CN219003042U

CN219003042U - Nitrogen protection device for oil gas recovery

Info

Publication number: CN219003042U
Application number: CN202223466107.4U
Authority: CN
Inventors: 沈沛银; 裴培光; 王成; 庞刚
Original assignee: Ningxia Taifu Energy Storage Co ltd
Current assignee: Ningxia Taifu Energy Storage Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-05-12
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a nitrogen protection device for oil gas recovery, which comprises an oil storage tank, an oil gas tank and an air separator, wherein one side of the air separator is provided with an air inlet assembly, the air inlet assembly comprises an air inlet pipe communicated with the air separator, an air pump is arranged on the air inlet pipe, the other end of the air inlet pipe is communicated with two bifurcation pipes, the bifurcation pipes are respectively provided with a switch valve, and the other ends of the bifurcation pipes are respectively fixedly connected with a filter frame. According to the utility model, the two identical bifurcation pipes are communicated on the air inlet pipe in the air separator, and the air inlet conditions of the two bifurcation pipes are controlled by the control valve, and under normal conditions, only one bifurcation pipe is used for air inlet, so that the air separator can normally and continuously perform air inlet operation, the air separator is conveniently and continuously supplied with air, the nitrogen pipe on the oil gas pipe and the nitrogen in the protection pipe can be normally supplied, and the safety during oil gas recovery is improved.

Description

Nitrogen protection device for oil gas recovery

Technical Field

The utility model relates to the technical field of oil gas recovery, in particular to a nitrogen protection device for oil gas recovery.

Background

The nitrogen is mainly prepared by separating from the atmosphere or decomposing nitrogen-containing compounds, is an inert gas and generally does not react with other substances, has an important protection effect on oil gas recovery, and mainly isolates air from oil gas by utilizing the stability of the nitrogen to play a role in safe production.

The existing nitrogen gas used in oil gas recovery mainly originates from the external environment, and is directly used for protecting oil gas after the nitrogen gas in the air is extracted by the air separator, and because the air contains certain dust and impurities, the air is required to be filtered when the air separator pumps in the air, and the dust can block the filter screen, so that the blocked filter screen is required to be cleaned by stopping in the use process, and the continuity of the air separator during working can be affected.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a nitrogen protection device for oil gas recovery.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a nitrogen protection device for oil gas recovery, includes oil storage tank, oil gas tank and air separator, one side of air separator is provided with the subassembly that admits air, the subassembly that admits air is including the intake pipe of intercommunication on air separator, be provided with the air pump in the intake pipe, the other end intercommunication of intake pipe has two bifurcation pipe, two all be provided with the ooff valve on the bifurcation pipe, two the equal fixedly connected with filter frame of the other end of bifurcation pipe, filter frame's inside has set gradually filter screen, filtration cotton layer and activated carbon layer, one side intercommunication of oil storage tank has oil pipe, the surface of oil pipe is through a plurality of support column fixedly connected with recovery tube, the outside of recovery tube is provided with the protection component.

As a further description of the above technical solution:

the protection assembly comprises a protection tube fixedly connected to the outer surface of the recovery tube through a plurality of support columns, and one end of the protection tube is communicated with a nitrogen tube.

As a further description of the above technical solution:

the other end of the nitrogen pipe is communicated with the air separator, the other end of the protection pipe is communicated with the protection cover, and a plurality of air outlet holes are formed in the outer surface of the protection cover.

As a further description of the above technical solution:

the oil pipe is characterized in that an oil gun is arranged at the other end of the oil pipe and positioned in the protective cover, and a plurality of recovery holes are formed in the other end of the recovery pipe and positioned in the protective cover.

As a further description of the above technical solution:

the other end of the recovery pipe is communicated with a collecting pipe, and the other end of the collecting pipe is communicated with the oil gas tank.

As a further description of the above technical solution:

the other side of the air separator is communicated with an air outlet pipe, and the other end of the air outlet pipe is communicated with a collecting tank.

The utility model has the following beneficial effects:

compared with the prior art, this nitrogen protection device for oil gas recovery, through the intercommunication two same bifurcation pipes in the intake pipe in the air separator, and the condition of admitting air through two bifurcation pipes of control valve control, under normal condition, only need use the bifurcation pipe of one side to admit air, when the filter screen on the bifurcation pipe of one end of admitting air blocks up, open the bifurcation pipe of opposite side through the control valve and admit air, make the air separator can be normal continue to advance air operation, the convenience is continuous to air separator supplies air, make nitrogen pipe and protection pipe on the oil gas pipe in nitrogen gas pipe can normally supply, the security when having improved the oil gas recovery.

Drawings

FIG. 1 is a perspective view of the whole structure of a nitrogen protection device for oil and gas recovery;

FIG. 2 is another perspective view of the whole structure of the nitrogen protection device for oil and gas recovery according to the present utility model;

FIG. 3 is a longitudinal sectional view of a partial structural connection of a nitrogen protection device for oil and gas recovery according to the present utility model;

FIG. 4 is a longitudinal sectional view of the internal structure of a filter frame in a nitrogen protection device for oil and gas recovery.

Legend description:

1. an oil storage tank; 2. an oil tank; 3. an air separator; 4. an air inlet pipe; 5. a bifurcation tube; 6. a switch valve; 7. a filter frame; 8. a filter screen; 9. a filter cotton layer; 10. an activated carbon layer; 11. an oil pipe; 12. a support column; 13. a recovery pipe; 14. a protective tube; 15. a nitrogen pipe; 16. a protective cover; 17. an air outlet hole; 18. an oil gun; 19. a recovery hole; 20. a collection pipe; 21. an air outlet pipe; 22. a collection tank; 23. an air pump.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the utility model provides a nitrogen protection device for oil gas recovery, which comprises: including oil storage tank 1, oil gas jar 2 and air separator 3, air separator 3 can adopt the nitrogen making machine, can separate the higher nitrogen gas of purity from the air, one side of air separator 3 is provided with the subassembly that admits air, the subassembly that admits air is including the intake pipe 4 of intercommunication on air separator 3, be provided with air pump 23 on intake pipe 4, external power source and control switch are connected to air pump 23, the other end intercommunication of intake pipe 4 has two bifurcation pipes 5, all be provided with ooff valve 6 on two bifurcation pipes 5, the equal fixedly connected with filter frame 7 of the other end of two bifurcation pipes 5, filter frame 7's inside has set gradually filter screen 8, filter cotton layer 9 and activated carbon layer 10, the opposite side intercommunication of air separator 3 has outlet duct 21, the other end intercommunication of outlet duct 21 has collection tank 22, one side intercommunication of oil storage tank 1 has oil pipe 11, the surface of oil pipe 11 is through a plurality of support column 12 fixedly connected with recovery pipe 13, through setting up support column 12 for at the surface mounting of oil pipe 11 and support recovery pipe 13, the other end intercommunication of recovery pipe 13 has collecting pipe 20, the other end intercommunication of collecting pipe 20 with oil gas jar 2.

The outside of retrieving pipe 13 is provided with protection component, protection component includes the protection pipe 14 at retrieving pipe 13 surface through a plurality of support columns 12 fixed connection, set up support column 12 at retrieving pipe 13's surface, be used for fixed and support protection pipe 14, the one end intercommunication of protection pipe 14 has nitrogen gas pipe 15, the other end and the air separator 3 intercommunication of nitrogen gas pipe 15, the other end intercommunication of protection pipe 14 has safety cover 16, a plurality of ventholes 17 have been seted up to the surface of safety cover 16, the other end of oil pipe 11 just is located the inside of safety cover 16 and is provided with out oily rifle 18, a plurality of recovery holes 19 have been seted up to the inside of the other end of retrieving pipe 13 just being located safety cover 16.

Working principle:

when the air inlet pipe 4 is in operation, one switch valve 6 in two bifurcation pipes 5 communicated with the air inlet pipe 4 is opened, at the moment, an air pump 23 and an air separator 3 on the air inlet pipe 4 are opened, the air pump 23 sucks external air into the air inlet pipe 4 through a filter frame 7 on the bifurcation pipe 5 with one side communicated, when the external air enters the filter frame 7, the air is filtered by a filter screen 8 on the filter frame 7, so that the air with larger dust and impurities is left on one side of the filter screen 8, the filtered air enters a cotton filtering layer 9 and an activated carbon layer 10 in the filter frame 7 for secondary filtration, the filtered air enters the air inlet pipe 4 through the bifurcation pipe 5 and finally enters the air separator 3, nitrogen is separated out through the air separator 3, the nitrogen enters a nitrogen pipe 15, the separated oxygen enters a collecting tank 22 through an air outlet pipe 21 for unified collection, the nitrogen in the air inlet nitrogen pipe 15 enters a protective cover 16 along an air outlet hole 17 on the outer side of the protective cover 16, and then the air inlet and the protective cover 18 can be isolated from the outer side of the protective cover 16, and the air can be recycled outside the protective cover 19;

when the filter screen 8 on the bifurcation 5 of the intake pipe 4 one end is blocked, the intake of the bifurcation 5 is affected, at this time, the switch valve 6 on the bifurcation 5 on the other side can be opened, and the switch valve 6 on the bifurcation 5 is closed, so that the normal air supply to the air separator 3 can be ensured.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a nitrogen protection device for oil gas recovery, includes oil storage tank (1), oil gas tank (2) and air separator (3), its characterized in that: one side of air separator (3) is provided with the subassembly that admits air, the subassembly that admits air is including intercommunication intake pipe (4) on air separator (3), be provided with air pump (23) on intake pipe (4), the other end intercommunication of intake pipe (4) has two bifurcation pipe (5), two all be provided with ooff valve (6) on bifurcation pipe (5), two the equal fixedly connected with filter frame (7) of the other end of bifurcation pipe (5), filter the inside of frame (7) has set gradually filter screen (8), filtration cotton layer (9) and activated carbon layer (10), one side intercommunication of oil storage tank (1) has oil pipe (11), the surface of oil pipe (11) is through a plurality of support column (12) fixedly connected with recovery pipe (13), the outside of recovery pipe (13) is provided with protection component.

2. The nitrogen protection device for oil and gas recovery according to claim 1, wherein: the protection assembly comprises a protection tube (14) fixedly connected to the outer surface of the recovery tube (13) through a plurality of support columns (12), and one end of the protection tube (14) is communicated with a nitrogen tube (15).

3. The nitrogen protection device for oil and gas recovery according to claim 2, wherein: the other end of the nitrogen pipe (15) is communicated with the air separator (3), the other end of the protection pipe (14) is communicated with the protection cover (16), and a plurality of air outlet holes (17) are formed in the outer surface of the protection cover (16).

4. A nitrogen protection device for oil and gas recovery according to claim 3, wherein: the oil pipe (11) is characterized in that an oil gun (18) is arranged at the other end of the oil pipe and positioned in the protective cover (16), and a plurality of recovery holes (19) are formed in the other end of the recovery pipe (13) and positioned in the protective cover (16).

5. The nitrogen protection device for oil and gas recovery according to claim 1, wherein: the other end of the recovery pipe (13) is communicated with a collecting pipe (20), and the other end of the collecting pipe (20) is communicated with the oil-gas tank (2).

6. The nitrogen protection device for oil and gas recovery according to claim 1, wherein: the other side of the air separator (3) is communicated with an air outlet pipe (21), and the other end of the air outlet pipe (21) is communicated with a collecting tank (22).