Inner and outer ring parallel type reduced diameter synergistic gas-liquid separation channel

Abstract

This invention discloses a parallel inner and outer ring reduced-diameter efficiency gas-liquid separation channel, relating to the field of gas-liquid separation technology. It includes: an inner channel with a gas-liquid mixing inlet at one end and a gas flow outlet at the other; between the gas-liquid mixing inlet and the gas flow outlet, multiple arc-shaped gas-liquid separation sections of different radii are connected sequentially, with the radius of the arc-shaped gas-liquid separation sections decreasing from the gas-liquid mixing inlet to the gas flow outlet; and an outer channel arranged parallel to the inner channel on its outer side, with an inlet at one end and an outlet at the other. The middle section of the outer channel is connected to the multiple arc-shaped gas-liquid separation sections of different radii via multiple connecting pipes. This invention achieves gradually increasing centrifugal force and gas-liquid separation through multiple arc-shaped gas-liquid separation sections with decreasing radii, thereby separating larger droplets at larger radii and further separating finer droplets at smaller radii, thus improving the efficiency of gas-liquid separation.

Description

Technical Field

[0001] This invention relates to the field of gas-liquid separation technology, and more specifically to a parallel inner and outer ring narrow-diameter gas-liquid separation channel for enhanced efficiency. Background Technology

[0002] A gas-liquid separator is an industrial device used to separate liquid media from gas streams. It is widely used in petrochemical, natural gas processing, power generation, pharmaceutical, and environmental protection industries. Its core function is to separate liquid media from gas streams, ensuring stable operation of downstream equipment while recovering valuable liquid media. It primarily utilizes principles such as density difference between the gas and liquid phases, centrifugal separation, wire mesh filtration, or gravity sedimentation to achieve separation.

[0003] Existing gas-liquid separation equipment typically consists of a liquid-containing gas stream passing through a high-speed rotating loose mesh rotating bed or rotating disk. After the liquid collides with the solid, it is separated by centrifugal force. This structure is complex, the airflow is complex, strong turbulence is easily generated, and energy consumption is high. Summary of the Invention

[0004] In view of this, the present invention provides a parallel inner and outer ring narrow-diameter gas-liquid separation channel to solve one of the problems in the above-mentioned background technology, so as to achieve stable fluid flow, low energy loss, and improve the efficiency of gas-liquid separation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This invention provides a parallel inner and outer ring reduced-diameter enhanced gas-liquid separation channel, comprising: The inner channel has a gas-liquid mixing inlet at one end and a gas flow outlet at the other end. Between the gas-liquid mixing inlet and the gas flow outlet, there are multiple arc-shaped gas-liquid separation sections with different radii connected in sequence. The radii of the multiple arc-shaped gas-liquid separation sections decrease from the gas-liquid mixing inlet to the gas flow outlet. An outer channel is arranged in parallel outside the inner channel. One end of the outer channel is the inlet end and the other end is the outlet end. The middle section of the outer channel is connected to multiple arc-shaped gas-liquid separation sections of different radii through multiple connecting pipes so that the outer channel is connected to the inner channel. The inlet end of the outer channel is close to the gas-liquid mixing inlet end of the inner channel.

[0006] According to the parallel inner and outer ring reduced diameter enhanced gas-liquid separation channel provided by the present invention, the connecting pipe is inclined and the angle between the connecting pipe and the inner channel flowing downstream along the gas-liquid mixture is an acute angle.

[0007] According to the parallel inner and outer ring reduced diameter enhanced gas-liquid separation channel provided by the present invention, the inner wall of the arc-shaped gas-liquid separation section near the outer channel is an inclined wall structure, and the inner wall of the arc-shaped gas-liquid separation section is inclined towards the connecting pipe.

[0008] According to the parallel inner and outer ring reduced diameter enhanced gas-liquid separation channel provided by the present invention, the longitudinal cross-sectional area of ​​the outer channel is smaller than that of the inner channel.

[0009] According to the parallel inner and outer ring diameter-reducing gas-liquid separation channel provided by the present invention, the multiple arc-shaped gas-liquid separation sections with different radii include a first arc-shaped gas-liquid separation section, a second arc-shaped gas-liquid separation section and a third arc-shaped gas-liquid separation section connected in sequence. The radius of the first arc-shaped gas-liquid separation section is larger than the radius of the second arc-shaped gas-liquid separation section, and the radius of the second arc-shaped gas-liquid separation section is larger than the radius of the third arc-shaped gas-liquid separation section.

[0010] According to the parallel inner and outer ring reduced diameter enhanced gas-liquid separation channel provided by the present invention, the longitudinal cross-sectional area of ​​the inner cavity of the connecting pipe is smaller than the longitudinal cross-sectional area of ​​the outer channel.

[0011] According to the parallel inner and outer ring reduced diameter enhanced gas-liquid separation channel provided by the present invention, the fluid in the outer channel is gas.

[0012] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a parallel inner and outer ring narrow-diameter efficiency-enhancing gas-liquid separation channel. By dividing the gas-liquid mixing inlet end and the gas flow outlet end of the inner channel into multiple arc-shaped gas-liquid separation sections with different radii, and the radius of the arc-shaped gas-liquid separation sections decreases from the gas-liquid mixing inlet end to the gas flow outlet end, the droplets in the gas-liquid mixture receive gradually enhanced centrifugal force in the multiple arc-shaped gas-liquid separation sections with decreasing radii and undergo gas-liquid separation. Thus, larger droplets can be separated at larger radii, and smaller droplets can be further separated at smaller radii. This allows droplets of different sizes in the gas-liquid mixture to enter the outer channel through the connecting pipe in arc-shaped gas-liquid separation sections of different radii, and continue to move forward with the airflow in the outer channel, thereby realizing gas-liquid separation of the gas-liquid mixture and improving the efficiency of gas-liquid separation. The device of the present invention has a simple structure, stable fluid flow, and low energy loss. It can be used as a gas-liquid separation device or as a pretreatment device for gas-liquid separation to greatly reduce the load on downstream processing equipment. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present 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 only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 A schematic diagram of the inner and outer ring parallel narrow-diameter enhanced gas-liquid separation channel provided by the present invention; Figure 2 A schematic diagram of the inner and outer ring parallel narrow-diameter enhanced gas-liquid separation channel provided by the present invention from another perspective; Figure 3 Provided by the present invention Figure 2 A magnified view of part C; Figure 4 Provided by the present invention Figure 1 A cross-sectional view along the AA direction.

[0015] In the diagram: 1 is the inner channel; 2 is the outer channel; 3 is the gas-liquid mixing inlet; 4 is the gas flow outlet; 5 is the arc-shaped gas-liquid separation section; 51 is the first arc-shaped gas-liquid separation section; 52 is the second arc-shaped gas-liquid separation section; 53 is the third arc-shaped gas-liquid separation section; 6 is the inlet end; 7 is the outlet end; 8 is the connecting pipe; 9 is the inclined wall structure. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] See Figure 1-4 The present invention discloses a parallel inner and outer ring reduced diameter gas-liquid separation channel, comprising: an inner channel 1 and an outer channel 2.

[0018] One end of the inner channel 1 is the gas-liquid mixing inlet 3, and the other end of the inner channel 1 is the airflow outlet 4. Between the gas-liquid mixing inlet 3 and the airflow outlet 4, there are multiple arc-shaped gas-liquid separation sections 5 with different radii connected in sequence. The radii of the multiple arc-shaped gas-liquid separation sections 5 decrease from the gas-liquid mixing inlet 3 to the airflow outlet 4. The outer channel 2 is arranged in parallel outside the inner channel 1. One end of the outer channel 2 is the inlet end 6, and the other end is the outlet end 7. The middle section of the outer channel 2 is connected to multiple arc-shaped gas-liquid separation sections 5 with different radii through multiple connecting pipes 8 so that the outer channel 2 is connected to the inner channel 1. The inlet end 6 of the outer channel 2 is close to one end of the gas-liquid mixing inlet end 3 of the inner channel 1.

[0019] It should be noted that in this embodiment, the gas-liquid mixture is a gas flow containing small droplets. A power device is connected to the gas-liquid mixing inlet 3 of the inner channel 1. The power device is a device that pumps the gas flow containing small droplets, such as a gas pump. Because the gas-liquid mixing inlet 3 and the gas flow outlet 4 of the inner channel 1 are divided into multiple arc-shaped gas-liquid separation sections 5 with different radii in this invention, and the radius of the arc-shaped gas-liquid separation sections 5 decreases from the gas-liquid mixing inlet 3 to the gas flow outlet 4, the droplets in the gas-liquid mixture receive gradually increasing centrifugal force in the multiple arc-shaped gas-liquid separation sections 5 with decreasing radii and undergo gas-liquid separation. Due to the centrifugal force, larger droplets can be separated at larger radii, while smaller droplets... The radius allows for further separation of finer droplets, enabling droplets of different sizes in the gas-liquid mixture within the inner channel 1 to enter the outer channel 2 through the connecting pipe 8 via the arc-shaped gas-liquid separation section 5 with different radii. Finally, the dry gas containing the small droplets in the gas flow exits from the gas outlet end 4. The inlet end 6 of the outer channel 2 is also connected to a power device, which is also a gas pump, etc. Fluid is introduced into the outer channel 2 through the gas pump. When the gas flow containing the small droplets in the inner channel 1 is subjected to centrifugal force, the small droplets are separated and enter the outer channel 2 through the connecting pipe 8. The fluid in the outer channel 2 carries them out from the outlet end 7 of the outer channel 2, thereby achieving gas-liquid separation of the gas flow containing the small droplets.

[0020] The parallel inner and outer ring diameter-reducing efficiency gas-liquid separation channel of this invention integrates the principles of cyclone separation and Bernoulli's law. The longitudinal cross-sectional area of ​​the inner channel 1 remains unchanged, that is, the geometry of the inner channel 1 cross-section remains unchanged. Only the arc-shaped gas-liquid separation section 5 is set into multiple segments with different radii. Since the longitudinal cross-sectional area of ​​the inner channel 1 remains unchanged, the velocity of the gas-liquid mixture in the inner channel 1 remains unchanged. Therefore, by gradually reducing the radius of the inner channel 1, the centrifugal force can be changed, making it larger and larger, thereby separating smaller droplets and realizing multi-stage gas-liquid separation. Compared with the prior art, the efficiency of gas-liquid separation is improved. Moreover, the structure involved in this invention is simple, the fluid flow is stable, and the energy loss is low. It can be used as a gas-liquid separation device or as a pretreatment device for gas-liquid separation to greatly reduce the load on downstream processing equipment.

[0021] According to some embodiments of the present invention, the connecting pipe 8 is inclined, and the angle between the connecting pipe 8 and the inner channel 1 flowing downstream along the gas-liquid mixture is an acute angle. Specifically, as shown in the attached... Figure 3 The angle between the connecting pipe 8 and the inner channel 1 is α, where α is an acute angle. With this setting, the droplets separated by the airflow containing small droplets in the inner channel 1 under the action of centrifugal force have less resistance in flowing towards the connecting pipe 8, making it easier for the droplets to enter the outer channel 2 from the connecting pipe 8.

[0022] According to some embodiments of the present invention, the inner wall of the arc-shaped gas-liquid separation section 5 near the outer channel 2 is a sloping wall structure 9, and the inner wall of the arc-shaped gas-liquid separation section 5 is inclined towards the connecting pipe 8. With this configuration, by setting the inner wall of the inner channel 1 as a sloping wall structure 9, preferably an arc-shaped sloping wall structure, under the combined action of the sloping wall structure 9 and the airflow, droplets enter the outer channel 2 from the connecting pipe 8. For details, please refer to... Figure 3 The dashed arrow in the middle.

[0023] According to some embodiments of the present invention, the longitudinal cross-sectional area of ​​the outer channel 2 is smaller than that of the inner channel 1. This results in a higher fluid velocity in the outer channel 2 than in the inner channel 1. According to Bernoulli's law, the higher velocity and relatively lower pressure in the outer channel 2 cause the droplets in the gas flow containing small droplets in the inner channel 1 to acquire centrifugal force in the arc-shaped gas-liquid separation section 5, where gas-liquid separation occurs. This allows the droplets to enter the outer channel 2 from the connecting pipe 8 and flow forward with the fluid in the outer channel 2.

[0024] According to some embodiments provided by the present invention, preferably, the multi-segment arc gas-liquid separation sections 5 with different radii comprise a first arc gas-liquid separation section 51, a second arc gas-liquid separation section 52 and a third arc gas-liquid separation section 53 which are connected in sequence, wherein the radius of the first arc gas-liquid separation section 51 is larger than that of the second arc gas-liquid separation section 52, and the radius of the second arc gas-liquid separation section 52 is larger than that of the third arc gas-liquid separation section 53. Specifically, the radii of the first arc gas-liquid separation section 51, the second arc gas-liquid separation section 52 and the third arc gas-liquid separation section 53 are R1, R2 and R3 respectively, wherein R3 < R1 < R2, that is, the diameter of the arc gas-liquid separation section 5 of the inner channel 1 is gradually reduced, while the geometric shape of the channel cross-section of the outer channel 2 remains unchanged, so that the channel cross-section area thereof remains unchanged. This can keep the air flow stable and the flow velocity unchanged, and the radii of the arc gas-liquid separation sections 5 with different radii of the inner channel 1 are gradually reduced. According to the principle of centrifugal force, the centrifugal force applied to the air flow in the second arc gas-liquid separation section 52 is greater than that in the first arc gas-liquid separation section 51, and the centrifugal force applied in the third arc gas-liquid separation section 53 is greater than that in the second arc gas-liquid separation section 52. With such arrangement, after larger liquid droplets in the air flow are separated in the first arc gas-liquid separation section 51, relatively fine liquid droplets can be further separated under the greater centrifugal force in the second arc gas-liquid separation section 52, and even finer liquid droplets are further separated in the third arc gas-liquid separation section 53. Gas-liquid separation of the air flow containing small liquid droplets is carried out through classification, and the centrifugal force used for gas-liquid separation is gradually increased, which can further improve the gas-liquid separation effect of the air flow containing small liquid droplets. For liquid droplets of the same size, the gas-liquid separation effect is gradually increased from the first arc gas-liquid separation section 51 to the second arc gas-liquid separation section 52, and then to the third arc gas-liquid separation section 53. It is equivalent to step-by-step gas-liquid separation, and the separation intensity of the next stage is greater than that of the previous stage, thereby improving the effect and efficiency of gas-liquid separation.

[0025] In some other embodiments, the number of the arc gas-liquid separation sections 5 can be set to other numbers according to the requirements of separation effect and separation structure, which will not be repeated herein.

[0026] In this embodiment, preferably, the radians of the first arc gas-liquid separation section 51, the second arc gas-liquid separation section 52 and the third arc gas-liquid separation section 53 are all 90°; in some other embodiments, the radians of the first arc gas-liquid separation section 51, the second arc gas-liquid separation section 52 and the third arc gas-liquid separation section 53 can be specifically set according to actual requirements, which is not specifically limited herein.

[0027] According to the inner and outer ring parallel diameter-reducing efficiency-increasing gas-liquid separation channel provided by the present invention, the longitudinal cross-sectional area of the inner cavity of the communicating pipe 8 is smaller than the longitudinal cross-sectional area of the channel of the outer channel 2.

[0028] According to the parallel inner and outer ring reduced diameter enhanced gas-liquid separation channel provided by the present invention, the fluid in the outer channel 2 is gas. In other embodiments, the fluid in the outer channel 2 can also be liquid or gas-liquid mixture, as long as the pressure generated in the outer channel 2 is lower than the pressure in the inner channel 1 when it flows in the outer channel 2, so that the liquid droplets separated in the inner channel 1 can enter the outer channel 2 through the connecting pipe 8.

[0029] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A parallel inner and outer ring type narrow-diameter gas-liquid separation channel for enhanced efficiency, characterized in that, include: The inner channel has a gas-liquid mixing inlet at one end and a gas flow outlet at the other end. Between the gas-liquid mixing inlet and the gas flow outlet, there are multiple arc-shaped gas-liquid separation sections with different radii connected in sequence. The radii of the multiple arc-shaped gas-liquid separation sections decrease from the gas-liquid mixing inlet to the gas flow outlet. An outer channel is arranged in parallel outside the inner channel. One end of the outer channel is the inlet end and the other end is the outlet end. The middle section of the outer channel is connected to multiple arc-shaped gas-liquid separation sections of different radii through multiple connecting pipes so that the outer channel is connected to the inner channel. The inlet end of the outer channel is close to the gas-liquid mixing inlet end of the inner channel.

2. The parallel inner and outer ring diameter-reducing gas-liquid separation channel according to claim 1, characterized in that, The connecting pipe is inclined, and the angle between the connecting pipe and the inner channel flowing downstream along the gas-liquid mixture is an acute angle.

3. The parallel inner and outer ring diameter-reducing gas-liquid separation channel according to claim 1, characterized in that, The inner wall of the arc-shaped gas-liquid separation section near the outer channel is an inclined wall structure, and the inner wall of the arc-shaped gas-liquid separation section is inclined towards the connecting pipe.

4. The parallel inner and outer ring diameter-reducing gas-liquid separation channel according to claim 1, characterized in that, The cross-sectional area of ​​the outer channel is smaller than that of the inner channel.

5. The parallel inner and outer ring diameter-reducing gas-liquid separation channel according to claim 1, characterized in that, The multiple arc-shaped gas-liquid separation sections with different radii include a first arc-shaped gas-liquid separation section, a second arc-shaped gas-liquid separation section, and a third arc-shaped gas-liquid separation section connected in sequence. The radius of the first arc-shaped gas-liquid separation section is larger than the radius of the second arc-shaped gas-liquid separation section, and the radius of the second arc-shaped gas-liquid separation section is larger than the radius of the third arc-shaped gas-liquid separation section.

6. The parallel inner and outer ring diameter-reducing gas-liquid separation channel according to claim 1, characterized in that, The cross-sectional area of ​​the inner cavity of the connecting tube is smaller than the cross-sectional area of ​​the outer channel.

7. The parallel inner and outer ring diameter-reducing gas-liquid separation channel according to claim 1, characterized in that, The fluid in the outer channel is gas.

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