Electromagnetic balancing mechanism of fluid control device

• Main Authors: YANG YUNDONG, XU CHENGSONG, TAN XIAOZHI
• Format: Patent
• Language: English
• Published: 29.10.2014
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model discloses an electromagnetic balancing mechanism of a fluid control device. The electromagnetic balancing mechanism of the fluid control device comprises a magnetic yoke, a permanent-magnet ring and a coil, wherein the permanent-magnet ring is fixed into a containing cavity, the coil is arranged between the permanent-magnet ring and the magnetic yoke in a wound mode, a force guiding block is connected to the horizontal part of the coil, a protruding nozzle is arranged at the end, close to the force guiding block, of the magnetic yoke, a leaf spring is fixed to the protruding nozzle, the lower end of the inner side of the leaf spring is connected with the outer mouth of the force guiding block, and the outer side of the leaf spring is connected with a counter balance. According to the electromagnetic balancing mechanism of the fluid control device, an air cock can be adjusted and controlled through a valve positioner by changing the electrified condition of the coil or changing the current intensity, the adjustment precision is high, and the response speed is high.