A hydrocarbon separation vessel

Abstract

The utility model belongs to oil gas separation equipment technical field especially points to a kind of oil gas separation tank, including the tank body with open top, the flange end cover of the opening of tank body is detachably connected, the upper end of several oil separation filter element is detachably connected with flange end cover, the lower end of oil separation filter element is connected with oil liquid defoaming assembly, oil liquid defoaming assembly separates the inner cavity of tank body, air inlet, air outlet and oil return hole are provided on the tank body, and air inlet is located at the side of oil liquid defoaming assembly, air outlet is located at the side of oil separation filter element.The utility model is simple in structure, reasonable in design and low in cost, the oil foam on the surface of oil liquid is removed by using oil liquid defoaming assembly, to effectively solve the problem of imperfect oil gas separation caused by oil foam;And the flange end cover and tank body, oil separation filter element and flange end cover are detachably matched structure, overall disassembly is more convenient and easy to maintain and replace in later period.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oil gas separation equipment technical field, especially point to a kind of oil gas separation tank. BACKGROUND

[0002] The oil gas separation tank disclosed in the existing Chinese utility model patent (authorized publication number CN220979858U) includes a tank body, a fixed flange, an oil separation core assembly, a pressure maintaining valve assembly, an air inlet assembly and an oil return port. The fixed flange is detachably installed on the top of the tank body. The fixed flange is provided with a first installation groove. The oil separation core assembly includes an oil separation core, an oil separation core installation flange, an oil separation core fixing seat and an oil separation core cover. The oil separation core fixing seat is detachably installed on the inner side wall of the tank body. The top of the oil separation core installation flange is provided with a second installation groove. The two ends of the oil separation core are installed in the first installation groove and the second installation groove respectively. The oil separation core fixing seat is fixed at one end of the oil separation core away from the oil separation core installation flange and is located in the first installation groove. The oil separation core cover is covered on the oil separation core fixing seat and is detachably connected with the fixed flange. The pressure maintaining valve assembly, the air inlet assembly and the oil return port are arranged on the side wall of the tank body.

[0003] The above structure effectively separates oil and gas by means of the oil separation core assembly. The separated oil liquid drops downward along the wall surface of the oil separation core to the bottom of the tank body. Under the action of the gas pressure of the tank body, the oil liquid can flow out from the oil return port. However, in actual application, it is found that the oil liquid surface at the bottom of the tank body is covered with oil scum. This is because the oil liquid is mixed with gas again to form fine bubbles when it drops. This leads to the imperfect separation of oil and gas in the oil gas separation tank. SUMMARY

[0004] The utility model aims at providing an oil gas separation tank. The oil scum on the surface of oil liquid is removed by an oil liquid scum removal assembly to effectively solve the problem of imperfect separation of oil and gas caused by oil scum.

[0005] The utility model is implemented as follows:

[0006] An oil gas separation tank includes a tank body with an open top. A flange end cover is detachably connected to the opening of the tank body. The upper ends of a plurality of oil separation filter cartridges located in the tank body are detachably connected to the flange end cover. The lower ends of the oil separation filter cartridges are connected to an oil liquid scum removal assembly. The oil liquid scum removal assembly separates the inner cavity of the tank body into upper and lower parts. The oil separation filter cartridges are filter passages through which gas flows up and down through the oil liquid scum removal assembly. The tank body is provided with an air inlet port, an air outlet port and an oil return hole for connecting the inner cavity with the outside. The air inlet port is located on one side of the oil liquid scum removal assembly, and the air outlet port is located on one side of the oil separation filter cartridges.

[0007] In the oil-gas separation tank, the oil liquid defoaming assembly comprises a defoaming cylinder body fixed on the inner cavity of the tank body and having a lower port, and a defoaming wire mesh is horizontally laid on the inner cavity of the defoaming cylinder body through a fixed support.

[0008] In the oil-gas separation tank, the fixed support comprises a plurality of longitudinal support rods distributed in the transverse direction at equal intervals and a plurality of transverse support rods distributed in the longitudinal direction at equal intervals, the transverse support rods and the longitudinal support rods are distributed in an upper-lower staggered manner and form a support platform for laying the defoaming wire mesh.

[0009] In the oil-gas separation tank, the upper end surface of the defoaming cylinder body is provided with a plurality of lower assembly through holes corresponding to the oil separation filter elements, the flange end cover is provided with a plurality of upper assembly through holes corresponding to the oil separation filter elements, and a cover plate capable of covering and sealing the upper assembly through holes is detachably connected to the flange end cover, the upper end of the oil separation filter element penetrates through the upper assembly through hole and is detachably connected to the cover body, and the lower end is inserted into the lower assembly through hole.

[0010] In the oil-gas separation tank, the upper end of the oil separation filter element is fixedly connected to the cover body through screwing.

[0011] In the oil-gas separation tank, the outer edge of the flange end cover is circumferentially and uniformly provided with a plurality of assembly through holes one, and a fastening screw one penetrates through the assembly through hole one and is screwed on the tank body.

[0012] In the oil-gas separation tank, the outer edge of the cover plate is circumferentially and uniformly provided with a plurality of assembly through holes two, and a fastening screw two penetrates through the assembly through hole two and is screwed on the flange end cover.

[0013] In the oil-gas separation tank, the tank body is provided with a pressure relief hole communicating with the inner cavity and the outside, and a safety valve is arranged in the pressure relief hole.

[0014] In the oil-gas separation tank, an oil mirror for detecting the oil liquid level height in the inner cavity of the tank body is arranged on the outer wall surface of the tank body.

[0015] In the oil-gas separation tank, an oil filling hole with an upward outer end is arranged on the outer wall surface of the tank body.

[0016] Compared with the prior art, the oil-gas separation tank has the following advantages:

[0017] The oil-gas separation tank has the advantages of simple structure, reasonable design and low cost, the oil liquid defoaming assembly is used to remove the oil foam on the surface of the oil liquid, thereby effectively solving the problem of imperfect oil-gas separation caused by the oil foam, and the flange end cover and the tank body and the oil separation filter element and the flange end cover are detachably connected, so that the whole is convenient to disassemble and maintain and replace. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall perspective view of the utility model;

[0019] Figure 2 is the overall sectional view and oil gas mixture flow schematic view of the utility model.

[0020] In the figure: 1, tank body;2, flange end cover;3, oil separation filter element;4, air inlet port;5, air outlet port;6, oil return hole;7, demister cylinder;8, longitudinal support rod;9, transverse support rod;10, cover plate;11, pressure relief hole;12, oil mirror;13, oil injection hole. DETAILED DESCRIPTION

[0021] The utility model will be further described below with specific embodiments, refer to Figure 1 -2:

[0022] An oil gas separation tank, including the tank body 1 of the open top, the opening of the tank body 1 is detachably connected with flange end cover 2, the upper end of several oil separation filter elements 3 in the tank body 1 is detachably connected with flange end cover 2, the lower end of oil separation filter element 3 is connected with oil liquid demisting assembly, oil liquid demisting assembly separates the inner chamber of tank body 1, and the oil separation filter element 3 is the filter passage that gas flows up and down and penetrates oil liquid demisting assembly, the tank body 1 is provided with the air inlet port 4, the air outlet port 5 and the oil return hole 6 for connecting the inner chamber with the outside, and the air inlet port 4 is located at one side of oil liquid demisting assembly, and the air outlet port 5 is located at one side of oil separation filter element 3.

[0023] Wherein, oil gas mixture enters the tank body 1 from the air inlet port 4, and when contacting oil separation filter element 3, oil liquid can be separated from air and attached on oil separation filter element 3, and oil liquid particles become larger and drop to the bottom of tank body 1 under the action of gravity, and oil liquid demisting assembly is located at the surface of oil liquid accumulated at the bottom of tank body 1, so that it can effectively eliminate the oil foam at the surface of oil liquid and promote oil gas to further separate.It needs to be explained that, in the embodiment, the air inlet port 4 is arranged along the circumference of the tank body 1, so that the oil gas mixture can flow spirally when entering the tank body 1, which not only enables the oil gas mixture to fully contact oil separation filter element 3, but also enables larger oil liquid to be thrown to the inner wall surface of the tank body 1 under the action of centrifugal force.

[0024] The utility model has simple structure, reasonable design and low cost, and the oil foam on the surface of oil liquid is removed by adopting oil liquid demisting assembly, so that the problem of imperfect oil gas separation caused by oil foam is effectively solved;And the detachable cooperation structure is formed between flange end cover 2 and tank body 1 and between oil separation filter element 3 and flange end cover 2, so that the whole is convenient to disassemble and assemble and is convenient to maintain and replace in later period.

[0025] The oil liquid defoaming assembly can adopt a common structure on the market, and in the embodiment, the specific structure of the oil liquid defoaming assembly is that the oil liquid defoaming assembly comprises a defoaming cylinder 7 fixed on the inner cavity of the tank body 1 and having a lower port, and a defoaming wire mesh is horizontally laid on the inner cavity of the defoaming cylinder 7 through a fixed support. The fixed support comprises a plurality of longitudinal support rods 8 distributed at equal intervals in the transverse direction and a plurality of transverse support rods 9 distributed at equal intervals in the longitudinal direction, and the transverse support rods 9 are distributed in an upper-lower staggered manner with the longitudinal support rods 8 and form a support platform for the defoaming wire mesh.

[0026] Furthermore, in order to enable the oil filter element 3 to be quickly disassembled and assembled between the defoaming cylinder 7 and the flange end cover 2, the cooperation structure of the oil filter element 3, the defoaming cylinder 7 and the flange end cover 2 is that a lower assembly through hole consistent in number with the oil filter element 3 is formed on the upper end face of the defoaming cylinder 7, an upper assembly through hole consistent in number with the oil filter element 3 is formed on the flange end cover 2, a cover plate 10 capable of covering and sealing the upper assembly through hole is detachably connected to the flange end cover 2, and the upper end of the oil filter element 3 penetrates through the upper assembly through hole and is detachably connected to the cover plate 10 and the lower end is inserted into the lower assembly through hole. That is, only one cover plate 10 needs to be separated from the flange end cover 2, and the corresponding oil filter element 3 can be pulled out upward and disassembled and replaced, which is convenient to use and does not need to disassemble other equipment on the tank body 1, and the disassembly and maintenance efficiency is high.

[0027] The upper end of the oil filter element 3 is fixedly connected to the cover plate 10 through screwing. Of course, an auxiliary positioning plate can also be arranged between the upper end of the oil filter element 3 and the cover plate 10, that is, the oil filter element 3 is assembled and fixed on the auxiliary positioning plate through a screw rod and a nut, and the auxiliary positioning plate is fixed on the lower end face of the cover plate 10 through a fastening screw.

[0028] Meanwhile, the detachable structure between the flange end cover 2 and the tank body 1 can adopt threaded cooperation, and in the embodiment, a plurality of assembly through holes one are uniformly distributed on the outer edge of the flange end cover 2 in the circumferential direction, and a fastening screw one penetrates through the assembly through holes one and is screwed on the tank body 1.

[0029] Similarly, the cover plate 10 and the upper assembly through hole of the flange end cover 2 can adopt threaded cooperation, and in the embodiment, a plurality of assembly through holes two are uniformly distributed on the outer edge of the cover plate 10 in the circumferential direction, and a fastening screw two penetrates through the assembly through holes two and is screwed on the flange end cover 2.

[0030] In addition, in order to prevent the pressure in the tank 1 from being too high, a pressure relief hole 11 is arranged on the tank 1 and is communicated with the inner cavity and the outside, and a safety valve is arranged in the pressure relief hole 11. In addition, in order to facilitate the operator to observe the oil level in the tank 1, an oil mirror 12 for detecting the oil level in the tank 1 is arranged on the outer wall surface of the tank 1. In order to be able to add oil to the tank 1, an oil filling hole 13 is arranged on the outer wall surface of the tank 1 and is inclined.

[0031] The above embodiment is only one of the preferred embodiments of the present application, and does not limit the scope of the present application. Therefore, any equivalent changes made in shape, structure and principle according to the present application should be covered within the protection scope of the present application.

Claims

1. An oil and gas separation vessel, characterized by: The utility model provides a kind of oil separation filter element and oil mist removal assembly, including the open top tank (1), the open top of the tank (1) is detachably connected with flange end cover (2), the upper end of several oil separation filter elements (3) in tank (1) is detachably connected with flange end cover (2), the lower end of oil separation filter element (3) is connected with oil mist removal assembly, oil mist removal assembly separates the inner cavity of tank (1) into upper and lower, and the oil separation filter element (3) is gas flow filter channel that goes through oil mist removal assembly, tank (1) is provided with air inlet port (4), air outlet port (5) and oil return hole (6) for communicating inner cavity with outside, and air inlet port (4) is located on one side of oil mist removal assembly, and air outlet port (5) is located on one side of oil separation filter element (3).

2. A knockout pot according to claim 1, characterized in that: The oil mist removal assembly includes a defoaming cylinder (7) fixed to the inner cavity of the tank (1) and having a lower port, and a defoaming wire mesh horizontally laid on the inner cavity of the defoaming cylinder (7) through a fixed support.

3. A knockout pot as claimed in claim 2, characterized in that: The fixed support includes a plurality of longitudinal support rods (8) distributed equidistantly in the transverse direction and a plurality of transverse support rods (9) distributed equidistantly in the longitudinal direction, the transverse support rods (9) are distributed in a staggered manner with the longitudinal support rods (8) in the upper and lower directions and form a support platform for the defoaming wire mesh to be laid thereon.

4. A knockout pot as claimed in claim 2, wherein: The upper end surface of the defoaming cylinder (7) is provided with a number of lower assembly through holes consistent with the oil separation filter elements (3), the flange end cover (2) is provided with a number of upper assembly through holes consistent with the oil separation filter elements (3), and the flange end cover (2) is detachably connected with a cover plate (10) capable of covering and sealing the upper assembly through holes, the upper end of the oil separation filter element (3) penetrates through the upper assembly through hole and is detachably connected with the cover plate (10), and the lower end is inserted into the lower assembly through hole.

5. A knockout pot as claimed in claim 4, characterized in that: The upper end of the oil separation filter element (3) is fixedly connected with the cover plate (10) through screwing.

6. The oil and gas separation canister of claim 1, wherein: The outer edge of the flange end cover (2) is circumferentially and uniformly provided with a plurality of assembly through holes one, and a fastening screw one penetrates through the assembly through hole one and is screwed on the tank (1).

7. A knockout pot as claimed in claim 4, characterized in that: The outer edge of the cover plate (10) is circumferentially and uniformly provided with a plurality of assembly through holes two, and a fastening screw two penetrates through the assembly through hole two and is screwed on the flange end cover (2).

8. The oil and gas separation canister of claim 1, wherein: The tank (1) is provided with a pressure relief hole (11) communicating the inner cavity with the outside, and a safety valve is arranged in the pressure relief hole (11).

9. The oil and gas separation canister of claim 1, wherein: An oil mirror (12) for detecting the oil level in the inner cavity of the tank (1) is arranged on the outer wall surface of the tank (1).

10. The oil and gas separation canister of claim 1, wherein: An oil filling hole (13) with an upward outer end is obliquely arranged on the outer wall surface of the tank (1).

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