Device for testing characteristic parameters of fluid pressure film
The invention relates to a device for testing characteristic parameters of a fluid pressure film. The device is used for testing characteristic parameters of the fluid pressure film between two sealing end faces in a fluid end face dynamic pressure mechanical sealing device. A pneumatic control syst...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to a device for testing characteristic parameters of a fluid pressure film. The device is used for testing characteristic parameters of the fluid pressure film between two sealing end faces in a fluid end face dynamic pressure mechanical sealing device. A pneumatic control system of a gas compression spring is designed, a pilot-operated type pressure regulating valve and a two-position three-way electromagnetic control high-speed switch valve are cooperatively matched, the contact load between a sealing moving ring and a sealing static ring is accurately controlled through the gas compression spring, the testing efficiency and precision are improved, automatic control is easy to achieve, the structure of the frequency converter is designed; current input into a permanent magnet synchronous motor is controlled through a frequency converter, and working parameters of the frequency converter are monitored, recorded and controlled through the computer, so that continuous change of the rotati |
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