EP 3940292 B1 20230607 - MULTI-TUBE ONCE-THROUGH BOILER
Title (en)
MULTI-TUBE ONCE-THROUGH BOILER
Title (de)
MEHRROHR-DURCHLAUFKESSEL
Title (fr)
CHAUDIÈRE À CIRCULATION FORCÉE À TUBES MULTIPLES
Publication
Application
Priority
JP 2019010813 W 20190315
Abstract (en)
[origin: EP3940292A1] In a multi-tube once-through boiler, a structure is obtained in which recovered oil and waste solvent can be used as combustion gas for generating consumed steam and cleaning of water tubes can be performed easily.In a multi-tube once-through boiler configured such that boiler water within water tubes is heated and evaporated to take out consumed steam, a combustion chamber (9) has a horizontally extending cylindrical shape, each water tube has an arc shape arranged on left and right sides of the combustion chamber (9), rows of water tubes arranged on the left and right of the combustion chamber (9) are respectively connected by linear left and right upper headers (1) provided at upper ends and linear left and right lower headers (2) provided at lower ends, a lid body (door) (22) is formed on one end side facing the combustion chamber (9) and a burner (10) for supplying combustion gas to the combustion chamber (9) is provided, and the burner (10) is provided with a recovered oil supply unit for supplying recovered oil, a waste solvent supply unit for supplying a waste solvent, an injected air supply unit, a combustion air supply unit, and a control unit for controlling the supply of the recovered oil, the waste solvent, the injected air, and the combustion air.
IPC 8 full level
F22B 21/30 (2006.01); F22B 21/22 (2006.01)
CPC (source: EP KR US)
F22B 21/20 (2013.01 - KR); F22B 21/22 (2013.01 - EP); F22B 21/30 (2013.01 - KR US); F22B 21/346 (2013.01 - EP); F22B 21/36 (2013.01 - KR); F22B 21/366 (2013.01 - EP); F22B 29/062 (2013.01 - EP US); F23C 3/002 (2013.01 - EP); F23D 11/001 (2013.01 - EP); F23D 11/10 (2013.01 - US); F23N 1/02 (2013.01 - US); F23D 2202/00 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3940292 A1 20220119; EP 3940292 A4 20221116; EP 3940292 B1 20230607; CN 113557389 A 20211026; DK 3940292 T3 20230626; ES 2954770 T3 20231124; JP 7128344 B2 20220830; JP WO2020188625 A1 20200924; KR 102681499 B1 20240703; KR 20210122831 A 20211012; PL 3940292 T3 20231106; US 2022170626 A1 20220602; WO 2020188625 A1 20200924
DOCDB simple family (application)
EP 19919815 A 20190315; CN 201980093884 A 20190315; DK 19919815 T 20190315; ES 19919815 T 20190315; JP 2019010813 W 20190315; JP 2021506793 A 20190315; KR 20217028183 A 20190315; PL 19919815 T 20190315; US 201917433376 A 20190315