Phase splitter

Abstract

The phase splitter comprises a shell, a plurality of partition plates and a buffer plate, the shell is provided with a cavity, a liquid inlet, a first outlet and a plurality of second outlets, the liquid inlet, the first outlet and the second outlets are all communicated with the cavity, the liquid inlet is formed in one side of the shell, the first outlet is formed in the other side of the shell, and the buffer plate is arranged in the cavity. The multiple second outlets are formed in the bottom of the shell, the liquid inlet is suitable for introducing rich liquid so that the rich liquid can be separated into a heavy-phase solution and a light-phase solution in the shell, the first outlet is suitable for the light-phase solution to flow out, and the second outlets are suitable for the heavy-phase solution to flow out; the multiple partition plates are arranged in the shell at intervals in the length direction of the shell so as to divide the cavity into multiple partition cavities, through holes penetrating through the partition plates in the length direction of the shell are formed in the partition plates, the cavity is at least communicated with one second outlet, the buffer plate is arranged in the shell, and the buffer plate and the liquid inlet are oppositely arranged at intervals. The device has the advantages of small occupied area, high separation efficiency and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of carbon capture, and in particular relates to a phase separator. Background Art

[0002] With the continuous further development of phase change carbon capture technology, the demonstration of 100,000 tons / year phase change coal-fired power plant flue gas CO2 capture project has been completed, and it is expected to further realize large-scale demonstration application and realize engineering demonstration on the carbon capture device of million-ton coal-fired power plants. However, due to its own technical limitations, phase change carbon capture technology needs to set up a phase separator outside the absorption tower to realize the liquid-liquid phase change process.

[0003] In the related art, the phase separator has poor operating stability, occupies a large area, and has poor separation efficiency between the light phase solution and the heavy phase solution. Summary of the invention

[0004] The present invention is based on the inventor's discovery and understanding of the following facts and problems:

[0005] In the relevant technology, as coal-fired power plants gradually assume the role of peak load regulation of the power grid, the flue gas flow rate will fluctuate with the change of unit load, which will cause the absorbent flow rate in the capture system to fluctuate, thus affecting the stable operation of the phase separator. In the million-ton carbon capture project demonstration, the absorbent flow rate reaches 4000-5000t / h, so the flow change has a more significant impact on the stable operation of the phase separator. In addition, since the traditional phase separator design is generally horizontal, it occupies a large area and has poor light phase and heavy phase separation efficiency.

[0006] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0007] To this end, an embodiment of the present invention provides a vertical phase separator with strong load adaptability and good liquid level monitoring performance.

[0008] A phase separator according to an embodiment of the present invention comprises: a shell, the shell having a chamber, a liquid inlet, a first outlet and a plurality of second outlets, the liquid inlet, the first outlet and the plurality of second outlets are all connected to the chamber, the liquid inlet is arranged on one side of the shell, the first outlet is arranged on the other side of the shell, and the plurality of second outlets are arranged at the bottom of the shell, the liquid inlet is suitable for introducing rich liquid so that the rich liquid is separated into a heavy phase solution and a light phase solution in the shell, the first outlet is suitable for the light phase solution to flow out, and the second outlet is suitable for the heavy phase solution to flow out; a plurality of partition plates, the plurality of partition plates are arranged in the shell at intervals along the length direction of the shell to divide the chamber into a plurality of partition chambers, the partition plates are provided with through holes penetrating the partition plates along the length direction of the shell, so that two adjacent partition chambers are connected through the through holes, and the chamber is connected to at least one of the second outlets; a buffer plate, the buffer plate is arranged in the shell and the buffer plate is arranged relative to the liquid inlet at intervals.

[0009] The phase separator of the embodiment of the present invention is provided with multiple partition plates and buffer plates, which can enable the light phase solution and the heavy phase solution in the rich liquid to be separated multiple times in multiple chambers, thereby improving the separation efficiency of the light phase solution and the heavy phase solution, reducing the footprint of the phase separator and the impact of the rich liquid on the chamber, and reducing the disturbance caused by the change of the inlet flow of the phase separator, thereby ensuring the stability of the operation of the phase separator.

[0010] In some embodiments, the plurality of partition plates include a first plate and a second plate, the first plate and the second plate are both arranged in the shell and are spaced apart along the length direction of the shell to divide the chamber into a first chamber, a second chamber and a third chamber, the lower end portion of the first plate is spaced apart from the inner circumferential surface of the shell to form a first through hole, the second plate is provided with a second through hole and a third through hole penetrating the second plate along the width direction of the shell, the second through hole is formed at the lower end portion of the second plate, and the third through hole is located above the second through hole and is spaced apart from the second through hole in the up and down directions.

[0011] In some embodiments, the plurality of second outlets include a first sub-outlet and a second sub-outlet, wherein the first sub-outlet is disposed at the bottom of the shell and is connected to the first through hole so that the heavy phase solution in the first chamber and the second chamber flows out from the first sub-outlet, and the second sub-outlet is disposed at the bottom of the shell and is connected to the third chamber so that the heavy phase solution in the third chamber flows out from the second sub-outlet.

[0012] In some embodiments, the phase separator also includes a first overflow plate, which extends in the up and down directions. The first overflow plate is arranged in the first cavity to divide the first cavity into a first sub-cavity and a second sub-cavity. The first overflow plate is provided with a first overflow hole and a second overflow hole which penetrate the first overflow plate along the length direction of the shell. The first overflow hole is arranged adjacent to the bottom of the shell, and the second overflow hole is arranged above the first overflow hole and is spaced apart from the first overflow hole in the up and down directions.

[0013] In some embodiments, the phase separator also includes a second overflow plate, which extends in the up and down directions. The second overflow plate is arranged in the second cavity to divide the second cavity into a third sub-cavity and a fourth sub-cavity. The second overflow plate is provided with a third overflow hole that penetrates the second overflow plate along the length direction of the shell, and the third overflow hole is higher than the first through hole.

[0014] In some embodiments, the phase separator also includes: a first detection member, the first detection member is arranged in the first cavity and located on the upper end surface of the shell, the first detection member is used to detect the liquid level and the phase separation interface in the first cavity; a second detection member, the second detection member is arranged in the third cavity and located on the upper end surface of the shell, the second detection member is used to detect the liquid level and the phase separation interface in the third cavity.

[0015] In some embodiments, the phase separator also includes: a first pump, the first pump is connected to the first outlet so that the light phase solution is pumped out from the first outlet through the first pump; multiple second pumps, multiple second pumps are connected to multiple second outlets so that the heavy phase solution is pumped out from the second outlet through the second pumps.

[0016] In some embodiments, in a projection plane orthogonal to the length direction of the shell, the projection of the liquid inlet is located inside the buffer plate.

[0017] In some embodiments, the phase separator further includes an overflow member having an overflow groove and disposed in the chamber, wherein the overflow groove is connected to the first outlet so that the light phase solution in the chamber flows into the overflow groove.

[0018] In some embodiments, the phase separator further includes a third detection member, which is disposed in the chamber and is used to detect the liquid level of the light phase solution in the overflow tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the phase splitter according to the embodiment of the present invention.

[0020] Phase splitter 100;

[0021] Shell 1; chamber 11; first chamber 111; first sub-chamber 1111; second sub-chamber 1112; second chamber 112; third sub-chamber 1121; fourth sub-chamber 1122; third chamber 113; liquid inlet 12; first outlet 13; second outlet 14; first sub-outlet 141; second sub-outlet 142;

[0022] Partition plate 2; first plate 21; first through hole 211; second plate 22; second through hole 221; third through hole 222;

[0023] Buffer plate 3; first overflow plate 4; first overflow hole 41; second overflow hole 42; second overflow plate 5; third overflow hole 51;

[0024] A first detection member 6; a second detection member 7; a third detection member 8; an overflow member 9; an overflow groove 91;

[0025] A first pump 101 ; a second pump 102 . DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0027] The phase splitter 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0028] like Figure 1 As shown, the phase splitter 100 according to the embodiment of the present invention includes a housing 1 , a plurality of partition plates 2 and a buffer plate 3 .

[0029] The shell 1 has a chamber 11, a liquid inlet 12, a first outlet 13 and multiple second outlets 14. The liquid inlet 12, the first outlet 13 and the multiple second outlets 14 are all connected to the chamber 11. The liquid inlet 12 is arranged on one side of the shell 1, the first outlet 13 is arranged on the other side of the shell 1, and the multiple second outlets 14 are arranged at the bottom of the shell 1. The liquid inlet 12 is suitable for passing rich liquid so that the rich liquid is separated into heavy phase solution and light phase solution in the shell 1. The first outlet 13 is suitable for the light phase solution to flow out, and the second outlet 14 is suitable for the heavy phase solution to flow out.

[0030] Specifically, Figure 1As shown, the shell 1 can be a rectangular shell extending in the left-right direction, and the liquid inlet 12 is arranged on the right side of the shell 1. The rich liquid can flow into the shell 1 through the liquid inlet 12, so that the rich liquid is precipitated and separated into a heavy phase solution and a light phase solution in the shell 1. Since the density of the heavy phase liquid is greater than the density of the light phase liquid, the heavy phase solution is below the light phase solution. The first outlet 13 is arranged on the left side of the shell 1, and the light phase solution can flow out of the shell 1 through the first outlet 13. A plurality of second outlets 14 are arranged at the bottom of the shell 1 and are spaced apart in the left-right direction, so that the heavy phase solution can flow out of the shell 1 through the second outlets 14.

[0031] A plurality of partition plates 2 are arranged in the shell 1 at intervals along the length direction of the shell 1 to divide the chamber 11 into a plurality of partition chambers. The partition plates 2 are provided with a plurality of partition plates along the length direction of the shell 1 (such as Figure 1 The through hole of the partition plate 2 is penetrated in the left and right direction as shown in the figure, so that two adjacent partition chambers are connected through the through hole, and the chamber 11 is connected with at least one second outlet 14. Specifically, as Figure 1 As shown, the partition plate 2 is a vertical rectangular plate extending in the up and down directions, the outer peripheral surface of the partition plate 2 is connected to the inner peripheral surface of the shell 1, and multiple partition plates 2 are arranged at intervals along the left and right directions to divide the chamber 11 into multiple partition chambers, and the partition plates 2 are provided with through holes that penetrate the partition plates 2 along the left and right directions, so that the partition chambers are connected through the through holes, and each chamber 11 is provided with a second outlet 14, thereby allowing the rich liquid to be gradually separated through the multiple partition chambers, thereby improving the phase separation effect of the phase separator 100.

[0032] The buffer plate 3 is disposed in the housing 1 and is spaced apart from the liquid inlet 12 and arranged opposite to each other. Figure 1 As shown, the buffer plate 3 is arranged at the liquid inlet 12 and is spaced apart from the liquid inlet 12. Therefore, when the rich liquid flows into the liquid inlet 12, the rich liquid can impact on the buffer plate 3 to reduce the disturbance of the phase separator 100 caused by the change of the rich liquid flow at the inlet of the phase separator 100 when the coal-fired unit is running with variable load, thereby extending the service life of the phase separator 100.

[0033] The phase separator 100 of the embodiment of the present invention is provided with a plurality of partition plates 2, which divide the chamber 11 into a plurality of partition chambers, so that the rich liquid is gradually separated in the plurality of partition chambers, and the light phase solution and the heavy phase solution in the rich liquid can be separated multiple times in the plurality of chambers 11, thereby improving the separation efficiency of the light phase solution and the heavy phase solution. Moreover, the plurality of partition chambers are sequentially arranged in the left-right direction, so that the phase separator 100 can be arranged as a vertical phase separator 100, and the floor area of ​​the phase separator 100 is reduced compared with the horizontal phase separator 100 in the related art. Moreover, a buffer plate 3 is provided so that the rich liquid impacts the buffer plate 3, thereby reducing the impact of the rich liquid on the chamber 11, and reducing the disturbance caused by the change of the inlet flow rate of the phase separator 100, thereby ensuring the stability of the operation of the phase separator 100.

[0034] In some embodiments, the plurality of partition plates 2 include a first plate 21 and a second plate 22, both of which are disposed in the shell 1 and are spaced apart along the length direction of the shell 1 to divide the chamber 11 into a first cavity 111, a second cavity 112, and a third cavity 113, the lower end of the first plate 21 is spaced apart from the inner circumferential surface of the shell 1 to form a first through hole 211, the second plate 22 is provided with a second through hole 221 and a third through hole 222 which penetrate the second plate 22 along the length direction of the shell 1, the second through hole 221 is formed at the lower end of the second plate 22, the third through hole 222 is located above the second through hole 221 and is spaced apart from the second through hole 221 along the up and down directions.

[0035] Specifically, Figure 1 As shown, the first plate 21 and the second plate 22 are both vertical plates extending in the up-down direction, and the first plate 21 and the second plate 22 are spaced apart in the left-right direction to divide the chamber 11 into a first chamber 111, a second chamber 112 and a third chamber 113. The outer circumferential surface of the first plate 21 and the outer circumferential surface of the second plate 22 are both connected to the inner circumferential surface of the shell 1. The lower end of the first plate 21 is spaced apart from the bottom surface of the shell 1 to form a first through hole 211. The liquid in the first chamber 111 flows into the second chamber 112 through the first through hole 211. The second plate 22 is provided with a second through hole 221 and a third through hole 222 that penetrate the second plate 22 in the left-right direction. The second through hole 221 is formed at the lower end of the second plate 22, and the third through hole 222 is formed in the middle of the second plate 22. Thus, the heavy phase solution in the second chamber 112 can flow into the third chamber 113 through the second through hole 221, and the light phase solution in the second chamber 112 flows into the third chamber 113 through the third through hole 222.

[0036] In some embodiments, the plurality of second outlets 14 include a first sub-outlet 141 and a second sub-outlet 142, wherein the first sub-outlet 141 is disposed at the bottom of the housing 1 and communicates with the first through hole 211, so that the heavy phase solution in the first cavity 111 and the second cavity 112 flows out from the first sub-outlet 141, and the second sub-outlet 142 is disposed at the bottom of the housing 1 and communicates with the third cavity 113, so that the heavy phase solution in the third cavity 113 flows out from the second sub-outlet 142. Specifically, as Figure 1As shown, the number of the plurality of second outlets 14 is two and they are respectively a first sub-outlet 141 and a second sub-outlet 142. The first sub-outlet 141 and the second sub-outlet 142 are both arranged at the bottom of the shell 1 and the first sub-outlet 141 is arranged at the junction of the first cavity 111 and the second cavity 112. The right half of the first sub-outlet 141 is connected to the first cavity 111, and the left half of the first sub-outlet 141 is connected to the second cavity 112. Thus, the heavy phase solution in the first cavity 111 and the second cavity 112 can be extracted out of the shell 1 through the first sub-outlet 141, the second sub-outlet 142 is connected to the third cavity 113, so that the heavy phase solution in the third cavity 113 flows out through the second sub-outlet 142, and the first outlet 13 is connected to the third cavity 113, so that the light phase solution in the third cavity 113 flows out from the first outlet 13, thereby improving the quality of the light phase solution and the heavy phase solution.

[0037] In some embodiments, the phase separator 100 further includes a first overflow plate 4, which extends in the up-down direction and is disposed in the first cavity 111 to divide the first cavity 111 into a first sub-cavity 1111 and a second sub-cavity 1112. The first overflow plate 4 is provided with a first overflow hole 41 and a second overflow hole 42 which penetrate the first overflow plate 4 along the length direction of the shell 1. The first overflow hole 41 is disposed adjacent to the bottom of the shell 1, and the second overflow hole 42 is disposed above the first overflow hole 41 and is spaced apart from the first overflow hole 41 in the up-down direction. Specifically, as Figure 1 As shown, the first overflow plate 4 is a vertical plate extending in the up-down direction, the first overflow plate 4 is arranged in the first cavity 111, and the outer peripheral surface of the first overflow plate 4 is connected to the inner peripheral surface of the first cavity 111, the first overflow plate 4 can divide the first cavity 111 into a first sub-cavity 1111 and a second sub-cavity 1112 in the left-right direction, the first overflow plate 4 is provided with a first overflow hole 41 and a second overflow hole 42 penetrating the first overflow plate 4 in the left-right direction, the first overflow hole 41 is arranged at the lower end of the first overflow plate 4, and the second overflow hole 42 is arranged at the lower end of the first overflow plate 4. 4, the rich liquid can flow into the first sub-chamber 1111 through the liquid inlet 12, the heavy phase solution in the first sub-chamber 1111 flows into the second sub-chamber 1112 through the first overflow hole 41 and flows into the first sub-outlet 141 through the second sub-chamber 1112, and the light phase solution in the first sub-chamber 1111 flows into the second sub-chamber 1112 through the second overflow hole 42. Therefore, the design of the first overflow hole 41 and the second overflow hole 42 ensures that the light phase solution and the heavy phase solution can be separated and flow out through different paths, thereby improving the separation effect.

[0038] In some embodiments, the phase separator 100 further includes a second overflow plate 5, which extends in the up-down direction. The second overflow plate 5 is disposed in the second cavity 112 to divide the second cavity 112 into a third sub-cavity 1121 and a fourth sub-cavity 1122. The second overflow plate 5 is provided with a third overflow hole 51 that penetrates the second overflow plate 5 along the length direction of the shell 1. The third overflow hole 51 is higher than the first through hole 211. Specifically, as Figure 1 As shown, the second overflow plate 5 is a vertical plate extending in the up-down direction, the second overflow plate 5 is arranged in the second chamber 112, and the outer circumferential surface of the second overflow plate 5 is connected to the inner circumferential surface of the second chamber 112, the second overflow plate 5 can divide the second chamber 112 into a third sub-chamber 1121 and a fourth sub-chamber 1122 in the left-right direction, the second overflow plate 5 is provided with a third overflow hole 51 penetrating the second overflow plate 5 in the left-right direction, the third overflow hole 51 is higher than the first through hole 211, the third sub-chamber 1121 is arranged between the second sub-chamber 1112 and the fourth sub-chamber 1122, the first sub-outlet 141 is connected with the second sub-chamber 1112 and the third sub-chamber 1121, and because the heavy phase liquid is located above the light phase liquid, the light phase solution located in the third sub-chamber 1121 can flow into the third sub-chamber 1121 through the third overflow hole 51, and the heavy phase liquid located in the third sub-chamber 1121 flows out through the first sub-outlet 141, so that the phase separator 100 is more reasonably arranged.

[0039] In some embodiments, the phase separator 100 further includes a first detection element 6 and a second detection element 7 .

[0040] The first detection member 6 is disposed in the first cavity 111 and located on the upper end surface of the housing 1, and is used to detect the liquid level and the phase separation interface in the first cavity 111. The second detection member 7 is disposed in the third cavity 113 and located on the upper end surface of the housing 1, and is used to detect the liquid level and the phase separation interface in the third cavity 113. Specifically, Figure 1As shown, the first detection member 6 and the second detection member 7 are both liquid level and phase interface monitors and are monitored based on density difference or capacitance principle. The first detection member 6 is arranged in the second sub-chamber 1112 and is located at the top of the second sub-chamber 1112, so as to detect the liquid level in the second sub-chamber 1112 and the height of the liquid phase interface in the second sub-chamber 1112. When the height of the liquid phase interface in the second sub-chamber 1112 is higher than the first through hole 211 and lower than the third overflow hole 51, the first sub-outlet 141 is opened to allow the heavy phase liquid in the second sub-chamber 1112 to flow out of the first sub-outlet 141. The second detection member 7 is arranged in the third chamber 113 and is located at the top of the third chamber 113. When the second detection member 7 detects that the height of the liquid phase separation interface in the third chamber 113 is higher than the second through hole 221 and lower than the first outlet 13, the second sub-outlet 142 is opened to allow the heavy phase liquid in the third chamber 113 to flow out through the first sub-outlet 141, which can effectively prevent the light phase liquid in the third chamber 113 from flowing out of the third chamber 113 through the second sub-outlet 142, thereby ensuring the separation efficiency of the phase separator 100.

[0041] In some embodiments, the phase separator 100 further includes a first pump 101 and a plurality of second pumps 102 .

[0042] The first pump 101 is connected to the first outlet 13 so that the light phase solution is pumped out from the first outlet 13 through the first pump 101. Figure 1 As shown, the first pump 101 is a light phase pump and the inlet of the first pump 101 is connected to the first outlet 13 , so that the light phase solution can flow out of the third chamber 113 through the first pump 101 .

[0043] The plurality of second pumps 102 are connected to the plurality of second outlets 14 so that the heavy phase solution is pumped out from the second outlets 14 by the second pumps 102. Specifically, Figure 1 As shown, the second pump 102 is a heavy phase pump and there are two second pumps 102 . The two second pumps 102 are respectively connected to the first sub-outlet 141 and the second sub-outlet 142 , so that the heavy phase solution can flow out of the housing 1 through the second pump 102 .

[0044] In some embodiments, in a projection plane orthogonal to the length direction of the housing 1, the projection of the liquid inlet 12 is located inside the buffer plate 3. Specifically, Figure 1 As shown, the area of ​​the buffer plate 3 is larger than the area of ​​the liquid inlet 12, thereby ensuring that the incoming rich liquid impacts the buffer plate 3, reducing the impact of the incoming liquid on the internal structure, avoiding disturbance, and improving the separation effect.

[0045] In some embodiments, the phase separator 100 further includes an overflow member 9, which has an overflow groove 91 and is disposed in the chamber 11. The overflow groove 91 is connected to the first outlet 13 so that the light phase solution in the chamber 11 flows into the overflow groove 91. Specifically, Figure 1As shown, the overflow member 9 includes a horizontal plate and a vertical plate. The horizontal plate is arranged on the left side surface of the shell 1 and is located below the first outlet 13. The vertical plate is arranged on the horizontal plate and is spaced apart from the left side surface of the inner circumference of the shell 1. The height of the vertical plate is higher than the third through hole 222. The vertical plate is arranged on the horizontal plate so that the overflow member 9 is generally L-shaped. The vertical plate and the horizontal plate extend in the front-to-back direction and are respectively connected to the front and rear side surfaces of the shell 1. Thus, the upper end surface of the horizontal plate, the left side surface of the vertical plate and the left side surface of the inner circumference of the shell 1 define an overflow groove 91. Thus, the light phase solution in the third chamber 113 overflows into the overflow groove 91 through the vertical plate, and then flows into the first outlet 13 through the overflow groove 91. Therefore, the overflow groove 91 can ensure that the light phase solution can smoothly flow into the overflow groove 91 and flow out through the first outlet 13, thereby improving the separation efficiency of the light phase solution. The overflow groove 91 improves the separation efficiency of the light phase solution and also ensures the stable operation of the system.

[0046] In some embodiments, the phase separator 100 further includes a third detection member 8, which is disposed in the chamber 11 and is used to detect the liquid level of the light phase solution in the overflow tank 91. Figure 1 As shown, the third detection member 8 is a liquid level monitoring gauge, which is arranged at the top of the third chamber 113 and is spaced apart from the overflow tank 91 in the up and down directions. The third detection member 8 is used to detect the liquid level of the light phase solution in the overflow tank 91. When the liquid level of the light phase solution in the overflow tank 91 is higher than a preset value, the first pump 101 is turned on to pump the light phase solution in the overflow tank 91 out of the shell 1 to ensure that the liquid level in the overflow tank 91 is not too high or too low, thereby ensuring the stable operation of the phase separator 100.

[0047] To sum up, the phase separator 100 of the embodiment of the present invention is based on the phase change CO2 capture process. The rich liquid from the absorption tower after capturing CO2 in the flue gas enters the chamber 11 from the right liquid inlet 12. After separation by the first chamber 111, the second chamber 112 and the third chamber 113, the light phase solution is extracted from the first outlet 13 at the top of the phase separator, and the heavy phase solution is extracted from the second outlet 14 at the bottom of the phase separator.

[0048] The phase separator 100 of the embodiment of the present invention is provided with a buffer plate 3 to mitigate the disturbance of the phase separator caused by the change of the rich liquid flow rate at the phase separator inlet when the coal-fired unit is in variable load operation.

[0049] After the phase separator 100 of the embodiment of the present invention passes through the buffer plate 3, the rich liquid is statically layered in the phase separator chamber. A first plate 21 is set in each first chamber 111, and a first plate 22 is set in the second chamber 112. The first overflow hole 41, the second overflow hole 42 and the third overflow hole 51 with an aperture of 100-1000μm are set in the partition plate according to different absorbent components. The heavy phase flow channel area is located on the lower side, and the light phase flow channel area is located on the upper side. The first overflow hole 41 and the second overflow hole 42 overflow to the second sub-chamber 1112 for phase separation. At this time, the heavy phase is pumped out by the bottom plate heavy phase pump, and the remaining light phase (containing some absorbents that are not completely separated) needs to flow into the second chamber 112 through the first through hole 211 and stand still. After standing, the light phase liquid and the heavy phase liquid pass through the second through hole 221 respectively; the third through hole 222 flows into the third chamber 113 for further phase separation, thereby further ensuring the absorbent phase separation efficiency through three-stage phase separation. At this time, the light phase solution on the upper side of the third chamber 113 flows into the first outlet 13 and is discharged by the first pump 101, and the heavy phase solution on the lower side of the third chamber 113 flows into the second sub-outlet 142 and is discharged by the second pump 102.

[0050] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0055] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A phase splitter, characterized in that: include: A shell, the shell having a chamber, a liquid inlet, a first outlet and a plurality of second outlets, the liquid inlet, the first outlet and the plurality of second outlets are all in communication with the chamber, the liquid inlet is arranged on one side of the shell, the first outlet is arranged on the other side of the shell, and the plurality of second outlets are arranged at the bottom of the shell, the liquid inlet is suitable for passing rich liquid so that the rich liquid is separated into a heavy phase solution and a light phase solution in the shell, the first outlet is suitable for the light phase solution to flow out, and the second outlet is suitable for the heavy phase solution to flow out; a plurality of partition plates, the plurality of partition plates being arranged in the shell at intervals along the length direction of the shell to divide the chamber into a plurality of partition chambers, the partition plates being provided with through holes penetrating the partition plates along the length direction of the shell, so that two adjacent partition chambers are connected through the through holes, and the chamber is connected with at least one of the second outlets; A buffer plate is arranged in the shell and is spaced apart from the liquid inlet and arranged opposite to each other.

2. The phase splitter according to claim 1, characterized in that: The multiple partition plates include a first plate and a second plate, the first plate and the second plate are both arranged in the shell and are spaced apart along the length direction of the shell to divide the chamber into a first chamber, a second chamber and a third chamber, the lower end of the first plate is spaced apart from the inner circumferential surface of the shell to form a first through hole, the second plate is provided with a second through hole and a third through hole that penetrates the second plate along the width direction of the shell, the second through hole is formed at the lower end of the second plate, and the third through hole is located above the second through hole and is spaced apart from the second through hole in the up and down directions.

3. The phase splitter according to claim 2, characterized in that: The plurality of second outlets include a first sub-outlet and a second sub-outlet, wherein the first sub-outlet is disposed at the bottom of the shell and is communicated with the first through hole so that the heavy phase solution in the first chamber and the second chamber flows out from the first sub-outlet, and the second sub-outlet is disposed at the bottom of the shell and is communicated with the third chamber so that the heavy phase solution in the third chamber flows out from the second sub-outlet.

4. The phase splitter according to claim 2, characterized in that: It also includes a first overflow plate, which extends in the up-down direction. The first overflow plate is arranged in the first cavity to divide the first cavity into a first sub-cavity and a second sub-cavity. The first overflow plate is provided with a first overflow hole and a second overflow hole which penetrate the first overflow plate along the length direction of the shell. The first overflow hole is arranged adjacent to the bottom of the shell, and the second overflow hole is arranged above the first overflow hole and is spaced apart from the first overflow hole in the up-down direction.

5. The phase splitter according to claim 2, characterized in that: It also includes a second overflow plate, which extends in the up and down directions. The second overflow plate is arranged in the second cavity to divide the second cavity into a third sub-cavity and a fourth sub-cavity. The second overflow plate is provided with a third overflow hole that penetrates the second overflow plate along the length direction of the shell, and the third overflow hole is higher than the first through hole.

6. The phase splitter according to claim 2, characterized in that: Also includes: a first detection member, the first detection member being disposed in the first cavity and located on the upper end surface of the shell, the first detection member being used to detect the liquid level and the phase separation interface in the first cavity; The second detecting member is arranged in the third cavity and located on the upper end surface of the shell, and the second detecting member is used to detect the liquid level and the phase separation interface in the third cavity.

7. The phase splitter according to claim 1, characterized in that: Also includes: a first pump, the first pump being in communication with the first outlet so that the light phase solution is pumped out from the first outlet through the first pump; A plurality of second pumps are connected to the plurality of second outlets, so that the heavy phase solution is pumped out from the second outlets by the second pumps.

8. The phase splitter according to claim 1, characterized in that: In a projection plane orthogonal to the length direction of the shell, the projection of the liquid inlet is located inside the buffer plate.

9. The phase splitter according to claim 1, characterized in that: It also includes an overflow member, which has an overflow groove and is arranged in the chamber. The overflow groove is communicated with the first outlet so that the light phase solution in the chamber flows into the overflow groove.

10. The phase splitter according to claim 9, characterized in that: It also includes a third detection member, which is arranged in the chamber and is used to detect the liquid level of the light phase solution in the overflow tank.

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