Membrane separation device capable of reducing membrane pollution and used for medicine separation

Abstract

The invention relates to a medicine separation membrane separation device capable of reducing membrane pollution, which comprises a frame body and a filter frame fixedly mounted in the frame body, liquid medicine firstly flows into a barrel body through a water inlet pipe, the barrel body is filled with the liquid medicine, the liquid medicine is firstly filtered by a filter element in the barrel body, the liquid medicine filtered by the filter element enters a connecting pipe in the filter element, and the filter element is connected with the frame body. The connecting pipe is communicated with the bent pipe, pretreated liquid medicine enters the filtering frame through the upper pipe, and the liquid medicine in the filtering frame is firstly filtered by the plurality of first membranes, then is treated by the second membrane and finally flows out of the discharge pipe. The first membrane and the second membrane in the filter frame are cleaned, impurities fall to the inner bottom of the filter frame, the two air cylinders can be started to drive the sealing bottom plate to move downwards, the impurities are discharged through the supporting frame, finally, the impurities are discharged through the blow-down valve, and cleaning of the first membrane and the second membrane is completed.

Description

Technical Field

[0001] The invention relates to the technical field of drug separation equipment, in particular to a membrane separation device for drug separation capable of reducing membrane pollution. Background Art

[0002] The membrane separation device for drug separation is a device specially designed for drug separation and purification. Its core lies in utilizing the selective permeability of the membrane to achieve separation and purification of different components in the solution according to the size, charge, solubility and other characteristics of the substance. The membrane separation device utilizes natural or artificially synthesized polymer films to separate, grade, purify and enrich two-component or multi-component solutes and solvents with the driving force of external energy or chemical potential difference. The process of solvent passing through the membrane is called osmosis, and the process of solute passing through the membrane is called dialysis. In the prior art, during the use of the membrane separator for drug separation, its cleaning process is relatively cumbersome and the cleaning effect is poor, which can easily lead to blockage of the separation membrane and reduce the service life of the separation membrane. At the same time, there is a lack of pretreatment equipment for pretreatment of medical drugs, resulting in more serious pollution of the separation membrane.

[0003] For example, a membrane separation device disclosed in an authorized patent document with application number CN201810990339.9. The device includes: a front pressing plate, a rear pressing plate; a plurality of feed side support plates, separation membranes and a plurality of discharge side support plates are sequentially arranged between the front pressing plate and the rear pressing plate; wherein the feed side support plate and the discharge side support plate are arranged with the separation membrane as a spacer; the front pressing plate and the rear pressing plate press the feed side support plate, the separation membrane and the discharge side support plate to form a sealed cavity; the feed side support plate and the discharge side support plate are sheet structures formed by partial fusion of a wire mesh and a resin material. The present invention can install more separation membranes in the same volume. Compared with the membrane separation device using a columnar separation membrane, the present invention effectively reduces the volume of the equipment.

[0004] The above patent has the problem that during the use of the membrane separator for drug separation, its cleaning process is relatively complicated and the cleaning effect is poor, which easily leads to blockage of the separation membrane and reduces the service life of the separation membrane. At the same time, there is a lack of pretreatment equipment for pretreatment of medical drugs, resulting in serious contamination of the separation membrane. Therefore, we need to provide a membrane separation device for drug separation that can reduce membrane contamination. Summary of the invention

[0005] The object of the present invention is to provide a membrane separation device for drug separation which can reduce membrane pollution, wherein the drug liquid first flows into the barrel body through the water inlet pipe, the drug liquid is filled into the barrel body, and is first filtered by the filter element in the barrel body, and the drug liquid filtered by the filter element enters the connecting pipe inside the filter element, and the connecting pipe is connected with the elbow pipe, and the pretreated drug liquid enters the filter frame through the upper pipe, wherein the drug liquid in the filter frame is first filtered through several first membranes, and then processed through the second membrane, and finally flows out from the discharge pipe. After long-term use, the first membrane and the second membrane are both attached with The first and second membranes in the filter frame are cleaned by debris and are seriously polluted. The ultrasonic generator on the top of the filter frame is started to clean the first membrane and the second membrane in the filter frame. The debris falls to the bottom of the filter frame, and the two cylinders are started to drive the sealing bottom plate to move downward, so that the debris is discharged through the support frame and finally discharged through the drain valve to complete the cleaning of the first membrane and the second membrane. At the same time, the liquid medicine in the barrel is pretreated to intercept large particles of debris, which also serves the purpose of reducing membrane pollution and solves the problem of pretreatment of medical drugs by pretreatment equipment in the above background technology, resulting in serious pollution of the separation membrane.

[0006] To achieve the above object, the present invention provides the following technical solution: a membrane separation device for drug separation capable of reducing membrane contamination, comprising:

[0007] A frame and a filter frame fixedly installed in the frame;

[0008] The top of the filter frame is connected with an upper tube, the upper end of the upper tube passes through the top of the frame and is connected with a bend pipe, one end of the bend pipe is connected with a pre-treatment component, the pre-treatment component is located at the top of the frame, and the pre-treatment component is used to reduce the pollution of the filter membrane in the filter frame, one side of the filter frame is connected with a discharge pipe, and a purification mechanism is installed inside the filter frame, and the purification mechanism is used to remove impurities on the filter membrane in the filter frame;

[0009] Wherein, the purification mechanism includes an ultrasonic generator fixedly installed on the top of the filter frame, a support frame fixedly installed inside the filter frame, a plurality of first membranes fixedly installed on the top of the support frame, a plurality of the first membranes fixedly installed inside the filter frame, and a second membrane fixedly installed inside the filter frame, the second membrane is located on one side of the support frame, the ultrasonic generator is used in conjunction with the first membrane and the second membrane, and a sewage discharge part is installed inside the filter frame, the sewage discharge part is used to discharge debris cleaned from the first membrane and the second membrane.

[0010] Preferably, the sewage discharge part includes two cylinders fixedly installed on the bottom of the filter frame, and a sealing bottom plate is fixedly installed on the upper end of the two cylinders, the top of the sealing bottom plate is fitted with the bottom of the support frame, and one side of the filter frame is connected to a sewage valve, and a sealing ring is fixedly installed on the top of the sealing bottom plate, the top of the sealing ring is fitted with the bottom of the support frame, and the sealing ring is set as a rubber ring, and the two cylinders are synchronous cylinders.

[0011] Preferably, the pretreatment component includes a barrel body arranged on the top of the frame body, one side of the barrel body is connected with a connecting pipe, the connecting pipe is used in conjunction with one end adjacent to the bent pipe, a sealing cover is threadedly installed on one side of the barrel body, the top of the sealing cover is connected with a water inlet pipe, one end of the bent pipe is provided with a groove, a sealing ring is provided inside the groove, the inside of the groove is slidably installed with the surface of the connecting pipe, a filter core is provided inside the barrel body, one end of the connecting pipe is located inside the connecting core, and the water inlet pipe is located on the top of the connecting core.

[0012] Preferably, an annular protrusion is integrally machined on one side of the inner wall of the barrel body, and the annular protrusion is used to limit the sealing filter element. A sealing ring is fixedly installed on the inner wall of the sealing cover, and the sealing ring is used to seal the other end of the filter element.

[0013] Preferably, a guide groove is provided on the top of the frame, a mounting seat is slidably installed inside the guide groove, the mounting seat is used to place the barrel body, an assembly ring is fixedly installed on the surface of the barrel body, and the bottom of the assembly ring is fixedly installed on the top of the mounting seat by bolts.

[0014] Preferably, a plate body is slidably mounted inside the guide groove, two slide bars are fixedly mounted on one side of the plate body, and the inside of the mounting seat is slidably mounted on the surfaces of the two slide bars.

[0015] Preferably, it also includes a mounting mechanism for fixing the pretreatment part, the mounting mechanism includes a pull plate fixedly mounted on the top of the plate body, a pull frame is hinged on one side of the pull plate, and the inner wall of the pull frame is in contact with the surface of the sealing cover.

[0016] Preferably, an adjusting rod is rotatably installed inside the plate body, the adjusting rod is used for movement and adjustment of the plate body, and the surface of the adjusting rod is threadedly installed with the top of the frame body.

[0017] Preferably, one end of the adjusting rod passes through one side of the frame and is fixedly mounted with a hand wheel, and the hand wheel is configured to be hollow.

[0018] Preferably, a pull groove is provided inside the pull frame, and a cabinet door is hinged on the front side of the frame.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The drug liquid of the present invention first passes through a pretreatment component to intercept and treat large particles of debris in the drug liquid, and the pretreated drug liquid enters the filter frame through an upper tube, wherein the drug liquid in the filter frame first passes through a plurality of first membranes for filtration treatment, and then passes through a second membrane for treatment, and finally flows out from a discharge pipe. After long-term use, debris is attached to both the first membrane and the second membrane, causing serious pollution. By starting an ultrasonic generator on the top of the filter frame, the first membrane and the second membrane in the filter frame are cleaned, and an installation mechanism is provided on the frame to facilitate replacement and installation of the pretreatment component, and the connection between the connecting pipe and the elbow enhances sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a three-dimensional cross-sectional view of the frame of the present invention;

[0023] Figure 3 A three-dimensional diagram of the sewage discharge member of the present invention;

[0024] Figure 4 It is a partial structural stereogram of the present invention;

[0025] Figure 5 It is a three-dimensional cross-sectional view of the barrel of the present invention;

[0026] Figure 6 It is a three-dimensional diagram of the sealing ring of the present invention.

[0027] In the figure: 1, frame; 2, filter frame; 3, upper pipe; 4, elbow; 5, pretreatment part; 51, barrel; 52, connecting pipe; 53, sealing cover; 54, water inlet pipe; 55, groove; 56, filter element; 6, discharge pipe; 7, purification mechanism; 71, ultrasonic generator; 72, support frame; 73, first membrane; 74, second membrane; 70, sewage discharge part; 701, cylinder; 702, sealing bottom plate; 703, sewage valve; 704, sealing ring; 8, annular protrusion; 9, sealing sleeve; 10, guide groove; 11, mounting seat; 12, assembly ring; 13, plate; 14, sliding rod; 15, mounting mechanism; 151, pull plate; 152, pull frame; 16, adjusting rod; 17, hand wheel; 18, pull groove; 19, cabinet door; 20, sealing ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-6 The present invention provides a technical solution: a membrane separation device for drug separation capable of reducing membrane pollution, comprising:

[0030] A frame 1 and a filter frame 2 fixedly installed in the frame 1;

[0031] The top of the filter frame 2 is connected with an upper tube 3, the upper end of the upper tube 3 passes through the top of the frame 1 and is connected with a curved tube 4, one end of the curved tube 4 is connected with a pre-treatment component 5, the pre-treatment component 5 is located at the top of the frame 1, and the pre-treatment component 5 is used to reduce the pollution of the filter membrane in the filter frame 2, one side of the filter frame 2 is connected with a discharge pipe 6, and a purification mechanism 7 is installed inside the filter frame 2, and the purification mechanism 7 is used to remove impurities on the filter membrane in the filter frame 2;

[0032] Among them, the purification mechanism 7 includes an ultrasonic generator 71 fixedly installed on the top of the filter frame 2, a support frame 72 is fixedly installed inside the filter frame 2, a plurality of first membranes 73 are fixedly installed on the top of the support frame 72, a plurality of first membranes 73 are fixedly installed inside the filter frame 2, and a second membrane 74 is fixedly installed inside the filter frame 2, and the second membrane 74 is located on one side of the support frame 72. The ultrasonic generator 71 is used in conjunction with the first membrane 73 and the second membrane 74, and a sewage discharge component 70 is installed inside the filter frame 2, and the sewage discharge component 70 is used to discharge the debris cleaned up from the first membrane 73 and the second membrane 74.

[0033] The sewage discharge part 70 includes two cylinders 701 fixedly installed at the bottom of the filter frame 2, a sealing bottom plate 702 is fixedly installed at the upper end of the two cylinders 701, the top of the sealing bottom plate 702 is in contact with the bottom of the support frame 72, and a sewage discharge valve 703 is connected to one side of the filter frame 2, a sealing ring 704 is fixedly installed at the top of the sealing bottom plate 702, the top of the sealing ring 704 is in contact with the bottom of the support frame 72, and the sealing ring 704 is set as a rubber ring, and the two cylinders 701 are synchronous cylinders 701;

[0034] In this embodiment, the liquid medicine to be treated first flows into the barrel body 51 through the water inlet pipe 54, the liquid medicine is filled into the barrel body 51, and is first filtered by the filter element 56 in the barrel body 51, and the liquid medicine filtered by the filter element 56 enters the connecting pipe 52 inside the filter element 56, and the connecting pipe 52 is connected to the elbow 4, and the pre-treated liquid medicine enters the filter frame 2 through the upper pipe 3, wherein the liquid medicine in the filter frame 2 is first filtered through a plurality of first membranes 73, and then processed through the second membrane 74, and finally flows out from the discharge pipe 6. After long-term use, debris is attached to the first membrane 73 and the second membrane 74, and the pollution is relatively serious. By starting the ultrasonic generator 71 on the top of the filter frame 2, the filter frame 2, the first membrane 73 and the second membrane 74 are cleaned, and the debris falls to the bottom of the filter frame 2. The two cylinders 701 can be started to drive the sealing bottom plate 702 to move downward, so that the debris is discharged through the support frame 72, and finally discharged through the sewage valve 703, completing the cleaning of the first membrane 73 and the second membrane 74. At the same time, the liquid medicine in the barrel body 51 is pre-treated to intercept large particles of debris, which also serves the purpose of reducing membrane pollution. An annular protrusion 8 is provided on one side of the inner wall of the barrel body 51 to limit one end of the filter element 56 and play a sealing role at the same time. A sealing ring 9 is installed on the inner wall of the sealing cover 53 to limit and seal the other end of the filter element 56, so that the liquid medicine needs to pass through the filter element 56 before entering the connecting pipe 52;

[0035] Among them, the basic principle of the ultrasonic generator 71 is to convert the mechanical vibration generated by a piezoelectric device (such as a piezoelectric crystal) into ultrasonic waves through voltage. When a voltage is applied to a piezoelectric crystal, the crystal will undergo movements such as compression and bending, which will cause the medium around the crystal to produce mechanical vibrations and form ultrasonic waves. The frequency, intensity and direction of ultrasonic waves can be controlled by adjusting the characteristics of the piezoelectric crystal; the ultrasonic generator 71 is usually composed of three parts: a signal generator, a power amplifier and a transducer. Among them, the transducer is a key component that is responsible for converting electrical signals into mechanical vibrations to generate ultrasonic waves.

[0036] The pretreatment unit 5 includes a barrel body 51 arranged at the top of the frame body 1, one side of the barrel body 51 is connected with a connecting pipe 52, the connecting pipe 52 is used in conjunction with one end adjacent to the elbow 4, a sealing cover 53 is threadedly installed on one side of the barrel body 51, the top of the sealing cover 53 is connected with a water inlet pipe 54, one end of the elbow 4 is provided with a groove 55, a sealing ring 20 is arranged inside the groove 55, the inside of the groove 55 is slidably installed with the surface of the connecting pipe 52, a filter core 56 is arranged inside the barrel body 51, one end of the connecting pipe 52 is located inside the connecting core, and the water inlet pipe 54 is located at the top of the connecting core;

[0037] Specifically, the medicine liquid first flows into the barrel body 51 through the water inlet pipe 54. The medicine liquid is filled into the barrel body 51 and is first filtered by the filter element 56 in the barrel body 51. The medicine liquid filtered by the filter element 56 enters the connecting pipe 52 inside the filter element 56 to achieve pretreatment of the medicine liquid, intercept larger particles of debris, and avoid both larger particles and smaller particles of debris concentrating on the first membrane 73, which will reduce the fluidity of the medicine liquid and easily cause blockage. When selecting the filter element 56 for pretreatment filtration of the medicine liquid, the following factors need to be considered: the characteristics of the medicine liquid: including the viscosity of the medicine liquid, the formula composition and the required filtration accuracy; the purpose of filtration: whether to clarify the medicine liquid, remove impurities, or perform sterilization filtration; the material of the filter element: select the appropriate filter element material according to the chemical compatibility of the medicine liquid; different types of filter elements 56 can be replaced as needed.

[0038] An annular protrusion 8 is integrally processed on one side of the inner wall of the barrel body 51, and the annular protrusion 8 is used to limit the sealing filter element 56. A sealing ring 9 is fixedly installed on the inner wall of the sealing cover 53, and the sealing ring 9 is used to seal the other end of the filter element 56;

[0039] It is worth noting that an annular protrusion 8 is provided on one side of the inner wall of the barrel body 51 to limit one end of the filter element 56 and also to play a sealing role, and a sealing ring 9 is installed on the inner wall of the sealing cover 53 to limit and seal the other end of the filter element 56, so that the medicinal solution needs to pass through the filter element 56 before entering the connecting pipe 52.

[0040] A guide groove 10 is provided at the top of the frame 1, and a mounting seat 11 is slidably installed inside the guide groove 10. The mounting seat 11 is used to place the barrel body 51. A mounting ring 12 is fixedly installed on the surface of the barrel body 51, and the bottom of the mounting ring 12 is fixedly installed on the top of the mounting seat 11 by bolts.

[0041] It should be noted that the guide groove 10 on the top of the frame 1 is used for moving the mounting seat 11 to facilitate the removal and installation of the pre-treatment, and the barrel body 51 is fixed to the mounting seat 11 by the assembly ring 12 to facilitate the removal of the barrel body 51.

[0042] A plate body 13 is slidably mounted inside the guide groove 10, two slide bars 14 are fixedly mounted on one side of the plate body 13, and the inside of the mounting seat 11 is slidably mounted on the surfaces of the two slide bars 14;

[0043] It is worth noting that two slide bars 14 are arranged on one side of the plate body 13 , and the surfaces of the two slide bars 14 are slidably mounted in the mounting seat 11 , which enhances the guidance of the movement of the mounting seat 11 and facilitates the alignment installation of the mounting seat 11 .

[0044] It also includes a mounting mechanism 15 for fixing the pre-treatment member 5, the mounting mechanism 15 includes a pull plate 151 fixedly mounted on the top of the plate body 13, a pull frame 152 is hingedly connected to one side of the pull plate 151, and the inner wall of the pull frame 152 is in contact with the surface of the sealing cover 53;

[0045] Specifically, after the barrel body 51 is fixed on the mounting seat 11, the mounting seat 11 is placed in the guide groove 10, and the pull frame 152 is rotated and moved, and the pull plate 151 drives the plate body 13 to move in the guide groove 10 until the pull frame 152 is located on one side of the sealing cover 53 and fits together, and the surface of the adjusting rod 16 is installed with the internal thread of the plate body 13. With the rotation of the adjusting rod 16, the plate body 13 is moved, and the pull frame 152 drives the mounting seat 11 and the barrel body 51 to move, so that the connecting pipe 52 on one side of the barrel body 51 is inserted into the groove 55 on one side of the bent pipe 4, wherein a sealing ring 704 is installed in the groove 55, and the sealing ring 704 is a rubber ring with elastic deformation function, so that the connection between the bent pipe 4 and the connecting pipe 52 is more tightly sealed, and the pretreatment component 5 is convenient to remove and install.

[0046] An adjusting rod 16 is rotatably mounted inside the plate body 13. The adjusting rod 16 is used for movement and adjustment of the plate body 13, and the surface of the adjusting rod 16 is threadedly mounted with the top of the frame body 1.

[0047] Furthermore, the surface of the adjusting rod 16 is threadedly installed with the inner surface of the plate body 13 . With the rotation of the adjusting rod 16 , the plate body 13 is moved, and the pull frame 152 drives the mounting seat 11 and the barrel body 51 to move.

[0048] One end of the adjusting rod 16 passes through one side of the frame 1 and is fixedly mounted with a hand wheel 17, which is hollow;

[0049] Specifically, the hand wheel 17 is arranged at one end of the adjusting rod 16, so as to facilitate the rotation adjustment of the hand wheel 17, and the hand wheel 17 is arranged to be hollow, and the hollow design makes the hand wheel 17 have a significant weight reduction while maintaining sufficient strength, which helps to reduce fatigue during operation and improve work efficiency.

[0050] A pull groove 18 is provided inside the pull frame 152, and a cabinet door 19 is hingedly connected to the front of the frame body 1;

[0051] The pull groove 18 is provided to facilitate the rotation and pulling adjustment of the pull frame 152, and the cabinet door 19 is provided to facilitate the maintenance of the equipment in the frame body 1.

[0052] The liquid medicine of the device first flows into the barrel body 51 through the water inlet pipe 54, and the liquid medicine is filled into the barrel body 51, and is first filtered by the filter element 56 in the barrel body 51, and the liquid medicine filtered by the filter element 56 enters the connecting pipe 52 inside the filter element 56, and the connecting pipe 52 is connected with the elbow 4, and the pre-treated liquid medicine enters the filter frame 2 through the upper pipe 3, wherein the liquid medicine in the filter frame 2 is first filtered by a plurality of first membranes 73, and then processed by the second membrane 74, and finally flows out from the discharge pipe 6. After long-term use, the first membrane 73 As for the second membrane 74, there are impurities attached to it, which causes serious pollution. By starting the ultrasonic generator 71 on the top of the filter frame 2, the first membrane 73 and the second membrane 74 in the filter frame 2 are cleaned, and the impurities fall to the bottom of the filter frame 2. The two cylinders 701 can be started to drive the sealing bottom plate 702 to move downward, so that the impurities are discharged through the support frame 72 and finally discharged through the drain valve 703, completing the cleaning of the first membrane 73 and the second membrane 74. At the same time, the liquid medicine in the barrel body 51 is pre-treated to intercept large particles of impurities, which also serves the purpose of reducing membrane pollution.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A membrane separation device for drug separation capable of reducing membrane fouling, characterized in that: include: A frame (1) and a filter frame (2) fixedly installed in the frame (1); The top of the filter frame (2) is connected to an upper tube (3), the upper end of the upper tube (3) passes through the top of the frame (1) and is connected to a bent tube (4), one end of the bent tube (4) is connected to a pre-treatment component (5), the pre-treatment component (5) is located at the top of the frame (1), and the pre-treatment component (5) is used to reduce the contamination of the filter membrane in the filter frame (2), one side of the filter frame (2) is connected to a discharge pipe (6), and a purification mechanism (7) is installed inside the filter frame (2), and the purification mechanism (7) is used to remove impurities on the filter membrane in the filter frame (2); The purification mechanism (7) comprises an ultrasonic generator (71) fixedly mounted on the top of the filter frame (2); a support frame (72) is fixedly mounted inside the filter frame (2); a plurality of first membranes (73) are fixedly mounted on the top of the support frame (72); the plurality of first membranes (73) are fixedly mounted inside the filter frame (2); a second membrane (74) is fixedly mounted inside the filter frame (2); the second membrane (74) is located on one side of the support frame (72); the ultrasonic generator (71) is used in conjunction with the first membrane (73) and the second membrane (74); a sewage discharge member (70) is mounted inside the filter frame (2); the sewage discharge member (70) is used to discharge debris cleaned from the first membrane (73) and the second membrane (74).

2. A membrane separation device for drug separation capable of reducing membrane contamination according to claim 1, characterized in that: The sewage discharge component (70) comprises two cylinders (701) fixedly mounted on the bottom of the filter frame (2); a sealing bottom plate (702) is fixedly mounted on the upper ends of the two cylinders (701); the top of the sealing bottom plate (702) is in contact with the bottom of the support frame (72); one side of the filter frame (2) is connected to a sewage discharge valve (703); a sealing ring (704) is fixedly mounted on the top of the sealing bottom plate (702); the top of the sealing ring (704) is in contact with the bottom of the support frame (72); the sealing ring (704) is configured as a rubber ring; and the two cylinders (701) are synchronous cylinders (701).

3. A membrane separation device for drug separation capable of reducing membrane contamination according to claim 1, characterized in that: The pretreatment element (5) comprises a barrel body (51) arranged at the top of the frame body (1); one side of the barrel body (51) is connected to a connecting pipe (52); the connecting pipe (52) is used in conjunction with one end adjacent to the bent pipe (4); a sealing cover (53) is threadedly mounted on one side of the barrel body (51); the top of the sealing cover (53) is connected to a water inlet pipe (54); one end of the bent pipe (4) is provided with a groove (55); a sealing ring (20) is arranged inside the groove (55); the inside of the groove (55) is slidably mounted on the surface of the connecting pipe (52); a filter core (56) is arranged inside the barrel body (51); one end of the connecting pipe (52) is located inside the connecting core; and the water inlet pipe (54) is located at the top of the connecting core.

4. A membrane separation device for drug separation capable of reducing membrane contamination according to claim 3, characterized in that: An annular protrusion (8) is integrally machined on one side of the inner wall of the barrel body (51), and the annular protrusion (8) is used to limit the sealing filter element (56). A sealing ring (9) is fixedly mounted on the inner wall of the sealing cover (53), and the sealing ring (9) is used to seal the other end of the filter element (56).

5. A membrane separation device for drug separation capable of reducing membrane contamination according to claim 4, characterized in that: A guide groove (10) is provided on the top of the frame (1), a mounting seat (11) is slidably mounted inside the guide groove (10), the mounting seat (11) is used to place the barrel body (51), a mounting ring (12) is fixedly mounted on the surface of the barrel body (51), and the bottom of the mounting ring (12) is fixedly mounted on the top of the mounting seat (11) by means of bolts.

6. A membrane separation device for drug separation capable of reducing membrane fouling according to claim 5, characterized in that: A plate body (13) is slidably mounted inside the guide groove (10), two slide bars (14) are fixedly mounted on one side of the plate body (13), and the inside of the mounting seat (11) is slidably mounted on the surfaces of the two slide bars (14).

7. A membrane separation device for drug separation capable of reducing membrane contamination according to claim 3, characterized in that: It also includes a mounting mechanism (15) for fixing the pretreatment component (5), the mounting mechanism (15) including a pull plate (151) fixedly mounted on the top of the plate body (13), a pull frame (152) hingedly connected to one side of the pull plate (151), and an inner wall of the pull frame (152) is in contact with the surface of the sealing cover (53).

8. A membrane separation device for drug separation capable of reducing membrane contamination according to claim 7, characterized in that: An adjusting rod (16) is rotatably mounted inside the plate body (13). The adjusting rod (16) is used for movement and adjustment of the plate body (13), and the surface of the adjusting rod (16) is threadedly mounted on the top of the frame body (1).

9. A membrane separation device for drug separation capable of reducing membrane contamination according to claim 8, characterized in that: One end of the adjusting rod (16) passes through one side of the frame (1) and is fixedly mounted with a hand wheel (17), wherein the hand wheel (17) is configured to be hollow.

10. A membrane separation device for drug separation capable of reducing membrane fouling according to claim 7, characterized in that: A pull groove (18) is provided inside the pull frame (152), and a cabinet door (19) is hingedly connected to the front of the frame body (1).

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