CN212149195U

CN212149195U - Oil tank protection device used in deep sea environment

Info

Publication number: CN212149195U
Application number: CN202020750662.1U
Authority: CN
Inventors: 李红霞; 曹冬美
Original assignee: Wuxi Institute of Technology
Current assignee: Wuxi Institute of Technology
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-12-15
Anticipated expiration: 2030-05-08

Abstract

The utility model relates to an oil tank protection device for deep sea environment is under, comprising an oil tank, oil tank upper portion is provided with an export, and the check valve is installed through first combination packing ring in the exit, the exit of check valve is through second combination packing ring installation adapter, the cross-section right angle type structure of adapter, it has the perforating hole that communicates with the check valve to open in the middle of the right-angle portion of adapter, it has pagoda joint mounting hole to open in the middle of the other right-angle portion of adapter, pagoda joint mounting hole is perpendicular and communicate with horizontally perforating hole, pagoda joint mounting hole passes through O type circle installation pagoda and connects, the externally mounted compensation oil pipe that pagoda connects, compensation oil pipe and deep sea water environment are connected. Adopt switching equipment, restrain inside external environment's water got into the check valve to the protection oil tank has improved the use reliability greatly.

Description

Oil tank protection device used in deep sea environment

Technical Field

The utility model belongs to the technical field of the marine auxiliary assembly technique and specifically relates to an oil tank protection device for marine equipment underwater operation instrument.

Background

Conventional check valves typically use a spring as a means for returning the valve element, and when the pressure at the upstream end of the check valve is greater than the spring opening pressure, the spring will urge the valve element to move, opening the check valve, and releasing the pressure or material at the upstream end of the check valve. With the pressure release, the upstream end pressure of the one-way valve is gradually reduced, the spring is gradually reset, and finally, after the pressures at the two ends of the one-way valve are balanced, the one-way valve is completely closed.

Compared with the opening process, the closing of the one-way valve is a slower process, so that when the one-way valve is applied to a deep sea water environment, in the closing process of the one-way valve, outside water can reversely enter the one-way valve and further enter upstream equipment of the one-way valve, so that the equipment is corroded and damaged, particularly, the oil tank is greatly influenced, and the one-way valve cannot have a reverse stopping function.

SUMMERY OF THE UTILITY MODEL

The applicant aims at the defects in the prior art and provides an oil tank protection device used in a deep sea environment, so that water in the external environment is prevented from entering the inside of a one-way valve by adopting switching equipment, the oil tank is protected, and the use reliability is greatly improved.

The utility model discloses the technical scheme who adopts as follows:

the utility model provides an oil tank protection device for deep sea environment down, includes the oil tank, oil tank upper portion is provided with an export, and the check valve is installed through first combination packing ring in the exit, the exit of check valve is through second combination packing ring installation adapter, the cross-section right angle type structure of adapter, open the perforating hole that has with the check valve intercommunication in the middle of the right-angle portion of adapter, it has pagoda joint mounting hole to open in the middle of another right-angle portion of adapter, pagoda joint mounting hole and horizontally perforating hole are perpendicular and communicate, the pagoda connects the mounting hole and connects through O type circle installation pagoda, the externally mounted compensation oil pipe that the pagoda connects, compensation oil pipe and deep sea water environment are connected.

The further technical scheme is as follows:

the both ends of check valve set up left part recess and right part recess respectively, and the inside of left part recess and right part recess all is provided with the internal thread, the outer periphery in the exit of oil tank is provided with the external screw thread, is connected with the cooperation of left part recess, the outer periphery in a right corner portion of adapter sets up the external screw thread, is connected with the cooperation of right part recess.

The outer periphery at a right-angle part of the adapter is also provided with a ring groove, a second combined gasket is arranged in the ring groove, and the second combined gasket realizes sealing between the adapter and the check valve.

And a first combined gasket is arranged between the outer end face of the left part of the one-way valve and the step face of the outlet of the oil tank, so that the outlet of the oil tank and the one-way valve are sealed.

The compensation oil pipe is filled with compensation oil, the oil tank is filled with working oil, and the working oil is the same as the compensation oil in the compensation oil pipe in type.

The section of the pagoda joint is of a cross-shaped structure.

The utility model has the advantages as follows:

the utility model discloses compact structure, reasonable, convenient operation through the application of one set of switching equipment, is connected to the export of check valve with a longer compensation oil pipe, is full of the compensation oil in the compensation oil pipe. In an underwater environment, one end of the compensation oil pipe is connected with an outlet of the one-way valve through the pagoda joint and the adapter, so that the absolute pressure at the joint is one atmosphere or less, the other end of the compensation oil pipe is directly placed in the water environment, and the pressure applied to the end is one atmosphere plus the pressure generated by the water depth, so that the compensation oil in the compensation oil pipe is in a pressurized state at the moment, and the compensation oil pipe cannot flow out.

When the check valve is in the process of slowly closing after the check valve is opened, the compensation oil in the compensation oil pipe reversely enters the check valve under the action of external water pressure, and water in the external environment is prevented from entering the inside of the check valve. Thereby effectively protecting the oil tank.

The utility model discloses still possess following advantage:

1. the defects that the closing process of the traditional one-way valve is slow and water is easy to flow backwards when the valve is used in an underwater environment are overcome;

2. the system has simple working principle and higher scheme realization degree;

3. the system works reliably, and the deeper the working water depth is, the higher the external environment pressure is, the more reliable the system works;

4. the compensation oil pipe is lengthened, so that the underwater working environment with different depths can be adapted;

5. the design of the grooves at the two ends of the check valve can be conveniently connected with an outlet of the oil tank and the adapter;

6. the ingenious design of adapter, what can be convenient is connected with compensation oil pipe through pagoda joint to make its inside oil circuit intercommunication.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the check valve of the present invention.

Figure 3 is the structure schematic diagram of the utility model discloses adapter.

Wherein: 1. a compensation oil pipe; 2. compensation oil; 3. a pagoda joint; 4. an O-shaped ring; 5. an adapter; 6. a second composite washer; 7. a one-way valve; 8. a first composite washer; 9. an oil tank;

502. a through hole; 503. an annular groove; 504. a pagoda joint mounting hole;

701. a left recess; 702. a right recess.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1, fig. 2 and fig. 3, the oil tank protection device for deep sea environment of this embodiment includes an oil tank 9, an outlet is provided at an upper portion of the oil tank 9, a check valve 7 is installed at the outlet through a first combination washer 8, an adapter 5 is installed at the outlet of the check valve 7 through a second combination washer 6, a cross section of the adapter 5 is in a right-angle structure, a through hole 502 communicated with the check valve 7 is opened in the middle of a right-angle portion of the adapter 5, a pagoda joint installation hole 504 is opened in the middle of another right-angle portion of the adapter 5, the pagoda joint installation hole 504 is perpendicular to and communicated with the horizontal through hole 502, the pagoda joint installation hole 504 is provided with the pagoda joint 3 through an O-ring 4, a compensation oil pipe 1 is installed outside the pagoda.

The two ends of the check valve 7 are respectively provided with a left groove 701 and a right groove 702, internal threads are arranged inside the left groove 701 and the right groove 702, external threads are arranged on the outer circumferential surface of the outlet of the oil tank 9 and are matched and connected with the left groove 701, and external threads are arranged on the outer circumferential surface of a right corner of the adapter 5 and are matched and connected with the right groove 702.

An annular groove 503 is further formed in the outer circumferential surface of a right-angle portion of the adapter 5, a second combined gasket 6 is mounted in the annular groove 503, and the second combined gasket 6 achieves sealing between the adapter 5 and the check valve 7.

A first combined gasket 8 is arranged between the outer end face of the left part of the one-way valve 7 and the step face of the outlet of the oil tank 9, so that the outlet of the oil tank 9 and the one-way valve 7 are sealed.

The compensation oil pipe 1 is filled with compensation oil 2, the oil tank 9 is filled with working oil, and the type of the working oil is the same as that of the compensation oil 2 in the compensation oil pipe 1.

The section of the pagoda joint 3 is in a cross-shaped structure.

The utility model discloses a concrete structure and function as follows:

the oil tank 9 is a working container, the interior of the oil tank is filled with working oil, the type of the working oil is the same as that of the compensation oil 2, the oil tank 9 is provided with an outlet, the outlet is connected with the inner thread of the inlet of the one-way valve 7 through an external thread, and the outlet and the inlet are sealed through a first combined gasket 8. The outlet internal thread of the one-way valve 7 is connected with the inlet external thread of the adapter 5, and the two are sealed by a second combined gasket 6.

The adapter 5 is connected with the pagoda joint 3 through a pagoda joint mounting hole 504 arranged on the adapter, and is sealed by an O-shaped ring 4.

The pagoda joint 3 is connected with the compensation oil pipe 1, and the compensation oil 2 is filled into the compensation oil pipe 1 in advance.

In the actual use process:

in the deep sea water environment, when gas is generated in the oil tank 9 or the temperature rises to cause the internal pressure to increase and exceed the opening pressure of the one-way valve 7, the one-way valve 7 is opened to discharge part of the working oil for pressure relief, and in the pressure relief process, because the pressure in the system is greater than the pressure of the external water environment, the compensation oil 2 is continuously discharged into the water environment, so that the water in the external environment is prevented from flowing backwards.

In the pressure relief process, the pressure in the oil tank 9 is gradually reduced, and when the internal pressure is smaller than the opening pressure of the check valve 7, the check valve 7 starts to close. Because the ordinary check valve 7 generally adopts a spring as a power source for closing the valve, the closing process is a relatively slow process, and in the process, water in the external environment enters the inside of the check valve 7 under the action of pressure.

In this device, because the existence of compensation oil pipe 1 and compensation oil 2, compensation oil 2 will probably be than the preferential oil tank 9 that gets into of water to prevent that the water among the external environment from getting into check valve 7, the compensation oil 2 that gets into check valve 7 has also played the effect of the working oil of loss when compensateing the pressure release moreover. When the spring inside the check valve 7 is completely reset, the reverse blocking characteristic of the check valve 7 is restored. The oil tank 9 is reliable in work, effectively protects the oil tank 9, and prevents equipment from being damaged due to water entering the deep sea environment.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.

Claims

1. A fuel tank protection device for use in deep sea environments, characterized in that: comprises an oil tank (9), an outlet is arranged at the upper part of the oil tank (9), a one-way valve (7) is arranged at the outlet through a first combined gasket (8), the outlet of the one-way valve (7) is provided with a joint (5) through a second combined gasket (6), the cross section of the adapter (5) is of a right-angle structure, a through hole (502) communicated with the check valve (7) is formed in the middle of a right-angle part of the adapter (5), a pagoda joint mounting hole (504) is formed in the middle of the other right-angle part of the adapter (5), the pagoda joint mounting hole (504) is vertical to and communicated with the horizontal through hole (502), the pagoda joint mounting hole (504) is provided with a pagoda joint (3) through an O-shaped ring (4), and a compensation oil pipe (1) is arranged outside the pagoda joint (3), and the compensation oil pipe (1) is connected with a deep sea water environment.

2. A fuel tank protection device for use in deep sea environments according to claim 1, wherein: the both ends of check valve (7) set up left part recess (701) and right part recess (702) respectively, and the inside of left part recess (701) and right part recess (702) all is provided with the internal thread, the outer periphery in the exit of oil tank (9) is provided with the external screw thread, is connected with left part recess (701) cooperation, the outer periphery in a right-angle portion of adapter (5) sets up the external screw thread, is connected with right part recess (702) cooperation.

3. A fuel tank protection device for use in deep sea environments according to claim 1, wherein: the outer periphery of a right-angle portion of adapter (5) has still opened ring channel (503), installation second combination packing ring (6) in ring channel (503), second combination packing ring (6) realize the sealed between adapter (5) and check valve (7).

4. A fuel tank protection device for use in deep sea environments according to claim 1, wherein: a first combined gasket (8) is arranged between the outer end face of the left part of the one-way valve (7) and the step face of the outlet of the oil tank (9), and sealing between the outlet of the oil tank (9) and the one-way valve (7) is achieved.

5. A fuel tank protection device for use in deep sea environments according to claim 1, wherein: the oil compensation device is characterized in that compensation oil (2) is filled in the compensation oil pipe (1), the oil tank (9) is filled with working oil, and the working oil is the same as the compensation oil (2) in the compensation oil pipe (1) in type.

6. A fuel tank protection device for use in deep sea environments according to claim 1, wherein: the section of the pagoda joint (3) is of a cross structure.