CN212769998U

CN212769998U - Membrane module structure

Info

Publication number: CN212769998U
Application number: CN202021172492.XU
Authority: CN
Inventors: 戎嵘
Original assignee: Shanghai Zhuoer Environmental Protection Technology Co ltd
Current assignee: Shanghai Zhuoer Environmental Protection Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-23
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a membrane component structure, which comprises a membrane shell, an upper flange cover, a lower flange cover and a cavity formed by a hollow fixed pull rod in the membrane shell, and also comprises a valve plate, a filtering membrane, a valve plate sealing ring and an inlet and outlet connecting piece arranged in the lower flange cover, wherein the valve plate, the filtering membrane and the valve plate sealing ring are tightly sleeved on the hollow fixed pull rod, the lower end of the hollow fixed pull rod passes through the lower flange cover, and the upper end of the hollow fixed pull rod is limited in a movable block fixed on the upper flange cover; the inner surfaces of the upper end and the lower end of the membrane shell are respectively provided with a plurality of stop block fixing grooves which correspond to the fixed end cover stop blocks, and the end cover stop blocks are respectively fixed on the upper flange cover and the lower flange cover through bolts. The utility model discloses a change membrane module structural style, can effectively avoid the central pull rod fracture, the membrane module damages, and its structural style of membrane module after changing simultaneously more can guarantee the stability of system under high-pressure operation.

Description

Membrane module structure

Technical Field

The utility model relates to a water treatment field, more specifically say, are membrane module structure.

Background

The existing membrane module structure is shown in fig. 1, which is sealed under the action of pressure according to a membrane shell 1 and a lip-shaped ring 3 (in the figure, 1 is a high-pressure fastening nut, 2 is a membrane column upper end cover, 4 is a flow guide disc, 5 is a membrane column lower end cover, 6 is a high-pressure inlet pipe, and 7 is a high-pressure outlet pipe), and the membrane shell 1 has the functions of: the satin face is sealed, the transverse pressure is borne, and the vertical pressure is not borne. In the case of a membrane module subjected to internal pressure, the horizontal pulling force is transferred to the central pull rod. If the system operates under excessive pressure, the central pull rod can be broken, and the membrane assembly can be completely damaged. In the prior art, the problem that the strength of the central pull rod is increased by only additionally arranging the peripheral pull rods is solved, but the peripheral pull rods are required to bring huge structural adjustment, the installation and maintenance are inconvenient, and the cost is increased greatly.

SUMMERY OF THE UTILITY MODEL

For the problem that prior art exists more than solving, the utility model provides a membrane module structure through the part structural style who changes membrane module structural style and inside membrane module, avoids central pull rod fracture, and the membrane module damages, and its structural style of membrane module after changing simultaneously more can guarantee the stability of system under high-pressure operation.

The utility model discloses the following technical scheme of accessible realizes:

a membrane component structure comprises a membrane shell, an upper flange cover, a lower flange cover and a cavity formed by a hollow fixed pull rod in the membrane shell, and further comprises a flow distribution plate, a filtering membrane, a flow distribution plate sealing ring and an inlet and outlet connecting piece arranged in the lower flange cover, wherein the flow distribution plate, the filtering membrane and the flow distribution plate sealing ring are tightly sleeved on the hollow fixed pull rod, the lower end of the hollow fixed pull rod penetrates through the lower flange cover, and the upper end of the hollow fixed pull rod is limited in a movable block fixed on the upper flange cover; the inner surfaces of the upper end and the lower end of the membrane shell are respectively provided with a plurality of stop block fixing grooves which correspond to the fixed end cover stop blocks, and the end cover stop blocks are respectively fixed on the upper flange cover and the lower flange cover through bolts.

Furthermore, the lower end of the lower flange cover is sequentially provided with a gasket and a large nut to fasten the valve plate, the filtering membrane and the valve plate sealing ring to achieve sealing fit.

Further, the inlet and outlet connecting piece is fixed on the lower flange cover in a threaded mode through a fixing sleeve and is sealed by a sealing ring.

Furthermore, the upper flange cover and the lower flange cover are respectively provided with lip-shaped sealing rings for sealing, the openings of the lip-shaped sealing rings are inward, and the lip-shaped sealing rings are opened to contact with the membrane shell to realize sealing when the cavity is pressurized.

Furthermore, the upper end and the lower end of the membrane shell are respectively provided with three stop block fixing grooves and three end cover stop blocks.

Furthermore, a hollow fixed pull rod sealing ring is arranged between the hollow fixed pull rod and the lower flange cover.

Furthermore, a water production channel formed by the valve plate is connected with a water production collecting pipe, and the water production collecting pipe is arranged at the lower end of the lower flange cover.

Advantageous effects

1. The utility model transfers the central pull rod stress and the peripheral pull rod stress of the membrane component (such as DTRO/CDRO) to the membrane shell through the stop block by changing the structure of the membrane component; the membrane component solves the problem that the membrane component of the existing membrane component can only be additionally provided with peripheral pull rods to increase the strength in a high-pressure water treatment environment, and solves the problems of inconvenience in installation and maintenance and huge cost increase caused by the addition of the peripheral pull rods.

2. The utility model discloses central pull rod atress and the pull rod atress all around to the membrane module shifts the atress to the membrane shell through the dog on, the cracked problem of central pull rod has been solved in the change of this kind of membrane module structure under the pull rod is as supplementary tensile water treatment operational aspect all around not having, lets the membrane module steady operation under high operating pressure.

3. The utility model discloses place the membrane shell in the required membrane part in, it is more huge to have solved traditional membrane internal part pressurized, leads to membrane internal part to damage the problem of warping, membrane component damage. The utility model discloses a membrane module is in equal pressure vessel, and the internal part atress difference is little, and part pressurized unbalance can not appear, and the dog is add to the outside simultaneously, and the dog passes through the atress and shifts the membrane shell, and then shifts the membrane shell to all atresss, and the only part is shifted to all atress of system, has solved the damage problem that each item part of membrane module leads to because of the atress.

4. The utility model discloses can realize the big membrane module of transmembrane pressure difference and realize parallelly connected use, can be used in the membrane module transmembrane pressure difference low-level down the same membrane shell of many membranes carry out series connection simultaneously. The problems of single membrane connection mode and poor water treatment process strain property (adaptability) are solved.

Drawings

FIG. 1 is a schematic diagram of a conventional membrane module structure;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 internal swirl diagram;

fig. 4 water flow-S flow schematic.

In the drawings

1. A hollow fixed pull rod; 2. an inlet and outlet connecting piece; 3. fixing a sleeve; 4. a high-pressure inlet and outlet connecting piece sealing ring; 5. a small nut; 6. a large nut; 7. a gasket; 8. a produced water collecting pipe; 9. a hollow fixed pull rod sealing ring; 10. a lower flange cover; 11. a valve plate; 12. a filtration membrane; 13. a valve plate seal ring; 14. an upper flange cover; 15. a movable block; 16. a lip-shaped seal ring; 17. a pressure-bearing membrane shell; 18. an end cap stop block;

Detailed Description

The following description of the embodiments of the present invention is provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.

As shown in fig. 2, the utility model discloses a membrane module structure, including membrane shell 17, upper flange lid 14, the cavity that cavity fixed pull rod 1 formed in lower flange lid 10 and the membrane shell 17, still include valve plate 11, filtration membrane 12, valve plate sealing washer 13 and locate exit connecting piece 2 in the lower flange lid 10, valve plate 11, filtration membrane 12, valve plate sealing washer 13 tightly overlaps on the fixed pull rod of cavity, lower flange lid 10 lower extreme establishes gasket 7 and big nut 6 in proper order with valve plate 11, filtration membrane 12 and valve plate sealing washer 13 fastening, reach sealed cooperation. The lower end of the hollow fixed pull rod 1 penetrates through the lower flange cover 10, and the upper end of the hollow fixed pull rod is limited in a movable block 15 fixed on an upper flange cover 14; the internal surface of membrane shell 17 upper and lower extreme is equipped with a plurality of dog fixed slots respectively, and it corresponds fixed end cover dog 18, and end cover dog 18 passes through the bolt fastening respectively and covers 14 and lower flange lid 10 at last flange, and in this embodiment, the upper and lower extreme of membrane shell 17 is equipped with three dog fixed slot and three end cover dog 18 respectively.

Wherein, the small nut 5 is used for fixing the hollow fixed pull rod 1.

Wherein, the inlet and outlet connecting piece 2 is fixed on the lower flange cover 10 in a thread mode through a fixing sleeve 3 and is sealed by a high-pressure inlet and outlet connecting piece sealing ring 4.

The upper flange cover 14 and the lower flange cover 10 are respectively provided with lip-shaped sealing rings 16 for sealing, the lip-shaped sealing rings 16 are opened inwards, and when the cavity is pressurized, the lip-shaped sealing rings 16 are opened to contact with the membrane shell 17 for sealing.

Wherein, a hollow fixed pull rod sealing ring 9 is arranged between the hollow fixed pull rod 1 and the lower flange cover 10.

Wherein, the water production channel formed by the valve plate 11 is connected with the water production collecting pipe 8, and the water production collecting pipe 8 is arranged at the lower end of the lower flange cover 10.

When the water-saving membrane module works, high-pressure water flow in an inner cavity of the membrane module enters the interior of the membrane module through the left side of the inlet-outlet connecting piece 2, the water flow firstly flows in a cavity formed by the pressure-bearing membrane shell 17 and the outer side of the port plate 11, the water flow flows through the top into a cavity formed by the upper flange cover 14 and the hollow fixed pull rod 1, and flows in a membrane filtering cavity at the lower part through twelve plate surface through holes at the top of the hollow fixed pull rod 1, the flow discharge direction of the water flow-rotational flow form (20 in figure 3) is realized according to different 11 port plate structure forms, meanwhile, the flow direction of the water flow-S form (21 in figure 4) can also be realized, the water flow realizes the water separation on the surfaces of the port plate 11 and the filtering membrane 12 under high pressure, the separated produced water and the separated concentrated water are separated through the port plate sealing ring 13, and the separated produced water is finally collected and delivered through the produced water collecting, the structure also realizes the bidirectional use of the water production channel, can realize that the hollow fixed pull rod 1 produces water and can also realize that the water production collecting pipe 8 produces water to collect.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A membrane module structure is characterized by comprising a membrane shell (17), an upper flange cover (14), a lower flange cover (10) and a cavity formed by a hollow fixed pull rod (1) in the membrane shell (17), and further comprising a valve plate (11), a filtering membrane (12), a valve plate sealing ring (13) and an inlet-outlet connecting piece (2) arranged in the lower flange cover (10), wherein the valve plate (11), the filtering membrane (12) and the valve plate sealing ring (13) are tightly sleeved on the hollow fixed pull rod, the lower end of the hollow fixed pull rod penetrates through the lower flange cover (10), and the upper end of the hollow fixed pull rod is limited in a movable block (15) fixed on the upper flange cover (14); the inner surfaces of the upper end and the lower end of the membrane shell are respectively provided with a plurality of stop block fixing grooves which correspond to the fixed end cover stop blocks (18), and the end cover stop blocks (18) are respectively fixed on the upper flange cover (14) and the lower flange cover (10) through bolts.

2. The membrane module structure according to claim 1, characterized in that the gasket (7) and the large nut (6) are arranged at the lower end of the lower flange cover (10) in sequence to fasten the port plate (11), the filtering membrane (12) and the port plate sealing ring (13) to achieve sealing fit.

3. Membrane module structure, according to claim 1, characterized in that said inlet and outlet connections (2) are fixed in a threaded manner to the lower flange cover (10) by means of fixing sleeves and sealed with sealing rings.

4. The membrane module structure according to claim 1, characterized in that the upper flange cover (14) and the lower flange cover (10) are respectively provided with lip-shaped sealing rings (16) for sealing, the lip-shaped sealing rings (16) are opened inwards, and the lip-shaped sealing rings (16) are opened to contact with the membrane shell (17) to realize sealing when the cavity is pressurized.

5. The membrane module structure according to claim 1, wherein the upper and lower ends of the membrane housing are provided with three block fixing grooves and three end cap blocks (18), respectively.

6. A membrane module arrangement according to claim 1, characterized in that a hollow stationary tie rod sealing ring (9) is provided between the hollow stationary tie rod (1) and the lower flange cover (10).

7. A membrane module structure according to claim 1, characterized in that the port plate (11) forms a water production channel and a water production collecting pipe (8), and the water production collecting pipe (8) is arranged at the lower end of the lower flange cover (10).