CN219518403U - Conversion joint and roll-type membrane element connected by conversion joint and capable of cleaning water producing side - Google Patents
Conversion joint and roll-type membrane element connected by conversion joint and capable of cleaning water producing side Download PDFInfo
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- CN219518403U CN219518403U CN202320478665.8U CN202320478665U CN219518403U CN 219518403 U CN219518403 U CN 219518403U CN 202320478665 U CN202320478665 U CN 202320478665U CN 219518403 U CN219518403 U CN 219518403U
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Abstract
The utility model provides a conversion joint and a coiled membrane element connected by the conversion joint and capable of cleaning a water producing side, wherein the conversion joint comprises a hollow pipe (300) and a water stop plate (301), an annular blocking piece (304) is arranged on the inner wall of the end part of the hollow pipe (300), and a core blocking piece (305) is arranged on the water stop plate (301) at the opposite end to realize the conversion of the water path direction. Furthermore, the coiled membrane element central tube (1) and the inner tube (4) which can be cleaned at the water producing side are utilized to realize double-way water inlet and double-way water outlet, and the connection mode is simplified. The membrane bag structure is designed, so that cleaning liquid enters the membrane bag to be sufficiently cleaned, the service life of the membrane bag is prolonged, and the cost of water treatment is reduced.
Description
Technical Field
The utility model belongs to the technical field of water treatment, and particularly relates to a real conversion joint and a coiled membrane element connected by the conversion joint and capable of cleaning a water producing side.
Background
The membrane separation technology is a method for separating components in liquid by taking energy difference at two sides of a membrane as driving force and depending on the selectivity of the membrane, and is widely applied to the fields of gas separation, liquid separation and the like. Along with the development of membrane technology, membrane method water treatment technology is increasingly applied in the field of environmental protection, and can be divided into microfiltration Membranes (MF), ultrafiltration membranes (UF), nanofiltration membranes (NF), reverse osmosis membranes (RO) and the like according to pore sizes, and can be further divided into electric drive membranes, pressure drive membranes, concentration drive membranes and the like according to different driving forces in membrane separation processes, and can be further divided into sheets and tubes according to different shapes of the membranes. The coiled film is used as one of the sheet films, has the advantages of good sealing property, high filling density, low cost, high pressure resistance and the like, and plays a great role in water treatment application.
The existing coiled membrane is provided with a central tube, the side wall of the central tube is provided with a water inlet hole, so that water produced by the membrane is collected in the pipeline and then discharged from the end of the pipeline. In such a rolled membrane structure, because the water purifying side of the membrane is a closed membrane bag, contaminants such as organic matters, high molecular contaminants, organic matter small molecules, monovalent salt, organic matter small molecules, reverse osmosis small molecular organic matters and the like which permeate through the membrane, such as micro-filtration membrane permeate, micro-filtration permeate, nano-filtration permeate, and the like, are always retained in the membrane bag, so that the membrane is polluted, and the flux is reduced.
In addition, the central tube can only go out water, can not intake water, can not realize the inside washing of membrane bag, and the link mode of water ingress and egress is comparatively troublesome. When the membrane is polluted, water washing, gas washing, acid-base and organic cleaning agent can be adopted only outside the membrane bag. Particularly, in the separation process of ultrafiltration and microfiltration treatment biological fermentation liquor and biomass materials, a large amount of low molecular organic matters are retained in the membrane bags. Thus, the use flux of the membrane is reduced, the output efficiency is reduced, the service life of the membrane is shortened, and the membrane separation cost is increased.
Therefore, it is necessary to design a roll-type membrane element capable of cleaning the water producing side, which can clean the inside of the membrane bag, maintain regularly, and maintain the original performance of the roll-type membrane so as to enable the roll-type membrane to work normally.
Disclosure of Invention
In order to solve the problems, the utility model provides a conversion joint, wherein an annular blocking piece and a core blocking piece are arranged in the conversion joint, so that the conversion of waterways can be realized. Which is arranged between the roll-type membrane elements on the cleanable water-producing side. The coiled membrane element capable of cleaning the water producing side is provided with a central tube and an inner tube, and a membrane bag structure is designed, so that cleaning liquid can enter the membrane bag for full cleaning, waterway switching of the central tube and the inner tube is realized through a switching joint, and two-way water inlet and two-way water outlet are realized. And the design makes the water openings of center tube and inner tube be the setting of enlarging, forms the opening of enlarging to widen the water yield, make the pollutant take out more easily, avoid the magazine to pile up the jam. The roll-type membrane element capable of cleaning the water producing side not only realizes the internal cleaning of the membrane bag, but also increases the water path setting and simplifies the connection mode.
The utility model aims to provide a conversion joint which comprises a hollow pipe and a water stop plate, wherein the water stop plate is arranged in the middle of the interior of the hollow pipe to form an upper through pipe and a lower through pipe.
The one end of going up the siphunculus sets up annular and blocks up the piece, and the other end sets up the core and blocks up the piece, the one end that the siphunculus set up annular corresponding to going up the siphunculus down sets up the core and blocks up the piece, corresponds to going up the siphunculus and set up core and block up one end and set up annular and block up the piece.
The utility model also aims to provide a coiled membrane element capable of cleaning the water producing side, wherein the coiled membrane comprises a central tube and a membrane bag. An inner tube is arranged inside the central tube. A conversion node is arranged between the coiled membrane elements on the cleanable water producing side.
The coiled membrane element capable of cleaning the water producing side comprises two sections of central pipes, one end of each central pipe is a water through hole, and the other end of each central pipe is a closed end. The pipe wall of the central pipe is provided with water holes which are arranged in a straight line.
The membrane bag is characterized in that after the centers of the membranes are folded in half, two sides of the membrane bag are sealed, the openings of the bottom edges of the membrane bag are aligned to the water passing holes, and the two membranes at the openings are respectively fixed and sealed on the outer walls of the central tubes at the two sides of the water passing holes. The bottom edge opening of the membrane bag covers all water passing holes of the two sections of central tubes, so that liquid in the central tubes and the membrane bag can flow through the water passing holes.
In the utility model, the closed ends of the two sections of central pipes are connected and not communicated. The inner pipe penetrates through the two sections of central pipes, and the inner pipe water through hole penetrates out of the water through hole ends of the two sections of central pipes.
The conversion section and the roll-type membrane element capable of cleaning the water producing side have the following beneficial effects:
(1) The conversion joint provided by the utility model is reasonable in design of the annular blocking piece and the core blocking piece, and water is distributed and a waterway is changed. The conversion joint is arranged between the coiled membrane elements on the cleanable water producing side to form an annular waterway and a central waterway, so that a four-channel waterway of the coiled membrane elements on the cleanable water producing side is realized.
(2) The roll-type membrane element capable of cleaning the water producing side enables cleaning liquid to enter the membrane bag to clean through the connection mode of the membrane bag and the central tube, residues accumulated in the membrane bag are brought out, the performance of the membrane bag is kept, the service life of the membrane bag is prolonged, and the water treatment cost is reduced.
(3) According to the utility model, through designing the central pipe and the inner pipe and matching with the conversion section to realize double waterways, two water inlets and two water outlets can be simultaneously carried out, the connection mode of the coiled membrane element capable of cleaning the water producing side is simplified, and the treatment capacity is improved.
(4) The utility model designs the amplifying port, improves the water yield, washes out impurities remained in the membrane bag or the pipeline as much as possible, and avoids the problems of waterway blockage and the like.
Drawings
FIG. 1 is a schematic view showing a structure of a conversion node according to the present utility model
FIG. 2 is a schematic diagram showing the structure of two roll-type membrane elements of the cleanable water-producing side of the present utility model connected in series;
fig. 3 shows a schematic partial structure of a roll-type membrane element of the present utility model which can be cleaned on the water-producing side.
Description of the reference numerals
1-a central tube;
2-film bags;
3-switching section;
4-an inner tube;
101-water passing holes;
201-bonding lines;
202-folding edges;
203-a water outlet;
301-a water stop plate;
302-feeding a pipe;
303-a lower through pipe;
304-annular plugs;
305-core plug.
Detailed Description
The features and advantages of the present utility model will become more apparent and evident from the following detailed description of the utility model.
The conversion section provided by the utility model can be used for realizing conversion of inner and outer waterways of the roll-type membrane element on the cleanable water producing side between the roll-type membrane elements on the cleanable water producing side, so that the roll-type membrane element on the cleanable water producing side can simultaneously carry out two-way water inlet and two-way water outlet.
The utility model provides a conversion joint, which comprises a hollow pipe 300 and a water stop plate 301, wherein the water stop plate 301 is arranged in the middle of the inside of the hollow pipe 300 to form an upper through pipe 302 and a lower through pipe 303.
One end of the upper through pipe 302 is provided with an annular blocking piece 304, the other end of the upper through pipe 302 is provided with a core blocking piece 305, one end of the lower through pipe 303, which corresponds to the upper through pipe 302, is provided with the annular blocking piece 304, and one end, which corresponds to the upper through pipe 302, of the core blocking piece 305 is provided with the annular blocking piece 304, as shown in fig. 1.
The annular blocking piece 304 is arranged on the inner wall of the end part of the hollow pipe 300, is semi-annular, and extends to the water stop plate 301 from two ends of the annular circumference, and is in sealing arrangement with the inner wall of the hollow pipe 300 and the water stop plate 301.
The core plugging member 305 is semi-cylindrical, and is disposed on the water stop plate 301 at the end opposite to the annular plugging member 304, and the outer sidewall of the core plugging member 305 and the inner wall of the hollow tube 300 form an annular pipeline.
The thickness of the annular blocking piece 304 is larger than that of the annular waterway blocked by the annular blocking piece; the end face radius of the core stopper 305 is larger than the inner diameter of the inner tube 4 that it is closing off. As particularly shown in fig. 2.
The utility model also provides a roll-type membrane element capable of cleaning the water producing side, which comprises a central tube 1 and a membrane bag 2. An inner tube 4 is arranged in the central tube 1, and the inner tube 4 and the central tube 1 are coaxially arranged. A conversion joint 3 is arranged between the roll-type membrane elements on the cleanable water producing side.
The coiled membrane element capable of cleaning the water producing side comprises two sections of central pipes 1, one end of each central pipe 1 is a water through hole, and the other end of each central pipe is a closed end. The pipe wall of the central pipe 1 is provided with water holes 101 which are arranged in a straight line.
The membrane bag 2 is formed by folding the centers of the membranes in half, sealing the two sides, aligning the bottom edge opening with the water passing hole 101, and respectively fixing and sealing the two membranes at the opening on the outer walls of the central tube 1 at the two sides of the water passing hole 101. The bottom edge opening of the membrane bag 2 covers all water passing holes 101 of the two sections of central pipes 1, so that the liquid in the central pipes 1 and the membrane bag 2 can flow through the water passing holes 101.
The membrane material of the membrane bag 2 includes, but is not limited to, membrane types such as a membrane selected from the group consisting of a microfiltration membrane, an ultrafiltration membrane, a reverse osmosis membrane, a nanofiltration membrane, a diffusion dialysis membrane, an electrodialysis membrane, a gas separation membrane, and the like.
In the utility model, the closed ends of the two sections of central pipes 1 are connected and not communicated. The inner tube 4 penetrates through the two sections of central tubes 1, and the water passing port of the inner tube 4 penetrates out of the water passing port ends of the two sections of central tubes 1, and the specific schematic diagram is shown in fig. 2.
The inside of the membrane bag 2 is bonded linearly to form a bonding line 201, the bonding line extends upwards from the position of the bottom edge opening corresponding to the closed end of the central tube 1 or the conversion joint 3 to the position close to the pair of folded edges 202, and a water outlet 203 is reserved close to the pair of folded edges 202, so that liquid enters one side of the inside of the membrane bag 2 from the bottom through the water passing hole 101 of the first section of central tube 1, then enters the other side of the membrane bag 2 through the water outlet 203, and flows out of the membrane bag 2 through the water passing hole 101 of the second section of central tube 1. A specific schematic diagram is shown in fig. 2. In use, the membrane bag 2 is wound around the central tube 1.
A changeover joint 3 is arranged between the two coiled membrane elements on the cleanable water producing side, so that an upper through pipe 302 of the changeover joint 3 is aligned with the upper half ports of the central pipe 1 and the inner pipe 4, and a lower through pipe 303 is aligned with the lower half ports of the central pipe 1 and the inner pipe 4.
The core plugging piece 305 at the port of the upper through pipe 302 is aligned with the upper half area of the inner pipe 4 of the coiled membrane element at the previous cleanable water producing side to form a plug, and at the moment, the outer circular side wall of the core plugging piece 305 and the inner wall of the hollow pipe of the conversion section 3 form an annular pipeline aligned with the upper half area of an annular waterway formed by the central pipe 1 and the inner pipe 4; an annular blocking piece 304 at the other port of the upper through pipe 302 is aligned with the upper half area of an annular waterway formed by the central pipe 1 and the inner pipe 4 of the coiled membrane element on the water producing side of the latter cleanable water producing side to form a blocking. So that the annular waterway formed by the central tube 1 and the inner tube 4 of the former roll-type membrane element capable of cleaning the water producing side is communicated with the inner tube 4 of the latter roll-type membrane element capable of cleaning the water producing side.
The annular blocking piece 304 at the port of the lower through pipe 303 is aligned with the lower half area of the annular waterway formed by the central pipe 1 and the inner pipe 4 of the former coiled membrane element capable of cleaning the water producing side to form a blocking, and at the moment, the waterway between the annular blocking piece 304 and the water stop plate 301 is aligned with the lower half area of the inner pipe 4; the core plugging member 305 at the other port of the down pipe 303 is aligned with the lower half area of the inner pipe 4 of the coiled membrane element at the later cleanable water producing side to form a plug. So that the inner tube 4 of the former washable water producing side coiled membrane element is communicated with the annular waterway formed by the central tube 1 and the inner tube 4 of the latter washable water producing side coiled membrane element.
Preferably, the water ports of the central tube 1 and the inner tube 4 of the roll-type membrane element on the cleanable water producing side are enlarged to form enlarged openings so as to widen the water yield, so that pollutants are more easily carried out, and the accumulation and blockage of magazines are avoided.
In the utility model, first water enters from an annular waterway formed by the coiled membrane element central tube 1 and the inner tube 4 at the front cleanable water producing side, enters the membrane bag 2 through the water passing hole 101 of the central tube 1 at the first section, then exits from the water passing hole 101 of the central tube 1 at the second section, enters the coiled membrane element inner tube 4 at the rear cleanable water producing side through the conversion joint 3, and exits or enters the coiled membrane element at the next cleanable water producing side to form first water outlet.
In one embodiment of the utility model, the second water enters from the annular waterway formed by the central tube 1 and the inner tube 4 of the coiled membrane element on the later cleanable water producing side, enters the membrane bag 2 through the water passing hole 101 of the central tube 1, then exits from the water passing hole 101 of the other central tube 1, enters the inner tube 4 of the coiled membrane element on the former cleanable water producing side through the conversion joint 3, and forms the second water outlet.
In another embodiment, the second inflow water enters from the inner tube 4 of the former washable water producing side coiled membrane element, enters an annular waterway formed by the latter washable water producing side coiled membrane element central tube 1 and the inner tube 4 through the conversion joint 3, enters the membrane bag 2 through the water passing hole 101 of the latter washable water producing side coiled membrane element central tube 1, and then exits through the annular waterway formed by the central tube 1 and the inner tube 4 to form the second outflow water.
Therefore, through the roll-type membrane element capable of cleaning the water producing side, the inside cleaning of the membrane bag 2 can be realized, and the accumulated pollutants in the membrane bag 2 are washed out, so that the performance of the roll-type membrane element capable of cleaning the water producing side is maintained, and the service life of the roll-type membrane element is prolonged.
The central tube and the inner tube are designed for the coiled membrane element on the cleanable water producing side, and the two-way water inlet and the two-way water outlet are realized through the conversion section, so that the connection mode of the coiled membrane element on the cleanable water producing side is simplified, and the treatment capacity is improved. And moreover, the cleaning liquid in the central tube can enter the membrane bag for full cleaning, so that the service life of the membrane bag is prolonged, and the cost of water treatment is reduced.
The utility model has been described in detail in connection with the embodiments and the drawings, but the description is not to be construed as limiting the utility model. It will be understood by those skilled in the art that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present utility model and its embodiments without departing from the spirit and scope of the present utility model, and these fall within the scope of the present utility model. The scope of the utility model is defined by the appended claims.
Claims (10)
1. A conversion joint comprising a hollow tube (300) and a water barrier (301), characterized in that,
a water stop plate (301) is arranged in the middle of the inside of the hollow pipe (300) to form an upper through pipe (302) and a lower through pipe (303);
one end of the upper through pipe (302) is provided with an annular blocking piece (304), the other end of the upper through pipe is provided with a core blocking piece (305), one end of the lower through pipe (303) corresponding to the upper through pipe (302) provided with the annular blocking piece (304) is provided with the core blocking piece (305), and one end of the lower through pipe (303) corresponding to the upper through pipe (302) provided with the core blocking piece (305) is provided with the annular blocking piece (304).
2. The conversion joint according to claim 1, wherein the annular blocking member (304) is disposed on an inner wall of an end portion of the hollow tube (300) and has a semi-annular shape, and two ends of an annular circumference extend to the water stop plate (301) and are disposed in a sealing manner with the inner wall of the hollow tube (300) and the water stop plate (301).
3. The conversion joint according to claim 1, wherein the core block (305) is semi-cylindrical and is arranged on a water stop plate (301) at the end opposite to the annular block (304), and the outer circular side wall of the core block (305) and the inner wall of the hollow tube (300) form an annular pipeline.
4. The conversion joint according to claim 1, characterized in that the thickness of the annular plug (304) is greater than the thickness of the annular waterway it plugs; the end surface radius of the core plugging piece (305) is larger than the inner diameter of the inner pipe (4) plugged by the core plugging piece.
5. A roll-type membrane element for a washable water producing side connected by a changeover joint according to one of claims 1 to 4, which comprises a central tube (1) and a membrane bag (2), characterized in that,
an inner pipe (4) is arranged inside the central pipe (1), and water passing holes (101) which are arranged in a straight line are formed in the pipe wall of the central pipe (1); a conversion joint (3) is arranged between the coiled film elements on the cleanable water producing side;
two diaphragms at the opening of the diaphragm bag (2) are respectively fixed and sealed on the outer walls of the central pipes (1) at the two sides of the water passing holes (101), and the bottom opening of the diaphragm bag (2) covers all the water passing holes (101) of the two sections of central pipes (1);
the closed ends of the two sections of central pipes (1) are connected and not communicated, the inner pipe (4) penetrates through the two sections of central pipes (1), and the water inlet of the inner pipe (4) penetrates out of the water inlet ends of the two sections of central pipes (1);
the upper through pipe (302) of the conversion joint (3) is aligned with the upper half ports of the central pipe (1) and the inner pipe (4), and the lower through pipe (303) is aligned with the lower half ports of the central pipe (1) and the inner pipe (4).
6. The roll film element for cleaning a water producing side according to claim 5,
the inner tube (4) and the central tube (1) are coaxially arranged;
the coiled membrane element capable of cleaning the water producing side comprises two sections of central pipes (1), one end of each central pipe (1) is a water through hole, and the other end of each central pipe is a closed end.
7. The roll-type membrane element capable of cleaning a water producing side according to claim 5, wherein the membrane bag (2) is formed by folding the center of a membrane in half, sealing two sides, and aligning a bottom edge opening with the water passing hole (101).
8. A roll-type membrane element on the cleanable water producing side according to claim 5, characterized in that the inside of the membrane bag (2) is line-bonded to form a bonding line (201) extending from the bottom opening corresponding to the closed end of the central tube (1) or the changeover node (3) up to adjacent the pair of folds (202), leaving a water outlet (203) adjacent the pair of folds (202).
9. The roll film element for cleaning a water producing side according to claim 5,
the core blocking piece (305) at the port of the upper through pipe (302) is aligned with the upper half area of the inner pipe (4) of the former coiled membrane element capable of cleaning the water producing side to form a blocking, and at the moment, the outer circular side wall of the core blocking piece (305) and the inner wall of the hollow pipe of the conversion joint (3) form an annular pipeline to be aligned with the upper half area of an annular waterway formed by the central pipe (1) and the inner pipe (4);
the annular plugging piece (304) at the other port of the upper through pipe (302) is aligned with the upper half area of an annular waterway formed by the central pipe (1) and the inner pipe (4) of the coiled membrane element at the later cleanable water producing side, so that the annular waterway formed by the central pipe (1) and the inner pipe (4) of the coiled membrane element at the former cleanable water producing side is communicated with the inner pipe (4) of the coiled membrane element at the later cleanable water producing side.
10. The roll film element for cleaning a water producing side according to claim 5,
an annular blocking piece (304) at the port of the lower through pipe (303) is aligned with the lower half area of an annular waterway formed by the central pipe (1) and the inner pipe (4) of the former coiled membrane element capable of cleaning the water producing side, so that a blocking is formed, and at the moment, the waterway between the annular blocking piece (304) and the water stop plate (301) is aligned with the lower half area of the inner pipe (4);
the core blocking piece (305) of the other port of the lower through pipe (303) is aligned with the lower half area of the inner pipe (4) of the coiled film element at the later cleanable water producing side to form a blocking, so that the inner pipe (4) of the coiled film element at the former cleanable water producing side is communicated with an annular waterway formed by the central pipe (1) of the coiled film element at the later cleanable water producing side and the inner pipe (4);
the membrane material of the membrane bag (2) is selected from a microfiltration membrane, an ultrafiltration membrane, a reverse osmosis membrane, a nanofiltration membrane, a diffusion dialysis membrane, an electrodialysis membrane or a gas separation membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320478665.8U CN219518403U (en) | 2023-03-14 | 2023-03-14 | Conversion joint and roll-type membrane element connected by conversion joint and capable of cleaning water producing side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320478665.8U CN219518403U (en) | 2023-03-14 | 2023-03-14 | Conversion joint and roll-type membrane element connected by conversion joint and capable of cleaning water producing side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219518403U true CN219518403U (en) | 2023-08-15 |
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ID=87629923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320478665.8U Active CN219518403U (en) | 2023-03-14 | 2023-03-14 | Conversion joint and roll-type membrane element connected by conversion joint and capable of cleaning water producing side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219518403U (en) |
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2023
- 2023-03-14 CN CN202320478665.8U patent/CN219518403U/en active Active
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