CN205556330U - Ultrapure water preparation system and automobile -used urea solution preparation system - Google Patents
Ultrapure water preparation system and automobile -used urea solution preparation system Download PDFInfo
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- CN205556330U CN205556330U CN201620292186.7U CN201620292186U CN205556330U CN 205556330 U CN205556330 U CN 205556330U CN 201620292186 U CN201620292186 U CN 201620292186U CN 205556330 U CN205556330 U CN 205556330U
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Abstract
The utility model relates to an ultrapure water preparation system and automobile -used urea solution preparation system relates to ultrapure water preparation technical field. A preprocessing device, reverse osmosis treatment device and polishing resin finish device that ultrapure water preparation system is including connecting gradually. Preprocessing device includes filtering component. The reverse osmosis treatment device includes the reverse osmosis treatment unit that a reverse osmosis treatment unit or a plurality of connection in series -parallel set up, every reverse osmosis treatment unit includes a RO reverse osmosis membrane technology or a plurality of RO reverse osmosis membrane technology. Polishing resin finish device includes polishing resin filter, product water control unit and the ultrapure water collector unit that connects gradually through the pipeline. An automobile -used urea solution preparation system includes foretell ultrapure water preparation system. The utility model discloses mainly used realizes the miniaturization and the automation of ultrapure water preparation system to make the ultrapure water stabilization of water quality who prepares.
Description
Technical field
This utility model relates to a kind of ultra-pure water preparing technical field, particularly relates to a kind of ultrapure water production system and urea for vehicle solution preparation system.
Background technology
Urea for vehicle refers to that urea concentration is 32.5% and solvent is the aqueous solution of urea of ultra-pure water, and its raw material is urea granules and ultra-pure water.Wherein, urea for vehicle as catalytic reducer, enables Vehicular exhaust to reach effluent standard when processing the tail gas of the diesel vehicle such as heavy truck, passenger vehicle.
The urea for vehicle solution of present stage mainly obtains in the way of the production of chemical plant, and its nucleus equipment is the ultrapure water production device used by dissolved urea granule.But, at least there is following technical problem in this ultrapure water production device: equipment operation length, floor space are big, need multiple professional operation and safeguard and need to use the hazardous chemicals such as strong acid, highly basic.Up to now, there is no a kind of integrated automatic ultrapure water production system of miniaturization to apply to prepare at urea for vehicle solution and all-in-one realizes intelligence produce ultra-pure water.
Utility model content
In view of this, this utility model provides a kind of ultrapure water production system and urea for vehicle solution preparation system, and main purpose is to realize the miniaturization of ultrapure water production system, and makes prepared ultra-pure water water stabilization.
For reaching above-mentioned purpose, this utility model mainly provides following technical scheme:
On the one hand, embodiment of the present utility model provides a kind of ultrapure water production system, and described ultrapure water production system includes pretreatment unit, reverse osmosis treatment device and the polishing resin treatment device being sequentially connected with by pipeline；Wherein,
Described pretreatment unit includes filter assemblies, for tentatively filtering former water；
Reverse osmosis treatment device, for carrying out reverse-osmosis treated to the water after preliminary filtration；Wherein, described reverse osmosis treatment device includes the reverse-osmosis treated unit that a reverse-osmosis treated unit or multiple connection in series-parallel are arranged；Further, each described reverse-osmosis treated unit includes a RO reverse-osmosis membrane element or multiple RO reverse-osmosis membrane element；
Polishing resin treatment device, for carrying out ion-exchange treatment to the water after reverse-osmosis treated；Wherein, described polishing resin treatment device includes polishing resin filter, product water monitoring unit and the ultra-pure water collector unit being sequentially connected with by pipeline.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Preferably, the lower end of described polishing resin filter is connected with described reverse osmosis treatment device by pipeline.
Preferably, the upper end of described polishing resin filter is provided with dog-house, for injecting polishing resin in described polishing resin filter；The lower end of described polishing resin filter is additionally provided with discharging structure, for discharging the polishing resin that described polishing resin filter domestic demand is changed.
Preferably, described discharging structure includes the marker pipe being connected with described polishing resin filter lower end and the discharge control valve being arranged on described marker pipe.
Preferably, described polishing resin treatment device also includes the liquid level linker being connected with described polishing resin filter, for detecting the fluid level condition in described polishing resin filter.
Preferably, the product water monitoring unit of described polishing resin treatment device includes resistivity meter；Wherein, described resistivity meter is arranged on the outlet pipeline being connected with described polishing resin filter upper end, for detecting the product water water quality of described polishing resin filter.
Preferably, described ultra-pure water collector unit includes that ultra-pure water collects water tank；Wherein, described ultra-pure water collection water tank is connected with the outlet pipeline of described polishing resin filter.
Preferably, described ultrapure water production system also includes intermediate water tank；Described intermediate water tank is arranged on the described upstream of polishing resin treatment device, the downstream pipe of described reverse osmosis treatment device.
Preferably, one or more during described filter assemblies includes fore filter, candle filter, adsorption filter；Wherein, described candle filter is coiling candle filter or melt-blown PP cotton filter core filter；Described adsorption filter is granular activated carbon filter or carbon block filter；Wherein, described fore filter selects the stainless (steel) wire fore filter of 40 μm, to filter in former water granules more than 40 μm；The rustless steel coiling candle filter of 10 μm selected by described coiling candle filter, to filter in former water granules more than 10 μm；Described granular activated carbon filter selects the granular activated carbon filter of 10 μm, to adsorb the chlorine residue contained in former water.
Preferably, described filter assemblies also includes ultrafiltration membrane elements；Wherein, described ultrafiltration membrane elements is arranged on the upstream of described reverse osmosis treatment device.
Preferably, described ultrafiltration membrane elements selects PVDF ultrafiltration membrane element capable of washing；Further, described ultrafiltration membrane elements connects the first flushing line, for being rinsed described ultrafiltration membrane elements；Wherein, described first flushing line is provided with the first washing control valve, is controlled with the flushing to described ultrafiltration membrane elements.
Preferably, described pretreatment unit also includes:
Air relief valve, described air relief valve is arranged in the upstream of described fore filter, is not more than the first setting value for the former water pressure controlling to enter in described pretreatment unit；
Pressure transducer, described pressure transducer is arranged on the pipeline between described fore filter and coiling candle filter, for detecting the discharge pressure of described fore filter；
Control valve, described control valve is arranged on the pipeline between described pressure transducer and coiling candle filter；If the discharge pressure that pressure transducer detects is less than the second setting value, then control valve is closed, and makes described pretreatment unit quit work；
Booster pump, described booster pump is arranged on the pipeline between described control valve and coiling candle filter, for the intake pressure of described coiling candle filter is pressurized to the 3rd setting value；
Water inlet control valve, described water inlet control valve is arranged in the upstream of described air relief valve, is used for controlling former water and enters in described pretreatment unit；
Non-return valve, described non-return valve is arranged on the pipeline between described air relief valve and described fore filter, is used for preventing air from entering in described ultrapure water production system.
Preferably, each described reverse-osmosis treated unit also includes:
Pressure flow detection components, described pressure flow detection components is arranged in the upstream of described RO reverse-osmosis membrane element, for detecting intake pressure and the flow of inlet water of reverse-osmosis treated unit；
Pressure flow adjusting part, described pressure flow adjusting part is arranged in the upstream of described intake pressure detection components, for regulating intake pressure and the flow of inlet water of reverse-osmosis treated unit；
Producing water detection components, described product water detection components is arranged on the downstream pipe of described RO reverse-osmosis membrane element, for detecting the product water water quality of reverse-osmosis treated unit.
Preferably, described pressure flow detection components includes pressure transducer and effusion meter；
Described pressure flow adjusting part includes high-pressure pump and regulation valve；Wherein, described high-pressure pump is arranged in the upstream of described pressure flow detection components；Described regulation valve is arranged on the backflow branch road in parallel with described high-pressure pump two ends；
Described product water detection components includes the conductivity meter producing water water quality for detecting reverse-osmosis treated unit.
Preferably, each described reverse-osmosis treated unit also includes concentrated water discharge assembly；Wherein, described concentrated water discharge assembly includes:
Concentrated water discharge pipeline, described concentrated water discharge pipeline is connected with the concentrated water discharge mouth of described RO reverse-osmosis membrane element；And it is provided with the concentrated water discharge control valve for controlling concentrated water discharge on concentrated water discharge pipeline, for detecting the pressure transducer of concentrated water discharge pressure and for detecting the effusion meter of concentrated water discharge flow；
Second flushing line, described second flushing line is connected with the concentrated water discharge mouth of described RO reverse-osmosis membrane element；It is provided with the second washing control valve, to control the flushing to RO reverse-osmosis membrane element on described second flushing line.
Preferably, described reverse osmosis treatment device includes two reverse-osmosis treated unit being arranged in series, respectively first-stage reverse osmosis processing unit and two-pass reverse osmosis processing unit；Wherein, described first-stage reverse osmosis processing unit water after tentatively filtering preprocessed device carries out first-stage reverse osmosis process；Wherein, described first-stage reverse osmosis processing unit includes two RO reverse-osmosis membrane elements being arranged in parallel；Described two-pass reverse osmosis processing unit carries out two-pass reverse osmosis process to the water after first-stage reverse osmosis processes；Wherein, described two-pass reverse osmosis processing unit includes a RO reverse-osmosis membrane element.
Preferably, described reverse osmosis treatment device includes that a reverse-osmosis treated unit, described reverse-osmosis treated unit include a RO reverse-osmosis membrane element.
Preferably, when described reverse-osmosis treated unit includes concentrated water discharge assembly, the concentrated water discharge pipeline of described two-pass reverse osmosis processing unit is additionally provided with non-return valve.
On the other hand, embodiment of the present utility model provides a kind of urea for vehicle solution preparation system, and the preparation system of described urea for vehicle solution includes the ultrapure water production system described in any of the above-described item.
By technique scheme, a kind of ultrapure water production system of the present utility model and urea for vehicle solution preparation system at least have a following beneficial effect:
The ultrapure water production system that this utility model embodiment provides have employed the design of brand-new system, mainly it is made up of pretreatment unit, reverse osmosis treatment device and polishing resin treatment device three part, three partial device structures is compact, floor space is little for this, it is achieved thereby that the miniaturization of ultrapure water production system.Additionally this ultrapure water production system by former water is the most tentatively filtered, reverse-osmosis treated and ion-exchange treatment prepare ultra-pure water, whole process is without using strong acid, highly basic, so that the water stabilization of ultra-pure water.
Further, the ultrapure water production system that this utility model embodiment provides is by carrying out rational layout of beam line to pretreatment unit, reverse osmosis treatment device and polishing resin treatment device, and use flow, pressure, water quality parameter online measuring technique, ultrapure water production system is made to carry out according to Automatic Program according to parameter, operate without professional, thus furthermore achieved that the automatization of ultrapure water production system；Make ultrapure water production system apply when urea for vehicle solution is prepared in all-in-one and realize the continuous purpose producing ultra-pure water of intelligence.
Further, the ultrapure water production system that this utility model embodiment provides is by arranging a dog-house in the upper end of polishing resin filter, one discharging structure is set in the lower end of polishing resin filter so that polishing resin feeds intake, discharging process is convenient, it is not necessary to entirety is taken apart.
It addition, the urea for vehicle solution preparation system that this utility model embodiment provides is by using above-mentioned ultrapure water production system, the intelligence not only achieving urea for vehicle solution produces, also improves the quality of urea for vehicle solution continuously.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be practiced according to the content of description, below with preferred embodiment of the present utility model and coordinate accompanying drawing describe in detail as after.
Accompanying drawing explanation
Fig. 1 is the overall schematic of a kind of ultrapure water production system that embodiment of the present utility model provides；
Fig. 2 is the overall schematic of the another kind of ultrapure water production system that embodiment of the present utility model provides；
Fig. 3 is a kind of schematic diagram polishing resin treatment device that embodiment of the present utility model provides；
Fig. 4 is the schematic diagram of a kind of pretreatment unit that embodiment of the present utility model provides；
Fig. 5 is the schematic diagram of a kind of reverse osmosis treatment device that embodiment of the present utility model provides.
Detailed description of the invention
By further illustrating the technological means and effect that this utility model taked by reaching predetermined utility model purpose, below in conjunction with accompanying drawing and preferred embodiment, to the foundation detailed description of the invention of this utility model application, structure, feature and effect thereof, after describing in detail such as.In the following description, what different " embodiments " or " embodiment " referred to is not necessarily same embodiment.Additionally, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Embodiment 1
The present embodiment provides a kind of ultrapure water production system, and this ultrapure water production system is mainly used in the production of urea for vehicle solution, to prepare the ultra-pure water required for urea for vehicle solution produces.Specifically, the ultrapure water production system in the present embodiment includes pretreatment unit, reverse osmosis treatment device and the polishing resin treatment device being sequentially connected with by pipeline.
Wherein, pretreatment unit includes filter assemblies, for tentatively filtering former water, to remove granule, chlorine residue, colloid and the microorganism in former water, plays the effect protecting follow-up reverse osmosis treatment device.
Reverse osmosis treatment device is for carrying out reverse-osmosis treated to the water after preliminary filtration.Wherein, reverse osmosis treatment device includes that a reverse-osmosis treated unit (ultrapure water production system as shown in Figure 2 includes a reverse-osmosis treated unit) or multiple connection in series-parallel arrange the reverse-osmosis treated unit (ultrapure water production system as shown in Figure 1 includes two reverse-osmosis treated unit connected) of (" connection in series-parallel " in this include all connecting, parallel connection the most in parallel, existing has again three kinds of situations of series connection).Further, each reverse-osmosis treated unit includes the RO reverse-osmosis membrane element (one of them the reverse-osmosis treated unit in ultrapure water production system includes two RO reverse-osmosis membrane elements 201 being arranged in parallel as shown in Figure 1) that a RO reverse-osmosis membrane element (the reverse-osmosis treated unit in ultrapure water production system includes a RO reverse-osmosis membrane element 20 as shown in Figure 2) or multiple connection in series-parallel are arranged.
Polishing resin treatment device, for the water after reverse-osmosis treated is carried out ion-exchange treatment, removes the micro ion contained in water further, makes water reach the clean level of super clean.Polishing resin treatment device includes polishing resin filter, product water monitoring unit and the ultra-pure water collector unit being sequentially connected with by pipeline.Wherein, polishing resin filter, with polishing resin as filter medium, carries out ion-exchange treatment to the water after reverse-osmosis treated, removes the micro ion contained in water further, makes water reach the clean level of ultra-pure water.Produce water monitoring unit water after polishing resin filter is filtered and carry out monitoring water quality.Ultra-pure water collector unit collects the ultra-pure water after polishing resin filter filters.
The ultrapure water production system that the present embodiment provides have employed the design of brand-new system, mainly it is made up of above-mentioned pretreatment unit, reverse osmosis treatment device and polishing resin treatment device three part, three partial device structures is compact, floor space is little for this, it is achieved thereby that the miniaturization of ultrapure water production system.Additionally this ultrapure water production system by former water is the most tentatively filtered, reverse-osmosis treated and ion-exchange treatment prepare ultra-pure water, whole process is without using strong acid, highly basic, so that the water stabilization of ultra-pure water.
Embodiment 2
It is preferred that the present embodiment provides a kind of ultrapure water production system, compared with a upper embodiment, as shown in Figure 1, Figure 2 and Figure 3, the lower end of the polishing resin filter 31 in the present embodiment polishing resin treatment device is connected with the outlet pipeline of reverse osmosis treatment device.Polishing resin filter upper end connects ultra-pure water outlet pipeline.The time of ion exchange is carried out by so arranging the water after increasing reverse-osmosis treated and polishing resin.Specifically, water after reverse-osmosis treated enters in polishing resin treatment filter 31 from the lower end of polishing resin filter, along with the liquid level in polishing resin filter 31 constantly raises, water after reverse-osmosis treated fully carries out ion exchange with polishing resin, and the ultra-pure water finally given is entered by the outlet pipeline polishing resin filter upper end and produces in water monitoring unit through monitoring water quality laggard excess of imports pure water collection unit.
It is preferred that the upper end of polishing resin filter 31 is provided with dog-house 311, this dog-house 311 usually sealing state, when polishing resin changed by needs, open dog-house 311, inject polishing resin wherein.The lower end of polishing resin filter 31 is additionally provided with discharging structure, and expire in discharging polishing resin filter 31 the polishing resin needing to change.It is preferred that discharging structure includes drainage line, one end of drainage line is connected to polish the lower end of resin filter 31, and the other end is set to reserved discharge gate 313.Being additionally provided with discharge control valve 312 in drainage line, discharge control valve 312 is preferably manual ball valve.Here, by arranging a dog-house 311 in the upper end of polishing resin filter 31, arrange a discharging structure in the lower end of polishing resin filter 31 so that polishing resin feeds intake, discharging process is convenient, it is not necessary to entirety is taken apart.
It is preferred that polishing resin treatment device also includes the liquid level linker being connected with polishing resin filter 31, the fluid level condition in detecting polishing resin filter 31.
It is preferred that the product water monitoring unit in the present embodiment polishing resin treatment device includes resistivity meter 321.Wherein, resistivity meter 321 is arranged on and polishes on the outlet pipeline that resin filter 31 upper end is connected, the water quality of the ultra-pure water obtained after detecting the exchange of polished resin filter 31 ion.
It is preferred that the ultra-pure water collector unit in the present embodiment polishing resin treatment device includes that ultra-pure water collects water tank 33.Wherein, ultra-pure water is collected water tank 33 and is connected with the outlet pipeline of polishing resin filter 31, and is positioned at the downstream producing water monitoring unit.Ultra-pure water is collected in water tank 33 and is provided with fluid level control device, and the setting liquid level that ultra-pure water is collected water tank is controlled, and ultra-pure water collects water tank strict seal；Wherein, set liquid level and have four points (i.e. 4 Liquid level points), wherein, the highest Liquid level point is (i.e., ultra-pure water collects the reserved peak level of water tank) for insuring water lev el control point, this reserved high water level does not the most contact water, and when peak level controls to lose efficacy, reserved high water level plays the effect preventing ultra-pure water from collecting water tank generation overflow.Ultra-pure water is collected the upper end of water tank 33 and is provided with respiratory organ 331, and during being used for ensureing that ultra-pure water collects water tank 33 internal gas and air exchange, it is internal that external particle cannot be introduced into ultra-pure water collection water tank 33.It addition, be additionally provided with reserved drainpipe road in the lower end of ultra-pure water collection water tank 33, reserved drainpipe road being provided with draining control valve 333, the port in reserved drainpipe road is set to reserved discharge outlet 334.It is preferred that the lower end that ultra-pure water collects water tank 33 is additionally provided with the outlet pipeline 332 for connecting stirring flow process, for preparation urea for vehicle solution.
It addition, " upstream ", " downstream " that the present embodiment and following embodiment are mentioned is the flow direction definition according to current.
The specific works flow process of polishing resin treatment device that the present embodiment provides is as follows: through the pure water of reverse-osmosis treated in the pipeline sealed directly lower end from polishing resin filter 31 enter (what wherein, the filling of polishing resin filter 31 inside completely mixed efficiently polishes resin) in polishing resin filter 31.When after reverse-osmosis treated water enter polishing resin filter 31 after be full of polishing resin therein carry out ion exchange process, the micro ion contained in water by exchange adsorption polishing resin filter 31 in reach highly purified purpose.By the liquid level linker observable fluid level condition outside polishing resin filter 31.The ultra-pure water of gained is discharged by polishing resin filter 31 upper end after ion exchange, flows into ultra-pure water and collect in water tank 33 after resistivity meter 321 detects water quality, standby using the solvent as preparation urea for vehicle solution.
Embodiment 3
Preferably; the present embodiment provides a kind of ultrapure water production system; one or more compared with a upper embodiment, during the filter assemblies of pretreatment unit includes fore filter, candle filter (can be selected for coiling candle filter or melt-blown PP cotton filter core filter) and adsorption filter (can be selected for granular activated carbon filter or carbon block filter) in the present embodiment.Specifically, filter can be increased and decreased by the filter assemblies of pretreatment unit according to local water quality.
Preferably; as shown in Figure 1, Figure 2 and Figure 4, in the present embodiment, the filter assemblies in pretreatment unit can be configured to as follows: the fore filter 111 that is sequentially connected with by pipeline, coiling candle filter 112 (coiling candle filter in this can replace with melt-blown PP cotton filter core filter), granular activated carbon filter 113 (granular activated carbon filter in this can replace with carbon block filter).Here, fore filter 111 selects 40 μm auto-flushing stainless (steel) wire fore filters, to filter in former water silt solid particles more than 40 μm or impurity.20 cun of 10 μm rustless steel coiling candle filter of 5 core selected by coiling candle filter 112, to filter in former water solid particles more than 10 μm.Granular activated carbon filter 113 selects 20 cun of 10 μm granular activated carbon filter of 5 core; to adsorb the chlorine residue and partial organic substances contained in former water, it is ensured that enter in the water of reverse osmosis treatment device without chlorine residue (chlorine residue with strong oxidizing property touches the effect that the functional layer generation degraded on its surface can be destroyed by reverse osmosis membrane).It addition, fore filter 111, coiling candle filter 112, granular activated carbon filter 113 are in addition to selecting above-mentioned filtering accuracy, it is also possible to select other precision according to the concrete water quality in locality.
It is preferred that if the ultrapure water production system in the present embodiment is applied when poor regional of water quality, the filter assemblies in the present embodiment also includes ultrafiltration membrane elements 114.Wherein, ultrafiltration membrane elements 114 is arranged on the upstream of reverse osmosis treatment device, is preferably provided at the downstream pipe of granular activated carbon filter 113.To remove the granule of more than 0.1 μm in former water, colloid, partial organic substances, virus, microorganism further.
It is preferred that ultrafiltration membrane elements is preferably the flushable ultrafiltration membrane elements of PVDF of 3t/h.It is preferred that ultrafiltration membrane elements 114 connects the first flushing line for rinsing ultrafiltration membrane elements, the first flushing line is provided with the first washing control valve 15, is controlled with the flushing to hyperfiltration membrane assembly 114.It is preferred that the first washing control valve 15 selects electrical ball valve, to realize the flushing of hyperfiltration membrane assembly 114 is automatically controlled.
It addition, in the present embodiment, the configuration of pretreatment unit is variable, considers whether to arrange ultrafiltration membrane elements 114 according to local water quality situation.Area as good in, water quality is without arranging ultrafiltration membrane elements 114.Here, can also by the installation site of ultrafiltration membrane elements 114 in advance in the area that water quality is good, removal fore filter and coiling candle filter, i.e. filter assemblies only include ultrafiltration membrane elements and the adsorption filter being sequentially connected with by pipeline simultaneously.
Follow-up reverse osmosis treatment device, by filter assemblies carries out the silt that can filter well in former water as configured above, granule, colloid, microorganism, is played a very good protection by the device of the pretreatment that the present embodiment provides.
Embodiment 4
It is preferred that the present embodiment provides a kind of ultrapure water production system, compared with Example 2, the pretreatment unit of the present embodiment also includes pressure control assembly, is mainly used in controlling pretreatment unit and the intake pressure of filter assemblies.
Specifically, as shown in Figure 1, Figure 2 and Figure 4, pressure control assembly includes air relief valve 121, pressure transducer 122, control valve 123 and booster pump 124.Wherein, air relief valve 121 is arranged in the upstream of fore filter 111, is not more than the first setting value for controlling to enter the former water pressure of pretreatment unit；It is preferred that the first setting value is 0.4MPa.Pressure transducer 122 is arranged on the pipeline between fore filter 111 and coiling candle filter 112, for detecting the discharge pressure of fore filter 111.Control valve 123 is arranged on the pipeline between pressure transducer 122 and coiling candle filter 112；Here, pressure transducer 122 and control valve 123 form low-voltage variation mechanism；If the intake pressure that pressure transducer detects is less than the second setting value (it is preferred that the second setting value is 0.2MPa), the second control valve 123 is then closed, and makes pretreatment unit quit work.It is preferred that control valve 123 selects electrical ball valve.Booster pump 124 is arranged on the pipeline between the second control valve 123 and coiling candle filter 112, for the intake pressure of coiling candle filter 112 is pressurized to the 3rd setting value.
It addition, pretreatment unit also includes water inlet control valve 14 and non-return valve 13.Wherein, water inlet control valve 14 is arranged in the upstream of air relief valve 121, is used for controlling former water and enters in pretreatment unit.It is preferred that water inlet control valve 14 is preferably manual ball valve.Non-return valve 13 is arranged in the upstream of fore filter 111 (the preferably pipeline between air relief valve 121 and fore filter 111)；Non-return valve 13 is used for preventing air from entering in ultrapure water production system, gets rid of the risk broken down because air enters system.
The present embodiment is by carrying out rational deployment to the pressure control assembly of pretreatment unit, while former water is carried out pretreatment efficiency, realizes the miniaturization of ultrapure water production system, automatization further.
The work process that former water is tentatively filtered by the pretreatment unit that the present embodiment provides is specific as follows: the manual ball valve 14 that the former water in qualified municipal tap water meeting GB5749-2006 standard passes through to open enters in the pretreatment unit of ultrapure water production system.Guarantee that the former water pressure entered in pretreatment unit is not more than 0.4MPa by the effect of air relief valve 121.Guarantee that air cannot enter ultrapure water production system from the water inlet of pretreatment unit by the effect of non-return valve 13, get rid of the risk broken down because air enters system.The former water entering pretreatment unit filters the silt solid particle (regular auto-flushing will be deposited in the contaminant exclusion of screen surface) of more than 40 μm therein after air relief valve 121 reduces pressure through 40 μm auto-flushing stainless (steel) wire fore filters 111.Pressure transducer 122 and electrical ball valve 123 combination form low-voltage variation mechanism, and when the intake pressure of pressure transducer 122 sensing is less than the second setup pressure value 0.2MPa of system design, electrical ball valve 123 is closed, system stalls.20 cun of 10 μm 20 cun of 10 μm rustless steel granular activated carbon filter 113 of rustless steel coiling candle filter 112 and 5 core of 5 core is sequentially entered after former water intensified pump 124 supercharging after fore filter 111 filters.Removed the solid particle being more than 10 μm in water by coiling candle filter 112, the chlorine residue in water and partial organic substances can be adsorbed by granular activated carbon filter 113, it is ensured that enter in the water of reverse-osmosis treated unit without chlorine residue.Finally, the former water after granular activated carbon filter 113 filters removes the granule of more than 0.1 μm therein, colloid, partial organic substances, virus, microorganism after PVDF flushable ultrafiltration membrane elements 114 filters.It addition, realize the film surface of ultrafiltration membrane elements 114 is rinsed by the first washing control valve 15.When the flux decline of ultrafiltration membrane elements 114 carries out manual flushing to need to be disassembled by the filter element of ultrafiltration membrane elements when auto-flushing also cannot return to 1t/h.
Embodiment 5
Preferably, the present embodiment provides a kind of ultrapure water production system, compared with Example 1, as in figure 2 it is shown, in the present embodiment each reverse-osmosis treated unit of reverse osmosis treatment device also include: pressure flow detection components, pressure flow adjusting part and produce water detection components.
Wherein, pressure flow adjusting part is arranged in the upstream of pressure flow detection components.Further, pressure flow adjusting part includes high-pressure pump 21 and regulation valve 22 (wherein, regulation valve 22 is preferably manual ball valve).Regulation valve 22 is arranged on the backflow branch road in parallel with high-pressure pump 21 two ends.By high-pressure pump 21, the water of preprocessed device pretreatment is pressurized to the operating pressure (e.g., 0.8 or 1.6MPa) of RO reverse-osmosis membrane element 20.Wherein, flow and pressure can be regulated within the specific limits by the regulation valve 22 on backflow branch road in parallel with high-pressure pump 21.
Wherein, pressure flow detection components includes pressure transducer 23 and the pulsed effusion meter (not shown) being arranged on RO reverse-osmosis membrane element 20 upstream, pressure and flow that high-pressure pump 21 can export water carry out on-line monitoring (i.e., the intake pressure of monitoring reverse-osmosis treated unit and flow of inlet water), when flow is less than 1t/h, system sends prompting.
Produce water detection components to be arranged on the downstream pipe of RO reverse-osmosis membrane element 20.Specifically, produce water detection components and include the conductivity meter 24 producing water water quality for on-line monitoring reverse osmosis membrane processing unit；When producing electrical conductivity of water more than 40 μm S cm, system sends prompting.It addition, the product water pressure of reverse-osmosis treated unit and flow can carry out on-line monitoring by the pressure transducer (not shown) being arranged on the downstream pipe of RO reverse-osmosis membrane element and pulsed effusion meter 25.
The ultrapure water production system that the present embodiment provides is by carrying out as set above to reverse-osmosis treated unit, it is achieved that automatically the running of system, operate without professional, flow, pressure and the purpose of water quality parameter on-line checking.
Embodiment 6
It is preferred that the present embodiment provides a kind of ultrapure water production system, compared with Example 5, as in figure 2 it is shown, each reverse-osmosis treated unit of reverse osmosis treatment device also includes concentrated water discharge assembly in the present embodiment.Specifically, concentrated water discharge assembly includes concentrated water discharge pipeline and the second flushing line.Wherein, concentrated water discharge pipeline is connected with the concentrated water discharge mouth of RO reverse-osmosis membrane element 20.Pressure transducer 26, concentrated water discharge control valve 27 (preferably rustless steel manual needle valve) and effusion meter 28 (preferably pulsed effusion meter) it is provided with on concentrated water discharge pipeline.Wherein, the pressure and the flow that discharge dense water carry out on-line monitoring by pressure transducer 26, effusion meter 28.Second flushing line is connected with the concentrated water discharge mouth of RO reverse-osmosis membrane element 20, and the second flushing line is provided with the second washing control valve 29, to control the flushing to RO reverse-osmosis membrane element.The second preferred electromagnetic valve of washing control valve 29.Force rinse facilities under after during start or running one hour continuously every time and realize the flushing to RO reverse-osmosis membrane element 20 by electromagnetic valve 29.
Embodiment 7
It is preferred that the present embodiment provides a kind of ultrapure water production system, compared with Example 6, in the present embodiment, reverse osmosis treatment device includes two reverse-osmosis treated unit being arranged in series, respectively first-stage reverse osmosis processing unit and two-pass reverse osmosis processing unit.Wherein, first-stage reverse osmosis processing unit water after tentatively filtering preprocessed device carries out first-stage reverse osmosis process.Two-pass reverse osmosis processing unit carries out two-pass reverse osmosis process to the water after first-stage reverse osmosis processes.
As shown in Figure 1 and Figure 5, first-stage reverse osmosis processing unit includes two one-level RO reverse-osmosis membrane elements 201 being arranged in parallel.The pretreated water of preprocessed device is pressurized to the operating pressure of one-level RO reverse-osmosis membrane element 201 (e.g., 0.6 or 1.6MPa) through one-level high-pressure pump 211.The pressure and the flow that enter water in first-stage reverse osmosis processing unit can be regulated within the specific limits by one-level regulation valve 221 (preferably manual ball valve) on backflow branch road in parallel with one-level high-pressure pump 211.Pressure transducer 231, pulsed effusion meter can carry out on-line monitoring to the water of one-level high-pressure pump 211 output, and when flow is less than 1t/h, system sends prompting.Respectively enter in 2 one-level RO reverse-osmosis membrane elements 201 through the water of one-level high-pressure pump 211 supercharging and purify.Can regulate pure water/dense Water Sproading rate according to local condition of water quality by concentrated water discharge control valve 271, the one-level RO reverse-osmosis membrane element response rate is generally located on 30-50%.By pressure transducer 261, effusion meter 281, pressure, the flow of concentrated water discharge are carried out on-line checking.Start or continuously operation 1 hour every time, realize the flushing to two one-level RO reverse-osmosis membrane elements 201 by controlling the second washing control valve 291 on the second flushing line.The product discharge of one-level RO reverse-osmosis membrane element 201, by effusion meter 251 on-line checking, is produced water water quality and is carried out on-line monitoring by conductivity meter 241, and when producing water water quality more than 40 μ S cm, system sends prompting.
Two-pass reverse osmosis processing unit includes two grades of RO reverse-osmosis membrane elements 202.The water that produces of first-stage reverse osmosis processing unit is pressurized to the operating pressure (e.g., 0.6 or 1.6MPa) of two grades of RO reverse-osmosis membrane elements 202 by two grades of high-pressure pumps 212.Flow and pressure can be by regulating with the manual ball valve 222 on two grades of high-pressure pump 212 backflow in parallel branch roads within the specific limits.Through the supercharging of two grades of high-pressure pumps 212 water enter two grades of RO reverse-osmosis membrane elements 202 purify.Can regulate pure water/dense Water Sproading rate according to local condition of water quality by concentrated water discharge control valve 272, two grades of RO reverse-osmosis membrane element response rate are generally located on 40-90%.By pressure transducer 262, effusion meter 282, concentrated water discharge pressure, flow are carried out on-line checking.Start or continuously operation 1 hour every time, realize the flushing to two grades of RO reverse-osmosis membrane elements 202 by controlling the second washing control valve 292 on the second flushing line.The product discharge of two grades of RO reverse-osmosis membrane elements 202, by effusion meter 252 on-line checking, is produced water water quality and is carried out on-line monitoring by conductivity meter 242, and when producing water water quality more than 20 μ S cm, system sends prompting.
It addition, reverse osmosis treatment device also includes first row water lines 51, concentrated water discharge pipeline and second flushing line of reverse-osmosis treated unit are connected to first row water lines 51.It is preferred that as it is shown in figure 1, the first flushing line in pretreatment unit also connects with first row water lines 51.It is preferred that the highest point in first row water lines 51 is additionally provided with air bleeding valve 511, it is used for getting rid of the gas accumulated in first row water lines, prevents the generation of back pressure.
It is preferred that be additionally provided with non-return valve 290 on the concentrated water discharge pipeline of two-pass reverse osmosis processing unit, it is used for the discharge generation impact of the dense water water dense on two-pass reverse osmosis processing unit preventing first-stage reverse osmosis processing unit from being discharged.
Embodiment 8
It is preferred that the present embodiment provides a kind of ultrapure water production system, compared with above-described embodiment, as in figure 2 it is shown, reverse osmosis treatment device only includes a reverse-osmosis treated unit in the present embodiment, and this reverse-osmosis treated unit includes a RO reverse-osmosis membrane element 20.It is the most regional that reverse osmosis treatment device in the present embodiment is applicable to water quality.Described in its specific works process reference example 7, do not repeat at this to repeat.
The reverse osmosis treatment device that above-described embodiment provides arranges the reverse-osmosis treated unit of a reverse-osmosis treated unit or multiple series connection according to local water quality, and each reverse-osmosis treated unit is by arranging the RO reverse-osmosis membrane element of one or more series connection, pressure flow detection components, pressure flow adjusting part, product water detection components and concentrated water discharge assembly.Not only increased the reverse osmosis effect of reverse osmosis unit by above-mentioned setting, also realize the water inlet of reverse-osmosis treated, the product flow of water, pressure and water quality and carry out on-line monitoring and regulation, it is achieved that the automatization of ultrapure water production system, intellectuality.
Embodiment 9
Preferably, the present embodiment provides a kind of ultrapure water production system, compared with above-described embodiment, the ultrapure water production system in the present embodiment is in order to ensure that water quality and flow arrange an intermediate water tank at the polishing upstream of resin treatment device, the downstream pipe of reverse osmosis treatment device.This intermediate water tank is for collecting the product water of reverse osmosis treatment device, and the water after polishing resin treatment device provides reverse-osmosis treated.
It is preferred that intermediate water tank strict seal.Intermediate water tank is provided with for intermediate water tank sets the fluid level control device that liquid level is controlled, and intermediate water tank strict seal；Wherein, set liquid level and have four points (i.e. 4 Liquid level points), the highest Liquid level point is (i.e., the reserved peak level of intermediate water tank) for insuring water lev el control point, this reserved high water level does not the most contact water, when peak level controls to lose efficacy, reserved high water level plays the effect preventing intermediate water tank generation overflow.The top of intermediate water tank is provided with respiratory organ, while being used for getting rid of excessive gas, it is ensured that outside solid particle cannot be introduced into intermediate water tank.The lower end of intermediate water tank is provided with outlet conduit, and outlet conduit is provided with outlet water control valve, for controlling the water outlet of intermediate water tank.
It is preferred that the pipeline highest point in the ultrapure water production system provided in above-described embodiment is provided with air bleeding valve, so that pipeline to be protected and to guarantee the water quality of ultra-pure water.
Embodiment 10
On the other hand, the present embodiment provides a kind of urea for vehicle solution preparation system, and wherein, the preparation system of this urea for vehicle solution includes the ultrapure water production system of any of the above-described embodiment.
It is preferred that the urea for vehicle solution preparation system in the present embodiment also includes agitator tank, this agitator tank has ultra-pure water import, urea granules import and urea for vehicle taphole.Wherein, ultra-pure water import is connected with the ultra-pure water collection water tank in ultrapure water production system.
The urea for vehicle solution preparation system that the present embodiment provides is by using the ultrapure water production system of above-described embodiment, and the intelligence not only achieving urea for vehicle solution produces, also improves the quality of urea for vehicle solution continuously.
In sum, skilled addressee readily understands that, on the premise of not conflicting, above-mentioned each advantageous manner can freely combine, superposition.
The above, it it is only preferred embodiment of the present utility model, not this utility model is made any pro forma restriction, any simple modification, equivalent variations and the modification made above example according to technical spirit of the present utility model, all still falls within the range of technical solutions of the utility model.
Claims (19)
1. a ultrapure water production system, it is characterised in that described ultrapure water production system includes passing through
Pretreatment unit, reverse osmosis treatment device and the polishing resin treatment device that pipeline is sequentially connected with；Wherein,
Described pretreatment unit includes filter assemblies, for tentatively filtering former water；
Reverse osmosis treatment device, for carrying out reverse-osmosis treated to the water after preliminary filtration；Wherein, institute
State at the reverse osmosis that reverse osmosis treatment device includes that a reverse-osmosis treated unit or multiple connection in series-parallel are arranged
Reason unit；Further, each described reverse-osmosis treated unit includes a RO reverse-osmosis membrane element or multiple
RO reverse-osmosis membrane element；
Polishing resin treatment device, for carrying out ion-exchange treatment to the water after reverse-osmosis treated；Its
In, described polishing resin treatment device includes polishing resin filter, the product being sequentially connected with by pipeline
Water monitoring unit and ultra-pure water collector unit.
Ultrapure water production system the most according to claim 1, it is characterised in that described polishing tree
The lower end of grease filter is connected with described reverse osmosis treatment device by pipeline.
Ultrapure water production system the most according to claim 1, it is characterised in that described polishing tree
The upper end of grease filter is provided with dog-house, for injecting polishing tree in described polishing resin filter
Fat；
The lower end of described polishing resin filter is additionally provided with discharging structure, is used for discharging described polishing tree
The polishing resin that grease filter domestic demand is changed.
Ultrapure water production system the most according to claim 3, it is characterised in that described discharge is tied
Structure includes the marker pipe being connected with described polishing resin filter lower end and is arranged on described marker pipe
On discharge control valve.
Ultrapure water production system the most according to claim 1, it is characterised in that described polishing tree
Fat processing means also includes the liquid level linker being connected with described polishing resin filter, is used for detecting institute
State the fluid level condition in polishing resin filter.
Ultrapure water production system the most according to claim 1, it is characterised in that described polishing tree
The product water monitoring unit of fat processing means includes resistivity meter；Wherein,
Described resistivity meter is arranged on the outlet pipeline being connected with described polishing resin filter upper end,
For detecting the product water water quality of described polishing resin filter.
Ultrapure water production system the most according to claim 1, it is characterised in that described ultra-pure water
Collector unit includes that ultra-pure water collects water tank；Wherein, described ultra-pure water collects water tank and described polishing tree
The outlet pipeline of grease filter connects.
Ultrapure water production system the most according to claim 1, it is characterised in that described ultra-pure water
Preparation system also includes intermediate water tank；Described intermediate water tank is arranged on described polishing resin treatment device
Upstream, described reverse osmosis treatment device downstream pipe on.
Ultrapure water production system the most according to claim 1, it is characterised in that described filtration group
Part includes one or more in fore filter, candle filter, adsorption filter；Wherein, institute
Stating candle filter is coiling candle filter or melt-blown PP cotton filter core filter；Described adsorption filter
For granular activated carbon filter or carbon block filter；Wherein,
Described fore filter selects the stainless (steel) wire fore filter of 40 μm, to filter in former water 40
Granule more than μm；
The rustless steel coiling candle filter of 10 μm selected by described coiling candle filter, former to filter
More than 10 μm granule in water；
Described granular activated carbon filter selects the granular activated carbon filter of 10 μm, to adsorb former water
In the chlorine residue that contains.
Ultrapure water production system the most according to claim 9, it is characterised in that described filtration
Assembly also includes ultrafiltration membrane elements；Wherein, described ultrafiltration membrane elements is arranged on described reverse-osmosis treated dress
The upstream put.
11. ultrapure water production systems according to claim 10, it is characterised in that described ultrafiltration
Membrane component selects PVDF ultrafiltration membrane element capable of washing；Further, described ultrafiltration membrane elements connects first
Flushing line, for being rinsed ultrafiltration membrane elements；Wherein, described first flushing line is arranged
There is the first washing control valve, be controlled with the flushing to described ultrafiltration membrane elements.
12. ultrapure water production systems according to claim 9, it is characterised in that described pre-place
Reason device also includes:
Air relief valve, described air relief valve is arranged in the upstream of described fore filter, is used for controlling
The former water pressure entered in described pretreatment unit is not more than the first setting value；
Pressure transducer, described pressure transducer is arranged on described fore filter and coiling filter element filtering
On pipeline between device, for detecting the discharge pressure of described fore filter；
Control valve, described control valve is arranged between described pressure transducer and coiling candle filter
On pipeline；If the discharge pressure that pressure transducer detects is less than the second setting value, then control valve is in
Closed mode, makes described pretreatment unit quit work；
Booster pump, described booster pump is arranged on the pipeline between described control valve and coiling candle filter
On, for the intake pressure of described coiling candle filter is pressurized to the 3rd setting value；
Water inlet control valve, described water inlet control valve is arranged in the upstream of described air relief valve, is used for
Control former water to enter in described pretreatment unit；
Non-return valve, described non-return valve is arranged on the pipeline between described air relief valve and described fore filter
On, it is used for preventing air from entering in described ultrapure water production system.
13. ultrapure water production systems according to claim 1, it is characterised in that each described
Reverse-osmosis treated unit also includes:
Pressure flow detection components, described pressure flow detection components is arranged on described RO reverse osmosis membrane element
In the upstream of part, for detecting intake pressure and the flow of inlet water of reverse-osmosis treated unit；
Pressure flow adjusting part, described pressure flow adjusting part is arranged on the detection of described intake pressure
In the upstream of assembly, for regulating intake pressure and the flow of inlet water of reverse-osmosis treated unit；
Producing water detection components, described product water detection components is arranged on the downstream of described RO reverse-osmosis membrane element
On pipeline, for detecting the product water water quality of reverse-osmosis treated unit.
14. ultrapure water production systems according to claim 13, it is characterised in that
Described pressure flow detection components includes pressure transducer and effusion meter；
Described pressure flow adjusting part includes high-pressure pump and regulation valve；Wherein, described high-pressure pump is arranged
In the upstream of described pressure flow detection components；Described regulation valve is arranged on and described high-pressure pump
On the backflow branch road that two ends are in parallel；
Described product water detection components includes the electrical conductivity producing water water quality for detecting reverse-osmosis treated unit
Instrument.
15. ultrapure water production systems according to claim 1, it is characterised in that each described
Reverse-osmosis treated unit also includes concentrated water discharge assembly；Wherein, described concentrated water discharge assembly includes:
The concentrated water discharge of concentrated water discharge pipeline, described concentrated water discharge pipeline and described RO reverse-osmosis membrane element
Mouth connects；And be provided with on concentrated water discharge pipeline the concentrated water discharge control valve for controlling concentrated water discharge,
For detecting the pressure transducer of concentrated water discharge pressure and for detecting the effusion meter of concentrated water discharge flow；
The concentrated water discharge of the second flushing line, described second flushing line and described RO reverse-osmosis membrane element
Mouth connects；It is provided with the second washing control valve, to control RO reverse osmosis on described second flushing line
The flushing of membrane component.
16. according to the ultrapure water production system described in any one of claim 13-15, it is characterised in that
Described reverse osmosis treatment device includes two reverse-osmosis treated unit being arranged in series, and respectively one-level is anti-
Infiltration processing unit and two-pass reverse osmosis processing unit；Wherein,
Described first-stage reverse osmosis processing unit water after tentatively filtering preprocessed device carries out one
Level reverse-osmosis treated；Wherein, described first-stage reverse osmosis processing unit includes that two RO being arranged in parallel are anti-
Permeable membrane device；
Described two-pass reverse osmosis processing unit carries out two-pass reverse osmosis to the water after first-stage reverse osmosis processes
Process；Wherein, described two-pass reverse osmosis processing unit includes a RO reverse-osmosis membrane element.
17. according to the ultrapure water production system described in any one of claim 13-15, it is characterised in that
Described reverse osmosis treatment device includes that a reverse-osmosis treated unit, described reverse-osmosis treated unit include
One RO reverse-osmosis membrane element.
18. ultrapure water production systems according to claim 16, it is characterised in that when described instead
When infiltration processing unit includes concentrated water discharge assembly, the concentrated water discharge of described two-pass reverse osmosis processing unit
Non-return valve it is additionally provided with on pipeline.
19. 1 kinds of urea for vehicle solution preparation systems, it is characterised in that described urea for vehicle solution system
Standby system includes the ultrapure water production system described in any one of claim 1-18.
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| CN201620292186.7U CN205556330U (en) | 2016-04-08 | 2016-04-08 | Ultrapure water preparation system and automobile -used urea solution preparation system |
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| CN201620292186.7U CN205556330U (en) | 2016-04-08 | 2016-04-08 | Ultrapure water preparation system and automobile -used urea solution preparation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882635A (en) * | 2019-12-04 | 2020-03-17 | 攀枝花钢企欣宇化工有限公司 | Sodium sulfite solution preparation tank and preparation system for chlor-alkali |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882635A (en) * | 2019-12-04 | 2020-03-17 | 攀枝花钢企欣宇化工有限公司 | Sodium sulfite solution preparation tank and preparation system for chlor-alkali |
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