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1.发明公开Steam cycle efficiency improvement with pre-economizer 审中-公开Dampfzyklus-Wirksamkeitsverbesserung mitVorwärmung
公开(公告)号：EP2434051A1
公开(公告)日：2012-03-28
申请号：EP11179701.5
申请日：2011-09-01
CPC分类号： F22B31/045 , D21F5/20 , F22D1/32 , Y02E20/12
摘要： A method for improving pulp mill steam cycle efficiency includes the steps of providing at least one deaerator tank having a first pressure, and lowering the pressure of said deaerator tank to a second pressure. Feedwater is supplied to a pre-economizer, where it is heated. The water is then delivered to at least one feedwater heater, where it is heated. The water is then delivered to an economizer. By this method boiler steam rate is increased while boiler efficiency is maintained and turbine extraction for deaerator and feedwater heating is minimized.
摘要翻译： 一种提高纸浆厂蒸汽循环效率的方法包括以下步骤：提供至少一个具有第一压力的除气罐，并将所述脱气罐的压力降低到第二压力。 给水被提供给预热器，在那里它被加热。 然后将水输送到至少一个给水加热器，在那里加热。 然后将水输送到节能器。 通过该方法，锅炉蒸汽速率提高，同时保持锅炉效率，并且除气器和给水加热的涡轮机提取最小化。
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公开(公告)号：EP2423587A2
公开(公告)日：2012-02-29
申请号：EP10156116.5
申请日：2010-03-10
发明人： Cerney, Brian J. , Stirgwolt, William R. , Albrecht, Melvin J. , Thomas, Kevin R. , Brechun, George B. , Monacelli, John E.
摘要： An integrated water coil air heater and economizer arrangement for a boiler has a feedwater inlet for supplying feedwater to the boiler, and conduits and a valve for splitting the feedwater from the inlet into a first partial lower temperature, lower mass flow stream, and a second partial higher temperature, higher flow stream. A water coil air heater for passage of air to be heated for the boiler contains at least one heat transfer loop in heat transfer relationship with the air, the heat transfer loop of the water coil air heater being connected to receive the first partial stream. An economizer for passage of flue gas to be cooled for the boiler contains at least one heat transfer loop in heat transfer relationship with the flue gas, the heat transfer loop of the economizer being connected to the heat transfer loop of the water coil air heater for receiving the first partial stream from the water coil air heater. A mixing location downstream of the economizer receives and reunites the first and second partial streams and a conduit carries the second partial stream from the feedwater inlet to the to the mixing location.
摘要翻译： 用于锅炉的集成的水盘式空气加热器和节能器装置具有用于向锅炉供水的供水入口，以及用于将进水从入口分为第一部分较低温度，较低质量流量的管道和阀，以及第二 部分温度较高，流量较大。 用于锅炉待加热空气的水盘式空气加热器包含至少一个与空气传热关系的传热回路，水盘管式空气加热器的传热回路连接以接收第一部分流。 用于通过待锅炉的烟道气的节能器包含至少一个与烟道气传热关系的传热回路，节能器的传热回路与水盘式空气加热器的传热回路连接， 从水线圈空气加热器接收第一部分流。 在节能器下游的混合位置接收并重新组合第一和第二部分流，导管将第二部分流从给水入口运送到混合位置。
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3.发明公开Integrated split stream water coil air heater and economizer (IWE) 审中-公开集成Spirallufterhitzer用水子流和所述预热器（IWE）
公开(公告)号：EP2423587A3
公开(公告)日：2014-01-22
申请号：EP10156116.5
申请日：2010-03-10
发明人： Cerney, Brian J. , Stirgwolt, William R. , Albrecht, Melvin J. , Thomas, Kevin R. , Brechun, George B. , Monacelli, John E.
摘要： An integrated water coil air heater and economizer arrangement for a boiler has a feedwater inlet for supplying feedwater to the boiler, and conduits and a valve for splitting the feedwater from the inlet into a first partial lower temperature, lower mass flow stream, and a second partial higher temperature, higher flow stream. A water coil air heater for passage of air to be heated for the boiler contains at least one heat transfer loop in heat transfer relationship with the air, the heat transfer loop of the water coil air heater being connected to receive the first partial stream. An economizer for passage of flue gas to be cooled for the boiler contains at least one heat transfer loop in heat transfer relationship with the flue gas, the heat transfer loop of the economizer being connected to the heat transfer loop of the water coil air heater for receiving the first partial stream from the water coil air heater. A mixing location downstream of the economizer receives and reunites the first and second partial streams and a conduit carries the second partial stream from the feedwater inlet to the to the mixing location.
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