Ultrafiltration membrane shell with movable interface

Abstract

The ultrafiltration membrane shell comprises a shell body and end covers fixed at the two ends of the shell body, a sliding groove is formed in the outer wall of each end cover, a long-groove-shaped flow guide groove is formed in the groove bottom of each sliding groove, and a water passing opening is formed in the middle of each flow guide groove; an arc-shaped sliding piece and a stopping block are installed in the sliding groove, and the sliding piece is limited in the sliding groove through the stopping block; the sliding piece can move along the sliding groove, a connector is arranged in the middle of the sliding piece, and the connector is communicated with the water passing opening through the flow guide groove. According to the ultra-filtration membrane shell, the interface of the end cover is arranged on the arc-shaped sliding piece and is arranged with the end cover body, and the sliding piece can axially move to a certain extent under the limitation of the sliding groove and the stop block, so that the position of the interface is finely adjusted, the ultra-filtration membrane shell is conveniently connected with pipelines of various specifications, the universality of the ultra-filtration membrane shell is improved, and the ultra-filtration membrane shell is more convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration membranes, and particularly relates to an ultrafiltration membrane housing with movable interfaces. Background Art

[0002] Ultrafiltration is one of the membrane separation technologies driven by pressure, aiming at separating macromolecules from small molecules, and the membrane pore size is between 20 - 1000 Å. The hollow fiber ultrafilter (membrane) has the advantages of high filling density per unit container and small floor area.

[0003] At present, after long-term use of the ultrafiltration membrane, problems such as broken filaments, reduced water flux, and deteriorated water quality will occur, and the performance cannot be guaranteed. Therefore, after the ultrafiltration device has been used for a certain number of years, the membrane module needs to be replaced. However, the structures of the membrane modules produced by different manufacturers are different. For membrane modules of the same size, the positions of the water inlet and outlet may have slight differences and cannot be directly connected to the pipeline of the ultrafiltration device. In some cases, adapters need to be added. This greatly increases the difficulty and cost of replacing the membrane module. Content of the Utility Model

[0004] In order to solve the above problems, the utility model provides an ultrafiltration membrane housing with movable interfaces, which can finely adjust the positions of the water inlet and outlet to meet the installation requirements of different pipelines.

[0005] To this end, the technical solution of the utility model is: an ultrafiltration membrane housing with movable interfaces, including a housing and end caps fixed at both ends of the housing. A chute is provided on the outer wall of the end cap, and a long groove-shaped diversion groove is provided at the bottom of the chute. A water passing port is provided in the middle of the diversion groove. An arc-shaped sliding member and a blocking block are installed in the chute, and the blocking block restricts the sliding member in the chute. The sliding member can move along the chute, and an interface is provided in the middle of the sliding member. The interface is connected to the water passing port through the diversion groove.

[0006] On the basis of the above solution and as a preferred solution of the above solution: A plurality of sealing ring installation grooves are provided around the diversion groove, and the sliding member and the diversion groove are hermetically matched through a sealing ring.

[0007] On the basis of the above solution and as a preferred solution of the above solution: The chute extends inward from one end close to the housing to form a first limiting groove, and the other end of the chute is an opening. The sliding member is inserted into the chute from the opening, and the blocking block closes the opening of the chute.

[0008] On the basis of the above solution and as a preferred solution of the above solution: The blocking block is of an arc-shaped structure, and a second limiting groove is provided on the side facing the sliding member.

[0009] Based on the above solution and as a preferred solution to the above solution: The two groove walls of the sliding groove are provided with limiting groove edges, the left and right sides of the sliding piece are placed inside the limiting groove edges, and the front and rear ends of the sliding piece are respectively placed inside the first limiting groove and the second limiting groove.

[0010] Based on the above solution and as a preferred solution to the above solution: The length of the sliding piece is less than the distance between the bottoms of the first limiting groove and the second limiting groove.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The interface of the end cover is arranged on an arc-shaped sliding piece, which is arranged with the end cover body. The sliding piece can move axially to a certain extent under the limitation of the sliding groove and the blocking block, so as to finely adjust the position of the interface, which is convenient for connecting with various specifications of pipelines, improves the versatility of the ultrafiltration membrane housing, and makes the installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a structural sectional view of the present utility model;

[0014] Figure 3 is a schematic diagram of the movement of the sliding piece of the present utility model;

[0015] Figure 4 is an exploded view of the parts of the end cover of the present utility model;

[0016] Figure 5 is a schematic structural diagram of the sliding piece of the present utility model.

[0017] In the figure, the markings are: housing 1, end cover 2, sliding groove 21, diversion groove 22, water inlet 23, limiting groove edge 24, first limiting groove 25, opening 26, sealing ring installation groove 27, sliding piece 3, interface 31, sealing ring 4, blocking block 5, second limiting groove 51. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In the description of the present utility model, it should be noted that for the orientation terms, if there are terms such as "center", "horizontal (X)", "vertical (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and position relationships indicated are based on the orientation or position relationships shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.

[0019] In addition, terms such as "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more such features. In the description of the present utility model, the meanings of "several" and "a number of" are two or more, unless otherwise specifically defined.

[0020] Refer to the attached drawings. The ultrafiltration membrane housing with a movable interface described in this embodiment includes a housing 1 and end caps 2 fixed at both ends of the housing. The housing 1 can be used to accommodate hollow fiber membranes, and the end caps 2 are locked and fixed or melt-fixed to the housing 1 as a whole.

[0021] On the outer wall of the end cap 2, there is a chute 21. The bottom of the chute 21 is an arc surface. A long groove-shaped diversion groove 22 is provided at the bottom 21 of the chute. A water passing port 23 is provided in the middle of the diversion groove 22. The diversion groove 22 can expand the connection range of the water passing port 23. On both side walls of the chute 21, there are limit groove edges 24. One end of the chute 21 close to the housing extends inwards to form a first limit groove 25, and the other end of the chute is an opening 26, which is convenient for the sliding member 3 to be inserted into the chute.

[0022] An arc-shaped sliding member 3 is installed in the chute 21. The sliding member 3 is inserted into the chute 21 from the opening 26 and can move along the chute 21. An interface 31 is provided in the middle of the sliding member 3. The interface 31 is connected to the water passing port 23 through the diversion groove 22. A plurality of sealing ring installation grooves 27 are provided around the diversion groove 22. The sliding member 3 and the diversion groove 22 are hermetically fitted through a sealing ring 4. The moving range of the interface 31 is within the range of the diversion groove 22, that is, the water passing port 23 can be connected through the diversion groove 22, so as to adjust the distance between the two water inlet and outlet interfaces on the two end caps.

[0023] A blocking block 5 is provided at the opening of the chute 21. The blocking block 5 is also an arc-shaped structure, and a second limit groove 51 is provided on the side facing the sliding member 3. The blocking block 5 can be melt-fixed or welded to the end cap 2. The blocking block 2 closes the opening 26 of the chute 21 and can limit the sliding member 3 within the chute 21.

[0024] The left and right sides of the sliding piece 3 are placed in the limit groove edges 24 on both sides of the chute 21. The front and rear ends of the sliding piece 3 are respectively placed in the first limit groove 25 and the second limit groove 51, and the length L1 of the sliding piece 3 is less than the distance L2 between the bottoms of the first limit groove 25 and the second limit groove 51, which is convenient for the sliding piece 3 to move within the ranges of the first limit groove 25 and the second limit groove 51 to finely adjust the position of the interface.

[0025] During installation, first fixedly install the end cover 2 and the housing 1 together. Assemble the corresponding sealing ring 4 in the sealing ring installation groove 27. Then insert the sliding piece 3 from the opening of the sliding groove 21, and seal the opening of the sliding groove with the blocking block 5, and fix the blocking block 5 and the end cover 2 together. Depending on the material of the end cover, choose melting or welding for fixation. At this time, the sliding piece is placed in the sliding groove, and the position of the interface can be adjusted within the range of the sliding groove, so as to be applicable to ultrafiltration devices with slightly different pipeline spacings, and improve the versatility of the ultrafiltration membrane module.

[0026] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. An ultrafiltration membrane housing with a movable interface, comprising a housing and end caps fixed at both ends of the housing, characterized in that: The end cover is provided with a slide groove on the outer wall, the bottom of the slide groove is provided with a long groove-shaped guide groove, and a water outlet is provided in the middle of the guide groove; an arc-shaped sliding member and a blocking block are installed in the slide groove, and the blocking block restricts the sliding member in the slide groove; the sliding member can move along the slide groove, and an interface is provided in the middle of the sliding member, which is connected with the water outlet through the guide groove.

2. The ultrafiltration membrane housing with a movable interface as claimed in claim 1, characterized in that: The periphery of the guide groove is provided with a plurality of sealing ring installation grooves, and the sliding member and the guide groove are sealed by the sealing rings.

3. The ultrafiltration membrane housing with a movable interface as claimed in claim 1, characterized in that: The first limiting groove is extended inwardly from one end of the slide groove close to the shell, and the other end of the slide groove is an opening. The sliding member is inserted into the slide groove from the opening, and the blocking block closes the opening of the slide groove.

4. The ultrafiltration membrane housing with a movable interface as claimed in claim 3, characterized in that: The blocking block is an arc-shaped structure, and is provided with a second limiting groove on one side facing the sliding member.

5. The ultrafiltration membrane housing with a movable interface as claimed in claim 4, characterized in that: The two groove walls of the sliding groove are provided with limiting groove edges, the left and right sides of the sliding piece are placed in the limiting groove edges, and the front and rear ends of the sliding piece are respectively placed in the first limiting groove and the second limiting groove.

6. The ultrafiltration membrane housing with a movable interface as claimed in claim 5, characterized in that: The length of the sliding sheet is smaller than the distance between the bottom of the first limiting groove and the bottom of the second limiting groove.

Images