QUENCH RING AND DIP TUBE ASSEMBLY

摘要

QUENCH RING AND DIP TUBE ASSEMBLY An assembly of a quench liquid distribution ring and dip tube with or without a draft tube for use in a hot effluent gas quench cooling zone containing a pool of quench liquid in the bottom in combination with a vertical cylindrical free-flow refractory lined reaction zone of a partial oxidation gas generator. The hot effluent gas from the reaction zone passes through a bottom central discharge outlet and passage and then through a coaxial vertical dip tube that extends down into a pool of quench liquid. A quench liquid distribution ring that includes an annular rectangular shaped bottom feed quench liquid distribution channel, surrounds the outside diameter of the dip tube at its upstream end. A quench ring face and cover is provided that comprises a vertical cylindrical shaped leg portion and a top horizontal flat ring plate portion that extends perpendicularly outward from the upstream end of the leg portion. The cylindrical shaped leg portion extends downward and overlaps the outside of the inner wall of said annular rectangular shaped quench liquid distribution channel thereby providing an annular shaped gap therebetween. The top horizontal flat ring plate portion provides a gas and liquid tight cover with the annular quench liquid distribution channel when the two parts are bolted to a floor flange connected to the support floor for the refractory that lines the reaction zone of the gas generator. A plurality of slot orifices pass through the inner wall of said annular distribution channel to provide free passage for the quench liquid between the distribution channel and the annular gap. The annular gap may be kept full of quench liquid and free from gas and vapor pockets, thereby avoiding poor heat transfer. The quench liquid is then evenly distributed over the inside surface of the dip tube.