Draft tube internal drainage fairing, draft tube and shell and tube type heat exchanger

• Main Authors: Zhang Xiuhong, Wang Xinting, Lan Yuehua, Chen Jin, Quan Difeng, Liu Zhichun, Li Quan, Liu Wei, Lyu Shengjie, Liu Guanghui
• Format: Patent
• Language: Chinese; English
• Published: 24.08.2016
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

The utility model relates to a shell and tube type heat exchanger technical field, concretely relates to draft tube internal drainage fairing, draft tube and shell and tube type heat exchanger, wherein drainage fairing along the axial setting of draft tube inner shell, the drainage fairing is that the upper end of two arcs is connected by two arcs and two closed?structure that the curb plates concatenation formed, the lower extreme of two arcs is fixed in the draft tube inner shell respectively, two both sides ends that the arc is relative respectively with the curb plate fixed connection that corresponds, all the side bend is bent inwards for the arcwall face of two arcs. Compared with the prior art, the utility model discloses can eliminate fluidic stagnant area in the draft tube, reduce the flow resistance, energy -conserving effectual to have simple structure, make convenient advantage, but the wide application is arrived among the heat exchanger of trades such as oil, chemical industry and electric power