SA515360002B1 - Burner tip, combstion burner, and boiler - Google Patents

Abstract

A burner tip, a combustion burner, and a boiler are provided with a mixing chamber (56) that is provided inside, a plurality of fluid mixture injection holes (52, 53, 54) of which base end portions communicate with the mixing chamber (56) and tip portions are opened and which are disposed at a predetermined interval in a circumferential direction, a plurality of first fuel supply passages (61) that are provided along a longitudinal direction and supply fuel to the mixing chamber (56), a plurality of first steam supply passages (62) that are provided along the longitudinal direction and supply steam to the mixing chamber (56), and second fuel supply passages (63) and second steam supply passages (64) that are provided closer to an outer peripheral side than the first fuel supply passages (61) and the first steam supply passages (62) and supply fuel and steam to the mixing chamber (56) from the outer peripheral side thereof. Accordingly, the atomization of fluid fuel is facilitated, so

Description

1 burning tip; combustion stove; And a cauldron

Burner tip, combstion burner, and boiler FULL DESCRIPTION BACKGROUND AND INJECTION Atomized fluid The present invention relates to a burner tip that mixes a fluid fuel with an atomized fluid A mixture of fluid fuel and atomized fluid in aerosol form; combustion burner whose flame is formed by the mixture of fluid fuel and nebulized fluid injected from a burner head; and a boiler in which a combustion stove is used. General on a furnace that is hollow and 011-00005000 boiler includes an oil-burning boiler © on the furnace wall in the direction Gla) Install a group of diy burners Install it in a vertical direction; Circumferential and installed over a group of stages in the vertical direction. The combustion burner forms an atomizing flame by injecting liquid fuel into the furnace while the stream fuel is atomized by a ple medium into the furnace. Furthermore it; BL gas channel is connected:; The fuel (0 sale) elements csuperheaters can be burned in the upper part of the oven; The exhaust gas duct is equipped with super heaters Vo and the like that extract heat from the exhaust gas. Accordingly; cise heating ; so that it can generate (ill) heat exchange between the exhaust gas; it was generated by the two methods of combustion in steam. Liquid fuel and atomizing medium After mixing liquid fuel with Vo medium and atomizing medium on the outer side JL atomization, the burning head can inject the formed fuel mixture at the end of the burning head.In addition to the injection holes from a set of injection holes or soot or dust of nitric oxides (Nox) when using fuel that generates nitric oxides or NOX in a burning head; high combustibility must be ensured to reduce (Jalil) much; Like fuel, the number of injection holes in the head (sal) is a lot. For that reason; The dust or soot is considered as the incinerator _ 0. however; if the number of injection holes increases; The distance between adjacent injection holes is reduced. According

_ for that; The injected flows act together and have the shape of a thin cthin film that absorbs the surrounding air with difficulty. For that reason; There is a possibility of ignition failure or combustion failure. For a burner head that solves this problem; There is a burning head clio disclosed as JE in the following patent document. Processing of a set of mixture injection hole sets equipped in the mid-diagonal direction at a predetermined interval in the circular direction lass. General description of the invention There is a burning head in which the fuel injection holes are connected to the middle parts of the mixture injection holes so that the liquid fuel and the atomizing medium are injected after mixing them together, like the above-mentioned burning head that was disclosed in the patent document 1 by OAT. There is a burning head with an internal mixing type burner tip that injects a mixture of atomizing medium and liquid fuel from the injection hole (fs hole Vo) after mixing the atomizing medium with liquid fuel in a mixing chamber formed in it. Even in a burning head of The internal mixing type, then a set of CAs is prepared to bore the mixture at a specified interval VV in a radial direction and a circumferential direction in The incendiary head mentioned above. According to (IA) it is possible to improve the combustibility by preventing overlapping of the injected flows of the mixture after optimizing the atomization of the liquid fuel. However, in the case of the Gola type head with internal mixing which includes the Jalal chamber) A Insufficient diffusion of liquid fuel by the atomizing medium in the mixing chamber. The invention is presented to solve the above problem; The object of the invention is to provide a burner head (Gola) a combustion burner; a boiler which can improve combustion by assisting atomization of the fluid fuel. According to a feature of the present invention; a burner head comprises: a head body; a mixing chamber to be fitted inside the head body ttip body A set of holes for injecting a fluid mixture with base terminal parts attached

__ in the mixing chamber with the head parts open on top of the head body and fixed at a predetermined interval in a circumferential direction to the head body; A set of first fluid fuel supply passages equipped along a longitudinal direction at the base end side of the head body and supplying the fluid fuel to the mixing chamber; A set of first atomized fluid supply passages © equipped along the longitudinal direction at the base end side of the head body and supply the atomized fluid to the mixing chamber; A fluid supply passage is equipped inside the head body to be closer to the outer peripheral side than the first fluid fuel supply passages and the first atomized fluid supply passages and supplies the fluid fuel or the atomized fluid to the mixing chamber from its outer peripheral side. Accordingly; Lay that the first fluid fuel supply passages and the first atomized fluid supply passages are equipped along the longitudinal direction with the head body.” together in the mixing room. Accordingly; atomization of fluid fuel is simplified; So that combustibility can be improved. distinctively in Bola's head; The fuel fluid 1 supply passages and the atomized fluid 1 supply passages are installed next to each other in the circumferential direction of the head body. According to (ll) the fluid fuel supplied to the mixing chamber from the first fluid fuel supply passages and the atomized fluid supplied to the mixing chamber from the first atomized fluid supply passages are next to each other in the mixing chamber. Therefore; the fluid fuel and the atomized fluid are mixed effectively both so that they can Fluid fuel atomization simplified.0 Distinctively in a burner head the first fluid fuel supply and first atomized fluid supply passages are alternately installed in the circumferential direction of the head body. Accordingly, the fluid fuel supplied to the mixing chamber from the fuel supply passages is placed The first fluid and the atomized fluid supplied to the mixing chamber from the first atomized fluid supply passages alternately in the circumferential direction in the mixing chamber.Therefore, the fluid fuel and the atomized fluid are mixed effectively both 0e so that the atomization of the fluid fuel can be simplified.

Co of the invention; The fluid supply passages may include a Gla assembly at the head of an assortment of second atomized fuel supply passages supplying the fluid fuel to the mixing chamber and a set of second atomized fluid supply passages supplying the atomized fluid to the mixing chamber The mixing and the first atomized fluid supply passages and the second atomized fluid supply passages face each other in the direction of the first atomized fluid radial to the head body; The atomized fluid supply passages © and the second fuel fluid supply passages may be installed facing each other in the radial direction of the head body. Accordingly; When the fluid fuel is supplied to the mixing chamber from the first fluid fuel supply passages and the atomized fluid is supplied to the mixing chamber from the first atomized fluid supply passages; The atomized fluid is supplied to the mixing chamber fluid fuel from the second atomized inhibitor supply passages and the inhibited fuel is supplied to the Ys inhibitor atomized in the mixing chamber from the second fluid fuel supply passages. For that reason; The fluid fuel and the atomized fluid are effectively mixed together in the mixing chamber so that the fuel can be easily atomized. Of the invention; The burner tip's fuel supply passages can be individually installed; In the head of the first fluid burner along the circumferential direction of the body of the head »; The first syringe fluid supply passages may be installed along the circumferential direction of the head body; Yo first fluid supply passages and atomized fluid first supply passages can be installed next to each other in a radial direction to the head body. to the mixing chamber from the first atomized fluid supply passages next to each other in the mixing chamber.Therefore, the fluid fuel and the atomized fluid are effectively mixed together so that the atomization of the fluid fuel can be simplified. 0 of the invention; the fluid fuel supply passages can be installed The first Bola in a distinctive way; in a head closer to the outer side in the radial direction of the body of the head than the passing fluid supply passages on a group of “first fluid supply passages”; it can include fluid supply passages and is Install the Jalal fuel supply passages, the second atomized fluid supply that supplies the atomized fluid to the first fluid chamber, and the second atomized fluid supply passages, so that they face each other in the radial Yo-direction of the head body.

h —_ _ accordingly; The atomized fluid is supplied to the fluid fuel in the mixing chamber from the first atomized fluid supply passages and the atomized fluid is supplied to the fluid fuel in the mixing chamber from the second atomized fluid supply passages. Accordingly; The fluid fuel and the atomized fluid are effectively mixed together in the mixing chamber so that the atomization of the fluid fuel can be simplified.

0 distinctively in the head of the Bula of the invention; The head body is equipped with a fluid fuel chamber, the tip part of its base is supplied with liquid fuel and an atomized 33 yall fluid chamber to which the aqueous fluid is supplied. The first group of fluid fuel supply passages extends from the fluid fuel chamber towards Mixing Chamber” and a first atomized fluid supply passage group extending from the atomized fluid chamber towards the mixing chamber.

According to lA since the fluid fuel chamber and the atomized fluid chamber are equipped; It shall be possible conveniently to supply the fuel fluid and the atomized fluid to the mixing chamber from the special set of supply passages as distinguished in the burner head; The head body includes a spray plate and a back plate that connect to each other; The mixing chamber is machined above the spray plate and back plate; Complete

Vo forming a set of fluid mixture injection holes in the spray plate and the first fluid fuel supply passages are formed; First atomized fluid supply passages » and rear panel fluid supply passages. Accordingly » Since the head body includes the spray plate and the back plate; It is possible to easily configure the mixing chamber, fluid mixture injection holes and special supply passages. Accordingly, it is possible to reduce manufacturing costs:

lh in a burner head; The back plate includes a first back plate and a pee back plate approximately 0 between the fluid fuel intermediate chamber back plates an intermediate chamber is fitted and the fluid fuel intermediate chamber or Alls back passages are machined fluid plates so that they are divided by using the intermediate fluid fuel chamber sandwiched between them. Accordingly, since the back plate includes the first and second back plate, it is possible

Yo easily configures private supply lanes. Accordingly, it is possible to reduce manufacturing costs Bonus

0AY

—y— on that; Since the intermediate fluid fuel chamber is equipped between special back plates; It shall be possible conveniently to supply the fluid fuel to the mixing chamber from the special set of supply passages. Distinctively in the burner head; The back plate includes a first back plate and a second back plate; the intermediate atomized fluid chamber is equipped between the first and second back plates; The first atomized fluid intermediate chamber or fluid supply passages shall be so shaped as to be divided by the use of the atomized fluid intermediate chamber 0 interspersed between them. Atomized fluid intermediate chamber It is possible to Aly accordingly; Since the back panel includes the first back panels it is possible to reduce manufacturing costs. Bonus dale easily form special supply lanes. Accordingly; Since the intermediate atomized fluid chamber is equipped between special background plates; It is possible to conveniently supply the atomized fluid to the mixing chamber from the special set of supply passages. 0 fluid According to another feature of the present invention; A combustion burner comprises: an atomized fluid supply pipe that supplies the liquid fuel; fuel supply pipe tip portions that supply the atomized fluid; supply pipe header body at supply pipe head parts fluid fuel supply pipe and atomizer fluid supply pipe; A mixing chamber fitted inside a body of fluid mixture injection holes whose base end parts are connected to the mixing chamber and are de gana the head; Yo the head parts are open on the head of the head body and fixed at a predetermined interval in a circumferential direction of the head body; A set of first fluid fuel supply passages to be equipped along a longitudinal direction at the base end side of the head body and supply the fluid fuel through the fluid fuel supply pipe to the chamber

Gils confused; A group of first atomizer fluid supply passages equipped along the longitudinal direction at the base end of the head body and extending the atomized fluid to the atomized fluid supply pipe to the mixing chamber; The first fluid fuel and first atomized fluid supply passages and supply the fluid fuel or atomized fluid to the mixing chamber from its peripheral outer side. Accordingly; The fluid fuel supplied to the mixing chamber from the first blocking fuel supply passages and the atomized fluid supplied to the mixing chamber from the first atomized fluid supply passages are effectively mixed together in the Yo mixing chamber. Accordingly; The atomization of the fluid fuel is simplified so that the combustibility can be improved.

A —_ _ according to the same other feature of the present invention; in a boiler that burns fuel and air in a hollow furnace and extracts heat by heat exchange in the furnace; Cull The combustion burner described above takes place on the wall of the furnace. Accordingly"; The fluid fuel and the atomized fluid are effectively mixed together in the mixing chamber. oly on it; 0 Fluid atomization is simplified so that combustibility can be improved. According to Burning Head; combustion stove; the kettle of invention; Since a set of first fuel fluid supply passages and a set of first atomized fluid supply passages are arranged along the longitudinal direction of the head body, the fluid fuel and the atomized fluid are effectively mixed together in the mixing chamber. Accordingly; The atomization of fuel call is simplified so that combustibility can be improved. Figure 1 is a planar view of the combustion burner from the first embodiment. the shape ? A cross-sectional view of the combustion burner of the first embodiment vo taken along line ver of Fig. 1 Fig. ; A diagram showing the schematic installation of an oil-burning boiler in the form of a boiler according to the first embodiment. Figure © is a cross-sectional view of a combustion burner incorporating a burner head according to a second embodiment of the invention. 0 Fig. + is a cross-sectional view of the combustion hearth from the second embodiment taken along line 1-7 of Fig #. Figure f is a cross sectional view showing a modification of the combustion burner from the second embodiment.

Claims (1)

py protection elements 1 burner head includes: tip body ul) body A mixing chamber is equipped inside the tip body A group of fluid mixture injection holes whose end parts are connected © The mixing chamber is basal, and the head parts are open to the head tip body The tip body is fixed at a predetermined interval in a circumferential direction tip body for the body of the head 600 A set of first fluid fuel supply passages to be equipped on the A longitudinal direction extension at the side of the tip of the base of the tip body and the flow of fluid fuel 0 to the mixing chamber ¢ mixing chamber A group of atomized fluid supply passages 3 ail Jad first equipped on The extension of the longitudinal direction at the side of the tip of the base of the tip body and the extension of the outflowing fluid atomized fluid to the mixing chamber and dad jes is a fluid supply passage equipped inside the tip body to be closer 0 to the outer side of the jame than the first fluid fuel supply passages And the first atomized fluid supply passages 33d and supply the fluid fuel fluid fuel atomized fluid to the mixing chamber from its side external circumference. Wherein the first fluid fuel supply passages and the first dad 0 atomized fluid supply passages ll are installed next to each other in the direction tip body for circumferential direction “- an incendiary head according to protection element 0; Eh where the first fluid fuel supply passages and the first dad atomized fluid supply passages are alternately installed in the circumferential direction of the tip body -F © head burner of claim 1 or 7; Where the dad fluid supply passage includes a set of second fluid fuel supply passages that supply fluid fuel to ae mixing chamber 10011109 and a set of atomized fluid supply passages atomized fluid supply, which supplies the atomized fluid to the mixing chamber Ll “chamber 0”, the first fluid fuel supply passages, and the second atomized fluid supply passages are installed so that They face each other in a radial direction of the tip body and the first atomized fluid supply passages, and the second Vo fluid fuel supply passages are installed so that they face each other In the radial direction of the tip body - a burning head according to protection element 0, where the first fluid fuel supply passages are installed along the 0 circumferential direction of the body The tip body is installed The first atomized fluid supply passages are along the circumferential direction of the tip body, and the first fluid fuel supply passages and dad passages of the atomized fluid are installed. The first supply passages ll are next to each other in the radial direction Yo of the tip body AY 0 —yvo- a burning head according to Clause 4; -5 the first is closer to the fluid fuel supply passages where the fluid fuel supply passages are installed than the tip body of the head body radial direction the outer side in the radial direction ‎ (sy) atomized fluid supply passages 33a ailall The atomizer and the “mixing chamber” to the first mixing chamber and fluid fuel supply passages to the second fluid fuel supply passages so that they face each other in the atomized fluid supply passages tip body of the tip body radial direction diagonal 0 ip to 5; Where the body of the head (FO) is equipped with a burner according to any of the protection elements uly the tip part of its base is supplied with a fluid fuel chamber using a fluid fuel chamber to which the fluid is supplied an atomized fluid chamber and the atomized fluid chamber fluid fuel “atomized fluid Vo” first extends from the fuel chamber fluid fuel supply passages set of fluid fuel supply passages and “mixing chamber” towards the fluid fuel chamber Be Who did the first atomized fluid supply passages 3 fluid dad mixing chamber towards the mixing chamber atomized fluid chamber 0 tip body? to 6; Where the head body includes 1 burning head in accordance with any of the protection elements 1 - formed (and) connected to each other back plate No 5018 and a back plate on a spray plate “back plate / A 50178 and the back plate Above the mixing chamber The mixing chamber In the spray plate fluid mixture injection holes “Spray plate Yo ov AY” is formed 1+ (sy) fluid fuel supply passages “atomized fluid supply passages ll” and fluid supply passages are formed in the back plate —A 5 Burning head according to protection element FV Where the back plate includes a first back plate and a second back plate, a fluid fuel intermediate chamber is equipped with the first and second back plates; And the first dad or fluid fuel supply passages Ve fluid passages are formed so that they are divided using the fluid supply passages between them. fuel intermediate chamber A header Burner according to protection -4 Vo where the back plate includes a first back plate and a second back plate an atomized fluid intermediate chamber is equipped between the first and second back plates;. And the first atomized fluid supply passages 33all or passages are formed 0 with fluid supply passages so that they are divided using the atomized fluid intermediate chamber intercalated gin -0 combustion burner that includes: a fluid fuel supply pipe that supplies the liquid fuel fluid fuel atomized fluid supply pipe YO ¢fluid of AY Except the body of the head of the supplier at the parts (ul) the Jad pipe, the fluid fuel supply pipe, and the tatomized fluid supply pipe Xl, a mixing chamber that is equipped inside the body of the head, a tip body, a group of Fluid mixture injection holes whose peripheral parts 0 basal are connected to the mixing chamber and the head parts are open at the tip of the body of the head tip Ody and they are installed at a predetermined interval in a circumferential direction of the body of the head tip tbody A set of first fluid fuel supply passages that are equipped along a longitudinal direction at the side of the tip of the base of the head body and supply the fluid fuel with a pipe 0 fluid fuel supply pipe To the mixing chamber, a group of atomized fluid supply passages 3 ail Jad first equipped along the longitudinal direction at the side of the tip of the tip body and supplying the atomized fluid with the atomized atomized fluid supply pipe fluid supply pipe to the mixing chamber and VO passages DAD fluid supply passages equipped in the body of the head to be closer to the external circumferential side than the first DAD fluid fuel supply passages and the first atomized fluid supply passages and supply the fluid fuel fuel or atomized fluid into the mixing chamber from its peripheral outer side. Where the first fluid fuel supply passages and the first dad 0 atomized fluid supply passages ll are installed next to each other in the circumferential direction of the head body. -11 boilers burning fuel and air in a hollow furnace and extracting heat by conducting heat exchange in the furnace; YO where the burner 00070115000 is installed in accordance with Clause 11 on the wall of the furnace ou AY 1 + 1 b 1 b 3 t : 1 3 1 Lo º to whom Vier 3 LTT ve ja lasidi Lepr a J; 0 2 : m i i *\ 1 i d mjan ak zartvi nal 1 ; RARE PERS I the e bog i to oY 3 0 3 i 5 i ed dd sa and d i § . > 7 a ea NNR DF Sr ™ 1 NESS da ES Sed TY ede Val J mo m d i 0 0 0 ki S Oe h ARN LA SY w m on 5 NN 2 Loy m Ns EA Oy i } A WR 1 ROI of Sn H 7 m LOPE m : BY ON DN rN ; ; NOIR for 3 x X Non Y ¥ > 3 9 a and 7 3 ) “ag. 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