CN218358489U - Membrane end cover and membrane end cover subassembly - Google Patents

Abstract

The application relates to membrane filtration technology field especially relates to a membrane end cover and membrane end cover subassembly, include: a first end plate and a second end plate; the first end plate is provided with a plurality of through concave holes, inlets of the concave holes are used for penetrating the membrane tubes, outlets of the concave holes are used for extending out of the membrane tubes, and the size of the inlets of the concave holes is smaller than that of the outlets of the concave holes; the second end plate is provided with a plurality of through convex holes, the outer walls of the convex holes extend from the first side surface of the second end plate to the direction far away from the first side surface of the second end plate, and the size of the inlets of the convex holes is smaller than that of the outlets of the convex holes; the hole outer wall of the convex hole is used for being inserted into the tube hole of the film tube, and when the first side surface of the second end plate is buckled to the second side surface of the first end plate, the hole outer wall of the convex hole is used for extending into the concave hole from the outlet of the concave hole so as to compress and fix the film tube. The application can lead the use condition and the use range of the membrane tube to be wider, and lead the membrane filtration area of the unit volume of the membrane filter to be larger, thus improving the filtration effect.

Description

Membrane end cover and membrane end cover subassembly

Technical Field

The application relates to the technical field of membrane filtration, in particular to a membrane end cover and a membrane end cover assembly.

Background

Currently, in the technical field of membrane filtration, nine membrane end caps are adopted, and fig. 1 and 2 show two forms of nine membrane end caps, which occupy most of nine membrane end caps on the market.

As shown in fig. 1 and 2, the nine-piece membrane end cap 100 has nine membrane tube mounting holes 110, and one membrane tube extends through one membrane tube mounting hole 110, so that the nine-piece membrane end cap 100 is suitable for mounting nine membrane tubes. The aperture of the membrane tube suitable for nine membrane end covers 100 is large, generally 16.5mm, and the great aperture makes the hardness of the membrane tube unable to reach the straightness that hangs down of industrial production process conditions in the membrane filter, therefore the membrane is intraductal to have still run through the membrane to support, install the medial surface of nine membrane end covers 110 towards the filter chamber of membrane filter like this, make membrane tube and membrane support to be located the filter chamber, thereby support the supporting role to the membrane tube through the membrane, make the hardness of membrane tube can reach the straightness that hangs down of industrial production process conditions in the filter chamber of membrane filter, thereby make the membrane tube in the filter chamber of membrane filter keep unobstructed.

In order to seal the membrane tube penetrating through the membrane tube mounting hole 110 and the nine membrane end caps 100, so that the stock solution in the filtration cavity of the membrane filter is isolated from the filtrate which is filtered by the membrane tube and flows out to the outside of the nine membrane end caps 100, two membrane supports are further arranged on the membrane supports, the small ends of the two membrane supports extend out of the membrane tube mounting hole 110 and are fixedly connected with the support short tube 200 (shown in fig. 3 and 4), and the two membrane supports and the support short tube 200 press the membrane tube onto the nine membrane end caps 100, so that the membrane tube and the nine membrane end caps 100 are sealed.

The use condition and the use range of the membrane tube are limited due to the materials of the membrane support (comprising two membrane supports) and the support short tube, namely: strong acid, strong base, high temperature and free chlorine can greatly shorten the service life of the membrane support (including two membrane supports) and the support short pipe, thereby causing the membrane pipe to be scrapped in advance, and therefore the membrane pipe is used in a certain pH value and temperature and the environment without free chlorine.

In addition, the number of the membrane tube mounting holes 110 formed in the nine membrane end caps 100 is small, so that the membrane filtration area per unit volume of the membrane filter is small, thereby affecting the filtration effect.

Therefore, how to make the use condition and the use range of the membrane tube wider and make the membrane filtration area per unit volume of the membrane filter larger to improve the filtration effect is a technical problem to be solved by those skilled in the art at present.

SUMMERY OF THE UTILITY MODEL

The application provides a membrane end cover and membrane end cover subassembly to make the service condition and the application range of membrane pipe wider, and make membrane filter's unit volume's membrane filter area great, in order to improve the filter effect.

In order to solve the technical problem, the application provides the following technical scheme:

a membrane end cap comprising: a first end plate and a second end plate; the first end plate is provided with a plurality of concave holes penetrating through two sides, inlets of the concave holes are used for penetrating the membrane tubes, outlets of the concave holes are used for extending out of the membrane tubes, and the size of the inlets of the concave holes on the first side surface of the first end plate is smaller than that of the outlets of the concave holes on the second side surface of the first end plate; the second end plate is provided with a plurality of convex holes penetrating through two sides, the outer walls of the holes of the convex holes on the first side surface of the second end plate extend from the first side surface of the second end plate to the direction far away from the first side surface of the second end plate, and the size of the inlets of the convex holes on the first side surface of the second end plate is smaller than that of the outlets of the convex holes on the second side surface of the second end plate; the hole outer wall of the convex hole is used for being inserted into the tube hole of the membrane tube, and when the first side surface of the second end plate is buckled to the second side surface of the first end plate, the hole outer wall of the convex hole is used for extending into the concave hole from the outlet of the concave hole to compress and fix the membrane tube.

The membrane end cap as described above, wherein, preferably, the shape of the cross section of the concave hole perpendicular to the axial direction is circular, and the diameter of the concave hole gradually increases from the inlet of the concave hole to the outlet of the concave hole; the shape of the cross section of the convex hole perpendicular to the axial direction is circular, and the diameter of the convex hole is gradually increased from the inlet of the convex hole to the outlet of the convex hole.

The membrane end cap as described above, wherein preferably the diameter of the entrance of the recess is 6mm; the diameter of the inlet of the convex hole at the first side surface side of the second end plate is less than 6mm.

In the membrane end cap, preferably, 51 concave holes are formed in the first end plate; the second end plate is provided with 51 convex holes.

The membrane end cap as described above, wherein, preferably, the plurality of concave holes are located at a central position of the first end plate, and the edge position of the second side surface of the first end plate is provided with a plurality of fastening fixing holes; the plurality of convex holes are positioned in the center of the second end plate, and a plurality of buckling through holes penetrating through two sides are formed in the edge of the second end plate; the buckling connecting piece penetrates through the buckling through hole and extends into the buckling fixing hole so as to enable the first end plate and the second end plate to be buckled and fixed.

In the membrane end cap as described above, preferably, the first end plate is provided with 6 engagement fixing holes, and the second end plate is provided with 6 engagement through holes.

The membrane end cover as described above, wherein, preferably, 6 fastening fixing holes are uniformly distributed on the first end plate, and 6 fastening through holes are uniformly distributed on the second end plate.

The membrane end cover as described above, wherein preferably, a plurality of first fixing mounting holes penetrating through both sides are provided at an edge position of the first end plate; a plurality of second fixed mounting holes penetrating through two sides are formed in the edge position of the second end plate; the fixed connecting piece penetrates through the second fixed mounting hole and the first fixed mounting hole and extends into the fixed connecting hole of the membrane filter, so that the first end plate and the second end plate are fixedly mounted on the membrane filter.

The membrane end cap as described above, wherein preferably, the first end plate is provided with 3 first fixing mounting holes, and the second end plate is provided with 3 second fixing mounting holes.

A membrane end cap assembly comprising: a membrane tube and a membrane end cap according to any preceding claim, the membrane tube being press-fitted onto the membrane end cap.

Compared with the background art, the membrane end cover and the membrane end cover assembly provided by the application can enable the use condition and the use range of the membrane tube to be wider, enable the membrane filtration area of the unit volume of the membrane filter to be larger, and improve the filtration effect.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art according to these drawings.

FIG. 1 is a schematic illustration of a nine-membrane end cap of one example of the prior art;

FIG. 2 is a schematic illustration of a nine-membrane end cap of another example in the prior art;

FIG. 3 is a perspective view of a prior art support spool;

FIG. 4 is another perspective view of a prior art support spool;

FIG. 5 is a schematic view of a membrane end cap provided by an embodiment of the present application;

FIG. 6 is a schematic view of a first end plate of a membrane end cap provided by an embodiment of the present application;

FIG. 7 is a schematic view of a second end plate of a membrane end cap provided by an embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

Referring to fig. 5, fig. 5 is a schematic view of a membrane end cap according to an embodiment of the present disclosure.

The present application provides a membrane end cap 500 comprising: a first end plate 510 and a second end plate 520, wherein the first end plate 510 and the second end plate 520 are buckled and fixedly connected.

Referring to fig. 6, fig. 6 is a schematic view of a first end plate of a membrane end cap according to an embodiment of the present disclosure.

The first end plate 510 is provided with a plurality of concave holes 511 penetrating through two sides, and the size of the inlet of the concave hole 511 on the first side surface of the first end plate 510 is smaller than the size of the outlet of the concave hole 511 on the second side surface of the first end plate 510. Optionally, the shape of the cross section of the concave hole 511 perpendicular to the axial direction is circular, and from the inlet of the concave hole 511 to the outlet of the concave hole 511, the diameter of the concave hole 511 is gradually increased, thereby ensuring that the inner wall of the concave hole 511 is relatively smooth. Still alternatively, the recess 511 has a diameter of 6mm at the entrance of the first side of the first end plate 510, so that a membrane tube having a diameter of 6mm can be inserted. Optionally, 51 concave holes 511 are formed in the first end plate 510, so that 51 membrane tubes can be mounted.

Referring to fig. 7, fig. 7 is a schematic view of a second end plate of a membrane end cap according to an embodiment of the present disclosure.

The second end plate 520 is provided with a plurality of protruding holes 521 penetrating through two sides, and the outer walls of the holes on the first side surface of the second end plate 520, which are located on the protruding holes 521, extend from the first side surface of the second end plate 520 to a direction away from the first side surface of the second end plate 520, so that the walls of the holes of the protruding holes 521 protrude. In addition, the size of the inlet of the male hole 521 at the first side of the second end plate 520 is smaller than the size of the outlet of the male hole 521 at the second side of the second end plate 520. Optionally, the cross section of the convex hole 521 perpendicular to the axial direction is circular, and the diameter of the convex hole 521 gradually increases from the inlet of the convex hole 521 to the outlet of the convex hole 521, so as to ensure that the outer wall of the convex hole 521 is smooth. Still alternatively, the diameter of the inlet of the convex hole 521 at the first side surface side of the second end plate 521 is less than 6mm, so that the inlet of the convex hole 521 can be inserted into the tube hole of the membrane tube. Optionally, the second end plate 520 is provided with 51 convex holes 521, so that 51 membrane tubes can be inserted.

The membrane tubes pass from the first side of the first end plate 510 into the inlet of the recess 511 and the membrane tubes extend from the second side of the first end plate 510 out of the outlet of the recess 511; the first side surface of the second end plate 520 is fastened to the second side surface of the first end plate 510, the outer wall of the hole extending from the first side surface of the second end plate 520 to the direction far away from the first side surface of the second end plate 520 of the convex hole 521 is inserted into the tube hole of the membrane tube, and the outer wall of the hole of the convex hole 521 further extends into the concave hole 511 from the outlet of the concave hole 511. Thus, the first end plate 510 and the second end plate 520 are fastened and fixed, and the inner wall of the hole of the concave hole 511 and the outer wall of the hole of the convex hole 521 are extruded, so that the membrane tube is fixed on the membrane end cover 500, the space in the tube hole of the membrane tube is separated from the space outside the tube hole of the membrane tube, the raw liquid in the filter cavity of the membrane filter is isolated from the filtrate filtered by the membrane tube and flowing out, the safety in production and operation is ensured, the membrane support and the short support tube are avoided, the integral membrane end cover assembly (the membrane end cover and the membrane tube) can resist strong acid, strong base and free chlorine, the application range of the integral membrane end cover assembly is greatly increased, the membrane can be cleaned locally, the existing chlorine-containing dilute saline water and the like in a production plant can be utilized for cleaning, and the use of medicines is greatly saved.

Just because the membrane end cover 500 in this application can avoid using the membrane to support, two and support the stub pipe for the membrane, thereby can make the size of membrane pipe less, so the size of the shrinkage pool 511 of first end plate 510 and the bulge hole 521 on the second end plate 520 also can reduce, thereby can open a hole more on the shrinkage pool 511 of making first end plate 510 and the second end plate 520, consequently the membrane end cover 500 of this application can make the membrane filtration area greatly increased in the membrane filter of same volume, thereby make the filter flux bigger in the same time, the filter effect of membrane filter has been improved, the investment has been practiced thrift, the equipment area is practiced thrift. For example: the number of the mounting holes for mounting the membrane end covers of the DN2400 membrane filter is 300, if the nine existing membrane end covers 100 are used, the membrane filtration surface of the membrane filter is 300x3.14x16.5x9=139887mm2, and if the membrane end cover of the application is used, the membrane filtration area of the membrane filter is 300x3.14x6x51=288252mm2, obviously, the membrane end cover of the application can greatly increase the membrane filtration area of the membrane filter, and the filtration effect of the membrane filter is improved.

In addition, the plurality of concave holes 511 may be located at the center of the first end plate 510, so that a plurality of fastening holes 512 are disposed at the edge of the second side surface of the first end plate 510; the plurality of protrusion holes 521 are located at the center of the second end plate 520, and a plurality of engagement through holes 522 penetrating through both sides are formed at the edge of the second end plate 520; the first end plate 510 and the second end plate 520 are fastened and fixed by the fastening connector penetrating through the fastening through hole 522 and extending into the fastening fixing hole 512. Optionally, the first end plate 510 is provided with 6 fastening holes 512, and the second end plate 520 is provided with 6 fastening through holes 522. Optionally, the 6 fastening holes are uniformly distributed on the first end plate 510, and the 6 fastening through holes 522 are uniformly distributed on the second end plate 520. Optionally, the fastening fixing hole 512 and the fastening through hole 522 are both threaded holes, and the fastening connector is a screw, and the screw is in threaded connection with the fastening fixing hole 512 and the fastening through hole 522.

In addition, in order to fixedly mount the membrane end cap 500 to the membrane filter, the edge position of the first end plate 510 of the membrane end cap 500 of the present application is provided with a plurality of fixed mounting holes 513 penetrating both sides; a plurality of fixed mounting holes 523 penetrating through two sides are arranged at the edge position of the second end plate 520 of the membrane end cover 500; the membrane end cover 500 is fixedly mounted to the membrane filter by fixing the connection member to penetrate the fixing mounting hole 523 and the fixing mounting hole 513 and to extend into the fixing connection hole of the membrane filter. Optionally, the first end plate 510 is provided with 3 fixed mounting holes 513, and the second end plate 520 is provided with 3 fixed mounting holes 523. Optionally, 3 fixing holes 513 are uniformly distributed on the first end plate 510, and 3 fixing holes 523 are uniformly distributed on the second end plate 520. Alternatively, two engagement fixing holes 512 are provided between two adjacent fixing holes 513, and two engagement through holes 522 are provided between two adjacent fixing holes 523. Optionally, the fixing mounting holes 513 and 523 are threaded holes, and the fixing connectors are screws, and the screws are in threaded connection with the fixing mounting holes 513 and 523.

In addition, the first end plate 510 and the second end plate 520 of the membrane end cap 500 in the present application have the same shape as the nine membrane end caps in the prior art, so that the membrane end cap 500 in the present application can also be used in the existing membrane filter, and the application is more flexible.

The present application further provides a membrane end cap assembly comprising: a membrane tube and the membrane end cap 500 described above, the membrane tube being fixedly mounted to the membrane end cap.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. A membrane end cap, comprising: a first end plate and a second end plate;

the first end plate is provided with a plurality of concave holes penetrating through two sides, inlets of the concave holes are used for penetrating the membrane tubes, outlets of the concave holes are used for extending out of the membrane tubes, and the size of the inlets of the concave holes on the first side surface of the first end plate is smaller than that of the outlets of the concave holes on the second side surface of the first end plate;

the second end plate is provided with a plurality of convex holes penetrating through two sides, the outer walls of the holes of the convex holes on the first side surface of the second end plate extend from the first side surface of the second end plate to the direction far away from the first side surface of the second end plate, and the size of the inlets of the convex holes on the first side surface of the second end plate is smaller than that of the outlets of the convex holes on the second side surface of the second end plate;

the hole outer wall of the convex hole is used for being inserted into the tube hole of the membrane tube, and when the first side surface of the second end plate is buckled to the second side surface of the first end plate, the hole outer wall of the convex hole is used for extending into the concave hole from the outlet of the concave hole to compress and fix the membrane tube.

2. The membrane end cap of claim 1, wherein the cross-section of the recess perpendicular to the axial direction is circular in shape, and the diameter of the recess increases from the inlet of the recess to the outlet of the recess;

the shape of the cross section of the convex hole perpendicular to the axial direction is circular, and the diameter of the convex hole is gradually increased from the inlet of the convex hole to the outlet of the convex hole.

3. The membrane end cap of claim 2, wherein the diameter of the entrance of the recess is 6mm; the diameter of the inlet of the convex hole at the first side surface side of the second end plate is less than 6mm.

4. A membrane end cap according to claim 2 or claim 3, wherein the first end plate is provided with 51 recesses; the second end plate is provided with 51 convex holes.

5. The membrane end cap of any one of claims 1-3, wherein a plurality of recesses are centrally located in the first end plate, and a plurality of snap-fit securing holes are provided at an edge of the second side of the first end plate;

the plurality of convex holes are positioned in the center of the second end plate, and a plurality of buckling through holes penetrating through two sides are formed in the edge of the second end plate;

the buckling connecting piece penetrates through the buckling through hole and extends into the buckling fixing hole so as to enable the first end plate and the second end plate to be buckled and fixed.

6. The membrane end cap of claim 5, wherein the first end plate has 6 snap-fit holes and the second end plate has 6 snap-fit through holes.

7. The membrane end cap of claim 6, wherein 6 fastening holes are evenly distributed on the first end plate and 6 fastening through holes are evenly distributed on the second end plate.

8. The membrane end cap of claim 5, wherein the edge position of the first end plate is provided with a plurality of first fixing mounting holes penetrating through both sides;

a plurality of second fixed mounting holes penetrating through two sides are formed in the edge position of the second end plate;

the fixed connecting piece penetrates through the second fixed mounting hole and the first fixed mounting hole and extends into the fixed connecting hole of the membrane filter, so that the first end plate and the second end plate are fixedly mounted on the membrane filter.

9. The membrane end cap of claim 8, wherein the first end plate has 3 first fixed mounting holes and the second end plate has 3 second fixed mounting holes.

10. A membrane end cap assembly, comprising: a membrane tube and a membrane end cap according to any one of the preceding claims 1-9, the membrane tube being press-fitted onto the membrane end cap.

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