CN210855542U - Mixed ultrafiltration membrane water treatment system - Google Patents
Mixed ultrafiltration membrane water treatment system Download PDFInfo
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- CN210855542U CN210855542U CN201921949724.5U CN201921949724U CN210855542U CN 210855542 U CN210855542 U CN 210855542U CN 201921949724 U CN201921949724 U CN 201921949724U CN 210855542 U CN210855542 U CN 210855542U
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Abstract
The utility model discloses a mixed ultrafiltration membrane water treatment system, which comprises a raw water tank, a pretreatment filter, an ultrafiltration membrane component system and a purified water tank; the ultrafiltration membrane component system comprises a plurality of internal pressure type ultrafiltration membrane components and a plurality of external pressure type ultrafiltration membrane components, wherein a first electromagnetic valve is arranged at a water inlet of each internal pressure type ultrafiltration membrane component, and a second electromagnetic valve is arranged at a water inlet of each external pressure type ultrafiltration membrane component. The internal pressure type ultrafiltration membrane component and the external pressure type ultrafiltration membrane component of the system can be independently or parallelly put into operation, the pollution probability of the ultrafiltration membrane component is reduced, the maintenance frequency of the membrane component is reduced, the service life is prolonged, the operation efficiency of a water treatment system is improved, and the operation cost is reduced.
Description
Technical Field
The utility model particularly relates to a mix ultrafiltration membrane water treatment system belongs to water treatment technical field.
Background
In recent years, the membrane separation technology is rapidly developed in the water treatment industry, the ultrafiltration membrane is a low-pressure membrane separation technology, the filtration process is a pure mechanical screening process which takes the pressure difference between two sides of the membrane as a driving force and has different retention rates of substances with different molecular weights in feed liquid according to the size of the pore diameter of the membrane. The application of the ultrafiltration technology is very wide, and the ultrafiltration technology is applied on different scales from common civil to high and new technology fields, namely household water purifiers and modern industrial production.
The current ultrafiltration membrane can be divided into an internal pressure type and an external pressure type according to different water flow directions in the working process. The internal pressure type stock solution firstly enters from the inner hole of the membrane wire, and permeates through the hollow fiber from inside to outside along the radial direction to become the permeate liquid under the driving of pressure difference. The inner hole of the membrane wire subjected to internal pressure type filtration is easy to block, but high-pressure large-flow water washing can be used, so that washing water flow and the membrane hole flow quickly in the tangential direction, pollutants adsorbed on the surface of the membrane hole can be washed away, and the water flux of the membrane is recovered; the external pressure type stock solution is driven by pressure difference to permeate through the hollow fiber membrane filaments from outside to inside along the radial direction to become permeate, and the trapped substances are collected outside the hollow fiber membrane filaments. The external pressure type ultrafiltration membrane is sealed in the membrane shell, membrane filaments are not easy to block, but the dead angle of water flow is large, and pollutants attached to the surface of the membrane cannot be removed by using a rapid direct flushing method, so that complete decontamination cannot be realized. Therefore, the internal pressure type ultrafiltration membrane and the external pressure type ultrafiltration membrane respectively have advantages and disadvantages and need to be selected according to specific water quality conditions. However, only one ultrafiltration membrane is usually considered in the design of the actual water treatment engineering, and the engineering is difficult to change once implemented. However, with the change of external conditions and environment, the quality of raw water to be treated will change differently, and if the process collocation of the subsequent ultrafiltration membrane is not reasonable, the membrane module will be polluted and blocked, and frequent maintenance, backwashing or replacement of the membrane module will be required, thereby reducing the operation efficiency of the water treatment equipment system and increasing the operation cost.
Disclosure of Invention
To the problem that prior art exists, the utility model provides a mix ultrafiltration membrane water treatment system, the working method of this system can change the operation mode of nimble adjustment system according to quality of water.
The technical scheme of the utility model is that: a mixed ultrafiltration membrane water treatment system comprises a raw water tank, a pretreatment filter, an ultrafiltration membrane component system and a purified water tank; the raw water tank is connected with the pretreatment filter through a first pipeline, the pretreatment filter is connected with the ultrafiltration membrane module system through a second pipeline, a purified water outlet of the ultrafiltration membrane module system is connected with the purified water tank through a third pipeline, and a concentrated water outlet of the ultrafiltration membrane module is connected with the raw water tank through a fourth pipeline; a water supply pump is arranged on the first pipeline; the ultrafiltration membrane component system comprises a plurality of internal pressure type ultrafiltration membrane components and a plurality of external pressure type ultrafiltration membrane components, wherein the plurality of internal pressure type ultrafiltration membrane components are operated in parallel, and the plurality of external pressure type ultrafiltration membrane components are operated in parallel; a first electromagnetic valve is arranged at the water inlet of the internal pressure type ultrafiltration membrane assemblies, and a second electromagnetic valve is arranged at the water inlet of the external pressure type ultrafiltration membrane assemblies.
Furthermore, a security filter is arranged on the second pipeline, and a first sampling device is arranged on a water outlet pipeline of the security filter.
Further, the first sampling device is connected with the first electromagnetic valve and the second electromagnetic valve.
Furthermore, a second sampling device is arranged on the third pipeline.
Further, the pretreatment filter is one of a quartz sand filter and an activated carbon filter or a combination of the two filters.
The utility model has the advantages that: the utility model discloses an ultrafiltration membrane subassembly adopts the mixed side by side operation of a plurality of internal pressure formula ultrafiltration membrane subassemblies and a plurality of external pressure type ultrafiltration membrane subassemblies, can have the operation mode of multiple flexibility, the quality of water data according to a sampling device test is different, can control opening or closing of first solenoid valve and second solenoid valve respectively, thereby make internal pressure formula and external pressure type ultrafiltration membrane subassembly alone or drop into the operation side by side, reduce the contaminated probability of ultrafiltration membrane subassembly, reduce the maintenance frequency of membrane subassembly, and prolonged service life, thereby improve water processing system's operating efficiency, and the running cost is reduced.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
The labels in the figure are: the system comprises a raw water tank 1, a water supply pump 2, a pretreatment filter 3, a security filter 4, a first sampling device 5, a first electromagnetic valve 6, a second electromagnetic valve 7, an ultrafiltration membrane component system 8, an internal pressure type ultrafiltration membrane component 8A, an external pressure type ultrafiltration membrane component 8B, a second sampling device 9, a purified water tank 10, a first pipeline 11, a second pipeline 31, a third pipeline 81 and a fourth pipeline 82.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings.
As shown in fig. 1, a mixed ultrafiltration membrane water treatment system comprises a raw water tank 1, a pretreatment filter 3, an ultrafiltration membrane module system 8 and a purified water tank 10; the raw water tank 1 and the pretreatment filter 3 are connected through a first pipeline 11, and a water supply pump 2 is arranged on the first pipeline 11; the pretreatment filter 3 is one of a quartz sand filter and an activated carbon filter or a combination of the two filters. The pretreatment filter 3 and the ultrafiltration membrane assembly system 8 are connected through a second pipeline 31, a security filter 4 is further arranged on the second pipeline 31, and a first sampling device 5 is further arranged on a water outlet pipeline of the security filter. A water inlet of the ultrafiltration membrane module system 8 is connected with the second pipeline 31, a purified water outlet of the ultrafiltration membrane module system 8 is connected with the purified water tank 10 through a third pipeline 81, a second sampling device 9 is further arranged on the third pipeline 81, and a concentrated water outlet of the ultrafiltration membrane module system 8 is connected with the raw water tank 1 through a fourth pipeline 82; the ultrafiltration membrane component system comprises a plurality of internal pressure type ultrafiltration membrane components 8A and a plurality of external pressure type ultrafiltration membrane components 8B, wherein the plurality of internal pressure type ultrafiltration membrane components 8A run in parallel, and the plurality of external pressure type ultrafiltration membrane components 8B run in parallel; a first electromagnetic valve 6 is arranged at the water inlet of the internal pressure type ultrafiltration membrane assemblies 8A, a second electromagnetic valve 7 is arranged at the water inlet of the external pressure type ultrafiltration membrane assemblies 8B, and the first electromagnetic valve 6 and the second electromagnetic valve 7 are electrically connected with the first sampling device.
The working principle and the process of the system are as follows: raw water to be treated is firstly conveyed and stored into a raw water tank 1, large-particle impurities in the raw water are pre-filtered through a pre-treatment filter 3 under the driving of a water supply pump 2, and then the raw water is conveyed into a ultrafiltration membrane component system 8 after passing through a cartridge filter 4; the safety filter is a precision filter, plays a role in protecting hollow fiber filaments in subsequent membrane components, and prevents large particles from blocking the membrane filaments; but the water passing through the cartridge filter still contains certain suspended matters, and the turbidity of the water is measured on line in real time through the first sampling device 5; when the water quality is better and the turbidity is lower, an internal pressure type membrane component is suitable for filtering, at the moment, the first electromagnetic valve 6 is opened, the second electromagnetic valve 7 is closed, and water flows through the internal pressure type ultrafiltration membrane component 8A; when the water quality is poor and the turbidity is high, the external pressure type membrane component is suitable for filtering, at the moment, the first electromagnetic valve 6 is closed, the second electromagnetic valve 7 is opened, and water flows through the internal pressure type ultrafiltration membrane component 8A; of course, the electromagnetic valves 6 and 7 can be opened simultaneously according to the load increase of the water yield, so that the internal pressure type membrane component and the external pressure type membrane component work simultaneously. Therefore, the working mode is flexible. The purified water filtered by the membrane module is gathered and enters a third pipeline 81, a second sampling device 9 is further arranged on the third pipeline 81 to measure the water quality, and the qualified purified water enters a purified water tank 10 to be stored for later use. The concentrated water discharged after being filtered by the membrane module enters the raw water tank 1 through the fourth pipeline 82, so that the recycling is realized.
Claims (5)
1. The utility model provides a mix ultrafiltration membrane water treatment system which characterized in that: comprises a raw water tank, a pretreatment filter, an ultrafiltration membrane component system and a purified water tank; the raw water tank is connected with the pretreatment filter through a first pipeline, the pretreatment filter is connected with the ultrafiltration membrane module system through a second pipeline, a purified water outlet of the ultrafiltration membrane module system is connected with the purified water tank through a third pipeline, and a concentrated water outlet of the ultrafiltration membrane module is connected with the raw water tank through a fourth pipeline; a water supply pump is arranged on the first pipeline; the ultrafiltration membrane component system comprises a plurality of internal pressure type ultrafiltration membrane components and a plurality of external pressure type ultrafiltration membrane components, wherein the plurality of internal pressure type ultrafiltration membrane components are operated in parallel, and the plurality of external pressure type ultrafiltration membrane components are operated in parallel; a first electromagnetic valve is arranged at the water inlet of the internal pressure type ultrafiltration membrane assemblies, and a second electromagnetic valve is arranged at the water inlet of the external pressure type ultrafiltration membrane assemblies.
2. The hybrid ultrafiltration membrane water treatment system of claim 1, wherein: the second pipeline is also provided with a security filter, and the water outlet pipeline of the security filter is also provided with a first sampling device.
3. A hybrid ultrafiltration membrane water treatment system as defined in claim 2 wherein: the first sampling device is electrically connected with the first electromagnetic valve and the second electromagnetic valve.
4. The hybrid ultrafiltration membrane water treatment system of claim 1, wherein: and a second sampling device is also arranged on the third pipeline.
5. The hybrid ultrafiltration membrane water treatment system of claim 1, wherein: the pretreatment filter is one of a quartz sand filter and an activated carbon filter or a combination of the two filters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921949724.5U CN210855542U (en) | 2019-11-13 | 2019-11-13 | Mixed ultrafiltration membrane water treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921949724.5U CN210855542U (en) | 2019-11-13 | 2019-11-13 | Mixed ultrafiltration membrane water treatment system |
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| CN210855542U true CN210855542U (en) | 2020-06-26 |
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| CN201921949724.5U Active CN210855542U (en) | 2019-11-13 | 2019-11-13 | Mixed ultrafiltration membrane water treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777219A (en) * | 2020-07-02 | 2020-10-16 | 无锡中科电气设备有限公司 | Ultrafiltration membrane water treatment control method and system |
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2019
- 2019-11-13 CN CN201921949724.5U patent/CN210855542U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777219A (en) * | 2020-07-02 | 2020-10-16 | 无锡中科电气设备有限公司 | Ultrafiltration membrane water treatment control method and system |
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