Underwater construction device boost compensator

Abstract

The invention relates to the field of engineering machinery, and particularly discloses an underwater construction device boost compensator. The compensator comprises a sensing cavity, a middle cavityand an output cavity, wherein the sensing cavity can be used for sensing external pressure and changing the volume of the sensing cavity, the middle cavity is connected to the sensing cavity and forms a first closed space with the sensing cavity, and the output cavity is separated from the middle cavity through a separation piece, and forms a second closed space independently. According to the compensator, environment pressure is sensed through the sensing cavity, and transmitted to a working device through the middle cavity and the output cavity, and the compensator can adapt to pressure changes in a deepwater operation environment and prevent slurry from polluting engineering equipment.

Description

technical field [0001] The invention belongs to the field of construction machinery, and in particular relates to a pressurization compensator for underwater construction equipment. Background technique [0002] At present, the construction equipment in the underwater environment, taking the double-wheel milling machine as an example, the typical construction depth is 20-150 meters underground. As the depth of the construction machinery operation area increases, the water pressure continues to increase, and the impact of impurities such as mud on the sealing of the equipment is also more serious. At this time, not only the internal pressure of the working device and the external water pressure are required to balance each other, but also the key structure needs to be balanced. The pressure in the pump is slightly higher than the ambient pressure (0.5-2bar), so as to ensure the normal operation of the construction machinery and prevent the external mud from invading and pollu...

AI Technical Summary

Problems solved by technology

This pressure compensator can sense external mud pressure, but its open piston or spring chamber makes the mud directly contact with the booster device, which increases the movement friction of the piston or spring chamber

In addition, once the seal of this pressure compensator fails, the mud will directly enter the pressure output end of the pressure compensator, causing damage to the working equipment

Images