separator

Abstract

The utility model discloses a separator relates to pharmaceutical chemical industry separation technical field. Among them, the separator includes at least two separation units, and the chamber is formed in the separation unit, and the chamber is equipped with the separation membrane and is divided into the first space, the second space, and the separation unit has the import, the export with the first space intercommunication, and the separation mouth with the second space intercommunication, when carrying out material separation, through the pipeline makes one of the separation unit on the export and the import on another separation unit intercommunication, makes the outside material in turn flows through two separation units, and the material flows in the chamber in the separation unit, and is separated by the separation membrane, makes the product that can pass through the separation membrane and is discharged outward through the separation mouth, and the product that can not pass through the separation membrane is discharged outward through the export on the separation unit, realizes the separation process of chemical raw materials, because setting at least two separation units, realizes the continuous separation and extraction process of chemical raw materials, and greatly improves the separation efficiency of chemical raw materials.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical and chemical separation technology, and in particular to a separator. Background Technology

[0002] In the fields of chemical engineering and pharmaceuticals, heterogeneous phase separation is required, such as the separation of oil and water phases, and liquid-liquid heterogeneous phase separation. This can be achieved by utilizing the incompatibility of amphoteric substances. Usually, the oil and water phases also have different densities, thus separating them into heavy and light phases. In addition, there are other methods such as centrifugation and membrane separation for heterogeneous phase separation.

[0003] Membrane separation is a fast and simple separation method with great potential. However, the current separation efficiency of some membrane separators is low, which restricts the separation efficiency of raw materials in the pharmaceutical and chemical fields. Utility Model Content

[0004] The main purpose of this invention is to propose a separator that aims to improve the current problem of low separation efficiency in separators.

[0005] To achieve the above objectives, this utility model proposes a separator, comprising: At least two separation sections are provided, and at least two of the separation sections have chambers formed within them; and A separation membrane is disposed within the separation section, dividing the chamber into a first space and a second space. The separation section is provided with an inlet and an outlet communicating with the first space, and a separation port communicating with the second space. The outlet on one of the separation sections is connected to the inlet on the other separation section.

[0006] In one embodiment, the separating section includes: A first housing, wherein a first cavity is provided within the first housing, and the first cavity penetrates one side of the first housing along its height direction; and A second housing is joined and connected to the first housing. The second housing has a second cavity inside, which extends through the side where the second housing and the first housing are joined in the height direction of the second housing. The first housing and the second housing are joined and connected so that the first cavity and the second cavity are joined together to form the chamber. The separation membrane is clamped between the first housing and the second housing, so that the first cavity constitutes the first space and the second cavity constitutes the second space.

[0007] In one embodiment, the separator further includes a sealing ring, which is clamped between the first housing and the second housing, and the sealing ring is in pressure contact with the separation membrane.

[0008] In one embodiment, the separator further includes an annular protrusion, which is coaxially disposed within the first cavity and spaced apart from the inner circumferential side of the first cavity, such that the gap between them forms a clamping cavity. The sealing ring is clamped in the clamping cavity, and the portion of the first cavity located inside the annular protrusion forms the first space.

[0009] In one embodiment, the outer peripheral edge of the separation membrane protrudes outward from the outer peripheral edge of the sealing ring.

[0010] In one embodiment, the separation port is formed on the second housing and communicates with the outside and the second cavity; The inlet and the outlet are formed on the second housing, and the inlet and the outlet are connected to the outside and the first cavity.

[0011] In one embodiment, a support portion extending radially along the separation port is formed on the bottom wall of the second cavity on the side away from the first housing, and the support portion has a plurality of portions, which are arranged circumferentially around the separation port. The gap between two adjacent support portions forms a flow channel, and the flow channel is connected to the separation port; The separation membrane is in contact with the support portion on the side facing the support portion.

[0012] In one embodiment, a branch channel is formed between two adjacent flow channels, the branch channel being used to connect the two adjacent flow channels; The branch channels are provided in multiple ways, and the multiple branch channels are arranged at radial intervals along the separation port.

[0013] In one embodiment, the support portion includes a plurality of support sub-ports, and the plurality of support sub-ports are arranged at radial intervals along the separation port; The branch channel is formed by the interval between two adjacent support sub-parts in the radial direction of the separation port.

[0014] In one embodiment, the diameter of the inlet pipe is larger than the diameter of the outlet pipe.

[0015] This utility model separator includes at least two separation sections, each containing a chamber. A separation membrane is installed within each chamber, dividing it into a first space and a second space. Each separation section has an inlet and an outlet communicating with the first space, and a separation port communicating with the second space. During material separation, a pipeline connects the outlet of one separation section to the inlet of another, allowing external materials to flow sequentially through at least two separation sections. As the materials flow within the chambers of each separation section, they are separated by the separation membrane. Products that can permeate the membrane are discharged through the separation port, while products that cannot permeate the membrane are discharged through the outlet of the separation section, thus achieving the separation process of chemical raw materials. By providing at least two separation sections, continuous (at least two-stage) separation and continuous (at least two-stage) extraction processes for chemical raw materials are realized, greatly improving the separation efficiency of chemical raw materials. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the separator of this utility model; Figure 2 This is a schematic diagram of the separator of this utility model from another perspective; Figure 3 This is an exploded view of the overall structure of the separator of this utility model; Figure 4 This is an exploded view of the separator of this utility model from another perspective; Figure 5 This is a cross-sectional view of the separation section of the separator of this utility model; Figure 6 This utility model separator Figure 5 Enlarged schematic diagram of the structure at point A in the middle; Figure 7 This is a schematic diagram of the second housing structure of the separator of this utility model; Figure 8 This is a schematic diagram illustrating the separation process of one of the separation products in the separator of this utility model; Figure 9 This is a schematic diagram illustrating the separation process of another separation product in the separator of this utility model.

[0018] Explanation of icon numbers: 1. Separation section; 11. First housing; 111. First cavity; 112. Annular protrusion; 113. Clamping cavity; 114. Threaded hole; 115. Inlet; 116. Outlet; 12. Second housing; 121. Second cavity; 122. Support section; 1221. Support sub-section; 123. Perforation; 124. Separation port; 2. Separation membrane; 3. Sealing ring; 4. Flow channel; 5. Branch channel; 6. Bolt; 7. Frame; 71. Receiving cavity.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] In the chemical and pharmaceutical industries, heterogeneous phase separation is required, such as the separation of oil and water phases, and liquid-liquid heterogeneous phase separation. This separation utilizes amphoteric incompatibility, and the oil and water phases often have different densities, thus separating them into heavy and light phases. In addition, there are centrifugal separation, membrane separation, and other methods for heterogeneous phase separation. Membrane separation is fast and simple, and is a very promising separation method. However, the separation efficiency of some current membrane separators is relatively low, which limits the separation efficiency of raw materials in the pharmaceutical and chemical fields.

[0024] Based on this, refer to Figure 1 , Figure 2 , Figure 5 As shown, this application embodiment provides a separator, including a separation section 1; wherein, at least two separation sections 1 are provided, and each separation section 1 has a chamber formed therein; a separation membrane 2 is provided in the separation section 1, and the chamber formed in the separation section 1 is divided into a first space and a second space, and the separation section 1 is provided with an inlet 115 and an outlet 116 communicating with the first space, and a separation port 124 communicating with the second space.

[0025] In this embodiment, as Figure 8 As shown, it also includes pipelines (represented by lines in the figure). Outlet 116 and inlet 115 are respectively connected to pipelines, allowing the chemical raw materials to be separated to be transported to the chamber via inlet 115. The chemical raw materials entering the chamber are separated by the separation membrane 2, meaning that the material that can pass through the separation membrane 2 (denoted as separation product one) passes through the separation membrane 2 and enters the second space, and is then discharged to the outside through the separation port 124 connected to the second space. It can be understood that, as... Figure 9 As shown, the separation port 124 is also connected to a pipeline for conveying and collecting the separation product to the outside; while the material that fails to pass through the separation membrane 2 (referred to as separation product 2) is discharged to the outside through the outlet 116 and collected through the pipeline, thereby completing the preliminary separation and extraction process of the chemical raw materials.

[0026] Furthermore, to improve the separation efficiency of chemical raw materials, at least two separation units 1 are set up, that is, the two separation units 1 are connected by pipelines, such as... Figure 8 As shown, the outlet 116 of one separation unit 1 is connected to the inlet 115 of another separation unit 1 via a pipeline, thereby enabling the chemical raw material to re-enter the other separation unit 1 after primary separation and continue the secondary separation process. The secondary separation can perform a finer separation of the residual phase after primary separation, thereby improving separation efficiency and purity. Through multi-stage separation, impurities can be gradually removed, and the purity of the target phase can be improved.

[0027] In this embodiment, as Figure 8 , Figure 9As shown, most of the separation product 1 is discharged from the separation port 124 on the first separation section 1 after primary separation, while a small portion of the separation product 1 is discharged from the separation port 124 on the second separation section 1 after secondary separation. Thus, the separation process of the separation product 1 is completed through two-stage separation and extraction. It can be understood that, as... Figure 8 As shown, a three-way valve can be installed on the pipeline connecting the inlet 115 and outlet 116 of the two separation sections 1 to achieve feeding or adding another material to meet production needs.

[0028] It is understandable that the selection and application of separation membranes vary depending on the application scenario, requiring the selection of appropriate separation membranes based on membrane type, pore size, and other factors. Additionally, a suitable pump body should be connected according to actual needs, such as a horizontal flow pump or a peristaltic pump, with a horizontal flow pump being preferred. The inlet and outlet material pipelines should be connected, and the chemical raw material fluid should be pumped in at a certain flow rate. In this embodiment, based on actual needs, the pump power is set to control the flow rate of the fluid in the pipeline, thereby meeting the separation requirements of the chemical raw material separation process.

[0029] Reference Figure 3 , Figure 4 As shown, in one embodiment of this application, the separation part 1 includes a first housing 11 and a second housing 12; wherein, the first housing 11 is provided with a first cavity 111, such as... Figure 3 As shown, in the height direction of the first housing 11, a first cavity 111 penetrates one side of the first housing 11; the second housing 12 is spliced ​​and connected to the first housing 11, and a second cavity 121 is provided inside the second housing 12, as shown... Figure 4 As shown, in the height direction of the second housing 12, the second cavity 121 penetrates the side where the second housing 12 is joined to the first housing 11; when the first housing 11 and the second housing 12 are joined together, the first cavity 111 and the second cavity 121 are joined to form a chamber; as shown Figure 5 As shown, the separation membrane 2 is sandwiched between the first housing 11 and the second housing 12, such that the first cavity 111 constitutes the first space and the second cavity 121 constitutes the second space.

[0030] In this embodiment, the first housing 11 and the second housing 12 are assembled and connected to form the aforementioned separation part 1. For example, a structure for assembling and connecting the first housing 11 and the second housing 12 is provided, such as... Figure 3 , Figure 4 , Figure 5As shown, a threaded hole 114 is provided on one of the first housing 11 and a through hole 123 is provided on the other. In this embodiment, the threaded hole 114 on the first housing 11 is used as an example. The bolt 6 is passed through the through hole 123 and the bolt 6 and the threaded hole 114 on the first housing 11 are threaded together, thereby realizing the splicing connection and fixation between the first housing 11 and the second housing 12.

[0031] In this embodiment, since the separation membrane 2 is clamped between the first housing 11 and the second housing 12, when the first housing 11 and the second housing 12 are spliced ​​and fixed by bolts 6, the separation membrane 2 is clamped and fixed between the first housing 11 and the second housing 12 and used for the separation and extraction process of chemical raw materials.

[0032] In this embodiment, the first shell 11 and the second shell 12 need to have good chemical corrosion resistance, high temperature resistance and other properties, for example, they can be Teflon (PTFE) material.

[0033] Reference Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, in one embodiment of this application, the separator further includes a sealing ring 3, which is clamped between the first housing 11 and the second housing 12, and the sealing ring 3 is in abutting contact with the separation membrane 2.

[0034] In this embodiment, a sealing ring 3 is provided at the joint of the first housing 11 and the second housing 12. When the first housing 11 and the second housing 12 are joined by bolts 6, the sealing ring 3 sandwiched between the first housing 11 and the second housing 12 can be squeezed and deformed appropriately. Due to the pressure contact between the sealing ring 3 and the separation membrane 2, the gap at the joint of the first housing 11 and the second housing 12 is sealed, thereby improving the sealing performance of the chamber formed by the first cavity 111 and the second cavity 121 and preventing leakage of chemical raw materials when they flow through the chamber.

[0035] In this embodiment, the sealing ring 3 is a perfluoroelastomer sealing ring, such as a perfluoroether rubber sealing ring, which has high temperature resistance, chemical corrosion resistance, low compression set, and excellent weather resistance; it can maintain stable sealing performance in extreme high temperature environments, and its temperature resistance range can typically reach -20℃ to 327℃; and it has extremely high resistance to most chemicals (including strong acids, strong alkalis, organic solvents, etc.); under long-term compression, it can maintain good resilience performance to ensure the durability of the seal.

[0036] Reference Figure 3 , Figure 5 , Figure 6As shown, in one embodiment of this application, the separator further includes an annular protrusion 112, which is coaxially disposed in the first cavity 111, and the annular protrusion 112 and the inner circumferential side of the first cavity 111 are spaced apart so that the gap between them forms a clamping cavity 113; the sealing ring 3 is clamped in the clamping cavity 113, and the first cavity 111 located inside the annular protrusion 112 forms a first space.

[0037] In this embodiment, in order to achieve better positioning of the sealing ring 3, such as Figure 3 , Figure 6 As shown, an annular protrusion 112 is coaxially provided in the first cavity 111, and the space between the outer periphery of the annular protrusion 112 and the inner periphery of the first cavity 111 forms a clamping cavity 113 for restricting the sealing ring 3, so that the sealing ring 3 is at least partially accommodated in the clamping cavity 113. Thus, when the first housing 11 and the second housing 12 are assembled and fixed, the sealing ring 3 is restricted in the clamping cavity 113, thereby improving the positioning effect of the sealing ring 3. When the separation membrane 2 needs to be replaced or repaired, the clamping cavity 113 helps the operator to quickly position the separation membrane 2 in the required installation position, thereby improving work efficiency.

[0038] In this embodiment, the first cavity 111 located inside the annular protrusion 112 constitutes the aforementioned first space, that is, the chemical raw material fluid completes the separation and extraction process in the part located inside the annular protrusion 112 (first space).

[0039] Reference Figure 5 , Figure 6 As shown in one embodiment of this application, when setting the separation membrane 2, the outer peripheral edge of the separation membrane 2 protrudes outward beyond the outer peripheral edge of the sealing ring 3, so as to prevent the chemical raw material fluid entering the first space from entering the second space through the gap between the first shell 11 and the second shell 12 without passing through the separation membrane 2, thereby achieving more precise separation and extraction of chemical raw materials and improving the fineness of separation.

[0040] In this embodiment, the outer peripheral edge of the separation membrane 2 protrudes outward from the outer peripheral edge of the sealing ring 3, thereby ensuring that the chemical raw material fluid (material that can pass through the separation membrane 2) entering the first space can only enter the second space through the separation membrane 2, and will not enter the second space through the gap at the joint between the first shell 11 and the second shell 12, thereby improving the separation accuracy.

[0041] Reference Figure 3 , Figure 5As shown, in one embodiment of this application, a separation port 124 is formed on the second housing 12, and the separation port 124 communicates with the outside and the second cavity 121; as Figure 4 , Figure 5 As shown, inlet 115 and outlet 116 are formed on the second housing 12, and inlet 115 and outlet 116 are connected to the outside and the first cavity 111.

[0042] In this embodiment, as Figure 5 As shown, the chemical raw material fluid first enters the first space through inlet 115. Then, the material that can pass through the separation membrane 2 passes through the separation membrane 2 and enters the second space, and is finally discharged out through the separation port 124. The material that cannot pass through the separation membrane 2 is discharged out through outlet 116 or enters another separation section 1 through the pipeline from outlet 116, and undergoes a two-stage separation and extraction process.

[0043] Understandably, to achieve better separation, a pressure difference, or transmembrane pressure difference, is required across the separation membrane 2. For example, a transmembrane pressure difference of 0.5-1.5 bar is typically preferable. This transmembrane pressure difference can be achieved by adjusting the pump's delivery pressure, or by adjusting the orifice size of the inlet 115 and outlet 116. Figure 5 As shown, the aperture of the inlet 115 is set to be larger than the aperture of the outlet 116, thereby ensuring that the amount of fluid entering the first space through the inlet 115 per unit time is greater than the amount of fluid exiting the first space through the outlet 116. This results in the pressure in the first space being higher than the pressure in the second space, thereby achieving transmembrane pressure difference to achieve rapid and efficient transmembrane separation, and the structure is simple to set up.

[0044] In this embodiment, the pump body can be controlled to drive the chemical raw material fluid to flow at a certain flow rate, and under the combined effect of the difference in orifice diameter between the inlet 115 and the outlet 116, a pressurization effect is achieved, basically eliminating the need for additional pressurization devices.

[0045] Reference Figure 7 As shown, in one embodiment of this application, a support portion 122 extending radially along the separation port 124 is formed on the bottom wall of the second cavity 121 away from the first housing 11, and there are multiple support portions 122, which are arranged circumferentially around the separation port 124; the interval between two adjacent support portions 122 forms a flow channel 4, and each flow channel 4 is connected to the separation port 124; the separation membrane 2 is in pressure contact with the support portion 122 on the side facing the support portion 122; the side of the support portion 122 facing the first housing 11 needs to be flush with the side of the second housing 12 facing the first housing 11 (excluding the area of ​​the second cavity 121), thereby achieving the support effect for the separation membrane 2.

[0046] In this embodiment, as Figure 5, Figure 6 As shown, by providing multiple support portions 122 on the bottom wall of the second cavity 121 away from the first housing 11, when the separation membrane 2 is sandwiched between the first housing 11 and the second housing 12, the multiple support portions 122 can provide a certain support effect for the separation portion 1, so as to prevent the separation membrane 2 from deforming due to the transmembrane pressure difference, thereby ensuring the stability of the separation membrane 2 in use.

[0047] In this embodiment, multiple support portions 122 are arranged axially spaced around the separation port 124. While ensuring reliable support for the separation portion 1 using multiple support portions 122, the separation product passing through the separation membrane 2 can also flow through multiple flow channels 4 communicating with the separation port 124 to the separation port 124 when passing through the separation membrane 2, and finally be discharged outward from the separation port 124, thereby enhancing the efficiency of transmembrane crossing.

[0048] Reference Figure 7 As shown, in one embodiment of this application, a branch channel 5 is formed between two adjacent flow channels 4, and the branch channel 5 is used to connect the two adjacent flow channels 4; multiple branch channels 5 are provided, and the multiple branch channels 5 are arranged radially at intervals along the separation port 124; the branch channel 5 enables the connection between two adjacent flow channels 4, thereby realizing that each flow channel 4 can be interconnected, improving the conveying efficiency of the separation product after passing through the separation membrane 2 from the first space to the separation port 124.

[0049] Reference Figure 7 As shown, in one embodiment of this application, the support portion 122 includes a plurality of support sub-portions 1221, and the plurality of support sub-portions 1221 are arranged at radial intervals along the separation port 124; in the radial direction of the separation port 124, the interval between two adjacent support sub-portions 1221 forms a branch channel 5; as shown Figure 7 As shown, in the radial direction of the separation port 124, branch channels 5 are formed between multiple spaced separation sub-sections, thereby enabling two adjacent flow channels 4 to be connected through multiple branch channels 5, thereby improving the efficiency of conveying the separation product that has passed through the separation membrane 2 and entered the second space to the separation port 124.

[0050] In this embodiment, the separator also includes a frame 7, and the frame 7 is provided with two accommodating cavities 71 at intervals for accommodating the separation part 1. The size of the accommodating cavity 71 is matched with the size of the separation part 1, thereby enabling the separation part 1 to be clamped and positioned in the accommodating cavity 71 when it is placed in the accommodating cavity 71, ensuring the installation stability of the separation part 1.

[0051] It is understood that the corresponding piping in this solution is not shown in the diagram, but only in... Figure 8 , Figure 9The diagram illustrates that those skilled in the art can set appropriate pipeline connection methods according to actual conditions, namely, the connection methods between the pipeline and the inlet 115, outlet 116 and separation port 124, and ensure the sealing of the connection between the pipeline and the aforementioned inlet 115, outlet 116 and separation port 124 to avoid leakage of chemical raw materials.

[0052] In this embodiment, after the separator is used, it should be thoroughly cleaned, for example, by rinsing with solvent / water after use; if a liquid containing salt is used, rinsing can be used; note: if the cleaning solvent residue can change the polarity of the separation membrane, it will affect the separation effect, and the separation section 1 needs to be opened and dried.

[0053] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A separator, characterized in that, include: The separation section is provided at least two, and at least two of the separation sections have chambers formed therein; as well as A separation membrane is disposed within the separation section, dividing the chamber into a first space and a second space. The separation section is provided with an inlet and an outlet communicating with the first space, and a separation port communicating with the second space. The outlet on one of the separation sections is connected to the inlet on the other separation section.

2. The separator as described in claim 1, characterized in that, The separation section includes: A first housing, wherein a first cavity is provided within the first housing, and the first cavity penetrates one side of the first housing along its height direction; and A second housing is joined and connected to the first housing. The second housing has a second cavity inside, which extends through the side where the second housing and the first housing are joined in the height direction of the second housing. The first housing and the second housing are joined and connected so that the first cavity and the second cavity are joined together to form the chamber. The separation membrane is clamped between the first housing and the second housing, so that the first cavity constitutes the first space and the second cavity constitutes the second space.

3. The separator as described in claim 2, characterized in that, The separator also includes a sealing ring, which is clamped between the first housing and the second housing, and the sealing ring is in pressure contact with the separation membrane.

4. The separator as described in claim 3, characterized in that, The separator also includes an annular protrusion, which is coaxially disposed in the first cavity and spaced apart from the inner circumferential side of the first cavity so that the gap between them forms a clamping cavity. The sealing ring is clamped in the clamping cavity, and the portion of the first cavity located inside the annular protrusion forms the first space.

5. The separator as described in claim 3, characterized in that, The outer peripheral edge of the separation membrane protrudes outward from the outer peripheral edge of the sealing ring.

6. The separator as described in claim 2, characterized in that, The separation port is formed on the second housing and is connected to the outside and the second cavity; The inlet and the outlet are formed on the second housing, and the inlet and the outlet are connected to the outside and the first cavity.

7. The separator as claimed in claim 6, characterized in that, A support portion extending radially along the separation port is formed on the bottom wall of the second cavity on the side away from the first housing, and the support portion has multiple portions, which are circumferentially spaced around the separation port. The gap between two adjacent support portions forms a flow channel, and the flow channel is connected to the separation port; The separation membrane is in contact with the support portion on the side facing the support portion.

8. The separator as claimed in claim 7, characterized in that, A branch channel is formed between two adjacent flow channels, and the branch channel is used to connect the two adjacent flow channels. The branch channels are provided in multiple ways, and the multiple branch channels are arranged at radial intervals along the separation port.

9. The separator as claimed in claim 8, characterized in that, The support portion includes a plurality of support sub-parts, and the plurality of support sub-parts are arranged at radial intervals along the separation port; The branch channel is formed by the interval between two adjacent support sub-parts in the radial direction of the separation port.

10. The separator according to any one of claims 1-9, characterized in that, The diameter of the inlet pipe is larger than the diameter of the outlet pipe.

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