中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

301 records (took 0.032 seconds)

    COMPLEX PLANT
    26.
    发明专利
    COMPLEX PLANT 失效

    公开(公告)号：JPH0229501A

    公开(公告)日：1990-01-31

    申请号：JP17816088

    申请日：1988-07-19

    Applicant: BABCOCK HITACHI KK

    Inventor： MORITA SHIGEKI ,  KODA FUMIO ,  MASAI TADAHISA

    IPC: F23C99/00 ,  F02C6/18 ,  F23K3/02

    Abstract: PURPOSE:To make an effective utilization of discharged gas of a gas turbine and reduce an occurrence of NOx by a method wherein the discharged gas of the turbine is passed through a heat exchanger to increase a temperature of a discharged gas of a boiler, its high temperature discharged gas is supplied to a crusher, fine powder coals are transferred to a storing bin, the fine powder coal within the storing bin is transported by the low temperature turbine discharged gas passed through the heat excharger to the boiler so as to perform its combustion. CONSTITUTION:A part 110 of a gas turbine discharged gas 100 is passed through a heat excharger 50, a temperature of a discharged gas 501 from a fine powder coal boiler is increased, a return flow rate of gas is adjusted in such a way as a gas temperature at an inlet of a desulfurization device becomes a predetermined value and then the gas is merged with a discharged gas 120 of the gas turbine. As its remaining volume, fine powder coal supplied from a storing bin 65 by a feeder 67 is transported to a burner as a fine cool conveying line 112. The discharged gas of which temperature is increased by the heat exchanger 50 is sent as a drying line 510 to the mill crusher 60 and a storing line 511. An enthalpy provided by the drying line 510 is mainly used in a coal drying and a temperature of the storing line 511 is decreased. Accordingly, heat loss for the surrounding atmosphere is restricted to a minimum value.

    PULVERIZED COAL COMBUSTION DEVICE
    27.
    发明专利
    PULVERIZED COAL COMBUSTION DEVICE 失效

    公开(公告)号：JPH01200107A

    公开(公告)日：1989-08-11

    申请号：JP16070488

    申请日：1988-06-30

    Applicant: BABCOCK HITACHI KK

    Inventor： OKADA OSAMU ,  MORITA SHIGEKI ,  NAKASHITA SHIGETO ,  MASAI TADAHISA ,  TOMINAGA SHIGERU ,  INADA HIROSHI

    IPC: F23C99/00 ,  F23D1/00

    Abstract: PURPOSE:To prevent wear of a flame stabilizing plate and the occurrence of a seizure trouble, by a method wherein, in a flame stabilizer mounted to the tip of a pulverized coal burner, the flame stabilizing plate is formed from an assembly in which a plurality of ceramics pieces and a plurality of lock metals are alternately combined together in an annular manner. CONSTITUTION:A ceramics ring 27, a flame stabilizing plate 16, a lock ring 28 are located to the tip of a pulverized coal feed pipe 3 of a pulverized coal burner 1. The flame stabilizing plate 16 is formed with an assembly in which a plurality of ceramics pieces 23 and a plurality of lock metals 25 are alternate ly combined together in an annular manner. Further, a protrusion part 26a on the lock metal side of the lock metal 25 is inserted in a dent part 24a on the ceramics side of the ceramics piece 23, and the dent part 24a is engaged with the protrusion part 26a. A protrusion part 24b on the ceramics side of the ceramics piece 23 is inserted in a dent part 26b on the lock metal side of the lock metal 25, and the protrusion part 24b is engaged with the dent part 26b.

    IGNITING/EXTINGUISHING METHOD FOR SLURRY BURNER FOR SLURRY COMBUSTION DEVICE
    28.
    发明专利
    IGNITING/EXTINGUISHING METHOD FOR SLURRY BURNER FOR SLURRY COMBUSTION DEVICE 失效

    公开(公告)号：JPH01193514A

    公开(公告)日：1989-08-03

    申请号：JP1647788

    申请日：1988-01-27

    Applicant: BABCOCK HITACHI KK

    Inventor： TAKAHASHI YOSHITAKA ,  SAKAMOTO KIMIYA ,  MASAI TADAHISA

    IPC: F23D99/00 ,  F23N1/00 ,  F23N5/24

    Abstract: PURPOSE:To enable execution of approximately complete purge without using quantities ot water, by a method wherein, during ignition of a slurry burner, a slurry feed system is purged by means of air and/or steam, and after purging by water is effected, slurry is fed. CONSTITUTION:A coal and water slurry (CWM) burner 9 is set in a state in which fuel may be charged, and a steam check valve 13 and a steam burner inlet valve 14 are opened. Steam is fed from a sprayed medium feed system to the CWM burner 9 to cool the tip of the CWM burner 9 heated to high temperature by a radiant heat from a different CWM burner in a furnace. A CWM water purge valve 4 is switched to a position allowing a purge system to communicate with the CWM feed system and a steam purge valve 24 to a position allowing a CWM feed system to communicate to a sprayed medium feed system. With a steam purge inlet valve 17 opened, steam is also fed to the CWM feed system to first purge a CWM flow passage in the tip of the CWM burner 9 by means of steam for cooling. Thereafter, a water check valve 23 is opened, steam in the interior of the CWM feed system and the CWM burner 9 is replaced with water, and the tip of an atomizer is also cooled by means of water.

    SUPER LOW NOX COMBUSTION DEVICE
    29.
    发明专利
    SUPER LOW NOX COMBUSTION DEVICE 失效

    公开(公告)号：JPS63210508A

    公开(公告)日：1988-09-01

    申请号：JP4472887

    申请日：1987-02-27

    Applicant: BABCOCK HITACHI KK

    Inventor： MASAI TADAHISA ,  MORITA SHIGEKI ,  NAKASHITA SHIGETO

    IPC: F23D1/00 ,  F23C99/00 ,  F23D17/00

    Abstract: PURPOSE:To prevent the clogging of a nozzle as well as the vibration of combustion without precluding the whirling of combustion air, by a method wherein a secondary inner sleeve and a secondary outer sleeve are provided between the flow passageways of secondary air and third air and an annular flat section is formed at the tip ends of the sleeves, while gas nozzles are arranged movably in the axial direction of the sleeve so that gas nozzles penetrate through a space between sleeves and the flat section. CONSTITUTION:The title combustion device is provided with a secondary injection port 22 around an outer plate 9, a flat section 26, provided with a plurality of gas nozzles around the secondary injection port 22, a third guide sleeve 25, provided around the flat section 26, and a third injection port 24, provided around the guide sleeve 25. Gas fuel 10 is supplied to a gas manifold 13 and is supplied into a furnace through a gas supplying pipe 11 and the gas nozzles 12. These gas nozzles 12 are movable by a predetermined amount in the axial direction of a burner. According to this method, third air can be provided with strong whirling without receiving flow resistance by the gas nozzles; therefore, the third air may contribute sufficiently to the combustion of unburnt mixture at the outside or the rear stream of the combustion flames of primary and secondary air.

    COMBUSTION DEVICE FOR LIQUID FUEL
    30.
    发明专利
    COMBUSTION DEVICE FOR LIQUID FUEL 失效

    公开(公告)号：JPS63204008A

    公开(公告)日：1988-08-23

    申请号：JP3612787

    申请日：1987-02-19

    Applicant: BABCOCK HITACHI KK

    Inventor： MASAI TADAHISA ,  MORITA SHIGEKI ,  NAKASHITA SHIGETO ,  KURAMASU KIMIHARU ,  SAKAI MAKOTO

    IPC: F23D99/00 ,  F23D11/38

    Abstract: PURPOSE:To obtain sufficient atomizing effect in the wide range of pressure ratios between liquid fuel and vapor atomizing the fuel by a method wherein at the outlet of the primary confluent port atomizing steam is again blown off from a slit as to intersect perpendicularly to the stream from the primary port and the second step atomization is carried out at the secondary confluent port. CONSTITUTION:Liquid fuel 11 is atomized by atomizing steam 1 supplied from the primary atomizing steam port 2. The steam 1 supplied to the steam chambers 6, 7 through a steam through port 14 is blown off from a slit 8 as the secondary atomizing steam port. This stream intersects almost perpendicularly to the stream vector at the primary confluent port 3. Because liquid fuel films flowing along the wall of the port 3 are blown and torn off by the steam from the slit 8 just as separated steam 15, 16 and flow in atomized condition. Liquid flowing along the wall of secondary confluent port 4 is completely prevented from flowing in fuel film condition. Because at the same time the second step atomization is carried out by the addition of the steam 1 from the slit 8, liquid is extremely atomized.

Patent Agency Ranking