Sectional type simple three-phase separation device

Abstract

The utility model discloses a sectional type simple three-phase separation device which comprises a cyclone separation section, an air flotation separation section, a static settling section and a filtering control section which are sequentially connected in series in the material flowing direction, and all the sections are fixed through flanges to form a closed tank body; an outlet of the cyclone separation section is connected to an inlet of the air flotation separation section through a pipeline; according to the cyclone separation section disclosed by the utility model, gas with relatively low density is quickly gathered and discharged from the top by utilizing high-speed rotational motion of the cyclone, and meanwhile, the gas content in liquid is reduced, so that the subsequent separation process is prevented from being interfered by the gas. The air flotation separation section releases tiny bubbles through a bubble generator, the bubbles are attached to the surfaces of oil drops, the density of the bubbles is reduced, the bubbles are accelerated to float to an oil collecting tank, and oil-water separation efficiency is improved. The static settling section controls the flow rate of liquid through an adjustable partition plate, so that fine oil drops and suspended particles are fully settled in a low-flow-rate environment, the impurity content is reduced, and it is ensured that the discharged water quality reaches the standard.

Description

Technical Field

[0001] This utility model belongs to the field of three-phase separation devices, specifically, it relates to a segmented simple three-phase separation device. Background Technology

[0002] In oil extraction, chemical production, and industrial wastewater treatment, efficient separation of oil, gas, and water is crucial for ensuring stable system operation and environmental compliance. Traditional three-phase separation devices typically employ either gravity sedimentation or flotation. However, due to the small particle size and limited density differences of oil droplets and solid particles, a single separation method often fails to achieve efficient separation, resulting in low treatment efficiency, unstable separation effects, and even impacting the operation of subsequent treatment equipment. Furthermore, direct entry of gas-containing liquids into sedimentation or filtration devices can cause flow rate fluctuations, affecting sedimentation efficiency and potentially leading to gas accumulation, thus compromising equipment safety.

[0003] In view of this, this utility model is hereby proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a segmented simple three-phase separation device, which solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A segmented, simple three-phase separation device includes: a cyclone separation section, an air flotation separation section, a static settling section, and a filtration control section connected in series along the material flow direction, with each section fixed together by flanges to form a closed tank.

[0007] The outlet of the cyclone separation section is connected to the inlet of the air flotation separation section via a pipeline;

[0008] The bottom outlet of the air flotation separation section is connected to the inlet of the static settling section via an adjustable baffle.

[0009] The outlet of the static settling section is connected to the inlet of the filtration control section via a connecting pipe.

[0010] Optionally, the cyclone separation section includes: a produced fluid inlet located on the upper sidewall of the cyclone separation section for inputting a mixture of oil, gas, and water;

[0011] Two hydrocyclones are symmetrically arranged inside the tank, and the inlet of the hydrocyclones is connected to the inlet of the produced fluid.

[0012] A gas collecting hood is fixed at the top of the cyclone separator section. The gas collecting hood is connected to the gas outlet of the cyclone separator and discharges the separated gas through the exhaust port.

[0013] Optionally, the air flotation separation section includes: four sets of bubble tubes evenly distributed along the length of the tank; four sets of baffles vertically installed inside the tank, the spacing between the baffles being adjustable to control the liquid flow rate; and a bubble generator connected to the bottom of the tank.

[0014] Optionally, the static settling section includes: two tank openings located at the top of the tank for inspection and observation; four sets of oil outlet pipes arranged at an angle in the upper part of the settling section and connected to the oil accumulation pipeline; and two sets of partition plates installed alternately to extend the liquid flow path.

[0015] Optionally, the filtration control section includes: a collection tank, a limit switch on one side of the collection tank, a liquid level sensor above the collection tank, multiple sets of slotted screens arranged horizontally at the bottom of the inner wall of the collection tank, and an electric valve installed at the connecting pipe to form a closed-loop liquid level control system.

[0016] Optionally, it also includes an oil drainage system, which consists of an oil drain port, an oil screw pump, and an oil collection pipeline.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0018] 1. The cyclone separation section of this invention utilizes the high-speed rotation of a hydrocyclone to rapidly gather less dense gases and discharge them from the top, simultaneously reducing the gas content in the liquid and preventing gas interference in subsequent separation processes. The flotation separation section releases microbubbles through a bubble generator. These bubbles adhere to the surface of oil droplets, reducing their density and accelerating their rise to the oil collection tank, thus improving oil-water separation efficiency. The static settling section controls the liquid flow rate through adjustable baffles, allowing fine oil droplets and suspended particles to settle fully in a low-flow-rate environment, reducing impurity content and ensuring that the discharged water meets standards.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0021] In the picture:

[0022] Figure 1 This is a schematic diagram of the internal sectional structure.

[0023] Figure 2 This is a schematic diagram of the right-side external cross-sectional structure;

[0024] Figure 3 This is a top-view cross-sectional structural diagram.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] Please see Figure 1-3 As shown, this embodiment provides a segmented simple three-phase separation device, including a cyclone separation section 1, an air flotation separation section 2, a static settling section 3 and a filtration control section 4 connected in series along the material flow direction. Each section is fixed together by flanges to form a closed tank.

[0028] The outlet of the cyclone separation section 1 is connected to the inlet of the air flotation separation section 2 via a pipeline;

[0029] The bottom outlet of the air flotation separation section 2 is connected to the inlet of the static settling section 3 through an adjustable baffle 21;

[0030] The outlet of the static settling section 3 is connected to the inlet of the filter control section 4 via a connecting pipe 31. The cyclone separation section of this invention utilizes the high-speed rotation of a cyclone separator to rapidly gather less dense gases and discharge them from the top, simultaneously reducing the gas content in the liquid and preventing gas interference in subsequent separation processes. The air flotation separation section releases microbubbles through a bubble generator. These bubbles adhere to the surface of oil droplets, reducing their density and accelerating their rise to the oil collection tank, thus improving oil-water separation efficiency. The static settling section controls the liquid flow rate through adjustable baffles, allowing fine oil droplets and suspended particles to settle fully in a low-flow-rate environment, reducing impurity content and ensuring that the discharged water meets standards.

[0031] In this embodiment, the cyclone separation section 1 includes:

[0032] The produced fluid inlet 11, located on the upper side wall of the cyclone separation section 1, is used to input a mixture of oil, gas, and water.

[0033] Two hydrocyclones 12 are symmetrically arranged inside the tank, and the inlet of the hydrocyclone 12 is connected to the produced liquid inlet 11;

[0034] A gas collecting hood 13 is fixed to the top of the hydrocyclone separation section 1. The hood 13 is connected to the gas outlet of the hydrocyclone 12 and discharges the separated gas through the exhaust port 14. An oil, gas, and water mixture is introduced from the side wall through the produced liquid inlet, causing the fluid to enter the hydrocyclone in a specific direction, forming a stable rotating flow. Two symmetrically arranged hydrocyclones ensure uniform liquid distribution, improving gas-liquid separation efficiency. The rotational motion inside the hydrocyclone generates strong centrifugal force, causing the less dense gas to rapidly converge towards the center and be collected by the gas collecting hood, reducing gas residue in the liquid phase. Finally, the separated gas is discharged through the exhaust port, reducing gas interference with subsequent separation processes, minimizing the risk of gas accumulation inside the equipment, and improving overall separation efficiency and operational stability.

[0035] In this embodiment, the air flotation separation section 2 includes: four sets of bubble tubes 22 evenly distributed along the length of the tank, with a bubble generator 23 connected to the bottom of the tank; and four sets of vertically installed baffles 21 inside the tank, the spacing of which is adjustable to control the liquid flow rate. The even distribution of the bubble tubes along the length of the tank ensures that the microbubbles generated by the bubble generator rise uniformly, guaranteeing that oil droplets in the entire liquid phase region fully contact the bubbles, thus improving the oil droplet flotation efficiency. The adjustable spacing of the vertically installed baffles optimizes the liquid flow rate, preventing turbulence from affecting oil droplet aggregation and preventing short-circuit flow, thereby improving the overall efficiency of the air flotation separation.

[0036] In this embodiment, the static settlement section 3 includes:

[0037] Four Φ500 tank openings are located on the top of the tank for inspection and observation.

[0038] Four sets of oil outlet pipes 33 are inclinedly arranged in the upper part of the settling section and connected to the oil accumulation pipeline 34.

[0039] Two sets of partition plates 35 are installed in an alternating manner to extend the liquid flow path.

[0040] In this embodiment, the filtration control section 4 includes: a collection tank 44, a limit switch 45 on one side of the collection tank 44, a liquid level sensor 42 above the collection tank 44, and multiple sets of slotted screens 41 horizontally arranged at the bottom of the inner wall of the collection tank 44. An electric valve 43 is installed at the connecting pipe 31 to form a closed-loop liquid level control system. The slotted screens are horizontally arranged at the bottom of the tank, which can effectively and evenly distribute the outflow velocity of the water, preventing local high-speed flow from causing solid particles to be washed away or blocked. At the same time, the screen structure is used to finely filter the small suspended particles in the water, improving the quality of the outflow water. The liquid level sensor monitors the liquid level in the tank in real time and is linked with the electric valve to form a closed-loop control system, realizing automatic adjustment of the drainage flow rate.

[0041] In this embodiment, it also includes: an oil draining system and an exhaust system. The oil draining system consists of an oil drain port 51, an oil sucker screw pump 52, and an oil collection pipeline 34.

[0042] By connecting the air flotation separation section and the static settling section through the oil drain port, it is ensured that the oil generated in different separation stages can be efficiently collected and transported to the oil collection pipeline through the oil screw pump, reducing the possibility of oil and water remixing and improving the oil recovery rate.

[0043] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A segmented, simple three-phase separation device, characterized in that, include: The cyclone separation section (1), the air flotation separation section (2), the static settling section (3) and the filtration control section (4) are connected in series along the material flow direction, and the sections are fixed together by flanges to form a closed tank. The outlet of the cyclone separation section (1) is connected to the inlet of the air flotation separation section (2) via a pipeline; The bottom outlet of the air flotation separation section (2) is connected to the inlet of the static settling section (3) through an adjustable baffle (21); The outlet of the static settling section (3) is connected to the inlet of the filter control section (4) via a connecting pipe (31).

2. The segmented simplified three-phase separator according to claim 1, characterized in that, The cyclone separation section (1) includes: a produced fluid inlet (11) located on the upper side wall of the cyclone separation section (1) for inputting a mixture of oil, gas and water; Two hydrocyclones (12) are symmetrically arranged inside the tank body, and the inlet of the hydrocyclone (12) is connected to the produced fluid inlet (11); A gas collecting hood (13) is fixed to the top of the cyclone separation section (1). The gas collecting hood (13) is connected to the gas outlet of the cyclone separator (12) and discharges the separated gas through the exhaust port (14).

3. The segmented simplified three-phase separator according to claim 1, characterized in that, The air flotation separation section (2) includes: four sets of bubble tubes (22) evenly distributed along the length of the tank; four sets of baffles (21) vertically installed in the tank, the spacing between the baffles being adjustable to control the liquid flow rate; and a bubble generator (23) connected to the bottom of the tank.

4. The segmented simplified three-phase separator according to claim 1, characterized in that, The static settling section (3) includes: two tank openings (32) located at the top of the tank for maintenance and observation; four sets of oil outlet pipes (33) arranged at an angle in the upper part of the settling section and connected to the oil accumulation pipeline (34); and two sets of partition plates (35) installed alternately to extend the liquid flow path.

5. A segmented, simplified three-phase separator according to claim 1, characterized in that, The filter control section (4) includes: a collection tank (44), a limit switch is provided on one side of the collection tank (44), a liquid level sensor (42) is provided above the collection tank (44), multiple sets of slotted screens (41) are arranged horizontally at the bottom of the inner wall of the collection tank (44), and an electric valve (43) is installed at the connecting pipe (31) to form a closed-loop liquid level control system.

6. A segmented, simplified three-phase separator according to claim 1, characterized in that, Also includes: The oil drainage system consists of an oil drain port (51), an oil screw pump (52), and an oil collection pipeline (34).

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