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公开(公告)号：US06237587B1
公开(公告)日：2001-05-29
申请号：US09368837
申请日：1999-08-05
IPC分类号： F24B118
摘要： Pollutants in the exhaust from wood burning in a fireplace are removed by positioning reticulated foam between the smoke chamber and the flue. The reticulated foam is a three dimensional latticework of interconnected ligaments forming a porous, open-celled structure with a large internal surface area. The internal surfaces are coated with a catalytic material which converts pollutants in the exhaust to harmless compounds. Heat from the exhaust, when the fire is burning, maintains the catalyst at a temperature for efficient conversion operation. Thermostatically controlled heaters are embedded in the foam, or thermostatically controlled electrical current is applied directly to the catalyst, to raise the catalyst temperature when the fire is growing or smoldering, periods during which the exhaust temperature is insufficient for good conversion operation.
摘要翻译： 通过在烟室和烟道之间定位网状泡沫来消除在壁炉中燃烧的木材排放物中的污染物质。 网状泡沫是互连韧带的三维网格，形成具有大的内表面积的多孔，开孔结构。 内表面涂覆有将废气中的污染物转化为无害化合物的催化材料。 从排气口排出的热量，当火焰燃烧时，将催化剂保持在有效转化操作的温度。 恒温控制的加热器嵌入泡沫中，或者恒温控制的电流直接施加到催化剂上，以在火焰生长或阴燃时提高催化剂温度，在此期间排气温度不足以实现良好的转化操作。
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公开(公告)号：US6067979A
公开(公告)日：2000-05-30
申请号：US129125
申请日：1998-08-04
申请人： Dennis R. Jaasma , Mark R. Champion
发明人： Dennis R. Jaasma , Mark R. Champion
摘要： A combustion system includes a primary combustion chamber divided into left and right sides by fuel-retaining standards defining a canyon or void extending into a secondary combustion chamber is provided. The floor of the primary combustion chamber and the fuel-retaining standards direct the burning solid fuel toward the lower part of the canyon, while at the same time retaining the non-burning solid fuel on either side of the fuel-retaining standards. The combustion system further includes an air delivery system having a lower air tube supplying high and low velocity air and an upper air tube. The lower air tube is positioned proximate to a firebox floor, while the upper air tube is positioned within the secondary chamber. Automatic air setting mechanisms are provided so that proper air settings can be maintained during various phases of a fire. The combustion system further includes a loading door having openings and a bypass system preventing the loading door from being fully closed unless the bypass is in the completely closed position. The secondary combustion chamber includes at least fuel protecting baffles and a secondary combustion chamber ceiling which extends partially over the entire length of the secondary combustion chamber or includes openings. A catalyst mounting system which minimizes canning and masking and a radiant catalyst heating system are also provided.
摘要翻译： 燃烧系统包括通过限定延伸到二次燃烧室中的峡谷或空隙的燃料保持标准分为左侧和右侧的一级燃烧室。 主燃烧室的底板和燃料保持标准将燃烧的固体燃料引导到峡谷的下部，同时在燃料保持标准的任一侧保持非燃烧的固体燃料。 燃烧系统还包括一个空气输送系统，该系统具有供给高低空气的下部空气管和一个上部空气管。 下部空气管定位成靠近火炉底板，而上部空气管定位在次级室内。 提供自动空气调节机构，使得在各种各样的阶段可以保持适当的空气设定。 燃烧系统还包括具有开口的装载门和防止装载门完全关闭的旁路系统，除非旁路处于完全关闭位置。 二级燃烧室至少包括燃料保护挡板和部分地在二级燃烧室的整个长度上延伸或包括开口的二级燃烧室顶板。 还提供了最小化罐头和掩蔽的催化剂安装系统和辐射催化剂加热系统。
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公开(公告)号：US5499622A
公开(公告)日：1996-03-19
申请号：US375952
申请日：1995-01-20
申请人： Maurice G. Woods
发明人： Maurice G. Woods
CPC分类号： F28D21/0007 , F23G7/063 , F24B1/006 , F23G2207/101 , F23G2207/40 , F23J2213/10 , F23J2217/20
摘要： Process and system for the operation of a fireplace or the like in which combustion products including pollutant gases and entrained particulate materials are treated to substantially reduce pollutant levels. The combustion products are passed through a confined flue passageway, such as found in a chimney stack, which extends upwardly to the exterior of the dwelling house or other structure. The flow of combustion products is interrupted in a manner to cause the products to follow a tortuous path in which entrained particulates in the combustion products are separated so that they collect in a suitable disposal zone. The combustion products then pass into an afterburner section comprising a plurality of heating elements. The temperature of the combustion products is sensed below the afterburner section and above bank of heating elements. The heating elements are activated when the temperature at the lower location reaches a specified value and the combustion products are heated to a temperature sufficient to convert substantial quantities of carbon monoxide to carbon dioxide. When the temperature at the upper location reaches a specified upper value at least some of the heating elements are deenergized. A baffle system is interposed between the heating element bank and fireplace to deflect the flow of combustion products from a vertical flow path in a manner to extract particulate materials from the combustion products. The baffle system incorporates a primary deflecting member and a secondary deflecting member which extends downwardly from the primary deflecting member.
摘要翻译： 用于操作壁炉等的工艺和系统，其中处理包括污染气体和夹带的颗粒材料的燃烧产物以显着降低污染物水平。 燃烧产物通过限制的烟道通道，例如在烟囱堆中发现，其向上延伸到住宅或其他结构的外部。 燃烧产物的流动以使产品跟随曲折路径的方式中断，其中燃烧产物中夹带的颗粒被分离，使得它们收集在合适的处理区域中。 燃烧产物然后进入包括多个加热元件的加力燃烧器部分。 燃烧产物的温度在加热器部分和加热元件上方感测。 当较低位置处的温度达到特定值时，加热元件被激活，并且将燃烧产物加热到足以将大量一氧化碳转化为二氧化碳的温度。 当上部位置的温度达到规定的上限值时，至少一些加热元件被断电。 挡板系统插入在加热元件组和壁炉之间，以使燃烧产物的流动从垂直流动路径以从燃烧产物中提取颗粒材料的方式。 挡板系统包括从主偏转构件向下延伸的主偏转构件和次偏转构件。
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14.发明授权Catalytic unit for gas phase catalysis, more especially for use with wood- and other solid fuel-burning stoves 失效用于气相催化的催化单元，更特别适用于木柴和其他固体燃料燃烧炉
公开(公告)号：US4584177A
公开(公告)日：1986-04-22
申请号：US677339
申请日：1984-12-04
CPC分类号： F23G7/07 , B01D53/864 , F24B1/006
摘要： Flue gases containing crackable and combustible volatiles e.g. from a wood-burning stove are passed through a catalytic combustor having two spaced catalytic units each having small longitudinally extending catalytic flow passages. Air supplied into a chamber between the two units supports after-combustion of combustible volatiles in the downstream catalytic unit. Some pre-cracking and combustion takes place in the upstream catalytic unit, which serves as a gas collimator and disallows any flow of air from the intermediate chamber into the fire box of the stove, whereby combustion in the fire box can be closely controlled to increase production of combustible volatiles. Each unit may have flow passages which decrease in cross-sectional size and increase in length toward the central portion of the unit, thus encouraging uniformity of flow of the flue gases and of the catalytic reaction over the entire cross section of each unit. The units are surrounded by an air jacket into which air is supplied at one end, and the air is distributed uniformly around the periphery of the intermediate chamber. Each unit has a central bypass opening and a temperature responsive valve which closes the bypass opening when the catalytic unit reaches its threshold temperature of operation. A reflector, preferably with a curved reflective face, reflects radiant heat to the downstream fuel of the combustor, and an exterior heat exchange jacket transfers heat to the surroundings from the hot gases exiting from the combustor. A flame-arresting screen is spaced between the fire box and the combustor to prevent diffusion flames originating in the fire box from lapping on the catalytic flow passages.
摘要翻译： 含有可裂解和易燃挥发物的烟道气体 从燃烧燃烧的炉子通过具有两个间隔开的催化单元的催化燃烧器，每个催化单元具有小的纵向延伸的催化流动通道。 供应到两个单元之间的室中的空气支持可燃挥发物在下游催化单元中的后燃烧。 一些预裂化和燃烧发生在上游催化单元中，上游催化单元用作气体准直器，并且不允许空气从中间室流入火炉的火箱中，由此可以严密控制消防箱中的燃烧以增加 生产易燃挥发物。 每个单元可以具有流动通道，其横截面尺寸减小并且朝向单元的中心部分增加长度，从而促使烟道气和催化反应的流动在每个单元的整个横截面上均匀。 这些单元被一个空气套包围，空气在一端被供应到空气中，并且空气均匀地分布在中间室的周边。 每个单元具有中央旁路开口和温度响应阀，当催化单元达到其阈值操作温度时，其关闭旁路开口。 优选地具有弯曲反射面的反射器将辐射热反射到燃烧器的下游燃料，并且外部热交换套管将热量从从燃烧器排出的热气体传递到周围环境。 防火屏幕在火箱和燃烧室之间隔开，以防止源自火箱的扩散火焰在催化流动通道上研磨。
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公开(公告)号：US4466421A
公开(公告)日：1984-08-21
申请号：US554233
申请日：1983-11-22
申请人： Eddy H. Dorsch , Herbert Dorsch
发明人： Eddy H. Dorsch , Herbert Dorsch
摘要： An afterburner for a wood stove for use as a retrofit assembly comprises a rectangular housing having openings in the upper and lower surfaces provided with cylindrical collars for cooperation with the flue duct and with the opening in the top of the wood stove respectively. The openings are positioned at the rear of the housing so as to provide a forward section spaced from the openings. A catalytic combuster mounted in a cylindrical support is movable from a position directly above the opening in the bottom surface into the front section by a manually operable handle extending through the front face of the housing. A baffle mounted on the support and arranged at a shallow angle to the horizontal overlies the major part of the combuster so as to direct gases into the front section of the housing for heat exchange contact with the walls thereof.
摘要翻译： 用作改装组件的木炉的加力器包括：在上表面和下表面上具有开口的矩形壳体，其具有用于与烟道管道配合的圆柱形套环，并且分别与木炉顶部的开口相配合。 开口位于壳体的后部，以便提供与开口间隔开的前部。 安装在圆柱形支撑件中的催化燃烧器可通过手柄操作的手柄从壳体的前表面延伸，从底面开口正上方的位置移动到前部。 安装在支撑件上并且以与水平面成小角度布置的挡板覆盖燃烧器的主要部分，以便将气体引导到壳体的前部，以与其壁的热交换接触。
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公开(公告)号：US4373507A
公开(公告)日：1983-02-15
申请号：US195399
申请日：1980-10-09
摘要： A wood burning stove having a catalytic converter for achieving greatly increased combustion efficiency, said stove having damper means for insuring that all combustion gases from the primary combustion chamber pass through said converter before reaching the stove's exhaust duct when the damper is in one position, and manual control means for moving the damper to a second position wherein the combustion gases bypass said converter and pass directly to said exhaust duct, it being necessary to move said damper to its second position before the door of said stove can be opened. Said damper has a controlled leakage factor whereby if the converter becomes clogged when the damper is in its first position, combustion gases will be permitted to pass to said exhaust duct. In one operational mode, the stove may be used to burn coal.
摘要翻译： 具有用于实现大大提高的燃烧效率的催化转化器的燃木炉，所述炉具有阻尼装置，用于确保当所述阻尼器处于一个位置时，在到达所述炉排气管道之前，来自所述主燃烧室的所有燃烧气体通过所述转炉，以及 用于将阻尼器移动到第二位置的手动控制装置，其中燃烧气体绕过所述转换器并直接传递到所述排气管道，在所述炉子的门能够打开之前需要将所述阻尼器移动到其第二位置。 所述阻尼器具有受控的泄漏因子，由此如果当阻尼器处于其第一位置时转换器被堵塞，则允许燃烧气体通过到所述排气管道。 在一种操作模式中，炉子可以用于燃烧煤。
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公开(公告)号：US1054193A
公开(公告)日：1913-02-25
申请号：US1912696576
申请日：1912-05-11
申请人： WINCROFT STOVE WORKS
发明人： GENTHNER CHARLES M
CPC分类号： F24B1/006
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公开(公告)号：US778639A
公开(公告)日：1904-12-27
申请号：US1904213972
申请日：1904-06-24
申请人： JESSE M RUSSELL , DIMPSEY NELSON W
发明人： DIMPSEY NELSON W
CPC分类号： F24B1/006
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