• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. BURNER DEVICE, containing coaxially arranged pipes for supplying oxidizer and fuel, the latter of which is equipped with a nozzle with an output nozzle device, as well as a mixer-nj, placed at the outlet of the pipe for supplying oxidant and installed at the outlet of the ocii device with the possibility of longitudinal the displacement of the reflector, which forms a clearance with the mixer butt, characterized in that, in order to increase the combustion completeness by checking the quality of the mixture, the fuel pipe is rigidly attached or monsch threaded joint. i sl 4
    公开号:SU1125441A1
    申请号:SU807771251
    申请日:1980-06-17
    公开日:1984-11-23
    发明作者:Рольф Майвальд；Йохен Лудвиг；Вальтер Леренц
    申请人:Мансфельд Комбинат Вильгельм Пик(Инопредприятие)；
    IPC主号:
    专利说明:

    2. VcrpoHCTiio according to claim I, characterized by 1 (m, that in the pipe for supplying oxidant II), .ifiii ;.) L1M I.1N several swirlers,, ,, ((i 1р (t 11vop () false direction
    ). .SI yuistvo IIII. 1 and 2, different; i-i ;, chgo nozzle apparatus is made in the form of, icMi.i radna.ayy channels or ring oh them, located before, between or
    behind the swirlers in the direction of fuel supply, and the radial channels are tilted up or down at an angle of 15-45 ° to the horizon.
    4. Device on PP. 1-3, characterized by That the mixer is vypo, 1nen removable.
    5. Device on PP. 1-5, characterized in that the reflector has an annular coolant cavity and is supplied with a heating fluid cym. M screen movably connected
    with it using a metal rod.
    The invention relates to energy and can be used for direct combustion of preferably liquid and gaseous fuels in a fluidized bed, as well as for spraying a liquid medium in a fluidized bed. The technical solution to the invention is most closely related to the burner (ed. St. USSR No. 737705), which contains a coaxially arranged pipe for supplying oxidant and fuel, the latter of which is equipped with a nozzle with an outlet nozzle, as well as output from the pipe for f; game oxidizer, and installed at the outlet along the axis of the device with the possibility of moving up to: 1H1og () interleaving the reflector, forming an 1PI with an end face of the mixer, an adjustable gap. () Dpako for well-known devices is characterized by insufficient combustion due to poor mixing quality. The inventive principle is to increase the completeness of combustion by improving the quality of mixing. The goal is achieved by the fact that in a burner device containing coaxially arranged pipes for supplying oxidizer and fuel, the latter of which is equipped with a nozzle with an outlet nozzle apparatus, as well as a mixer placed at the outlet of the pipe for supplying the oxidant and installed at the outlet along the axis devices with the possibility pr () D () Lin; the displacement of the reflector. forming a gap between the mixer and the end of the mixer is a 1Y gap, the nozzles are connected to the fuel coarsely rigidly or by means of a threaded joint. In the oxidizer supply pipe, install; ieno one or more swirlers with the most opposite direction of the blades. In addition, the nozzle apparatus is made in the form of a system of radial channels or an annular gap located in front of, between, or behind swirlers in the direction of fuel supply, and the radial channel is inclined up or down at an angle of 15 to 45 ° to the horizon. In addition, the mixer is removable. The reflector has an annular cooled cavity and is equipped with a heat shield, movably connected to it with a metal rod. FIG. 1 shows the proposed device, a vertical section; in fig. 2-nozzle apparatus in the form of an annular gap, option. The device contains coaxially arranged pipes 1 and 2 for guduchi respectively oxidizer and fuel, the latter of which is equipped with a nozzle 3 with an output nozzle apparatto.m, as well as a mixer 4 placed at the outlet of pipe 1 for supplying the oxidant, and installed at the outlet along the axis of the device with the possibility of longitudinal movement of the reflector 5, which forms an adjustable gap 6 with the end face of the mixer 4. The nozzles 3 are connected to the fuel pipe 2 rigidly or by means of a threaded joint 7. In the oxidizer supply pipe 1, one or several swirlers 8 with mutually opposite direction of the blades. The nozzle apparatus is designed as a system of radial channels 9 or an annular slot 10 located in front of, between or behind swirlers 8 in the direction of fuel supply, and radial channels 9 are tilted up or down at an angle of 15-45 ° to the horizon. The mixer 4 is made removable, and the reflector 5 has an annular coolant cavity 11 and is equipped with a safety shield 12 movably connected to it by means of a metal rod 13. The device is provided with a protective ceramic casing 14.
    The device works as follows.
    The oxidizer through pipe 1 is fed into the cavity of the mixer 4, where it mixes with the fuel coming through the radial channels 9 or the annular shell 10 of the exit nozzle apparatus Pasad 3. connected to the fuel pipe 2. The air-heated mixture leaves the adjustable gap 6 in the form of a flat circular a torch burning on the surface of a wired ceramic casing 14.
    Due to the intensive mixing of the fuel and the oxidizer (for example, air), the burner operates in the Piryok limit of excess air with a steady flame. The flame is so stable that during the start of the fluidized bed furnace, after ignition of the burner grill and after a short heating, cold solid can be introduced into the reactor without extinguishing the flame. The fluidized bed that forms can be heated to a predetermined temperature for several minutes. At a fluidized bed temperature above 800-850 ° C, it is possible to work with any excess air ratio. To adapt the burner to different fluidization conditions (for example, to different speeds of medium movement), the reflector 5, fastened with the nozzle 4, is mounted with a possibility of longitudinal movement, as a result of which the area of the gap 6 is changed for the output of the fuel mixture and thus the "living section" lattice.
    Increasing the mixing effect and obtaining an absolutely homogeneous mixture of air and fuel can be ensured by installing one or several swirlers 8 before and / or after the fuel inlet into the bale layer, depending on the desired mixing intensity. Optimal intensification of mixing can be achieved with a mutually opposite direction of the blades.
    In addition, the mixing conditions are affected by the location of the radial channels 9 or the annular gap 10 of the nozzle 3 anywhere in the cross section of the mixer 4, the inner surface of which has the shape of a diffuser. If less intensive mixing is required, the fuel is injected over the maximum "live cross section of mixer 4. If optimal mixing is required, fuel must be introduced into the zone of minimum cross section.
    With such a design, the device is applicable in the P1rokom 1 limit of the muddy (merpo from 15 to 80-10 kJ / m - volume of the fluidized bed). The replacement of smsptell 4 by another mixer of a higher or lower live cross section makes it possible to use this device for any quality fuel. This allows a wide range to vary the amount of feed (mx) of oxidant and its rate of flow.
    The forced connection of a fuel pipe with a nozzle simplifies the design performance of the retenuity, which consists of a large number of burners, since in this case it is not necessary to precisely center the device.
    In order to avoid premature replenishment of the flame in the fuel compartment, the reflector 5 is made with an annular cooled cavity 11, which is cooled directly by the top fuels (a clear mixture.
    The device, due to its design, is preferably suitable for heating the fluid bed. For the known methods of granulation in a fluidized bed, aimed at the continuous increase in the grain size due to splashing of the liquid, this device can be
    0 used unchanged; here, only a liquid medium is supplied to the fuel tube 2, the need for d, g of pellet production is required. Compared to the well-known method of introducing liquid from above, the use of the proposed device, by means of which liquid is supplied from below, allows the material to be processed in a parallel flow. Thus, it is possible to avoid the entrainment of a part of the liquid mist with a rising fluidizing agent, as is the case in
    (1 case of liquid injection from the top. In addition, the intensity of mixing in the vertical direction when splashing the liquid from the top is reduced significantly, because the liquid is distributed only on the surface of the layer. Therefore, the use of the invention for this purpose gives significant advantages.
    2
    权利要求:
    Claims (4)
    [1]
    I. BURNER DEVICE, containing coaxially arranged pipes for supplying oxidizer and fuel, the last of which is equipped with a nozzle with an outlet nozzle apparatus, as well as a mixer located at the outlet of the pipe for supplying oxidizer and mounted on the axis of the device with the possibility of longitudinal movement of the reflector, forming an adjustable gap with the end of the mixer, characterized in that, in order to increase the completeness of combustion by improving the quality of mixing, the nozzles are connected to the fuel pipe rigidly or by screw connection.
    *
    [2]
    2. The device according to π. 1, characterized in that in the pipe for supplying the oxidizing agent it is> k · ί; ί> o /! I‘ii or several swirlers c and y,:. (, In the opposite direction • 41 I: M .
    [3]
    3. Υι ί swarm of pi. 1 and 2, characterized by. c, that the nozzle apparatus is made in the form of a gem of radial channels or an annular gap located in front of, between, or behind the swirlers in the direction of fuel supply, and the radial channels are inclined up or down at an angle of 15–45 ° to the horizontal.
    [4]
    4. The device according to paragraphs. 1-3, characterized in that. that the mixer is removable.
    about. The device according to PP. 1-1, characterized in that the reflector has an annular cooled cavity and is equipped with a heat shield that is movably connected to it using a metal rod.
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    同族专利:
    公开号 | 公开日
    DE3015798A1|1981-01-22|
    DD143817A1|1980-09-10|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2733614C1|2017-04-26|2020-10-05|Линде Акциенгезельшафт|Method and burner for heating metal processing furnace|DD62921A|
    DE1906895C3|1969-02-12|1976-01-08|Metallgesellschaft Ag, 6000 Frankfurt|Device for direct heating of a fluidized bed reactor|
    DD113622A1|1974-08-02|1975-06-12|
    DD116300A1|1974-11-18|1975-11-12|
    SE401866B|1976-09-30|1978-05-29|Stal Laval Turbin Ab|SWEET BURNING CHAMBER|US4445844A|1982-12-20|1984-05-01|Combustion Engineering, Inc.|Liquid fuel and air feed apparatus for fluidized bed boiler|
    AT401099B|1987-07-21|1996-06-25|Sgp Va Energie Umwelt|Gas distributor grate for a fluidized bed of a fluidized-bed reactor, in particular of a fluidized-bed furnace, and a method for gasifying the fluidized bed|
    DE19537636B4|1995-10-10|2004-02-12|Alstom|Power plant|
    DE19963478C2|1999-12-28|2001-11-15|Alstom Power Boiler Gmbh|Burner device and fluidized bed combustion system operated with at least one burner device|
    FI116315B|2004-04-02|2005-10-31|Foster Wheeler Energia Oy|Fluidized bed reactor grate nozzle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD21409279A|DD143817A1|1979-07-04|1979-07-04|DEVICE FOR DIRECT FUEL COMBUSTION IN A SWIVEL LAYER|
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