Novel tube bank and removable sealing connecting structure that trades of tube sheet
The utility model relates to a sealing connecting structure, concretely relates to novel tube bank and removable sealing connecting structure that trades of tube sheet, including tube sheet body and heat exchange tube body, be equipped with the screw tube hole on the tube sheet body, screwed pipe no...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to a sealing connecting structure, concretely relates to novel tube bank and removable sealing connecting structure that trades of tube sheet, including tube sheet body and heat exchange tube body, be equipped with the screw tube hole on the tube sheet body, screwed pipe nose end portion is equipped with the wedge face, the screw tube hole through the screw with compress tightly the nut and be connected, compress tightly the nut right side and be equipped with the backing ring, the backing ring right side is equipped with O type sealing washer, compresses tightly four opening that spiral shell cap terminal portion was equipped with the circumference equipartition, the wedge face is 45 degrees to 60 degrees with the acute angle contained angle of horizontal plane, the quantity of O type sealing washer is 1 to 3, and its preparation material is the polytetrafluoroethylene material, compressing tightly the nut and being the cover tubular construction, its internal diameter is the same w |
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