Underwater ball valve load simulation device and underwater ball valve execution mechanism test method

Abstract

The invention provides an underwater ball valve load simulation device and an underwater ball valve execution mechanism test method. The underwater ball valve load simulation device comprises a sealedshell, a hydraulic motor device, a speed reducer and a spline transmission shaft, wherein the sealed shell is internally provided with a pressure-resistant sealed chamber, and the sealed shell is provided with a shaft hole; the hydraulic motor device is arranged in the pressure-resistant sealed chamber and fixed in the shell; the hydraulic motor device is provided with a hydraulic motor with a brake, and the hydraulic motor is configured to rotate forward and backward under the action of hydraulic oil; the speed reducer is connected to an output shaft of the hydraulic motor; the spline transmission shaft is connected to an output shaft of the speed reducer and extends out of the shaft hole; and the spline transmission shaft is provided with a torque sensor and an angular displacement sensor. A shell of the underwater ball valve execution mechanism is connected to the sealed shell, and a transmission shaft of the underwater ball valve execution mechanism is connected to the spline transmission shaft. The underwater ball valve load simulation device can simulate the load of a ball valve during the movement process, is compact in structure and small in volume, can simulate on-off characteristics of ball valves of various specifications and meets test requirements of an underwater ball valve execution mechanism.

Description

technical field [0001] The invention relates to the field of deep sea oil and gas field development equipment, in particular to an underwater ball valve load simulation device and an underwater ball valve actuator test method. Background technique [0002] With the rapid decline of onshore oil resources, offshore oil and gas development has become a hot spot for energy development in countries all over the world. As one of the basic components of underwater oil production facilities, the demand for underwater valves will continue to expand. The important driving device of the lower valve is installed on the seabed following the valve body. With the development and exploitation of oil and gas in my country's Bohai Sea and South China Sea and the world's exploration of deep-sea energy, the market demand for underwater valves and actuators is also increasing, and their technical requirements are also increasing. Therefore, carrying out research on the design, manufacture and r...

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Problems solved by technology

Therefore, the corresponding ball valve actuators are also affected by different interfaces, performances and functions of the ball valves. Various performance tests, and the large-diameter deep-water ball valve is bulky, has certain assembly difficulties, and is limited by the conditions of the test site

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