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公开(公告)号：US20220274241A1
公开(公告)日：2022-09-01
申请号：US17635132
申请日：2019-08-29
发明人： Rauno Peippo
摘要： A spring hammer for rapping a surface, the spring hammer includes an anvil with an impact surface. The anvil can fastened to the surface to be rapped. A movable piston has a first end that is in operation moved towards the impact surface of the anvil. A guiding structure guides the piston to move in a defined direction with respect the anvil and a device for launching the piston to move the piston towards the impact surface of the anvil. The piston is a solid block in which the first end of the piston is machined to an integrated flexible spring geometry.
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2.发明授权公开(公告)号：US10118147B1
公开(公告)日：2018-11-06
申请号：US15648491
申请日：2017-07-13
发明人： John Murphy , Pentti Lankinen
摘要： A tubular waterwall structure in a fluidized bed reaction chamber includes horizontally adjacent first and second portions forming a corner structure and constituted by vertical tubes and fins centrally attached to the tubes and having a first width. The first wall portion has an outermost tube next to the corner, an upper portion defining an upper vertical plane in an upper level range and a lower portion defining a lower (outwards) vertical plane in a lower level range. The lower portion has a refractory lining. The second wall portion is vertical and has an outermost tube next to the corner. The outermost tube of the second wall portion is in the lower level region connected to the outermost tube of the first wall portion by a planar lower beveled corner fin having a refractory lining and a width that is larger than the first width.
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公开(公告)号：US20230092056A1
公开(公告)日：2023-03-23
申请号：US17925887
申请日：2020-06-08
发明人： Jussi Pollari
IPC分类号： F22B37/20
摘要： An arrangement for and a method of horizontally supporting a side wall of a top-supported flue gas pass. The side wall includes evaporative water tubes at a first temperature, and the flue gas pass includes a superheating tube at a temperature higher than the first temperature and having rigid, horizontal tube legs extending across the flue gas pass between the side wall and a second side wall of the flue gas pass and being supported from above by a hanger, which is in operation at a temperature higher than the first temperature. Rigidity of the side wall is increased by horizontally supporting the side wall by the horizontal tube legs including end sections attached to the side walls by attaching means allowing relative movements of the end sections with respect to the side wall to which the end section is attached, only in a direction of their relative thermal movement.
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4.发明授权公开(公告)号：US11331637B2
公开(公告)日：2022-05-17
申请号：US17269702
申请日：2018-08-24
发明人： Teemu Rosnell , Ari Kettunen
摘要： An arrangement for controlling a flow of solid particles includes a vertical inlet pipe for directing solid particles downwards and having a bottom at a level L0, a first outlet chute and a second outlet chute in particle flow connection with the vertical inlet pipe and a fluidizing device for directing controlled first and second sub flows to the first and second outlet chutes. The arrangement includes a branch in particle flow connection with an opening on a side wall of the vertical inlet pipe for directing the first sub flow of solid particles to the first outlet chute and a horizontally extending intermediate pipe for directing the second sub flow of solid particles to the second outlet chute. The intermediate pipe includes at least one nozzle feeding fluidizing gas to the intermediate pipe and has a first end in particle flow connection with the bottom of the inlet pipe.
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公开(公告)号：US11209158B2
公开(公告)日：2021-12-28
申请号：US16650079
申请日：2017-10-16
发明人： Pentti Lankinen , Heikki Holopainen , Jussi Pollari , Martyna Poreba-Sebastjan , Slawomir Solipiwko
摘要： A boiler construction includes a boiler pressure body having a bottom and a roof at a height H from the bottom and at least four planar watertube walls forming a polygonal horizontal cross section with at least four corner sections, and a rigid support steel structure, the boiler pressure body being supported to the rigid support steel structure at a height between the bottom and roof. A vertical corner column is attached exteriorly to at least four of the at least four corner sections at a height region between the bottom and roof, and the supporting of the boiler pressure body is provided by supporting each of the vertical corner columns to the rigid support steel structure at a height from 0.1 H to 0.9 H from the bottom so as to balance vertical loads of the boiler pressure body.
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公开(公告)号：US10105647B2
公开(公告)日：2018-10-23
申请号：US15748347
申请日：2016-10-27
发明人： Antti Rokka
摘要： A method of reducing sulfur dioxide emissions of a circulating fluidized bed boiler plant. A first stream of sulfur-containing carbonaceous fuel is fed at a first feeding rate to a furnace of the boiler. A second stream of calcium carbonate containing absorbent having a predetermined d50 particle size is fed at a second feeding rate to the furnace. Oxygen containing gas is fed to the furnace for fluidizing a bed of particles forming in the furnace. Fuel is combusted with the oxygen and the sulfur in the fuel is oxidized to sulfur dioxide. The calcium carbonate is calcined to calcium oxide in the furnace. A portion of the calcium oxide is used to sulfate a first portion of the sulfur dioxide to calcium sulfate in the furnace.
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公开(公告)号：US20230400179A1
公开(公告)日：2023-12-14
申请号：US18252068
申请日：2021-12-07
IPC分类号： F23C10/10
CPC分类号： F23C10/10
摘要： A circulating fluidized bed boiler includes a vertically extending furnace, a separator unit, and an exhaust gas channel connected to the separator unit via a cross over duct. The exhaust gas channel includes a first vertically extending pass, a horizontally extending pass, and a second vertically extending pass. The first vertically extending pass, the horizontally extending pass, and the second vertically extending pass are arranged successively in the gas flow direction such that the horizontally extending pass is configured to connect the first vertically extending pass and the second vertically extending pass with each other. The horizontally extending pass is arranged below the separator unit, which is arranged between the first vertically extending pass and the second vertically extending pass.
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公开(公告)号：US20230016404A1
公开(公告)日：2023-01-19
申请号：US17786258
申请日：2019-12-18
发明人： Antti ROKKA
摘要： A method of operating and an arrangement for a steam boiler system including a furnace and along a following flue gas channel a number of superheaters, a number of economizers, and at least one air preheater located in the flue gas channel downstream of the economizers, a fabric filter baghouse located in the flue gas channel downstream of the air preheater, and downstream of the fabric filter baghouse is located a selective catalytic reduction (SCR) system including an SCR reactor, a high pressure steam coil heater upstream of the SCR reactor and a gas-gas heat exchanger connected upstream and downstream of the SCR reactor to transfer heat from flue gas after the SCR reactor to the flue gas upstream of the high pressure steam coil heater.
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9.发明申请公开(公告)号：US20220023816A1
公开(公告)日：2022-01-27
申请号：US17291748
申请日：2018-11-07
发明人： Jan Cwielag
摘要： A combustor air bar grid for use within a fluidized bed reactor includes at least two main air collector bars in fluid communication with a source of fluidizing gas, a plurality of primary air bars that are transversal to the main air collector bars and arranged on the at least two main air collector bars such that the main air collector bars support them, and in fluid communication to at least two of the main air collector bars. The main air collector bars and the primary air bars define ash removal openings in the air bar grid and a plurality of fluidized nozzles are arranged to each of the primary air bars for fluidizing the bed reactor. A fluidized bed reactor includes such a combustor air bar grid.
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10.发明申请公开(公告)号：US20210316264A1
公开(公告)日：2021-10-14
申请号：US17269702
申请日：2018-08-24
发明人： Teemu ROSNELL , Ari KETTUNEN
摘要： An arrangement for controlling a flow of solid particles includes a vertical inlet pipe for directing solid particles downwards and having a bottom at a level L0, a first outlet chute and a second outlet chute in particle flow connection with the vertical inlet pipe and a fluidizing device for directing controlled first and second sub flows to the first and second outlet chutes. The arrangement includes a branch in particle flow connection with an opening on a side wall of the vertical inlet pipe for directing the first sub flow of solid particles to the first outlet chute and a horizontally extending intermediate pipe for directing the second sub flow of solid particles to the second outlet chute. The intermediate pipe includes at least one nozzle feeding fluidizing gas to the intermediate pipe and has a first end in particle flow connection with the bottom of the inlet pipe.
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