CN202107589U - Concentrated water high temperature reverse osmosis treatment equipment - Google Patents
Concentrated water high temperature reverse osmosis treatment equipment Download PDFInfo
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- CN202107589U CN202107589U CN2011201307019U CN201120130701U CN202107589U CN 202107589 U CN202107589 U CN 202107589U CN 2011201307019 U CN2011201307019 U CN 2011201307019U CN 201120130701 U CN201120130701 U CN 201120130701U CN 202107589 U CN202107589 U CN 202107589U
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Abstract
The utility model provides concentrated water high temperature reverse osmosis treatment equipment, wherein the concentrated water box of the equipment is connected with the concentrated water inlet of a surface heat exchanger through a lift pump. The concentrated water outlet of the surface heat exchanger is connected with the water inlet of a precise filter. The water outlet of the precise filter is connected with the concentrated water input end of a high temperature reverse osmosis membrane device through a high pressure pump. The water purification output end of the high temperature reverse osmosis membrane device is connected with the input end of a water purification box. The ultra-concentrated water output end of the high temperature reverse osmosis membrane device is connected with the concentrated water high pressure inlet of an energy recovery device. The concentrated water low pressure outlet of the energy recovery device is connected with an ultra-concentrated waste water box. The clear water low pressure inlet of the energy recovery device is connected with the water outlet of the precise filter. The clear water high pressure outlet of the energy recovery device is connected with the concentrated water input end of the high temperature reverse osmosis membrane device through a booster pump. The concentrated water high temperature reverse osmosis treatment equipment is stable, safe and reliable in operation, which can further condensate the concentrated water after the conventional two-stage type reverse osmosis treatment. The weight of the obtained accumulated purified water accounts for more than 95% of the total weight of the waste water. Meanwhile, the investment and operation cost is effectively reduced.
Description
Technical field
The utility model relates to the degree of depth recycling equipment of trade effluent, refers to a kind of dense water high temperature reverse-osmosis treated equipment particularly.
Background technology
In the recycling equipment of industrial brine waste; R-o-has extensively been applied to industry-by-industries such as electric power, metallurgy, petrochemical industry, electronics as the most advanced the most effectively desalter in the world today, but utilizes its concentration process to extract the not high inside and outside question of common concern of industry that become of recovery levels that water purification relates to.For example certain brackish water (face of land river, lake, face of land water, underground water, factory's internal recycle water, handle the middle water of discharging etc.) gets into clear water reverse-osmosis treated device after through series of preprocessing (comprising mixing, reaction, deposition, cascade filtration, softening, absorption, decarburization, dosing adjusting etc.); Its recovery is mostly about 75%; I.e. 100 tons of feed water by reverse osmosis per hour; The product fresh water that obtains is about 75 tons, and the condensed water that also has salinity to concentrate is regarded as discharge of wastewater for 25 tons and has fallen.A large amount of dischargings of this condensed water make systematic running cost high, also are considered to be a kind of high energy consumption.
Raising along with industrial expansion and living standards of the people; The scarcity of water resources has become the two large problems that the mankind press for solution with polluting; Wherein the recycling to trade effluent seems more and more important, and it is inside and outside to the requirement of clear water r-o-as elementary desalting plant that about 75% the low recovery can not satisfy industry.This concentrated field that is desirably in special solutes such as northern China water-deficient area, middle water reuse field, wastewater zero discharge ZLD system and fruit juice, medicine to high-recovery is particularly outstanding, and the recovery that how to improve reverse osmosis equipment is the problem that vast water treatment scientific research personnel pays close attention to always.
In order to address the above problem; The scientific research personnel designs and has adopted the two-part equipment of former water reverse osmosis (RO) and dense water r-o-CRO to make up to concentrate the pollutents such as salt in the waste water; Perhaps adopt the dense water r-o-of the multistage that forms by both merging MCRO equipment to separate pollutants in waste water; But receive the restriction of self reverse-osmosis membrane element structure etc., the raising degree of its trade effluent recovery is little, and great majority are about 85%.Because an isolated condensed water saltiness is very high; If reuse dense water r-o-CRO treatment facility; The pressure rating that then can exceed its reverse-osmosis membrane element requires (the highest 83Bar) and produces safety-problems; And meeting in service produces the difficulty soluble salt contamination phenomenon, so still there is the condensed water of carrying energy in a large number to be emitted in vain.
Along with going deep into of research, the scientific research personnel has released the higher efficient r-o-HERO equipment of waste water reclamation rate in recent years, and under the very high situation of only a few industrial media viscosity, has used high temperature r-o-HTRO equipment.
Efficient r-o-HERO equipment can be brought up to the degree near 90% with the waste water reclamation rate through the improvement to the Wastewater Pretreatment flow process.But because its reverse osmosis membrane stress makes the mechanism of water molecules reverse osmosis have multiplicity and ambiguity;, design just failed well to be used since coming out always; Particularly very unstable in the processing of power plant desulfurization waste water and wastewater from chemical industry, show reverse osmosis unit fast, the aspect such as matting is frequent, the membrane element contamination and plugging is serious that descends of exerting oneself.Frequent matting not only can cause the constantly soaring of cost of equipment maintenance and human cost, but also the stability and the security of its process system operation constituted a latent danger.
High temperature r-o-HTRO equipment has the resistance to crocking height, working pressure is low, tolerable temperature is high, operation pH value scope extensively, characteristics such as organism and difficulty soluble salt separating size height; Can handle the high strong brine of saltiness high (total dissolved solidss 30000-80000ppm); But because it need use expensive high temperature reverse-osmosis membrane element; And the pressure rating and the corrosion-resistant class requirement thereof of the pump supporting with it, pipeline, container are all high; So the manufacturing expense of equipment is very high, simultaneously also because its reverse osmosis desalination rate under hot operation low relatively (having only 95%) makes its product water water quality relatively poor relatively; These make it only limit to the high only a few small reverse osmosis of dielectric viscosity in the past and concentrate occasion, on waste water reclamation is handled, fail to obtain to utilize always.When implementing wastewater zero discharge, the highest can only the reaching about 90% of the recovery of purifying waste water of dense water r-o-CRO and efficient r-o-HERO is so need the dense water yield of evaporative crystallization still very big.
Summary of the invention
The purpose of the utility model will design a kind of dense water high temperature reverse-osmosis treated equipment exactly; It is stable, safe and reliable; Dense water be can further concentrate, thereby waste water reclamation rate, effective investment and running cost of reducing significantly improved through conventional two-part reverse-osmosis treated.
For realizing above-mentioned purpose, the dense water high temperature reverse-osmosis treated equipment that the utility model provided comprises dense water tank, surface exchanger, accurate filter, high temperature reverse osmosis membrane apparatus, energy recycle device, ultra density wastewater during case and clear water tanks.Said dense water tank links to each other with the dense water inlet of surface exchanger through lift pump; The dense water out of said surface exchanger links to each other with the water-in of accurate filter; The water outlet of said accurate filter links to each other with the dense water input terminus of high temperature reverse osmosis membrane apparatus through HPP; The water purification output terminal of said high temperature reverse osmosis membrane apparatus links to each other with the input terminus of clear water tanks; The ultra dense water output terminal of said high temperature reverse osmosis membrane apparatus links to each other with the dense water high-pressure inlet of energy recycle device; The dense water low tension outlet of said energy recycle device links to each other with ultra density wastewater during case, and the clear water low pressure inlet of said energy recycle device links to each other with the water outlet of accurate filter, and the clear water high-pressure outlet of said energy recycle device links to each other with the dense water input terminus of high temperature reverse osmosis membrane apparatus through topping-up pump.
As preferred version, be provided with dense heater water tank in the said dense water tank.Dense heater water tank can adopt electrically heated coil pipe or steam heating coil that the dense water in the dense water tank is heated, and also can adopt the steam-water mixture well heater of steam and water Hybrid Heating, and itself and surface exchanger are complementary.When surface exchanger is not enough to that dense water is heated to the desired operating temperature of high temperature reverse osmosis membrane apparatus; Can in time open dense heater water tank; The temperature all-the-time stable of guaranteeing dense water is in the scope that requires, thereby keeps the normal operation and the circulation of whole dense water high temperature reverse-osmosis treated equipment.
As preferred version, the water inlet pipeline section of said accurate filter is provided with the Scale inhibitors throwing device.The Scale inhibitors throwing device is used for the Scale inhibitors of requirement is added to dense water, to stop difficulty soluble salt ion and the organism fouling on membrane element in the dense water, guarantees the safe operation of high temperature reverse osmosis membrane apparatus.
As preferred version, the output terminal of said clear water tanks links to each other with the water-in of accurate filter through the r-o-flushing pump.Starting or stopping when safeguarding, through the flushing operation of r-o-flushing pump to the high temperature reverse osmosis membrane apparatus, the pollutant removal that the membrane element influent side is resulted in blockage easily is clean, thereby prolongs the working life of high temperature reverse osmosis membrane apparatus.
As preferred version, the pore size filter of said accurate filter is 5 microns.Accurate filter is claimed the strainer of ensuring public security again, and its 5 microns filter openings can effectively be removed pollutents such as particle in the water, impurity, suspended substance, thereby the protection reverse-osmosis membrane element is not stifled by dirt.
The utility model is to the characteristics of high temperature reverse osmosis membrane, and the dense water of using it for after the conventional r-o-is handled again, and its advantage applies is in following several respects:
One of which; After waste water was handled through the two-part of conventional former water reverse osmosis (RO) and dense water r-o-CRO, about 85%, total dissolved solidss concentration was about 30000ppm＜TDS≤80000ppm in the dense water of gained for its initial reclamation rate; Adopt the utility model that dense water is for further processing on this basis again; Can reclaim water purification wherein once more, thereby recycle-water resource to greatest extent is increased to 95～98% with whole Wastewater Recovery rate.
They are two years old; Because final ultra concentrated wastewater flow rate of discharging is very little; Only account for 2～5% of waste water total amount, thereby in the follow-up evaporate to dryness unit of wastewater zero discharge ZLD system, can reduce the steam consumption quantity or the electric consumption of evaporative crystallization; Reduce the one-time investment and the operation and maintenance cost of evaporation crystallization equipment, make waste liquid change the feature of environmental protection zero release on the complete meaning into by qualified discharge.
They are three years old; The high temperature reverse osmosis membrane apparatus of the utility model can be in 40 ℃≤T≤80 ℃ scope steady running; Molecule and ionic microscopic motion will aggravate in the dense water of high temperature this moment, and its solubility property is strengthened, and most difficulty soluble salts will move to the dissolving direction; Concentration difference phenomenon at high temperature membrane element influent side will weaken, and its antifouling property will be strengthened greatly; Owing to high temperature reverse-osmosis membrane element inherent characteristic, very small variation only can take place in its filtering accuracy under the high temperature simultaneously, and is little to the ratio of desalinization influence of its high temperature r-o-.Thereby can effectively avoid the difficulty soluble salt etc. in the dense salt waste water to pollute at the film surface deposition; Not only can guarantee stable equipment operation safety; And can under the low relatively situation of running cost, significantly improve the Wastewater Recovery rate, make the reuse that further concentrates of hc effluent come true.
Description of drawings
Fig. 1 is the technological process block-diagram of the dense water high temperature of the utility model reverse-osmosis treated equipment.
Fig. 2 is the structural representation of the dense water high temperature of the utility model reverse-osmosis treated equipment.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail.
Dense water high temperature reverse-osmosis treated equipment shown in the figure mainly is made up of parts such as dense heater water tank 1, dense water tank 2, lift pump 3, surface exchanger 4, Scale inhibitors throwing device 5, accurate filter 6, HPP 7, topping-up pump 8, energy recycle device 9, high temperature reverse osmosis membrane apparatus 10, ultra density wastewater during case 11, clear water tanks 12 and r-o-flushing pumps 13.Dense water heater 1 adopts the electrically heated coil pipe, is fixedly mounted in the dense water tank 2.Dense water tank 2 links to each other with the dense water inlet of the surface exchanger 4 of plank frame through lift pump 3; The dense water out of surface exchanger 4 links to each other with the water-in of accurate filter 6, and the thermal medium of surface exchanger 4 adopts the distillate or the steam of evaporate to dryness unit (vaporizer and mold) reuse.
The water outlet of accurate filter 6 links to each other with the dense water input terminus of high temperature reverse osmosis membrane apparatus 10 through HPP 7; The water purification output terminal of high temperature reverse osmosis membrane apparatus 10 links to each other with the input terminus of clear water tanks 12; The ultra dense water output terminal of high temperature reverse osmosis membrane apparatus 10 links to each other with the dense water high-pressure inlet of energy recycle device 9; The dense water low tension outlet of energy recycle device 9 links to each other with ultra density wastewater during case 11; The clear water low pressure inlet of energy recycle device 9 links to each other with the water outlet of accurate filter 6, and the clear water high-pressure outlet of energy recycle device 9 links to each other with the dense water input terminus of high temperature reverse osmosis membrane apparatus 10 through topping-up pump 8.
The pore size filter of above-mentioned accurate filter 6 is selected 5 microns parameter value for use.The water inlet of accurate filter 6 is provided with Scale inhibitors throwing device 5, and the medicine outlet of Scale inhibitors throwing device 5 links to each other with the water-in pipeline section that advances accurate filter 6.The output terminal of above-mentioned clear water tanks 12 links to each other through the water-in of r-o-flushing pump 13 with accurate filter 6.
The wastewater treatment situation that above-mentioned dense water high temperature reverse-osmosis treated equipment is used for after certain coal-fired plant flue gas desulfurization is following: after waste water conventional former water reverse osmosis (RO) of process and dense water r-o-CRO two-part are handled; Can obtain to account for the water purification of waste water gross weight 90%; Isolate the dense water that accounts for waste water gross weight 10% simultaneously, detect the total dissolved solidss concentration TDS=58000ppm～62000ppm that learns this dense water.At this moment, should introduce in the dense water tank 2 by dense water, can start dense heater water tank 1 as required and carry out thermal pretreatment.The dense water that comes out from dense water tank 2 gets into surface exchanger 4 through lift pump 3, is heated to 60～80 ℃ therein.Meanwhile, add Scale inhibitors through Scale inhibitors throwing device 5 to the dense water of flux surface interchanger 4, Scale inhibitors is selected ROHM for use, the concentration N=0.5 of Scale inhibitors～1.0ppm.Then, dense water gets into accurate filter 6, filters the back and gets into high temperature reverse osmosis membrane apparatus 10 through HPP 7, carries out the high temperature reverse-osmosis treated.Pressure 20bar≤P≤the 50bar of control high temperature reverse-osmosis treated, temperature-stable are in 60 ℃≤T≤80 ℃; The final dense water of excess of export that separates; The total dissolved solidss concentration TDS=110000～130000ppm of ultra dense water is learnt in detection, and the weight reduction of ultra dense water is to accounting for 3% of waste water gross weight.
Ultra dense water gets into energy recycle device 9 from the ultra dense water output terminal of high temperature reverse osmosis membrane apparatus 10, delivers to storage the ultra density wastewater during case 11 from the dense water low tension outlet of energy recycle device 9 behind the transducing that reduces pressure therein.Meanwhile, enter into energy recycle device 9, absorb therein behind the energy to get into and continue circulation in the high temperature reverse osmosis membrane apparatus 10 through topping-up pump 8 from the dense water of the part of accurate filter 6.
Directly be delivered to storage the clear water tanks 12 from the effusive water purification of water purification output terminal of high temperature reverse osmosis membrane apparatus 10.After the utility model processing, can accumulate the water purification that obtains to account for waste water gross weight 97%.In order to prolong the working life of high temperature reverse osmosis membrane apparatus 10; When being preferably in each startup or parking and safeguarding with the water purification in a part of clear water tanks 12 of r-o-flushing pump 13 suctions; Be used to remove the dirt on the high temperature reverse osmosis membrane apparatus 10 influent side membrane elements, avoid its obstruction.
Can also carry out evaporative crystallization to the ultra dense water that stores in the ultra density wastewater during case 11 handles; Because the ultra dense water yield is very little; The subsequent evaporation crystallizer can select for use all kinds to handle load less vaporizer, mold or moisture eliminator, and the dry slag of gained is buried by usual manner.Perhaps, ultra dense water is used for coal storing or flushing coal ash.Also can go into an open-air evaporation pond, fall, realize the waste water quasi-zero emission through the spontaneous evaporation at sunshine with surpassing concentrated water drainage.
Claims (9)
1. dense water high temperature reverse-osmosis treated equipment; Comprise dense water tank (2), surface exchanger (4), accurate filter (6), high temperature reverse osmosis membrane apparatus (10), energy recycle device (9), ultra density wastewater during case (11) and clear water tanks (12); It is characterized in that: said dense water tank (2) links to each other with the dense water inlet of surface exchanger (4) through lift pump (3); The dense water out of said surface exchanger (4) links to each other with the water-in of accurate filter (6); The water outlet of said accurate filter (6) links to each other with the dense water input terminus of high temperature reverse osmosis membrane apparatus (10) through HPP (7); The water purification output terminal of said high temperature reverse osmosis membrane apparatus (10) links to each other with the input terminus of clear water tanks (12); The ultra dense water output terminal of said high temperature reverse osmosis membrane apparatus (10) links to each other with the dense water high-pressure inlet of energy recycle device (9); The dense water low tension outlet of said energy recycle device (9) links to each other with ultra density wastewater during case (11), and the clear water low pressure inlet of said energy recycle device (9) links to each other with the water outlet of accurate filter (6), and the clear water high-pressure outlet of said energy recycle device (9) links to each other with the dense water input terminus of high temperature reverse osmosis membrane apparatus (10) through topping-up pump (8).
2. dense water high temperature reverse-osmosis treated equipment according to claim 1 is characterized in that: be provided with dense heater water tank (1) in the said dense water tank (2).
3. dense water high temperature reverse-osmosis treated equipment according to claim 1 and 2, it is characterized in that: the water-in pipeline section of said accurate filter (6) is provided with Scale inhibitors throwing device (5).
4. dense water high temperature reverse-osmosis treated equipment according to claim 1 and 2, it is characterized in that: the output terminal of said clear water tanks (12) links to each other through the water-in of r-o-flushing pump (13) with accurate filter (6).
5. dense water high temperature reverse-osmosis treated equipment according to claim 3, it is characterized in that: the output terminal of said clear water tanks (12) links to each other through the water-in of r-o-flushing pump (13) with accurate filter (6).
6. dense water high temperature reverse-osmosis treated equipment according to claim 1 and 2, it is characterized in that: the pore size filter of said accurate filter (6) is 5 microns.
7. dense water high temperature reverse-osmosis treated equipment according to claim 3, it is characterized in that: the pore size filter of said accurate filter (6) is 5 microns.
8. dense water high temperature reverse-osmosis treated equipment according to claim 4, it is characterized in that: the pore size filter of said accurate filter (6) is 5 microns.
9. dense water high temperature reverse-osmosis treated equipment according to claim 5, it is characterized in that: the pore size filter of said accurate filter (6) is 5 microns.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011201307019U CN202107589U (en) | 2011-04-28 | 2011-04-28 | Concentrated water high temperature reverse osmosis treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011201307019U CN202107589U (en) | 2011-04-28 | 2011-04-28 | Concentrated water high temperature reverse osmosis treatment equipment |
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| CN202107589U true CN202107589U (en) | 2012-01-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249434A (en) * | 2011-04-28 | 2011-11-23 | 武汉凯迪水务水处理有限公司 | Ultrahigh-recovery-rate waste water treatment process and concentrated water high-temperature reverse osmosis treatment equipment thereof |
| CN102531232A (en) * | 2011-12-20 | 2012-07-04 | 刘景洋 | In-situ regeneration method for pharmaceutical condensed water |
| CN106139903A (en) * | 2016-07-26 | 2016-11-23 | 国网辽宁省电力有限公司电力科学研究院 | For the device and method of solute rapid concentration in water |
| CN106892541A (en) * | 2017-04-18 | 2017-06-27 | 湖北百清环保技术有限公司 | Portable high-concentration waste liquor treating process and device |
-
2011
- 2011-04-28 CN CN2011201307019U patent/CN202107589U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249434A (en) * | 2011-04-28 | 2011-11-23 | 武汉凯迪水务水处理有限公司 | Ultrahigh-recovery-rate waste water treatment process and concentrated water high-temperature reverse osmosis treatment equipment thereof |
| CN102531232A (en) * | 2011-12-20 | 2012-07-04 | 刘景洋 | In-situ regeneration method for pharmaceutical condensed water |
| CN102531232B (en) * | 2011-12-20 | 2013-12-04 | 刘景洋 | In-situ regeneration method for pharmaceutical condensed water |
| CN106139903A (en) * | 2016-07-26 | 2016-11-23 | 国网辽宁省电力有限公司电力科学研究院 | For the device and method of solute rapid concentration in water |
| CN106892541A (en) * | 2017-04-18 | 2017-06-27 | 湖北百清环保技术有限公司 | Portable high-concentration waste liquor treating process and device |
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