CN203999191U - A kind of resistant to pollution novel reverse osmosis membrane treatment system - Google Patents
A kind of resistant to pollution novel reverse osmosis membrane treatment system Download PDFInfo
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- CN203999191U CN203999191U CN201420399364.7U CN201420399364U CN203999191U CN 203999191 U CN203999191 U CN 203999191U CN 201420399364 U CN201420399364 U CN 201420399364U CN 203999191 U CN203999191 U CN 203999191U
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Abstract
The utility model provides a kind of resistant to pollution novel reverse osmosis membrane treatment system, in described system, be provided with high-pressure pump and reverse osmosis unit, described high-pressure pump is for rising to former water pressure the intake pressure of reverse osmosis unit, security personnel's filter is set before the water-in of high-pressure pump, water outlet connects reverse osmosis unit water inlet pipe, it is characterized in that reverse osmosis unit adopts the putamina one-part form of six cores to arrange, the concentrated stream being connected with the dense water out of described reverse osmosis unit goes out pipeline and is divided into two-way again, one tunnel is concentrated water discharge pipeline, another road is recycling pipeline, in recycling pipeline, connect dense water-circulating pump, described dense water-circulating pump is for bringing up to the pressure of the dense water reclaiming the intake pressure of reverse osmosis unit, described recycling pipeline is connected with reverse osmosis unit water inlet pipe in high-pressure pump downstream.The utility model can effectively reduce the pollution level of film, when pollute occur time, the time of washing film can effectively shorten, and simple in structure, cost is low, on-the-spot operability is stronger.
Description
Technical field
The utility model relates to a kind of resistant to pollution novel reverse osmosis membrane treatment system, is particularly suitable for processing influent COD, turbidity, dyeing waste water that calcium ions and magnesium ions is higher.
Background technology
Printing and dyeing enterprise produces in process of production a large amount of dyeing waste waters environment is caused to severe contamination.In order to keep China's sustainable economic development, country has formulated a series of policies and regulation, as the Law of the People's Republic of China on Promoting Clean Production, GB " cotton dyeing product water intaking quota ", GB " ecological textile technical requirements " etc.Cleaner production will, according to the needs of national requirement and industry development, be carried out at printing and dyeing enterprise by the enterprise of China's dyeing.Cleaner production is exactly: the clean energy, clean production whole process, clean product.Printing and dyeing enterprise will improve efficiency of energy utilization, actively carries out the new technologies such as water saving, energy-conservation and waste water recycling.
At present the tupe of dyeing waste water is mainly that waste water is collected in the workshop shunting of removing contamination, waste water finally enters air-flotation system and processes through coagulating sedimentation, anaerobism, aerobic, secondary sedimentation again, waste water COD after treatment is generally in 100mg/L left and right, and turbidity is in 20NTU left and right.Coagulating sedimentation and air supporting meeting add poly-aluminium and sulfurous acid iron in addition, and it is excessive in actual mechanical process, often to add, and causes the influent quality requirement far beyond film system of air supporting water outlet aluminum ion and iron ion, causes the problems such as a series of film fouling.After having entered film system water quality inferiority, the problem showing in Practical Project is that the intersegmental pressure reduction of film rises obviously, the runner of film often occurs dirty stifled, cause the water production rate of film obviously to decline, do not reach design load, need to clean frequently film, chemistry wants the frequent cleaning of medicament can shorten the work-ing life of film.Wash the raising greatly of film labour cost medicament expense simultaneously, cause the cost of middle water reuse to improve, this development for whole dyeing is extremely disadvantageous.Therefore, find a kind of resistant to pollution novel reverse osmosis membrane treatment system and become current main bugbear for intermediate water reuse system.
The method that improves at present the anti-fouling performance of film system mainly contains following several:
1, reverse osmosis membrane adopts the film of wide runner, and the film of wide runner has increased the passage of current greatly, makes the particulate matter in water be not easy in runner, be blocked and precipitate.After runner is wide simultaneously, in runner, stratospheric ratio greatly reduces, can effectively prevent the sedimentation of pollutent on film, reduce the probability that concentration polarization occurs simultaneously, can effectively reduce inorganic salt fouling, but the cost of the film unit surface of wide runner is more much higher than conventional film, even so but due to he can effectively alleviate film pollute, so, at present, in water reuse, this kind of film uses very extensive.
2, be coated with exotic materials on film surface, general film surface is positively charged, and pollutent is generally electronegative, this charge effect makes pollutent be easy to, in film surface attachment, cause the pollution of film, be coated with exotic materials on film surface, the charge characteristic that changes film surface, makes it electronegative, the repulsive interaction of negative charge and negative charge, pollutent is difficult at film surface deposition, carrys out the anti-pollution character of reinforcing membrane with this.
3, reduce design flux, can reduce the load of every film, extend the cycle of cleaning, but in the situation that the rate of recovery is constant, reduces design flux and mean that the flooding velocity of single putamina diminishes, cause the surface velocity of last film too low, easily fouling, so need to increase concentrate recirculation.But pressure duct complexity, 304 pipelines and welding expense account for larger proportion in the processing of whole reverse osmosis membrane frame, and the on-the-spot rate of recovery will to do large adjustment also cumbersome.Operation result is found the pollution skewness of a two-segment film; and film wants segmentation to wash; scene is washed film and need to be washed repeatedly; and actually operating normally one section of stifled rear technician of dirt goes to scene to wash film; conventionally meeting is washed together with two sections, and after two sections of dirts are stifled, technician also will go to scene to wash film, conventionally can wash together with one section; cause the waste of medicament, and personnel's waste.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of resistant to pollution novel reverse osmosis membrane treatment system, can effectively reduce the pollution level of film, in the time polluting generation, the time of washing film can effectively shorten, and simple in structure, cost is low, on-the-spot operability is stronger.
A kind of resistant to pollution novel reverse osmosis membrane treatment system, in described system, be provided with high-pressure pump and reverse osmosis unit, described high-pressure pump is for rising to former water pressure the intake pressure of reverse osmosis unit, security personnel's filter is set before the water-in of high-pressure pump, water outlet connects reverse osmosis unit water inlet pipe, it is characterized in that reverse osmosis unit adopts the putamina one-part form of six cores to arrange, the concentrated stream being connected with the dense water out of described reverse osmosis unit goes out pipeline and is divided into two-way again, one tunnel is concentrated water discharge pipeline, another road is recycling pipeline, in recycling pipeline, connect dense water-circulating pump, described dense water-circulating pump is for bringing up to the pressure of the dense water reclaiming the intake pressure of reverse osmosis unit, described recycling pipeline is connected with reverse osmosis unit water inlet pipe in high-pressure pump downstream.
Adopting on the basis of technique scheme, the utility model also can adopt following further technical scheme:
Described high-pressure pump and dense water-circulating pump all adopt vertical multi-stage centrifugal pump.
The product water end (W.E.) of reverse osmosis unit is provided with online conductivitimeter, and described conductivitimeter is connected with controller, and described system is also provided with warning howler, and described warning howler is connected with controller.
Concentrated stream goes out pipeline and also connects counter-flushing pipeline, is connected with scavenging pump and strainer on counter-flushing pipeline, and described scavenging pump is used for the boost in pressure of water for cleaning to the pressure that can enter and can see through from the dense water out of reverse osmosis unit reverse osmosis membrane; Described reverse osmosis unit water inlet pipe connects the connecting water pipe being connected with cleaning water tank, and the product water out pipeline of reverse osmosis unit also connects the connecting water pipe being connected with cleaning water tank.
The two ends of the reverse osmosis membrane in reverse osmosis unit are installed thrust ring all, can ensure that in fresh water displacement link water flows through from reverse osmosis runner.
In described recycling pipeline, on the product water out pipeline of reverse osmosis unit, reverse osmosis unit water inlet pipe with recycling pipeline joint before pipeline on flow control valve is all set.
Adopt the technical solution of the utility model, the utlity model has following advantage:
1, with respect to traditional two-part reverse osmosis membrane processing technology, six core one-part form structures of the present utility model can effectively improve the crossflow velocity of reverse osmosis membrane in conjunction with concentrate recirculation, put the only generation of concentration polarization, greatly reduce the risk of film fouling.Traditional two-part reverse osmosis membrane processing technology, in treatment of dyeing wastewater, due to suspended substance in water and organic content higher, in order to put only film fouling, its design flux is conventionally lower, causes the flow velocity on film surface too low, the salt fouling of two sections is conventionally more serious.The utility model can pass through concentrate recirculation, and flow velocity that can effective and rapid raising film surface reduces the risk of fouling greatly.
2, reduce the usage quantity of washing film medicament, reduce time and the number of times of washing film, reduce the labour cost of washing film.Traditional two-part, film is washed at scene needs segmentation to wash, and washes the twice that film required time is one-part form; And the pollution of a two-segment film distributes conventionally inhomogeneous, and actually operating normally one section of dirty plugging technique personnel goes to scene to wash film, can wash together with two sections, two sections of dirty plugging technique personnel go to scene to wash film, meeting is washed together with one section, causes the waste of medicament, and personnel's waste.
3, the utility model is simple in structure, adopts one-part form to arrange, and can meet the requirements of the rate of recovery without two sections of arrangements are set, and pipeline is simple and clear, can reduce operation easier, makes to regulate convenient, makes pipeline cost and installation cost decline simultaneously.
4, the utility model makes part concentrated water discharge, and the dense water of remainder is back to after high-pressure pump after the supercharging of overrich water-circulating pump, again enters film system process with former water after mixing, and reuses the energy of the dense water of this part, reduces ton cost of water treatment.Concentrate recirculation is after high-pressure pump, can effectively reduce the flow of high-pressure pump, therefore the equipment relevant to high-pressure pump flow, all can select the configuration of little a grade as the pipeline of the frequency transformer of high-pressure pump and high-pressure pump outlet and valve, effectively reduces facility investment and reduces installation difficulty.
Brief description of the drawings
Fig. 1 is the schematic diagram of embodiment provided by the utility model.
Embodiment
With reference to accompanying drawing.The resistant to pollution novel reverse osmosis membrane treatment system of one provided by the utility model, wherein be provided with high-pressure pump 1 and reverse osmosis unit 2, reverse osmosis unit 2 is made up of reverse osmosis membrane and pressure vessel for reverse osmosis, the structure of membrane module is rolled membrane module, described high-pressure pump 1 is for rising to former water pressure the intake pressure of reverse osmosis unit 2, security personnel's filter 93 is set before the water-in of high-pressure pump, solid particle polluter in former water can be trapped in filter core, prevent that particulate matter from breaking the impeller of high-pressure pump, scratch reverse osmosis diaphragm, the water outlet of high-pressure pump connects reverse osmosis unit water inlet pipe 21, reverse osmosis unit 2 in the utility model system adopts the putamina one-part form arranged of six cores, all reverse osmosis units 2 adopt parallel form, the concentrated stream being connected with the dense water out of described reverse osmosis unit goes out pipeline 22 and is divided into two-way again, one tunnel is concentrated water discharge pipeline 3, another road is recycling pipeline 4, drawing reference numeral E represents " going to reverse osmosis concentrated pond ", in recycling pipeline 4, connect dense water-circulating pump 5, described dense water-circulating pump 5 is for bringing up to the pressure of the dense water reclaiming the intake pressure of reverse osmosis unit 2, described recycling pipeline 4 is connected with reverse osmosis unit water inlet pipe 21 in high-pressure pump 1 downstream.Drawing reference numeral A represents " going to reverse osmosis produced pond ", and drawing reference numeral D represents " from former pond ".Former water is through the processing of reverse osmosis membrane, and salinity wherein and other impurity are trapped within dense water end (W.E.), produces water and emits from the opposite side of film, by reuse.
Reverse osmosis unit 2 in the utility model selects the putamina of six cores to adopt one-part form to arrange, and by dense water pump around circuit in one section of putamina of large flow, increases the flow velocity on film surface, improves the rate of recovery of film system.In described recycling pipeline 4, on the product water out pipeline 23 of reverse osmosis unit, reverse osmosis unit water inlet pipe 21 with recycling pipeline 4 joints before pipeline on flow control valve 61,62,63 is all set.Can regulate the emission flow of feed water by reverse osmosis flow, dense water and produce discharge, reaching the rate of recovery of design requirements, the reflux ratio of requirement.The amount that increases concentrate recirculation reaches more than 6 the surface velocity of last film, prevents the generation of concentration polarization.
The pollution-resistant membrane that the film adopting described in reverse osmosis unit 2 in the utility model is wide runner.
Described high-pressure pump 1 and dense water-circulating pump 5 all adopt vertical multi-stage centrifugal pump.
The product water end (W.E.) of reverse osmosis unit is provided with online conductivitimeter, and described conductivitimeter is connected with controller, and described system is also provided with warning howler, and described warning howler is connected with controller.
Concentrated stream goes out pipeline 22 and also connects counter-flushing pipeline 7, on counter-flushing pipeline 7, be connected with scavenging pump 71 and strainer 72, drawing reference numeral B represents " coming self-cleaning water source ", described scavenging pump 71 for by the boost in pressure of water for cleaning to entering and can see through the pressure of reverse osmosis membrane from the dense water out of reverse osmosis unit; Described reverse osmosis unit water inlet pipe 21 also connects the connecting water pipe 81 that removes to clean water tank, and drawing reference numeral C represents " removing to clean water tank ", and the product water out pipeline 23 of reverse osmosis unit also connects the connecting water pipe 82 that removes to clean water tank.
The two ends of the reverse osmosis membrane in reverse osmosis unit are installed thrust ring all, can ensure that in fresh water displacement link water flows through from reverse osmosis runner.
In the utility model, the material of flow passage components can be 304 or 316 according to the difference of influent quality.Pressure duct can adopt 304 materials, and low-pressure section pipeline can adopt UPVC material.Valve can all adopt cast iron plating nylon material, can consider to adopt 304 replacements, but cost is higher during without cast iron plating nylon material.
Operation steps of the present utility model is as follows:
Start is rinsed: after device power-up, start separately reverse osmosis booster pump 91,, by the water flushing discharge remaining in reverse osmosis membrane the dirt remaining in reverse osmosis system is discharged to outside film system with former water.
Normal operation: the pre-treatment of former water is air supporting, sand-bed filter and ultrafiltration membrane system.Former water enters film through security personnel's filter 93 again to high-pressure pump 1.Produce the product water end (W.E.) output of water from film; part concentrated water discharge, remainder concentrate recirculation enters film again to be processed, and produces water end (W.E.) described online conductivitimeter is installed; in the time that product water conductivity is defective; controller control warning howler automatic alarm, manual switching valve, makes to produce water and does not enter to produce pond; shutdown inspection reverse osmosis system; after pending fault is removed, restarting systems, starts to produce water.
Shut down and rinse: when producing the high liquid level in pond; when the low liquid level in former pond or other require equipment downtime; system is stopped high-pressure pump 1; reverse osmosis booster pump 91 continues operation for some time; former water directly enters reverse osmosis membrane on the basis of pressurizeing without high-pressure pump 1; water higher saltiness in film is gone out outside system, put the only fouling because the concentration of salt is too high in film.
Fresh water displacement: shut down after flushing finishes and close reverse osmosis booster pump 91; drive reverse osmosis scavenging pump 71; reverse osmosis produced water goes out end from dense aquatic products and enters reverse osmosis membrane; the pollutent resting in reverse osmosis membrane is developed; and former water original in film is cemented out, change almost salt-free reverse osmosis produced water, ensure that film is among clean reverse osmosis produced water; put only growing of microorganism, can eliminate the osmotic pressure of film both sides simultaneously.
Matting: carry out to a certain extent time when film is stifled, film cleaning agent is got in reverse osmosis membrane, through long circulation immersion, will be blocked in Fouling Cleaning in runner out.
Claims (4)
1. a resistant to pollution novel reverse osmosis membrane treatment system, in described system, be provided with high-pressure pump and reverse osmosis unit, described high-pressure pump is for rising to former water pressure the intake pressure of reverse osmosis unit, security personnel's filter is set before the water-in of high-pressure pump, water outlet connects reverse osmosis unit water inlet pipe, it is characterized in that reverse osmosis unit adopts the putamina one-part form of six cores to arrange, the concentrated stream being connected with the dense water out of described reverse osmosis unit goes out pipeline and is divided into two-way again, one tunnel is concentrated water discharge pipeline, another road is recycling pipeline, in recycling pipeline, connect dense water-circulating pump, described dense water-circulating pump is for bringing up to the pressure of the dense water reclaiming the intake pressure of reverse osmosis unit, described recycling pipeline is connected with reverse osmosis unit water inlet pipe in high-pressure pump downstream.
2. the resistant to pollution novel reverse osmosis membrane treatment system of one as claimed in claim 1, it is characterized in that concentrated stream goes out pipeline and also connects counter-flushing pipeline, on counter-flushing pipeline, be connected with scavenging pump and strainer, described scavenging pump is used for the boost in pressure of water for cleaning to the pressure that can enter and can see through from the dense water out of reverse osmosis unit reverse osmosis membrane; Described reverse osmosis unit water inlet pipe connects the connecting water pipe being connected with cleaning water tank, and the product water out pipeline of reverse osmosis unit also connects the connecting water pipe being connected with cleaning water tank.
3. the resistant to pollution novel reverse osmosis membrane treatment system of one as claimed in claim 2, is characterized in that all installed thrust rings of two ends of the reverse osmosis membrane in reverse osmosis unit, can ensure that in fresh water displacement link water flows through from reverse osmosis runner.
4. the resistant to pollution novel reverse osmosis membrane treatment system of one as claimed in claim 2, it is characterized in that in described recycling pipeline, on the product water out pipeline of reverse osmosis unit, reverse osmosis unit water inlet pipe with recycling pipeline joint before pipeline on flow control valve is all set.
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| CN201420399364.7U CN203999191U (en) | 2014-07-18 | 2014-07-18 | A kind of resistant to pollution novel reverse osmosis membrane treatment system |
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| CN201420399364.7U CN203999191U (en) | 2014-07-18 | 2014-07-18 | A kind of resistant to pollution novel reverse osmosis membrane treatment system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554052A (en) * | 2015-09-30 | 2017-04-05 | 神华集团有限责任公司 | A kind of concurrent flow reverse osmosis membrane assembly, counter-infiltration system and the method for processing brackish water |
| CN110078245A (en) * | 2019-06-06 | 2019-08-02 | 淄博博立特冷冻空调设备有限公司 | A kind of systemic circulation multiplying power concentrate recirculation embrane method Sewage treatment reclaiming system |
| CN111362360A (en) * | 2020-03-24 | 2020-07-03 | 深圳市为开环保科技有限公司 | Membrane method internal circulation concentration method |
| CN112473374A (en) * | 2020-11-06 | 2021-03-12 | 张梅 | Semipermeable membrane desalination device and method with bidirectional forward osmosis online cleaning function |
| CN116750905A (en) * | 2023-05-17 | 2023-09-15 | 广东博芳环保科技集团股份有限公司 | Lower electrode production wastewater treatment method |
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2014
- 2014-07-18 CN CN201420399364.7U patent/CN203999191U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554052A (en) * | 2015-09-30 | 2017-04-05 | 神华集团有限责任公司 | A kind of concurrent flow reverse osmosis membrane assembly, counter-infiltration system and the method for processing brackish water |
| CN110078245A (en) * | 2019-06-06 | 2019-08-02 | 淄博博立特冷冻空调设备有限公司 | A kind of systemic circulation multiplying power concentrate recirculation embrane method Sewage treatment reclaiming system |
| CN111362360A (en) * | 2020-03-24 | 2020-07-03 | 深圳市为开环保科技有限公司 | Membrane method internal circulation concentration method |
| CN111362360B (en) * | 2020-03-24 | 2022-05-24 | 深圳市为开环保科技有限公司 | Membrane method internal circulation concentration method |
| CN112473374A (en) * | 2020-11-06 | 2021-03-12 | 张梅 | Semipermeable membrane desalination device and method with bidirectional forward osmosis online cleaning function |
| CN112473374B (en) * | 2020-11-06 | 2022-04-12 | 张梅 | Semipermeable membrane desalination device and method with bidirectional forward osmosis online cleaning function |
| CN116750905A (en) * | 2023-05-17 | 2023-09-15 | 广东博芳环保科技集团股份有限公司 | Lower electrode production wastewater treatment method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311121 No. 14, Yu Xiang Road (Hangzhou), former industrial park, Yuhang District, Zhejiang Patentee after: Hangzhou top environmental Polytron Technologies Inc Address before: 311121 No. 14, Yu Xiang Road (Hangzhou), former industrial park, Yuhang District, Zhejiang Patentee before: HANGZHOU SUNUP ENVIRONMENT TECHNOLOGY CO., LTD. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel pollution-resistant reverse osmosis membrane treatment system Effective date of registration: 20170106 Granted publication date: 20141210 Pledgee: Yuhang Hangzhou science and technology Company limited by guarantee Pledgor: Hangzhou top environmental Polytron Technologies Inc Registration number: 2017330000001 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210804 Granted publication date: 20141210 Pledgee: Yuhang Hangzhou science and technology Company limited by guarantee Pledgor: SUNUP ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Registration number: 2017330000001 |