Packing seal box of screw pump surface drive and sealed polished rod for steam -assisted recovery

The utility model relates to a packing seal box of screw pump surface drive and sealed polished rod for steam -assisted recovery, the packing seal box includes the upper and lower packing chamber pipe that the detachable fixing is in the same place, the inner chamber that is used for supplying the polished rod to pass through of two packing chambeies pipe corresponds the intercommunication, fixed pressure equipment has the low temperature packing in going up the lumen of managing in the packing chamber, fixed pressure equipment has the high temperature packing in the lumen that managed in the packing chamber down, down the coaxial screw assembly in lumen bottom of packing chamber pipe have be used for upwards ejecting in order to carry out the fiber tube that the packing was changed with the high temperature packing, the top of fiber tube have be used for with roof pressure face on the high temperature packing roof pressure complex, the fiber tube has the confession the through -hole that the polished rod pas