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A technology of actuators and underwater gate valves, which is applied in the direction of valve details, valve devices, mechanical equipment, etc., to achieve the effect of reasonable overall layout, guaranteed usability, and guaranteed safety
Active Publication Date: 2016-04-13
CHINA NAT OFFSHORE OIL CORP +1
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As the water depth increases and the pressure increases, the requirements for accumulators and umbilical cables in the underwater production system will be higher to ensure the necessary response time and safe operation coefficient; in addition, environmental regulations strictly require zero discharge, so water The construction of the electro-hydraulic control of the lower production system faces challenges
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[0014] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0015] Such as Figure 1~3 As shown, the present invention includes a housing 10 , a main drive system 20 , a redundant drive system 30 , a rotational movement conversion system 40 and an underwater vehicle operating system 50 .
[0016] Two partitions 11, 12 are arranged at intervals near the middle of the casing 10, and the two partitions 11, 12 divide the inner space of the casing 10 into an upper chamber, a middle layer and a lower chamber.
[0017] Such as figure 2 As shown, the active drive system 20 includes a servo motor 21 arranged longitudinally in the upper chamber along the casing 10, the output end of the servo motor 21 is connected to a reducer 22, and the output end of the reducer 22 passes through an overrunning clutch 23, an The electromagnetic clutch 24 is connected to a gear shaft 25 .
[0018] The redundant drive system 30 incl...
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Abstract
The invention relates to an underwater valve actuating mechanism comprising a housing, a drive system, a redundant drive system, a rotary movement converting system and an underwater robot operating system. The drive system comprises a servo motor, a reducer, an overrunning clutch, an electromagnetic clutch and a gear shaft; the redundant drive system comprises another servo motor, another reducer, another overrunning clutch, another electromagnetic clutch and another gear shaft; the rotary movement converting system comprises two small gear, a large gear, a screw shaft, a nut, a hook cylinder, a joint and a spring; the underwater robot operating system comprises a cylindrical support, a trapezoidal screw, a trapezoidal nut, an underwater robot joint, an underwater robot interface, a pushing and pressing plate and a plurality of pushing and pulling rods. The underwater valve actuating mechanism can be controlled all electrically, higher safety during operation in deep-water environment is guaranteed, the functions of urgent reply, redundant drive design, valve switching state display, inner and outer pressure balance and underwater robot fault operation are provided, and the high application value is provided.
Description
technical field [0001] The invention relates to a gate valve actuator, in particular to an underwater gate valve actuator with compact structure and high safety. Background technique [0002] The submarine environment is one of the harshest and most corrosive environments in the world. Therefore, when designing underwater equipment, it is necessary to consider the availability, failure safety, underwater monitoring and pressure protection of equipment in accordance with the established standards. . Generally, underwater equipment is guaranteed by redundant design, safety is guaranteed by emergency recovery function, and final failure operation is carried out by underwater robot (ROV). [0003] At present, in the underwater production system, the most typical one is electro-hydraulic compound control. As the water depth increases and the pressure increases, the requirements for accumulators and umbilical cables in underwater production systems will be higher to ensure the n...
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