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WO2016001463A1 - Grille de brûlage pour brûleurs de biomasse et brûleur de biomasse - Google Patents

Grille de brûlage pour brûleurs de biomasse et brûleur de biomasse Download PDF

Info

Publication number
WO2016001463A1
WO2016001463A1 PCT/ES2015/070483 ES2015070483W WO2016001463A1 WO 2016001463 A1 WO2016001463 A1 WO 2016001463A1 ES 2015070483 W ES2015070483 W ES 2015070483W WO 2016001463 A1 WO2016001463 A1 WO 2016001463A1
Authority
WO
WIPO (PCT)
Prior art keywords
grill
biomass
combustion
air
combustion chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/ES2015/070483
Other languages
English (en)
Spanish (es)
Inventor
Salvador Roque Mora
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
H20 RENOVABLES SL
Original Assignee
H20 RENOVABLES SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by H20 RENOVABLES SL filed Critical H20 RENOVABLES SL
Publication of WO2016001463A1 publication Critical patent/WO2016001463A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
    • F23B60/02—Combustion apparatus in which the fuel burns essentially without moving with combustion air supplied through a grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H15/00—Cleaning arrangements for grates; Moving fuel along grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/02—Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air above the fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
    • F23M9/04—Baffles or deflectors for air or combustion products; Flame shields with air supply passages in the baffle or shield

Definitions

  • the present invention is encompassed within the field of biomass burners, and more specifically in horizontal flame biomass burners and burn grills for said burners.
  • biomass burners can be used in domestic applications, farms, greenhouses, neighborhood communities, centralized neighborhood systems, public buildings, wood dryers, pool heating, painting, industries, bread ovens, ceramics, etc. . In general, it is a valid system for the vast majority of air or hot water applications. Biomass burners can also work with steam and / or thermal oil boilers.
  • the burn grill object of the present invention solves the problems described above, because its design facilitates the entry and distribution of combustion air inside the burner home, causing that, with the corresponding specific regulation, can be carried out the combustion of any type of biomass of the commonly used, such as nutshell, pellet or bone, of Different backgrounds and nature.
  • access through the front of the burner greatly facilitates the maintenance operations to be performed, minimizing these with respect to the burners currently on the market.
  • the object of the invention is the optimized design of a burn grill for multi-fuel horizontal flame burners, valid for any type of biomass.
  • the geometric characteristics of the grill allow the combustion with high performance, lower ash content and lower maintenance, of any type of biomass (pellet, bone, fruit peel, etc.) unlike the rest of burners in the market, limited to biomass that meet certain requirements that allow their proper combustion.
  • the burn grill has intermediate fire plates located on the grill, which are also likely to be placed directly in the combustion chamber, in the area immediately below the grill itself, fulfilling the same function and being independent of Grill. That is, the fire plates can be fixed to the grill itself or to the combustion chamber, in the area below the grill.
  • the grill extraction system on the front of the burner, also facilitates its maintenance operations, avoiding disassembly and minimizing the time required for the maintenance of the installation.
  • Figure 1 shows a horizontal flame burner used for biomass combustion, according to the state of the art.
  • Figure 2 shows a front section of a horizontal flame burner incorporating the burn grill object of the present invention.
  • Figures 3A, 3B and 3C show different views of the developed burn grill.
  • Figures 4A and 4B show, respectively, a front view and a side section of the burner incorporating the developed burn grill.
  • Figure 5 shows a side section of the burner, illustrating the feeding and arrangement of the combustible material inside the combustion chamber.
  • Figure 6 shows the distribution of the combustion air inside the combustion chamber of the horizontal flame burners existing in the market.
  • Figure 7 shows a profile view of the grill, with the arrangement of plates for cutting air, or firewalls, which facilitate the distribution of combustion air to the areas of the grill with greater demand for oxidizing air, allowing effective combustion of most of the fuels and increasing the energy efficiency of the burner.
  • Figure 8 shows a profile of the grill, which shows the combustion air passages enabled in the barriers or firewalls, through the difference in height between them.
  • Figure 9 shows the flow of combustion air in the lower area of the combustion chamber generated by the burn grill.
  • FIGS 10 and 1 1 show the grill with intermediate firewalls of the same height and openings in them.
  • Figure 12 shows a longitudinal sectional view of the combustion chamber with the grill with intermediate firewalls and openings therein. Different views of an alternative embodiment are shown in Figures 13A to 13E, where the intermediate firewalls are located integral to the combustion chamber, rather than in the grill.
  • FIG. 1 shows the main components of a biomass burner 10 of conventional horizontal flame, according to the state of the art:
  • combustion chamber 1 In any type of horizontal flame biomass burner, two distinct zones can be distinguished: the combustion chamber 1 and the discharge zone (other elements).
  • the operation of a burner of this type is as follows: the feeding of the biomass is carried out through the feeding tube 4 by means of an endless screw, from the hopper in which the biomass is stored.
  • the electric motor 5 drives another screw that feeds the biomass into the combustion chamber 1, on the burn grill located inside.
  • the spark for the initial ignition of the burner is achieved by means of a spark plug or ignition system 6.
  • the combustion air supply is carried out by means of the turbine 3 coupled in the discharge zone, which introduces the necessary air for combustion inside from the ventilation box 2, and from there to the combustion chamber 1.
  • FIG. 2 shows a front section of the combustion chamber 1 of a burner incorporating the removable burn grill 8 object of the present invention.
  • the figure shows the outer tube 18 of the combustion chamber 1 and an inner reflector 19 with openings or holes 20 on the sides of its upper part for the passage of air from the discharge zone to the interior of the combustion chamber 1 and the refrigeration of this one.
  • the design and geometric characteristics of the burn grill 8 allow the adequate combustion of any type of biomass, with high performance and minimum maintenance operations and increased equipment durability, avoiding overheating.
  • the grill extraction device by the front of the combustion chamber 1 of the burner, is possible by means of guides enabled for this purpose inside the combustion chamber 1.
  • the extraction of the burn grill 8 is carried out by the front part of the burner, sliding it in the guides enabled for this purpose. This extraction device facilitates the cleaning of the equipment, avoiding disassembly and minimizing the time dedicated to maintenance operations.
  • the most important novelty of the present invention lies in the optimized geometric design of the burn grill 8, which allows the entry of combustion air for the complete combustion of biomass with a minimum percentage of ashes and unburned.
  • the removable burn grill 8 of optimized design and high efficiency for biomass combustion is shown in different views (an elevation, a front view and a side view, respectively), which can have a handle or handle 15, to facilitate grill handling
  • the burn grill 8 has a series of perforations to allow the passage of combustion air from the discharge zone through its lower part.
  • Said perforations are preferably implemented in the form of holes 12 and grooves 13, of variable geometry and shape.
  • the location of the holes 12 and grooves 13 can also be modified depending on the power of the burner and the nature of the fuel that is intended to be used, since the specific needs of combustion air penetration may vary.
  • grooves 13 are seen in the base of the grill 8 and holes 12 on the side thereof, but the grill could for example have only holes 12 in the base, or a combination of holes 12 and grooves 13 at the base, grooves 13 on the side instead of holes 12, or any other combination of perforations.
  • the base and the side of the grill respectively have grooves 13 and holes 12 along the entire length of the grill.
  • the most important aspect, and that explains the high performance of the biomass burner 10, is related to reinforcements, firewalls or intermediate plates 14 that the burn grill 8 has in its lower part, which are preferably arranged perpendicular to the base of the grill, that is, vertical.
  • the intermediate plates 14 are arranged in the intermediate part of the grill and allow an adequate distribution of the air in the combustion chamber 1 of the burner. In particular, they distribute the combustion air to the different areas of the burn grill 8 according to the oxygen demand, for the adequate combustion of the material used as fuel.
  • the intermediate plates 14, which can be one or several, are arranged along the burn grill 8.
  • the burn grill 8 has a front closure plate 14 'at the rear end of the grill, being able to present openings or perforations of variable geometry, as will be detailed later.
  • Figure 4A shows a front view of the burner incorporating the burn grill 8 object of the present invention
  • Figure 4B represents a side section of the burner according to section AA indicated in Figure 4A.
  • the hole 16 can be seen where the screw 17 pushes the biomass into the combustion chamber, the outer tube 18 of the combustion chamber, the inner reflector 19 with openings or holes 20 on the sides of its upper part for the passage of air from the discharge zone into the combustion chamber 1, the photocell 21, which indicates the operating status of the burner, the spark plug 22 and the ventilation box 2 through which the driven air enters through turbine 3 (not shown in the figure).
  • FIG 5 shows, according to the same section A-A of Figure 4A, the distribution of biomass 30 as it enters the combustion chamber 1. As can be seen, biomass 30 accumulates in greater quantity in the initial part of the burn grill 8.
  • the process that occurs inside the combustion chamber is as follows: the feeding of biomass 30 (pellet, bone, nutshell, etc.) is carried out from the screw 17.
  • the entry of the combustion air that causes the Fuel combustion is generated by turbine 3 located at the rear of burner 10.
  • the air introduced by the turbine is distributed as shown in Figure 6.
  • the combustion air driven by the turbine 3 is released from the ventilation box 2 to two areas mainly :
  • the air pressure generated in that upper zone also contributes to providing the appropriate characteristics to the flame generated by the fuel.
  • the burn grill 8 in addition to the front closure plate 14 ', incorporates two intermediate plates 14 along the length of the grill, a different number of plates or firewalls can be incorporated in different grill positions, depending on the type of fuel and the needs of combustion air in each specific case.
  • the existing grills do not present these barriers or firewalls, so the present invention constitutes a novelty of impact.
  • These barriers are the fundamental basis of the present invention, since they allow greatly increasing the burner performance, minimizing the presence of ashes and avoiding overheating in the combustion chamber, with respect to traditional combustion systems, among other advantages.
  • the present burn grill 8 incorporates several barriers or firewalls, with an adequate geometry and arrangement to produce an increase in air flow and pressure oxidizer in the initial area of the grill, in which greater density of fuel accumulates and in which there is a greater demand for combustion air.
  • Figure 9 shows the flow of combustion air in the lower zone 33 of the combustion chamber 1, generated by the air inlet driven by the turbine 3 from the ventilation box 2, and by the intermediate plates 14.
  • the plates or firewalls enabled on the grill can also be located in the combustion chamber, in the area immediately below the grill itself, in case it does not incorporate said firewalls that optimize the combustion of the corresponding biomass.
  • the plates or firewalls enabled on the grill, or directly in the combustion chamber, can also have the same height.
  • the fire plates have perforations or openings 34, of variable geometry and location, which allow the passage of air through them, either by the top or by their central part, as can be seen in the Figures 10, 11 and 12. In this way, the combustion of the material located in the area immediately above the contact strip between the firewall and the grill will be carried out with great performance, there being no "dead zones" in the chamber of combustion, and the combustion air being distributed homogeneously.
  • the air passages enabled in the grill can not only come through the difference in height between the firewalls, but openings 34 in said firewalls can be enabled, if they have the same height.
  • a combination of both could also be arranged (different heights of firewalls and openings 34).
  • Figure 10 shows the grill with firewalls of the same height, in which holes have been made, of varying geometric characteristics depending on the operating regulation, for the upper air passage between the compartments delimited by the firewalls.
  • Figure 1 1 shows the grill without the front closure, where the openings 34 in the firewalls are better appreciated.
  • the firewalls, barriers or intermediate plates 14 are located in solidarity with the base of the combustion chamber, instead of being incorporated in the base of the grill, but they fulfill the same function.
  • Figures 13A-13E show different views of the combustion chamber for this preferred embodiment, in which the mounted grill is not shown.
  • Figure 13C shows another view of the combustion chamber where the openings 34 are shown in the intermediate plate 14.
  • Figure 13D shows a sectional view of the combustion chamber 1 and Figure 13E a top view of the combustion chamber with intermediate plates 14 with openings 34 and front closure plate 14 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

L'invention concerne une grille de brûlage (8) pour brûleurs de biomasse, sur la surface de laquelle est formée une pluralité de perforations, se présentant sous forme d'orifices (12) et de rainures (13), pour permettre le passage, depuis sa partie inférieure, d'air comburant provenant de la zone inférieure (33) de la chambre de combustion (1) d'un brûleur de biomasse (10). La grille de brûlage (8) comprend au moins une plaque intermédiaire (14) disposée au niveau de sa partie inférieure qui fait office d'obstacle au passage d'air comburant par ladite zone inférieure (33), ce qui facilite l'entrée et la distribution d'air comburant à l'intérieur du brûleur et permet la combustion de n'importe quel type de biomasse.
PCT/ES2015/070483 2014-07-03 2015-06-23 Grille de brûlage pour brûleurs de biomasse et brûleur de biomasse Ceased WO2016001463A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESU201430919 2014-07-03
ES201430919U ES1126705Y (es) 2014-07-03 2014-07-03 Parrilla de quemado para quemadores de biomasa y quemador de biomasa.

Publications (1)

Publication Number Publication Date
WO2016001463A1 true WO2016001463A1 (fr) 2016-01-07

Family

ID=51626761

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2015/070483 Ceased WO2016001463A1 (fr) 2014-07-03 2015-06-23 Grille de brûlage pour brûleurs de biomasse et brûleur de biomasse

Country Status (2)

Country Link
ES (1) ES1126705Y (fr)
WO (1) WO2016001463A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2791575A1 (es) * 2020-06-22 2020-11-04 Posada Gonzalez Manuel Enrique Nuevo quemador de sólidos, de carga y alimentación superior, cámara de combustión y llamas horizontales sin humos, con alto rendimiento
PL236936B1 (pl) * 2019-03-09 2021-02-22 Klimosz Spolka Z Ograniczona Odpowiedzialnoscia Palnik kotła pelletowego

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6397764B1 (en) * 2001-09-14 2002-06-04 Sammy K. Massey Animal carcass incinerator
CA2585204A1 (fr) * 2007-04-18 2008-01-30 Brad Palmer Un systeme pour la combustion efficace de la biomasse
JP2012073012A (ja) * 2010-09-27 2012-04-12 Norume Boiler Co Ltd ペレット燃焼装置
EP2530379A2 (fr) * 2011-05-30 2012-12-05 Robert Bosch Gmbh Brûleur pour une chaudière à biomasse et chaudière à biomasse
EP2662622A1 (fr) * 2012-05-11 2013-11-13 Perfecto Forte Jimenez Brûleur de biomasse avec une grille panier amovible
ES1129530U (es) * 2014-04-08 2014-10-21 Juan Bautista ORIHUEL PONS Quemador de biomasa sólida

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6397764B1 (en) * 2001-09-14 2002-06-04 Sammy K. Massey Animal carcass incinerator
CA2585204A1 (fr) * 2007-04-18 2008-01-30 Brad Palmer Un systeme pour la combustion efficace de la biomasse
JP2012073012A (ja) * 2010-09-27 2012-04-12 Norume Boiler Co Ltd ペレット燃焼装置
EP2530379A2 (fr) * 2011-05-30 2012-12-05 Robert Bosch Gmbh Brûleur pour une chaudière à biomasse et chaudière à biomasse
EP2662622A1 (fr) * 2012-05-11 2013-11-13 Perfecto Forte Jimenez Brûleur de biomasse avec une grille panier amovible
ES1129530U (es) * 2014-04-08 2014-10-21 Juan Bautista ORIHUEL PONS Quemador de biomasa sólida

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL236936B1 (pl) * 2019-03-09 2021-02-22 Klimosz Spolka Z Ograniczona Odpowiedzialnoscia Palnik kotła pelletowego
ES2791575A1 (es) * 2020-06-22 2020-11-04 Posada Gonzalez Manuel Enrique Nuevo quemador de sólidos, de carga y alimentación superior, cámara de combustión y llamas horizontales sin humos, con alto rendimiento

Also Published As

Publication number Publication date
ES1126705U (es) 2014-10-06
ES1126705Y (es) 2015-05-12

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