Glass fiber reinforced membrane shell structure

Abstract

The utility model discloses a glass fiber reinforced membrane shell structure which comprises an end cover and a membrane shell, a circle of annular boss is arranged below the membrane shell, and a circle of external thread structure is arranged on the annular boss and matched with threads of the end cover. A plurality of first reinforcing ribs which are axially arranged along the outer wall of the membrane shell are arranged above the annular boss; the membrane shell and the first reinforcing ribs are formed by glass fiber reinforced plastics in an integrated injection molding mode. According to the utility model, the membrane shell and the end covers are formed by injection molding of the glass fiber reinforced plastics, and the glass fiber reinforced plastics have the characteristics of low density, high strength, high corrosion resistance and the like, so that the strength of the membrane shell and the end covers can be effectively improved; meanwhile, the external thread of the membrane shell is machined on the annular boss, the strength of the external thread part can be improved, the strength of the membrane shell can be further improved through the first reinforcing ribs on the outer side of the membrane shell, and the service life of the membrane shell is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of membrane shell, especially to a glass fiber reinforced membrane shell structure. BACKGROUND

[0002] The reverse osmosis membrane is a kind of artificial semi-permeable membrane with certain characteristics, which is made of biological semi-permeable membrane, and is the core component of reverse osmosis technology.The principle of reverse osmosis technology is to separate water and other substances according to the fact that other substances cannot permeate the semi-permeable membrane under the action of higher solution osmotic pressure.The membrane aperture of the reverse osmosis membrane is very small, so it can effectively remove dissolved salts, colloids, microorganisms and organic matter in water.

[0003] The reverse osmosis membrane assembly generally includes a reverse osmosis membrane, a membrane shell and an end cover, and the end cover is fixed with the membrane shell by screw connection.At present, the strength of the membrane shell is poor, and the service life is short after long-time use and wear. UTILITY MODEL CONTENT

[0004] In order to solve the above problems, the utility model provides a glass fiber reinforced membrane shell structure, which can increase the strength of the membrane shell and prolong the service life of the membrane shell.

[0005] Therefore, the technical scheme of the utility model is as follows: a glass fiber reinforced membrane shell structure, comprising an end cover and a membrane shell, a ring-shaped boss is arranged below the membrane shell, an outer thread structure is arranged on the ring-shaped boss, and the outer thread structure is threadedly connected with the end cover; a plurality of first reinforcing ribs are arranged on the ring-shaped boss in the axial direction of the outer wall of the membrane shell; and the membrane shell and the first reinforcing ribs are integrally injection molded by glass fiber reinforced plastic.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the ring-shaped boss is provided with a smooth surface near one end of the first reinforcing rib, and the outer thread structure is transitionally connected with the first reinforcing rib through the smooth surface.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the first reinforcing rib is in trapezoidal structure, and the thickness of the first reinforcing rib gradually decreases from one side of the ring-shaped boss, that is, the thickest part of the first reinforcing rib is connected with the ring-shaped boss.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: a plurality of reinforcing rings are arranged on the outer side of the membrane shell in the circumferential direction, and the reinforcing rings pass through the first reinforcing rib.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: an inner thread structure is arranged in the end cover, and the end cover is injection molded by glass fiber reinforced plastic.

[0010] Compared with the prior art, the beneficial effects of the utility model are that: the membrane shell and the end cover are both made of glass fiber reinforced plastic by injection molding, the glass fiber reinforced plastic has the characteristics of low density, high strength, high corrosion resistance and the like, and can effectively increase the strength of the membrane shell and the end cover; meanwhile, the external thread of the membrane shell is processed on the annular boss, the strength of the external thread part can be increased, the first reinforcing rib on the outer side of the membrane shell can further increase the strength of the membrane shell, and the service life of the membrane shell is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structure schematic view of the utility model;

[0012] Figure 2 It is a split structure schematic view of the utility model;

[0013] Figure 3 It is a structure sectional view of the utility model;

[0014] Figure 4 It is a structure schematic view of the reinforcing ring of the utility model.

[0015] In the drawing, it is marked as: end cover 1, internal thread 11, membrane shell 2, annular boss 21, external thread structure 22, smooth surface 23, first reinforcing rib 24, reinforcing ring 25. DETAILED DESCRIPTION

[0016] In the description of the utility model, it needs to be explained that for the orientation words, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawing, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0017] In addition, if the terms "first", "second" are used for the purpose of description only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first", "second" features defined can explicitly or implicitly include one or more features, and the meaning of "several", "several" in the description of the utility model is two or two or more, unless otherwise explicitly specified.

[0018] Referring to the drawings. The glass fiber reinforced membrane shell structure described in the embodiment includes an end cover 1 and a membrane shell 2, a ring-shaped boss 21 is arranged below the membrane shell 2, an outer thread structure 22 is arranged on the ring-shaped boss 21, and the outer thread structure 22 is fixedly connected with the inner thread 11 of the end cover 1. The ring-shaped boss 21 is provided with a smooth surface 23 near one end of a first reinforcing rib 24. When the ring-shaped boss 21 is processed with threads, the strength of the membrane shell is lost. Therefore, the ring-shaped boss can increase the strength of the threaded part, and at the same time, the smooth surface 23 is the connection part between the ring-shaped boss and the membrane shell body without threads, so there is no thickness loss, and the membrane shell is not easy to break at the threaded part.

[0019] A plurality of first reinforcing ribs 24 are arranged on the ring-shaped boss 21 in the axial direction of the outer wall of the membrane shell 2, and the outer thread structure 22 of the membrane shell 2 is transitionally connected with the first reinforcing rib 24 through the smooth surface 23. The first reinforcing rib 24 is in a trapezoidal structure, and the thickness of the first reinforcing rib gradually decreases from one side of the ring-shaped boss 21, that is, the thickest part of the first reinforcing rib is connected with the ring-shaped boss. At the same time, some circumferential reinforcing rings 25 can also be arranged on the outer side of the membrane shell 2, and the reinforcing rings 25 pass through all the first reinforcing ribs 24. The first reinforcing rib 24 and the reinforcing ring 25 on the outer side of the membrane shell 2 can further increase the strength of the membrane shell 2 and prolong the service life of the membrane shell 2.

[0020] The membrane shell 2, the first reinforcing rib 24 and the reinforcing ring 25 are integrally injection molded by glass fiber reinforced plastic, and the end cover 1 is also injection molded by glass fiber reinforced plastic. Glass fiber reinforced plastic (FRP) is a composite plastic with glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin as matrix material. Glass fiber reinforced plastic has the characteristics of light weight, high specific strength, corrosion resistance, good electrical insulation performance and the like, can effectively increase the strength of the membrane shell and the end cover, and prolong the service life of the membrane shell and the end cover.

[0021] The above only describes preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled persons in the technical field, some improvements and decorations without departing from the principles of the present application are also considered as the protection scope of the present application.

Claims

1. A glass fiber-reinforced membrane shell structure comprising an end cap and a membrane shell, characterized in that: The membrane shell is provided with a ring-shaped boss below, the ring-shaped boss is provided with a circle of outer thread structure, and the outer thread structure is matched with the thread of the end cover; the ring-shaped boss is provided with a plurality of first reinforcing ribs which are arranged axially along the outer wall of the membrane shell above; the membrane shell and the first reinforcing ribs are integrally injection molded by glass fiber reinforced plastic.

2. A glass fiber reinforced membrane shell structure as in claim 1, characterized in that: The ring-shaped boss is provided with a smooth surface near one end of the first reinforcing rib, and the outer thread structure is transitionally connected with the first reinforcing rib through the smooth surface.

3. A glass fiber reinforced membrane shell structure as in claim 1, wherein: The first reinforcing rib is in trapezoidal structure, and the thickness of the first reinforcing rib gradually decreases from one side of the ring-shaped boss, that is, the first reinforcing rib is connected with the ring-shaped boss at the thickest position.

4. A glass fiber reinforced membrane shell structure as in claim 1, wherein: The membrane shell is provided with a plurality of circumferential reinforcing rings outside, and the reinforcing rings pass through the first reinforcing rib.

5. A glass fiber reinforced membrane shell structure as in claim 1, wherein: The end cover is provided with an inner thread structure inside, and the end cover is injection molded by glass fiber reinforced plastic.

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