[특허]Counterflow catalytic device

Counterflow catalytic device 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01N-003/10
출원번호	US-0011290 (1993-01-29)
발명자 / 주소	Cleary James M. (P.O. Box 541 Falmouth MA 02540)
인용정보	피인용 횟수 : 58 인용 특허 : 0

초록 ▼

A catalytic oxidizer having a combined central catalyst chamber and a spiral heat exchanger for treatment of air hydrocarbon vapor mixture including an outer shell of circular cross section having a tangentially directed longitudinal inlet aperture, a parallel exhaust aperture, an end cover plate and having a catalytic chamber centrally and coaxially positioned in the outer shell including an inlet port and an outlet port, the catalytic chamber including an upstream plenum, a catalyst core member and a downstream plenum, having perforated partitions for separating the catalyst core member from the inlet plenum and the exhaust plenum, and a coaxial spiral plate heat exchanger surrounding the catalytic chamber including a spiral inlet passage formed by coiled plates connected at one end to the inlet aperture and at the other end to an outlet associated with the inlet plenum defining a first heat exchange region, the coiled plates being spaced apart to create an intermediate spiral exhaust passage, the heat exchanger being sealed at opposite ends defining a second heat exchange region; and including a by-pass device for detecting and venting excess pressure in the catalyst chamber; wherein inlet flow passes through the spiral inlet passage inwardly and an opposed exhaust flow passes outwardly in the adjacent spiral exhaust passage, the exhaust, being heated by catalytic combustion in the core, heats the inlet flow.

대표청구항 ▼

A compact catalytic oxidizer having a transverse, two dimensional flow path for treatment of vapor mixture comprising: a) shell means for enclosing a central volume of generally circular cross-section having a longitudinal axis and a wall of generally cylindrical configuration, including an inlet header and an exhaust header; b) a combined catalyst chamber and spiral heat exchanger integrally connected and coaxially positioned within the shell means, also of cylindrical configuration, for providing a continuous transverse flow path from the inlet header to the exhaust header having a longitudinal and transverse dimension for two dimensional flow of vapor comprising: i) spiral heat exchanger means for providing counter-flow heating of vapor comprising a pair of spaced spiral plates forming therebetween a first spiral flow passage having an external end and an internal end defining a transverse inlet spiral flow path and a second spiral flow passage having an internal end and an external end defining a transverse exhaust spiral flow path; and ii) a catalyst chamber centrally positioned along the longitudinal axis of the shell means having permeable partition means for dividing the catalyst chamber into three zones comprising an inlet zone comprising an inlet plenum having an inlet aperture, a central core zone for containing a catalyst means, and an exhaust zone comprising an exhaust plenum having an exhaust aperture; wherein the inlet spiral flow path of the heat exchanger is connected to the inlet plenum defining a first heat exchange region, and the transverse spiral exhaust flow path is connected to the exhaust plenum and is positioned adjacent to the inlet spiral flow path defining a second heat exchange region and said inlet aperture and exhaust aperture are positioned on opposite sides of the catalyst chamber for providing transverse two dimensional flow of hydrocarbon vapor previously heated in the spiral heat exchanger with flameless combustion of the vapor introduced therein and; c) control means for controlling the flameless combustion reaction and preventing explosive combustion comprising means for controlling temperature of the catalytic oxidizer comprising sensing means for sensing the temperature in the catalyst chamber; bypass means associated with the sensing means for automatically connecting the exhaust plenum with a relief means to moderate the temperature of the catalyst chamber; heater means connected to the sensing means for controlling the temperature of the vapor mixture entering the catalyst chamber; and pressure relief means connected to the bypass means for relieving over pressure in the catalytic oxidizer configured to move between a closed position to an open relieving position, in response to excess pressure.

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A	생활필수품
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