Wave compensation system for marine exploration device

Abstract

The invention is applied to a marine exploration device, and discloses a wave compensation system for the marine exploration device. Two outlets of a main pump (3) are connected with inlets of a first selector valve group (4) and a second selector valve group (5) respectively. An outlet of the first selector valve group (4) is connected with a P port of a flush valve group (6) and an oil port of a hydraulic winch (8). An outlet of the second selector valve group (5) is connected with a T port of the flush valve group (6) and an inlet of a balance valve (7). An inlet of an overflow valve (17) is connected with an oil filling port of a compensation oil cylinder (13) and an outlet of a pilot operated check valve (18). An outlet of the compensation oil cylinder (13) is connected with an energy accumulator (12), a nitrogen gas cylinder (11), an inflation ball valve (9) and a pressure gauge (10). A P port of a reversing valve (19) is connected with an outlet of a check valve (20). A T port of the reversing valve (19) is connected with an oil tank (1). A ball valve (2) is arranged between the main pump (3) and the oil tank (1), and a ball valve (2) is also arranged between an auxiliary pump (21) and the oil tank (1). The hydraulic winch (8) is connected with the exploration device (16). The volume of the oil tank is greatly reduced; and passive compensation and active compensation are combined, so that the wave compensation system is low in power consumption and high in compensation accuracy.

Description

technical field [0001] The invention is suitable for marine survey devices, especially for a landing and wave compensation system for survey operation devices in sea areas with a water depth of 1500m-3000m. Background technique [0002] At present, the wave compensation systems used in offshore operations are mainly divided into passive compensation and active compensation according to the power supply. The compensation power of the passive heave compensation system comes from the heave of the ship. When the ship heave, it relies on the lifting force of the waves and the gravity of the ship itself to compress and release the compressed air in the accumulator, thereby realizing heave compensation. This type of heave compensation system consumes almost no power, so it is widely used. But its biggest disadvantage is that the compensation performance is unstable and the hysteresis is relatively large. The compensation work of the active heave compensation system relies on the ...

AI Technical Summary

Problems solved by technology

This type of compensation system can adopt feedback control, has strong anti-interference ability, good adaptability, high compensation accuracy and stable compensation performance, but consumes a lot of power, so it is only suitable for low-power occasions

[0003] Marine survey equipment is a relatively special type of offshore operation equipment. Similarly, purely relying on passive compensation cannot meet the power needs, and relying entirely on active compensation consumes too much energy. In today's pursuit of energy conservation, it is hoped that there will be a more scientific and reasonable compensation. System comes out

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