CN214782294U - Hollow fiber membrane spinning spray head - Google Patents

Abstract

The utility model discloses a hollow fiber membrane spinning spray head in the technical field of hollow fiber membrane production accessories, wherein the lower end of a first column processed with a core liquid flow passage uses a needle-shaped structure instead of an original columnar structure, the needle-shaped structure is beneficial to the processing of the hollow fiber membrane, and the structure size in the production process of the hollow fiber membrane is convenient to keep; the spinning solution flow channel is provided with a flow guide inclined plane before the core solution flow channel is converged, the inclined plane can effectively change the flow direction of the spinning solution to enable the spinning solution to smoothly turn downwards, internal stress cannot be accumulated due to forced redirection by pressure, the shaking amplitude of filament bundles after filament discharge is smaller, a filament discharge port is provided with a limiting cavity, the oscillation of the filament bundles is further controlled, peripheral installation of nozzles is not influenced, and the installation density of the nozzles can be effectively increased; the sealing ring groove is wider on the base body, so that a sealing ring with a more appropriate size can be installed, the elastic deformation range of the sealing ring is large, and the sealing effect is good.

Description

Hollow fiber membrane spinning spray head

Technical Field

The utility model relates to a hollow fiber membrane production accessory technical field specifically is a hollow fiber membrane spins shower nozzle.

Background

In the biomedical industry, in order to realize the purposes of sieving, exchanging, reacting, purifying and the like of solutes among liquids from different sources, the most common technical means is to distinguish the solutes by natural or synthetic fiber membranes, wherein the membranes are divided into flat sheet membranes and hollow fiber membranes, and the hollow fiber membranes are widely selected and applied due to the characteristics of large effective area per unit volume, self-support and pressure resistance. In the using process, key parameters such as stability of the membrane material, membrane flux, screening coefficient, uniformity of membrane pores, concentricity and the like are mainly concerned. The hollow fiber membrane is mainly formed by processing a spinning raw material into a molten or solution state, shaping and spinning out through a spray head, and then entering a coagulating bath for shaping.

In the spinning process, the structural design and the size control of the spinning nozzle greatly influence the size performance of the spun tows. The existing hollow fiber membrane spinning spray head is mainly combined by an upper group or a lower group or three groups of components, for example, patent 201621115462.9 is assembled when in use, and then a single or multiple groups are put into a spinning spray plate. This problem has also been realized in some hollow fiber spinning nozzle designs, for example, 207418925U adopts the nozzle of integrated design, but it still is similar to the structural design of older technique in the design process, leads to the shower nozzle to install the size great, and the runner design is reasonable inadequately, and the shower nozzle export does not have effectual isolation structure, leads to this shower nozzle in the installation, can not effectively utilize the space on the shower plate, and the installation density can receive the influence. Meanwhile, the flow channel is buried deeply, so that the processing difficulty of the hollow fiber membrane is high, and the processing precision is not easy to control.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hollow fiber membrane spins shower nozzle to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a hollow fiber membrane spinning nozzle comprises a base body, a first column and a limiting cavity; the first column penetrates through and is fixed in the center of the base body, and a core liquid flow passage is arranged in the center of the first column; the limiting cavity is fixedly arranged at the bottom of the base body;

a spinning solution flow channel transversely penetrates through the matrix, a first opening is formed in the center of the upper section of the matrix corresponding to the first spinning solution flow channel, and a second opening is formed in the center of the lower section of the matrix corresponding to the first spinning solution flow channel; the middle section of the first column is arranged in the first opening and is fixedly connected with the matrix through the first opening; the upper section of the first column extends upwards out of the base body, the lower section of the first column is provided with a flow guide inclined plane in a taper angle, and the lower end part of the first column, which is positioned on the flow guide inclined plane, is in a needle shape; the lower section of the first column and the second port form a second spinning solution channel, and the first spinning solution channel is communicated with the second spinning solution channel;

the upper end of the base body is provided with a sealing ring groove corresponding to the first column in the annular direction.

Preferably, the limiting cavity is of a cylindrical structure.

Preferably, the angle between the diversion inclined plane and the outer wall of the middle section of the first column is 60 degrees.

Preferably, the left end and the right end of the matrix are provided with a second column corresponding to the first spinning solution flow channel.

Preferably, the upper end of the base body is provided with a connecting structure for mounting with the spinning jet plate.

Preferably, the connecting structure is an arc-shaped thread plate which is arranged in bilateral symmetry, and a thread knob is screwed on the arc-shaped thread plate.

Preferably, the connecting structure can also be threaded holes uniformly arranged in the circumferential direction.

The utility model has the advantages that:

1. the lower end of the first column for processing the core liquid flow channel adopts a needle-shaped structure instead of an original columnar structure, and the needle-shaped structure is beneficial to processing the hollow fiber membrane and is convenient for keeping the structural size in the production process of the hollow fiber membrane.

2. The lower end of the first column processed with the core liquid flow channel is needle-shaped, so that a guide flow channel with enough length is provided without the size of an excessively thick base body, the base body can be arranged to be wider and thinner, and the processing difficulty is low.

3. The spinning solution flow channel is provided with the flow guide inclined plane before the core solution flow channel is converged, the inclined plane can effectively change the flow direction of the spinning solution to enable the spinning solution to smoothly turn downwards, internal stress cannot be accumulated due to forced redirection by pressure, the shaking amplitude of filament bundles after filament discharge is smaller, the filament discharge port is provided with the limiting cavity, the oscillation of the filament bundles is further controlled, the peripheral installation of the spray heads is not influenced, and the installation density of the spray heads can be effectively increased.

4. The sealing ring groove is wider on the base body, so that a sealing ring with a more appropriate size can be installed, the elastic deformation range of the sealing ring is large, and the sealing effect is good.

5. The second runner simplifies the depth of the second runner to the utmost extent under the condition of ensuring the forming distance between the spinning solution and the core solution, and is convenient to clean when a spray head is blocked carelessly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a cross-sectional view of the base body of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention;

FIG. 3 is a schematic view of an embodiment of the present invention;

fig. 4 is a top view of the embodiment of the present invention;

FIG. 5 is a cross-sectional view of the second embodiment of the present invention;

fig. 6 is a plan view of the second embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the spinning device comprises a base body 1, a spinning solution flow passage 2, a spinning solution flow passage 21, a spinning solution flow passage II, a core liquid flow passage 3, a limiting cavity 4, a column 5, a column II, a flow guide inclined plane 6, a sealing ring groove 7, a column I8, an arc-shaped threaded plate 9, a threaded hole 91, a threaded knob 10 and a spinning spray plate 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to the attached drawings of the specification, the utility model provides a technical scheme: a hollow fiber membrane spinning nozzle comprises a matrix 1, a first column 8 and a limiting cavity 4; the first column 8 penetrates through and is fixed at the center of the base body 1, and a core liquid flow passage 3 is processed at the center of the first column 8; the limiting cavity 4 is fixedly arranged at the bottom of the base body 1;

a first spinning solution flow channel 2 is transversely processed in the matrix 1 in a penetrating manner, a first opening 12 is processed at the center of the upper section of the matrix 1 corresponding to the first spinning solution flow channel 2, and a second opening 13 is processed at the center of the lower section of the matrix 1 corresponding to the first spinning solution flow channel 2; the middle section of the first column 8 is arranged in the first opening 12 and is fixedly connected with the matrix 1 through the first opening 12; the upper section of the first column 8 extends upwards out of the base body 1, the lower section of the first column 8 is provided with a flow guide inclined plane 6 in a taper angle processing mode, and the lower end part of the first column 8, which is positioned at the flow guide inclined plane 6, is processed in a needle shape; the lower section of the first column 8 and the second opening 13 enclose a second spinning solution channel 21, and the first spinning solution channel 2 is communicated with the second spinning solution channel 21;

the upper end of the base body 1 is provided with a sealing ring groove 7 corresponding to the first column 8 in a circumferential direction.

The limiting cavity 4 is of a cylindrical structure.

The angle between the diversion inclined plane 6 and the outer wall of the middle section of the first column 8 is 60 degrees.

The left end and the right end of the matrix 1 are provided with a second column 5 corresponding to the first spinning solution channel 2.

The upper end of the base body 1 is provided with a connecting structure for mounting with the spinning jet plate 11.

The connecting structure is an arc-shaped thread plate 9 which is processed in bilateral symmetry, and a thread knob 10 is screwed on the arc-shaped thread plate 9.

The working principle in this embodiment is as follows: install the sealing washer of suitable size in seal ring groove 7 on base member 1, upwards the cuttage is spouted 11 bottoms at the spinning with base member 1 through arc thread plate 9, and it is fixed through screw thread knob 10 spiro union, No. one post 8 and spinning device's core liquid inlet pipe intercommunication, No. two post 5 and dope inlet pipe intercommunication, under the effect of pressure, the core liquid flows through 3 lower extremes of core liquid runner, the dope flows from No. two dope runner 21 lower extremes, the dope of outflow centers on the core liquid, make the dope form the tubulose, make things convenient for the spinning of follow-up hollow fiber membrane.

Example two

The present embodiment is different from the first embodiment in that the connection structure on the base body 1 is a threaded hole 91 uniformly processed in the circumferential direction.

The matrix 1 is arranged at the bottom of the spinning jet plate processed with the hole groove corresponding to the threaded hole 91 and is fixed by screwing with a proper bolt, and the universality is higher compared with that of an arc-shaped threaded plate 9.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. The hollow fiber membrane spinning nozzle is characterized in that: comprises a base body (1), a first column (8) and a limiting cavity (4); the first column (8) penetrates through and is fixed in the center of the base body (1), and a core liquid flow channel (3) is arranged in the center of the first column (8); the limiting cavity (4) is fixedly arranged at the bottom of the base body (1);

a first spinning solution flow channel (2) transversely penetrates through the substrate (1), a first opening (12) is formed in the center of the upper section of the substrate (1) corresponding to the first spinning solution flow channel (2), and a second opening (13) is formed in the center of the lower section of the substrate (1) corresponding to the first spinning solution flow channel (2); the middle section of the first column (8) is arranged in the first opening (12) and is fixedly connected with the matrix (1) through the first opening (12); the upper section of the first column (8) extends upwards out of the base body (1), the lower section of the first column (8) is provided with a flow guide inclined plane (6) in a taper angle mode, and the first column (8) is positioned at the lower end part of the flow guide inclined plane (6) in a needle-shaped mode; the lower section of the first column (8) and the second opening (13) enclose a second spinning solution channel (21), and the first spinning solution channel (2) is communicated with the second spinning solution channel (21);

and a sealing ring groove (7) is arranged at the upper end of the base body (1) in the annular direction corresponding to the first column (8).

2. The hollow fiber membrane spinning nozzle according to claim 1, characterized in that: the limiting cavity (4) is of a cylindrical structure.

3. The hollow fiber membrane spinning nozzle according to claim 1, characterized in that: the angle between the flow guide inclined plane (6) and the outer wall of the middle section of the first column (8) is 60 degrees.

4. The hollow fiber membrane spinning nozzle according to claim 1, characterized in that: and the left end and the right end of the matrix (1) are provided with a second column (5) corresponding to the first spinning solution flow channel (2).

5. The hollow fiber membrane spinning nozzle according to claim 1, characterized in that: the upper end of the matrix (1) is provided with a connecting structure for mounting with the spinning jet plate (11).

6. The hollow fiber membrane spinning nozzle according to claim 5, characterized in that: the connecting structure is an arc-shaped thread plate (9) which is arranged in bilateral symmetry, and a thread knob (10) is screwed on the arc-shaped thread plate (9).

7. The hollow fiber membrane spinning nozzle according to claim 5, characterized in that: the connecting structure is a threaded hole (91) which is uniformly arranged in the circumferential direction.

Images