Hollow fiber membrane module

Abstract

The utility model provides a hollow fiber membrane component, which relates to the fiber membrane component field, and comprises a cylinder body, both sides of the cylinder body are provided with end socket bodies, the cylinder body and the end socket bodies are bonded through an adhesive, one side of the end socket body far away from the cylinder body is provided with an end cover body, and the end cover body is provided with a hollow fiber membrane. Threads are arranged on the surfaces of an inner cavity of the end cover body and the end socket body, one side of the end socket body extends to the inner cavity of the end cover body, and an annular trapezoidal groove is formed in the inner cavity, close to one side of the end cover body, of the end socket body; the barrel body, the end socket body and the end cover body are arranged to form an equipment main body, the section of the annular trapezoidal groove is trapezoidal, and the opening is narrower than the bottom, so that when a hollow fiber membrane is packaged by using an adhesive, the solidified adhesive is not easy to fall off from the interior of the trapezoidal groove, and the sealing effect is good. Therefore, the packaging stability of the hollow fiber membrane is improved, and the condition of membrane piece leakage is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of membrane separation, in particular to a hollow fiber membrane component. Background Art

[0002] Membrane separation technology is a high-tech technology widely used in liquid or gas separation, concentration, and purification. It uses membranes as media and membrane modules as units to achieve the separation process. Hollow fiber membrane modules are commonly used membrane module types. They are devices composed of hollow fiber membranes installed in a shell. The outer shell of the membrane module is composed of a cylinder, a head, an end cover and a sealing structure. The cylinder and the head are bonded together by sealant. Multiple hollow fiber membranes are installed in the outer shell of the membrane module. The two ends of the hollow fiber membranes are bonded and sealed to the inner wall of the head with adhesive. The end cover and the head are sealed through a sealing structure to form a membrane module.

[0003] The adhesive between the head of the membrane assembly shell and the hollow fiber membrane is often epoxy resin, polyurethane, etc. The thermal expansion coefficients of the head and the adhesive material are different. When there is a large difference between the feed temperature and the ambient temperature during the use of the membrane assembly, if there is frequent startup and shutdown, due to the effect of thermal expansion and contraction, cracks are likely to appear at the bonding position, causing the adhesive to detach from the head, thereby causing the membrane assembly to leak and affect the membrane separation effect. Under the condition that the adhesive and the membrane assembly head material are fixed, increasing the roughness of the inner wall of the head is a common technical means to solve the above problems. On the other hand, it is necessary to protect the hollow fiber membrane from being affected by the roughness of the inner wall of the head when it is filled into the membrane assembly shell. In the prior art, a number of radial or axial grooves are set on the inner wall of the head of the membrane assembly shell. The axial groove still has the situation that the adhesive is in direct contact with the smooth inner wall of the head, and the problem of the adhesive detaching from the head cannot be effectively solved. The cross-section of the radial groove is U-shaped or V-shaped. When the shrinkage rate of the adhesive is significantly less than that of the head material during thermal expansion and contraction, the adhesive is still easy to detach from the groove, and there is a situation that the adhesive detaches from the membrane shell and the membrane assembly leaks.

[0004] In summary, the present invention provides a hollow fiber membrane component to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A hollow fiber membrane assembly comprises a cylinder body, with a head body being arranged on both sides of the cylinder body, the cylinder body and the head body being bonded to each other by an adhesive, a clamp being arranged on the surface of the head body and a gasket being arranged in the inner cavity, an end cover body being arranged on the side of the head body away from the cylinder body, threads being arranged on the surface of the head body and the inner cavity of the end cover body, one side of the head body extending to the inner cavity of the end cover body and being threadedly connected to the inner cavity of the end cover body, a plurality of annular trapezoidal grooves being radially opened in the inner cavity of the head body close to the end cover body, the inner cavity of the cylinder body being equipped with a plurality of hollow fiber membranes, and the hollow fiber membranes being sealed and fixed to the inner wall of the head body by an adhesive.

[0007] Furthermore, in the present invention, the cross-sectional structure of the plurality of annular trapezoidal grooves is a trapezoid, and the width of the bottom of the inner cavity of the trapezoidal groove is longer than the width of the opening of the trapezoidal groove.

[0008] Furthermore, in the present invention, a plurality of the annular trapezoidal grooves are spaced apart from each other, and two adjacent annular trapezoidal grooves do not intersect with each other.

[0009] Furthermore, in the utility model, the opening width of the annular trapezoidal groove is smaller than the wall thickness of the head body, and the bottom width of the annular trapezoidal groove is smaller than the wall thickness of the head body, and the depth of the annular trapezoidal groove is smaller than the wall thickness of the head body.

[0010] Furthermore, in the utility model, the inner cavity of the head body is provided with a sealing structure, and the sealing structure includes a connecting portion of the head body, a connecting portion of the end cover body and a sealing fastener fixed to the surface of the head body.

[0011] The utility model has the following beneficial effects:

[0012] The utility model is used to form the main body of the equipment by arranging a cylinder body, a head body and an end cover body. Since the cross-section of the radial annular trapezoidal groove is trapezoidal and the opening is narrower than the bottom, when the adhesive is used to encapsulate the hollow fiber membrane, the solidified adhesive is not easy to fall off from the inside of the trapezoidal groove, thereby improving the stability of the hollow fiber membrane encapsulation and preventing the membrane from leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the head body and the end cover body of the utility model in a separated state;

[0015] Figure 3 It is a schematic diagram of the main structure of the end cover body of the utility model;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the head body of the utility model when viewed from above;

[0017] Figure 5 This is a schematic diagram of the head after encapsulating the hollow fiber membrane of the utility model;

[0018] Figure 6 This is a schematic diagram of the head section after encapsulating the hollow fiber membrane of the utility model when viewed from above

[0019] In the figure:

[0020] 1. Cylinder body; 2. Head body; 3. End cover body; 4. Annular trapezoidal groove. DETAILED DESCRIPTION

[0021] In order to better understand the technical content of the utility model, specific embodiments are cited and described as follows in conjunction with the accompanying drawings. In this disclosure, various aspects of the utility model are described with reference to the accompanying drawings, and many illustrative embodiments are shown in the accompanying drawings. The embodiments of the present disclosure are not necessarily defined to include all aspects of the utility model. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the utility model are not limited to any implementation method. In addition, some aspects disclosed in the utility model can be used alone, or used in any appropriate combination with other aspects disclosed in the utility model.

[0022] Example 1

[0023] like Figure 1-4 As shown, it is the first embodiment of the utility model, which provides a hollow fiber membrane assembly, including a cylinder body 1, a head body 2 is arranged on both sides of the cylinder body 1, the cylinder body 1 and the head body 2 are bonded by an adhesive, and an end cover body 3 is arranged on the side of the head body 2 away from the cylinder body 1, and the surface of the head body 2 and the inner cavity of the end cover body 3 are both provided with threads, one side of the head body 2 extends to the inner cavity of the end cover body 3 and is threadedly connected with the inner cavity of the end cover body 3, the head body 2 can also be sealed by means of clamps and gaskets, and a plurality of annular trapezoidal grooves 4 are opened in the inner cavity of the head body 2 close to the end cover body 3, the inner cavity of the cylinder body 1 is equipped with a plurality of hollow fiber membranes, and the hollow fiber membranes are sealed and fixed to the inner wall of the head body 2 by epoxy resin adhesive.

[0024] like Figure 1As shown, the cylinder body 1, the head body 2 and the end cover body 3 are used to constitute the main body of the equipment. Since the cross-section of the annular trapezoidal groove 4 is trapezoidal and the opening is narrower than the bottom, when the adhesive is used to encapsulate the hollow fiber membrane, the solidified adhesive is not easy to fall off from the inside of the annular trapezoidal groove 4, thereby improving the stability of the hollow fiber membrane encapsulation and preventing membrane leakage.

[0025] Example 2

[0026] Reference Figure 4 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0027] In this embodiment, the cross-sectional structure of the annular trapezoidal groove 4 is a trapezoid, and the width of the bottom of the inner cavity of the annular trapezoidal groove 4 is longer than the width of the opening of the trapezoidal groove 4 .

[0028] A plurality of annular trapezoidal grooves 4 are spaced apart from each other, and two adjacent annular trapezoidal grooves 4 do not intersect each other.

[0029] The opening width of the annular trapezoidal groove 4 is smaller than the wall thickness of the head body 2 , the bottom width of the annular trapezoidal groove 4 is smaller than the wall thickness of the head body 2 , and the depth of the annular trapezoidal groove 4 is smaller than the wall thickness of the head body 2 .

[0030] like Figure 4 As shown, since the cross-section of the annular trapezoidal groove 4 is trapezoidal and the opening is narrower than the bottom, when the adhesive is used to encapsulate the hollow fiber membrane, the solidified adhesive is not easy to fall off from the inside of the annular trapezoidal groove 4, thereby improving the stability of the hollow fiber membrane encapsulation and preventing membrane leakage.

[0031] Example 3

[0032] Reference Figure 4 , which is the third embodiment of the utility model, and this embodiment is based on the previous two embodiments.

[0033] In this embodiment, the inner cavity of the head body 2 is provided with a sealing structure, and the sealing structure includes a connecting portion of the head body 2, a connecting portion of the end cover body 3, and a sealing fastener fixed to the surface of the head body 2.

[0034] like Figure 4 As shown, since the cross-section of the annular trapezoidal groove 4 is trapezoidal and the opening is narrower than the bottom, when the adhesive is used to encapsulate the hollow fiber membrane, the solidified adhesive is not easy to fall off from the inside of the annular trapezoidal groove 4, thereby improving the stability of the hollow fiber membrane encapsulation and preventing membrane leakage.

[0035] When in use, the inner cavity of the head body 2 is provided with a sealing structure, which includes a connecting part of the head body 2, a connecting part of the end cover body 3 and a sealing fastener. The sealing methods include one or more of internal and external threads, sealing gaskets, clamps, etc. Since the cross-section of the annular trapezoidal groove 4 is trapezoidal and the opening is narrower than the bottom, when the adhesive is used to encapsulate the hollow fiber membrane, the solidified adhesive is not easy to fall off from the inside of the annular trapezoidal groove 4, thereby improving the stability of the hollow fiber membrane encapsulation and preventing membrane leakage.

[0036] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0037] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A hollow fiber membrane module, comprising a cylinder body (1), characterized in that: A head body (2) is provided on both sides of the cylinder body (1), and the cylinder body (1) and the head body (2) are bonded by an adhesive. An end cover body (3) is provided on the side of the head body (2) away from the cylinder body (1). The surface of the head body (2) and the inner cavity of the end cover body (3) are both provided with threads. One side of the head body (2) extends to the inner cavity of the end cover body (3) and is threadedly connected with the inner cavity of the end cover body (3). An annular trapezoidal groove (4) is provided in the inner cavity of the head body (2) close to the end cover body (3). The inner cavity of the cylinder body (1) is equipped with a plurality of hollow fiber membranes, and the hollow fiber membranes are sealed and fixed to the inner wall of the head body (2) by an adhesive.

2. The hollow fiber membrane assembly according to claim 1, characterized in that: The cross-sectional structure of the annular trapezoidal groove (4) is a trapezoid, and the width of the bottom of the inner cavity of the annular trapezoidal groove (4) is longer than the width of the opening of the annular trapezoidal groove (4).

3. The hollow fiber membrane assembly according to claim 1, characterized in that: A plurality of the annular trapezoidal grooves (4) are spaced apart from each other, and two adjacent annular trapezoidal grooves (4) do not intersect each other.

4. The hollow fiber membrane assembly according to claim 1, characterized in that: The opening width of the annular trapezoidal groove (4) is smaller than the wall thickness of the head body (2), the bottom width of the annular trapezoidal groove (4) is smaller than the wall thickness of the head body (2), and the depth of the annular trapezoidal groove (4) is smaller than the wall thickness of the head body (2).

5. The hollow fiber membrane assembly according to claim 1, characterized in that: The inner cavity of the sealing head body (2) is provided with a sealing structure, which comprises a connecting portion of the sealing head body (2), a connecting portion of the end cover body (3), and a sealing fastener fixed to the surface of the sealing head body (2).

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