CN110981029A - System is prepared to industry high pure water - Google Patents

System is prepared to industry high pure water Download PDF

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Publication number
CN110981029A
CN110981029A CN201911363940.6A CN201911363940A CN110981029A CN 110981029 A CN110981029 A CN 110981029A CN 201911363940 A CN201911363940 A CN 201911363940A CN 110981029 A CN110981029 A CN 110981029A
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China
Prior art keywords
water
filter
arc
filter plate
mixing
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Granted
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CN201911363940.6A
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Chinese (zh)
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CN110981029B (en
Inventor
董仕宏
吴倩倩
张世忠
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Suzhou Shijing Environmental Technology Co Ltd
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Suzhou Shijing Environmental Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/04—Non-contaminated water, e.g. for industrial water supply for obtaining ultra-pure water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Abstract

The invention discloses an industrial high-purity water preparation system, which comprises: the device comprises a combined filter, a medicament adding and mixing device, a precision filter, a primary reverse osmosis device, a secondary reverse osmosis device and a sterilization device which are sequentially connected through a main water pipeline, wherein the combined filter comprises a shell, and a water inlet device, a first filtering section and a second filtering section which are sequentially arranged in the shell from top to bottom; first filter stage supports filter plate, second arc including protective layer, first arc that from top to bottom set gradually and supports filter plate, third arc and support the filter plate and fill and be in protective layer and third arc support the first filter medium between the filter plate, the bottom of first filter stage pass through cone section with the second filter stage is connected. The industrial high-purity water preparation system provided by the invention can realize the preparation of high-purity water by treating water through the combined filter, the precision filter, the primary reverse osmosis device, the secondary reverse osmosis device and the sterilization device.

Description

System is prepared to industry high pure water
Technical Field
The invention relates to the field of pure water preparation, in particular to an industrial high-purity water preparation system.
Background
With the progress of science and technology, people have increasing material culture requirements, so that the requirements of not only daily water but also industrial water are higher and higher, and the commonly used industrial pure water adopts the following steps: the raw water is sequentially treated by a quartz sand filter, an activated carbon filter, a precision filter, a reverse osmosis device, a sterilization device and the like to prepare pure water with the quality meeting the requirements. In the prior art, a quartz sand filter and an activated carbon filter are generally two devices connected in sequence, so that the occupied area of the devices is increased, and a pump is generally required between the two devices to convey water. For example, patent CN201821433981.9 discloses a high-efficiency industrial pure water treatment device, which comprises a raw water pump, a multi-media filter, an activated carbon filter, a dosing device, a precision filter, a high-pressure pump, a reverse osmosis host, an intermediate water tank, an intermediate water pump, a mixing bed, a purification water tank, an ultraviolet sterilizer, and the like, wherein the multi-media filter and the activated carbon filter are connected in sequence.
In addition, in order to improve the water quality, a scale inhibitor is usually added, and the scale inhibitor can effectively prevent the water quality from generating dirt and improve the water quality. The effect of dispersing and uniformly mixing the scale inhibitor and water has great influence on the improvement of the drug effect and the water quality, so a medicament stirring and mixing device is particularly arranged in some products. For example, patent CN201821483241.6, it discloses an industry pure water treatment facility, wherein, handles incasement portion and is provided with the (mixing) shaft, and (mixing) shaft fixed surface is connected with the stirring piece, and (mixing) shaft one end fixedly connected with motor, processing case top pipe connection have the scale inhibitor case, and it drives the stirring piece through the motor and rotates, carries out abundant stirring to scale inhibitor and water in the processing case, can promote pure water treatment quality and effect. But it requires the additional introduction of a drive device: motors, which increase power consumption and cost.
Therefore, there is a need for a more reliable industrial high purity water production scheme that overcomes the above-mentioned deficiencies.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an industrial high-purity water preparation system aiming at the defects in the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that: an industrial high purity water production system comprising: a combined filter, a medicament adding and mixing device, a precise filter, a primary reverse osmosis device, a secondary reverse osmosis device and a sterilization device which are connected in sequence through a main water pipeline,
the combined filter comprises a shell, and a water inlet device, a first filtering section and a second filtering section which are arranged in the shell from top to bottom in sequence;
first filter stage supports filter plate, second arc including protective layer, first arc that from top to bottom set gradually and supports filter plate, third arc and support the filter plate and fill and be in protective layer and third arc support the first filter medium between the filter plate, the bottom of first filter stage pass through cone section with the second filter stage is connected.
Preferably, the water inlet device comprises a main water inlet pipe communicated with the main water conveying pipeline and a plurality of conical water outlet pipes arranged on the main water inlet pipe.
Preferably, the second filter stage includes a first nonwoven fabric layer, a second nonwoven fabric layer, and a second filter medium filled between the first nonwoven fabric layer and the second nonwoven fabric layer.
Preferably, the first arc-shaped support filter plate, the second arc-shaped support filter plate and the third arc-shaped support filter plate are all obliquely arranged, and the inclination directions of the two adjacent arc-shaped support filter plates are opposite.
Preferably, the first filter medium is quartz sand, and the second filter medium is activated carbon;
the diameters of filter holes formed in the first arc-shaped support filter plate, the second arc-shaped support filter plate and the third arc-shaped support filter plate are sequentially reduced, and two ends of the three arc-shaped support filter plates are fixedly connected with the inner wall of the shell;
the protective layer is the nylon filter cloth layer, protective layer and first arc support the first filter media between the filter plate, first arc support filter plate and second arc support the first filter media between the filter plate, the second arc supports the filter plate and the third arc supports the particle size of the first filter media between the filter plate and reduces in proper order.
Preferably, the medicament adding and mixing device and the combined filter are connected through a first water conveying pipeline, and a first water pump is arranged on the first water conveying pipeline;
the medicament adding and mixing device comprises a mixing box body, a turbine box arranged on the upper part of the mixing box body, a stirring impeller arranged in the mixing box body, a driving turbine arranged in the turbine box and coaxial with the stirring impeller, and a medicament storage tank arranged on the mixing box body.
Preferably, the scale inhibitor is stored in the medicament storage tank, and the medicament storage tank is connected with the mixing box body through a medicament pipeline;
the water inlet end of the turbine box is connected with the first water conveying pipeline, and the water outlet end of the turbine box is connected to the mixing box body through a second water conveying pipeline;
the water entering from the water inlet end of the turbine box flows into the mixing box body from the water outlet end of the turbine box after passing through the driving turbine so as to drive the driving turbine to rotate, and the stirring impeller is driven to rotate by the driving turbine.
Preferably, a medicine feeding device is arranged in the mixing box body, and the medicine feeding device comprises a medicine feeding pipe section communicated with the medicament pipeline, a conical mixing pipe section connected to the lower end of the medicine feeding pipe section, a water outlet ball connected to the lower end of the conical mixing pipe section, and a water inlet pipe section of which the first end is connected with the outer wall of the conical mixing pipe section and the second end is connected with the second water pipeline;
and a plurality of water outlet through holes are formed in the outer wall of the water outlet ball body.
Preferably, the first end of the water inlet pipe section is tangent to the outer wall of the conical mixing pipe section;
the water outlet through hole is a conical hole, and the diameter of the water outlet through hole is gradually reduced from the inner wall of the water outlet ball body to the outside.
Preferably, a first booster pump is arranged on a third water conveying pipeline between the precision filter and the primary reverse osmosis device, and a second booster pump is arranged on a fourth water conveying pipeline between the primary reverse osmosis device and the secondary reverse osmosis device;
and a fourth water conveying pipeline at the downstream of the second booster pump is connected with a water return pipe, and the outlet end of the water return pipe is connected to the water inlet end of the turbine box.
The invention has the beneficial effects that: according to the industrial high-purity water preparation system, the water is treated by the combined filter, the precision filter, the primary reverse osmosis device, the secondary reverse osmosis device and the sterilization device, so that the preparation of high-purity water can be realized;
according to the invention, the first filter section and the second filter section are arranged in the vertical direction to form the combined filter, so that the first filter medium and the second filter medium can be used for efficiently filtering water; the water discharged from the first filtering section enters the second filtering section through self-flow, so that a water delivery pump can be reduced, and the energy consumption is reduced; the first filtering section and the second filtering section are combined into one device and are sequentially arranged in the vertical direction, so that the installation space is saved, and the device is simplified; three filtering layers with arc-shaped bottom surfaces are formed by the three arc-shaped supporting filter plates to filter water, the pore diameters of the upper filtering layer and the lower filtering layer are sequentially reduced to form gradient filtering, and the filtering efficiency and the filtering effect can be improved;
the stirring impeller is used for stirring the water and the scale inhibitor in the mixing box body, so that the uniform mixing effect of the scale inhibitor and the water is greatly improved; by arranging the turbine box, the rotation of the stirring impeller can be realized by utilizing water inflow, a driving mechanism can be omitted, the equipment is simplified, and the energy consumption is reduced; by arranging the medicine feeding device, water and the scale inhibitor are mixed for the first time in the conical mixing pipe section and then enter the mixing box body, and are mixed for the second time under the stirring action of the stirring impeller, so that the mixing effect of the scale inhibitor and the water can be ensured, the effect of preventing the water quality from generating dirt can be improved, and the final water quality can be improved;
by arranging the return pipe, part of the water treated by the primary reverse osmosis device can be returned to the water inlet end of the turbine box for secondary treatment, so that the water quality of the finally obtained pure water can meet the requirement.
Drawings
FIG. 1 is a schematic configuration diagram of an industrial high-purity water production system in example 1 of the present invention;
FIG. 2 is a schematic structural view of a combination filter (unfilled filter media) in example 1 of the present invention;
FIG. 3 is a schematic view showing the construction of a combination filter (filled with a filter medium) in example 1 of the present invention;
fig. 4 is a schematic structural view of a drug adding and mixing device in example 1 of the present invention;
fig. 5 is a schematic structural view of a medicine injection device according to embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a water outlet through hole in embodiment 1 of the present invention;
FIG. 7 is a schematic configuration diagram of an industrial high-purity water production system according to example 2 of the present invention.
Description of reference numerals:
1-a combination filter; 10-water inlet device; 11-a first filtration stage; 12-a second filtration stage; 100-water inlet main pipe; 101-a conical water outlet pipe; 110-a protective layer; 111-a first arc-shaped support filter plate; 112-a second arc-shaped support filter plate; 113-a third arc-shaped support filter plate; 114 — a first filter medium; 115-a cone section; 120-a first nonwoven layer; 121-a second nonwoven layer; 122 — a second filter media;
2-medicament adding and mixing device; 20-mixing box body; 21-turbine box; 22-stirring impeller; 23-driving the turbine; 24-a medicament storage tank; 25-medicament line; 26-a drug feeding device; 200-a rotating shaft; 201, a bearing; 202, sealing rings; 260-a drug inlet pipe section; 261-a conical mixing pipe section; 262-water outlet ball body; 263-water inlet pipe section; 264-the first end of the water intake pipe section; 265-a second end of the water intake pipe section; 266-water outlet through holes;
3, a precision filter;
4-first-stage reverse osmosis device;
5-a second-stage reverse osmosis device;
6, a sterilizing device;
7-main water pipeline; 70-raw material water pipe; 71-a first water conveying pipeline; 72-a second water conveying pipeline; 73-a third water conveying pipeline; 74-a fourth water conveying pipeline; 75-raw water pump; 76-a first water pump; 77 — a first booster pump; 78-a second booster pump;
8, a water return pipe; 80-electromagnetic valve;
9-water quality detector.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 6, an industrial high purity water producing system of the present embodiment includes: a combined filter 1, a medicament adding and mixing device 2, a precise filter 3, a primary reverse osmosis device 4, a secondary reverse osmosis device 5 and a sterilizing device 6 which are connected in sequence through a main water pipeline 7,
the combined filter 1 comprises a shell, and a water inlet device 10, a first filtering section 11 and a second filtering section 12 which are arranged in the shell from top to bottom in sequence;
the first filtering section 11 comprises a protective layer 110, a first arc-shaped supporting filter plate 111, a second arc-shaped supporting filter plate 112, a third arc-shaped supporting filter plate 113 and a first filtering medium 114 filled between the protective layer 110 and the third arc-shaped supporting filter plate 113, which are sequentially arranged from top to bottom, and the bottom of the first filtering section 11 is connected with the second filtering section 12 through a cone section 115.
The main water transport pipeline 7 includes a raw material water pipe 70, a first water transport pipeline 71, a second water transport pipeline 72, a third water transport pipeline 73, and a fourth water transport pipeline 74. The combined filter 1 and the medicament adding and mixing device 2 are connected through a first water conveying pipeline 71, and a first water pump 76 is arranged on the first water conveying pipeline 71; the reagent adding and mixing device 2 is connected to the precision filter 3 through a pipeline, the precision filter 3 is connected to the first-stage reverse osmosis device 4 through a third water pipeline 73, and a first booster pump 77 is arranged on the third water pipeline 73; the primary reverse osmosis device 4 is connected to the secondary reverse osmosis device 5 through a fourth water conveying pipeline 74, and a second booster pump 78 is arranged on the fourth water conveying pipeline 74; the second-stage reverse osmosis device 5 is connected to the sterilizing device 6 through a pipeline, and pure water is discharged from the water outlet end of the sterilizing device 6.
Raw material water is conveyed to the combined filter 1 through a raw material water pump 75, sequentially passes through the first filtering section 11 and the second filtering section 12 for filtering, then enters the medicament adding and mixing device 2, is fully mixed with the added scale inhibitor, then enters the precision filter 3, and then passes through the first-stage reverse osmosis device 4, the second-stage reverse osmosis device 5 and the sterilizing device 6 to obtain high-purity water. The microfilter 3 (cartridge filter) prevents the fine particles in the combined filter 1 from flowing into the subsequent reverse osmosis membrane, and the pore size of the filter medium is preferably 1 to 5 μm, and the specific type of the microfilter 3 can be selected from conventional products. The sterilization device 6 is used for sterilizing and disinfecting the water treated by the reverse osmosis device, and may be an ozone sterilization device, an ultraviolet sterilization device, or the like.
More specific schemes are provided below:
example 1
On the basis, the water inlet device 10 further includes a water inlet main pipe 100 communicated with the main water conveying pipeline 7 and a plurality of conical water outlet pipes 101 arranged on the water inlet main pipe 100. Raw material water is conveyed to the main water conveying pipeline 7 by the raw material water pump 75 and then is discharged by the plurality of conical water outlet pipes 101, and the speed and the pressure of water discharge can be improved by arranging the conical water outlet pipes 101, so that the water is favorably filtered in the combined filter 1.
Further, the second filter stage 12 includes a first nonwoven fabric layer 120, a second nonwoven fabric layer 121, and a second filter medium 122 filled between the first nonwoven fabric layer 120 and the second nonwoven fabric layer 121.
Further, the first arc-shaped support filter plate 111, the second arc-shaped support filter plate 112, and the third arc-shaped support filter plate 113 are all inclined, and the inclination directions of two adjacent arc-shaped support filter plates are opposite.
Further, the first filter medium 114 is quartz sand, and the second filter medium 122 is activated carbon; the diameters of filter holes formed in the first arc-shaped support filter plate 111, the second arc-shaped support filter plate 112 and the third arc-shaped support filter plate 113 are sequentially reduced, and two ends of the three arc-shaped support filter plates are fixedly connected with the inner wall of the shell; the protective layer 110 is a nylon filter cloth layer, and the particle sizes of the first filter medium 114 between the protective layer 110 and the first arc-shaped support filter plate 111, the first filter medium 114 between the first arc-shaped support filter plate 111 and the second arc-shaped support filter plate 112, and the first filter medium 114 between the second arc-shaped support filter plate 112 and the third arc-shaped support filter plate 113 are sequentially reduced. And the aperture of the arc-shaped supporting filter plate positioned at the lower part is smaller than the grain diameter of the adjacent quartz sand at the upper part, so that the supporting and shaping effects on the quartz sand at the upper part are realized, and three filter layers with arc-shaped bottom surfaces are formed. The protective layer 110 is provided to reduce the scouring effect of the influent water on the uppermost filter layer surface.
Referring to fig. 1 to 3, the first arc-shaped support filter sheet 111 is inclined to the lower right, the second arc-shaped support filter sheet 112 is inclined to the lower left, and the third arc-shaped support filter sheet 113 is inclined to the lower right. Support the filter plate through three arcs and form three bottom surfaces and filter water for the filter layer of arc form, because the vortex guide effect of arc support filter plate, water can have the trend along arc form downflow, can increase the dwell time of water in the filter layer, the contact effect between reinforcing water and the filter medium to improve the filter effect. The pore diameters of the upper and lower filter layers are reduced in sequence to form gradient filtration, so that the filtration efficiency and the filtration effect can be improved. The filter plates are supported by the three arc-shaped support filter plates, so that the phenomenon of mutual permeation of media in the filter layers can be prevented, and three relatively independent and stable filter layers can be formed in the first filter section 11. The water discharged from the first filtering section 11 automatically flows into the second filtering section 12, so that a water delivery pump can be reduced, and the energy consumption is reduced. The first filtering section 11 and the second filtering section 12 are combined into one device and are sequentially arranged in the vertical direction, so that the installation space is saved, and the device is simplified.
The quartz sand layer with gradually reduced particle size is primarily filtered, and the activated carbon layer is used for filtering water again. After the water discharged from the first filtering section 11 passes through the cone section 115, the flow rate and pressure are increased, and the filtering efficiency of the second filtering section 12 can be improved. The first and second nonwoven fabric layers 120 and 121 can protect the intermediate activated carbon layer and reduce the outflow of fine activated carbon particles.
In a further preferred embodiment, the medicament adding and mixing device 2 and the combined filter 1 are connected through a first water conveying pipeline 71, and a first water pump 76 is arranged on the first water conveying pipeline 71;
the chemical adding and mixing device 2 includes a mixing tank 20, a turbine tank 21 provided at an upper portion of the mixing tank 20, a stirring impeller 22 provided inside the mixing tank 20, a drive turbine 23 provided inside the turbine tank 21 and coaxial with the stirring impeller 22, and a chemical storage tank 24 provided on the mixing tank 20.
The scale inhibitor is stored in the medicament storage tank 24, and the medicament storage tank 24 is connected with the mixing box body 20 through a medicament pipeline 25; the water inlet end of the turbine box 21 is connected with the first water conveying pipeline 71, and the water outlet end of the turbine box 21 is connected to the mixing box body 20 through the second water conveying pipeline 72;
the water entering from the water inlet end of the turbine box 21 passes through the driving turbine 23 and then flows into the mixing box 20 from the water outlet end of the turbine box 21, so as to drive the driving turbine 23 to rotate, and the driving turbine 23 drives the stirring impeller 22 to rotate.
The driving turbine 23 and the stirring impeller 22 are both fixed on a rotating shaft 200, the rotating shaft 200 is rotatably disposed in the mixing box 20, and the upper end of the rotating shaft extends into the turbine box 21. The upper and lower inner walls of the mixing box 20 are provided with bearings 201 to mount the rotating shaft 200, and the joint of the turbine box 21 and the mixing box 20 is further provided with a sealing ring 202 (which does not affect the normal rotation of the rotating shaft 200) to prevent the water in the turbine box 21 from directly flowing down into the mixing box 20 from the joint. It is understood that the driving turbine 23, the stirring impeller 22, the rotating shaft 200, the bearing 201, etc. are preferably made of corrosion-resistant materials to prolong the service life thereof.
Under the action of the first water pump 76, water enters the turbine box 21 at a certain flow rate and contacts with blades of the driving turbine 23, so that the driving turbine 23 is driven to rotate, and the water passing through the driving turbine 23 enters the mixing box 20 through the second water conveying pipeline 72 and is mixed with the scale inhibitor added into the mixing box 20. Because the stirring impeller 22 and the driving turbine 23 are coaxial, the driving turbine 23 drives the stirring impeller 22 to rotate while rotating, so that water and scale inhibitor in the mixing box body 20 are stirred, the uniform mixing effect of the scale inhibitor and the water is greatly improved, and the effects of preventing the water quality from generating dirt and improving the pure water treatment quality can be improved. And when the water inflow is larger, the rotating speed of the driving turbine 23 is faster, and the stirring effect of the stirring impeller 22 is stronger, so that the uniform mixing degree of the scale inhibitor and water can be improved along with the increase of the water inflow and the self-adaption. The scale inhibition effect can be improved through the stirring effect, the rotation of the stirring impeller 22 can be realized through water inlet, a driving mechanism can be omitted, the equipment is simplified, and the energy consumption is reduced.
Furthermore, a medicine feeding device 26 is arranged in the mixing box body 20, the medicine feeding device 26 comprises a medicine feeding pipe section 260 communicated with the medicine pipeline 25, a conical mixing pipe section 261 connected to the lower end of the medicine feeding pipe section 260, a water outlet ball 262 connected to the lower end of the conical mixing pipe section 261, and a water inlet pipe section 263 with a first end 264 connected with the outer wall of the conical mixing pipe section 261 and a second end 265 connected with the second water conveying pipeline 72; a plurality of water outlet through holes 266 are arranged on the outer wall of the water outlet ball 262. A switch may be provided on the medication line 25 to control dispensing. The scale inhibitor is prepared by selecting a conventional product.
More preferably, the first end 264 of the intake section is tangential to the outer wall of the conical mixing section 261; outlet throughbore 266 is a tapered bore which tapers in diameter outwardly from the inner wall of outlet ball 262.
The scale inhibitor in the medicament storage tank 24 flows downwards from the medicament pipeline 25 to the medicament inlet pipe section 260 and then enters the conical mixing pipe section 261; the water (with a certain flow velocity) discharged from the water outlet end of the turbine box 21 enters the water inlet pipe segment 263 through the second water conveying pipe 72, then enters the conical mixing pipe segment 261 along a tangent line, meets the scale inhibitor flowing vertically downwards, forms a mixed rotational flow, continues to flow downwards to the water outlet ball 262, flows in the rotational flow form on the water outlet ball 262, and then radially flows outwards from the water outlet through holes 266 densely arranged on the water outlet ball 262, and enters the mixing box body 20. Water and the scale inhibitor enter the conical mixing pipe section 261 from two perpendicular directions, so that the collision contact effect can be improved, and the uniform mixing effect can be further improved after the rotational flow is formed. The water outlet through holes 266 are tapered holes, so that the flow rate is increased when water flows out of the holes, and the uniform mixing is enhanced. Wherein, water and antisludging agent mix for the first time at toper mixing pipe section 261, then go on mixing again in the water spheroid 262 and then get into mixing box 20 in, carry out the secondary mixing under the stirring of impeller 22, can guarantee the mixing effect of antisludging agent and water, improve the effect that prevents quality of water and produce the dirt, can promote quality of water.
Example 2
Referring to fig. 7, in addition to embodiment 1, a water return pipe 8 is further connected to the fourth water conveying pipeline 74 downstream of the second booster pump 78, and an outlet end of the water return pipe 8 is connected to a water inlet end of the turbine box 21. The return pipe 8 is also provided with an electromagnetic valve 80. A water quality detector 9 is also arranged on the pipeline at the downstream of the sterilizing device 6 and is used for detecting the quality condition of the pure water, and the water quality detector can be selected from conventional products, such as a DZS-708 water quality detector. Both the fine filter 3 and the reverse osmosis unit can be selected from conventional products.
When the water quality detector 9 detects that the water quality does not meet the requirement, the electromagnetic valve 80 is opened, so that part of the water treated by the first-stage reverse osmosis device 4 flows back to the water inlet end of the turbine box 21, and then the water is treated again by the precision filter 3 and the first-stage reverse osmosis device 4, so as to ensure that the water quality of the finally obtained pure water meets the requirement. And the backflow water is introduced into the water inlet end of the turbine box 21, so that further power can be provided for the stirring of the stirring impeller 22, and the uniform mixing effect of the scale inhibitor and the water is improved.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.

Claims (10)

1. An industrial high-purity water preparation system, characterized by comprising: a combined filter, a medicament adding and mixing device, a precise filter, a primary reverse osmosis device, a secondary reverse osmosis device and a sterilization device which are connected in sequence through a main water pipeline,
the combined filter comprises a shell, and a water inlet device, a first filtering section and a second filtering section which are arranged in the shell from top to bottom in sequence;
first filter stage supports filter plate, second arc including protective layer, first arc that from top to bottom set gradually and supports filter plate, third arc and support the filter plate and fill and be in protective layer and third arc support the first filter medium between the filter plate, the bottom of first filter stage pass through cone section with the second filter stage is connected.
2. The industrial high purity water preparation system according to claim 1, wherein the water inlet means comprises a main water inlet pipe communicating with the main water conduit and a plurality of tapered water outlet pipes provided on the main water inlet pipe.
3. The industrial high purity water producing system according to claim 1, wherein the second filter stage comprises a first nonwoven fabric layer, a second nonwoven fabric layer, and a second filter medium filled between the first nonwoven fabric layer and the second nonwoven fabric layer.
4. The system for preparing industrial high-purity water according to claim 3, wherein the first arc-shaped supporting filter plate, the second arc-shaped supporting filter plate and the third arc-shaped supporting filter plate are all obliquely arranged, and the inclination directions of two adjacent arc-shaped supporting filter plates are opposite.
5. The industrial high purity water production system according to claim 4, wherein the first filter medium is quartz sand, and the second filter medium is activated carbon;
the diameters of filter holes formed in the first arc-shaped support filter plate, the second arc-shaped support filter plate and the third arc-shaped support filter plate are sequentially reduced, and two ends of the three arc-shaped support filter plates are fixedly connected with the inner wall of the shell;
the protective layer is the nylon filter cloth layer, protective layer and first arc support the first filter media between the filter plate, first arc support filter plate and second arc support the first filter media between the filter plate, the second arc supports the filter plate and the third arc supports the particle size of the first filter media between the filter plate and reduces in proper order.
6. The industrial high-purity water preparation system according to claim 1, wherein the chemical addition and mixing device and the combined filter are connected by a first water delivery pipeline, and a first water pump is arranged on the first water delivery pipeline;
the medicament adding and mixing device comprises a mixing box body, a turbine box arranged on the upper part of the mixing box body, a stirring impeller arranged in the mixing box body, a driving turbine arranged in the turbine box and coaxial with the stirring impeller, and a medicament storage tank arranged on the mixing box body.
7. The industrial high-purity water production system according to claim 6, wherein an antisludging agent is stored in the chemical storage tank, and the chemical storage tank is connected to the mixing tank through a chemical pipeline;
the water inlet end of the turbine box is connected with the first water conveying pipeline, and the water outlet end of the turbine box is connected to the mixing box body through a second water conveying pipeline;
the water entering from the water inlet end of the turbine box flows into the mixing box body from the water outlet end of the turbine box after passing through the driving turbine so as to drive the driving turbine to rotate, and the stirring impeller is driven to rotate by the driving turbine.
8. The industrial high-purity water preparation system according to claim 6, wherein a feed device is arranged in the mixing tank body, and the feed device comprises a feed pipe section communicated with the chemical pipeline, a conical mixing pipe section connected to the lower end of the feed pipe section, a water outlet ball connected to the lower end of the conical mixing pipe section, and a water inlet pipe section of which a first end is connected with the outer wall of the conical mixing pipe section and a second end is connected with the second water pipeline;
and a plurality of water outlet through holes are formed in the outer wall of the water outlet ball body.
9. The industrial high purity water production system of claim 8 wherein the first end of the water inlet pipe section is tangential to the outer wall of the conical mixing pipe section;
the water outlet through hole is a conical hole, and the diameter of the water outlet through hole is gradually reduced from the inner wall of the water outlet ball body to the outside.
10. The industrial high-purity water producing system according to claim 6, wherein a first booster pump is provided on a third water transport pipeline between the ultrafilter and the primary reverse osmosis device, and a second booster pump is provided on a fourth water transport pipeline between the primary reverse osmosis device and the secondary reverse osmosis device;
and a fourth water conveying pipeline at the downstream of the second booster pump is connected with a water return pipe, and the outlet end of the water return pipe is connected to the water inlet end of the turbine box.
CN201911363940.6A 2019-12-26 2019-12-26 Industrial high-purity water preparing system Active CN110981029B (en)

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