CN204065048U - A kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit - Google Patents
A kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit Download PDFInfo
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- CN204065048U CN204065048U CN201420188793.XU CN201420188793U CN204065048U CN 204065048 U CN204065048 U CN 204065048U CN 201420188793 U CN201420188793 U CN 201420188793U CN 204065048 U CN204065048 U CN 204065048U
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- 238000001303 quality assessment method Methods 0.000 title claims abstract description 24
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- 239000013505 freshwater Substances 0.000 claims abstract description 105
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 76
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Abstract
A kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit, comprising: test water tank, the first reverse osmosis unit and digital control unit; Described first reverse osmosis unit is made up of reverse osmosis membrane assembly, has feedwater water inlet, dense water water delivering orifice and fresh water outlet mouth; This delivery spout is communicated with this test water tank by feed pipe, this feed pipe via line being disposed with supercharge pump, cartridge filter and high-pressure pump; This device be combination of sets box, can movement flexibly.This test unit can meet the requirement of multiple test method, can be operated the change realizing test method by simple valve transfer.Highly versatile, can use use water quality, the membranous system of on-the-spot actual water source and analog subscriber, carry out dynamic analog test targetedly.This device is provided with reliable in quality, in-line meter that precision is high, by digital control unit can live monitoring feedwater, dense water and fresh water the water-quality guideline such as pressure, water temperature, conductivity, pH, pressure reduction, flow.
Description
Technical field
The utility model relates to a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit.
Background technology
Reverse osmosis technology is most advanced and the most energy-conservation effective membrane separation technique now.Its principle is under the effect higher than solution osmotic pressure, these materials and water can not be separated according to other materials through semi-permeable diaphragm.Day by day serious along with water pollutions, reverse osmose pure-water technology has become one of the most rising technology solving shortage of water resources.
Reverse osmosis membrane forms dirt and sediment dirt can make water treatment system penalty, and need to change reverse osmosis membrane in advance.Accumulate in dirt on reverse osmosis membrane and sediment will cause permeance property to worsen, transit dose reduces, frequent shutdown, and water consumption increases and energy consumption increases.In order to slow down or suppress the dirt of film to be blocked up, ensure that counter-infiltration system runs long-term effectively, remove inorganic scale, organic dirt and biofouling on reverse osmosis membrane, anti-penetration wastewater disposal medicament must be added.Therefore, most important to reverse osmosis membrane water treatment agent evaluation method.
The evaluation method of now widely used reverse osmosis membrane antisludging agent comprises static evaluation method and dynamic evaluation approach.Static method is a kind of laboratory evaluation method, and feature is that equipment is simple, test period is short, to a certain degree can reflect the quality of performance of antisludging agent; Dynamic method is a kind of between laboratory and on-the-spot evaluation method, by simulated field water quality, utilizes small reverse osmosis device to evaluate reverse osmosis membrane antisludging agent.Measure water inlet, to produce in water and dense water the indexs such as crystallization ion concentration, equipment salt rejection rate, system pressure drop, water production rate, investigate the fouling condition of film.
At present, the set up work of China to anti-penetration wastewater disposal evaluation of scale inhibitor method is relatively less, substantially rest in application cycle water evaluating drug method, and commercially available circulating water antisludging agent assessment of performance device (static, dynamically) mainly last century, early eighties press that chemical industry standard develops, at reliability and the needs that functionally all cannot adapt to user, what such pole was unfavorable for reverse osmosis membrane antisludging agent correctly selects the development with new and effective reverse osmosis membrane antisludging agent.
Annual have novel trans to permeate scale inhibitor special appearance both at home and abroad, dosing dosage, applicable elements etc. that antisludging agent product description provides lack specific aim, there is relatively large deviation with the concrete condition of water quality of user, usually need monitoring and accumulation performance of antisludging agent data in the long-time running of user's reverse osmosis equipment.Although this is consistent with counter-infiltration system practical operation situation, these data are only for the concrete source quality in locality and specific membranous system, and the on-the-spot test time is long, reagent consumption amount is quite large, possesses certain risk.Therefore, user is objective, science, reliable evaluation performance of antisludging agent test unit to need research and development one to be applicable to, and most optimally selects antisludging agent to instruct user.
Utility model content
For the versatility of performance of antisludging agent, the complicacy of counter-infiltration system, and the limitation of existing evaluation means, the technical scheme that the utility model patent solves develops a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit.
In order to achieve the above object, the utility model by the following technical solutions: a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit, comprising: test water tank, the first reverse osmosis unit and digital control unit;
Described first reverse osmosis unit is made up of reverse osmosis membrane assembly, has feedwater water inlet, dense water water delivering orifice and fresh water outlet mouth; This delivery spout is communicated with this test water tank by feed pipe, this feed pipe be furnished with supercharge pump, cartridge filter and high-pressure pump successively via on line; This dense water water delivering orifice is communicated with this test water tank by concentrate recirculation pipe, this concentrate recirculation pipe is provided with concentrated stream amount circulating valve; This fresh water outlet mouth is communicated with this test water tank by fresh water recirculatory pipe, and this fresh water recirculatory pipe is provided with fresh-water flow circulating valve;
Dense water-feedwater differential manometer is provided with between the dense water water delivering orifice of this first reverse osmosis unit and feedwater water inlet;
Fresh water-feedwater differential manometer is provided with between the fresh water outlet mouth of this first reverse osmosis unit and feedwater water inlet;
The feedwater water inlet of this first reverse osmosis unit, dense water water outlet, fresh water outlet mouth place are equipped with flow control valve, flowmeter, pH meter, conductivity table, thermometer and tensimeter;
Described dense water-feedwater differential manometer, fresh water-feedwater differential manometer, flowmeter, pH meter, conductivity table, thermometer and tensimeter are electrically connected with described digital control unit respectively.
Compared to prior art, the beneficial effects of the utility model to be these devices be combination of sets is box, can movement flexibly.The preparation of the piping of this test unit, valve can meet ladder drainage, ladder method for dosing medicine, interval mend drainage, mend drainage continuously, the requirement of the 5 kinds of test methods such as dense water pairing comparision that feed water, and can be operated the change realizing 5 kinds of test methods by simple valve transfer.Highly versatile, can use the membranous system of on-the-spot actual water source and analog subscriber, carry out dynamic analog test targetedly.This device is provided with reliable in quality, in-line meter that precision is high, can live monitoring feedwater, dense water and fresh water the water-quality guideline such as pressure, water temperature, conductivity, pH, pressure reduction, flow.In-line meter is programmed by PLC, carries out data acquisition by certain hour interval, converts the electric signal of collection to achievement data, concentrates and outputs to computer, automatically show and record service data.This device monitoring index is responsive, data are reliable, simple to operate.And performance of reverse osmosis antisludging agent evaluated remarkablely turn to scale effect, also consider the microbial growth effect of antisludging agent simultaneously, dirtyly to block up with the reverse osmosis membrane that flocculating agent generates colloid sediment, the narrow all problems of water stream channel cause, the system failure etc., the operating condition of counter-infiltration system can be reflected truly.
Further, second reverse osmosis unit identical and in parallel with it with this first reverse osmosis unit structure is also comprised; The feedwater water inlet of the first reverse osmosis unit, dense water water delivering orifice, fresh water outlet mouth place are respectively equipped with switch valve; The feedwater water inlet of the second reverse osmosis unit, dense water water delivering orifice, fresh water outlet mouth place are respectively equipped with switch valve.This second reverse osmosis unit is connected in parallel on this first reverse osmosis unit, and functionally consistent with this first reverse osmosis unit, when one of them can not work, another one also can work, and assurance device can work at any time, can improve the redundancy of device.
Further, this dense water water delivering orifice is in communication with the outside by the outer comb of a dense water, and the outer comb of this dense water is provided with concentrated stream amount and arranges variable valve and dense water effluent stream gauge outward; This fresh water outlet mouth is in communication with the outside by the outer comb of a fresh water, and this fresh water drainpipe is provided with fresh-water flow and arranges variable valve and fresh water effluent stream gauge outward.Trench can be discharged to by outside the dense water of part or fresh water.
Further, the water supply tank be communicated with test water tank by filling pipe is also comprised; This filling pipe via line being furnished with successively small pump, water compensating valve and refill flow meter.For the supplementary feed when the feedwater testing water tank is not enough.
Further, be provided with small pump admission valve between water supply tank and the water inlet of small pump, the water delivering orifice of small pump is connected with water supply tank by moisturizing circulating valve, forms make-up water agitation cycle loop.
Further, be provided with test discharge valve of cistern for water-closet between test water tank and the water inlet of supercharge pump, the water delivering orifice of supercharge pump is connected by intensifier pumping cycle valve with test water tank, forms feedwater agitation cycle loop.
Further, the water delivering orifice of high-pressure pump is connected by a high-pressure pump circulating valve with test water tank, forms feedwater cycle of higher pressure loop.
Further, this concentrate recirculation pipe is provided with thermostat.Due in plant running process, supercharge pump and high-pressure pump can produce a certain amount of heat, cause closed circuit water temperature to raise, likely can affect course of reaction, impel sedimental generation, can the running temperature of stabilising arrangement by arranging thermostat.
Further, described thermostat is a refrigerator.
Further, also comprise be arranged on feedwater water inlet silt indexer up, it is electrically connected with digital control unit.
Accompanying drawing explanation
Fig. 1 is the connection diagram of a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit of the present utility model.
Referring to drawings and the specific embodiments, the utility model is described in further detail.
Embodiment
Please refer to Fig. 1, it is the connection diagram of a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit of the present utility model.A kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit of the present utility model comprises the first reverse osmosis unit 1, test water tank 2, water supply tank 3 and digital control unit.
Described first reverse osmosis unit 1 is made up of reverse osmosis membrane assembly, for feedwater is separated into dense water and fresh water, has the feedwater water inlet being respectively equipped with switch valve, dense water water delivering orifice and fresh water outlet mouth.Described test water tank 2 is communicated with the feedwater water inlet of this first reverse osmosis unit 1 by feed pipe L1.The dense water water delivering orifice of described first reverse osmosis unit 1 is communicated with this test water tank 2 by concentrate recirculation pipe L2, forms feedwater-dense water-flow circuit.The fresh water outlet mouth of described first reverse osmosis unit 1 is communicated with this test water tank 2 by fresh water recirculatory pipe L3, forms feedwater-fresh water closed circuit.Described water supply tank 3 is communicated with this test water tank 2 by filling pipe L4, for test water tank 2 complementary testing water.Described digital control unit is electrically connected with the instrument be arranged on pipeline, collects the operational factor of this device and monitors its running status.
The first liquid level sensor 21, first stirring apparatus 22 and test water tank exhaust-valve K1 is provided with in described test water tank 2.Described first liquid level sensor 21 is for the water yield of detection experiment water tank 2, and it is electrically connected with described digital control unit.The motor that described first stirring apparatus 22 comprises stirring vane and is connected with stirring vane, mixes for making test water.Described test water tank exhaust-valve K1 is used for emptying for the test water in test water tank 2.
The second liquid level sensor 31, second stirring apparatus 32 and moisturizing solenoid valve K2 is provided with in described water supply tank 3.Described second liquid level sensor 31 is for detecting the water yield of water supply tank 3, and it is electrically connected with described digital control unit.The motor that described second stirring apparatus 32 comprises stirring vane and is connected with stirring vane, mixes for making supplementing water.
Described feed pipe L1 tests discharge valve of cistern for water-closet K3, supercharge pump 4, cartridge filter water intaking valve K4, cartridge filter 5, cartridge filter outlet valve K5 and high-pressure pump 6 from being disposed with via line of feedwater water inlet of test water tank 2 to the first reverse osmosis unit 1.Described test discharge valve of cistern for water-closet K3 is for regulating the aquifer yield of test water tank 2.Described supercharge pump 4 is for increasing the pressure of current, and the feedwater between supercharge pump 4 and cartridge filter water intaking valve K4 is back to by intensifier pumping cycle valve K6 and tests water tank 2, forms feedwater agitation cycle loop.Described cartridge filter 5 is for carrying out pre-service to feedwater, and a filtration pressure difference meter Δ P1 in parallel between its water inlet with water delivering orifice, for detecting the pressure reduction of the feedwater by cartridge filter 5.Described high-pressure pump 6 is for increasing the pressure of feedwater, and the feedwater of flowing out this high-pressure pump 6 is back to test water tank 2 by high-pressure pump circulating valve K7, forms feedwater cycle of higher pressure loop.
Described concentrate recirculation pipe L2 is provided with concentrated stream amount circulating valve K8 and thermostat 7.This concentrated stream amount circulating valve K8 is for regulating the flow of the dense water being back to test water tank 2.Described thermostat 7 for the stable temperature being back to the dense water of test water tank 2, thus stablizes the running temperature of a kind of test unit of the present utility model; In the present embodiment, this thermostat 7 is refrigeratorys.Due in plant running process, supercharge pump and high-pressure pump can produce a certain amount of heat, cause closed circuit water temperature to raise, likely can affect course of reaction, impel sedimental generation, can the running temperature of stabilising arrangement by arranging thermostat.
Described fresh water recirculatory pipe L3 is provided with fresh-water flow circulating valve K9, for regulating the flow of the fresh water being back to test water tank 2.
Described filling pipe L4 from this water supply tank 3 to test water tank 2 be disposed with small pump admission valve K10, small pump 8, water compensating valve K11 and refill flow meter 33 via line.Described small pump admission valve K10 is for regulating the flow of the moisturizing from water supply tank 3 to small pump 8.Described small pump 8 is for increasing the pressure of moisturizing.Described water compensating valve K11 is for regulating the flow of the moisturizing entering test water tank 2.Moisturizing between this small pump 8 and this water compensating valve K11 is back to water supply tank 3 by moisturizing circulating valve K12, forms make-up water closed circuit.Described refill flow meter 33 is for detecting the flow of the moisturizing entering test water tank 2.
Described feedwater water inlet is provided with feed water flow regulating valve K13, feed meter 111, silts indexer 112 up, feedwater pH meter 113, feedwater conductivity table 114, feed temperature meter 115 and feed pressure table 116, and it is electrically connected with described digital control unit respectively.Described feed water flow regulating valve K13 is for regulating the flow of the feedwater entering feedwater water inlet.Described feed meter 111 is for measuring the flow of feedwater.Describedly silt indexer 112 up for what measure feedwater and silt index up.Described feedwater pH meter 113 is for detecting the pH value of feedwater.Described feedwater conductivity table 114 is for detecting to electrical conductivity of water.Described feed temperature meter 115 is for detecting the temperature of feedwater.Described feed pressure table 116 is for detecting the pressure of feedwater.
Described dense water water outlet is provided with concentrated stream adjustable valve K14, concentrated stream gauge 121, dense water pH meter 122, dense water conductivity table 123, dense coolant-temperature gage meter 124 and dense water pressure table 125, and it is electrically connected with described digital control unit respectively.Described concentrated stream adjustable valve K14 is for regulating the flow of produced dense water.Described concentrated stream gauge 121 is for measuring the flow of dense water.Described dense water pH meter 122 is for detecting the pH value of dense water.Described dense water conductivity table 123 is for detecting dense electrical conductivity of water.Described dense coolant-temperature gage meter 124 is for detecting the temperature of dense water.Described dense water pressure table 125 is for detecting the pressure of dense water.
Described fresh water outlet mouth place is provided with fresh-water flow variable valve K15, plain water flow meter 131, fresh water pH meter 132, fresh water conductivity table 133, fresh water thermometer 134 and fresh water tensimeter 135, and it is electrically connected with described digital control unit respectively.Described fresh-water flow variable valve K15 is for regulating the flow of produced fresh water.Described plain water flow meter 131 is for measuring the flow of fresh water.Described fresh water pH meter 132 is for detecting the pH value of fresh water.Described fresh water conductivity table 133 is for detecting light electrical conductivity of water.Described fresh water thermometer 134 is for detecting the temperature of fresh water.Described fresh water tensimeter 135 is for detecting the pressure of fresh water.
Be connected, for detecting the pressure reduction of dense water and feedwater by dense water-feedwater differential manometer Δ P2 between described feedwater water inlet with dense water water delivering orifice.
Described feedwater water inlet is connected, for detecting the pressure reduction of fresh water and feedwater by fresh water-feedwater differential manometer Δ P3 with between fresh water outlet mouth.
In addition, one end of the described dense water water delivering orifice also outer comb L5 of water dense with one is communicated with, and the outer comb l5 other end of dense water is in communication with the outside, make dense water by dense water outward comb L5 be discharged into the external world.The outer comb L5 of this dense water is provided with concentrated stream amount and arranges variable valve K16 and dense water effluent stream gauge 126 outward.Described concentrated stream amount arranges variable valve K16 outward for regulating the flow of the dense water of outer row.Described dense water effluent stream gauge 126 is for measuring the flow of the dense water of outer row.Described fresh water outlet mouth is also communicated with one end of comb L6 outside a fresh water, and the outer comb L6 other end of fresh water is in communication with the outside, and makes fresh water be discharged into the external world by the outer comb L6 of fresh water.The outer comb L6 of this fresh water is provided with fresh-water flow and arranges variable valve K17 and fresh water effluent stream gauge 136 outward.Described fresh-water flow arranges variable valve K17 outward for regulating the flow of the fresh water of outer row.Described fresh water effluent stream gauge 136 is for measuring the flow of the fresh water of outer row.
Further, the utility model also comprises second reverse osmosis unit 9 identical with this first reverse osmosis unit 1 structure, and it is connected in parallel on this first reverse osmosis unit 1.The feedwater water inlet of this second reverse osmosis unit 9, dense water water delivering orifice and fresh water outlet mouth are respectively equipped with switch valve.Particularly, the feedwater water inlet of two reverse osmosis units, dense water water delivering orifice and fresh water outlet mouth are connected by switch valve accordingly.This second reverse osmosis unit 9 is connected in parallel on this first reverse osmosis unit 1, and functionally consistent with this first reverse osmosis unit 1, when one of them can not work, another one also can work, and assurance device can work at any time, can improve the redundancy of device.By opening or closing switch valve, realizing the switching of two reverse osmosis units, also can adopt the mode that two reverse osmosis units run simultaneously.
The principle of work of a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit of the present utility model is as follows: be main pure water equipment with the first reverse osmosis unit 1 and the second reverse osmosis unit 9, water tank 2 will be tested, water supply tank 3, supercharge pump 4, cartridge filter 5, high-pressure pump 6, thermostat 7, small pump 8 grade is connected by piping, pipeline is installed high-precision on-line monitoring instrument: feed meter 111, silt indexer 112 up, feedwater pH meter 113, feedwater conductivity table 114, feed temperature meter 115 and feed pressure table 116, concentrated stream gauge 121, dense water pH meter 122, dense water conductivity table 123, dense coolant-temperature gage meter 124 and dense water pressure table 125, plain water flow meter 131, fresh water pH meter 132, fresh water conductivity table 133, fresh water thermometer 134 and fresh water tensimeter 135.By the simulation test of multifunctional dynamic test device, determine key index or the sensitive indicator of antisludging agent quality assessment.Use on-the-spot actual water source to carry out dynamic analog test, thus determine the arbitrating data of antisludging agent quality assessment.
The operating condition of test of this anti-penetration wastewater disposal antisludging agent quality assessment multifunction test device is as follows: the water in test water tank 2 flows to supercharge pump 4 by testing water tank 2 outlet valve, cartridge filter 5 is entered into by cartridge filter water intaking valve K4, after high-pressure pump 6 supercharging, regulate flow of inlet water by feed water flow regulating valve K13, enter reverse osmosis membrane assembly.The fresh water that separation obtains is by fresh-water flow variable valve K15 water production control flow, and according to testing requirements, part fresh water is circulated to test water tank 2 through fresh-water flow circulating valve K9; Also can be passed through fresh-water flow to arrange outward outside variable valve K17 and drain into the external world.Isolated dense water controls concentrated stream amount by concentrated stream adjustable valve K14, and according to testing requirements, the dense water of part is circulated to test water tank 2 through concentrated stream amount circulating valve K8; Also can be passed through concentrated stream amount to arrange outward outside variable valve K16 and drain into the external world.Wherein, high-pressure pump 6 go out saliva can by high-pressure pump circulating valve K7 be circulated to test water tank 2 in.Test preparation water in water supply tank 3, is shunted by small pump 8, and a part can circulate in meeting water supply tank 3 through moisturizing circulating valve K12, and a part, through water compensating valve K11, controls uninterrupted by refill flow meter 33 and enters in test water tank 2, with complementary testing water.Installation high precision differential pressure indicator is imported and exported, to monitor cartridge filter 5 operation conditions at cartridge filter 5.In-line meter is set before reverse osmosis membrane assembly water inlet: feed meter 111, silt indexer 112, feedwater pH meter 113, feedwater conductivity table 114, feed temperature meter 115 and feed pressure table 116 up.Reverse osmosis concentrated water and fresh water are separately positioned on line instrument: concentrated stream gauge 121, dense water pH meter 122, dense water conductivity table 123, dense coolant-temperature gage meter 124, dense water pressure table 125 and fresh-water flow variable valve K15, plain water flow meter 131, fresh water pH meter 132, fresh water conductivity table 133, fresh water thermometer 134 and fresh water tensimeter 135 are to monitor dense water and fresh water water quality respectively.In addition, respectively in reverse osmosis membrane assembly water inlet with dense water, arrange high precision differential pressure indicator between reverse osmosis membrane fresh water and dense water.The signal of in-line meter collection controls through PLC, concentrates and exports computer to, automatically carry out monitoring index data record.
The preparation of the piping of a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit of the present utility model, valve can meet ladder drainage, ladder method for dosing medicine, interval mend drainage, mend drainage continuously, the requirement of the 5 kinds of test methods such as dense water pairing comparision that feed water, and the simple valve transfer passed through can operate the change realizing 5 kinds of test methods.
When adopting device of the present utility model to realize ladder drainage, open this concentrated stream amount circulating valve K8 and fresh-water flow circulating valve K9, to ensure the recovery of certain dense water and fresh water, and test water tank 2 by regulating concentrated stream adjustable valve K14 and fresh-water flow variable valve K15 to discharge reverse osmosis freshwater and dense water off and on and be back to, to improve inlet water tank water quality ion concentration, increase membranous system crystallization ion concentration, accelerate film fouling, blocking trend.By the pressure, pressure reduction, conductivity, pH value, water quality content etc. of on-line monitoring instrument monitoring feedwater, fresh water and dense water, investigate the fouling condition of film, the index such as salt rejection rate, system pressure drop, water production rate of counter-infiltration system.
When adopting device of the present utility model to realize ladder method for dosing medicine, close this concentrated stream amount circulating valve K8 and fresh-water flow circulating valve K9, do not circulate reverse osmosis produced water and dense water, and compartment of terrain supplements the test water of high concentration at test water tank 2, improve influent quality ion concentration, realize high concentration ratio water quality and run.Supplement water quality ion concentration different, the concentration rate of test is different, is monitored the change etc. of the pressure of reverse osmosis feedwater, fresh water and dense water under corresponding concentration rate, pressure reduction, conductivity, pH value, water quality content by on-line monitoring instrument.
When adopting device of the present utility model to realize interval benefit drainage, open this concentrated stream amount circulating valve K8 and fresh-water flow circulating valve K9 off and on, the dense water of generation and fresh water are back to and test water tank 2, supplement the test water of high concentration at test water tank 2 in compartment of terrain simultaneously, improve influent quality ion concentration, realize high concentration ratio water quality and run.The change etc. of the pressure of reverse osmosis feedwater, fresh water and dense water under corresponding concentration rate, pressure reduction, conductivity, pH value, water quality content is monitored by on-line monitoring instrument.
When adopting device of the present utility model to realize mending drainage continuously, open this concentrated stream amount circulating valve K8 and fresh-water flow circulating valve K9 incessantly, the dense water of generation and fresh water are back to and test water tank 2, simultaneously in the test water of supplementing high concentration incessantly at test water tank 2, improve influent quality ion concentration, realize high concentration ratio water quality and run.The change etc. of the pressure of reverse osmosis feedwater, fresh water and dense water under corresponding concentration rate, pressure reduction, conductivity, pH value, water quality content is monitored by on-line monitoring instrument.
When adopting device of the present utility model to realize mending drainage continuously, open this concentrated stream amount circulating valve K8 and fresh-water flow circulating valve K9, and simulated production actual operating state runs continuously, feedwater and the equal circulating reflux of dense water are in test water tank 2.By the change etc. of the pressure of reverse osmosis feedwater, fresh water and dense water, pressure reduction, conductivity, pH value, water quality content in the on-line monitoring instrument monitoring cycle of operation.
When carrying out a certain test method of dynamic test, contrasting the difference with or without adding antisludging agent, antisludging agent additive capacity, producing the change of the monitoring indexes such as water conductivity, water production rate, system pressure difference.When running a period of time, dense water side ion concentration is high, and ion concentration is long-pending much larger than solubility constant, and scaling tendency increases, and produce water conductivity and increase, namely salt rejection rate declines; Unit interval water production rate declines; System pressure difference increases.If it is excellent to add antisludging agent scale-inhibiting properties, effectively can increase dissociated ion content in water, suppress the generation of crystal, so, in the identical cycle of operation, the change of producing the indexs such as water conductivity, salt rejection rate, unit interval water production rate, system pressure difference is all slower.Otherwise, by comparing the variation tendency of producing the indexs such as water conductivity, salt rejection rate, unit interval water production rate, system pressure difference, the quality of anti-penetration wastewater disposal performance of antisludging agent also intuitively can be judged significantly.
Even if under normal operating conditions, reverse osmosis membrane also can gradually by the inorganics in dense water, microorganism, metal hydroxides, colloid and insoluble organism etc. pollute.When film surface deposits is accumulated to a certain degree, water production rate, salt rejection rate will drop to a certain limit value, and system pressure drop increases.Change water supply source water quality and flow, regulate anti-penetration wastewater disposal additive amount of medicament, the dynamic similation carrying out different operating mode runs, to select in reverse osmosis membrane assembly operating condition parameter one group can survey key index or sensitive indicator surveys variable for straight (connecing inspection), with reverse osmosis membrane system Fouling Properties parameter for target (by estimating) variable, intelligent algorithm is utilized to set up the quantitative correlation formula (mathematical model) of the test figure of two class variables, room or on-the-spot monitoring and data processing continuously by experiment, analyze, obtain the Fouling Properties of believable anti-penetration wastewater disposal antisludging agent and corresponding water quality, thus compare quality and the scale inhibition limit of different performance of antisludging agent exactly, for anti-penetration wastewater disposal scale inhibitor performance evaluation, medicament is preferred, dosage interpolation etc. provides reliable data.
Compared to prior art, the beneficial effects of the utility model to be these devices be combination of sets is box, can movement flexibly.The preparation of the piping of this test unit, valve can meet ladder drainage, ladder method for dosing medicine, interval mend drainage, mend drainage continuously, the requirement of the 5 kinds of test methods such as dense water pairing comparision that feed water, and the simple valve transfer passed through can operate the change realizing 5 kinds of test methods.Highly versatile, can use the membranous system of on-the-spot actual water source and analog subscriber, carry out dynamic analog test targetedly.This device is provided with reliable in quality, in-line meter that precision is high, can live monitoring feedwater, dense water and fresh water the water-quality guideline such as pressure, water temperature, conductivity, pH, pressure reduction, flow.In-line meter is programmed by PLC, carries out data acquisition by certain hour interval, converts the electric signal of collection to achievement data, concentrates and outputs to computer, automatically show and record service data.This device monitoring index is responsive, data are reliable, simple to operate.And performance of reverse osmosis antisludging agent evaluated remarkablely turn to scale effect, also consider the microbial growth effect of antisludging agent simultaneously, dirtyly to block up with the reverse osmosis membrane that flocculating agent generates colloid sediment, the narrow all problems of water stream channel cause, the system failure etc., the operating condition of counter-infiltration system can be reflected truly.
In addition, the scale effect of this device not only not single investigation antisludging agent, also considers the microbial growth effect of antisludging agent simultaneously, dirtyly to block up with the reverse osmosis membrane that flocculating agent generates colloid sediment, the narrow all problems of water stream channel cause, the system failure etc.Thermostat 7 in device can reduce the impact of weather temperature effectively, eliminates the heat that system water cyclic process produces, can simulate the operating condition of counter-infiltration system truly.Online measuring instrument can be added flexibly, as increased monitoring equipment---the oxidation-reduction potential instrument etc. of monitoring microbial growth, by the data record that in-line meter is long-term, set up the mathematical model that antisludging agent kind, dosage etc. are stifled with counter-infiltration system dirt, thus many-sided investigate antisludging agent scale-inhibiting properties, with coagulant, the compatible performance of flocculating agent, grow microbial performance and medicament long-term operation performance, and then evaluate the performance of medicament, be convenient to user and select suitable anti-penetration wastewater disposal medicament and additive capacity according to source quality and concrete membranous system.
Claims (10)
1. an anti-penetration wastewater disposal antisludging agent quality assessment test unit, is characterized in that: comprise test water tank, the first reverse osmosis unit and digital control unit;
Described first reverse osmosis unit is made up of reverse osmosis membrane assembly, has feedwater water inlet, dense water water delivering orifice and fresh water outlet mouth; This delivery spout is communicated with this test water tank by feed pipe, this feed pipe be furnished with supercharge pump, cartridge filter and high-pressure pump successively via on line; This dense water water delivering orifice is communicated with this test water tank by concentrate recirculation pipe, this concentrate recirculation pipe is provided with concentrated stream amount circulating valve; This fresh water outlet mouth is communicated with this test water tank by fresh water recirculatory pipe, and this fresh water recirculatory pipe is provided with fresh-water flow circulating valve;
Dense water-feedwater differential manometer is provided with between the dense water water delivering orifice of this first reverse osmosis unit and feedwater water inlet;
Fresh water-feedwater differential manometer is provided with between the fresh water outlet mouth of this first reverse osmosis unit and feedwater water inlet;
The feedwater water inlet of this first reverse osmosis unit, dense water water outlet, fresh water outlet mouth place are equipped with flow control valve, flowmeter, pH meter, conductivity table, thermometer and tensimeter;
Described dense water-feedwater differential manometer, fresh water-feedwater differential manometer, flowmeter, pH meter, conductivity table, thermometer and tensimeter are electrically connected with described digital control unit respectively.
2. a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit according to claim 1, is characterized in that: also comprise second reverse osmosis unit identical and in parallel with it with this first reverse osmosis unit structure; The feedwater water inlet of the first reverse osmosis unit, dense water water delivering orifice, fresh water outlet mouth place are respectively equipped with switch valve; The feedwater water inlet of the second reverse osmosis unit, dense water water delivering orifice, fresh water outlet mouth place are respectively equipped with switch valve.
3. a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit according to claim 2, it is characterized in that: this dense water water delivering orifice is in communication with the outside by the outer comb of a dense water, the outer comb of this dense water is provided with concentrated stream amount and arranges variable valve and dense water effluent stream gauge outward; This fresh water outlet mouth is in communication with the outside by the outer comb of a fresh water, and this fresh water drainpipe is provided with fresh-water flow and arranges variable valve and fresh water effluent stream gauge outward.
4. a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit according to claim 3, is characterized in that: also comprise the water supply tank be communicated with test water tank by filling pipe; This filling pipe via line being furnished with successively small pump, water compensating valve and refill flow meter.
5. a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit according to claim 4, it is characterized in that: between water supply tank and the water inlet of small pump, be provided with small pump admission valve, the water delivering orifice of small pump is connected with water supply tank by moisturizing circulating valve, forms make-up water agitation cycle loop.
6. a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit according to claim 5, it is characterized in that: between test water tank and the water inlet of supercharge pump, be provided with test discharge valve of cistern for water-closet, the water delivering orifice of supercharge pump is connected by intensifier pumping cycle valve with test water tank, forms feedwater agitation cycle loop.
7. a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit according to claim 6, is characterized in that: the water delivering orifice of high-pressure pump is connected by a high-pressure pump circulating valve with test water tank, forms feedwater cycle of higher pressure loop.
8. a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit according to claim 7, is characterized in that: this concentrate recirculation pipe is provided with thermostat.
9. a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit according to claim 8, is characterized in that: described thermostat is a refrigerator.
10. a kind of anti-penetration wastewater disposal antisludging agent quality assessment test unit according to claim 1, is characterized in that: also comprise be arranged on feedwater water inlet silt indexer up, it is electrically connected with digital control unit.
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| CN109144150A (en) * | 2018-11-01 | 2019-01-04 | 西安热工研究院有限公司 | High temperature and pressure test device water quality automatic control system and application method |
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2014
- 2014-04-17 CN CN201420188793.XU patent/CN204065048U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2021507413A (en) * | 2017-12-22 | 2021-02-22 | グローバル・ライフ・サイエンシズ・ソリューションズ・ユーエスエー・エルエルシー | Methods, equipment, systems and computer program products related to the filtration process |
| JP7301443B2 (en) | 2017-12-22 | 2023-07-03 | グローバル・ライフ・サイエンシズ・ソリューションズ・ユーエスエー・エルエルシー | Methods, apparatus, systems and computer program products related to filtration processes |
| CN109144150A (en) * | 2018-11-01 | 2019-01-04 | 西安热工研究院有限公司 | High temperature and pressure test device water quality automatic control system and application method |
| CN114733359A (en) * | 2022-06-15 | 2022-07-12 | 金科环境股份有限公司 | Method for intelligently controlling scale inhibitor feeding of reverse osmosis system |
| CN115364675A (en) * | 2022-09-16 | 2022-11-22 | 同济大学 | Method and equipment for testing performance of drinking water nanofiltration membrane scale inhibitor |
| CN115364675B (en) * | 2022-09-16 | 2024-06-04 | 同济大学 | Device for testing scale inhibition performance of scale inhibitor of nanofiltration membrane of drinking water and application method |
| CN117804768A (en) * | 2024-03-01 | 2024-04-02 | 佛山市芯耀环保科技有限公司 | Service life testing method and system for waste water valve |
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