Boiler feed systemTechnical field
The utility model is related to water-treatment technology field, more particularly to a kind of boiler feed system.
Background technology
Boiler is a kind of energy conversion for bearing certain operating pressure, and its effect is exactly effectively aflameizationCan be converted to heat energy, or the form of energy needed for being converted heat into other productions and lived by relevant device again, for a long timeSince all play an important role in production and resident living.The water source of boiler is usually running water, due in running waterContaining impurity, so in actual use typically using boiler feed system to raw water（Generally running water）Carry out pre- placeReason.
Authorization Notice No. is CN201935170U, authorized announcement date is that in August, 2011 Chinese patent of 17 days discloses oneBoiler feed system, including steam boiler are planted, the water inlet of steam boiler is connected with water inlet pipe by feed pump, set on water inlet pipeNa-ion exchanger is equipped with, steam boiler is connected by heat-exchanger pump with hot-water cylinder.The operation principle of Na-ion exchanger is：Ca2+、Mg2+Swap with ion exchange resin, the Ca in running water2+、Mg2+By Na+Exchange, make to be difficult to form carbonate scale in waterAnd sulfate scale, so as to obtain softened water.
The deficiencies in the prior art part be, in running water contain suitable impurity, its from running water inlet to sodium fromThe accumulation of an impurity is had in pipeline of sub- exchanger etc., if these impurity are removed not in time will affect boiler justOften supply water.
Utility model content
The purpose of this utility model is to provide a kind of boiler feed system, which solves the problem of running water impurities accumulation,Have the advantages that to clean impurity, reduce impurities accumulation.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of boiler feed system, including original water inlet and boiler feed water outlet, the original water inlet and boiler feed water go outIt is disposed between mouthful and is connected with the active carbon filter of reducing agent chemicals dosing plant, high-pressure pump, reverse osmosis unit, decarbonizing tower, mixedClose ion-exchanger and resin catcher；The liquid outlet of the reverse osmosis unit has concentrated water case, the concentrated water by pipeline connectionThe liquid outlet of case is connected by counter-flushing pipeline with the liquid outlet of active carbon filter, and the counter-flushing pipeline is provided with for inciting somebody to actionBackwashing pump in liquid pump in concentrated water case to active carbon filter.
Using said structure, partial impurities are separated out after raw water and reducing agent reaction, this partial impurities and raw water are carried originallyImpurity be tightly held by activated carbon, then water carries out counter-infiltration pro desalting process under high pressure pumping action into reverse osmosis unit, thenRemoving carbon dioxide process is carried out in decarbonizing tower, ion exchange is carried out in mixed ion exchanger and resin catcher, water is improvedPurity；Additionally, the water Jing backwashing pumps of Jing reverse-osmosis treateds equipment to active carbon filter and its before, pipeline are carried out insteadRinse, reduce the accumulation of impurity, reduce impact of the impurities accumulation to water treatment efficiency.
More preferably：Cartridge filter is provided between the active carbon filter and high-pressure pump.
Using said structure, the adsorbable impurity particle diameter of cartridge filter is less than the adsorbable impurity grain of active carbon filterFootpath, it can again adsorb to the impurity in water, reduce impact of the impurity to high-pressure pump.
More preferably：The cartridge filter, high-pressure pump and reverse osmosis unit correspond setting and its quantity is equalFor two, the quantity of the concentrated water case is two；The liquid outlet of first reverse osmosis unit is by pipeline and first instituteState the inlet connection of concentrated water case, the liquid outlet of first concentrated water case by pipeline and with second reverse osmosis unitThe connection of corresponding cartridge filter, the liquid outlet of second reverse osmosis unit is by pipeline and second concentrated water caseInlet is connected；The liquid outlet connection of the counter-flushing pipeline and second concentrated water case.
Using said structure, backwash water is carried out repeatedly progressively to process, improve its purity, reduced its backwash pair and setStandby and pipeline causes the possibility of secondary pollution.
More preferably：Oxidant dosing dress is connected with cartridge filter corresponding with second reverse osmosis unitPut, on cartridge filter corresponding with first reverse osmosis unit antisludging agent chemicals dosing plant is connected with.
Using said structure, some soluble ions might have impurity precipitation, energy after water and oxidant, antisludging agent effectFurther reduce the salt in water；And different medicaments are adopted, primarily to improving the coverage rate of impurity.
More preferably：By pipeline and for cleaning the clear of reverse osmosis unit on the liquid outlet of the reverse osmosis unitThe inlet connection of tank-washer, the liquid outlet of the cleaning case also connects setting with the liquid outlet of reverse osmosis unit.
Using said structure, the water Jing first of Jing counter-infiltrations pro desalting process collects passage and is pumped in cleaning case, temporarilyStop counter-infiltration pro desalting treatment process, then using cleaning pump by the water in cleaning case with reverse osmosis unit → high-pressure pump → security personnelThe order of filter is cleaned to this section of pipeline and equipment.
More preferably：It is provided between the decarbonizing tower and mixed ion exchanger for collecting the process of Jing decarbonizing towersThe intermediate water tank of water.
Using said structure, intermediate water tank can be processed decarbonizing tower and mixed ion exchanger and do a buffered, be madeIt according to demand introduces middle water in mixed ion exchanger.
More preferably：The raw water box for storing raw water is provided between the original water inlet and active carbon filter.
Using said structure, raw water box can carry out temporary process to raw water, and raw water is staticly settled in it can remove partThe gases such as the carbon dioxide in suspension, and raw water are reduced during placement, reduce the difficulty of water process.
More preferably：The resin catcher and boiler feed water outlet between be provided with also be sequentially provided with sweet-water tank andIt is connected with the ammonifying device of ammonia-feeding pipe.
Using said structure, the water Jing after resin catcher process further can be carried out precipitating at desalination by sweet-water tankReason, plus ammonia treatment can be with the pH of adjusting water outlet, corrosion of the reduction carbon dioxide to pipeline.
More preferably：It is connected with the pipeline for being passed through alkali lye and acid solution on the mixed ion exchanger respectively.
Using said structure, line replacement, regeneration are entered to the resin in mixed ion exchanger, improve its service life and waterTreatment effeciency.
More preferably：Gas tank is connected with the mixed ion exchanger.
Using said structure, accelerate the displacement of alkali lye or acid solution and resin, accelerate its reproduction speed；Simultaneously its to mixing fromSub- exchanger carries out gas shield, reduces the possibility that foreign gas are entered in it, improves the purity of the water being processed and containsAmount.
In sum, the utility model has the advantages that：
1st, the purity and content of water is further enhanced；
2nd, pipeline and the self-cleaning of equipment energy or regeneration certainly, high degree of automation；
3rd, the acid solution and alkali lye in system is focused on, environmental protection.
Description of the drawings
Fig. 1 is the structural representation of embodiment, shows reverse osmosis unit and its equipment connecting relation before；
Fig. 2 is the structural representation of embodiment, shows the equipment connecting relation after reverse osmosis unit.
In figure, 1, raw water box；201st, active carbon filter；202nd, reducing agent chemicals dosing plant；203rd, counter-flushing liquid import；301st, the first cartridge filter；302nd, the second cartridge filter；303rd, the 3rd cartridge filter；401st, the first high-pressure pump；402、Second high-pressure pump；403rd, the 3rd high-pressure pump；501st, the first reverse osmosis unit；502nd, the second reverse osmosis unit；503rd, the 3rd reverse osmosisSaturating device；601st, decarbonizing tower；602nd, intermediate water tank；701st, mixed ion exchanger；702nd, resin catcher；703rd, demineralized waterCase；8th, antisludging agent chemicals dosing plant；901st, the first concentrated water case；902nd, the second concentrated water case；10th, first collects passage；11st, activated carbon mistakeFilter device；12nd, oxidant chemicals dosing plant；13rd, adhesive mud remover chemicals dosing plant；14th, cooling line；15th, cleaning case；16th, cleanPump；17th, gas tank；18th, ammonifying device；19th, second collects passage；20th, boiler feed water outlet；21st, alkali car；22nd, alkali pump is unloaded；23rd, high-order alkali storagetank；24th, alkali batch meter；25th, alkali injector；26th, alkali lye sampling test point；27th, sour car；28th, unload acid pump；29th, high moor storagetank；30th, acid batch meter；31st, Acid injector；32nd, acid solution sampling test point；33rd, acid-fume absorber；34th, inAnd pond；35th, counter-flushing pipeline；36th, backwashing pump.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility modelField technique personnel can make as needed the modification without creative contribution after this specification is read to the present embodiment, butAs long as all being protected by Patent Law in protection domain of the present utility model.
Embodiment：A kind of boiler feed system, as shown in figure 1, including the original water inlet, raw water box 1, activity that set graduallyCarbon filter 201, cartridge filter, high-pressure pump, reverse osmosis unit, decarbonizing tower 601, intermediate water tank 602, mixed ion exchanger701st, resin catcher 702, sweet-water tank 703 and boiler feed water outlet 20.Wherein, valve in pipeline etc. routine components and parts notMark.
With reference to Fig. 1, raw water box 1 is provided with two inlets and a liquid outlet.One inlet of raw water box 1 is raw waterImport, its another inlet connects setting with the liquid outlet of reverse osmosis unit.Active carbon filter 201 is provided with two inletsWith a liquid outlet.One inlet of active carbon filter 201 is connected and the section pipe by pipeline with the liquid outlet of raw water box 1The reducing agent chemicals dosing plant 202 for adding reducing agent to active carbon filter 201 by pumping, its another inlet are connected with roadFor counter-flushing liquid import 203.
With reference to Fig. 1, cartridge filter, high-pressure pump and reverse osmosis unit have three, for ease of illustrating, three are ensured public securityFilter is respectively designated as the first cartridge filter 301, the second cartridge filter 302 and the 3rd cartridge filter 303, high by threePress pump is respectively designated as the first high-pressure pump 401, the second high-pressure pump 402 and the 3rd high-pressure pump 403, and three reverse osmosis units are distinguishedIt is named as the first reverse osmosis unit 501, the second reverse osmosis unit 502 and the 3rd reverse osmosis unit 503.
With reference to Fig. 1, the inlet of the first cartridge filter 301 is connected by the liquid outlet of pipeline and active carbon filter 201It is connected with the antisludging agent chemicals dosing plant 8 for adding antisludging agent to the first cartridge filter 301 by pumping on logical and this section of pipeline, firstThe inlet connection of the liquid outlet of cartridge filter 301 and the first high-pressure pump 401 is arranged.First reverse osmosis unit 501 is provided with oneIndividual inlet and two liquid outlets.The inlet of the first reverse osmosis unit 501 is by pipeline and the liquid outlet of the first high-pressure pump 401Connection is arranged.One liquid outlet of the first reverse osmosis unit 501 and the inlet of the first concentrated water case 901 are set by pipeline connectionPut, its another liquid outlet and first collects the connection setting of passage 10.
With reference to Fig. 1, the liquid outlet of the first concentrated water case 901 is connected with the inlet of active carbon filtering device 11 by pipeline and setPut and be connected with this section of pipeline the oxidant chemicals dosing plant 12 for adding oxidant to active carbon filtering device 11 by pumping.SecondThe inlet of cartridge filter 302 connects setting by pipeline with the liquid outlet of active carbon filtering device 11, and its liquid outlet passes throughThe inlet connection of pipeline and the second high-pressure pump 402 is arranged.Second reverse osmosis unit 502 is provided with one with the second high-pressure pump 402Liquid outlet connection arrange inlet and two liquid outlets, one of liquid outlet and the second concentrated water case 902 inlet lead toThe inlet connection for crossing pipeline connection setting, another liquid outlet and the 3rd cartridge filter 303 is arranged and connected on this section of pipelineHave and adhesive mud remover, the adhesive mud remover chemicals dosing plant 13 of antisludging agent and resistance are added to the 3rd cartridge filter 303 by pumpingDirty agent chemicals dosing plant 8.
With reference to Fig. 1, the inlet of the 3rd high-pressure pump 403 is connected by the liquid outlet of pipeline and the 3rd cartridge filter 303,The inlet connection that its inlet passes through pipeline and the 3rd reverse osmosis unit 503.3rd reverse osmosis unit 503 is provided with two and goes out liquidMouthful, the inlet of one of liquid outlet and the second concentrated water case 902 is arranged by pipeline connection, its another liquid outlet and firstCollect the connection of passage 10 to arrange.Counter-flushing liquid import 203 on the liquid outlet and active carbon filter 201 of the second concentrated water case 902The connection of Jing counter-flushing pipelines 35 is arranged and led on the second concentrated water case 902 and is provided with cooling line 14, and counter-flushing pipeline 35 is provided with useBackwashing pump 36 in by the water pump of the second concentrated water case 902 to active carbon filter 201.
With reference to Fig. 1, first collects passage 10 is provided with two branch pipe(tube)s, and one of them leads to the inlet of cleaning case 15,And another leads to decarbonizing tower 601（With reference to Fig. 2）.The liquid outlet of cleaning case 15 is provided with for by the inversely conveying of the liquid in itCleaning pump 16, the order of reverse conveying is reverse osmosis unit → high-pressure pump → cartridge filter.
With reference to Fig. 2, in being connected with the liquid outlet of decarbonizing tower 601 for collecting the middle water Jing after the process of decarbonizing tower 601Between water tank 602.Mixed ion exchanger 701 is provided with four inlets, a liquid outlet and an air inlet, and one of them entersLiquid mouth connects setting with the liquid outlet of intermediate water tank 602, and inlet is used to being passed through into it acid solution of wash-out and anotherIndividual inlet is used to be passed through the alkali lye of wash-out to it into, its liquid outlet connect with the inlet of resin catcher 702 arrange andIts air inlet connects setting with the gas outlet of gas tank 17.
With reference to Fig. 2, the inlet of sweet-water tank 703 connects setting and its liquid outlet with the liquid outlet of resin catcher 702Setting is connected with the inlet of ammonifying device 18 by pipeline.Ammonifying device 18 is provided with two inlets and a liquid outlet, itsIn inlet be used to being passed through the ammonia-feeding pipe and its liquid outlet of ammonia and second and collect the connection of passage 19 and arrange.Second collects passage19 are provided with two branch pipe(tube)s, and one of them leads to boiler feed water outlet 20 and another leads to the pipeline for being passed through acid solution and alkali lyeIn.
With reference to Fig. 2, the alkali lye Jing in alkali car 21 unloads alkali pump 22 and is transported to preservation in high-order alkali storagetank 23.Alkali batch meter24 inlet connects setting by pipeline with the liquid outlet of high-order alkali storagetank 23, and its liquid outlet is by pipeline and alkali injector25 connections are arranged, and are come from the alkali lye of alkali batch meter 24 and are come from second and collect the water of passage 19 in before alkali injector 25Then again Jing alkali injector 25 is sprayed into mixed ion exchanger 701 for mixing in the pipeline at end.Alkali injector 25 to mixing fromAlkali lye sampling test point 26 is provided with pipeline between sub- exchanger 701.Acid solution Jing unload acid pump 28 in sour car 27 is transported toPreserve in high moor storagetank 29.The inlet of acid batch meter 30 is connected with the liquid outlet of high moor storagetank 29 by pipeline and setPut, its liquid outlet connects setting by pipeline with Acid injector 31, come from the acid solution of acid batch meter 30 and come from the second remittanceThe water of overall channel 19 is in the mixing in the pipeline of the front end of Acid injector 31 and then again Jing Acid injectors 31 are sprayed to hybrid ionicIn exchanger 701.Acid injector 31 is provided with acid solution sampling test point 32 into the pipeline between mixed ion exchanger 701.It is highAcid-fume absorber 33 is connected with the sour storagetank 29 in position, the inlet of acid-fume absorber 33 is connected with water.High-order alkali storagetank 23, alkali meterNeutralization pond 34, neutralized pond are connected with by pipeline on measuring tank 24, high moor storagetank 29, acid batch meter 30 and acid-fume absorber 3334 process and qualified liquid can be discharged by pipeline.
Water treatment procedure：Raw water Jing original water inlet enters raw water box 1, its storage and partial impurities precipitation in raw water box 1,Then it is pumped in active carbon filter 201, and partial impurities are separated out after the reaction of raw water and reducing agent, the impurity of precipitation andIts original impurity is tightly held by activated carbon；After the raw water of Jing charcoal absorptions be pumped in the first cartridge filter 301, waterAdsorbed by the first cartridge filter 301 with partial impurities are separated out after antisludging agent reaction, the water of the process of the first cartridge filters of Jing 301Carry out counter-infiltration pro desalting process in the first reverse osmosis unit 501 in the case where the first high-pressure pump 401 is acted on, to reduce water in saltAmount；Also may be selected that the first concentrated waters of water Jing case 901 is imported into active carbon filtering device 11 after the process of first time counter-infiltration pro desaltingIt is interior, partial impurities are separated out after water and oxidant reaction and is adsorbed by active carbon filtering device 11, then water enters the second security personnel and filtersFilter in device 302, then water carries out counter-infiltration pro desalting under the effect of the second high-pressure pump 402 in the second reverse osmosis unit 502Process, the salt amount in water is reduced again；Can also further select to be directed water into after second counter-infiltration pro desalting is processed theIn three cartridge filters 303, separate out partial impurities after water and antisludging agent, adhesive mud remover reaction and the impurity was ensured public security by the 3rdFilter 303 adsorbs, and then water carries out counter-infiltration pro desalting under the effect of the 3rd high-pressure pump 403 in the 3rd reverse osmosis unit 503Process, greatly reduce the salt amount in water；Jing counter-infiltrations pro desalting process water sequentially enter decarbonizing tower 601, intermediate water tank 602,Mixed ion exchanger 701, resin catcher 702, sweet-water tank 703 and ammonifying device 18 carry out deep desalting treatment, processWater Jing boiler feed waters outlet 20 afterwards enters later procedure.
The detergent line course of work：Using backwashing pump 36 by the pump of water Jing counter-flushing pipelines 35 in the second concentrated water case 902To active carbon filter 201, the equipment and pipeline of cleaning active carbon filter 201 and before in-process；Jing counter-infiltrations are pre- de-The water Jing first of salt treatment collects passage 10 and is pumped in cleaning case 15, suspends counter-infiltration pro desalting treatment process, Ran HouliWith cleaning pump 16 by the water in cleaning case 15 with the order of reverse osmosis unit → high-pressure pump → cartridge filter to this section of pipeline andEquipment is cleaned；Mixed ion exchanger 701 can be carried out periodically at wash-out by the quantitative alkali lye being input into after dilution and acid solutionReason.