A gas-liquid mixture separation device

Abstract

The application provides a gas-liquid mixture separation device, which comprises a separation tank body, a first partition plate, an accelerator and a gas guide pipe; the first partition plate is fixed to the middle part of the separation tank body in the height direction, and the first partition plate divides the separation tank body into a first cavity close to the bottom of the separation tank body and a second cavity close to the top of the separation tank body; the accelerator comprises an outer sleeve and an inner sleeve, the outer sleeve is located in the first cavity, is fixedly connected with the first partition plate and extends towards the bottom of the separation tank body; the inner sleeve is fixedly connected with the first partition plate and is arranged in the outer sleeve to form an acceleration channel between the inner sleeve and the outer sleeve, the first end of the inner sleeve extends towards the top of the separation tank body through the first partition plate, the second end of the inner sleeve extends towards the bottom of the separation tank body, and the side wall of the outer sleeve is provided with a feeding port; the gas guide pipe is arranged in the second cavity and is arranged outside the inner sleeve, and the end of the gas guide pipe close to the first end of the inner sleeve is sealed. The application can reduce the cost of the device and improve the gas-liquid separation efficiency.

Description

Technical Field

[0001] This application relates to the field of gas-liquid separation technology, and in particular to a gas-liquid mixture separation device. Background Technology

[0002] A gas-liquid mixture separator is a commonly used separation device in mixture separation and purification processes. Taking water electrolysis for hydrogen production as an example, the hydrogen or oxygen output from the electrolyzer usually contains alkaline components from the electrolyte. Therefore, gas-liquid separation is required to improve the purity of the hydrogen or oxygen.

[0003] The gas-liquid mixture separation devices currently used in the industry include equipment corresponding to different stages of gas-liquid separation, and these devices are arranged in different locations and connected by pipelines.

[0004] Therefore, the current gas-liquid mixture separation device has a low degree of integration, the construction and assembly of the entire equipment is time-consuming, and it requires a large layout area, resulting in high costs for gas-liquid mixture separation. Utility Model Content

[0005] In view of this, this application provides a gas-liquid mixture separation device to at least solve the problems of low integration of gas-liquid mixture separation devices, time-consuming construction and assembly of the entire equipment, and large layout area required.

[0006] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0007] This application discloses a gas-liquid mixture separation device, which includes a separation tank body, a first baffle, an accelerator, and a gas guide pipe;

[0008] Along the height direction of the separation tank body, the first partition is fixed in the middle position inside the separation tank body. The first partition divides the separation tank body into a first cavity and a second cavity. The first cavity is close to the bottom of the separation tank body, and the second cavity is close to the top of the separation tank body.

[0009] The accelerator includes an outer sleeve and an inner sleeve. The outer sleeve is located inside the first cavity. A first end of the outer sleeve is fixedly connected to the first partition, and a second end extends toward the bottom of the separation tank body. The inner sleeve passes through the outer sleeve and is fixedly connected to the first partition. An acceleration channel is formed between the inner sleeve and the outer sleeve. A first end of the inner sleeve passes through the first partition and extends toward the top of the separation tank body, and a second end extends toward the bottom of the separation tank body. The side wall of the outer sleeve is provided with an inlet for the gas-liquid mixture to enter the acceleration channel.

[0010] The air guide tube is disposed inside the second cavity and sleeved outside the inner sleeve, and the end of the air guide tube near the first end of the inner sleeve is sealed.

[0011] Optionally, the accelerator further includes a guide plate; the guide plate is spirally wound and fixed within the acceleration channel.

[0012] Optionally, there are multiple accelerators, and the side of the separation tank body is provided with a receiving port for the gas-liquid mixture, and the feed port of each accelerator is connected to the receiving port.

[0013] Optionally, the multiple accelerators are staggered with each other.

[0014] Optionally, the gas-liquid mixture separation device further includes a second partition;

[0015] The second partition is disposed in the first cavity and fixedly connected to the separation tank body. The second partition and the first partition are spaced apart to form a buffer space. The feed inlet is located in the buffer space, and the receiving port is opened between the second partition and the first partition.

[0016] Optionally, the opening of the feed inlet is oriented towards the receiving port.

[0017] Optionally, the gas-liquid mixture separation device further includes a third partition;

[0018] The third partition is disposed in the second cavity and fixedly connected to the separation tank body. The third partition divides the second cavity into a first sub-cavity and a second sub-cavity, and the second sub-cavity is located between the first sub-cavity and the first cavity.

[0019] The air guide tube is fixedly connected to the third partition plate. The third partition plate has an air guide hole in the area outside the air guide tube, and the air guide hole connects the first sub-cavity and the second sub-cavity.

[0020] Optionally, the air guide holes are distributed in a circumferential array around the air guide tube, and the diameter of the air guide holes is 5mm to 10mm.

[0021] Optionally, the gas-liquid mixture separation device further includes a demister;

[0022] The demister is disposed in the first sub-cavity and is fixedly connected to the separation tank body.

[0023] Optionally, the demister includes a wire mesh demister, a baffle plate demister, or a filter element.

[0024] Compared with the prior art, the gas-liquid mixture separation device of this application has the following advantages:

[0025] The gas-liquid mixture separation device of this application integrates at least the primary and secondary separation processes of the gas-liquid mixture into a single device. In this gas-liquid separation device, the hardware structures corresponding to different process stages are set at different heights of the separation tank body. The accelerator in the device enables the connection between different process stages, which can save the floor space of the gas-liquid separation device, eliminate the need for long connecting pipelines, reduce the cost of the device, and the acceleration characteristics of the accelerator can also improve the efficiency of gas-liquid separation. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of a gas-liquid mixture separation device according to an embodiment of this application;

[0028] Figure 2 This is a three-dimensional structural schematic diagram of an accelerator according to an embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the internal structure of an accelerator according to an embodiment of this application;

[0030] Figure 4 This is an embodiment of the present application. Figure 3 A cross-sectional view of position AA;

[0031] Figure 5 This is an embodiment of the present application. Figure 1 A cross-sectional view of the BB position;

[0032] Figure 6 This is a schematic diagram of a third partition in an embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10. Separator tank body;

[0035] 101. First cavity; 102. Second cavity; 103. Receiving port;

[0036] 11. First partition;

[0037] 12. Accelerator; 121. Outer sleeve; 122. Inner sleeve; 123. Acceleration channel; 1211. Feed inlet;

[0038] 13. Air delivery tube;

[0039] 14. Second partition;

[0040] 15. Third partition;

[0041] 16. Demister. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] It should be understood that the phrase "in one embodiment" throughout the specification means that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0045] The following detailed description of a gas-liquid mixture separation device provided in this application is illustrated with specific embodiments.

[0046] The gas-liquid mixture separation device of this application embodiment is a device that integrates different process stages for separating gaseous and liquid substances in a gas-liquid mixture into one device. The device has a tower-type or furnace-type structure in its external structure. That is, after the gas-liquid mixture separation device is installed, the gas-liquid mixture is transported along the height direction of the gas-liquid mixture separation device to achieve separation of different process stages.

[0047] like Figure 1 As shown, the gas-liquid mixture separation device of this application embodiment specifically includes a separation tank body 10, a first partition 11, an accelerator 12, and a gas guide pipe 13.

[0048] The separator body 10 is a container for holding the gas-liquid mixture to be separated and the separated product in this gas-liquid mixture separation device. It also houses other components required for gas-liquid separation. The separator body 10 can be a cylindrical pressure vessel made of metal, with closed structures at both ends of its axis. One end has a drain port for discharging the separated liquid product, and the other end has an exhaust port for discharging the separated gaseous product. Understandably, during use, the separator body 10 is vertically installed and fixed, with the drain port lower than the exhaust port, closer to the ground.

[0049] Combination Figure 1 As illustrated, the first partition 11 can be a thin plate with the same shape and size as the cross-section of the inner cavity of the separator body 10, and it is fixed to the inner wall of the separator body 10. Along the height direction Z of the separator body 10, the first partition 11 can be welded and fixed to the middle position inside the separator body 10. This middle position refers to the part located between the top and bottom of the separator body 10, and it is not limited to being located in the exact center. The first partition 11 divides the space inside the separator body 10 into a first cavity 101 and a second cavity 102. The first cavity 101 is close to the bottom of the separator body 10, and the second cavity 102 is close to the top of the separator body 10. These two cavities can each correspond to different process stages of gas-liquid separation. Compared with conventional gas-liquid separation devices, the gas-liquid separation device of this application integrates different process stages into the same device, and different gas-liquid separation processes can be achieved with a single tank device.

[0050] like Figure 1 As shown, the basic structure of the accelerator 12 in the gas-liquid separation device of this application embodiment is also shown. The accelerator 12 can connect the first cavity 101 and the second cavity 102 to realize the continuous operation of different process stages. On the other hand, it can also accelerate the flow of the gas-liquid mixture entering the gas-liquid separation device.

[0051] Combination Figure 2 and Figure 3 As illustrated, the accelerator 12 in this embodiment specifically includes a thicker outer sleeve 121 and a thinner inner sleeve 122. The entire outer sleeve 121 is located within the first cavity 101. The first end (i.e., the upper end in the illustrated position) of the outer sleeve 122 is fixedly connected to the first partition 11 by welding, and the second end (i.e., the lower end in the illustrated position) extends towards the bottom of the separation tank body 10. (Refer to...) Figure 1 As illustrated, the second end of the outer sleeve 121 extends downwards by a certain length and does not need to be welded to the bottom of the separator body 10. The inner sleeve 122 passes through the outer sleeve 121 and can be welded to the first partition 11, forming a gap between the inner sleeve 122 and the outer sleeve 121. Figure 4The acceleration channel 123 is shown. Alternatively, in another fixing method, a connecting support can be provided between the outer wall of the inner sleeve 122 and the inner wall of the outer sleeve 121 to fix the inner sleeve 122 and the outer sleeve 121 together, thus eliminating the need to fix the inner sleeve 122 to the first partition 11. (Combined) Figure 1 As illustrated, the first end of the inner sleeve 122 (i.e., the upper end in the illustrated position) extends through the first partition 11 toward the top of the separator body 10, and the second end (i.e., the lower end in the illustrated position) extends toward the bottom of the separator body 10. (Refer to...) Figure 1 As illustrated, the first end of the inner sleeve 122 extends upwards for a certain length and does not need to be welded to the top of the separator body 10. The second end extends downwards for a length that does not exceed the lower end of the outer sleeve 121. The side wall of the outer sleeve 121 is provided with an inlet 1211 for the gas-liquid mixture to enter the acceleration channel 123. For example... Figure 4 As shown, in some accelerators 12, the axis of the feed inlet 1211 is parallel to the tangent of the inner wall of the outer sleeve 121, which is more conducive to the rotation of the gas-liquid mixture in the acceleration channel 123, and can make full use of the centrifugal force to achieve gas-liquid separation.

[0052] The following is combined with Figures 2 to 4 The accompanying drawings further illustrate the separation process of the gas-liquid mixture through accelerator 12: After the gas-liquid mixture is conveyed into the acceleration channel 123 of accelerator 12 through inlet 1211, the flow rate of the gas-liquid mixture increases as it passes through the narrow annular channel due to the narrow transmission space. The mist-like droplets entrained in the gas-liquid mixture, due to their higher density, are thrown against the inner wall of outer sleeve 121 by centrifugal force, condensing on the inner wall. Additionally, some of the mist-like droplets rub against the outer wall of inner sleeve 122, condensing thereas as well. The mist-like droplets entrained in the gas-liquid mixture condense on the sidewall of the acceleration channel 123 and flow downwards along the sidewall to the bottom of the first cavity 101. Because the gas in the gas-liquid mixture has a lower density, it enters the inner sleeve 122 from the second end and moves upwards along the inner sleeve 122, escaping from the first end. At this point, the gas-liquid mixture first undergoes primary separation of the gaseous and liquid phases via the accelerator 12. Furthermore, the acceleration channel in the accelerator 12 helps to increase the flow rate of the gas-liquid mixture, thereby improving the separation efficiency.

[0053] In some implementations, the volume of gas-liquid mixture to be separated per unit time and a high flow velocity (e.g., 20 m / s) can be used as design requirements. By using the theoretical knowledge of fluid mechanics, the structural parameters such as the thickness and length of the inner sleeve 122 and the outer sleeve 121, as well as the overlap length of the sleeved areas, can be determined, thereby enabling the accelerator 12 to have a high separation efficiency.

[0054] In addition, such as Figure 1 As shown, the gas-liquid separation device of this application embodiment further includes a gas guide pipe 13. The gas guide pipe 13 is located inside the second cavity 102 and sleeved outside the inner sleeve 122, and the end of the gas guide pipe 13 near the first end of the inner sleeve 122 is sealed. The gas guide pipe 13 can be fixed to the inner wall of the separation tank body 10 by connecting and supporting, or it can be fixed to the outer wall of the inner sleeve 122 by connecting and supporting. This application embodiment does not limit the installation and fixing method of the gas guide pipe 13.

[0055] The following is combined with Figure 1 The secondary separation process of the gas-liquid mixture after separation by accelerator 12 is further explained as follows: Before secondary separation, a certain amount of pure water can be injected into the second cavity 102, controlling the water level to be lower than the height of the first end of the inner sleeve 122. At this time, the gas guide tube 13 extends downward below the water level. When the gas in the gas-liquid mixture escapes from the first end of the inner sleeve 122, the gas enters the pure water under the guidance of the gas guide tube 13, and then releases bubbles after fully contacting the pure water. During this process, the pure water dissolves and absorbs the remaining impurity solution components in the gas from the primary separation product, resulting in higher gas purity. Therefore, the secondary separation process removes impurities from the gas from the primary separation product through washing.

[0056] Furthermore, during the aforementioned secondary separation process, since the gas also carries away some pure water, in this embodiment, a water inlet, a drain outlet, and a level gauge can be installed on the separation tank body 10 corresponding to the second cavity 102. The level gauge is used to monitor the volume of pure water in the second cavity 102. When the volume is low, pure water can be added through the water inlet. When the absorption of the impurity solution by the pure water in the second cavity 102 reaches saturation, the drain outlet can be opened to discharge wastewater. It should also be noted that the components in the gas-liquid separation device of this embodiment can be made of nickel-plated carbon steel. Gas-liquid separation devices made of this material have good corrosion resistance and can be used to separate corrosive gas-liquid mixtures.

[0057] Therefore, based on the above description of the structure and the principle of gas-liquid separation, it can be seen that the gas-liquid separation device of this application integrates at least the primary separation process and the secondary separation process of the gas-liquid mixture into a single device. In this gas-liquid separation device, the hardware structures corresponding to different process stages are set at different height positions of the separation tank body 10. The accelerator 12 in the device enables the connection between different process stages, which can save the floor space of the gas-liquid separation device, eliminate the need for lengthy connecting pipelines, reduce the cost of the device, and the acceleration characteristics of the accelerator 12 can also improve the efficiency of gas-liquid separation.

[0058] Optionally, in one embodiment, the accelerator 12 may further include a guide plate (not shown in the figure), which may be a spiral structure welded and fixed within the acceleration channel. For example, the guide plate spirally wraps around the outer wall of the inner sleeve 122 and is welded and fixed to the outer wall of the inner sleeve 122.

[0059] When the accelerator 12 is constructed with this shape, the trajectory of the gas-liquid mixture entering from the inlet 1211 and reaching the lower end of the inner sleeve 122 is as follows: Figure 2 The spiral trajectory shown is longer than that without a guide vane, which facilitates sufficient friction between the mist-like droplets in the gas-liquid mixture and the sidewall of the acceleration channel 123, causing them to condense on the sidewall. Therefore, this accelerator 12 can improve the cleanliness of gas-liquid separation in the first-stage separation process. It should be noted that those skilled in the art, based on fluid mechanics, can rationally design structural parameters such as the spiral structure of the guide vane, the thickness and length of the inner sleeve 122 and outer sleeve 121, and the overlap length of the sleeved areas, based on scientific calculations, so that the accelerator 12 achieves both high separation efficiency and superior separation quality. Therefore, this application embodiment does not specifically limit the spiral structure of the guide vane.

[0060] Optionally, in one embodiment, the gas-liquid separation device of this application may be equipped with multiple accelerators 12. Figure 5 It shows Figure 1 A simplified cross-sectional diagram at position BB. (Combined with...) Figure 1 and Figure 2 As shown in the diagram, the side of the separator body 10 is provided with a gas-liquid mixture receiving port 103. The receiving port 103 is provided with a flange joint, which can be connected to a gas-liquid mixture supply source other than the gas-liquid separation device. For example, when the gas-liquid mixture supply source is an electrolyzer for electrolytic hydrogen production, the gas-liquid mixture input to the receiving port 103 can be hydrogen or oxygen containing alkaline solution.

[0061] Reference Figure 1 and Figure 2As shown, the feed inlet 1211 of each accelerator 12 is connected to the receiving port 103. The connection between the receiving port 103 and each feed inlet 1211 can be achieved through a channel corresponding to each feed inlet 1211, or each feed inlet 1211 can be located within the same channel and connected to the receiving port 103. When the gas-liquid mixture enters the first cavity 102 from the receiving port 103, due to the large number of accelerators 12, the accelerators 12 at different locations can accelerate and separate the gas-liquid mixture at various points, further improving the overall separation efficiency.

[0062] Alternatively, in one implementation, such as Figure 5 As shown, when there are multiple accelerators 12, they are staggered and arranged with another accelerator 12 in the gap between two adjacent accelerators 12, and the feed inlet 1211 of the accelerator 12 faces the gap. This allows the accelerator 12 to capture the gas-liquid mixture more quickly, enabling the gas-liquid mixture to be accelerated and separated in a timely manner.

[0063] Alternatively, in one implementation, such as Figure 1 As shown, when there are multiple accelerators 12, the gas-liquid mixture separation device of this embodiment further includes a second partition 14. The second partition 14 is located inside the first cavity 101 and can be welded and fixed to the inner wall of the separation tank body 10. Furthermore, the second partition 14 has a through hole for the accelerators 12 to pass through. After the outer sleeve 121 of the accelerator 12 passes through the through hole, the outer wall of the outer sleeve 121 is sealed to the inner wall of the through hole. The second partition 14 and the first partition 11 are spaced apart, forming a buffer space between them. The feed inlets 1211 of each accelerator 12 are all located within the buffer space, and the receiving port 103 is located between the second partition 14 and the first partition 11. Thus, the second partition 14 can cause the gas-liquid mixture entering from the receiving port 103 to accumulate in the buffer space before being diverted to each accelerator 12, preventing the gas-liquid mixture from spreading disorderly within the first cavity 101 and ensuring that the gas-liquid mixture is accelerated and separated by the accelerators 12.

[0064] Alternatively, in one implementation, such as Figure 5 As shown, when there are multiple accelerators 12, the opening of each feed port 1211 faces the receiving port 103, so that the gas-liquid mixture can enter the accelerator 12 as quickly as possible, which can shorten the residence time of the gas-liquid mixture and improve the separation efficiency.

[0065] Alternatively, in one implementation, such as Figure 1As shown, the gas-liquid mixture separation device of this application embodiment further includes a third partition 15. The third partition 15 is located within the second cavity 102 and can be welded to the inner wall of the separation tank body 10. The third partition 15 divides the second cavity 102 into a first sub-cavity 1021 and a second sub-cavity 1022, with the second sub-cavity 1022 located between the first sub-cavity 1021 and the first cavity 101. At this time, the gas guide pipe 13 can be welded and fixed to the third partition 15. Besides separating the space, the third partition 15 also serves to fix and seal the end of the gas guide pipe 13. It should also be noted that, as... Figure 6 As shown, a plan view of the third partition 15 is displayed. The third partition 15 has an air guide hole 151 in the area outside the air guide tube 13. The air guide hole 151 connects the first sub-cavity 1021 and the second sub-cavity 1022.

[0066] Based on the description of the foregoing embodiments, it can be understood that the gas escaping from the pure water is initially located in the second sub-cavity 1022. As the gas in the second sub-cavity 1022 increases, under the action of gas pressure, the gas can continue to escape upward through the gas guide hole 151 for subsequent separation processes.

[0067] Alternatively, in one implementation, such as Figure 5 As shown, the air guide holes 151 are arranged in a circumferential array around the air guide tube 13. In this structure, in addition to serving a basic communication function, the air guide holes 151 also function like a sieve. After the escaping gas collides with the third partition 15, the gas escapes upward, and the liquid accumulates and drips back into the second sub-cavity 1022. It should be noted that when the diameter of the air guide holes 151 is too small, the upward diffusion efficiency of the gas is low, and the gas tends to accumulate below the third partition 15, affecting the gas-liquid separation efficiency of the device. When the diameter of the air guide holes 151 is too large, it is difficult to filter out the residual liquid droplets carried in the gas. Therefore, the diameter of the air guide holes 151 in this embodiment of the application is no less than 5 mm and no more than 10 mm. For example, the diameter of the air guide holes 151 can be 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm. When the diameter of the air guide hole 151 is within the aforementioned diameter range, it can ensure both high efficiency of gas-liquid separation and high purity of the gas after gas-liquid sieving.

[0068] Alternatively, in one implementation, such as Figure 1As shown, the gas-liquid mixture separation device of this application embodiment also includes a demister 16. The demister 16 is located in the first sub-cavity 1021 and can be welded and fixed to the inner wall of the separation tank body. Since the demister 16 is located in the first sub-cavity 1021 at the top of the device, it can remove the mist droplets in the gas before it is finally output. Therefore, the demister 16 is also a component corresponding to the three-stage separation of the gas-liquid mixture separation device of this application embodiment. The gas-liquid mixture separation device with the demister 16 has a higher degree of functional integration and can realize the integration of first-stage, second-stage, and third-stage separation. The specific demisting method can be selected according to the type of mist droplets, particle size, and gas flow rate to be removed. For example, the demister 16 can be one of a wire mesh demister, a baffle plate demister, or a filter element.

[0069] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0070] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A gas-liquid mixture separation device, characterized in that, The gas-liquid mixture separation device includes a separation tank body, a first baffle, an accelerator, and a gas guide pipe; Along the height direction of the separation tank body, the first partition is fixed in the middle position inside the separation tank body. The first partition divides the separation tank body into a first cavity and a second cavity. The first cavity is close to the bottom of the separation tank body, and the second cavity is close to the top of the separation tank body. The accelerator includes an outer sleeve and an inner sleeve. The outer sleeve is located inside the first cavity. A first end of the outer sleeve is fixedly connected to the first partition, and a second end extends toward the bottom of the separation tank body. The inner sleeve passes through the outer sleeve and is fixedly connected to the first partition. An acceleration channel is formed between the inner sleeve and the outer sleeve. A first end of the inner sleeve passes through the first partition and extends toward the top of the separation tank body, and a second end extends toward the bottom of the separation tank body. The side wall of the outer sleeve is provided with an inlet for the gas-liquid mixture to enter the acceleration channel. The air guide tube is disposed inside the second cavity and sleeved outside the inner sleeve, and the end of the air guide tube near the first end of the inner sleeve is sealed.

2. The gas-liquid mixture separation device according to claim 1, characterized in that, The accelerator also includes a deflector plate; The guide plate is spirally wound and fixed inside the acceleration channel.

3. The gas-liquid mixture separation device according to claim 1 or 2, characterized in that, The number of accelerators is multiple, and the side of the separation tank body is provided with a receiving port for the gas-liquid mixture. The feed port of each accelerator is connected to the receiving port.

4. The gas-liquid mixture separation device according to claim 3, characterized in that, The multiple accelerators are distributed in an alternating pattern.

5. The gas-liquid mixture separation device according to claim 3, characterized in that, The gas-liquid mixture separation device also includes a second partition; The second partition is disposed in the first cavity and fixedly connected to the separation tank body. The second partition and the first partition are spaced apart to form a buffer space. The feed inlet is located in the buffer space, and the receiving port is opened between the second partition and the first partition.

6. The gas-liquid mixture separation device according to claim 3, characterized in that, The opening of the feed inlet is oriented towards the receiving port.

7. The gas-liquid mixture separation device according to claim 1, characterized in that, The gas-liquid mixture separation device also includes a third partition; The third partition is disposed in the second cavity and fixedly connected to the separation tank body. The third partition divides the second cavity into a first sub-cavity and a second sub-cavity, and the second sub-cavity is located between the first sub-cavity and the first cavity. The air guide tube is fixedly connected to the third partition plate. The third partition plate has an air guide hole in the area outside the air guide tube, and the air guide hole connects the first sub-cavity and the second sub-cavity.

8. The gas-liquid mixture separation device according to claim 7, characterized in that, The air guide holes are arranged in a circumferential array around the air guide tube, and the diameter of the air guide holes is 5mm to 10mm.

9. The gas-liquid mixture separation device according to claim 7, characterized in that, The gas-liquid mixture separation device also includes a demister; The demister is disposed in the first sub-cavity and is fixedly connected to the separation tank body.

10. The gas-liquid mixture separation device according to claim 9, characterized in that, The demister includes a wire mesh demister, a baffle plate demister, or a filter element.

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