초록 ▼

A rotary valve thermal oxidizer including an interfacial seal disposed between rotating and fixed valve portions to prevent the mixing of treated and untreated gas streams. In a preferred embodiment, the valve sealing device includes a flowable sealing material contained within a receptacle, and con

A rotary valve thermal oxidizer including an interfacial seal disposed between rotating and fixed valve portions to prevent the mixing of treated and untreated gas streams. In a preferred embodiment, the valve sealing device includes a flowable sealing material contained within a receptacle, and contacted by a partition nested within the receptacle. Other sealing devices, as well as purge and/or sealing gases, may be employed to prevent leakage, while avoiding the use of machined parts.

대표청구항 ▼

[ We claim:] [1.] A regenerative thermal oxidizer, comprising:a combustion chamber;a heat exchanger having a plurality of heat exchanging segments communicating with the combustion chamber;a gas stream distribution assembly including a fixed plenum having an untreated gas stream inlet and a treated

[ We claim:] [1.] A regenerative thermal oxidizer, comprising:a combustion chamber;a heat exchanger having a plurality of heat exchanging segments communicating with the combustion chamber;a gas stream distribution assembly including a fixed plenum having an untreated gas stream inlet and a treated gas stream outlet, and a rotating plenum disposed between the fixed plenum and the heat exchanger;the rotating plenum permitting the conveyance of the untreated gas stream from the inlet to selective heat exchanger segments, and also permitting the conveyance of the treated gas stream from other selective heat exchanger segments to the outlet; anda seal disposed at an interface between the fixed and rotating plenums to reduce mixing of the treated and untreated gases, the seal comprising at least one annular receptacle containing a sealing material and a partition nested within the receptacle and engaging the sealing material.