High-pressure spiral-wound membrane STRO membrane structure

Abstract

The utility model discloses a high pressure spiral-wound membrane STRO membrane structure, relates to STRO membrane subassembly technical field, including shell, STRO membrane element and permeate filter core column, the inner wall of shell is connected with STRO membrane element, and the inside of STRO membrane element is connected with permeate filter core column, and the inside of permeate filter core column is in butt joint with central pull rod. When the high-pressure spiral-wound membrane STRO membrane structure is used, the membranes and the separation nets are mutually alternated to form a trapezoidal open flow channel, so that the width of the flow channel is larger, organic pollutants with higher numerical values can be borne, and raw water is prevented from directly impacting an STRO membrane element through an anti-impact baffle arranged on the lower flange, so that the high-pressure spiral-wound membrane STRO membrane structure has anti-pollution and anti-impact effects, and the service life of the STRO membrane structure is prolonged. The lower flange is limited through the limiting seat, the lower flange is prevented from moving at will, then the stability of the lower flange is improved, and therefore when the high-pressure spiral-wound membrane STRO membrane structure is used, the effect of conveniently limiting the lower flange is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of STRO membrane components, in particular to a high-pressure rolled membrane STRO membrane structure. Background Art

[0002] The RO reverse osmosis device passes the raw water through a fine filter, a granular activated carbon filter, etc., and then pressurizes it through a booster pump. It uses a reverse osmosis membrane with a pore size of 1 / 10000μm, also called an RO membrane, to isolate all pollutants, heavy metals, bacteria, viruses, organic matter, charged ions, colloidal particles, etc. in the raw water to produce the clearest and purest water; the traditional reverse osmosis RO treatment system is widely used in seawater desalination, industrial wastewater treatment, landfill leachate treatment, HE coal chemical wastewater treatment and other fields due to its simple structure, short process flow and low energy consumption; the high-pressure spiral membrane STRO membrane is a form of spiral reverse osmosis membrane, but it is significantly different from ordinary high-pressure spiral reverse osmosis membranes.

[0003] However, due to the extremely small pore size of RO membranes, they are easily clogged due to the influence of pollutants such as suspended matter, colloids and microorganisms, which in turn leads to a decrease in membrane flux and a decline in desalination performance. Although staff can regularly use chemical or physical cleaning methods to slow down the contamination process, these problems will still lead to frequent maintenance work, resulting in production interruptions and affecting work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a high-pressure roll-type membrane STRO membrane structure to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure rolled membrane STRO membrane structure, comprising an outer shell, a STRO membrane element and a filter core column, the inner wall of the outer shell is connected to the STRO membrane element, and the inside of the STRO membrane element is connected to the filter core column, and a center pull rod is docked inside the filter core column, the bottom end of the STRO membrane element is connected to an upper water outlet joint through an anti-impact baffle, and the top of the STRO membrane element is connected to a water inlet joint, and the outer wall of the bottom end of the center pull rod is sleeved with a water production shaft sleeve.

[0006] Preferably, water production joints are butt-jointed on both sides of the outer wall of the water production sleeve, and diaphragms and spacers are alternately arranged inside the STRO membrane element.

[0007] Preferably, the bottom end of the inner wall of the shell is connected to a lower flange, and the top end of the inner wall of the shell is connected to an upper flange.

[0008] Preferably, lip-type sealing rings are connected inside the lower flange and the upper flange, and a first O-ring is connected to the top of the lower flange through an inner hole.

[0009] Preferably, the bottom end of the lower flange is connected to a second O-ring via a mounting groove, and the bottom end of the water-producing shaft sleeve is connected to a third O-ring via a sealing groove.

[0010] Preferably, one side of the outer wall of the water production sleeve is connected to a limiting seat, and the top end of the outer wall of the limiting seat is connected to a limiting strip.

[0011] Preferably, a threaded pin is threadedly connected inside the limiting seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: when the high-pressure rolled membrane STRO membrane structure is in use, a trapezoidal open flow channel is formed by alternating diaphragms and partitions, thereby making the flow channel wider and being able to withstand higher values ​​of organic pollutants, and an anti-impact baffle configured on the lower flange to prevent raw water from directly impacting the STRO membrane element, thereby having anti-pollution and anti-impact effects, and the lower flange is limited by a limit seat to prevent it from moving at will, thereby improving the stability of the lower flange, thereby facilitating the limiting of the lower flange when the high-pressure rolled membrane STRO membrane structure is in use.

[0013] 1. In the process of water treatment through the high-pressure spiral membrane STRO membrane structure, the membrane and the spacer alternately form a trapezoidal open flow channel, which makes the flow channel wider. Compared with conventional RO, it has stronger self-cleaning and anti-pollution capabilities and can withstand higher values ​​of organic pollutants; and the anti-impact baffle configured through the lower flange prevents the raw water from directly impacting the STRO membrane element, and at the same time plays a role in distributing the raw water, so that when the high-pressure spiral membrane STRO membrane structure is used, it has the effect of anti-pollution and anti-impact;

[0014] 2. During water treatment using the high-pressure roll-type membrane STRO membrane structure, first move the limit seat to make the limit bar connect with the lower flange, then rotate the threaded pin to connect with the water production sleeve, and then limit the lower flange to prevent it from moving at will, thereby improving the stability of the lower flange, thereby facilitating the limiting of the lower flange when the high-pressure roll-type membrane STRO membrane structure is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the cutaway structure of the utility model from the left side;

[0016] Figure 2 This is a schematic diagram of the main cutaway structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the main cutaway structure of the limit seat of the utility model;

[0019] Figure 5This is a schematic diagram of the three-dimensional structure of the diaphragm of the utility model;

[0020] Figure 6 This is a schematic diagram of the utility model partition structure;

[0021] Figure 7 For this utility model Figure 6 Schematic diagram of the mid-section AA structure.

[0022] In the figure: 1. Shell; 2. STRO membrane element; 3. Filter core column; 4. Center pull rod; 5. Upper water outlet joint; 6. Lower water inlet joint; 7. Water production shaft sleeve; 8. Water production joint; 9. Diaphragm; 10. Spacer; 11. Lower flange; 12. Upper flange; 13. Lip-type sealing ring; 14. First O-ring; 15. Second O-ring; 16. Third O-ring; 17. Limit seat; 18. Limit strip; 19. Threaded pin. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 7 The utility model provides a technical solution: a high-pressure rolled membrane STRO membrane structure, including a shell 1, a STRO membrane element 2 and a filter core column 3, the inner wall of the shell 1 is connected with the STRO membrane element 2, and the inside of the STRO membrane element 2 is connected with the filter core column 3, and the inside of the filter core column 3 is connected with a central pull rod 4, the bottom end of the STRO membrane element 2 is connected with an upper water outlet joint 5 through an anti-impact baffle, and the top of the STRO membrane element 2 is connected with a lower water inlet joint 6, the outer wall of the bottom end of the central pull rod 4 is sleeved with a water production shaft sleeve 7; the outer walls of the water production shaft sleeve 7 are connected with water production joints 8 on both sides, and the STRO membrane element 2 is connected with a water production shaft sleeve 7. Diaphragms 9 and spacers 10 are alternately arranged inside the membrane element 2; a lower flange 11 is connected to the bottom end of the inner wall of the outer shell 1, and an upper flange 12 is connected to the top end of the inner wall of the outer shell 1; lip-type sealing rings 13 are connected to the inside of the lower flange 11 and the upper flange 12, and a first O-ring 14 is connected to the top end of the lower flange 11 through an inner hole; a second O-ring 15 is connected to the bottom end of the lower flange 11 through a mounting groove, and a third O-ring 16 is connected to the bottom end of the water production shaft sleeve 7 through a sealing groove; an open channel is formed between the diaphragm 9 and the spacer 10, a guide hole is opened on the outer wall of the filter core column 3, and the lower flange 11 and the upper flange 12 are parallel to each other.

[0025] In specific implementation, during the water treatment process using the high-pressure rolled membrane STRO membrane structure, the raw water is first introduced into the housing 1 through the lower water inlet joint 6, and then the water flow contacts the lower flange 11. At this time, the raw water is distributed through the lower flange 11 to avoid the direct impact of the raw water on the STRO membrane element 2. Then, the distributed raw water evenly enters the STRO membrane element 2. Under the action of high pressure, the clean water passes through the membrane 9 and the partition 10 and enters the filter core column 3. Because the membrane 9 and the partition 10 form a trapezoidal open flow channel, the flow channel width is larger. Compared with conventional RO, it has stronger self-cleaning and anti-pollution capabilities and can withstand higher values ​​of organic pollutants.

[0026] After that, the permeate flows downward along the gap between the central tie rod 4 and the filter core column 3 until the permeate enters the water production sleeve 7. Since the water production sleeve 7 is connected to the water production joint 8, the water production then flows out from the water production joint 8. The raw water keeps going upward along the STRO membrane element 2. Under the action of pressure, water production is continuously produced and collected. The raw water is gradually concentrated. The concentrated raw water is called concentrated water. After leaving the STRO membrane element 2, the concentrated water enters the upper flange 12 and is then discharged through the upper water outlet joint 5. In this process, the anti-impact baffle configured by the lower flange 11 prevents the raw water from directly impacting the STRO membrane element 2, and at the same time plays a role in distributing the raw water, so that when the high-pressure spiral membrane STRO membrane structure is used, it has the functions of anti-pollution and anti-impact.

[0027] Since lip seals 13 are disposed inside the lower flange 11 and the upper flange 12, leakage between the flange and the housing 1 is prevented under high pressure. In addition, a first O-ring 14 and a second O-ring 15 are connected inside the lower flange 11, thereby preventing leakage between the lower flange 11 and the STRO membrane element 2 and the water production sleeve 7. In addition, since a third O-ring 16 is connected inside the water production sleeve 7, leakage between the water production sleeves 7 is prevented.

[0028] See also Figure 2 and Figure 4 It can be seen that one side of the outer wall of the water production sleeve 7 is connected to the limit seat 17, and the top of the outer wall of the limit seat 17 is connected to the limit strip 18; the inner thread of the limit seat 17 is connected with a threaded pin 19; the limit seat 17 and the limit strip 18 form an integrated structure.

[0029] During specific implementation, during water treatment through the high-pressure rolled membrane STRO membrane structure, in order to improve the stability of the lower flange 11, when it is necessary to limit it, first manually move the limit seat 17. Since the limit seat 17 is connected to the limit bar 18, the movement of the limit seat 17 drives the limit bar 18 to move together until the limit seat 17 is in contact with the outer wall of the water-producing shaft sleeve 7. At this time, the limit bar 18 is connected to the lower flange 11, and since the threaded pin 19 is threadedly connected to the limit seat 17, the threaded pin 19 is then rotated to penetrate the limit seat 17 and connect with the water-producing shaft sleeve 7, thereby fixing the limit seat 17, and then limiting the lower flange 11 to prevent it from moving at will, thereby improving the stability of the lower flange 11, and finally, when the high-pressure rolled membrane STRO membrane structure is used, it plays a role in facilitating the limiting of the lower flange 11.

[0030] To sum up, when this high-pressure rolled membrane STRO membrane structure is used, the raw water is first introduced into the STRO membrane element 2 through the lower water inlet joint 6, and then the produced water flows out from the produced water joint 8, and the concentrated water is discharged through the upper water outlet joint 5, and the diaphragm 9 and the partition mesh 10 are alternately formed into a trapezoidal open flow channel, so that the flow channel width is larger and can withstand higher values ​​of organic pollutants, and the anti-impact baffle configured through the lower flange 11 prevents the raw water from directly impacting the STRO membrane element 2, and this scheme has a wider concentrated water flow channel, which can reduce membrane scaling and reduce the risk of fouling; it can also withstand higher operating pressures and improve the produced water recovery rate, while taking into account the high precision and low energy consumption characteristics of traditional RO membranes. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-pressure spiral membrane STRO membrane structure, comprising a housing (1), a STRO membrane element (2) and a filter cartridge (3), characterized in that: The inner wall of the housing (1) is connected to a STRO membrane element (2), and the inside of the STRO membrane element (2) is connected to a filter core column (3), and the inside of the filter core column (3) is docked with a central pull rod (4), the bottom end of the STRO membrane element (2) is connected to an upper water outlet joint (5) through an anti-impact baffle, and the top end of the STRO membrane element (2) is connected to a water inlet joint (6), and the outer wall of the bottom end of the central pull rod (4) is sleeved with a water production shaft sleeve (7).

2. A high pressure roll-type STRO membrane structure according to claim 1, characterized in that: Water production joints (8) are butt-jointed on both sides of the outer wall of the water production shaft sleeve (7), and membrane sheets (9) and spacer nets (10) are alternately arranged inside the STRO membrane element (2).

3. A high pressure roll-type membrane STRO membrane structure according to claim 2, characterized in that: The bottom end of the inner wall of the outer shell (1) is connected to a lower flange (11), and the top end of the inner wall of the outer shell (1) is connected to an upper flange (12).

4. A high pressure roll-type STRO membrane structure according to claim 3, characterized in that: The lower flange (11) and the upper flange (12) are both connected to lip-shaped sealing rings (13) inside, and the top end of the lower flange (11) is connected to a first O-ring (14) through an inner hole.

5. A high pressure roll-type STRO membrane structure according to claim 4, characterized in that: The bottom end of the lower flange (11) is connected to a second O-ring (15) via a mounting groove, and the bottom end of the water-producing shaft sleeve (7) is connected to a third O-ring (16) via a sealing groove.

6. A high pressure roll-type STRO membrane structure according to claim 1, characterized in that: One side of the outer wall of the water production shaft sleeve (7) is connected to a limiting seat (17), and the top end of the outer wall of the limiting seat (17) is connected to a limiting strip (18).

7. A high pressure roll-type STRO membrane structure according to claim 6, characterized in that: The limiting seat (17) is internally threadedly connected with a threaded pin (19).

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