phase splitter

Abstract

The application discloses a phase separator, which comprises a shell, a plurality of partition plates and a buffer plate, the shell has 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 communicated 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 on the bottom of the shell, the liquid inlet is suitable for being connected with rich liquid so that the rich liquid is separated into heavy phase solution and light phase solution in the shell, the first outlet is suitable for the light phase solution to flow out, the second outlet is suitable for the heavy phase solution to flow out, the plurality of partition plates are arranged in the shell along the length direction of the shell and are spaced to divide the chamber into a plurality of separated chambers, the partition plates are provided with through holes penetrating through the partition plates along the length direction of the shell, the chamber is communicated with at least one second outlet, and the buffer plate is arranged in the shell and is oppositely arranged with the liquid inlet. The application has the advantages of small occupied area and high separation efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of carbon capture, and particularly relates to a phase separator. BACKGROUND

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

[0003] In the related art, the phase separator has poor stability, large floor area, and poor separation efficiency of light phase solution and heavy phase solution. SUMMARY

[0004] The present application is based on the discovery and understanding of the inventors of the following facts and problems:

[0005] In the related art, as coal-fired power plants gradually take on the role of grid peak shaving, the flue gas flow will fluctuate with the change of unit load, thus causing the absorbent flow in the capture system to also fluctuate, thereby affecting the stable operation of the phase separator. And in the million tons of carbon capture engineering demonstration, the absorbent flow reaches 4000-5000 t / h, so the influence of flow change on the stable operation of the phase separator is more significant. In addition, due to the general horizontal design of the traditional phase separator, the floor area is large and the separation efficiency of the light phase and the heavy phase is poor.

[0006] The present application aims to at least partially solve one of the technical problems in the related art.

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

[0008] The phase separator according to the embodiment of the present application comprises a 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 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 on the bottom of the shell, the liquid inlet is adapted to be connected to a 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 adapted to let the light phase solution flow out, and the second outlet is adapted to let the heavy phase solution flow out; a plurality of partition plates are arranged in the shell along the length direction of the shell to divide the chamber into a plurality of sub-chambers, the partition plates are provided with through holes penetrating through the partition plates along the length direction of the shell so that two adjacent sub-chambers are in communication through the through holes, and the chamber is in communication with at least one second outlet; and a buffer plate is arranged in the shell and spaced apart from the liquid inlet.

[0009] The phase separator according to the embodiment of the present application is provided with a plurality of partition plates and a buffer plate, so that the light phase solution and the heavy phase solution in the rich liquid are separated multiple times in a plurality of chambers, the separation efficiency of the light phase solution and the heavy phase solution is improved, the floor area of the phase separator is reduced, the impact of the rich liquid on the chamber is reduced, the disturbance caused by the change of the inlet flow of the phase separator is reduced, and the stability of the operation of the phase separator is ensured.

[0010] In some embodiments, the plurality of partition plates comprises a first plate and a second plate, the first plate and the second plate are arranged in the shell and 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 penetrating through 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 spaced apart from the second through hole along the up-down direction.

[0011] In some embodiments, the plurality of second outlets comprises a first sub-outlet and a second sub-outlet, the first sub-outlet is arranged on the bottom of the shell and in communication 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 arranged on the bottom of the shell and in communication with 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 further comprises a first overflow plate extending in the up-down direction, the first overflow plate being arranged in the first cavity to divide the first cavity into a first sub-cavity and a second sub-cavity, the first overflow plate being provided with a first overflow hole and a second overflow hole penetrating the first overflow plate in the length direction of the shell, the first overflow hole being arranged adjacent to the bottom of the shell, and the second overflow hole being arranged above the first overflow hole and spaced apart from the first overflow hole in the up-down direction.

[0013] In some embodiments, the phase separator further comprises a second overflow plate extending in the up-down direction, the second overflow plate being arranged in the second cavity to divide the second cavity into a third sub-cavity and a fourth sub-cavity, the second overflow plate being provided with a third overflow hole penetrating the second overflow plate in the length direction of the shell, the third overflow hole being higher than the first through hole.

[0014] In some embodiments, the phase separator further comprises a first detection member arranged in the first cavity and located at 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; and a second detection member arranged in the third cavity and located at the upper end surface of the shell, the second detection member being used to detect the liquid level and the phase separation interface in the third cavity.

[0015] In some embodiments, the phase separator further comprises a first pump in communication with the first outlet, so that the light phase solution is pumped out of the first outlet by the first pump; and a plurality of second pumps in communication with the plurality of second outlets, so that the heavy phase solution is pumped out of the second outlets by 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 in the buffer plate.

[0017] In some embodiments, the phase separator further comprises an overflow member having an overflow groove and arranged in the chamber, the overflow groove being in communication with 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 comprises a third detection member arranged in the chamber, the third detection member being used to detect the liquid level of the light phase solution in the overflow groove. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic diagram of a phase separator according to an embodiment of the present application.

[0020] Phase separator 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] First inspection component 6; Second inspection component 7; Third inspection component 8; Overflow component 9; Overflow channel 91;

[0025] First pump 101; Second pump 102. Detailed Implementation

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

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

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

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

[0030] Specifically, such as Figure 1As shown, the shell 1 can be a rectangular shell extending in the left-right direction, the liquid inlet 12 is arranged at the right side of the shell 1, and the rich liquid can flow into the shell 1 through the liquid inlet 12, so that the rich liquid is separated into the heavy phase solution and the light phase solution in the shell 1, and the heavy phase solution is below the light phase solution due to the density of the heavy phase liquid being greater than the density of the light phase liquid, the first outlet 13 is arranged at the left side of the shell 1, and the light phase solution can flow out of the shell 1 through the first outlet 13, and a plurality of second outlets 14 are arranged at the bottom of the shell 1 and are arranged at intervals 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 at intervals in the length direction of the shell 1 in the shell 1 to divide the chamber 11 into a plurality of separated chambers, the partition plate 2 is provided with a through hole penetrating the partition plate 2 in the length direction (such as Figure 1 the left-right direction) of the shell 1, so that the two adjacent separated chambers are communicated through the through hole, and the chamber 11 is communicated with at least one second outlet 14. Specifically, as shown, Figure 1 the partition plate 2 is a vertical rectangular plate extending in the up-down direction, the outer peripheral surface of the partition plate 2 is connected with the inner peripheral surface of the shell 1, and a plurality of partition plates 2 are arranged at intervals in the left-right direction to divide the chamber 11 into a plurality of separated chambers, and the partition plate 2 is provided with a through hole penetrating the partition plate 2 in the left-right direction, so that the separated chambers are communicated through the through hole, and each chamber 11 is provided with a second outlet 14, thereby making the rich liquid gradually separate through the plurality of separated chambers, and improving the phase separation effect of the phase separator 100.

[0032] The buffer plate 3 is arranged in the shell 1 and is arranged opposite to the liquid inlet 12. Specifically, as shown, Figure 1 the buffer plate 3 is arranged at the liquid inlet 12 and is arranged at intervals with the liquid inlet 12, thereby when the rich liquid flows into the liquid inlet 12, the rich liquid can impact on the buffer plate 3, so as to reduce the disturbance of the change of the rich liquid flow at the inlet of the phase separator 100 to the inside of the phase separator 100 when the coal-fired unit is running at variable load, and prolongs the service life of the phase separator 100.

[0033] The phase separator 100 of the embodiment of the present application is provided with a plurality of partition plates 2, which divide the chamber 11 into a plurality of separated chambers, so that the rich liquid gradually separates in the plurality of separated chambers, and the light phase solution and the heavy phase solution in the rich liquid can be separated for multiple times in the plurality of chambers 11, which improves the separation efficiency of the light phase solution and the heavy phase solution, and the plurality of separated chambers are arranged in sequence 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, and the buffer plate 3 is arranged, so that the rich liquid impacts on the buffer plate 3, which can reduce the impact of the rich liquid on the chamber 11 and the disturbance caused by the change of the inlet flow of the phase separator 100, and ensures the stability of the operation of the phase separator 100.

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

[0035] Specifically, as shown in Figure 1 the first plate 21 and the second plate 22 are both vertical plates extending along the up-down direction, and are spaced apart along the left-right direction to divide the chamber 11 into the first chamber 111, the second chamber 112 and the 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 with the inner circumferential surface of the housing 1, the lower end of the first plate 21 is spaced apart from the bottom surface of the housing 1 to form the 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 the second through hole 221 and the third through hole 222 which penetrate the second plate 22 along 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 at the middle of the second plate 22, so that 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 can flow into the third chamber 113 through the third through hole 222.

[0036] In some embodiments, the plurality of second outlets 14 includes a first sub-outlet 141 and a second sub-outlet 142, the first sub-outlet 141 is disposed at the bottom of the housing 1 and is in communication with the first through hole 211, so that the heavy phase solution in the first chamber 111 and the second chamber 112 can flow out from the first sub-outlet 141, and the second sub-outlet 142 is disposed at the bottom of the housing 1 and is in communication with the third chamber 113, so that the heavy phase solution in the third chamber 113 can flow out from the second sub-outlet 142. Specifically, as shown in Figure 1As shown, the number of the plurality of second outlets 14 is two, which are a first sub-outlet 141 and a second sub-outlet 142, both of which are 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 communicates with the first cavity 111, and the left half of the first sub-outlet 141 communicates with the second cavity 112, so that the heavy phase solution in the first cavity 111 and the second cavity 112 can be drawn out of the shell 1 through the first sub-outlet 141, the second sub-outlet 142 communicates with the third cavity 113, so that the heavy phase solution in the third cavity 113 can flow out through the second sub-outlet 142, and the first outlet 13 communicates with the third cavity 113, so that the light phase solution in the third cavity 113 can flow 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 comprises a first overflow plate 4 extending in the up-down direction, the first overflow plate 4 being arranged 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 being provided with a first overflow hole 41 and a second overflow hole 42 penetrating the first overflow plate 4 in the length direction of the shell 1, the first overflow hole 41 being arranged adjacent to the bottom of the shell 1, and the second overflow hole 42 being arranged above the first overflow hole 41 and spaced apart from the first overflow hole 41 in the up-down direction. Specifically, as shown, Figure 1 The first overflow plate 4 is a vertical plate extending in the up-down direction, the first overflow plate 4 being arranged in the first cavity 111 and the outer peripheral surface of the first overflow plate 4 being connected to the inner peripheral surface of the first cavity 111, the first overflow plate 4 dividing the first cavity 111 into the first sub-cavity 1111 and the second sub-cavity 1112 in the left-right direction, the first overflow plate 4 being provided with the first overflow hole 41 and the second overflow hole 42 penetrating the first overflow plate 4 in the left-right direction, the first overflow hole 41 being arranged at the lower end of the first overflow plate 4, and the second overflow hole 42 being arranged at the middle of the first overflow plate 4, the rich liquid flowing into the first sub-cavity 1111 through the liquid inlet 12, the heavy phase solution in the first sub-cavity 1111 flowing into the second sub-cavity 1112 through the first overflow hole 41 and flowing into the first sub-outlet 141 through the second sub-cavity 1112, and the light phase solution in the first sub-cavity 1111 flowing into the second sub-cavity 1112 through the second overflow hole 42, so that 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 flowed out through different paths, thereby improving the separation effect.

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

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

[0040] The first detection member 6 is arranged in the first cavity 111 and located at the upper end surface of the shell 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 arranged in the third cavity 113 and located at the upper end surface of the shell 1, and is used to detect the liquid level and the phase separation interface in the third cavity 113. Specifically, as shown in Figure 1As shown, the first detecting member 6 and the second detecting member 7 are both liquid level and phase interface monitoring meters and are based on density difference or capacitive principle for monitoring. The first detecting member 6 is arranged in the second sub-cavity 1112 and located at the top of the second sub-cavity 1112, so as to detect the liquid level of the liquid in the second sub-cavity 1112 and the height of the liquid phase interface in the second sub-cavity 1112. When the height of the liquid phase interface in the second sub-cavity 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 make the heavy phase liquid in the second sub-cavity 1112 flow out of the first sub-outlet 141. The second detecting member 7 is arranged in the third cavity 113 and located at the top of the third cavity 113. When the second detecting member 7 detects that the height of the liquid phase interface in the third cavity 113 is higher than the second through hole 221 and lower than the first outlet 13, the second sub-outlet 142 is opened to make the heavy phase liquid in the third cavity 113 flow out of the first sub-outlet 141, which can effectively prevent the light phase liquid in the third cavity 113 from flowing out of the third cavity 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 comprises a first pump 101 and a plurality of second pumps 102.

[0042] The first pump 101 is in communication with the first outlet 13, so that the light phase solution is pumped out of the first outlet 13 by the first pump 101. Specifically, as shown in Figure 1 The first pump 101 is a light phase pump and the inlet of the first pump 101 is in communication with the first outlet 13, so that the light phase solution can flow out of the third cavity 113 by the first pump 101.

[0043] The plurality of second pumps 102 are in communication with the plurality of second outlets 14, so that the heavy phase solution is pumped out of the second outlets 14 by the second pumps 102. Specifically, as shown in Figure 1 The second pump 102 is a heavy phase pump and the number of the second pump 102 is two. The two second pumps 102 are respectively in communication with the first sub-outlet 141 and the second sub-outlet 142, so that the heavy phase solution can flow out of the shell 1 by the second pump 102.

[0044] In some embodiments, in the projection plane perpendicular to the length direction of the shell 1, the projection of the liquid inlet 12 is located in the buffer plate 3. Specifically, as shown in Figure 1 The area of the buffer plate 3 is greater than the area of the liquid inlet 12, so that the entering rich liquid can impact on the buffer plate 3, reducing the impact of the liquid on the internal structure, avoiding disturbance and improving the separation effect.

[0045] In some embodiments, the phase separator 100 further comprises an overflow member 9, the overflow member 9 has an overflow groove 91 and is arranged in the cavity 11. The overflow groove 91 is in communication with the first outlet 13, so that the light phase solution in the cavity 11 flows into the overflow groove 91. Specifically, as shown in Figure 1As shown, the overflow member 9 includes a horizontal plate arranged on the left side of the shell 1 below the first outlet 13 and a vertical plate arranged on the horizontal plate and spaced apart from the left side of the inner circumferential surface of the shell 1, the height of the vertical plate being higher than the third through hole 222, the vertical plate being arranged on the horizontal plate so that the overflow member 9 is generally L-shaped, the vertical plate and the horizontal plate extending along the front-rear direction and being connected to the front and rear sides of the shell 1 respectively, so that the upper end surface of the horizontal plate, the left side of the vertical plate and the left side of the inner circumferential surface of the shell 1 define an overflow groove 91, so that the light phase solution in the third cavity 113 can overflow through the vertical plate into the overflow groove 91 and then flow into the first outlet 13 through the overflow groove 91, so that 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, improving the separation efficiency of the light phase solution, and ensuring stable operation of the system.

[0046] In some embodiments, the phase separator 100 further comprises a third detection member 8 arranged in the cavity 11, the third detection member 8 being used to detect the liquid level of the light phase solution in the overflow groove 91. Specifically, as shown, Figure 1 the third detection member 8 is a liquid level monitor arranged at the top of the third cavity 113 and spaced apart from the overflow groove 91 along the up-down direction, the third detection member 8 being used to detect the liquid level of the light phase solution in the overflow groove 91, when the liquid level of the light phase solution in the overflow groove 91 is higher than a preset value, the first pump 101 is started to pump out the light phase solution in the overflow groove 91 from the shell 1, so as to ensure that the liquid level in the overflow groove 91 is not too high or too low, thereby ensuring stable operation of the phase separator 100.

[0047] In summary, the phase separator 100 of the embodiment of the present application is based on the phase change CO2 capture process, after the rich solution from the absorption tower after capturing CO2 in the flue gas enters the cavity 11 from the right liquid inlet 12, after separation through the first cavity 111, the second cavity 112 and the third cavity 113, the light phase solution is pumped out from the first outlet 13 at the upper part of the phase separator, and the heavy phase solution is pumped out from the second outlet 14 at the bottom of the phase separator.

[0048] The phase separator 100 of the embodiment of the present application is provided with a buffer plate 3 to reduce the disturbance of the change of the inlet rich solution flow of the phase separator when the coal-fired unit is running at variable load to the inside of the phase separator.

[0049] The phase separator 100 of the embodiment of the present application is rich in liquid after passing through the buffer plate 3, and then the liquid is layered in the phase separator chamber. The first plate 21 is arranged in each first cavity 111, and the second plate 22 is arranged in the second cavity 112. The first overflow hole 41, the second overflow hole 42 and the third overflow hole 51 with a pore size of 100-1000 μm are arranged in the partition plate according to different components of the absorbent. The heavy phase flow channel region is located at the lower side, and the light phase flow channel region is located at the upper side. The light phase liquid flows into the second cavity 112 through the first overflow hole 41 and the second overflow hole 42 to separate phases, at this time, the heavy phase is extracted by the bottom plate heavy phase pump, and the remaining light phase (containing part of the absorbent which is not completely separated) needs to flow into the second cavity 112 through the first through hole 211. The light phase liquid and the heavy phase liquid after standing flow into the third cavity 113 through the second through hole 221 and the third through hole 222 to further separate phases, so that the absorbent separation efficiency can be further ensured by three-stage separation. At this time, the light phase solution at the upper side of the third cavity 113 flows into the first outlet 13 and is discharged by the first pump 101, and the heavy phase solution at the lower side of the third cavity 113 flows into the second sub-outlet 142 and is discharged by the second pump 102.

[0050] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0051] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0052] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly in contact with the second feature, or indirectly in contact with the second feature through an intermediate medium. Also, a first feature "over", "above" and "on top of" a second feature can be directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. A first feature "under", "below" and "underneath" a second feature can be directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0054] In the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Moreover, the terms "first", "second", "third", etc. are used herein merely as identifiers for different elements, regions, or layers, and are not intended to be taken literally, unless otherwise specified.

[0055] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present application, and that changes, modifications, substitutions and variations can be made therein by those skilled in the art without departing from the scope of the present application.

Claims

1. A phase splitter, characterized by The application relates to a liquid separation device, which comprises: a housing 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 being in communication with the chamber, the liquid inlet being arranged on one side of the housing, the first outlet being arranged on the other side of the housing, and the plurality of second outlets being arranged on the bottom of the housing, the liquid inlet being adapted to be connected to a liquid source so that the liquid in the liquid source is separated into a heavy phase solution and a light phase solution in the housing, the first outlet being adapted to allow the light phase solution to flow out, and the second outlets being adapted to allow the heavy phase solution to flow out; a plurality of partition plates arranged in the housing along the length direction of the housing to divide the chamber into a plurality of sub-chambers, the partition plates being provided with through holes penetrating the partition plates along the length direction of the housing so that two adjacent sub-chambers are in communication through the through holes, and the chamber is in communication with at least one second outlet; a buffer plate arranged in the housing and spaced apart from the liquid inlet, the plurality of partition plates comprising a first plate and a second plate, the first plate and the second plate being arranged in the housing and spaced apart along the length direction of the housing to divide the chamber into a first sub-chamber, a second sub-chamber and a third sub-chamber, the lower end of the first plate being spaced apart from the inner circumferential surface of the housing to form a first through hole, the second plate being provided with a second through hole and a third through hole penetrating the second plate along the width direction of the housing, the second through hole being formed in the lower end of the second plate, and the third through hole being located above the second through hole and spaced apart from the second through hole along the up-down direction, the plurality of second outlets comprising a first sub-outlet and a second sub-outlet, the first sub-outlet being arranged on the bottom of the housing and in communication with the first through hole so that the heavy phase solution in the first sub-chamber and the second sub-chamber flows out from the first sub-outlet, and the second sub-outlet being arranged on the bottom of the housing and in communication with the third sub-chamber so that the heavy phase solution in the third sub-chamber flows out from the second sub-outlet; a first overflow plate extending along the up-down direction, the first overflow plate being arranged in the first sub-chamber to divide the first sub-chamber into a first sub-sub-chamber and a second sub-sub-chamber, the first overflow plate being provided with a first overflow hole and a second overflow hole penetrating the first overflow plate along the length direction of the housing, the first overflow hole being arranged adjacent to the bottom of the housing, and the second overflow hole being arranged above the first overflow hole and spaced apart from the first overflow hole along the up-down direction; a second overflow plate extending along the up-down direction, the second overflow plate being arranged in the second sub-chamber to divide the second sub-chamber into a third sub-sub-chamber and a fourth sub-sub-chamber, the second overflow plate being provided with a third overflow hole penetrating the second overflow plate along the length direction of the housing, and the third overflow hole being higher than the first through hole. A first detection member is arranged in the first cavity and located at the upper end surface of the shell, and is used to detect the liquid level and the phase interface in the first cavity. When the third overflow hole is higher than the first through hole and lower than the first outlet, the first sub-outlet is opened to make the heavy phase liquid in the second sub-cavity flow out of the first sub-outlet. A second detection member is arranged in the third cavity and located at the upper end surface of the shell, and is used to detect the liquid level and the phase interface in the third cavity. When the second through hole is higher than the first outlet and lower than the second sub-outlet, the second sub-outlet is opened to make the heavy phase liquid in the third cavity flow out of the first sub-outlet, which can effectively prevent the light phase liquid in the third cavity from flowing out of the third cavity through the second sub-outlet.

2. The phase splitter of claim 1, wherein, Further comprising: A first pump is in communication with the first outlet, so that the light phase solution is pumped out of the first outlet by the first pump; A plurality of second pumps are in communication with a plurality of second outlets, so that the heavy phase solution is pumped out of the second outlets by the second pumps.

3. The phase splitter of claim 1, wherein, In the projection plane perpendicular to the length direction of the shell, the projection of the liquid inlet is located in the buffer plate.

4. The phase splitter of claim 1, wherein, Further comprising an overflow member having an overflow groove and arranged in the chamber, the overflow groove being in communication with the first outlet so that the light phase solution in the chamber flows into the overflow groove.

5. The phase splitter of claim 4, wherein, Further comprising a third detection member arranged in the chamber, the third detection member being used to detect the liquid level of the light phase solution in the overflow groove.

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