CN219333807U - Back flushing water distributor of internal pressure type flexible filter tube - Google Patents
Back flushing water distributor of internal pressure type flexible filter tube Download PDFInfo
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- CN219333807U CN219333807U CN202123022670.8U CN202123022670U CN219333807U CN 219333807 U CN219333807 U CN 219333807U CN 202123022670 U CN202123022670 U CN 202123022670U CN 219333807 U CN219333807 U CN 219333807U
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- water distributor
- membrane shell
- backwash
- backwashing
- filter tube
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model discloses a backwashing water distributor of an internal pressure type flexible filter tube, which comprises a membrane shell, wherein a flexible filter tube is arranged in the membrane shell, a backwashing water distributor is arranged on the outside of the membrane shell, the backwashing water distributor is arranged on the membrane shell, the backwashing water distributor is communicated with water distribution holes on the backwashing water distributor through an interface, external water flow enters the backwashing water distributor through the external backwashing water distributor and then is sprayed into the membrane shell through the water distribution holes, and the external and internal flexible filter tubes are evenly flushed. In the utility model, the back flushing port is arranged at the middle position of the membrane shell, the distance of the water flow entering the membrane shell and moving towards the end head is reduced, the transmembrane flow is more uniformly distributed along the axial direction, the water distribution holes are arranged to increase the flow velocity of external water flow, so that the water flow has better scouring force on the flexible filter tube, the flexible filter tube at the side opposite to the back flushing port is well cleaned, the problem that the membrane tube at the side opposite to the back flushing port is not cleaned or is not thoroughly cleaned by the traditional internal pressure type membrane system is solved, the cleaning effect is obvious, the practicability is strong, and the operability is strong.
Description
Technical Field
The utility model belongs to the technical field of flexible filter tubes, and particularly relates to a backwashing water distributor of an internal pressure type flexible filter tube.
Background
The microparticle adsorption filtration process requires a temporary attachment layer of adsorbent to be formed on the inner wall of the flexible filter tube during operation. As filtration proceeds, the adsorbent particles in this layer become saturated, and when all the adsorbent is saturated, a cleaning process is required to elute the saturated adsorbent layer and replace the new adsorbent.
In the specific process of cleaning, there is a backwashing step similar to the traditional membrane process, in which produced water or other clean water is conveyed into the membrane shell by a water pump, then passes through the wall of the flexible filter tube in the opposite direction of filtration, enters the interior of the flexible filter tube and is discharged from two ends, and the step causes the physical deformation collapse of the flexible filter tube to assist in improving the efficiency of the cleaning section.
Because of the need to achieve physical collapse of the flexible filter tube, a large instantaneous flow rate is required to achieve physical deformation, which is 10-50 times the flow rate of produced water during normal filtration.
However, the cleaning steps or hardware of the traditional internal pressure type membrane system, especially the micro-filtration and ultrafiltration system, have the following problems:
1) The first problem is the flow rate problem. Taking a standard 8-inch ultrafiltration membrane shell as an example, the diameter of the membrane shell is 200mm, and the diameter of the backwash port is 50mm. Typical ultrafiltration membranes use a flux of about 30-60LMH, with a backwash flow rate of 1-2.5 times the filtration flow rate. The flow rate of the backwash water entering the port is calculated according to the data, is about 0.25-0.5m/s and is far lower than the economic flow rate in the traditional sense, the flow rate does not cause waste of energy consumption when water enters, the moving speed in the membrane shell is lower, only about a few centimeters per second, the backwash water completely belongs to the laminar flow range, and the flow rate which causes the tube wall to collapse cannot be formed. The common flux of the corresponding flexible filter tube is 200-400LMH, and the backwash flux is increased by 25-50 times on the basis, so that the energy loss is excessive if the backwash water inlet port design of the traditional membrane shell is used;
2) The second problem is the location structure problem. The backwash ports of the traditional internal pressure type membrane system are generally arranged at two ends of the membrane shell, and the positions of the ports do not influence the distribution of flow patterns in the pipe because of the lower flow rate of liquid in the membrane shell. However, for the flow rates required for a flexible filter tube, if the port is at one end, the flow rate experienced by the distal filter tube and the proximal and opposite side of the filter tube will be significantly different from the flow rate experienced at the inlet, affecting the cleaning effect.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art and provide a backwashing water distributor of an internal pressure type flexible filter tube.
In order to achieve the above purpose and achieve the above technical effects, the utility model adopts the following technical scheme:
the utility model provides an internal pressure type flexible filter tube's backwash water distributor, includes the membrane shell, be equipped with flexible filter tube in the membrane shell, the outside detachable of membrane shell is provided with a backwash port, the inside or outside of membrane shell is provided with a plurality of backwash water distributor, the interface of all backwash water distributors all is linked together with the backwash port, every backwash water distributor inside wall all sets up a plurality of water distribution hole along the circumferencial direction, the backwash port passes through the interface and communicates with the water distribution hole on every backwash water distributor, outside rivers get into every backwash water distributor through outside backwash port, the water distribution hole on the rethread backwash water distributor sprays into in the membrane shell, rivers flow along membrane shell axial direction both ends after getting into the membrane shell, evenly wash away peripheral and inside flexible filter tube.
Furthermore, the backwashing water distributors are arranged in the membrane shell, a plurality of backwashing water distributors are arranged in parallel, the backwashing water distributors are made of flexible materials or rigid materials and can deform, and an interface of each backwashing water distributor is in threaded connection with a backwashing port on the membrane shell or in sealing connection with an O-shaped ring.
Furthermore, the backwashing water distributors are arranged on the outer side of the membrane shell, a plurality of backwashing water distributors are arranged in parallel, the backwashing water distributors are made of rigid materials, an opening is reserved on the membrane shell and used for connecting the backwashing water distributors with backwashing ports, and the membrane shell and the backwashing water distributors are sealed in a flange clamp and sealing ring mode.
Further, the backwash port is arranged at the central position of one side outside the membrane shell.
Furthermore, the backwashing water distributor is in a circular ring shape, the backwashing water distributor is in a hollow structure, and the water distribution holes are uniformly arranged on one surface of the backwashing water distributor, which is close to the internal pressure type flexible filter tube, at equal intervals.
Further, the thickness of the backwashing water distributor is 2-10mm, and the height of the backwashing water distributor is 50-100mm.
Further, the diameter of the water distribution holes is 0.1-10mm.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model discloses a backwashing water distributor of an internal pressure type flexible filter tube, which comprises a membrane shell, wherein a flexible filter tube is arranged in the membrane shell, a backwashing port is detachably arranged outside the membrane shell, a plurality of backwashing water distributors are arranged inside or outside the membrane shell, interfaces of all backwashing water distributors are communicated with the backwashing port, a plurality of water distribution holes are formed in the inner side wall of each backwashing water distributor along the circumferential direction, the backwashing port is communicated with the water distribution holes on each backwashing water distributor through the interfaces, external water flow enters each backwashing water distributor through the external backwashing port and then is sprayed into the membrane shell through the water distribution holes on the backwashing water distributors, a part of water flow flows along the axial direction of the membrane shell and then enters the flexible filter tube, and a part of water flow penetrates through the wall of the flexible filter tube and flows along the axial direction in the flexible filter tube to flush the periphery and the internal flexible filter tube. The backwashing water distributor of the internal pressure type flexible filter tube is designed at the middle position of the membrane shell, so that the distance of movement of the water flow to the end head after entering the membrane shell is effectively reduced, the transmembrane flow is more uniformly distributed along the axial direction, the water distribution holes are arranged to increase the flow velocity of external water flow, so that the water flow has better scouring force on the flexible filter tube, and meanwhile, the flexible filter tube at the side opposite to the backwashing port is well cleaned, the problem that the membrane tube at the side opposite to the backwashing port is not cleaned or is not thoroughly cleaned by the existing internal pressure type membrane system is solved, the integral structure is simple, a plurality of backwashing water distributors can be selectively arranged according to actual requirements, the practicability is strong, the cleaning effect is obvious, the operability is strong, and the internal pressure type flexible filter tube is suitable for industrialized popularization and use.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a perspective view of a backwash water distributor of the present utility model;
FIG. 3 is a water flow pattern in a backwash water distributor of the present utility model;
fig. 4-5 are perspective views of example 1 of the present utility model.
Detailed Description
The present utility model is described in detail below with reference to the drawings so that advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
As shown in figures 1-5, the backwashing water distributor of the internal pressure type flexible filter tube comprises a membrane shell 1, wherein a flexible filter tube 2 is arranged in the membrane shell 1, a backwashing port 3 is detachably arranged outside the membrane shell 1, the backwashing port 3 is arranged at the middle position of the membrane shell 1, the distance of movement of water flow into the membrane shell 1 to the end can be effectively reduced, the transmembrane flow is more uniformly distributed along the axial direction, a plurality of backwashing water distributors 4 are connected in parallel inside or outside the membrane shell 1, the interfaces of all backwashing water distributors 4 are communicated with the backwashing port 3, a plurality of water distribution holes 5 are formed in the inner side wall of each backwashing water distributor 4 along the circumferential direction, the backwashing port 3 is communicated with the water distribution holes 5 on each backwashing water distributor 4 through the interfaces, external water flow (backwashing water) enters each backwashing water distributor 4 through the external backwashing port 3, all water distribution holes 5 on the backwashing water distributors 4 are sprayed outwards into the membrane shell 1, water flow flows towards the two ends along the axial direction of the membrane shell 1, the uniform outer side and the inside flexible filter tube 2 are well cleaned by the water distribution holes 5 on the backwashing water distributors, and the water flow rate on the back surface of the membrane 4 is well-washed by the water distributors 2, and the problem that the water flow on one side of the membrane is not completely cleaned by the backwashing water distributor is well is solved.
The backwashing water distributor 4 is in a ring shape, the backwashing water distributor 4 is in a hollow structure, water distribution holes 5 are uniformly arranged on one surface of the backwashing water distributor 4 close to the internal pressure type flexible filter tube 2 at equal intervals, the thickness of the backwashing water distributor 4 is 2-10mm, and the height of the backwashing water distributor 4 is 50-100mm; the diameter of the water distribution hole 5 is 0.1-10mm.
Example 1
As shown in figures 1-3, a backwash water distributor of internal pressure type flexible filter tube comprises a membrane shell 1, wherein a flexible filter tube 2 is arranged in the membrane shell 1, a backwash port 3 is detachably arranged outside the membrane shell 1, the backwash port 3 is arranged at the middle position of the membrane shell 1, the distance of movement of water flow into the membrane shell 1 to the ends can be effectively reduced, the transmembrane flow is more uniformly distributed along the axial direction, a backwash water distributor 4 is arranged inside the membrane shell 1, an interface of the backwash water distributor 4 is communicated with the backwash port 3, a plurality of water distribution holes 5 are uniformly arranged on the inner side wall of the backwash water distributor 4 along the circumferential direction at equal intervals, the backwash port 3 is communicated with the water distribution holes 5 on each backwash water distributor 4 through the interface, external water (backwash water) enters the backwash water distributor 4 through the external backwash port 3, the water distribution holes 5 on the backwash water distributor 4 are sprayed into the membrane shell 1, the water flow enters the membrane shell 1 and flows towards the two ends along the axial direction of the membrane shell 1, the uniform periphery and the inner flexible filter tube 2 are uniformly distributed, the water distribution holes 5 on the backwash water distributor 4 can be increased, the water flow rate on the backwash water distributor 4 can not be well clean the backwash water flow to the backwash water distributor 3, and the problem that the backwash water is not completely cleaned by the backwash water distributor 2 is solved, and the problem that the backwash water is well can not cleaned to the existing filter tube is completely is solved.
The backwash port 3 is arranged outside the membrane shell 1 in a threaded connection mode, so that the subsequent disassembly, cleaning and replacement can be facilitated, and because the backwash water distributor 4 is positioned inside the membrane shell 1, the interface of the backwash water distributor 4 is in threaded connection with the backwash port 3 on the membrane shell 1 or is in sealing connection by an O-shaped ring, so that the backwash water distributor 4 is made of flexible materials or rigid materials and can be deformed, after the backwash water distributor 4 is deformed, the backwash water distributor is placed inside the membrane shell 1, the interface is in sealing connection with the backwash port 3 and then is unfolded, and the interface can be sleeved inside or outside the backwash port 3.
As a more specific implementation mode, a plurality of backwashing water distributors 4 can be selectively connected in parallel inside or outside the membrane shell 1 according to actual requirements, so that backwashing cleaning effect is further improved. The backwash water distributors 4 can be connected in parallel by PVC pipes or hoses made of other materials and then connected into a backwash pump through a unique backwash port 3.
The backwashing water distributor 4 is in a ring shape, the backwashing water distributor 4 is in a hollow structure, water distribution holes 5 are uniformly arranged on one surface of the backwashing water distributor 4 close to the internal pressure type flexible filter tube 2 at equal intervals, the thickness of the backwashing water distributor 4 is 2-10mm, and the height of the backwashing water distributor 4 is 50-100mm; the diameter of the water distribution hole 5 is 0.1-10mm.
Example 2
As shown in fig. 1-5, the difference between this embodiment and embodiment 1 is that, in this embodiment, a plurality of backwash water distributors 4 are installed on the outer side of the membrane shell 1 according to the process requirement and the use environment, at this time, the backwash water distributors 4 are made of rigid materials, and an opening is reserved on the membrane shell 1, so that the backwash water distributors 4 are connected with the backwash port 3 through a water pipe 6, and the membrane shell 1 and the backwash water distributors 4 are sealed by adopting a flange clip and a sealing ring.
Example 1 was followed.
Parts or structures not specifically described are only required to be in the prior art or the existing product, and are not described herein.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.
Claims (7)
1. The utility model provides a backwash water distributor of interior pressure type flexible filter tube, its characterized in that includes the membrane shell, flexible filter tube is equipped with in the membrane shell, the outside detachable of membrane shell is provided with a backwash port, inside or outside of membrane shell is provided with a plurality of backwash water distributor, the interface of all backwash water distributors all is linked together with the backwash port, every backwash water distributor inside wall all sets up a plurality of water distribution hole along the circumferencial direction, the backwash port passes through the interface and communicates with the water distribution hole on every backwash water distributor, outside rivers get into every backwash water distributor through outside backwash port, the water distribution hole on the rethread backwash water distributor sprays into the membrane shell in, rivers flow along membrane shell axial direction both ends after getting into the membrane shell, evenly wash away peripheral and inside flexible filter tube.
2. The backwashing water distributor of the internal pressure type flexible filter tube according to claim 1, wherein the backwashing water distributors are positioned inside the membrane shell, a plurality of backwashing water distributors are arranged in parallel, the backwashing water distributors can deform, and an interface of each backwashing water distributor is in threaded connection with a backwashing port on the membrane shell or in sealing connection by means of an O-shaped ring.
3. The backwashing water distributor of the internal pressure type flexible filter tube according to claim 1, wherein the backwashing water distributors are arranged on the outer side of a membrane shell, a plurality of backwashing water distributors are arranged in parallel, the backwashing water distributors are made of rigid materials, an opening is reserved on the membrane shell and used for connecting the backwashing water distributors with backwashing ports, and the membrane shell and the backwashing water distributors are sealed in a flange clamp and sealing ring mode.
4. A backwash water distributor of an internal pressure type flexible filter tube according to any one of claims 1 to 3 wherein said backwash port is provided at a central position on one side of the outside of the membrane shell.
5. A backwash water distributor of an internal pressure type flexible filter tube according to any one of claims 1 to 3, wherein the backwash water distributor is in a circular ring shape, the backwash water distributor is in a hollow structure, and the water distribution holes are uniformly arranged on one surface of the backwash water distributor close to the internal pressure type flexible filter tube at equal intervals.
6. The backwash water distributor of an internal pressure type flexible filter tube according to claim 5, wherein the backwash water distributor has a thickness of 2-10mm and a height of 50-100mm.
7. The backwash water distributor of an internal pressure type flexible filter tube as claimed in claim 5, wherein the diameter of the water distribution holes is 0.1-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123022670.8U CN219333807U (en) | 2021-12-03 | 2021-12-03 | Back flushing water distributor of internal pressure type flexible filter tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123022670.8U CN219333807U (en) | 2021-12-03 | 2021-12-03 | Back flushing water distributor of internal pressure type flexible filter tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219333807U true CN219333807U (en) | 2023-07-14 |
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ID=87078088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123022670.8U Active CN219333807U (en) | 2021-12-03 | 2021-12-03 | Back flushing water distributor of internal pressure type flexible filter tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219333807U (en) |
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2021
- 2021-12-03 CN CN202123022670.8U patent/CN219333807U/en active Active
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