Boiler water Feeding System systemTechnical field
The invention belongs to Treatment of Industrial Water technical field, and in particular to a kind of Boiler water Feeding System system.
Background technology
With the increasingly increase of the increasingly in short supply and industrial process waters amount of water resource, industrial water treatment technology is alwaysPrimary study direction, has many water technologies to come out in recent years, common such as microorganism treatment, membrane technology facture, reverse osmosisSaturating facture, ion-exchange treatment etc..On the basis of the development of existing water technology, a kind of combined treatment process is searched out,Local water quality situation and enterprise water use demand can be met, qualified industrial water is obtained, being one is worth discussionProblem.
, it is necessary to carry out heat exchange using boiler in thermal power generation or petrochemical industry, the production technology of the steam of fertilizer enterprises, enterAnd need to do boiler feedwater a large amount of processing, to ensure boiler water and steam quality, reduce corrosion and scaling, the salification of boiler tube, it is ensured that potThe normal operation of stove is significant for Unit Economic, safe operation.
Existing boiler water treatment technology mainly has ion-exchange and reverse osmosis membrane, and ion-exchange is mainly used in lowThe Boiler water Feeding System of press group, and reverse osmosis membrane is mainly used in the make up water treatment system of high pressure above unit.However,Existing boiler water treatment technology and equipment are there is also following deficiency, and one is the purging system imperfection of whole equipment, cleaning systemSystem can not supporting whole system use, water use efficiency is low, causes the great wasting of resources；Two be troublesome poeration, energy consumptionHeight, production cost is high, and maintenance cost is high, and effluent characteristics and performance driving economy have much room for improvement, and does not meet what is advocated energetically nowEnvironmental protection and the requirement of sustainable development.
In consideration of it, special propose the present invention.
The content of the invention
It is an object of the invention to provide a kind of Boiler water Feeding System system, the processing system has perfect cleaning systemSystem, improves the utilization rate of water resource, while easy to operate, operating cost is low, and impurity removal percentage is high.
To achieve the above object, the technical solution adopted by the present invention is：
The present invention provides a kind of Boiler water Feeding System system, including be sequentially communicated raw water box, pretreatment system and fromSub- exchange system；
The ion exchange system includes cation bed, intermediate water tank, anion bed and the sweet-water tank being sequentially communicated, the middle waterCarbon dioxide cleaner is provided with case, the cation bed and anion bed are connected with acid purification system and caustic regeneration system respectively；
The top of the cation bed is just being washed discharge pipe line by cation bed and is being connected with cleaning tower in cation bed, and the bottom of the cation bed leads toCross cation bed backwash discharge pipe line to be connected with cleaning tower under cation bed, tower is cleaned in the cation bed and is connected with the pretreatment system, instituteCleaning tower under cation bed is stated to be connected with the acid purification system and the intermediate water tank respectively；
The top of the anion bed is just being washed discharge pipe line by anion bed and is being connected with cleaning tower in anion bed, and the bottom of the anion bed leads toCross anion bed backwash discharge pipe line to be connected with cleaning tower under anion bed, tower is cleaned in the anion bed and is connected with the pretreatment system, instituteCleaning tower under anion bed is stated to be connected with the caustic regeneration system.
As further preferred technical scheme, the pretreatment system includes primary treatment device and reverse-osmosis treated is filledPut, the raw water box, primary treatment device, reverse osmosis treatment device and ion exchange system are sequentially communicated；The cation bed supernatantCleaning tower in tower and the anion bed is washed to be connected with the primary treatment device.
As further preferred technical scheme, the primary treatment device includes ultrafiltration feed pump, the ultrafiltration being sequentially communicatedFilm group and ultrafiltration water producing tank；
Or, including micro-filtration feed pump, microfiltration membranes group and the micro-filtration water producing tank being sequentially communicated；
Or, including filtering feed pump, filter and the water tank with strainer being sequentially communicated, wherein, the filter is many JieMass filter, high-efficiency fiber filter or active carbon filter.
As further preferred technical scheme, the cation bed is dual chamber cation bed, upper chamber filling highly acidic resin, lower room fillingWeakly acidic resin；The anion bed is dual chamber anion bed, upper chamber filling basic resin, lower room filling weakly base resin；The cation bedAnd anion bed two ends end socket and porous plate water-locator is provided between room up and down.
As further preferred technical scheme, porous plate is provided between the cation bed, the upper chamber of anion bed and lower room and is dredgedWater installations and Archon packing layer.
As further preferred technical scheme, the acid purification system includes unload acid pump, acid solution storage tank, acid batch meter and acidInjector；The caustic regeneration system includes unloading alkali pump, alkali liquor storage tank, alkali batch meter and alkali injector.
As further preferred technical scheme, the top of the cation bed is connected by acid line and the acid purification systemConnect, the top of the anion bed is connected by alkali lye pipeline with the caustic regeneration system, the acid line and the alkali lye pipelineOn be provided with hand-operated valve and/or pneumatic operated valve；The bottom of the cation bed and the bottom of anion bed are connected with neutralizing water tank.
As further preferred technical scheme, the cation bed is just being washed discharge pipe line, cation bed backwash discharge pipe line, anion bed and just washedHand-operated valve and/or pneumatic operated valve are provided with discharge pipe line and anion bed backwash discharge pipe line.
As further preferred technical scheme, the ion exchange system also includes mixed bed, and the mixed bed is connected to describedOn pipeline between anion bed and sweet-water tank.
As further preferred technical scheme, in addition to desalination water pump and ammoniacal liquor adding set, the sweet-water tank passes throughThe desalination water pump is connected with the water inlet end of the ammoniacal liquor adding set, the water side of the ammoniacal liquor adding set and entering for boilerWater end (W.E.) is connected.
Compared with prior art, the beneficial effects of the present invention are：
1st, the Boiler water Feeding System system that the present invention is provided, includes pretreatment system and ion exchange system, whereinCleaning tower in tower and cation bed is cleaned in anion bed in ion exchange system to be connected with pretreatment system, can be as pre- by allotmentThe backwash water of processing system or reprocessing water, are cleared up the device in pretreatment system, backwash etc., are set rationally, are madeWith easy to operate, no-float；Cleaning tower is connected with acid purification system and intermediate water tank respectively under cation bed simultaneously, is cleaned under anion bedTower is connected with caustic regeneration system, is reduced the waste of water resource, is improved the utilization rate of water resource.The present invention by said apparatus withAnd the setting of connecting line, a perfect purging system is established, it is easy to operate, improve production efficiency and water resource profitWith rate.
2nd, not only water utilization rate is high by the present invention, and cleaning performance is good, extends the service life of equipment, and impurity is de-Except rate is high, stable effluent quality is safe and reliable, and operational and administrative expenses is relatively low, saves production cost, can both meet low pressure cookerRequirement of the stove to water quality, can also meet requirement of the high-pressure boiler to water quality, meet the environmental protection advocated energetically now and can holdThe requirement of supervention exhibition.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior artThe accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing belowAccompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paidPut, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is Boiler water Feeding System system structure diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of Boiler water Feeding System system structure diagram provided in an embodiment of the present invention；
Fig. 3 is another Boiler water Feeding System system structure diagram provided in an embodiment of the present invention；
Fig. 4 is another Boiler water Feeding System system structure diagram provided in an embodiment of the present invention.
Icon：1- raw water boxs；2- pretreatment systems；201- primary treatment devices；202- reverse osmosis treatment devices；3- cation beds；301- cation beds just wash discharge pipe line；Tower is cleaned in 302- cation beds；303- cation bed backwash discharge pipe lines；304- sunThe lower cleaning tower of bed；4- intermediate water tanks；5- carbon dioxide cleaners；6- anion beds；601- anion beds just wash discharge pipe line；602- anion bed supernatantsWash tower；603- anion bed backwash discharge pipe lines；Tower is cleaned under 604- anion beds；7- sweet-water tanks；8- acid purification systems；801-Unload acid pump；802- acid solution storage tanks；803- acid batch meters；804- Acid injectors；9- caustic regeneration systems；901- unloads alkali pump；902- alkali liquor storage tanks；903- alkali batch meters；904- alkali injectors；10- mixed beds；11- desalination water pumps；12- ammoniacal liquor is addedDevice；13- boilers.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementationExample is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skillThe every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",The orientation or position relationship of the instruction such as " level ", " interior ", " outer ", " top ", " bottom " are to be closed based on orientation shown in the drawings or positionSystem, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must haveSpecific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phaseEven ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；CanTo be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke YishiThe connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at thisConcrete meaning in invention.
Present embodiment provides a kind of Boiler water Feeding System system, including raw water box, the pretreatment system being sequentially communicatedAnd ion exchange system；
The ion exchange system includes cation bed, intermediate water tank, anion bed and the sweet-water tank being sequentially communicated, the middle waterCarbon dioxide cleaner is provided with case, the cation bed and anion bed are connected with acid purification system and caustic regeneration system respectively；
The top of the cation bed is just being washed discharge pipe line by cation bed and is being connected with cleaning tower in cation bed, and the bottom of the cation bed leads toCross cation bed backwash discharge pipe line to be connected with cleaning tower under cation bed, tower is cleaned in the cation bed and is connected with the pretreatment system, instituteCleaning tower under cation bed is stated to be connected with the acid purification system and the intermediate water tank respectively；
The top of the anion bed is just being washed discharge pipe line by anion bed and is being connected with cleaning tower in anion bed, and the bottom of the anion bed leads toCross anion bed backwash discharge pipe line to be connected with cleaning tower under anion bed, tower is cleaned in the anion bed and is connected with the pretreatment system, instituteCleaning tower under anion bed is stated to be connected with the caustic regeneration system.
It is main to use ion-exchange and hyperfiltration in view of in existing Boiler water Feeding System system, it is therein fromThe cation bed of filling cationic ion-exchange resin is generally comprised in sub- exchange process processing system and the moon of anion exchange resin is loadedBed, cation bed and the anion bed resin of the inside after operation a period of time can reach saturation, then need to regenerate resin, clean,It is each to regenerate into the upper cycle removed during regenerated liquid into the suspension of resin bed and broken resin, if cleaning is not thorough,The economy of effluent characteristics and operation can then be influenceed.In addition to anion bed and cation bed need in good time cleaning, at boiler feedwaterOther equipment in reason system is also required in good time cleaning, with the service life of extension device.And at existing boiler feedwaterWhole purging system in reason system and imperfection, its purging system can not supporting whole boiler feed water system use, cleanThe utilization rate of water resource is relatively low, causes the great wasting of resources, production cost is high, and troublesome poeration, wastes time and energy.
To overcome many deficiencies present in prior art, present embodiment, which provides one kind, can improve effluent characteristics and fortuneRow economy, improves water utilization rate, the Boiler water Feeding System system with perfect purging system.
The Boiler water Feeding System system that present embodiment is provided, including pretreatment system and ion exchange system, it leads toCross the cooperation of pretreatment system and ion exchange system so that it can both meet requirement of the low-pressure boiler to water quality, can be withRequirement of the high-pressure boiler to water quality is met, it is applied widely.On the one hand, tower and cation bed are cleaned in the anion bed in the present embodiment modeUpper cleaning tower is connected with pretreatment system, and wherein the wash water of anion bed and cation bed can be used as pretreatment system after processing allotmentBackwash water or reprocessing water, the device in pretreatment system is cleared up, backwash etc., to improve the utilization of water resourceRate, reduces the waste of resource, and easy to operate, no-float, it is possible to increase production efficiency.On the other hand, present embodimentIn cation bed under cleaning tower be connected respectively with acid purification system and intermediate water tank, under anion bed cleaning tower be connected with caustic regeneration system,The backwash water of cation bed both may return in intermediate water tank, can also be delivered in acid purification system and carry out recycling utilization,The backwash water of anion bed can then be delivered in caustic regeneration system and be recycled.
Present embodiment cleaning tower under cleaning tower and anion bed by cleaning tower, cleaning tower under cation bed in cation bed, in anion bedSet, it is ensured that the cleaning performance of anion and cation exchange resin, stable effluent quality, extend the service life of equipment, improveThe economy of operation；Simultaneously by above-mentioned cleaning tower and the setting with the connecting line of each device, establish one it is perfectPurging system, it is not only easy to operate, it is easy to control, and improve the utilization rate of production efficiency and water resource, safely may be usedLean on, with good economic benefit, social benefit and environmental benefit.
With reference to specific embodiments and the drawings, the invention will be further described.
Embodiment one
As shown in figure 1, the present embodiment provides a kind of Boiler water Feeding System system, including the raw water box 1, pre- being sequentially communicatedProcessing system 2 and ion exchange system；Ion exchange system includes cation bed 3, intermediate water tank 4, anion bed 6 and the desalination being sequentially communicatedCarbon dioxide cleaner 5 is provided with water tank 7, intermediate water tank 4, cation bed 3 and anion bed 6 connect with acid purification system 8 and caustic regeneration system 9 respectivelyConnect；
The top of cation bed 3 is just being washed discharge pipe line 301 by cation bed and is being connected with cleaning tower 302 in cation bed, and the bottom of cation bed 3 leads toCross cation bed backwash discharge pipe line 303 to be connected with cleaning tower 304 under cation bed, tower 302 cleaned in cation bed and is connected with pretreatment system 2,Tower 304 is cleaned under cation bed to be connected with acid purification system 8 and intermediate water tank 4 respectively；
The top of anion bed 6 is just being washed discharge pipe line 601 by anion bed and is being connected with cleaning tower 602 in anion bed, and the bottom of anion bed 6 leads toCross anion bed backwash discharge pipe line 603 to be connected with cleaning tower 604 under anion bed, tower 602 cleaned in anion bed and is connected with pretreatment system 2,Tower 604 is cleaned under anion bed to be connected with caustic regeneration system 9.
Wherein, the water inlet connection of the delivery port of raw water box and pretreatment system, the delivery port and ion of pretreatment systemThe water inlet connection of exchange system, the delivery port of ion exchange system and the water inlet of boiler are connected.By the raw water in raw water boxPre-processed by pretreatment system, to meet the inflow requirement of ion exchange system.
Alternatively, the delivery port of raw water box is also connected with the water inlet of ion exchange system, the delivery port of pretreatment systemAlso it is connected with the water inlet of boiler.In actual production, according to low-pressure boiler, high-pressure boiler, medium-pressure boiler, middle low-pressure boiler andPractical situations etc. are optionally carried out or without pretreatment for the requirement of water quality.
It is understood that the carbon dioxide cleaner set on intermediate water tank is used to remove the carbon dioxide in water, to reduce anion bedThe load of middle anion exchange resin；The water of the outlet of carbon dioxide cleaner enters to intermediate water tank.
It should be noted that anion exchange resin and cation in the present embodiment for being loaded in anion bed and cation bedExchanger resin does not make special restriction, using resin commonly used in the prior art, for example, can be styrene series anionExchanger resin, macroreticular resin or D72.
As shown in Fig. 2 on above-described embodiment basis, further, pretreatment system 2 includes primary treatment device201 and reverse osmosis treatment device 202, raw water box 1, primary treatment device 201, reverse osmosis treatment device 202 and ion exchange systemSystem is sequentially communicated；Cleaning tower 602 in tower 302 and anion bed is cleaned in cation bed to be connected with primary treatment device 201.
On above-described embodiment basis, further, primary treatment device 201 includes the ultrafiltration feedwater being sequentially communicatedPump, milipore filter group and ultrafiltration water producing tank；
Or, including micro-filtration feed pump, microfiltration membranes group and the micro-filtration water producing tank being sequentially communicated；
Or, including filtering feed pump, filter and the water tank with strainer being sequentially communicated, wherein, filter is multimedium mistakeFilter, high-efficiency fiber filter or active carbon filter.
By the setting of primary treatment device 201, the suspension that can be gone in water removal, particulate matter intercept the impurity in water,Turbidity is reduced, to purify water and protect system other equipment normal work, the security that enhancing boiler is used.
Raw water passes through the tertiary treatment of above-mentioned primary treatment device, reverse osmosis treatment device and ion exchange system, miscellaneousMatter clearance is high, can improve the removal rate of particulate matter in water, it is ensured that effluent characteristics, to meet the water quality requirement of boiler feedwater,And then the requirement of the long-term good operation of boiler is met, while the water demand of different boiler controller systems can also be met, it is applicable modelEnclose wide.
Because the devices such as milipore filter group, microfiltration membranes group are during longtime running use, it is various that film surface can be trappedHarmful substance is covered, influence film strainability, therefore by effective cleaning technique recover film group aquifer yield to primary atThe operation steady in a long-term for managing device is very important.Thus, cleaned in the cation bed in the present embodiment in tower and anion bed and clean towerIt is connected by delivery pump with ultrafiltration module, microfiltration membranes group or filter, and then realizes effective cleaning for primary treatment device.
On above-described embodiment basis, further, cation bed 3 is dual chamber cation bed, upper chamber filling highly acidic resin, lower roomLoad weakly acidic resin；Anion bed 6 is dual chamber anion bed, upper chamber filling basic resin, lower room filling weakly base resin；The He of cation bed 3The two ends end socket of anion bed 6 and porous plate water-locator is provided between room up and down.
On above-described embodiment basis, further, it is provided between cation bed 3, the upper chamber of anion bed 6 and lower room porousPlate steam trap connection and Archon packing layer.
In the present embodiment, current after pretreatment system comes out, from bottom to top flow through cation bed, first pass through the porous of lower endPlate water-locator, flows subsequently through weakly acidic resin, and porous plate steam trap connection, Archon packing layer enters back into highly acidic resin layer, thenFlow into intermediate water tank.Equally, current are after intermediate water tank comes out, from bottom to top flow through anion bed, first pass through the porous of lower endPlate water-locator, flows subsequently through weakly base resin, and porous plate steam trap connection, Archon packing layer enters back into basic resin layer, thenFlow into sweet-water tank.
Wherein, current flow through cation bed and anion bed from bottom to top, and Weak Type Resin is seated in into lower floor, and strong type resin is seated inLayer, the operating capacity of Weak Type Resin is big, can improve the regeneration period, reduces labor intensity.
As shown in figure 3, on above-described embodiment basis, further, acid purification system 8 includes unload acid pump 801, acid solutionStorage tank 802, acid batch meter 803 and Acid injector 804；Caustic regeneration system 9 includes unloading alkali pump 901, alkali liquor storage tank 902, alkali meteringCase 903 and alkali injector 904.
Regeneration in the present embodiment is counter flow series regeneration, and regenerative agent enters cation bed or anion bed from top, flowed successivelySwapped through strong type resin and Weak Type Resin, the waste liquid after exchange is discharged into neutralizing water tank from bottom.
Alternatively, the outlet of unload acid pump 801 and the inlet communication of acid solution storage tank 802, outlet and the acid of acid solution storage tank 802 are countedThe inlet communication of measuring tank 803, the outlet of acid batch meter 803 and the inlet communication of Acid injector 804, the outlet of Acid injector 804Connected with the top of cation bed 3.Unload the outlet of alkali pump 901 and the inlet communication of alkali liquor storage tank 902, the outlet of alkali liquor storage tank 902 withThe inlet communication of alkali batch meter 903, the outlet of alkali batch meter 903 and the inlet communication of alkali injector 904, alkali injector 904Outlet is connected with the top of anion bed 6.
By the setting of acid purification system 8 and caustic regeneration system 9, the desalination ability of ion exchange resin is enabled to obtainPreferably safeguard and keep.
On above-described embodiment basis, further, the top of cation bed 3 is connected by acid line with acid purification system 8Connect, the top of anion bed 6 is connected by alkali lye pipeline with caustic regeneration system 9, be provided with acid line and alkali lye pipeline manuallyValve and/or pneumatic operated valve；The bottom of cation bed 3 and the bottom of anion bed 6 are connected with neutralizing water tank.
On above-described embodiment basis, further, cation bed is just washing discharge pipe line 301, cation bed backwash discharge pipe line303rd, anion bed is just being washed on discharge pipe line 601 and anion bed backwash discharge pipe line 603 and is being provided with hand-operated valve and/or pneumatic operated valve.
By acid line, alkali lye pipeline, just washing on the pipelines such as discharge pipe line, backwash discharge pipe line set hand-operated valve orPneumatic operated valve, or hand-operated valve and pneumatic operated valve are set gradually on pipeline, not only facilitate operation, and can ensure that the smooth fortune of deviceOK, operating efficiency and automaticity are improved, is eliminated safe hidden trouble, stable and reliable operation.
As shown in figure 4, on above-described embodiment basis, further, ion exchange system also includes mixed bed 10, mixed bed10 are connected on the pipeline between anion bed 6 and sweet-water tank 7.
Alternatively, the top of mixed bed is connected by pipeline with mixed bed regenerative system, and hand-operated valve is respectively provided with connecting pipeAnd/or pneumatic operated valve；The bottom of mixed bed is connected with neutralizing water tank.Wherein, mixed bed regenerative system may include above-mentioned acid purification systemAnd caustic regeneration system.
Boiler water Feeding System system in the present embodiment, if being served only for middle low-pressure boiler, only sets anion bed and cation bedIf, and be further to improve desalination effect, it is necessary to further carry out deep desalting for high pressure and high pressure above unit,Mixed bed is added behind anion bed, to meet use demand.
Alternatively, mixed bed is internal synchronizing regeneration formula mixed bed or external regeneration formula mixed bed, wherein yin, yang resin filling ratioFor 1~3：1；For example can be 1：1、2：1 or 3：1.
The mixed bed, cation bed and anion bed are two, are realized and are connected in series by pipeline and valve.It is standby using a fortune oneMode, to improve production efficiency.
As shown in figure 4, on above-described embodiment basis, further, in addition to desalination water pump 11 and ammoniacal liquor addition dress12 are put, sweet-water tank 7 is connected by desalination water pump 11 with the water inlet end of ammoniacal liquor adding set 12, the water outlet of ammoniacal liquor adding set 12End is connected with the water inlet end of boiler 13.
Water from sweet-water tank out has reached boiler feedwater standard, and pH value is adjusted into 9~12 with ammoniacal liquor, is thenThe production that boiler carries out steam can be sent into.
Conveyed by pump it should be noted that the conveying of solution, water in the present embodiment etc. is more, such as raw water box goes outRaw water pump is set on the connecting line of the mouth of a river, for the conveying of raw water, middle water is set on the delivery port connecting line of intermediate water tankPump, the conveying for middle water.
Alternatively, on the connecting line between each equipment, flowmeter can also be installed, water or solution for conveyingAccurate metering.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extentThe present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according toThe technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are enteredRow equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technologyThe scope of scheme.