CN217312327U - Nanofiltration membrane separation system - Google Patents
Nanofiltration membrane separation system Download PDFInfo
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- CN217312327U CN217312327U CN202220595806.XU CN202220595806U CN217312327U CN 217312327 U CN217312327 U CN 217312327U CN 202220595806 U CN202220595806 U CN 202220595806U CN 217312327 U CN217312327 U CN 217312327U
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- filter
- nanofiltration membrane
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The utility model discloses a receive filter membrane piece-rate system, including former water pitcher, former water pump, precision filter, ultrafiltration membrane group ware, booster pump, safety filter ware, high-pressure pump, receive and strain membrane group ware, clean water pitcher, dense water jar to and back flush system. The nanofiltration membrane separation system adopts a separation technology of physical screening and step purification, raw water is filtered by the precision filter, the ultrafiltration membrane group device and the security filter in sequence through a connecting pipeline and a valve and then enters the nanofiltration membrane group device for deep purification, and concentrated water produced by the nanofiltration membrane group device is used for backwashing the precision filter, the ultrafiltration membrane group device and the security filter. The utility model discloses flexible operation, simple, the operation is stable, is applicable to separation and purification of water treatment and inorganic matter, organic matter, has wide application prospect in water treatment, biology, medicine, chemical industry field.
Description
Technical Field
The utility model belongs to the technical field of the membrane separation, concretely relates to receive filter membrane piece-rate system.
Background
The nanofiltration membrane is a pressure-driven membrane interposed between the ultrafiltration membrane and the reverse osmosis membrane. Nanofiltration membranes have membrane pore sizes on the nanometer scale and are most often charged, so that they can retain divalent or multivalent ions and higher molecular weight organics while allowing some monovalent ions to pass through. The operating pressure and energy consumption of the nanofiltration membrane are between those of ultrafiltration and reverse osmosis, and the nanofiltration membrane has the advantages of low operating pressure, low energy consumption, high flux, relatively low investment and maintenance cost and the like. Due to the unique performance, the nanofiltration membrane is widely applied to the industries of biology, medicine, food, chemical industry, water treatment and the like.
The membrane aperture of the nanofiltration membrane is about 1nm, substances with the molecular weight of about 100-2000 daltons can be screened out by the nanofiltration membrane through aperture screening and charge action, partial substances such as polypeptides, micromolecular proteins and organic intermediates can be separated and purified in the fields of biology, medicine and chemical industry, and partial ions can be selectively intercepted in water treatment. At present, there are many patent technologies about nanofiltration membranes for water treatment (CN 208964663U, CN211004983U, CN 211847266U) and separation and purification of organic molecules (CN 211025424U, CN104805008A, CN 102399033A), but these process equipments have the disadvantages of single function, inconvenient operation or unstable operation.
The utility model discloses provide a flexible operation, simple to above problem, the stable receive filter membrane piece-rate system of receiving of operation. The nanofiltration membrane separation system is suitable for water treatment and separation and purification of organic matters such as micromolecular protein, polypeptide and the like, and has wide application prospect in the fields of water treatment, biology, medicine and chemical industry.
Disclosure of Invention
The utility model provides a flexible operation, simple, the stable receive filter membrane piece-rate system of receiving of operation is applicable to separation, purification of organic matters such as water treatment, micromolecular protein, polypeptide and medical intermediate.
The utility model discloses the technical scheme who takes does: the utility model provides a receive filter membrane separation system, includes former water pitcher, former water pump, precision filter, ultrafiltration membrane group ware, booster pump, cartridge filter, high-pressure pump, receives filter membrane group ware, clear water jar, dense water jar and back flush system, its characterized in that: the back washing system is composed of a cleaning pump, a concentrated water tank, a precision filter, an ultrafiltration membrane group device and a security filter which are connected through pipelines.
Furthermore, the filter material of the precision filter is one of polypropylene, polytetrafluoroethylene, cellulose acetate, ceramic, activated carbon, stainless steel and titanium alloy, and the filter precision is 50-100 microns.
Furthermore, the ultrafiltration membrane group device is composed of a plurality of ultrafiltration membrane components connected in parallel, the operating pressure of the ultrafiltration membrane group device is 0.1-0.5 MPa, and the filtering precision is 1-100 microns.
Furthermore, the cartridge filter element material is a polypropylene melt-blown material, and the filtering precision is 0.5-10 microns.
Furthermore, the nanofiltration membrane group device consists of a plurality of nanofiltration membrane components which are connected in parallel, the nanofiltration membrane components are one of roll membranes or hollow fiber membranes, the operating pressure of the nanofiltration membrane group device is 0.2-1.0 MPa, and the molecular weight cutoff is 100-2000 daltons.
Furthermore, the backwashing period of the precision filter, the ultrafiltration membrane group device and the cartridge filter is 0.5-10 hours, and the time of each backwashing is 0.5-5 minutes.
Compared with the prior art, the utility model discloses there is following advantage: (1) the physical screening and gradient purification separation technology is adopted, chemical substances are not required to be added, raw water is separated step by step, the process reliability is high, and the operation is stable. (2) The process compatibility is good, and the method is suitable for various application scenes of water treatment, chemical industry, biology and medicine.
Drawings
Figure 1 is a flow diagram of a nanofiltration membrane separation system of an embodiment.
In the figure: 1 is a raw water tank, 2 is a raw water pump, 3 is a precision filter, 4 is an ultrafiltration membrane group device, 5 is a booster pump, 6 is a security filter, 7 is a high-pressure pump, 8 is a nanofiltration membrane group device, 9 is a clean water tank, 10 is a concentrated water tank, and 11 is a cleaning pump.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
A nanofiltration membrane separation system comprising: the device comprises a raw water tank 1, a raw water pump 2, a precision filter 3, an ultrafiltration membrane group device 4, a booster pump 5, a cartridge filter 6, a high-pressure pump 7, a nanofiltration membrane group device 8, a clean water tank 9, a concentrated water tank 10 and a cleaning pump 11, wherein the devices are connected through pipelines, and the inlet and the outlet of the devices are provided with valves.
Furthermore, the raw water tank 1, the clean water tank 9 and the concentrated water tank 10 are made of one of stainless steel, polypropylene and high-density polyethylene, and are square and cylindrical.
Further, the 3 shells of precision filter are the cylindrical stainless steel of taking the head, and the filtration material is one of polypropylene, polytetrafluoroethylene, cellulose acetate, pottery, active carbon, stainless steel, titanium alloy, and the filter fineness is 50 ~ 100 microns, and precision filter 3 mainly used intercepts the fine particle thing in the aquatic.
Furthermore, the ultrafiltration membrane module 4 is composed of a plurality of ultrafiltration membrane modules connected in parallel, the shell of each ultrafiltration membrane module is made of cylindrical engineering plastic with a sealing head, the ultrafiltration membrane module is made of one of polysulfone, polyethersulfone, polyvinylidene fluoride, cellulose acetate, polytetrafluoroethylene, sulfonated polyethersulfone, polyethylene, polypropylene, polyamide and polyacrylonitrile, the operating pressure of the ultrafiltration membrane module 4 is 0.1-0.5 MPa, the filtering precision is 1-100 micrometers, and the ultrafiltration membrane module 4 is mainly used for removing pollutants such as colloids, macromolecular organic matters, bacteria and viruses in water.
Furthermore, the shell of the cartridge filter 6 is cylindrical stainless steel with a seal head, the filter element is made of polypropylene melt-blown material, the filtering precision is 0.5-10 microns, and the cartridge filter 6 is mainly used for further intercepting fine particles in water.
Furthermore, the nanofiltration membrane group device 8 is composed of a plurality of nanofiltration membrane components connected in parallel, the nanofiltration membrane component is one of a roll membrane or a hollow fiber membrane, the nanofiltration membrane material is one of cellulose acetate or aromatic polyamide, the operating pressure of the nanofiltration membrane group device 8 is 0.2-1.0 MPa, the cut-off molecular weight is 100-2000 daltons, and the nanofiltration membrane group device 8 is mainly used for separating substances such as small molecular organic matters, calcium and magnesium ions, heavy metals and most soluble salts in water.
In the separation process, raw water enters a precision filter 3 from a raw water tank 1 through a raw water pump 2, after part of fine particulate matters are removed, the raw water enters an ultrafiltration membrane group device 4, substances such as colloid, macromolecular organic matters and bacteria are removed, the raw water enters a security filter 6 through a booster pump 5, the fine particulate matters in the water are further removed, filtrate enters a nanofiltration membrane group device 8 through a high-pressure pump 7, clear water filtered by a nanofiltration membrane enters a clear water tank 9, and concentrated water filtered by the nanofiltration membrane enters a concentrated water tank 10. The precision filter 3, the ultrafiltration membrane module 4 and the security filter 6 need to be backwashed regularly, the backwashing water is the water in the concentrated water tank 10 and is backwashed through the cleaning pump 11, the backwashing period is 0.5-10 hours, the backwashing time is 0.5-5 minutes each time, and the backwashed water enters the raw water tank 1 for continuous purification treatment or discharge after coming out of the precision filter 3, the ultrafiltration membrane module 4 and the security filter 6.
Claims (6)
1. The utility model provides a receive filter membrane separation system, includes former water pitcher, former water pump, precision filter, ultrafiltration membrane group ware, booster pump, cartridge filter, high-pressure pump, receives filter membrane group ware, clear water jar, dense water jar and back flush system, its characterized in that: the back washing system is composed of a cleaning pump, a concentrated water tank, a precision filter, an ultrafiltration membrane group device and a security filter which are connected through pipelines.
2. The nanofiltration membrane separation system of claim 1, wherein: the filter material of precision filter is one of polypropylene, polytetrafluoroethylene, cellulose acetate, pottery, active carbon, stainless steel, titanium alloy, and the filter fineness is 50 ~ 100 microns.
3. The nanofiltration membrane separation system of claim 1, wherein: the ultrafiltration membrane group device is composed of a plurality of ultrafiltration membrane components connected in parallel, the operating pressure of the ultrafiltration membrane group device is 0.1-0.5 MPa, and the filtering precision is 1-100 microns.
4. The nanofiltration membrane separation system of claim 1, wherein: the cartridge filter core material is a polypropylene melt-blown material, and the filtering precision is 0.5-10 microns.
5. The nanofiltration membrane separation system of claim 1, wherein: the nanofiltration membrane group device is composed of a plurality of nanofiltration membrane components connected in parallel, the nanofiltration membrane components are roll membranes or hollow fiber membranes, the operating pressure of the nanofiltration membrane group device is 0.2-1.0 MPa, and the cut-off molecular weight is 100-2000 daltons.
6. The nanofiltration membrane separation system of claim 1, wherein: the backwashing period of the precision filter, the ultrafiltration membrane group device and the security filter is 0.5-10 hours, and the backwashing time of each time is 0.5-5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220595806.XU CN217312327U (en) | 2022-03-18 | 2022-03-18 | Nanofiltration membrane separation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220595806.XU CN217312327U (en) | 2022-03-18 | 2022-03-18 | Nanofiltration membrane separation system |
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| CN217312327U true CN217312327U (en) | 2022-08-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618229A (en) * | 2022-03-18 | 2022-06-14 | 内蒙古科泰隆达环保科技有限公司 | Nanofiltration membrane separation process and equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114618229A (en) * | 2022-03-18 | 2022-06-14 | 内蒙古科泰隆达环保科技有限公司 | Nanofiltration membrane separation process and equipment |
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