A connector for an acid-resistant nanofiltration membrane

Abstract

The utility model provides a connector for an acid-resistant nanofiltration membrane, comprising a shell, both ends of the shell are detachably connected with a shell cover through a snap-on assembly, a central tube is centrally arranged inside the shell, end covers are arranged at both ends of the central tube, a filter membrane group is arranged between the end covers on the central tube, a collecting hole is arranged on the central tube, an external connector is arranged at one end of the shell cover away from the central tube, and an internal connector is arranged at one end of the shell cover close to the central tube; the internal connector, the external connector and the central tube are coaxially arranged, the internal connector close to one end of the central tube is provided with an annular groove, and the end of the central tube close to the internal connector is inserted into the groove; the utility model sets a plurality of sealing components, so that the production efficiency and production quality of product water can be effectively guaranteed when the utility model is used.

Description

Technical Field

[0001] The utility model relates to a connector for an acid-resistant nanofiltration membrane, belonging to the technical field of filtration membrane equipment. Background Art

[0002] Acid-resistant nanofiltration membrane is a nanofiltration membrane with acid resistance. Nanofiltration membrane is a thin film that screens substances in a solution by molecular size and characteristics, and is usually used to separate and purify solutes in liquids. Acid-resistant nanofiltration membranes are usually used for filtration and separation in acidic environments. Their materials and structural design enable them to maintain stability and performance under acidic conditions. Acid-resistant nanofiltration membrane equipment is generally rolled on a central tube, with end caps set at both ends of the central tube, and then the central tube, end caps, central tube and acid-resistant nanofiltration membrane are set together in a shell, and finally shell covers are installed at both ends of the shell to form an assembly for use, and its connector refers to a shell cover with a joint.

[0003] In the prior art, when the connector is in use, its docking with the central tube is generally: the connector is inserted into the central tube and the connector is inserted outside the central tube. In these two docking methods, there is a leakage problem in the gap between the central tube and the connector, which will affect the quality and efficiency of the product water produced by the equipment. Therefore, the utility model proposes a connector for an acid-resistant nanofiltration membrane. Utility Model Content

[0004] Based on the above background, the purpose of the utility model is to provide a connector for an acid-resistant nanofiltration membrane to solve the problems described in the background technology.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0006] A connector for an acid-resistant nanofiltration membrane, comprising a shell, both ends of the shell are detachably connected to a shell cover by a snap-on assembly, a central center tube is provided inside the shell, end covers are provided at both ends of the center tube, a filter membrane group is provided between the end covers on the center tube, a collecting hole is provided on the center tube, an external connector is provided at one end of the shell cover away from the center tube, an internal connector is provided at one end of the shell cover close to the center tube, the internal connector, the external connector and the center tube are coaxially arranged, an annular groove is provided at one end of the inner connector close to the center tube, the end of the center tube close to the inner connector is inserted into the groove, a first sealing assembly is provided between the inner wall of the center tube and a side wall of the annular groove close to the inner wall of the inner connector, a second sealing assembly is provided between the outer wall of the center tube and a side wall of the annular groove close to the outside of the inner connector, and a third sealing assembly is provided between the end of the center tube close to the inner connector and the bottom surface of the annular groove.

[0007] Preferably, the inner connector, the outer connector and the shell cover are integrally formed, the outer connector is connected to the outer connector, the outer connector, the inner connector and the shell cover constitute the entire connector, and a concentrated water joint is also provided on the shell cover on the left side of the shell.

[0008] Preferably, the buckle assembly includes a first annular groove arranged on the outer surface of the shell and a second annular groove arranged on the outer surface of the shell cover, a group of symmetrically arranged semicircular buckles are provided in the first annular groove and the second annular groove, a group of the buckles are detachably connected through threaded connection of bolts and nuts, and a first annular sealing gasket is provided at the abutment portion of the shell and the shell cover.

[0009] Preferably, the first sealing assembly comprises a group of first annular grooves, which are arranged on the side wall of the groove close to the inner wall of the inner connector, and each of the first annular grooves is provided with a first O-ring.

[0010] Preferably, the second sealing assembly comprises a second annular sealing gasket, and the second annular sealing gasket is arranged at the bottom of the groove.

[0011] Preferably, the third sealing assembly comprises a group of second annular grooves, wherein the group of second annular grooves is formed on the outer wall of the central tube, and second O-rings are disposed in each of the second annular grooves.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model has an acid-resistant nanofiltration membrane connector. Due to the sealing of the first O-ring in the first annular groove, when the product water flows through the center tube near the inner connector, the product water cannot flow out through the gap between the inner connector and the center tube, affecting the product water production efficiency of the utility model. Due to the second O-ring in the second annular groove, when the concentrated water flows through the center tube near the inner connector, the concentrated water cannot flow into the product water channel through the gap between the inner connector and the center tube, thereby ensuring the product water production quality of the utility model. The utility model is provided with multiple sets of sealing components, so that the production efficiency and production quality of the product water can be effectively guaranteed when the utility model is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged view of part A in the middle;

[0017] Figure 3 It is a cross-sectional view of the utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged view of part B in the middle.

[0019] In the figure: 1. shell; 2. buckle assembly; 201. first annular groove; 202. second annular groove; 203. buckle; 204. bolt; 205. nut; 206. first annular gasket; 3. first sealing assembly; 301. first ring groove; 302. first O-ring; 4. second sealing assembly; 401. second annular gasket; 5. third sealing assembly; 501. second ring groove; 502. second O-ring; 6. shell cover; 7. center tube; 8. end cover; 9. filter membrane group; 10. collecting hole; 11. external connector; 12. internal connector; 13. groove; 14. concentrated water connector. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described in detail below through specific embodiments and in combination with the accompanying drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any form of modification and / or change made to the utility model will fall within the protection scope of the utility model.

[0021] In the present invention, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the field. The methods in the following embodiments, unless otherwise specified, are conventional methods in the field. The components or equipment in the following embodiments, unless otherwise specified, are universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods.

[0022] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. In the following detailed description, for ease of explanation, many specific details are described to provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may also be implemented by those skilled in the art without these specific details.

[0023] like Figure 1-Figure 4As shown, a connector for an acid-resistant nanofiltration membrane comprises a shell 1, both ends of the shell 1 are detachably connected to a shell cover 6 through a snap assembly 2, a central tube 7 is centrally arranged inside the shell 1, end covers 8 are arranged at both ends of the central tube 7, a filter membrane group 9 is arranged between the end covers 8 on the central tube 7, a collecting hole 10 is arranged on the central tube 7, an outer connector 11 is arranged at one end of the shell cover 6 away from the central tube 7, an inner connector 12 is arranged at one end of the shell cover 6 close to the central tube 7, and the inner connector 12, the outer connector 11 and the central tube 7 are coaxially opened It is assumed that an annular groove 13 is provided at one end of the inner connector 12 near the center tube 7, and the end of the center tube 7 near the inner connector 12 is inserted into the groove 13, a first sealing component 3 is provided between the inner wall of the center tube 7 and a side wall of the annular groove 13 near the inner wall of the inner connector 12, a second sealing component 4 is provided between the outer wall of the center tube 7 and a side wall of the annular groove 13 near the outside of the inner connector 12, and a third sealing component 5 is provided between the end of the center tube 7 near the inner connector 12 and the bottom surface of the annular groove 13.

[0024] Specifically, the inner connector 12, the outer connector 11 and the shell cover 6 are integrally formed, the outer connector 11 is connected to the outer connector 11, the outer connector 11, the inner connector 12 and the shell cover 6 constitute the entire connector, and the shell cover 6 at the left side of the shell 1 is also provided with a concentrated water connector 14. The connector is used to seal the internal space of the shell 1 on the one hand, and to facilitate the connection of the device with an external water pipe on the other hand.

[0025] Specifically, the buckle assembly 2 includes a first annular snap groove 201 disposed on the outer surface of the housing 1 and a second annular snap groove 202 disposed on the outer surface of the shell cover 6. A group of symmetrically disposed semicircular snap grooves 203 are disposed in the first annular snap groove 201 and the second annular snap groove 202. A group of the snap grooves 203 are detachably connected to each other through the threaded connection of bolts 204 and nuts 205. A first annular sealing gasket 206 is disposed at the abutting portion of the housing 1 and the shell cover 6. By disposing the buckle assembly 2, the housing 1 and the shell cover 6 in the utility model can be detachably fixedly connected. Further, by providing the first annular snap groove 201 and the second annular snap groove 202 on the housing 1 and the shell cover 6, and disposing the snap groove 203 in the second annular snap groove 202 and the first annular snap groove 201, the snap groove 203 can more stably fix the shell cover 6 and the housing 1.

[0026] Specifically, the first sealing assembly 3 includes a group of first annular grooves 301, which are formed on the side wall of the groove 13 near the inner wall of the inner connector 12, and a first O-type sealing ring 302 is arranged in each of the first annular grooves 301. By arranging the first O-type sealing ring 302 in the first annular groove 301, the product water cannot flow out through the gap between the inner connector 12 and the center tube 7 to affect the product water production efficiency of the utility model.

[0027] Specifically, the second sealing assembly 4 includes a second annular sealing gasket 401, and the second annular sealing gasket 401 is arranged at the bottom of the groove 13. The second annular sealing gasket 401 is arranged to strengthen the sealing between the central tube 7 and the inner connector 12.

[0028] Specifically, the third sealing assembly 5 includes a group of second annular grooves 501, which are opened on the outer wall of the central tube 7, and a second O-type sealing ring 502 is arranged in each of the second annular grooves 501. By arranging the second O-type sealing ring 502 in the second annular groove 501, the concentrated water cannot flow into the product water channel through the gap between the inner connector 12 and the central tube 7, thereby ensuring the production quality of the product water of the utility model.

[0029] The working principle of the connector of the utility model for an acid-resistant nanofiltration membrane is:

[0030] When in use, normal water enters the shell 1 from the water inlet (not shown in the present invention) on the shell cover 6 connected by the buckle 203 at the right end of the shell 1. Under the water pressure of the external water pump, the product water filtered by the filter membrane group 9 flows into the center tube 7 from the collecting hole 10 opened on the center tube 7, flows through the inner connector 12 and the outer connector 11 in turn and flows out of the present invention. The concentrated water flows through the left end cover 8 inside the shell 1 and flows out through the concentrated water connector 14 on the shell cover 6. In the flow process of the concentrated water and the product water in the present invention, when the product water When flowing through the center tube 7 to the position near the inner connector 12, due to the sealing of the first O-ring 302 in the first annular groove 301, the product water cannot flow out through the gap between the inner connector 12 and the center tube 7, affecting the product water production efficiency of the utility model; when the concentrated water flows through the center tube 7 to the position near the inner connector 12, due to the second O-ring 502 in the second annular groove 501, the concentrated water cannot flow into the product water channel through the gap between the inner connector 12 and the center tube 7, thereby ensuring the product water production quality of the utility model.

[0031] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A connector for an acid-resistant nanofiltration membrane, characterized in that: The invention comprises a shell (1), both ends of which are detachably connected to a shell cover (6) via a snap assembly (2), a central tube (7) is provided in the center of the shell (1), end covers (8) are provided at both ends of the central tube (7), a filter membrane group (9) is provided between the end covers (8) on the central tube (7), a collecting hole (10) is provided on the central tube (7), an external connector (11) is provided at one end of the shell cover (6) away from the central tube (7), and an internal connector (12) is provided at one end of the shell cover (6) close to the central tube (7), the internal connector (12), the external connector (11) and the central tube (7) are coaxially arranged, and the The inner connector (12) is provided with an annular groove (13) at one end close to the center tube (7), and the center tube (7) is inserted into the groove (13) at one end close to the inner connector (12). A first sealing component (3) is provided between the inner wall of the center tube (7) and a side wall of the annular groove (13) close to the inner wall of the inner connector (12), a second sealing component (4) is provided between the outer wall of the center tube (7) and a side wall of the annular groove (13) close to the outside of the inner connector (12), and a third sealing component (5) is provided between the end of the center tube (7) close to the inner connector (12) and the bottom surface of the annular groove (13).

2. The connector of an acid-resistant nanofiltration membrane according to claim 1, characterized in that: The inner connector (12), the outer connector (11) and the shell cover (6) are integrally formed; the outer connector (11) is connected to the outer connector (11); the outer connector (11), the inner connector (12) and the shell cover (6) constitute the entire connector; and a concentrated water connector (14) is also provided on the shell cover (6) at the left side of the shell (1).

3. The connector of an acid-resistant nanofiltration membrane according to claim 1, characterized in that: The buckle assembly (2) comprises a first annular buckle groove (201) arranged on the outer surface of the shell (1) and a second annular buckle groove (202) arranged on the outer surface of the shell cover (6); a group of symmetrically arranged semicircular buckles (203) are arranged in the first annular buckle groove (201) and the second annular buckle groove (202); the buckles (203) are detachably connected to each other through the threaded connection of bolts (204) and nuts (205); and a first annular sealing gasket (206) is provided at the abutting portion of the shell (1) and the shell cover (6).

4. The connector of an acid-resistant nanofiltration membrane according to claim 1, characterized in that: The first sealing assembly (3) comprises a group of first annular grooves (301), wherein the group of first annular grooves (301) are formed on a side wall of the groove (13) close to an inner wall of the inner connector (12), and a first O-ring (302) is provided in each of the first annular grooves (301).

5. The connector of an acid-resistant nanofiltration membrane according to claim 1, characterized in that: The second sealing assembly (4) comprises a second annular sealing gasket (401), and the second annular sealing gasket (401) is arranged at the bottom of the groove (13).

6. The connector of an acid-resistant nanofiltration membrane according to claim 1, characterized in that: The third sealing assembly (5) comprises a group of second annular grooves (501), wherein the group of second annular grooves (501) are formed on the outer wall of the central tube (7), and second O-type sealing rings (502) are provided in each of the second annular grooves (501).

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