A stratified deceleration phase change separator

Abstract

This invention discloses a layered, decelerating phase change separator, comprising: a hollow cylinder with a first liquid outlet at the top and a second liquid outlet at the bottom; an inlet pipe extending through the cylinder; an outlet hole on the outer wall of the inlet pipe; multiple phase-separating structures installed in the inlet pipe and disposed within the cylinder; the multiple phase-separating structures are spaced apart along the length of the inlet pipe; each phase-separating structure includes a bend, and at least one bend in the phase-separating structure located at the bottom of the cylinder has a through hole penetrating the phase-separating structure; a guide pipe connected to the phase-separating structure; the guide pipe extends downward to the bottom of the cylinder, and its two ends are respectively connected to the through hole and the second liquid outlet. The layered, decelerating phase change separator according to this invention can achieve efficient phase separation of the phase change absorbent.

Description

Technical Field

[0001] This invention relates to the field of liquid phase separation equipment technology, and in particular to a stratified decreasing-rate phase change separator. Background Technology

[0002] Carbon dioxide emissions leading to global warming have become one of the world's most recognized environmental problems. Therefore, reducing carbon dioxide emissions from industries such as thermal power generation is crucial for mitigating global warming. Carbon capture, utilization, and storage (CCUS) is a key technology for reducing carbon dioxide emissions and can provide important technical support for achieving carbon neutrality. Organic amine chemical absorption is a rapidly developing CCUS technology, but the regeneration energy consumption of the absorbent in traditional organic amine absorption processes is as high as 3.7–4.0 GJ / t. To reduce the regeneration energy consumption after organic amine absorbs carbon dioxide, phase change absorbents have emerged with significant energy-saving potential. After absorbing carbon dioxide, these absorbents change from a homogeneous solution to an immiscible liquid-liquid two-phase solution. By separating and enriching the phase that absorbed carbon dioxide, the amount of regenerated liquid in the desorption tower can be significantly reduced, thereby lowering the regeneration energy consumption to 1.8–2.5 GJ / t, achieving the goal of reducing regeneration energy consumption.

[0003] The contradiction between fluid velocity, turbulent agitation, and large tank diameter in conventional phase separation tanks prevents them from efficiently separating phase change absorbents with large circulation volumes and continuous operation. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a layered, decelerating phase change separator that can achieve efficient phase separation of the phase change absorbent.

[0005] A layered deceleration phase change separator according to an embodiment of the present invention includes:

[0006] The cylinder is hollow inside, with a first liquid outlet at the top and a second liquid outlet at the bottom.

[0007] An inlet pipe is inserted through the cylinder; an outlet hole is provided on the outer wall of the inlet pipe.

[0008] Multiple phase-separating structures are installed in the liquid inlet pipe and disposed in the cylinder; the multiple phase-separating structures are spaced apart along the length direction of the liquid inlet pipe; each phase-separating structure includes a bend, and at least one phase-separating structure located at the bottom of the cylinder has a through hole in the bend, the through hole penetrating the phase-separating structure;

[0009] A drainage tube is connected to the phase separation structure; the drainage tube extends downward to the bottom of the cylinder, and both ends of the drainage tube are connected to the through hole and the second liquid outlet, respectively.

[0010] The layered deceleration phase change separator according to embodiments of the present invention has at least the following beneficial effects:

[0011] By setting multiple phase-separating structures spaced vertically, the non-uniform, vertical alternation of media in a conventional separation tank can be transformed into uniform, horizontal alternation, achieving an overall reduction in the movement speed of the media alternation process. The phase-separating structures reduce the impact velocity of the media after entering the phase change separator, lowering the mixing intensity of the media within the separator and facilitating the separation of light and heavy media. Simultaneously, the relationship between the vertical movement of light and heavy media separation and the movement of media alternation is transformed from an inverse relationship to a vertical relationship, weakening the shear force during relative movement of the media. The small spacing between the phase-separating structures divides the conventionally high-spacing separation area in the separation tank into short-spacing separation areas, shortening the layer spacing and reducing the mutual mixing interference of light and heavy media under long layer spacing. Thus, the phase change separator of this embodiment can achieve efficient separation with the advantages of short layer spacing and slow alternation speed.

[0012] According to some embodiments of the present invention, the distance between the phase separation structure and the inner wall of the cylinder gradually increases from bottom to top along the vertical direction.

[0013] According to some embodiments of the present invention, a plurality of liquid outlet holes are provided, and the plurality of liquid outlet holes are spaced apart along the length direction of the liquid inlet pipe; there is at least one liquid outlet hole between adjacent phase separation structures.

[0014] According to some embodiments of the present invention, a dispersion structure is provided at the liquid outlet.

[0015] According to some embodiments of the present invention, the bend is lower than the connection between the phase separation structure and the inlet pipe, and the outer periphery of the phase separation structure is not lower than the connection between the phase separation structure and the inlet pipe.

[0016] According to some embodiments of the present invention, the phase-splitting structure includes a first ring segment and a second ring segment, and the corner portion is formed at the connection between the first ring segment and the second ring segment; the ratio of the width of the first ring segment to the width of the second ring segment is 1 / 1 to 4 / 1.

[0017] According to some embodiments of the present invention, a cleaning component is further included, which is movably and vertically mounted within the inlet pipe, and the cleaning component is connected to a drive device that drives it to rise vertically and / or fall.

[0018] According to some embodiments of the present invention, a first retaining ring is provided at the top end of the inlet pipe, and the cleaning component can cooperate with the first retaining ring to seal the top end of the inlet pipe.

[0019] According to some embodiments of the present invention, the cleaning assembly includes a first component, a second component, and a connector, wherein the first component is disposed above the second component, and the first component and the second component are connected by the connector; the first component is connected to the driving device, and the first component can cooperate with the first retaining ring to seal the top end of the inlet pipe.

[0020] According to some embodiments of the present invention, the connector is an elastic element.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the dispersed structure according to an embodiment of the present invention;

[0025] Figure 3 for Figure 1 Top view of the split-phase structure;

[0026] Figure 4 for Figure 1 A schematic diagram of the structure of the cleaning component;

[0027] Figure 5 This is a schematic diagram of the structure of the cleaning component with the top of the liquid inlet tube sealed according to an embodiment of the present invention.

[0028] Icon labels:

[0029] Cylinder 100, first liquid outlet 110, second liquid outlet 120, inner cylinder 130, annular baffle 131, outer cylinder 140;

[0030] Liquid inlet pipe 200, liquid outlet hole 210, dispersion structure 220, first retaining ring 230, second retaining ring 240;

[0031] Phase separation structure 300, corner portion 310, through hole 311, first ring segment 320, second ring segment 330;

[0032] 400mm drainage tube;

[0033] Cleaning component 500, first component 510, second component 520, connector 530, drive unit 540. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0036] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0037] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0038] Reference Figures 1 to 5 An embodiment of the present invention provides a layered, decelerating phase change separator, comprising a cylindrical body 100, an inlet pipe 200, a phase separation structure 300, and a drain pipe 400. The cylindrical body 100 is hollow inside, with a first outlet 110 connected to the top and a second outlet 120 connected to the bottom. The inlet pipe 200 passes through the cylindrical body 100, and an outlet hole 210 is provided on the outer wall of the inlet pipe 200. (See reference...) Figure 1 As shown, the cylinder 100 includes an inner cylinder 130 and an outer cylinder 140. The outer cylinder 140 covers the top of the inner cylinder 130. A first liquid outlet 110 is located in the outer cylinder 140, and a second liquid outlet 120 is located in the inner cylinder 130. The top of the inner cylinder 130 is open, and the liquid inlet pipe 200, the phase separation structure 300, and the drainage pipe 400 are all installed in the inner cylinder 130.

[0039] In this embodiment, a liquid supply device is connected to the bottom end of the liquid inlet pipe 200; multiple liquid outlet holes 210 are provided on the outer periphery of the liquid inlet pipe 200, and the multiple liquid outlet holes 210 are arranged around the outer periphery of the liquid inlet pipe 200. For example, multiple liquid outlet holes 210 are evenly spaced on the outer periphery of the liquid inlet pipe 200 on the same horizontal plane, such as four, five, or six, and the specific number can be set according to actual needs; if multiple liquid outlet holes 210 located on the same horizontal plane are defined as a layer, then multiple layers of liquid outlet holes 210 are provided along the length direction of the liquid inlet pipe 200, and multiple liquid outlet holes 210 in the same layer are evenly spaced around the outer periphery of the liquid inlet pipe 200. The phase separation structure 300 is installed on the liquid inlet pipe 200 and is located inside the cylinder 100; there are multiple phase separation structures 300, and the multiple phase separation structures 300 are spaced apart along the length direction of the liquid inlet pipe 200, and there is at least one layer of liquid outlet holes 210 between adjacent phase separation structures 300. It is understandable that if only one outlet hole 210 is provided on the outer periphery of the inlet pipe 200 on the same horizontal plane, then there is at least one outlet hole 210 between adjacent phase separation structures 300.

[0040] It is important to understand that, along the vertical direction, the multiple phase-splitting structures 300 are not necessarily evenly spaced, but the spacing between adjacent phase-splitting structures 300 should meet the following conditions:

[0041] If, based on the characteristics of the medium, the time for phase separation determined by experiments is t1, and the time for the medium to flow between adjacent phase separation structures 300 is t2, then t1 should be less than t2; t2 is obtained using the following formula:

[0042]

[0043] Where R is the radius of the inner cylinder 130, and d is... Figure 1 The diameter of the inlet pipe 200, r is the radius of the phase separation structure 300, and V is the unit medium throughput of the phase change separator in this embodiment, in meters. 3 / s; n is the number of spacings between multiple phase-splitting structures 300. Generally, n = N-1, where N is the number of phase-splitting structures 300; h is the spacing between adjacent phase-splitting structures 300 in the vertical direction, where H = nh, that is, H is the overall height of multiple h.

[0044] Furthermore, for media without solid impurities, i.e., media consisting only of immiscible liquid-liquid two-phase solutions, the inlet pipe 200 is generally made of ceramic tube. Multiple phase-separated structures 300 are typically evenly spaced vertically, and only one layer of outlet holes 210 is required between adjacent phase-separated structures 300. Using ceramic tubes effectively reduces pressure drop loss, and because the medium does not contain solid impurities, it is less likely to damage the ceramic tube.

[0045] For media containing solid impurities, the inlet pipe 200 is generally made of stainless steel, which prevents the solid impurities from damaging the inlet pipe 200. For this type of media, the multiple phase-separating structures 300 can be arranged either uniformly or unevenly along the vertical direction. If unevenly spaced vertically, the spacing between adjacent phase-separating structures 300 at the bottom of the cylinder 100 can be increased, while the spacing between adjacent phase-separating structures 300 at the top of the cylinder 100 can be decreased. Furthermore, for media containing solid impurities, two to five layers of outlet holes 210 are generally provided between adjacent phase-separating structures 300, and a dispersion structure 220 is provided at each outlet hole 210.

[0046] In some embodiments of the present invention, reference is made to... Figure 2 As shown, the dispersion structure 220 includes a nozzle and a dispersing element. The nozzle is aligned with the liquid outlet 210. The dispersing element has a spherical structure and a concave surface facing the nozzle. The dispersing element can block and disperse the medium ejected from the nozzle, thereby preventing the solid medium ejected from the nozzle from damaging the phase separation structure 300. At the same time, by blocking the medium, the dispersing element can reduce the distance of the medium ejected, thereby facilitating the flow of the medium along the phase separation structure 300 for phase separation.

[0047] It is conceivable that a dispersion structure 220 can also be provided at the liquid outlet 210 for media without solid impurities. The phase separation structure 300 can be movably and vertically installed on the liquid inlet pipe 200, and the relative position of the phase separation structure 300 and the liquid inlet pipe 200 can be fixed by a connecting structure, thereby enabling the phase change separator of this embodiment to be applicable to different media. For example, the connecting structure can be a clamp or similar structure. Correspondingly, if the phase change separator of this embodiment is only used to separate the same medium, the phase separation structure 300 can be fixedly connected to the liquid inlet pipe 200 to reduce production costs. The fixed connection can be achieved by welding or by fasteners.

[0048] In some embodiments of the present invention, reference is made to... Figure 1 , Figure 3 As shown, the phase separation structure 300 includes a bend portion 310. At least one bend portion 310 of the phase separation structure 300 located at the bottom of the cylinder 100 is provided with a through hole 311. The through hole 311 penetrates the phase separation structure 300 in a vertical direction. The drainage pipe 400 is connected to the phase separation structure 300. The drainage pipe 400 extends downward in a vertical direction to the bottom of the cylinder 100, but the bottom of the drainage pipe 400 does not contact the cylinder 100. The two ends of the drainage pipe 400 are respectively connected to the through hole 311 and the second liquid outlet 120.

[0049] In some embodiments of the present invention, reference is made to... Figure 1As shown, from bottom to top, 1 / 4 to 3 / 5 of the phase-separation structures 300 along the vertical direction are provided with through holes 311. For example, if there are twelve phase-separation structures 300 inside the cylinder 100, then three to seven phase-separation structures 300 at the bottom of the cylinder 100 are provided with through holes 311, that is, three to seven phase-separation structures 300 are all connected to drainage pipes 400.

[0050] It is important to understand that the bottommost phase-separating structure 300 of the cylinder 100 has the most through holes 311, while the number of through holes 311 decreases as the phase-separating structures 300 move upwards. For ease of understanding, this embodiment defines the bottommost phase-separating structure 300 of the cylinder 100 as the first phase-separating plate, and then sequentially upwards as the second phase-separating plate, the third phase-separating plate, and so on, up to the twelfth phase-separating plate; for example... Figure 1 The system contains twelve phase-separated structures 300, with the bottom seven phase-separated structures 300 equipped with through holes 311. This means that all phase-separated sections from the first to the seventh are equipped with through holes 311. If the seventh phase-separated section has only one through hole 311, the drainage pipe 400 connected to it must pass downwards through the sixth phase-separated section to the first phase-separated section to reach the bottom of the cylinder 100. Therefore, the sixth phase-separated section requires two through holes 311, one of which is for the drainage pipe 400 connected to the seventh phase-separated section to pass through. Correspondingly, the fifth phase-separated section requires three through holes 311, the fourth phase-separated section requires four through holes 311, and so on, with the first phase-separated section requiring seven through holes 311. The purpose of providing the through holes 311 and the drainage pipe 400 is to better guide the heavier phase in the medium to the cylinder 100 and discharge it through the second outlet 120.

[0051] Since the medium enters the cylinder 100 from the bottom up, especially the medium containing solid impurities, when the inlet pipe 200 is filled with the medium, most of the solid impurities will enter the phase separation structure 300 at the bottom of the cylinder 100. Therefore, a through hole 311 and a drain pipe 400 are provided in the phase separation structure 300 at the bottom of the cylinder 100 to connect with the second outlet 120, so as to quickly discharge the solid impurities to the second outlet 120, thereby improving the phase separation efficiency.

[0052] It should be noted that although some drainage tubes 400 need to pass through multiple phase separation structures 300, it is still necessary to ensure that the media between adjacent phase separation structures 300 cannot be mixed through the through hole 311. For example, it must be ensured that the media between the sixth phase separation and the seventh phase separation will not be mixed with the media between the fifth phase separation and the sixth phase separation through the through hole 311 of the sixth phase separation; that is, the drainage tube 400 connected to the seventh phase separation should be sealed to one of the through holes 311 of the sixth phase separation.

[0053] In some specific embodiments of the present invention, the drainage tube 400 is generally made of a rigid material, such as stainless steel or hard plastic. A sealing sleeve can be provided at the through hole 311 so that the drainage tube 400 passes through the sealing sleeve and is sealed to the sealing sleeve. When the spacing between adjacent phase-splitting structures 300 is adjusted, the drainage tube 400 and the sealing sleeve can slide relative to each other, but can still maintain a seal. The drainage tube 400 can also be made of a flexible material, such as a telescopic tube or a corrugated tube. The drainage tube 400 using the flexible material solution is a short tube, and each drainage tube 400 is only used to connect the through hole 311 between adjacent phase-splitting structures 300. For example, only one drainage tube 400 is connected between the seventh phase-splitting segment and the sixth phase-splitting segment, then two drainage tubes 400 are connected between the sixth phase-splitting segment and the fifth phase-splitting segment, and three drainage tubes 400 are connected between the fifth phase-splitting segment and the fourth phase-splitting segment, etc. The drainage tube 400, made of flexible material, can be lengthened or shortened accordingly when the spacing between adjacent phase structures 300 is adjusted.

[0054] In some specific embodiments of the present invention, the inner diameter of the drainage pipe 400 is 1 / 2 to 1 times the inner diameter of the inlet pipe 200. The specific inner diameter can be adjusted according to the specific conditions of the medium. The medium inside the pipe is subject to friction from the inner wall of the pipe and viscous resistance. The smaller the diameter of the drainage pipe 400, the greater the resistance experienced by the medium. Therefore, the inner diameter of the drainage pipe 400 should ensure smooth flow of the medium. The same applies to the inlet pipe 200.

[0055] In some embodiments of the present invention, the distance between the phase separation structure 300 and the inner wall of the cylinder 100 gradually increases from bottom to top along the vertical direction. Specifically, refer to... Figure 1 As shown, the distance between the phase separation structure 300 and the inner wall of the cylinder 100 mainly refers to the distance between the outer periphery of the phase separation structure 300 and the inner wall of the inner cylinder 130, that is... Figure 1 The spacing L in the middle. The spacing L can increase linearly from bottom to top or increase in a stepwise manner, but a stepwise increase is generally used. For ease of understanding, the spacing between the outer edge of the first photosheet and the inner wall of the cylinder 100 is defined as L1, and then successively defined as L2, L3, etc., upwards. Figure 1 Taking the 12 phase separation structures 300 as an example, L1 is approximately 0, L2 to L5 are 5cm to 20cm, L6 to L8 = 2L2 to L5, and L9 to L12 = 3L2 to L5. Since the lighter phase in the medium between each adjacent phase separation structure 300 is discharged upward through the gap between the outer edge of the phase separation structure 300 and the inner wall of the inner cylinder 130, the flow rate of the medium will be greater as it goes higher. Therefore, the gap between the outer edge of the phase separation structure 300 and the inner wall of the inner cylinder 130 must also be increased accordingly to ensure smooth flow of the medium and a relatively uniform upward speed of the medium.

[0056] In some embodiments of the present invention, an annular baffle 131 is provided at the top of the inner cylinder 130. The annular baffle 131 is installed on the inner sidewall of the inner cylinder 130 and extends toward the center of the inner cylinder 130. (Refer to...) Figure 1 As shown, the inner diameter of the inner cylinder 130 is R, and the width of the annular baffle 131 is 1 / 4R to 1 / 2R. The annular baffle 131 blocks the medium between the outer edge of the phase-separating structure 300 and the inner wall of the inner cylinder 130, forcing the medium to change its flow direction, thereby slowing down the flow velocity and improving the phase separation effect. Without the annular baffle 131, the medium between the outer edge of the phase-separating structure 300 and the inner wall of the inner cylinder 130 would flow vertically upwards, directly impacting the top of the outer cylinder 140 and causing turbulence. This would obstruct the continued upward flow of the medium, affecting not only the rapid outflow of the medium but also indirectly impacting the phase separation effect.

[0057] In some embodiments of the present invention, the bend 310 is lower than the connection between the phase-separating structure 300 and the inlet pipe 200, and the outer peripheral side of the phase-separating structure 300 is not lower than the connection between the phase-separating structure 300 and the inlet pipe 200. Specifically, refer to... Figure 1 As shown, if the bend 310 is higher than the connection between the phase-separating structure 300 and the inlet pipe 200, solid impurities or heavy media in the medium will have difficulty entering the bend 310, leading to their accumulation in the inlet pipe 200 and affecting the inlet efficiency, while also hindering the phase separation effect. Similarly, if the bend 310 is flush with the connection between the phase-separating structure 300 and the inlet pipe 200, the phase separation effect will also be affected. Likewise, if the outer periphery of the phase-separating structure 300 is lower than the connection between the phase-separating structure 300 and the inlet pipe 200, the medium will flow out too quickly, also affecting the phase separation effect.

[0058] In some embodiments of the present invention, reference is made to... Figure 1 , Figure 3 As shown, the phase separation structure 300 includes a first ring segment 320 and a second ring segment 330, with a bend 310 formed at the connection between the first ring segment 320 and the second ring segment 330. The ratio of the width of the first ring segment 320 to the width of the second ring segment 330 is 1 / 1 to 4 / 1. Specifically, the first ring segment 320 is inclined downwards, and the second ring segment 330 is inclined upwards. Phase separation of the medium is mainly completed in the first ring segment 320; therefore, the width of the first ring segment 320 is generally not less than the width of the second ring segment 330. The widths of the first ring segment 320 and the second ring segment 330 can be designed according to actual conditions.

[0059] In some embodiments of the present invention, a cleaning component 500 is further included. The cleaning component 500 is movably and vertically mounted within the liquid inlet pipe 200. The cleaning component 500 is connected to a drive device 540 that drives it to rise vertically and / or fall. Specifically, the drive device 540 is generally a hinge or cable structure, and the drive device 540 can only drive the cleaning component 500 to rise; the cleaning component 500 descends by its own gravity.

[0060] It is conceivable that the drive device 540 could also be a lead screw, which rotates forward or backward to drive the cleaning component 500 to rise or fall. However, since the inlet pipe 200 itself is quite long, if a lead screw is used, the excessive length of the lead screw would result in excessive torque in the lead screw transmission, which would not only increase manufacturing costs, but also affect the inlet area of ​​the inlet pipe 200 if the lead screw is placed inside the inlet pipe 200. Therefore, a hinge or cable is generally used.

[0061] In some embodiments of the present invention, a first retaining ring 230 is provided at the top end of the inlet pipe 200, and the cleaning assembly 500 can cooperate with the first retaining ring 230 to seal the top end of the inlet pipe 200. Specifically, refer to... Figure 4 , Figure 5 As shown, a second retaining ring 240 is also provided at the bottom of the inlet pipe 200. The first retaining ring 230 and the second retaining ring 240 are used to limit the end of the stroke of the cleaning component 500. During the phase separation operation, the top of the inlet pipe 200 must be sealed. If it is not sealed, the medium entering the inlet pipe 200 will directly enter the first outlet 110 through the top of the inlet pipe 200, thus making it impossible to achieve phase separation of the medium.

[0062] In some embodiments of the present invention, the cleaning assembly 500 includes a first component 510, a second component 520, and a connector 530. The first component 510 is disposed above the second component 520, and the first component 510 and the second component 520 are connected by the connector 530. The first component 510 is connected to the driving device 540, and the first component 510 can cooperate with the first retaining ring 230 to seal the top end of the liquid inlet pipe 200. Specifically, refer to... Figure 4 , Figure 5 As shown, the connector 530 is an elastic element. The diameter of the first component 510 is smaller than the diameter of the second component 520. The first component 510 can be embedded in the first retaining ring 230 to seal the top of the inlet pipe 200. The first retaining ring 230 can abut against the second component 520 to limit the end point of the travel of the cleaning assembly 500. The outer peripheral wall of the second component 520 is provided with bristles. During the vertical movement of the cleaning assembly 500 along the inlet pipe 200, it can clean the inner wall of the inlet pipe 200, thereby preventing impurities in the medium from clogging the outlet hole 210 on the inlet pipe 200. The connector 530 is an elastic element, such as a spring.

[0063] In some specific embodiments of the present invention, in order to facilitate the first component 510 entering the first retaining ring 230, the bottom of the first retaining ring 230 is provided with a chamfer.

[0064] The working process of the cleaning component 500 in this embodiment is as follows:

[0065] 1. The second component 520 rests on the second retaining ring 240, and the connecting piece 530 is in a retracted state; the driving device 540 drives the first component 510 to rise, causing the connecting piece 530 to partially stretch, and then drives the second component 520 to rise; when the cleaning component 500 rises to the position where the second component 520 abuts against the first retaining ring 230, the driving device 540 continues to pull the first component 510 up a distance, so that the first component 510 enters the position that matches the first retaining ring 230, so as to seal the top of the liquid inlet pipe 200;

[0066] As the cleaning component 500 rises, the bristles on the outer periphery of the second component 520 can perform preliminary cleaning of the inner wall of the liquid inlet pipe 200.

[0067] 2. A medium is introduced into the inlet pipe 200 to start the phase separation operation of the phase change separator in this embodiment;

[0068] 3. Disconnect the power to the drive device 540. At this time, the cleaning component 500 will descend under its own gravity until the second component 520 falls to the position of the first retaining ring 230. During the descent of the cleaning component 500, the bristles on the outer periphery of the second component 520 can also clean the inner wall of the liquid inlet pipe 200.

[0069] 4. Repeat step one.

[0070] It is important to understand that the first component 510 and the second component 520 are connected by multiple connectors 530, which are evenly spaced around the circumference. However, there is still a gap between the first component 510 and the second component 520, allowing the medium to pass through between them. When the cleaning assembly 500 descends under its own gravity, the connectors 530 first return to their contracted state under their own elastic force. During this process, the connectors 530 disengage the first component 510 from the first retaining ring 230, allowing the medium in the inlet pipe 200 to directly enter the first outlet 110 through the top of the inlet pipe 200. At this point, the phase change separator loses its phase separation function.

[0071] According to an embodiment of the present invention, the phase change separator with reduced speed, by setting multiple phase-separating structures 300 spaced apart in the vertical direction, can transform the non-uniform, vertical alternation motion of the medium in a conventional separation tank into a uniform, horizontal alternation motion, thereby achieving an overall reduction in the movement speed of the medium alternation process. The phase-separating structures 300 reduce the impact velocity of the medium after entering the phase change separator, reduce the mixing intensity of the medium in the phase change separator, and facilitate the separation of light and heavy media. At the same time, the vertical movement of the light and heavy media separation and the movement of the medium alternation are transformed from an inverse relationship to a vertical relationship, weakening the shear force when the media move relative to each other. The small spacing between the phase-separating structures 300 divides the conventional high-spacing separation area in the separation tank into short-spacing separation areas, shortening the layer spacing and reducing the mutual mixing interference of light and heavy media under long layer spacing. Thus, the phase change separator of this embodiment can achieve efficient separation with the advantages of short layer spacing and slow alternation speed.

[0072] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A stratified, decelerating phase change separator, characterized in that, include: The cylinder is hollow inside, with a first liquid outlet at the top and a second liquid outlet at the bottom. An inlet pipe is inserted through the cylinder; an outlet hole is provided on the outer wall of the inlet pipe. Multiple phase-separating structures are installed in the liquid inlet pipe and disposed in the cylinder; the multiple phase-separating structures are spaced apart along the length direction of the liquid inlet pipe; each phase-separating structure includes a bend, and at least one phase-separating structure located at the bottom of the cylinder has a through hole in the bend, the through hole penetrating the phase-separating structure; A drainage tube is connected to the phase-separating structure; the drainage tube extends downward to the bottom of the cylinder, and both ends of the drainage tube are connected to the through hole and the second liquid outlet, respectively; The liquid outlet is provided in multiple locations, and the multiple liquid outlets are spaced apart along the length of the liquid inlet pipe; there is at least one liquid outlet between adjacent phase separation structures; the bend is lower than the connection between the phase separation structure and the liquid inlet pipe, and the outer periphery of the phase separation structure is not lower than the connection between the phase separation structure and the liquid inlet pipe.

2. The layered deceleration phase change separator according to claim 1, characterized in that: Along the vertical direction, the distance between the phase-separating structure and the inner wall of the cylinder gradually increases from bottom to top.

3. The layered deceleration phase change separator according to claim 1, characterized in that: A dispersion structure is provided at the liquid outlet.

4. A stratified deceleration phase change separator according to claim 1, characterized in that: The phase-splitting structure includes a first ring segment and a second ring segment, and the corner portion is formed at the connection between the first ring segment and the second ring segment; the ratio of the width of the first ring segment to the width of the second ring segment is 1 / 1 to 4 / 1.

5. A stratified deceleration phase change separator according to claim 1, characterized in that: It also includes a cleaning component, which is movably and vertically mounted inside the inlet pipe, and the cleaning component is connected to a drive device that drives it to rise and / or fall vertically.

6. A stratified deceleration phase change separator according to claim 5, characterized in that: The top end of the inlet pipe is provided with a first retaining ring, and the cleaning component can cooperate with the first retaining ring to seal the top end of the inlet pipe.

7. A stratified deceleration phase change separator according to claim 6, characterized in that: The cleaning assembly includes a first component, a second component, and a connector. The first component is disposed above the second component, and the first component and the second component are connected by the connector. The first component is connected to the drive device, and the first component can cooperate with the first retaining ring to seal the top end of the liquid inlet pipe.

8. A stratified deceleration phase change separator according to claim 7, characterized in that: The connecting element is an elastic element.

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