节流阀中的粉末和沉积物控制

• Format: Patent
• Language: Chinese
• Published: 16.02.2018
• Subjects: ACTUATING-FLOATS; BLASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLEANING; CLEANING IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COCKS; DEVICES FOR VENTING OR AERATING; DIFFUSION TREATMENT OF METALLIC MATERIAL; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREVENTION OF FOULING IN GENERAL; SEPARATION; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TAPS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VALVES; WEAPONS

节流阀(10)中的粉末和沉积物控制包括阀体(32)中的形成环形集气室(46、146)的喷嘴插件(50、150)，及用于以与该阀体(32)的内壁表面(31)相邻的方式喷射清洁气体的环形流(54、154)的环形喷嘴(52、152)，用于将粉末和沉积物从该阀体(32)中的表面及从该节流阀(10)的关闭构件(14)清洁出去。该清洁气体的环形流(54、154)可以是间歇的、周期性的或呈脉冲喷发的形式或处于稳态流速，以将粘附到该节流阀(10)的内表面的粉末颗粒剥离掉，以蚀刻或反应性地清洁固态沉积物，或以防止或减少粉末颗粒或固态沉积物在该节流阀(10)中的累积。 Powder and deposition control in a throttle valve includes nozzle inserts in the valve body that form annular plenums and annular nozzles for injecting annular flows of cleaning gas adjacent to the inside wall surface of the valve body for cleaning powders and depositions off surfaces in the valve body and off the closure member of the throttle valve. The annular flows of cleaning gas can be in intermittent, periodic, or in pulsed bursts or at a steady-state flow rates to dislodge powder particles stuck to the inside surface of the throttle valve, to etch or reactively clean solid deposits, or to prevent or minimize build-up of powder particles or solid deposits in the throttle valve.