RO (reverse osmosis) membrane assembly for industrial water treatment

Abstract

The utility model discloses an RO (Reverse Osmosis) membrane assembly for industrial water treatment, and aims to provide the RO membrane assembly for industrial water treatment, which is capable of improving the connecting efficiency, the strength and the sealing performance. The device comprises a central pipe, water seepage holes are formed in the central pipe, and the central pipe is sleeved with a membrane; the connecting pipe head is connected with the end head of the central pipe; the end cover is provided with a mounting hole, the connecting pipe head is provided with an external thread, the mounting hole is provided with an internal thread, and the connecting pipe head is in threaded connection with the end cover; the connecting pipe head is coated with the rubber ring sleeve layer at the position of the external thread, and the connecting pipe head is connected with the end cover at the position of the internal thread of the mounting hole in a bonding mode through the rubber ring sleeve layer. The RO reverse osmosis membrane has the beneficial effects that the assembly connection strength between structures of the RO reverse osmosis membrane is improved; the connection strength between the structures is enhanced, and the assembly sealing performance is enhanced; the connecting efficiency is improved; the service life of the RO membrane is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to RO reverse osmosis membrane component technical field especially points to a kind of RO reverse osmosis membrane component for industrial water treatment. BACKGROUND

[0002] Industrial water treatment generally adopts RO reverse osmosis membrane, and the RO reverse osmosis membrane component includes a center tube, an end cap and a membrane for filtration, and the center tube and the end cap are assembled as a support structure for supporting and connecting the membrane.

[0003] Chinese patent authorized announcement number: CN 210332296 U, authorized announcement date is April 17, 2020, and the utility model proposes a high-flux reverse osmosis membrane component and reverse osmosis filter core structure, the high-flux reverse osmosis membrane component includes a center tube and a reverse osmosis membrane body wound on the center tube, the upper portion of the center tube has a raw water channel, the lower portion of the center tube has a purified water channel, the raw water channel and the purified water channel are independent of each other by the barrier plate arranged in the center tube, the connecting end cap is sleeved on the center tube, the connecting end cap is fixed on the upper end of the reverse osmosis membrane body by sealing fixing device, and the outer side wall of the connecting end cap is provided with circumferentially distributed mounting grooves, and the O-shaped ring is fixed in the mounting groove.The technical scheme has the disadvantages that: the mounting mode of the center tube and the end cap is complex, the efficiency is low, and the sealing property is weak, which shortens the service life of the RO reverse osmosis membrane component.

[0004] In summary, the existing RO reverse osmosis membrane component has the disadvantages of complex mounting mode of the center tube and the end cap, weak sealing, and shortened service life of the RO reverse osmosis membrane component. UTILITY MODEL CONTENTS

[0005] The utility model is to overcome the deficiencies of low connection efficiency, poor strength and sealing property of the existing RO reverse osmosis membrane component in the prior art, and provides an RO reverse osmosis membrane component for industrial water treatment, which improves the connection efficiency, strength and sealing property.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] An RO reverse osmosis membrane component for industrial water treatment includes

[0008] A center tube, the center tube is provided with a water permeation hole, and the center tube is sleeved with a membrane;

[0009] A connecting pipe head, the connecting pipe head is connected with the end head of the center tube;

[0010] An end cap, the end cap is provided with a mounting hole, the connecting pipe head is provided with an external thread, the mounting hole is provided with an internal thread, and the connecting pipe head is threadedly connected with the end cap;

[0011] The connecting pipe head is coated with a rubber sleeve layer at the outer thread, and the connecting pipe head is bonded and connected with the end cover at the inner thread of the mounting hole through the rubber sleeve layer.

[0012] The center pipe is used for winding the film (not shown in the figure) through the water seepage hole to filter the industrial water, wherein the two ends of the center pipe are connected with the connecting pipe head with external threads, the mounting hole of the end cover is provided with internal threads, and the outer surface of the connecting pipe head is provided with external threads, so that when the center pipe is assembled, the connecting pipe head and the end cover are screwed and installed through threaded connection to complete the RO reverse osmosis membrane support, and a rubber sleeve layer structure is annularly coated on the surface of the internal thread and the surface of the external thread, and then after the connecting pipe head and the end cover are screwed, the rubber sleeve layer is dried and solidified to realize the double sealing connection and fixation of the center pipe and the end cover. Compared with the traditional direct glue fixing, the strength of the connection between the structures is improved, the connection mode is simple and efficient, and the connection strength is prevented from being reduced after long-term use, so that the center pipe and the end cover are loosened and the reverse osmosis membrane is damaged. The effect of improving the assembly connection strength between the structures of the RO reverse osmosis membrane, enhancing the assembly sealing property, improving the connection efficiency and prolonging the service life of the RO reverse osmosis membrane is achieved.

[0013] As preferred, the length of the connecting pipe head is less than the length of the end cover, and the diameter of the center pipe is greater than the diameter of the connecting pipe head. The length of the connecting pipe head is shorter than that of the end cover, and the outer diameter of the center pipe is greater than that of the connecting pipe head, so that the screwing position of the connecting pipe head is limited, and the screwing efficiency and the assembly accuracy of the structure are improved. The effect of improving the assembly efficiency and accuracy of the RO reverse osmosis membrane structure is achieved.

[0014] As preferred, the surface of the mounting hole connected with the connecting pipe head is provided with an internal thread surface, the internal thread is arranged on the thread surface, and the length of the thread surface is equal to the length of the connecting pipe head. The internal thread surface is arranged on the hole wall of the mounting hole and is arranged to be equal to the length of the connecting pipe head and the external thread on the connecting pipe head, so that the butt joint position of the connecting pipe head and the end cover during assembly is more accurate, and the freedom degree of the movement position of the connecting pipe head on the end cover is limited. The effects of further improving the assembly accuracy and efficiency are achieved.

[0015] As preferred, the wall surface of the one end port of the mounting hole is provided with a limiting surface, the cross-sectional shape of the limiting surface is L-shaped, the surface of the limiting surface is vertically connected with the surface of the internal thread surface, and the limiting surface is attached to the surface and end surface of the center pipe. The wall surface of the one end port of the mounting hole close to the center pipe is provided with a limiting surface, the cross-sectional shape of the limiting surface is L-shaped and connected with the internal thread surface, so as to adapt to the assembly of the connecting pipe head with an outer diameter greater than the hole diameter of the mounting hole. The connecting pipe head is directly limited and positioned by the L-shaped limiting surface during assembly, and the zigzag structure realizes the labyrinth sealing effect, and the connecting position of the connecting pipe head is limited again. The effects of automatic positioning during assembly, improving the assembly accuracy and the sealing property are achieved.

[0016] As preferred, the limiting surface is provided with a limiting groove, and the end surface of the center pipe is connected with a limiting convex ring, and the limiting groove is embedded with the limiting convex ring. The annular limiting groove is arranged on the surface of the limiting surface which is connected with the internal thread surface, so that the center pipe is embedded into the limiting groove through the limiting convex ring when the pipe head is assembled, and then the secondary labyrinth seal is formed. The connection sealing property between the structures is further enhanced.

[0017] As preferred, the limiting surface and the limiting groove are coated with a rubber ring layer one, and the end surface and the side surface of the center pipe are bonded and connected with the limiting surface and the limiting groove through the rubber ring layer one. The rubber ring layer one coated with glue is arranged on the limiting surface and the limiting groove, so that the center pipe is bonded with the end cover through the rubber ring layer one after installation. The structural connection strength and the sealing property of the end cover and the pipe head (the center pipe) are improved.

[0018] As preferred, the wall surface of the other end port of the mounting hole is provided with a connecting surface, the surface of the connecting surface is vertically connected with the surface of the internal thread surface, the connecting surface is connected with a limiting ring, and the thickness of the limiting ring is equal to the thickness of the pipe head. The inner wall surface of the other end port (away from the end of the center pipe) of the mounting hole is provided with a connecting surface, the connecting surface is connected with the limiting ring, and the end surface of the pipe head is tightly attached to the limiting ring after the pipe head is threadedly connected, so that the pipe head is limited again and the labyrinth seal of the L structure is formed. The connection precision and the sealing property between the structures are improved.

[0019] As preferred, the end surface of the pipe head is coated with a rubber ring layer two, and the end surface of the pipe head is bonded and connected with the limiting ring through the rubber ring layer two. The end surface of the pipe head is tightly bonded and connected with the limiting ring through the rubber ring layer two during connection. The structural connection strength and the sealing property of the end cover and the pipe head (the center pipe) are further improved.

[0020] The beneficial effects of the utility model are: the assembly connection strength between the structures of the RO reverse osmosis membrane is improved; the connection strength between the structures is enhanced, and the assembly sealing property is enhanced; the connection efficiency is improved, and the service life of the RO reverse osmosis membrane is prolonged. DRAWINGS

[0021] Figure 1 It is the perspective view of the utility model;

[0022] Figure 2 It is the side view of Figure 1 ;

[0023] Figure 3 It is the structural schematic view of the end cover and the pipe head (unconnected state);

[0024] Figure 4 It is the sectional view of the end cover and the pipe head (connected state);

[0025] Figure 5 It isFigure 4 Enlarged view at center A;

[0026] Figure: 1. Center tube, 2. Water seepage hole, 3. Connection pipe head, 4. End cover, 5. Mounting hole, 6. External thread, 7. Internal thread, 8. Rubber ring cover layer, 9. Internal thread surface, 10. Limit surface, 11. Limit groove, 12. Limit convex ring, 13. Rubber ring ring layer one, 14. Connection surface, 15. Limit ring, 16. Rubber ring ring layer two. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative work, fall within the scope of protection of the present application.

[0028] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “below” other elements or features would be positioned “up” other elements or features. Thus, the exemplary term “down” can include both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0030] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0031] Example 1:

[0032] like Figures 1-5 As shown, an RO reverse osmosis membrane module for industrial water treatment includes a central tube 1 with seepage holes 2 and a membrane sheet fitted onto it; a connecting tube head 3 connected to the end of the central tube 1; an end cap 4 with mounting holes 5, the connecting tube head 3 having external threads 6 and the mounting holes 5 having internal threads 7, the connecting tube head 3 being threadedly connected to the end cap 4; and a rubber ring sleeve 8 coated on the external threads 6 of the connecting tube head 3, the connecting tube head 3 being bonded to the end cap 4 at the internal threads 7 of the mounting holes 5 via the rubber ring sleeve 8.

[0033] like Figure 4 As shown, the length of the connecting pipe head 3 is less than the length of the end cap 4, and the diameter of the central pipe 1 is greater than the diameter of the connecting pipe head 3.

[0034] like Figure 4 ,5 As shown, the surface where the mounting hole 5 connects to the connecting pipe head 3 is designated as the internal thread surface 9, with the internal thread 7 placed on the thread surface. The length of the thread surface 7 is equal to the length of the connecting pipe head 3. The wall surface at one end of the mounting hole 5 is designated as the limiting surface 10, with an L-shaped cross-section. The surface of the limiting surface 10 is perpendicularly connected to the surface of the internal thread surface 9, and the limiting surface 10 is in contact with the surface and end face of the central pipe 1.

[0035] like Figure 4 As shown, the limiting surface 10 is provided with a limiting groove 11, and the end face of the central tube 1 is connected to a limiting protrusion 12, with the limiting groove 11 and the limiting protrusion 12 being engaged. Both the limiting surface 10 and the limiting groove 11 are coated with a rubber ring layer 13, and the end face and side face of the central tube 1 are bonded to the limiting surface 10 and the limiting groove 11 through the rubber ring layer 13.

[0036] like Figure 3 , 4 As shown, the wall surface at the other end of the mounting hole 5 is designated as a connecting surface 14. The surface of the connecting surface 14 is perpendicularly connected to the surface of the internal thread surface 9. A limiting ring 15 is connected to the connecting surface 14, and the thickness of the limiting ring 15 is equal to the thickness of the connecting pipe head 3. The end face of the connecting pipe head 3 is coated with a second rubber ring layer 16, and the end face of the connecting pipe head 3 is bonded to the limiting ring 15 through the second rubber ring layer 3.

[0037] like Figures 1-5 As shown: End caps 4 are installed at both ends of the central tube 1, and several water seepage holes 2 are provided on the surface of the central tube 1 and are evenly arranged.

[0038] The connecting pipe head 3 and the central pipe 1 are integrally formed to ensure the integrity and strength of the structure.

[0039] When installing the components: apply glue to the limiting surface 10, limiting groove 11, end face of connecting tube head 3, and the surface with external thread 6 of the mounting hole 5 beforehand. After application, quickly assemble: insert the connecting tube head 3 into the mounting hole 5 and screw on the end cap 4 so that the external thread 6 of the connecting tube head 3 is threadedly engaged with the internal thread surface 9 of the internal thread 7 of the mounting hole 5. Rotate until it can no longer be rotated. At this time, the end face of the connecting tube head 3 is tightly attached to the limiting ring 15, the internal thread 7 and the external thread 6 are fully screwed together, the limiting protrusion ring 12 is embedded in the limiting groove 11, and the end face of the center tube 1 is tightly attached to the limiting surface 10 until the glue dries completely, forming an integral glue layer consisting of rubber ring layer 13, rubber ring sleeve layer 8 and rubber ring layer 2 16, and the center tube 1 and end cap 4 fix the diaphragm support structure.

[0040] The above examples are only used to illustrate the technical solutions of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. An RO membrane module for industrial water treatment, characterized by, The utility model relates to a water permeable pipe, which comprises a center pipe (1) provided with water permeable holes (2) and sleeved with a diaphragm, a connecting pipe head (3) connected with the end of the center pipe (1), an end cover (4) provided with a mounting hole (5), the connecting pipe head (3) being provided with an external thread (6), the mounting hole (5) being provided with an internal thread (7), and the connecting pipe head (3) being threadedly connected with the end cover (4), a rubber ring sleeve layer (8) coated on the external thread (6) of the connecting pipe head (3), and the connecting pipe head (3) being adhesively connected with the end cover (4) at the internal thread (7) of the mounting hole (5) through the rubber ring sleeve layer (8). The length of the connecting pipe head (3) is less than the length of the end cover (4), and the diameter of the center pipe (1) is greater than the diameter of the connecting pipe head (3). The surface of the mounting hole (5) connected with the connecting pipe head (3) is provided with an internal thread surface (9), the internal thread (7) is arranged on the internal thread surface (9), and the length of the internal thread surface (9) is equal to the length of the connecting pipe head (3). The wall surface of one end of the mounting hole (5) is provided with a limiting surface (10), the cross section of the limiting surface (10) is L-shaped, the surface of the limiting surface (10) is vertically connected with the surface of the internal thread surface (9), and the limiting surface (10) is attached to the surface and the end surface of the center pipe (1). The limiting surface (10) is provided with a limiting groove (11), the end surface of the center pipe (1) is connected with a limiting convex ring (12), and the limiting groove (11) is embedded with the limiting convex ring (12).

2. The RO membrane module for industrial water treatment according to claim 1, wherein The limiting surface (10) and the limiting groove (11) are coated with a first rubber ring layer (13), and the end surface and the side surface of the center pipe (1) are adhesively connected with the limiting surface (10) and the limiting groove (11) through the first rubber ring layer (13).

3. The RO membrane module for industrial water treatment according to claim 1, characterized in that, The wall surface of the other end of the mounting hole (5) is provided with a connecting surface (14), the surface of the connecting surface (14) is vertically connected with the surface of the internal thread surface (9), the connecting surface (14) is connected with a limiting ring (15), and the thickness of the limiting ring (15) is equal to the thickness of the connecting pipe head (3).

4. The RO membrane module for industrial water treatment according to claim 3, wherein The end surface of the connecting pipe head (3) is coated with a second rubber ring layer (16), and the end surface of the connecting pipe head (3) is adhesively connected with the limiting ring (15) through the second rubber ring layer (16).

5. The RO membrane module for industrial water treatment according to claim 4, wherein ​ 6. The RO membrane module for industrial water treatment according to claim 5, wherein ​ 7. The RO membrane module for industrial water treatment according to claim 3, wherein ​ 8. The RO membrane module for industrial water treatment according to claim 7, wherein ​

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