CN110981029B - Industrial high-purity water preparing system - Google Patents

Industrial high-purity water preparing system Download PDF

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Publication number
CN110981029B
CN110981029B CN201911363940.6A CN201911363940A CN110981029B CN 110981029 B CN110981029 B CN 110981029B CN 201911363940 A CN201911363940 A CN 201911363940A CN 110981029 B CN110981029 B CN 110981029B
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water
filter
arc
filter plate
mixing
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CN110981029A (en
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董仕宏
吴倩倩
张世忠
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Suzhou Shijing Technology Co ltd
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Suzhou Shijing 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 preparing system, which comprises: the device comprises a combined filter, a medicament adding and mixing device, a precise filter, a primary reverse osmosis device, a secondary reverse osmosis device and a sterilizing device which are sequentially connected through a main water conveying 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; the first filter section comprises a protection layer, a first arc-shaped supporting filter plate, a second arc-shaped supporting filter plate, a third arc-shaped supporting filter plate and a first filter medium filled between the protection layer and the third arc-shaped supporting filter plate, wherein the protection layer, the first arc-shaped supporting filter plate, the second arc-shaped supporting filter plate, the third arc-shaped supporting filter plate and the first filter medium are sequentially arranged from top to bottom, and the bottom of the first filter section is connected with the second filter section through a conical body section. The industrial high-purity water preparing system can realize the preparation of high-purity water by combining the filter, the precise filter, the primary reverse osmosis device, the secondary reverse osmosis device and the sterilization device to treat water.

Description

Industrial high-purity water preparing system
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 technology, people have increasingly growing material culture demands, so that not only daily water, but also industrial water has increasingly high requirements, and the general industrial pure water adopts the following steps: 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 quality meeting requirements. In the prior art, the quartz sand filter and the activated carbon filter are usually two devices connected in sequence, thus the occupied area of the devices is increased, and a pump is also usually needed between the two devices to convey water. For example, CN201821433981.9 discloses a high-efficiency industrial pure water treatment device, which comprises a raw water pump, a multi-medium 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 mixed bed, a purified water tank, an ultraviolet sterilizer and the like, wherein the multi-medium 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, so that the scale inhibitor can effectively prevent the water quality from generating scale and can improve the water quality. The dispersing and uniformly mixing effect of the scale inhibitor and water has great influence on the drug effect and the improvement of water quality, so that a medicament stirring and mixing device is especially arranged in some products. For example, patent CN201821483241.6 discloses an industrial pure water treatment device, wherein, the inside (mixing) shaft that is provided with of treatment box, (mixing) shaft surface fixedly connected with stirring piece, (mixing) shaft one end fixedly connected with motor, treatment box upper side 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 treatment box, can promote pure water treatment quality and effect. But it requires the additional introduction of a driving 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 drawbacks.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an industrial high-purity water preparing system aiming at the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: an industrial high purity water production system comprising: a combined filter, a medicament adding and mixing device, a precision filter, a first-stage reverse osmosis device, a second-stage reverse osmosis device and a sterilizing device which are sequentially connected through a main water conveying pipeline,
the combined filter comprises a shell, a water inlet device, a first filtering section and a second filtering section which are sequentially arranged in the shell from top to bottom;
the first filter section comprises a protection layer, a first arc-shaped supporting filter plate, a second arc-shaped supporting filter plate, a third arc-shaped supporting filter plate and a first filter medium filled between the protection layer and the third arc-shaped supporting filter plate, wherein the protection layer, the first arc-shaped supporting filter plate, the second arc-shaped supporting filter plate, the third arc-shaped supporting filter plate and the first filter medium are sequentially arranged from top to bottom, and the bottom of the first filter section is connected with the second filter section through a conical body section.
Preferably, the water inlet device comprises a water inlet main pipe communicated with the main water conveying pipeline and a plurality of conical water outlet pipes arranged on the water inlet main pipe.
Preferably, the second filter stage comprises a first nonwoven layer, a second nonwoven layer and a second filter medium filled between the first nonwoven layer and the second nonwoven 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 the 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 a nylon filter cloth layer, the particle size of a first filter medium between the protective layer and a first arc-shaped support filter plate is sequentially reduced, and the particle size of a first filter medium between the first arc-shaped support filter plate and a second arc-shaped support filter plate is sequentially reduced.
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 portion 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 the 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 comprises a medicine feeding pipe section communicated with the medicine 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 feeding pipe section with a first end connected with the outer wall of the conical mixing pipe section and a second end connected with the second water conveying pipeline;
the outer wall of the water outlet sphere is provided with a plurality of water outlet through holes.
Preferably, 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 outwards from the inner wall of the water outlet sphere.
Preferably, a first booster pump is arranged on a third water pipeline between the precise filter and the first-stage reverse osmosis device, and a second booster pump is arranged on a fourth water pipeline between the first-stage reverse osmosis device and the second-stage reverse osmosis device;
and a water return pipe is connected to the fourth water conveying pipeline at the downstream of the second booster pump, and the outlet end of the water return pipe is connected to the water inlet end of the turbine box.
The beneficial effects of the invention are as follows: according to the industrial high-purity water preparing system, water is treated by the combined filter, the precise filter, the primary reverse osmosis device, the secondary reverse osmosis device and the sterilization device, so that high-purity water can be prepared;
according to the invention, the first filter section and the second filter section are arranged along the vertical direction to form the combined filter, so that the first filter medium and the second filter medium can be utilized to efficiently filter water; the water discharged from the first filtering section enters the second filtering section through self-flowing, 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 arc-shaped filter layers with arc-shaped bottom surfaces are formed by the three arc-shaped support filter plates to filter water, the pore diameters of the upper filter layer and the lower filter layer are sequentially reduced, gradient filtration is formed, and the filtration efficiency and the filtration effect can be improved;
according to the invention, 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 the water inlet, a driving mechanism can be omitted, equipment is simplified, and energy consumption is reduced; through setting up the medicine device, make water and antisludging agent mix for the first time in the toper mixing tube section, then enter the mixing box again, mix for the second time under the stirring action of the impeller, thus can guarantee antisludging agent and water mixing effect, improve and prevent the water quality from producing the effect of dirt, can promote the final water quality;
according to the invention, through arranging the return pipe, part of water treated by the first-stage reverse osmosis device can flow back to the water inlet end of the turbine box for further treatment, so that the water quality of the finally obtained pure water can meet the requirement.
Drawings
FIG. 1 is a schematic diagram showing the construction of an industrial high purity water producing system according to example 1 of this invention;
FIG. 2 is a schematic view of the structure of a combination filter (unfilled filter medium) in example 1 of the present invention;
FIG. 3 is a schematic view of the structure of the combination filter (filled with filter media) in example 1 of the present invention;
fig. 4 is a schematic structural view of a medicine adding and mixing device in embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a drug delivery device in embodiment 1 of the present invention;
fig. 6 is a schematic view of the structure of the water outlet hole in embodiment 1 of the present invention;
FIG. 7 is a schematic view showing the construction of an industrial high purity water producing system according to example 2 of this invention.
Reference numerals illustrate:
1-a combination filter; 10-a water inlet device; 11-a first filtration section; 12-a second filtering section; 100-a main water inlet pipe; 101-a conical water outlet pipe; 110-a protective layer; 111-a first arc support filter plate; 112-a second arc support filter plate; 113-a third arc support filter plate; 114-a first filter medium; 115-cone section; 120-a first nonwoven layer; 121-a second nonwoven layer; 122-a second filter medium;
2-a medicament adding and mixing device; 20-a mixing box body; 21-a turbine box; 22-stirring impeller; 23-driving a turbine; 24-a medicament storage tank; 25-a medicament pipeline; 26-a medicine feeding device; 200-a rotating shaft; 201-a bearing; 202, a sealing ring; 260-a medicine feeding pipe section; 261-conical mixing tube section; 262-water outlet sphere; 263-a water inlet pipe section; 264—a first end of the water inlet pipe section; 265-the second end of the water inlet pipe section; 266-a water outlet through hole;
3-a precision filter;
4-a first-stage reverse osmosis device;
5-a secondary reverse osmosis device;
6-a sterilizing device;
7-a main water delivery pipeline; 70-a raw material water pipe; 71—a first water line; 72-a second water delivery pipeline; 73-a third water delivery pipeline; 74-a fourth water delivery pipeline; 75-a raw material water pump; 76—a first water pump; 77-a first booster pump; 78-a second booster pump;
8-a water return pipe; 80-an electromagnetic valve;
9-a water quality detector.
Detailed Description
The present invention is described in further detail below with reference to examples to enable those skilled in the art to practice the same by referring 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 this embodiment includes: a combined filter 1, a medicament adding and mixing device 2, a precision filter 3, a first-stage reverse osmosis device 4, a second-stage reverse osmosis device 5 and a sterilizing device 6 which are sequentially connected through a main water conveying pipeline 7,
the combined filter 1 comprises a shell, a water inlet device 10, a first filtering section 11 and a second filtering section 12 which are sequentially arranged in the shell from top to bottom;
the first filter segment 11 includes a protective layer 110, a first arc-shaped support filter plate 111, a second arc-shaped support filter plate 112, a third arc-shaped support filter plate 113, and a first filter medium 114 filled between the protective layer 110 and the third arc-shaped support filter plate 113, which are sequentially disposed from top to bottom, and the bottom of the first filter segment 11 is connected to the second filter segment 12 through a cone segment 115.
The main water pipe 7 includes a raw material water pipe 70, a first water pipe 71, a second water pipe 72, a third water pipe 73, and a fourth water pipe 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 medicament adding and mixing device 2 is connected to the precise filter 3 through a pipeline, the precise filter 3 is connected to the primary reverse osmosis device 4 through a third water conveying pipeline 73, and a first booster pump 77 is arranged on the third water conveying pipeline 73; the first-stage reverse osmosis device 4 is connected to the second-stage 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 secondary 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 water is conveyed to a combined filter 1 through a raw water pump 75, is filtered through a first filtering section 11 and a second filtering section 12 in sequence, then enters a medicament adding and mixing device 2, is fully mixed with an added scale inhibitor, then enters a precision filter 3, and then passes through a primary reverse osmosis device 4, a secondary reverse osmosis device 5 and a sterilizing device 6 to obtain high-purity water. Among them, the fine filter 3 (cartridge filter) can prevent 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 μm to 5 μm, and the specific kind of the fine filter 3 can be selected from conventional products. The sterilization device 6 is used for sterilizing the water treated by the reverse osmosis device, and may be an ozone sterilization device, an ultraviolet sterilization device, or the like, and in this embodiment, an ultraviolet sterilizer is preferable.
More specific schemes are provided below:
example 1
On the basis of the above, further, the water inlet device 10 comprises 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 water is conveyed to the main water conveying pipeline 7 by the raw water pump 75 and then is discharged by the plurality of conical water outlet pipes 101, and the speed and pressure of water discharge can be improved by arranging the conical water outlet pipes 101, so that the filtering of the water in the combined filter 1 is facilitated.
Further, the second filter stage 12 includes a first nonwoven layer 120, a second nonwoven layer 121, and a second filter medium 122 filled between the first nonwoven layer 120 and the second nonwoven layer 121.
Further, the first arc-shaped supporting filter plate 111, the second arc-shaped supporting filter plate 112 and the third arc-shaped supporting filter plate 113 are all obliquely arranged, and the oblique directions of the two adjacent arc-shaped supporting 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 the filter holes formed on 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 each 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 size 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 wherein the aperture of the arc-shaped supporting filter plate at the lower part is smaller than the particle diameter of quartz sand at the upper part adjacent to the arc-shaped supporting filter plate, so that the supporting and shaping functions of 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 scouring of the uppermost filter layer surface by incoming water.
Referring to fig. 1 to 3, the first arc-shaped support filter plate 111 is inclined downward and rightward, the second arc-shaped support filter plate 112 is inclined downward and leftward, and the third arc-shaped support filter plate 113 is inclined downward and rightward. The three filter layers with the arc-shaped bottom surfaces are formed by the three arc-shaped support filter plates to filter water, and due to the turbulent flow guiding effect of the arc-shaped support filter plates, the water has a trend of flowing downwards along the arc shape, so that the residence time of the water in the filter layers can be prolonged, the contact effect between the water and the filter media is enhanced, and the filtering effect is improved. The pore diameters of the upper filtering layer and the lower filtering layer are sequentially reduced to form gradient filtration, so that the filtration efficiency and the filtration effect can be improved. The three arc-shaped support filter plates are used for supporting, so that the phenomenon of mutual permeation of media in each filter layer 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 filter stage 11 enters the second filter stage 12 through self-flowing, so that a water delivery pump can be reduced, and the energy consumption is reduced. The first filter segment 11 and the second filter segment 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 subjected to primary filtration, and the activated carbon layer is used for filtering water again. After the water discharged from the first filter stage 11 passes through the cone-shaped body stage 115, the flow rate and pressure are increased, and the filtering efficiency of the second filter stage 12 can be improved. The first nonwoven fabric layer 120 and the second nonwoven fabric layer 121 can form a protection for the middle activated carbon layer and reduce outflow of fine activated carbon particles.
In a further preferred embodiment, the medicament adding and mixing device 2 and the combination filter 1 are connected by a first water delivery line 71, the first water delivery line 71 being provided with a first water pump 76;
the chemical adding and mixing device 2 includes a mixing box 20, a turbine box 21 provided at an upper portion of the mixing box 20, a stirring impeller 22 provided inside the mixing box 20, a drive turbine 23 provided inside the turbine box 21 and coaxial with the stirring impeller 22, and a chemical storage tank 24 provided on the mixing box 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 a first water conveying pipeline 71, and the water outlet end of the turbine box 21 is connected to the mixing box body 20 through a 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 stirring impeller 22 is driven to rotate by the driving turbine 23.
The driving turbine 23 and the stirring impeller 22 are fixedly connected to a rotating shaft 200, the rotating shaft 200 is rotatably arranged in the mixing box 20, and the upper end of the rotating shaft extends into the turbine box 21. Bearings 201 are provided on the upper and lower inner walls of the mixing box 20 to mount the rotation shaft 200, and a sealing ring 202 (which does not affect the normal rotation of the rotation shaft 200) is further provided at the junction of the turbine box 21 and the mixing box 20 to prevent water in the turbine box 21 from directly flowing down into the mixing box 20 from the junction. It will be appreciated that the drive turbine 23, the impeller 22, the shaft 200, the bearing 201, etc. are preferably made of a corrosion resistant material to extend their useful life.
Under the action of the first water pump 76, water enters the turbine box 21 at a certain flow rate, contacts with blades of the driving turbine 23, and drives the driving turbine 23 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 driving the turbine 23 to rotate, thereby stirring the water and the scale inhibitor in the mixing box 20, greatly improving the mixing effect of the scale inhibitor and the water, and improving the effects of preventing the water quality from generating dirt and improving the pure water treatment quality. 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 mixing degree of the scale inhibitor and the water can be increased along with the increase of the water inflow and the self-adaption improvement. The scale inhibition effect can be improved through the stirring effect, the rotation of the stirring impeller 22 can be realized through water inflow, a driving mechanism can be omitted, equipment is simplified, and energy consumption is reduced.
Further, a medicine feeding device 26 is disposed in the mixing box 20, and the medicine feeding device 26 includes a medicine feeding pipe section 260 connected to the medicine feeding pipe section 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 to the outer wall of the conical mixing pipe section 261 and a second end 265 connected to the second water delivery pipe 72; a plurality of water outlet holes 266 are provided on the outer wall of the water outlet sphere 262. A switch may be provided on the medicament line 25 to control the discharge of medicament. The scale inhibitor is prepared from conventional products.
More preferably, the first end 264 of the inlet pipe section is tangential to the outer wall of the conical mixing pipe section 261; the water outlet through hole 266 is a tapered hole whose diameter gradually decreases from the inner wall of the water outlet sphere 262 to the outside.
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 rate) discharged from the water outlet end of the turbine housing 21 enters the water inlet pipe section 263 through the second water delivery pipe 72, then enters the conical mixing pipe section 261 along a tangential line, meets the scale inhibitor flowing vertically downwards, thereby forming a mixed rotational flow, continuously flows downwards to the water outlet ball 262, flows in the rotational flow form on the water outlet ball 262, and then flows out radially outwards from the water outlet holes 266 densely arranged on the water outlet ball 262, and enters the mixing housing 20. The water and the scale inhibitor enter from two perpendicular directions in the conical mixing tube section 261, so that the collision contact effect can be improved, and the mixing effect can be further improved after the rotational flow is formed. The water outlet holes 266 are tapered holes, which increase the flow rate as water flows out of them, facilitating enhanced mixing. Wherein, water and scale inhibitor carry out the first mixing in toper mixing tube section 261, then go out in the water spheroid 262 again and continue the mixing again and get into mixing box 20, carry out the secondary mixing under the stirring effect of impeller 22, can guarantee the mixing effect of scale inhibitor and water, improve the effect that prevents that quality of water from producing the dirt, can promote quality of water.
Example 2
Referring to fig. 7, further on the basis of embodiment 1, a water return pipe 8 is connected to the fourth water delivery pipe 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 housing 21. The return pipe 8 is also provided with a solenoid valve 80. A water quality detector 9 is also provided in the line downstream of the sterilizing device 6 for detecting the quality of pure water, which may be selected from conventional products such as the DZS-708 water quality detector. The fine filter 3 and the reverse osmosis device may 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 that the water quality of the finally obtained pure water can meet the requirement. And because the water which flows back is reintroduced into the water inlet end of the turbine box 21, further power can be provided for stirring of the stirring impeller 22 so as to improve the uniform mixing effect of the scale inhibitor and the water.
Although embodiments of the present invention have been disclosed above, it is not limited to the use of the description and embodiments, it is well suited to various fields of use for the invention, and further modifications may be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the particular details without departing from the general concepts defined in the claims and the equivalents thereof.

Claims (5)

1. An industrial high purity water producing system, comprising: a combined filter, a medicament adding and mixing device, a precision filter, a first-stage reverse osmosis device, a second-stage reverse osmosis device and a sterilizing device which are sequentially connected through a main water conveying pipeline,
the combined filter comprises a shell, a water inlet device, a first filtering section and a second filtering section which are sequentially arranged in the shell from top to bottom;
the first filter section comprises a protective layer, a first arc-shaped supporting filter plate, a second arc-shaped supporting filter plate, a third arc-shaped supporting filter plate and a first filter medium filled between the protective layer and the third arc-shaped supporting filter plate which are sequentially arranged from top to bottom, and the bottom of the first filter section is connected with the second filter section through a conical section;
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 at 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;
the chemical storage tank is connected with the mixing box body through a chemical pipeline, and a chemical feeding device is arranged in the mixing box body; 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 medicine feeding device through the second water conveying pipeline; the water entering from the water inlet end of the turbine box flows into the medicine feeding device 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;
the medicine feeding device comprises a medicine feeding pipe section communicated with a medicine 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 with a first end connected with the outer wall of the conical mixing pipe section and a second end connected with a second water conveying pipeline; a plurality of water outlet through holes are formed in the outer wall of the water outlet sphere; 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 gradually decreases outwards from the inner wall of the water outlet sphere; a first booster pump is arranged on a third water conveying pipeline between the precise 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 water return pipe is connected to the fourth water conveying pipeline at the downstream of the second booster pump, and the outlet end of the water return pipe is connected to the water inlet end of the turbine box.
2. The industrial high purity water producing system according to claim 1, wherein the water inlet means comprises a main water inlet pipe communicating with the main water pipe and a plurality of tapered water outlet pipes provided on the main water inlet pipe.
3. The industrial high purity water producing system of claim 1 wherein the second filter stage comprises a first nonwoven layer, a second nonwoven layer, and a second filter medium filled between the first nonwoven layer and the second nonwoven layer.
4. The system for preparing industrial high purity water according to claim 3, wherein the first arc-shaped support filter plate, the second arc-shaped support filter plate, and the third arc-shaped support filter plate are all disposed obliquely, and the oblique directions of the adjacent two arc-shaped support filter plates are opposite.
5. The industrial high purity water producing system of claim 4 wherein the first filter medium is quartz sand and the second filter medium is activated carbon;
the diameters of the 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 a nylon filter cloth layer, the particle size of a first filter medium between the protective layer and a first arc-shaped support filter plate is sequentially reduced, and the particle size of a first filter medium between the first arc-shaped support filter plate and a second arc-shaped support filter plate is sequentially reduced.
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