Multi-functional special oiling device for deep-sea hydraulic system

Abstract

The invention discloses a multi-functional special oiling device for a deep-sea hydraulic system. An electric heater and a multi-point liquid-level control relay are installed inside a vacuum tank, an electric contact pressure gauge, an electric contact vacuum gauge, a liquid level gauge, an electric contact thermometer and a distribution box are installed outside the tank, an oil inlet of the vacuum tank is connected with an external oil box through a first low-pressure ball valve and an oiling refined oil filter, an oil outlet of the vacuum tank is connected with an oil inlet of a hydraulic system to be oiled through a second low-pressure ball valve and a first quick connector, a first through hole of the vacuum tank is connected with a second quick connector through a throttle, a first channel of a three-way connector is connected with a second through hole of the vacuum tank through a third low-pressure ball valve, a second channel of the three-way connector is connected with a rotary vane type vacuum pump through a fourth low-pressure ball valve, and a third channel of the three-way connector is connected with an oil outlet of the hydraulic system to be oiled through a third quick connector and a sixth low-pressure ball valve. By the aid of the device, high-purity oil products of low gas content, low impurity and low water content are provided for various deep-sea oil devices.

Description

Technical field [0001] The invention relates to a device for injecting oil into a deep-sea hydraulic system, which has the functions of oil injection, filtration, degassing, dehydration, etc., and is especially suitable for deep-sea hydraulic systems with high quality requirements. Background technique [0002] As the development of marine resources continues to expand, the demand for deep-sea equipment continues to increase. The important and key components of deep-sea equipment often adopt the structure of hydraulic oil with external pressure compensator to realize pressure compensation. In the ocean, as the depth of the dive increases, the pressure around the deep-sea equipment will increase, and the pressure compensator of the hydraulic system will change its volume to ensure the internal and external pressure balance. As the pressure increases, the volume of hydraulic oil will decrease. If the volume decrease of hydraulic oil is too large, a large-capacity pressure compensa...

AI Technical Summary

Problems solved by technology

If the hydraulic oil is used in the deep sea, the hydraulic oil containing a certain amount of air will have a large volume change under the action of external pressure, which will affect the use of deep-sea equipment in the deep-sea high-pressure environment.

[0005] When solid particles enter the hydraulic pump or hydraulic valve, the hydraulic pump or hydraulic valve may be stuck, or the orifice controlling the hydraulic valve may be blocked, causing sudden failure

Sometimes particles or pollutants hinder the return of the hydraulic valve, so that the hydraulic valve cannot be completely closed, resulting in the hydraulic system not working properly, so the solid particles in the hydraulic oil must be strictly controlled

[0006] Chinese patent CN 101328911A discloses a fully enclosed hydraulic oil injection device. This structure has the characteristics of complete isolation from the external environment, avoids the use of gas supplementary oil, can reduce the gas content in the supplementary oil, and reduce the aging and deterioration of insulating oil. Although this patent The fully enclosed structure design ensures that no air will enter during oil filling, but it cannot remove the residual air, water and solid particles in the hydraulic oil

Chinese patent CN 1975183A discloses a pressure oil tank that removes gas from hydraulic oil. This invention can effectively remove gas from hydraulic oil. The inert gas is used to fill the ring to speed up the discharge of air bubbles adsorbed on the wall of the hydraulic oil tank. The application device can discharge tiny air bubbles in the hydraulic oil. When the pump is working, the pressure in the pressure oil tank is adapted to the atmospheric pressure to prevent the pump from sucking air. Although this patent removes the gas in the hydraulic oil very well, its function is relatively single. limited to removal of air

Chinese patent CN1171976 discloses a multi-functional vacuum oil filter, which has high heating efficiency, can automatically control oil temperature, pressure, and oil level in the vacuum tank, and can monitor the pressure value of the oil in real time. Multi-functional purification, but after the oil is filtered, it is inevitably exposed to the open environment before it is injected into the hydraulic system, causing the hydraulic oil to be mixed with air and water

The various existing oil injection methods cannot realize oil injection, filtration, degassing, dehydration and other functions at the same time, and it is difficult to meet the requirements of deep sea hydraulic systems

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