CN112441198A

CN112441198A - Oil tank for adjusting buoyancy of deep sea exploration submersible

Info

Publication number: CN112441198A
Application number: CN201910736846.4A
Authority: CN
Inventors: 王树新; 王延辉; 孙安琪; 杨绍琼; 张连洪; 张宏伟; 刘玉红
Original assignee: Qingdao National Laboratory for Marine Science and Technology Development Center; Tianjin University Marine Technology Research Institute
Current assignee: Qingdao National Laboratory for Marine Science and Technology Development Center; Tianjin University Marine Technology Research Institute
Priority date: 2019-08-10
Filing date: 2019-08-10
Publication date: 2021-03-05

Abstract

An oil tank for adjusting the buoyancy of a deep sea detection submersible comprises an upper end cover, a lower end cover, a connecting ring, a shell, a turnover type diaphragm, a guide body, an inner pressure plate, a spring and an oil displacement sensor; the upper end cover is fixedly connected with the shell through a connecting ring through threads; the upper end cover is provided with an exhaust port, an oil discharge port and an oil return port; the foldable diaphragm, the upper end cover and the guide body form a sealed cavity together; the center of the inner pressure plate is provided with an extension end with threads which passes through the center holes of the diaphragm and the guide body, and the diaphragm, the guide body and the guide body move along the same axis through a locking nut; the bottom of the spring is placed in a lower end cover groove, the lower end cover is connected with the shell through threads, and the oil displacement sensor is fixed on the lower end cover through a bolt. This oil tank not only has the function that is used for the oily medium of regulation for buoyancy system storage, can also guarantee that buoyancy system adjusts the process of buoyancy and return, go on smoothly of oil extraction, transmits the buoyancy regulating variable in real time simultaneously and equips the master control to realize accurate buoyancy and adjust.

Description

Oil tank for adjusting buoyancy of deep sea exploration submersible

Technical Field

The invention belongs to the field of deep sea observation and detection, and particularly relates to an oil tank for adjusting the buoyancy of a deep sea detection submersible vehicle.

Background

The underwater observation equipment such as an underwater glider, an Argo buoy and the like adjusts buoyancy change by changing the volume of the underwater observation equipment, realizes underwater lifting by changing the buoyancy of the underwater observation equipment, has the advantages of long range, low energy consumption, small volume, low noise and the like, can realize long-time-sequence and large-range continuous observation, and is well applied to the aspects of marine environment monitoring, seabed detection and the like.

The existing oil bag oil tank is of a fixed structure, is limited by the integral size of equipment, and has limited volume, so that the oil storage capacity is limited, the buoyancy regulating quantity is limited, and the application in the deep sea detection field is difficult.

The marine environment is extremely complicated, an oil tank capable of feeding back the oil quantity in real time is needed, the accurate buoyancy regulating quantity is guaranteed, and whether the detection equipment can reach the fixed working depth and can float upwards safely for recovery is related to.

Disclosure of Invention

Aiming at the problems in the prior art, the oil tank for buoyancy adjustment of the deep sea detection submersible has the function of storing oil media for adjustment for a buoyancy system, can ensure that the process of buoyancy adjustment of the buoyancy system can be smoothly carried out, oil can be discharged, and meanwhile, the buoyancy adjustment quantity is transmitted to an equipment main control in real time so as to realize accurate buoyancy adjustment.

An oil tank for adjusting the buoyancy of a deep sea detection submersible comprises an upper end cover, a lower end cover, a connecting ring, a shell, a turnover type diaphragm, a guide body, an inner pressure plate, a spring and an oil displacement sensor; the upper end cover is fixedly connected with the shell through a connecting ring through threads; the upper end cover is provided with an exhaust port which is sealed by a plug; the oil drain port and the oil return port on the upper end cover are connected with a pipeline through a connecting piece with NPT threads; the foldable diaphragm, the upper end cover and the guide body form a sealed cavity together; the center of the inner pressure plate is provided with an extension end with threads which penetrates through the center holes of the diaphragm and the guide body, and the diaphragm is fixed between the inner pressure plate and the guide body through a locking nut so as to move along the same axis; the bottom of the spring is placed in a lower end cover groove, the upper end of the spring is free, the lower end cover is connected with the shell through threads, the oil displacement sensor is fixed on the lower end cover through a bolt, and a stay wire on the oil displacement sensor is connected with the guide body.

When oil is discharged, oil in a sealing cavity in the oil tank is conveyed to the buoyancy system from an oil discharge port on the upper end cover through a pump, the diaphragm is folded and contracted, the spring recovers to provide back pressure, the volume of the sealing cavity is reduced, and the guide body pulls a pull wire of the oil displacement sensor to move upwards along the shell; during oil return, oil flows back to the oil tank through the electromagnetic valve and the oil return port, the diaphragm is stretched, the volume of the sealed cavity is increased, the guide body pulls the pull wire of the oil displacement sensor to move downwards along the shell, and the spring is compressed. The whole oil return device comprises an upper end cover, a lower end cover, a connecting ring, a shell and a shell of the oil displacement sensor which are fixed.

An oil tank for buoyancy adjustment of a deep sea exploration submersible vehicle can stably and efficiently supply oil and collect return oil for an equipped buoyancy system, and the buoyancy adjustment function is guaranteed; simple structure has constituted a whole, is convenient for install buoyancy system and take off from buoyancy system and maintain: the oil can be carried by 1.6L, so that the underwater detection submersible vehicle can submerge to the depth of kilometer level, and the underwater detection submersible vehicle has the capability of being applied to deep sea detection. In the oil returning and discharging process, the elastic force of the spring presses the guide body, so that the membrane is prevented from being folded, the oil returning and discharging blockage is avoided, and the buoyancy adjusting efficiency can be ensured; the oil displacement sensor of the oil tank can transmit the oil quantity numerical value of the oil tank to the master control of the buoyancy system in real time, so that the buoyancy adjusting process is accurate.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is an isometric view of the present invention.

In the figure: 1. an upper end cover; 2. a connecting ring; 3. a housing; 4. the folding type diaphragm is turned over; 5. a lower end cover; 6. an oil displacement sensor; 7. a pull wire; 8. a spring; 9. a guide body; 10. an inner pressure plate; 11. an exhaust port; 12. an oil discharge port; 13. and an oil return port.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the oil tank includes an upper end cap 1, a lower end cap 5, a housing 3, a foldable diaphragm 4, a guide body 9, a spring 8, and an oil displacement sensor 6. The folding diaphragm 4, the upper end cover 1 and the guide body 9 form a sealed cavity together to be used as a volume variable part of the buoyancy driving system. Under the action of the elastic force of the spring 8, the guide body 9 pulls the turnover type diaphragm 4 to move along the direction vertical to the section of the oil tank, so that oil can be smoothly discharged. The oil displacement sensor 6 can transmit the oil quantity numerical value of the oil tank to the main control of the buoyancy system in real time so as to control the on and off of the pump or the valve. And closed-loop control is formed, so that the buoyancy adjustment amount of the buoyancy system is accurate. As shown in fig. 2, an oil discharge port 12 and an oil return port 13 are provided on the upper end cover 1 of the oil tank, and are respectively connected with an oil return branch and an oil discharge branch of the buoyancy system. The pressure of the oil in the oil return process is different from that in the oil discharge process, so that the oil return process is distinguished, and meanwhile, a filter is arranged in an oil discharge branch. The independent exhaust port can exhaust residual gas in the oil tank after oil filling, so that oil entering the buoyancy system is clean, and the accuracy of buoyancy adjustment is also ensured.

Claims

1. The utility model provides an oil tank that is used for deep sea to survey latent ware buoyancy and adjusts which characterized in that: comprises an upper end cover, a lower end cover, a connecting ring, a shell, a turnover diaphragm, a guide body, an inner pressure plate, a spring and an oil displacement sensor; the upper end cover is fixedly connected with the shell through a connecting ring through threads; the upper end cover is provided with an exhaust port which is sealed by a plug; the oil drain port and the oil return port on the upper end cover are connected with a pipeline through a connecting piece with NPT threads; the foldable diaphragm, the upper end cover and the guide body form a sealed cavity together; the center of the inner pressure plate is provided with an extension end with threads which penetrates through the center holes of the diaphragm and the guide body, and the diaphragm is fixed between the inner pressure plate and the guide body through a locking nut so as to move along the same axis; the bottom of the spring is placed in a lower end cover groove, the upper end of the spring is free, the lower end cover is connected with the shell through threads, the oil displacement sensor is fixed on the lower end cover through a bolt, and a stay wire on the oil displacement sensor is connected with the guide body.

2. The oil tank for buoyancy adjustment of the deep sea exploration submersible as claimed in claim 1, wherein: when oil is discharged, oil in a sealing cavity in the oil tank is conveyed to the buoyancy system from an oil discharge port on the upper end cover through a pump, the diaphragm is folded and contracted, the spring recovers to provide back pressure, the volume of the sealing cavity is reduced, and the guide body pulls a pull wire of the oil displacement sensor to move upwards along the shell; during oil return, oil flows back to the oil tank through the electromagnetic valve and the oil return port, the diaphragm is stretched, the volume of the sealed cavity is increased, the guide body pulls a pull wire of the oil displacement sensor to move downwards along the shell, and the spring is compressed; the whole oil return device comprises an upper end cover, a lower end cover, a connecting ring, a shell and a shell of the oil displacement sensor which are fixed.