Three-phase separator

Abstract

The application provides a three-phase separator and relates to the technical field of petroleum processing. The three-phase separator comprises a first shell, a second shell and a bubble breaking device; the first shell is accommodated in the second shell, the second shell comprises a feeding port, a discharging port and a gas outlet, both ends of the first shell are open, and the bubble breaking device is arranged at one end of the first shell away from the feeding port; the bubble breaking device comprises a cover body, one end of the cover body is open, a plurality of air holes are arranged in the cover body, the inner wall of the air hole is provided with a thorn, and the open end of the cover body faces the first shell. The three-phase separator provided by the application can sufficiently remove bubbles in fluid, prevent bubbles from bringing catalyst into hydrogenated oil, break large-diameter bubbles, avoid fine catalyst powder from being taken out by gas phase, and influence the stable operation of the device.

Description

Technical Field

[0001] This invention relates to the field of petroleum processing technology, and more particularly to a three-phase separator. Background Technology

[0002] In recent years, the deep processing of inferior heavy oil has become a key focus of technology development in the oil refining industry. Among them, the fluidized bed heavy oil hydrogenation technology has significant advantages in the lightening of heavy oil. It has advantages such as online catalyst replacement, high utilization rate, long operating cycle, and flexible unit operation, which can meet the requirements of large-scale unit operation and long-term operation.

[0003] For fluidized bed hydrogenation reactors, the core technology is to achieve efficient separation of the gas phase (hydrogen), liquid phase (oil), and solid phase (catalyst), ensuring that the gas phase and the hydrogenated oil discharged from the reactor are free of catalyst. The problem of catalyst in the gas phase mainly stems from the collision and abrasion of the catalyst during the fluidized bed reaction, resulting in fine catalyst powder that easily adheres to air bubbles and enters downstream devices through the gas phase channel at the top of the reactor, causing valve or pipeline blockage. The problem of catalyst in the hydrogenated oil is primarily due to the inability of air bubbles to separate effectively from the liquid phase in the separation zone, allowing them to enter the liquid-solid two-phase settling zone, where they severely impair catalyst settling efficiency. Therefore, effectively removing air bubbles to prevent the carryover of fine catalyst powder or particles from the gas and liquid phases is a pressing technical problem that needs to be solved. Summary of the Invention

[0004] This invention provides a three-phase separator to solve the technical problem that existing three-phase separators are unable to fully remove air bubbles.

[0005] This invention provides a three-phase separator, comprising a first housing, a second housing, and a bubble breaking device;

[0006] The first housing is housed within the second housing, the second housing includes a feed inlet, a discharge outlet, and an air outlet, the first housing has openings at both ends, and the bubble breaking device is located at the end of the first housing away from the feed inlet;

[0007] The bubble breaking device includes a cover with an opening at one end. The cover has multiple air holes inside, and the inner wall of the air holes is constructed with spikes. The opening end of the cover faces the first housing.

[0008] According to a three-phase separator provided by the present invention, a plurality of air holes are spaced apart on the cover, and the central axes of the plurality of air holes are parallel to each other.

[0009] According to a three-phase separator provided by the present invention, the ratio of the opening diameter of the bubble breaking device to the opening diameter of the end of the first housing away from the feed inlet is 1 to 1.5.

[0010] According to a three-phase separator provided by the present invention, the three-phase separator further includes a third housing, the third housing being housed within a second housing, the third housing having an opening at one end near the discharge port, and the first housing being at least partially located within the third housing;

[0011] The outer wall of the first housing has a first gap with the inner wall of the third housing, and the outer wall of the third housing has a second gap with the inner wall of the second housing.

[0012] According to a three-phase separator provided by the present invention, a plurality of flow guide slits are provided at the end of the first housing away from the feed inlet, and the plurality of flow guide slits are distributed at intervals around the central axis of the first housing, so that the end of the first housing away from the feed inlet is in the shape of a comb.

[0013] According to a three-phase separator provided by the present invention, the length direction of each of the flow guide slots is inclined to the central axis of the first housing.

[0014] According to a three-phase separator provided by the present invention, the angle between the extension line of the guide slit and the extension line of the connecting line between the bottom end of the guide slit and the axis of the first housing is 15° to 45°.

[0015] According to a three-phase separator provided by the present invention, a guide plate is provided around the outer wall of the first housing, the connection between the guide plate and the outer wall of the first housing is close to the guide slot, and the inner diameter of the guide plate gradually increases from the direction away from the feed inlet to the direction close to the feed inlet.

[0016] According to a three-phase separator provided by the present invention, a flow guide is provided at the end of the third housing away from the feed inlet, the inner diameter of the flow guide gradually increases from the direction close to the feed inlet to the direction away from the feed inlet, and the flow guide plate is located within the space enclosed by the flow guide.

[0017] According to a three-phase separator provided by the present invention, the edge of the guide plate near the feed inlet has a third gap with the inner wall surface of the guide portion, and the ratio of the width of the third gap to the width of the first gap is 0.9 to 1.3.

[0018] The three-phase separator provided by this invention features a first housing housed within a second housing. The second housing includes an inlet, an outlet, and a gas outlet. The first housing has openings at both ends. A bubble breaking device is located at the end of the first housing furthest from the inlet, allowing fluid to flow into the first housing from the inlet of the second housing and pass through the bubble breaking device at the end of the first housing furthest from the inlet, thus removing bubbles from the fluid. The bubble breaking device has multiple pores within its housing, with spikes forming the inner walls of the pores, effectively removing bubbles from the fluid and preventing bubbles from carrying catalyst into the hydrogenation oil production process. It also breaks up oversized bubbles, preventing fine catalyst powder from being carried out by the gas phase and affecting the stable operation of the device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of the three-phase separator provided by the present invention;

[0021] Figure 2 This is a cross-sectional perspective view of the three-phase separator provided by the present invention;

[0022] Figure 3 This is a schematic diagram of the bubble breaking device provided by the present invention.

[0023] Figure label:

[0024] 1: Bubble breaking device; 10: Cover; 101: Air hole; 102: Spike; 2: First shell; 21: Body; 22: First shell guide section; 23: Guide slit; 24: Guide plate; 3: Second shell; 31: Inlet; 32: Outlet; 33: Air outlet; 34: Second shell guide section; 4: Third shell; 41: Guide section. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0026] In the description of this invention, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] like Figure 1 and Figure 2 As shown, the three-phase separator provided in this embodiment of the invention includes a first housing 2, a second housing 3, and a bubble breaking device 1.

[0030] The first housing 2 is housed within the second housing 3. The second housing 3 includes a feed inlet 31, a discharge outlet 32, and an air outlet 33. The first housing 2 has openings at both ends, and the bubble breaking device 1 is located at the end of the first housing 2 away from the feed inlet 31.

[0031] The bubble breaking device 1 includes a cover 10, one end of which is open. The cover 10 has a plurality of air holes 101 inside, and the inner wall of the air holes 101 is constructed with spikes 102. The open end of the cover 10 faces the first housing 2.

[0032] Both the first housing 2 and the second housing 3 are hollow structures. The inlet 31 is located at the end of the second housing 3, and the outlet 32 ​​is located on the side wall of the second housing 3 and is relatively perpendicular to the central axis of the second housing 3.

[0033] The first housing 2 is a cylindrical structure with openings at both ends. Preferably, the first housing 2 and the second housing 3 are coaxially arranged. The first housing 2 is fixed inside the second housing 3 by a support member with a hollow structure, such as a bracket.

[0034] like Figure 1 As shown, under normal operating conditions of the three-phase separator, the central axis of the second shell 3 is parallel to the vertical direction, and the feed inlet 31 is located at the bottom of the second shell 3, serving as a connection to the reactor. The gas outlet is located at the top of the first shell 2, facilitating the upward escape of gas. Fluid enters the first shell 2 through the feed inlet 31 and gradually rises, achieving separation of the gas phase and the liquid-solid phase in the upper part of the first shell 2 away from the feed inlet 31. Medium-diameter and extra-large-diameter bubbles detach from the liquid phase and rise, being broken by the bubble breaking device 1, achieving separation of the liquid film and gas. Simultaneously, the catalyst fine powder returns to the liquid phase; the liquid and solid phases flow out of the first shell 2. During this process, small-diameter bubbles remain in the liquid phase and flow out of the first shell 2. The liquid and solid phases flowing out of the first shell 2, along with the small-diameter bubbles, gradually deposit the solid phase near the bottom of the second shell 3 and flow back into the reactor through the feed inlet 31. The liquid level gradually rises and flows out from the outlet 32. The three-phase separator achieves gas, liquid, and solid phase separation.

[0035] By installing a bubble breaking device 1 at the end of the first housing 2 away from the feed inlet 31, it is helpful to efficiently remove gas from the fluid and achieve efficient separation of gas from liquid and solid phases. The bubble breaking device 1 can be installed on the end face of the first housing 2, or it can be spaced above the first housing 2 by means of a support member with a hollow structure such as a bracket.

[0036] The cover 10 of the bubble-breaking device 1 can be a semi-closed shape with one end open, such as a cylinder or a cuboid. For example... Figure 3 As shown, the cover 10 is arc-shaped, and its inner diameter gradually decreases from the opening end to the direction away from the opening end. The opening end of the cover 10 faces the first housing 2, and the cover 10 covers the upper end of the first housing 2.

[0037] Multiple air holes 101 are provided through the cover 10, forming multiple gas flow channels. At least one spike 102 is constructed inside the air hole 101. When a large-diameter bubble passes through the air hole 101, it will be punctured by the spike 102, and the gas will flow out of the three-phase separator through the outlet 33. When a small-diameter bubble passes through the air hole 101, it will flow directly through the gas flow channel to the outside of the gas crushing device and flow out of the three-phase separator through the outlet 33.

[0038] In one specific embodiment, the spikes 102 are vertically disposed on the inner wall of the vent 101, and multiple spikes 102 are staggered along the length of the vent 101. The length of the spikes 102 is not greater than the radius of the vent 101, so as not to affect the rate at which the bubbles pass through the vent 101. It should be noted that the spikes can be conical, cylindrical, prismatic, etc., and the present invention does not impose specific limitations.

[0039] The three-phase separator provided by the present invention comprises a first housing 2 housed within a second housing 3. The second housing 3 includes an inlet 31, an outlet 32, and an outlet 33. The first housing 2 is open at both ends. A bubble breaking device 1 is disposed at the end of the first housing 2 away from the inlet 31, allowing fluid to flow into the first housing 2 from the inlet 31 of the second housing 3 and pass through the bubble breaking device 1 at the end of the first housing 2 away from the inlet 31, thus removing bubbles from the fluid. By providing a cover 10 with multiple pores 101 and spikes 102 on the inner wall of the pores 101, bubbles in the fluid are effectively removed, preventing bubbles from carrying catalyst into the hydrogenation oil production process. At the same time, it breaks up oversized bubbles, preventing fine catalyst powder from being carried out by the gas phase and affecting the stable operation of the device.

[0040] Furthermore, multiple vents 101 are spaced apart on the cover 10, and the central axes of the multiple vents 101 are parallel to each other.

[0041] The shape of the vent 101 can be circular, elliptical, rectangular, triangular, rhomboid, etc. Preferably, the vent 101 is a circular vent.

[0042] Multiple vents 101 are evenly distributed on the cover 10. The extensions of the central axes of the multiple vents 101 can intersect at the same point, or they can be arranged as follows: Figure 3 They are shown to be parallel to each other.

[0043] The inner diameter of the pore 101 can be 2mm to 10mm, preferably 3mm to 8mm.

[0044] The total opening area of ​​the multiple air holes 101 accounts for 65% to 95% of the total inner wall area of ​​the cover 10. Preferably, the total opening area of ​​the multiple air holes 101 accounts for 75% to 90% of the total inner wall area of ​​the cover 10. The large proportion of the total opening area of ​​the multiple air holes 101 in the cover 10 is beneficial for bubbles to pass through the air holes 101 and be broken and detached.

[0045] The thickness of the cover 10 is relatively small, ranging from 3mm to 20mm. Preferably, the thickness of the cover 10 is 5mm to 10mm.

[0046] Further, the ratio of the opening diameter of the bubble breaking device 1 to the opening diameter of the end of the first housing 2 furthest from the feed inlet 31 is 1 to 1.5. Preferably, the ratio of the opening diameter of the bubble breaking device 1 to the opening diameter of the end of the first housing 2 furthest from the feed inlet 31 is 1 to 1.2. For example, in one embodiment, the bubble breaking device 1 is integrally connected to the end of the first housing 2 furthest from the feed inlet 31, and the ratio of the opening diameter of the bubble breaking device 1 to the opening diameter of the end of the first housing 2 furthest from the feed inlet 31 is 1.

[0047] The three-phase separator also includes a third housing 4, which is housed within the second housing 3. The third housing 4 has an opening at one end near the discharge port 32, and the first housing 2 is at least partially located within the third housing 4.

[0048] The outer wall of the first housing 2 and the inner wall of the third housing 4 have a first gap, and the outer wall of the third housing 4 and the inner wall of the second housing 3 have a second gap.

[0049] The third shell 4 is cylindrical and coaxially arranged with the first shell 2 and the second shell 3, with openings at both ends. The space between the first shell 2 and the third shell 4 forms a liquid-solid two-phase fluid region, and the space between the third shell 4 and the second shell 3 forms a liquid phase fluid region.

[0050] After passing through the bubble breaking device 1, the degassed fluid flows from the upper end of the first shell 2 into the space between the first shell 2 and the third shell 4. As the fluid falls, the solid phase gradually deposits in the space between the third shell 4 and the second shell 3, and gradually flows back into the reactor. Meanwhile, the liquid phase gradually rises in the space between the third shell 4 and the second shell 3 until it reaches the height of the discharge port 32, and flows out from the discharge port 32. The three-phase separator completes the separation of the gas, liquid, and solid phases.

[0051] The first housing 2 has multiple guide slits 23 at the end away from the feed inlet 31. The multiple guide slits 23 are distributed at intervals around the central axis of the first housing 2 so that the end of the first housing 2 away from the feed inlet 31 is comb-shaped.

[0052] It is understood that the length direction of each guide slit 23 can point to the central axis or be inclined to the central axis of the first housing 2, preferably inclined to the central axis of the first housing 2.

[0053] Specifically, the wall of the first shell 2 away from the feed inlet 31 is provided with multiple gaps to form a guide slit 23. The multiple guide slits 23 are distributed at intervals, so that the end of the first shell 2 away from the feed inlet 31 is comb-shaped, so that large-diameter bubbles in the fluid flow through the guide slits 23, coalesce and separate out, and prevent large-diameter bubbles from entering the liquid and solid two-phase fluid region.

[0054] The shape of the guide slit 23 can be rectangular, U-shaped, etc., and the present invention does not impose specific limitations. The width of the guide slit 23 is 2mm to 7mm, preferably 3mm to 5mm.

[0055] In one embodiment, the length direction of each guide slit 23 is parallel to the central axis of the first housing 2, so that the end of the first housing 2 away from the feed inlet 31 is in the shape of a straight comb.

[0056] In another embodiment, the length direction of each guide slit 23 is inclined to the central axis of the first housing 2, so that the end of the first housing 2 away from the feed inlet 31 is shaped like a serrated comb. In this embodiment, the fluid flows out obliquely from the guide slit 23, generating a rotational force. Under the action of the swirling flow, bubbles are more easily separated from the fluid.

[0057] Furthermore, in Figure 1 From a top-down view, the extension line of the guide slit 23 is inclined to the extension line of the line connecting the bottom end of the guide slit 23 and the axis of the first housing 2. The angle between the extension line of the guide slit 23 and the extension line connecting the bottom end of the guide slit 23 and the axis of the first housing 2 is 15° to 45°, ensuring that the fluid generates a large rotational force after flowing through the guide slit 23, thereby improving the bubble separation effect. The bottom end of the guide slit 23 is the end of the guide slit 23 closest to the feed inlet 31.

[0058] A guide plate 24 is provided around the outer wall of the first housing 2. The connection between the guide plate 24 and the outer wall of the first housing 2 is close to the guide slot 23. The inner diameter of the guide plate 24 gradually increases from the direction away from the feed inlet 31 to the direction closer to the feed inlet 31. (The setting of the guide plate is a relatively important point, while the crushing device for large bubbles is relatively easy to think of.)

[0059] like Figure 2 As shown, the guide plate 24 is arranged in a trumpet shape around the outer wall of the first housing 2. The upper end of the guide plate 24 is the small diameter end, and the lower end is the large diameter end. The small diameter end of the guide plate 24 is close to the bottom end of the guide slot 23.

[0060] By setting the guide plate 24, the fluid containing liquid phase, solid phase and small diameter bubbles flows out from the guide slot 23 and then flows along the guide plate 24, which increases the fluid's movement time on the guide plate 24 and improves the fluid's movement stroke. This is beneficial for more small diameter bubbles to be separated from the fluid and improves the bubble removal effect.

[0061] Furthermore, as the solid phase slides rapidly downward on the guide plate 24, a gas-liquid two-phase region is formed in the area between the guide plate 24 and the third shell 4. The solid phase content in this region is low, and small-diameter bubbles are more easily separated from the liquid phase.

[0062] Optionally, the angle between the guide plate 24 and the outer wall of the first housing 2 is 30° to 85°, and preferably, the angle between the guide plate 24 and the outer wall of the first housing 2 is 45° to 75°.

[0063] Furthermore, the third housing 4 is provided with a flow guide 41 at the end away from the feed inlet 31. The inner diameter of the flow guide 41 gradually increases from the direction close to the feed inlet 31 to the direction away from the feed inlet 31. The flow guide plate 24 is located in the space enclosed by the flow guide 41.

[0064] like Figure 1 As shown, the flow guide 41 is funnel-shaped, with its smaller diameter end located on the side closer to the feed inlet 31 and its larger diameter end located on the side farther from the feed inlet 31. The flow guide plate 24 is located within the space enclosed by the flow guide 41. Under the action of the inclined inner wall surface of the flow guide 41, the fluid flowing down from the flow guide plate 24 flows rapidly downward along the inner wall surface of the flow guide 41 and then flows out from the first gap between the first housing 2 and the third housing 4, which helps to improve the working efficiency of the three-phase separator.

[0065] Furthermore, the first housing 2 includes a body 21 and a first housing guide portion 22 coaxially connected. The first housing guide portion 22 is located at one end of the first housing 2 near the feed inlet 31, and the inner diameter of the first housing guide portion 22 gradually increases along its own axial direction towards the feed inlet 31.

[0066] The second housing 3 includes a second housing guide section 34, which is disposed between the feed inlet 31 and the discharge outlet 32. The inner diameter of the second housing guide section 34 gradually increases along the direction from the feed inlet 31 to the discharge outlet 32.

[0067] The outer wall surface of the first housing guide section 22 and the inner wall surface of the second housing guide section 34 are spaced apart.

[0068] like Figure 2 As shown, the body 21 of the first housing 2 is cylindrical, and the first housing guide part 22 is conical and connected to the end of the body 21 near the feed inlet 31. The first housing guide part 22 gradually expands outward in a trumpet shape. The fluid flowing in from the feed inlet 31 gradually converges to the body 21 and flows to the bubble crushing device 1 under the guidance of the first housing guide part 22.

[0069] The second housing 3 includes two cylindrical tubes and a second housing guide section 34 connected between the two tubes. The inner diameter of the upper tube is larger than that of the lower tube. The second housing guide section 34 is a tapered tube with a gradually narrowing inner diameter. Its large diameter end is connected to the upper tube and its small diameter end is connected to the lower tube.

[0070] The first shell guide section 22 is at least partially located within the space enclosed by the second shell guide section 34. Under the dual guiding action of the first shell guide section 22 and the second shell guide section 34, the fluid gradually converges to the body 21 and flows into the guide slot 23. (The liquid and the solid will not pass through 1, and the liquid level is at position 23. Structure 1 is only used to break up large bubbles and prevent excessive catalyst dust from being carried on the liquid film.)

[0071] The space between the first housing guide section 22 and the second housing 3 forms a liquid-solid two-phase region, and the space between the third housing 4 and the second housing 3 forms a liquid phase region.

[0072] Furthermore, the edge of the guide plate 24 near the feed inlet 31 has a third gap with the inner wall of the guide section 41, and the ratio of the width of the third gap to the width of the first gap is 0.9 to 1.3.

[0073] Specifically, the first housing 2, the second housing 3, and the third housing 4 are coaxially arranged. The distance between the body 21 of the first housing 2 and the inner wall of the third housing 4 in the horizontal direction is the width of the first gap. The distance between the lower edge of the guide plate 24 and the inner wall of the guide portion 41 in the horizontal direction is the width of the third gap.

[0074] Preferably, the ratio of the width of the third gap to the width of the first gap is 1 to 1.1.

[0075] In a specific embodiment, the working principle of the three-phase separator provided by the present invention is as follows: the gas-liquid-solid three-phase fluid flows upward from the reactor, and under the action of the first shell guide section 22, it gathers and rises along the length direction of the body 21 to the area where the guide slit 23 is located; large-diameter bubbles are coalesced under the action of the guide slit 23, and then detach from the fluid, rise to the bubble breaking device 1, the large-diameter bubbles are punctured by the spikes in the air hole 101, and the small-diameter bubbles move outward along the air hole 101, and finally all leave the three-phase separator from the air outlet 33; the liquid phase, solid phase and the remaining small-diameter bubbles flow out from the guide slit to the guide plate 24, the liquid phase is deflected under the action of the guide plate 24, so that the small bubbles gradually detach fully from the fluid; the solid phase flows downward along the guide plate 24 and returns to the reactor, the liquid level of the liquid phase gradually rises and flows out from the discharge port 32.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A three-phase separator, characterized in that, Includes a first housing, a second housing, and a bubble breaking device; The first housing is housed within the second housing, the second housing includes a feed inlet, a discharge outlet, and an air outlet, the first housing has openings at both ends, and the bubble breaking device is located at the end of the first housing away from the feed inlet; The feed inlet is located at the end of the second housing, and the discharge outlet is located on the side wall of the second housing and is relatively perpendicular to the central axis of the second housing; under normal operating conditions of the three-phase separator, the central axis of the second housing is parallel to the vertical direction, and the feed inlet is located at the bottom of the second housing; The first housing has a plurality of guide slits at the end away from the feed inlet. The plurality of guide slits are distributed at intervals around the central axis of the first housing, so that the end of the first housing away from the feed inlet is comb-shaped. The bubble breaking device includes a cover with an opening at one end. The cover has multiple air holes inside, and the inner wall of the air holes is constructed with spikes. The opening end of the cover faces the first housing.

2. The three-phase separator according to claim 1, characterized in that, The multiple air holes are spaced apart on the cover, and the central axes of the multiple air holes are parallel to each other.

3. The three-phase separator according to claim 1, characterized in that, The ratio of the opening diameter of the bubble breaking device to the opening diameter of the end of the first shell furthest from the feed inlet is 1 to 1.

5.

4. The three-phase separator according to claim 1, characterized in that, The three-phase separator further includes a third housing, which is housed within the second housing. The third housing has an opening at one end near the discharge port, and the first housing is at least partially located within the third housing. The outer wall of the first housing has a first gap with the inner wall of the third housing, and the outer wall of the third housing has a second gap with the inner wall of the second housing.

5. The three-phase separator according to claim 1, characterized in that, The length direction of each of the flow guide slots is inclined to the central axis of the first housing.

6. The three-phase separator according to claim 5, characterized in that, The angle between the extension line of the guide slot and the extension line of the connecting line between the bottom end of the guide slot and the axis of the first housing is 15°~45°.

7. The three-phase separator according to claim 4, characterized in that, The outer wall of the first housing is surrounded by a guide plate. The connection between the guide plate and the outer wall of the first housing is close to the guide slot. The inner diameter of the guide plate gradually increases from the direction away from the feed inlet to the direction close to the feed inlet.

8. The three-phase separator according to claim 7, characterized in that, The third housing has a flow guide at one end away from the feed inlet. The inner diameter of the flow guide gradually increases from the direction close to the feed inlet to the direction away from the feed inlet. The flow guide plate is located within the space enclosed by the flow guide.

9. The three-phase separator according to claim 8, characterized in that, The edge of the guide plate near the feed inlet has a third gap with the inner wall of the guide section, and the ratio of the width of the third gap to the width of the first gap is 0.9 to 1.3.

Images