pipe member and provided so as to be movable forward and backward along the longitudinal direction of the linear pipe member,
Wherein the first piston member includes a first front piston member on a front side and a first rear piston member on a rear side based on a moving direction of the fuel. The method according to claim 1,
And the fuel moves forward while advancing the first piston member toward the combustor. 3. The method of claim 2,
Wherein the first front piston member is provided to have a smaller diameter than the diameter of the first rear piston member. The method of claim 3,
Wherein the first piston member has a first forward position in which the front end face of the first front piston member is positioned in front of the fuel feed opening and a front end face of the first front piston member is located in the vicinity of the fuel feed opening And a first backward position located rearward. The method of claim 3,
Wherein the first piston member further comprises a scraper member disposed at a front end of the first front piston member,
And the rear end face of the scraper member is provided so as to have a larger area than the front end face of the first front piston member. 6. The method of claim 5,
Wherein the scraper member is provided in a shape such that the cross-sectional area decreases along the moving direction of the fuel. The method according to claim 1,
Wherein the fuel moving unit includes a second fuel moving unit capable of providing a driving force to the movement of the fuel in the curved pipe member,
Wherein the second fuel moving unit includes:
A piston housing in which a piston space communicating with the inside of the curved pipe member is opened through an open end; And
A second piston member which is disposed in the piston space and is switchable between a second advancing position that is advanced toward the moving direction of the fuel and a second reverse position that is moved backward in a direction opposite to the moving direction of the fuel, Comprising a fuel supply device. 8. The method of claim 7,
And the second piston member is provided so as to be capable of switching along a center line at one end side of the curved pipe member connected to the combustor. The method according to claim 1,
Wherein an increase in the inside diameter of the curved pipe member increases at a constant increasing rate with respect to an average moving distance of the fuel moving through the curved pipe member. 10. The method of claim 9,
Wherein the increasing ratio is not more than 0.3. A combustor main body having a cylindrical combustion chamber formed therein;
A fuel supply pipe member including a curved pipe member having an upper end connected to a lower end of the combustor main body and a straight pipe member extending horizontally from the other end of the curved pipe member; And
Wherein a fuel supply port provided in one side of the straight pipe member is capable of providing a propelling force to move the fuel supplied to the inside of the fuel supply pipe toward the combustor side and is disposed inside the straight pipe member, And a first piston member that is movable forward and backward along the direction of the first piston member,
Wherein the curved pipe member is provided in such a shape that the inner diameter increases along the moving direction of the fuel,
Wherein the first piston member includes a first front piston member on a front side and a first rear piston member on a rear side based on a moving direction of the fuel. 12. The method of claim 11,
Wherein the fuel moving unit includes:
And a second piston member which is disposed on one side of the curved pipe member and is movable up and down along an extension of a center line of an upper end side of the curved pipe member.
KR1020170079293A 2017-06-22 2017-06-22 Fuel feeding apparatus KR101991390B1 (en)

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Publication number Priority date Publication date Assignee Title
JP2002221307A (en) * 2001-01-22 2002-08-09 Maejima Fumio Object-to-be-incinerated transferring type incinerator
KR101228421B1 (en) * 2012-06-26 2013-01-31 (주)유성 A fuel feeding device of combustion chamber and combustion chamber equipment having the same

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