CN104386782A - Energy-saving high-salt reverse osmosis device - Google Patents
Energy-saving high-salt reverse osmosis device Download PDFInfo
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- CN104386782A CN104386782A CN201410682074.8A CN201410682074A CN104386782A CN 104386782 A CN104386782 A CN 104386782A CN 201410682074 A CN201410682074 A CN 201410682074A CN 104386782 A CN104386782 A CN 104386782A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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Abstract
The invention relates to an energy-saving high-salt reverse osmosis device which consists of a water supply tank, a water supply pump, a cartridge filter, a high-pressure pump, a booster pump, a pressure exchange type energy recoverer, an RO (reverse osmosis) water producing tank, a concentrated water tank and two sections of reverse osmosis membranes, wherein the effluent of the water supply tank is divided into two paths by a filter, one path of the effluent is supplied to the low-pressure water inlet end of the energy recoverer, and the other path of the effluent is supplied to the input end of the section I of the reverse osmosis membrane; the RO water producing end and the RO concentrated water end of the section I of the reverse osmosis membrane are respectively connected to the inlet end of the RO water producing tank and the input end of the section II of the reverse osmosis membrane; the RO water producing end and the RO concentrated water end of the section II of the reverse osmosis membrane are respectively connected to the water inlet end of the RO water producing tank and the high-pressure water inlet end of the energy recoverer; and the high-pressure water outlet end and the low-pressure water outlet end of the energy recoverer are respectively connected to the input end of the section I of the reverse osmosis membrane and the water inlet end of the concentrated water tank. The product is mainly applied to zero-emission wastewater systems of chemical enterprises, and one-time investment of the zero-emission system can be greatly saved.
Description
Technical field
The invention belongs to technical field of water treatment equipment, relate to a kind of energy-saving high salt reverse osmosis unit for inland petroleum chemical enterprise process without drainage of waste water.
Background technology
Along with the requirement of Environmental protection is more and more higher, inland petroleum chemical enterprise is in the urgent need to implementing wastewater zero discharge.In process without drainage of waste water, it is necessary operation stage that reverse osmosis membrane concentrates.Qualified product water after the reverse osmosis concentrated water of what the water of petroleum chemical enterprise's technique of zero discharge generally received is Treated sewage reusing or sewage disposal, because saltiness general in water is at more than 10000mg/L, so process water inlet saltiness is called dense water reverse osmosis unit at the reverse osmosis unit of more than 10000mg/L by us.During work, the reverse osmosis concentrated water of front end Treated sewage reusing is carried out the concentrated of times amount by dense water reverse osmosis unit, for subsequent evaporation crystalline element provides economic condition.At present, water inlet saltiness well known in the art is not equipped with energy recovery facility substantially more than the dense water reverse osmosis unit of 10000mg/L, because the intake pressure of existing dense water reverse osmosis unit is generally at more than 2MPa, operating pressure is high, so the dense water pressure of its II section of reverse osmosis membrane is just high, the high-pressure thick water of more than the 2MPa of II section of reverse osmosis membrane is delivered directly to hypomere technique unit in the past, causes a large amount of wastes of energy.Though also there is a small amount of reverse osmosis unit to be equipped with turbine type recuperator in prior art, the energy recovery efficiency of such device also only has about 60%.
Summary of the invention
The object of the invention is to the above-mentioned defect overcoming prior art existence, a kind of rational in infrastructure, easy to operate, significant energy-saving high salt reverse osmosis unit of energy-saving effect is provided.
For achieving the above object and adopt technical solution be such: the energy-saving high salt reverse osmosis unit provided is by the feed-tank connected by pipeline, frequency conversion service pump, cartridge filter (namely filtering accuracy is the strainer of 5 μm), high-pressure pump, I section reverse osmosis membrane, II section of reverse osmosis membrane, intersegmental freq uency conversion supercharging pump, pressure exchanger energy recovery fix, RO produces water tank, dense water tank composition, the water outlet of feed-tank is divided into two-way after frequency conversion service pump and cartridge filter, the low pressure feed-water end of pressure exchanger energy recovery fix delivered to by one routing energy withdrawer low pressure water inlet pipe, the input terminus of I section reverse osmosis membrane is delivered on another road, the RO of I section reverse osmosis membrane produces the defeated entrance end being connected to RO product water tank of water end (W.E.), the dense water end (W.E.) of RO of I section reverse osmosis membrane delivers to the input terminus of II section of reverse osmosis membrane after intersegmental freq uency conversion supercharging pump, the RO of II section of reverse osmosis membrane produces water end (W.E.) and is connected to the inlet end that RO produces water tank, the dense water end (W.E.) of RO of II section of reverse osmosis membrane is delivered to the high-pressure water inlet end of pressure exchanger energy recovery fix by recuperator high-pressure intake pipe, the high pressure water side of pressure exchanger energy recovery fix and low pressure delivery end are respectively by recuperator high-pressure outlet and recuperator low pressure delivery pipe is defeated is connected to the input terminus of I section reverse osmosis membrane and the inlet end of dense water tank.
Technical solution of the present invention also comprises: the pipeline between freq uency conversion supercharging pump to II section reverse osmosis membrane is equipped with first row air valve, the pipeline of recuperator high-pressure outlet and the pipeline of recuperator low pressure delivery pipe are equipped with a variable valve respectively, also draw the water shoot passing to trench outside one end in branch side at the pipeline of recuperator low pressure delivery pipe, water shoot is equipped with water discharge valve.
Technical solution of the present invention also comprises: the under meter with the chain control of variable valve is housed on the pipeline of recuperator high-pressure outlet, and the pipeline of recuperator low pressure water inlet pipe is equipped with the under meter with the chain control of variable valve on recuperator low pressure delivery pipe.
Technical solution of the present invention also comprises: pressure exchanger energy recovery fix adopts model to be the recuperator of PX220.
Technical solution of the present invention also comprises: I section reverse osmosis membrane and II section of reverse osmosis membrane adopt model to be the reverse osmosis membrane of SW30HRLE-400i and SW30ULE-400i respectively.
The practicing of high salt reverse osmosis unit of the present invention makes the reverse osmosis of high-salt wastewater be recycled becomes possibility, also makes the scale of the multiple-effect evaporator of technique of zero discharge end reduce simultaneously, thus decreases the one-time investment of zero release.Use common reverse osmosis concentration, the water inlet saltiness of multiple-effect can be made to reach 15000 ~ 20000mg/L, and the water yield is also large; And employ the reverse osmosis unit of high salt of the present invention, by the saltiness reconcentration one times of water, i.e. 30000 ~ 40000mg/L, even can reach 50000mg/L, the water yield is also little, so just greatly reduces the scale of multi-effect evaporation system.In addition, the present invention is also for new field has been opened up in the application of reverse osmosis unit, reverse osmosis unit due to current sea water desaltination is one-part form substantially, Water Sproading rate is 45% ~ 50%, similar and the seawater of high salt reverse osmosis unit water inlet saltiness of the present invention, so can be applied in sea water desaltination, improve the Water Sproading rate 10 ~ 20 percentage points of sea water desaltination.The energy recovery efficiency of high salt reverse osmosis unit of the present invention reaches more than 95%, and product mainly will be applied in the wastewater zero discharge system of chemical enterprise, greatly can save the one-time investment of Zero discharging system.
Accompanying drawing explanation
Accompanying drawing is the principle of work schematic diagram of the present invention's specific embodiment structure.
In figure, each label title respectively: 1-feed-tank, 2-frequency conversion service pump, 3-cartridge filter, 4-high-pressure pump, 5-I section reverse osmosis membrane, 6-inter-section booster, 7-II section of reverse osmosis membrane, 8-pressure exchanger energy recovery fix, 9-RO produces water tank, the dense water tank of 10-, 11-recuperator low pressure water inlet pipe, 12-recuperator high-pressure outlet, 13-recuperator high-pressure intake pipe, 14-recuperator low pressure delivery pipe, 15-(water inlet of recuperator low pressure) under meter, 16-(recuperator high-pressure water inlet) under meter, 17-(recuperator low pressure delivery) variable valve, 18-(water outlet of recuperator high pressure) variable valve, 19-first row air valve, 20-(recuperator low pressure delivery) water discharge valve, 21-second row air valve.
Embodiment
Below with reference to accompanying drawing, content of the present invention is described further, but practical application form of the present invention is not limited in illustrated embodiment.
See accompanying drawing, energy-saving high salt reverse osmosis unit of the present invention produces the composition such as water tank 9, dense water tank 10 primarily of logical feed-tank 1, frequency conversion service pump 2, cartridge filter 3, high-pressure pump 4, I section reverse osmosis membrane 5, intersegmental freq uency conversion supercharging pump 6, II section of reverse osmosis membrane 7, pressure exchanger energy recovery fix 8, RO, and cartridge filter 3 is wherein be the strainer of 5 μm built with the filtering accuracy of 5 μm of filtering accuracy polypropylene filter cores.The water outlet (the former water of waste water) of feed-tank 1 is divided into two-way successively after frequency conversion service pump 2 and cartridge filter 3, the low pressure feed-water end of pressure exchanger energy recovery fix 8 delivered to by one routing energy withdrawer low pressure water inlet pipe 11, and the input terminus of I section reverse osmosis membrane 5 is delivered on another road.The RO of I section reverse osmosis membrane 5 produces the defeated entrance end being connected to RO product water tank 9 of water end (W.E.), the dense water end (W.E.) of RO of I section reverse osmosis membrane 5 delivers to the input terminus of II section of reverse osmosis membrane 7 after intersegmental freq uency conversion supercharging pump 6, and the pipeline wherein between freq uency conversion supercharging pump 6 to II sections of reverse osmosis membranes 7 is equipped with first row air valve 19 and under meter.The RO of II section of reverse osmosis membrane 7 produces water end (W.E.) and is also connected to the inlet end that RO produces water tank 9, the dense water end (W.E.) of RO of II section of reverse osmosis membrane 7 is then delivered to the high-pressure water inlet end of pressure exchanger energy recovery fix 8 by recuperator high-pressure intake pipe 13, recuperator high-pressure intake pipe 13 is equipped with second row air valve 21 and under meter.The high pressure water side of pressure exchanger energy recovery fix 8 and low pressure delivery end are respectively by recuperator high-pressure outlet 12 and recuperator low pressure delivery pipe 14 is defeated is connected to the input terminus of I section reverse osmosis membrane 5 and the inlet end of dense water tank 10.The pipeline of recuperator high-pressure outlet 12 is equipped with variable valve 18 and the under meter 16 with the chain control of this variable valve 18, the under meter 15 with the chain control of variable valve 17 on recuperator low pressure delivery pipe 14 is housed in addition on the pipeline of recuperator low pressure water inlet pipe 11.
The model of the U.S. ERI Company that the pressure exchanger energy recovery fix 8 arranged in the present embodiment adopts is PX220 (32-50m
3/ h) recuperator, the pressure of the high-pressure thick water end (W.E.) from RO membrane stack can be passed to the former water end (W.E.) of low pressure by PX220 device, and these two strands of current directly contact in the interior passageway of rotor, thus complete pressure-exchange.Rotor in PX220 device is contained in an accurate ceramic jacket of gap size, and this ceramic jacket, between two ceramic end caps, when high-pressure thick salt solution is injected by high-pressure side, can form an almost frictionless waterpower bearing.At the moving parts that the rotor of waterpower bearing rotary is unique in PX device, at any time, the half of rotor interior passageway is in High-Pressure Water, and second half is then in low pressure water flow.During rotor turns, passage can by a seal area by high pressure and low pressure isolation, and these contain the passage of high pressure water and the adjacent passage containing low-pressure water is isolated by the seal area that the partition between rotor channel and ceramic end cap are formed.
The I section reverse osmosis membrane 5 arranged in the present embodiment and II section of reverse osmosis membrane 7 adopt model to be the reverse osmosis membrane of SW30HRLE-400i and SW30ULE-400i respectively.
Operating procedure of the present invention is:
One, the low-press thick water water discharge valve 20 of first row air valve 19, second row air valve 21 and PX220 device is opened successively, PX220 device high-tension side is gone out water regulating valve 18 and PX220 device low-tension side to go out water regulating valve 17 and be all transferred to 30% aperture, be convenient to the flow controlled through PX220 device and be no more than 50m
3/ h, by variable valve 17 and the chain control of under meter 15, variable valve 18 and the chain control of under meter 16;
Two, start frequency conversion service pump 2, setpoint frequency is at 20Hz, and now former water is by recuperator low pressure water inlet pipe 11 to pressure exchanger energy recovery fix 8, is exported, and then make it to drain into trench by water discharge valve 20 by recuperator low pressure delivery pipe 14;
Three, step 2 steady running about 3min is made, when variable valve 18 regulates PX220 device high-tension side water flow meter 16 reading to be 35.5m automatically
3/ h, variable valve 17 regulates PX220 device low-tension side feed water flow gauge 15 reading to be 35.5m automatically
3/ h, when regime flow reaches requirement, starts inter-section booster 6 to setpoint frequency 35Hz, proceeds system exhaust, be vented about 5min;
Four, the first row air valve 19 of closure systems and second row air valve 21, and close the low-press thick water water discharge valve 20 of PX220 device, start high-pressure pump 4 to setpoint frequency 30Hz, at this moment PX220 device starts to rotate under the promotion of High-Pressure Water, the reverse osmosis concentrated water of the former water of the low pressure of B point and the high pressure of J point carries out energy exchange, low-pressure water obtains energy and points out from K, converges to high-pressure pump outlet conduit, is discharged after the high pressure reverse osmosis concentrated water expended energy step-down of J point by M point;
Five, reverse osmosis unit starts normally water processed.
Energy-saving high salt reverse osmosis unit of the present invention has carried out the dense water reverse osmosis experimental applications of wastewater zero discharge at present in the raw wetland project of Jingbian County, Shaanxi Province sand, use the brackish water reverse osmosis unit of PX220 recuperator, feed water by reverse osmosis amount 90m
3/ h, water production rate 54m
3/ h, dense water yield 36m
3/ h, Water Sproading rate 60%, water inlet saltiness 13500mg/cm, temperature 20 DEG C.The related data index that itself and existing reverse osmosis unit contrast is as following table:
Claims (4)
1. an energy-saving high salt reverse osmosis unit, it is characterized in that: by the feed-tank connected by pipeline (1), frequency conversion service pump (2), cartridge filter (3), high-pressure pump (4), I section reverse osmosis membrane (5), II section of reverse osmosis membrane (7), intersegmental freq uency conversion supercharging pump (6), pressure exchanger energy recovery fix (8), RO produces water tank (9), dense water tank (10) forms, the water outlet of feed-tank (1) is divided into two-way after frequency conversion service pump (2) and cartridge filter (3), one routing energy withdrawer low pressure water inlet pipe (11) delivers to the low pressure feed-water end of pressure exchanger energy recovery fix (8), the input terminus of I section reverse osmosis membrane (5) is delivered on another road, the RO of I section reverse osmosis membrane (5) produces the defeated entrance end being connected to RO product water tank (9) of water end (W.E.), the dense water end (W.E.) of RO of I section reverse osmosis membrane (5) delivers to the input terminus of II section of reverse osmosis membrane (7) after intersegmental freq uency conversion supercharging pump (6), the RO of II section of reverse osmosis membrane (7) produces water end (W.E.) and is connected to the inlet end that RO produces water tank (9), the dense water end (W.E.) of RO of II section of reverse osmosis membrane (7) is delivered to the high-pressure water inlet end of pressure exchanger energy recovery fix (8) by recuperator high-pressure intake pipe (13), the high pressure water side of pressure exchanger energy recovery fix (8) and low pressure delivery end are respectively by recuperator high-pressure outlet (12) and recuperator low pressure delivery pipe (14) is defeated is connected to the input terminus of I section reverse osmosis membrane (5) and the inlet end of dense water tank (10).
2. energy-saving high salt reverse osmosis unit according to claim 1, it is characterized in that: vent valve (19) on the pipeline between freq uency conversion supercharging pump (6) to II section of reverse osmosis membrane (7), the pipeline of recuperator high-pressure outlet (12) and the pipeline of recuperator low pressure delivery pipe (14) are equipped with a variable valve (18,17) respectively, also draw the water shoot passing to trench outside one end in branch side at the pipeline of recuperator low pressure delivery pipe (14), water shoot is equipped with water discharge valve (20).
3. energy-saving high salt reverse osmosis unit according to claim 2, it is characterized in that: the under meter (16) with variable valve (18) chain control is housed on the pipeline of recuperator high-pressure outlet (12), the pipeline of recuperator low pressure delivery pipe (14) is equipped with the under meter (15) with variable valve (17) chain control.
4. energy-saving high salt reverse osmosis unit according to claim 1, is characterized in that: described pressure exchanger energy recovery fix (8) adopts model to be the recuperator of PX220.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410682074.8A CN104386782A (en) | 2014-11-21 | 2014-11-21 | Energy-saving high-salt reverse osmosis device |
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| CN201410682074.8A CN104386782A (en) | 2014-11-21 | 2014-11-21 | Energy-saving high-salt reverse osmosis device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045098A (en) * | 2016-08-02 | 2016-10-26 | 华电水务工程有限公司 | Energy-saving type ultra-high-pressure reverse osmosis system |
| CN107497300A (en) * | 2017-10-20 | 2017-12-22 | 陕西省石油化工研究设计院 | A kind of two-way separator of high strong brine NF membrane and method |
| CN108706782A (en) * | 2018-06-29 | 2018-10-26 | 上海汉盛环保科技有限公司 | A kind of sea water desalination processing unit |
| CN115920635A (en) * | 2023-01-05 | 2023-04-07 | 寿光北控水务有限公司 | Multi-section semipermeable membrane device with function of internal energy return and backflow in sections and method |
| CN115970498A (en) * | 2023-01-18 | 2023-04-18 | 珠海格力电器股份有限公司 | Method for manufacturing stage type filter element |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202265462U (en) * | 2011-09-30 | 2012-06-06 | 珠海市江河海水处理设备工程有限公司 | Energy recovery and desalination system by plunger pump |
| CN202369459U (en) * | 2011-12-16 | 2012-08-08 | 北京英诺格林科技有限公司 | Seawater desalting system |
| CN103601310A (en) * | 2013-07-15 | 2014-02-26 | 浙江斯科能科技股份有限公司 | Water processing method and device thereof of seawater desalination system |
| CN204365146U (en) * | 2014-11-21 | 2015-06-03 | 陕西省石油化工研究设计院 | Energy-saving high salt reverse osmosis unit |
-
2014
- 2014-11-21 CN CN201410682074.8A patent/CN104386782A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202265462U (en) * | 2011-09-30 | 2012-06-06 | 珠海市江河海水处理设备工程有限公司 | Energy recovery and desalination system by plunger pump |
| CN202369459U (en) * | 2011-12-16 | 2012-08-08 | 北京英诺格林科技有限公司 | Seawater desalting system |
| CN103601310A (en) * | 2013-07-15 | 2014-02-26 | 浙江斯科能科技股份有限公司 | Water processing method and device thereof of seawater desalination system |
| CN204365146U (en) * | 2014-11-21 | 2015-06-03 | 陕西省石油化工研究设计院 | Energy-saving high salt reverse osmosis unit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045098A (en) * | 2016-08-02 | 2016-10-26 | 华电水务工程有限公司 | Energy-saving type ultra-high-pressure reverse osmosis system |
| CN107497300A (en) * | 2017-10-20 | 2017-12-22 | 陕西省石油化工研究设计院 | A kind of two-way separator of high strong brine NF membrane and method |
| CN108706782A (en) * | 2018-06-29 | 2018-10-26 | 上海汉盛环保科技有限公司 | A kind of sea water desalination processing unit |
| CN115920635A (en) * | 2023-01-05 | 2023-04-07 | 寿光北控水务有限公司 | Multi-section semipermeable membrane device with function of internal energy return and backflow in sections and method |
| CN115920635B (en) * | 2023-01-05 | 2024-02-20 | 寿光北控水务有限公司 | Multi-section semipermeable membrane device and method with in-section energy return and reflux functions |
| CN115970498A (en) * | 2023-01-18 | 2023-04-18 | 珠海格力电器股份有限公司 | Method for manufacturing stage type filter element |
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Application publication date: 20150304 |