CN209906550U - Reverse osmosis pure water preparation system - Google Patents

Abstract

The utility model provides a reverse osmosis pure water preparation system, which comprises a raw water tank, a quartz sand filter tank, an activated carbon filter tank, a security filter, an EDI electric desalting device, a reverse osmosis filter mechanism and a pure water tank which are sequentially and adjacently connected through a conveying pipeline according to the water flow direction; a buffer plate is arranged above the quartz sand filter layer in the quartz sand filter tank, a water inlet is formed in the upper end of one side of the quartz sand filter tank, and a water outlet is formed in the lower end of the other side of the quartz sand filter tank; the top of the pure water tank is provided with an ultraviolet sterilization device; the method adopts a structure of four-stage pretreatment of quartz sand filtration, activated carbon filtration, security filtration and EDI electric desalting before the reverse osmosis process, thereby overcoming the defect that the equipment in the prior art needs to be frequently replaced, effectively reducing the deposition of mineral substances or metal ions on the surface of the reverse osmosis membrane, lowering the running cost of the equipment and ensuring that the pure water is not easy to deteriorate after being stored for a long time; it is widely suitable for matching use in pure water preparation.

Description

Reverse osmosis pure water preparation system

Technical Field

The utility model relates to a water treatment facilities especially relates to a reverse osmosis pure water preparation system.

Background

When the dilute solution and the concentrated solution with the same volume are respectively arranged at two sides of the same container, the middle part is blocked by a semipermeable membrane, the solvent in the dilute solution naturally passes through the semipermeable membrane to flow to the concentrated solution side, the liquid level at the concentrated solution side is higher than the liquid level of the dilute solution by a certain height, a pressure difference is formed to reach an osmotic balance state, and the pressure difference is osmotic pressure; if a pressure greater than the osmotic pressure is applied to the concentrate side, the solvent in the concentrate flows toward the dilute solution in a direction opposite to that of the original permeate, a process known as reverse osmosis.

At present, most of pure water systems used in many chemical plants, pharmaceutical factories, etc. are reverse osmosis filtration devices, which apply a certain pressure to water to make water molecules and ionic mineral elements pass through a reverse osmosis membrane, while most of inorganic salts (including heavy metals), organic matters, bacteria, viruses, etc. dissolved in water cannot permeate through the reverse osmosis membrane, so that the permeated pure water and the impermeable concentrated water are strictly separated, and charged ions, inorganic matters, colloidal particles, bacteria, organic matters, etc. in water can be effectively removed; in the using process, mineral substances such as calcium carbonate, calcium sulfate, silicon and metal ions are deposited on the surface of the reverse osmosis membrane and block the pores of the reverse osmosis membrane, so that the water yield of the reverse osmosis membrane is reduced, the desalting capacity is reduced, the efficiency and the quality of water production are affected, the reverse osmosis membrane needs to be replaced frequently, and the production and operation cost is increased; meanwhile, a plurality of manufacturers store prepared pure water by adopting pure water tanks, and if the pure water is not used in time, microorganisms are bred due to overlong storage time, so that the microorganism indexes exceed standards, the use requirements cannot be met, and resource waste is caused.

Disclosure of Invention

In view of the above situation, an object of the present invention is to provide a reverse osmosis pure water preparation system, which adopts the structure of quartz sand filtration-activated carbon filtration-security filtration-EDI electric desalting four-stage pretreatment before the reverse osmosis process, thereby overcoming the defect that the prior art device needs to frequently replace the reverse osmosis membrane, effectively reducing the deposition of minerals or metal ions on the surface of the reverse osmosis membrane, reducing the operation cost of the device, and utilizing the ultraviolet sterilization device to ensure that the pure water is not easy to deteriorate after being stored for a long time, the whole structure is scientific, reasonable, simple and compact, convenient to install and use, and has wide market prospect, and is convenient to popularize and use.

In order to realize the purpose, the reverse osmosis pure water preparation system comprises a raw water tank, a quartz sand filter tank, an activated carbon filter tank, a cartridge filter, an EDI electric desalting device, a reverse osmosis filter mechanism and a pure water tank which are sequentially and adjacently connected through a conveying pipeline according to the water flow direction; the quartz sand filtering tank is internally and respectively provided with a buffer plate and a quartz sand filtering layer, the buffer plate is positioned above the quartz sand filtering layer, the upper end of one side of the quartz sand filtering tank body is provided with a water inlet and is positioned above the buffer plate, and the lower end of the other side of the quartz sand filtering tank body is provided with a water outlet and is positioned below the quartz sand filtering layer; and an ultraviolet sterilization device is arranged at the top of the pure water tank.

In order to realize the optimization of the structure and the effect, the further measures are as follows: and a booster pump is arranged on the conveying pipeline between the raw water tank and the water inlet of the quartz sand filter tank.

The reverse osmosis filtering mechanism comprises a first-stage reverse osmosis filtering device, a middle water tank and a second-stage reverse osmosis filtering device which are sequentially and adjacently connected.

The input end of the first-stage reverse osmosis filtering device is connected with the output end of the EDI electric desalting device through a conveying pipeline, and the output end of the second-stage reverse osmosis filtering device is connected with the input end of the pure water tank through a conveying pipeline.

And the first-stage reverse osmosis filtering device and the EDI electric desalting device are provided with booster pumps on the conveying pipelines.

Two or three quartz sand filtering layers are arranged in the quartz sand filtering tank, and a certain spacing distance is arranged between the upper and lower adjacent quartz sand filtering layers.

The quartz sand filtering tank and the activated carbon filtering tank are both made of stainless steel materials, and the buffer plate is made of stainless steel mesh plates.

Two or three layers of activated carbon filter layers are arranged in the activated carbon filter tank.

The utility model discloses compare the produced beneficial effect of prior art:

the utility model (I) adopts the structure that the quartz sand filter tank, the activated carbon filter tank, the security filter and the EDI electric desalting device are arranged in sequence before the reverse osmosis process, so that the four-stage pretreatment of the raw water can be realized, and the impurities in the water, including mineral substances and the deposition of metal ions on the surface of the reverse osmosis membrane, can be effectively removed, thereby prolonging the service time of the reverse osmosis membrane, reducing the replacement times, obviously reducing the operation cost, improving the water production efficiency and ensuring the water production quality;

(II) the utility model discloses a pure water tank top is equipped with ultraviolet sterilization device, utilizes the ultraviolet wavelength can destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) among the bacterial virus in 240 ~ 280nm within range, causes the death of growth cell and/or regeneration cell, reaches the effect of disinfecting, can avoid pure water in the pure water tank to breed the microorganism through regularly disinfecting to prolong the save time of pure water, reached resources are saved and reduce the purpose of running cost;

(III) the utility model adopts the buffer board above the quartz sand filter layer in the quartz sand filter tank, when the quartz sand on the quartz sand filter layer can move around under the direct scouring action of water flow, the thickness distribution of the filter medium quartz sand on the quartz sand filter layer is uneven, the local filtering effect of the quartz sand filter layer is poor, the water flow pressure input in a water inlet concentration can be buffered through the buffer board, the quality of filtering treatment can be ensured, and the influence on the pure water treatment of the subsequent process can be avoided;

(IV) the utility model discloses a set gradually quartz sand before the reverse osmosis process and filter-the active carbon filters-security personnel filter-EDI electricity desalination level four preliminary treatment's structure thereby overcome prior art equipment and need often change reverse osmosis membrane's defect, can effectively reduce the deposit of mineral substance or metal ion on reverse osmosis membrane surface, the running cost who has reduced equipment is low, and utilize ultraviolet sterilizing equipment can ensure that the pure water is stored for a long time and be difficult for rotting, overall structure scientific and reasonable, simple compactness, and installation and convenient to use have apparent economic benefits and social.

The utility model is widely suitable for the matching use of pure water preparation.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the middle quartz sand filtering tank of the present invention.

In the figure: 1-raw water tank, 2-booster pump, 3-quartz sand filter tank, 31-buffer plate, 32-quartz sand filter layer, 4-activated carbon filter tank, 5-cartridge filter, 6-EDI electric desalting device, 7-primary reverse osmosis filter device, 8-intermediate water tank, 9-secondary reverse osmosis filter device, 10-pure water tank and 101-ultraviolet sterilization device.

Detailed Description

Referring to fig. 1 to 2, the present invention is realized as follows: a reverse osmosis pure water preparation system comprises a raw water tank 1, a quartz sand filter tank 3, an activated carbon filter tank 4, a cartridge filter 5, an EDI electric desalting device 6, a reverse osmosis filter mechanism and a pure water tank 10 which are sequentially and adjacently connected through a conveying pipeline according to the water flow direction; the quartz sand filtering tank 3 is internally provided with a buffer plate 31 and a quartz sand filtering layer 32 respectively, the buffer plate 31 is positioned above the quartz sand filtering layer 32, the upper end of one side of the quartz sand filtering tank body is provided with a water inlet and is positioned above the buffer plate 31, and the lower end of the other side of the quartz sand filtering tank body is provided with a water outlet and is positioned below the quartz sand filtering layer 32; the top of the pure water tank 10 is provided with an ultraviolet sterilization device 101, the top of the tank body of the pure water tank 10 is generally provided with an ultraviolet lamp for radiating ultraviolet rays, the ultraviolet wavelength is 240-280 nm, the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in bacteria and viruses can be damaged, growth cells and/or regeneration cells are killed, the pure water in the tank body is sterilized and disinfected regularly, and the storage life of the pure water is prolonged.

Referring to fig. 1, in the utility model, a booster pump 2 is arranged on the conveying pipeline between an original water tank 1 and a water inlet of a quartz sand filter tank 3, and the booster pump 2 is used to form a certain water flow pressure on the conveying pipeline, which is beneficial to rapid filtration and improves the production efficiency; the reverse osmosis filtering mechanism comprises a first-stage reverse osmosis filtering device 7, an intermediate water tank 8 and a second-stage reverse osmosis filtering device 9 which are sequentially and adjacently connected, and the preparation quality of pure water can be guaranteed by arranging the second-stage reverse osmosis filtering device; the input end of the first-stage reverse osmosis filter device 7 is connected with the output end of the EDI electric desalting device 6 through a conveying pipeline, and the output end of the second-stage reverse osmosis filter device 9 is connected with the input end of the pure water tank 10 through a conveying pipeline; the booster pump 2 is arranged on the conveying pipelines of the first-stage reverse osmosis filtering device 7 and the EDI electric desalting device 6 to form certain water flow pressure, so that rapid filtering can be promoted, and the efficiency is improved; the activated carbon filter tank 4 is made of stainless steel materials, and the stainless steel materials are not easy to corrode and durable, so that the service life of equipment can be prolonged; two or three active carbon filter layers are arranged in the active carbon filter tank 4, which is favorable for further improving the filter effect,

the activated carbon is used as a filter medium, so that peculiar smell, organic matters, colloid, iron and residual chlorine in water can be removed, free matters, microorganisms and partial heavy metal ions in the water can be filtered, the turbidity and the chroma of the water can be effectively reduced, and the content of the residual chlorine in the water is less than or equal to 0.1PPM after the water is treated by an activated carbon adsorption filter.

Referring to fig. 2, the quartz sand filtering layer 32 provided with two or three layers in the middle quartz sand filtering tank 3 of the present invention is beneficial to further improving the filtering effect, and the quartz sand is used as a filtering medium to filter the water with higher turbidity through the granular or non-granular quartz sand with a certain thickness under a certain pressure, so that suspended matters, organic matters, colloidal particles, microorganisms, chlorine, odor, partial heavy metal ions, etc. in the water can be effectively intercepted and removed, and the effects of reducing water turbidity and purifying water quality can be achieved; meanwhile, a certain spacing distance is arranged between the upper and lower adjacent quartz sand filtering layers 32, so that a certain water pressure is kept between the adjacent quartz sand filtering layers 32, and uniform and sufficient filtering is facilitated; quartz sand filters jar 3 and adopts the stainless steel material preparation to form, buffer board 31 adopts the stainless steel mesh board preparation to form, utilizes the stainless steel material non-corrodible, and durable can prolong equipment life reduces the maintenance cost of equipment, and the mesh board can be concentrated the rivers of input to the water inlet and guide the reposition of redundant personnel simultaneously, makes rivers evenly disperse on quartz sand filters jar 3's whole cross-section, realizes even abundant filtration, can ensure filter effect and quality.

As shown in fig. 1, the safety filter 5 of the present invention is a precision filter, and mostly adopts a stainless steel housing with a PP cotton filter element disposed therein for filtering out fine substances such as quartz sand and activated carbon particles after being filtered by a medium in water, and impurities such as suspended substances and microorganisms in water, which is beneficial to ensuring that water quality meets the requirement of a reverse osmosis process; the EDI electric desalting device 6 skillfully combines an electrodialysis technology and an ion exchange technology, utilizes high voltage of electrodes at two ends to move charged ions in water, and is matched with ion exchange resin and a selective resin film to accelerate the removal of the ions.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A reverse osmosis pure water preparation system is characterized by comprising a raw water tank (1), a quartz sand filter tank (3), an activated carbon filter tank (4), a cartridge filter (5), an EDI electric desalting device (6), a reverse osmosis filter mechanism and a pure water tank (10) which are sequentially and adjacently connected through a conveying pipeline according to the water flow direction; the quartz sand filtering tank (3) is internally provided with a buffer plate (31) and a quartz sand filtering layer (32) respectively, the buffer plate (31) is positioned above the quartz sand filtering layer (32), the upper end of one side of the quartz sand filtering tank body is provided with a water inlet and is positioned above the buffer plate (31), and the lower end of the other side of the quartz sand filtering tank body is provided with a water outlet and is positioned below the quartz sand filtering layer (32); the top of the pure water tank (10) is provided with an ultraviolet sterilization device (101).

2. A reverse osmosis pure water preparation system according to claim 1, wherein a booster pump (2) is provided on the transfer pipe between the raw water tank (1) and the water inlet of the quartz sand filtration tank (3).

3. A reverse osmosis pure water preparation system according to claim 1, wherein the reverse osmosis filtration mechanism comprises a primary reverse osmosis filtration device (7), an intermediate water tank (8) and a secondary reverse osmosis filtration device (9) which are adjacently connected in series.

4. A reverse osmosis pure water preparation system according to claim 3, wherein the input end of the primary reverse osmosis filtration device (7) is connected with the output end of the EDI electric desalting device (6) through a conveying pipeline, and the output end of the secondary reverse osmosis filtration device (9) is connected with the input end of the pure water tank (10) through a conveying pipeline.

5. A reverse osmosis pure water preparation system according to claim 4, wherein the delivery pipeline of the first stage reverse osmosis filtration device (7) and the EDI electric desalting device (6) is provided with a booster pump (2).

6. A reverse osmosis pure water preparation system according to claim 1, wherein two or three quartz sand filter layers (32) are provided in the quartz sand filter tank (3), and a certain spacing distance is provided between the upper and lower adjacent quartz sand filter layers (32).

7. A reverse osmosis pure water preparation system according to claim 1, wherein the quartz sand filtration tank (3) and the activated carbon filtration tank (4) are both made of stainless steel material, and the buffer plate (31) is made of stainless steel mesh plate.

8. A reverse osmosis pure water preparation system according to claim 1, wherein two or three layers of activated carbon filtration layers are provided in the activated carbon filtration tank (4).

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