CN211004930U - Ultrapure water preparation system - Google Patents
Ultrapure water preparation system Download PDFInfo
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- CN211004930U CN211004930U CN201921880126.7U CN201921880126U CN211004930U CN 211004930 U CN211004930 U CN 211004930U CN 201921880126 U CN201921880126 U CN 201921880126U CN 211004930 U CN211004930 U CN 211004930U
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- 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 embodiment of the utility model discloses an ultrapure water preparation system, which relates to the technical field of water purification, and comprises a pretreatment unit, a reverse osmosis unit, an EDI unit and a polishing mixed bed unit which are connected in sequence; the reverse osmosis unit comprises a security filter, a first-stage high-pressure pump, a first-stage reverse osmosis device, a first-stage RO water tank, a second-stage high-pressure pump, a second-stage reverse osmosis device and a second-stage RO water tank which are connected in sequence; the EDI unit comprises an EDI water supply pump, an ultraviolet sterilizer, a first precision filter, an EDI device, a desalting water tank, a pure water pump and a TOC remover which are connected in sequence; second grade RO water tank with the EDI working shaft is connected to can purify the running water into ultrapure water, promote the quality of resident's water, improve resident's water and experience.
Description
Technical Field
The utility model relates to a water purification technology field especially relates to an ultrapure water preparation system.
Background
With the continuous improvement of living standard of people, more and more people begin to pay attention to water safety. At present, most users directly use tap water, but the tap water also contains a large amount of impurities, and the direct drinking of the tap water can possibly harm the health of people. It can be seen that how to purify tap water becomes a technical problem which needs to be solved urgently in the field.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem that will solve is how to purify the running water and be ultrapure water.
In order to solve the above problem, an embodiment of the present invention provides an ultrapure water preparation system, which includes a pretreatment unit, a reverse osmosis unit, an EDI unit, and a polishing mixed bed unit, which are connected in sequence; the reverse osmosis unit comprises a security filter, a first-stage high-pressure pump, a first-stage reverse osmosis device, a first-stage RO water tank, a second-stage high-pressure pump, a second-stage reverse osmosis device and a second-stage RO water tank which are connected in sequence; the EDI unit comprises an EDI water supply pump, an ultraviolet sterilizer, a first precision filter, an EDI device, a desalting water tank, a pure water pump and a TOC remover which are connected in sequence; the second-level RO water tank is connected with the EDI water supply pump.
The pretreatment unit comprises a raw water tank, a raw water pump, a multi-media filter and an activated carbon filter which are sequentially connected, wherein the activated carbon filter is connected with the cartridge filter.
The polishing mixed bed unit comprises a polishing mixed bed and a second precision filter which are sequentially connected, and the polishing mixed bed is connected with the TOC remover.
Its further technical scheme does, ultrapure water preparation system still includes the cleaning unit, the cleaning unit is including the washing water tank, scavenging pump and the cleaning filter who connects gradually, the cleaning filter with reverse osmosis unit and EDI unit are connected.
The ultrapure water preparation system further comprises a backwashing unit, wherein the backwashing unit comprises a backwashing pump and a backwashing filter which are sequentially connected, and the backwashing pump is connected with the reverse osmosis unit.
The further technical proposal is that the backwashing filter is a multi-medium filter or an activated carbon filter.
The further technical scheme is that a reducing agent adding device is arranged between the pretreatment unit and the reverse osmosis unit.
The further technical scheme is that a scale inhibitor adding device is arranged between the pretreatment unit and the reverse osmosis unit.
The ultrapure water preparation system further comprises a P L C controller, wherein the pretreatment unit, the reverse osmosis unit, the EDI unit, the polishing mixed bed unit, the cleaning unit and the backwashing unit are connected with the P L C controller and controlled by the P L C controller.
The embodiment of the utility model provides an ultrapure water preparation system, ultrapure water preparation system includes pretreatment unit, reverse osmosis unit, EDI unit and polishing mixed bed unit; the reverse osmosis unit comprises a security filter, a first-stage high-pressure pump, a first-stage reverse osmosis device, a first-stage RO water tank, a second-stage high-pressure pump, a second-stage reverse osmosis device and a second-stage RO water tank which are connected in sequence; the EDI unit comprises an EDI water supply pump, an ultraviolet sterilizer, a first precision filter, an EDI device, a desalting water tank, a pure water pump and a TOC remover which are connected in sequence; second grade RO water tank with the EDI working shaft is connected to can purify the running water into ultrapure water, promote the quality of resident's water, improve resident's water and experience.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
FIG. 1 is a schematic structural view of an ultrapure water preparation system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a cleaning unit of an ultrapure water preparation system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a backwashing unit of an ultrapure water preparation system according to an embodiment of the present invention.
Reference numerals
The pretreatment unit 10, the reverse osmosis unit 20, the EDI unit 30, the polishing mixed bed unit 40, the cleaning unit 50, the backwashing unit 60, the reducing agent adding device 70, the scale inhibitor adding device 80, the raw water tank 11, the raw water pump 12, the multimedia filter 13, the activated carbon filter 14, the cartridge filter 21, the primary high-pressure pump 22, the primary reverse osmosis device 23, the primary RO water tank 24, the secondary high-pressure pump 25, the secondary reverse osmosis device 26, the secondary RO water tank 27, the EDI water supply pump 31, the ultraviolet sterilizer 32, the first ultrafilter 33, the EDI device 34, the desalted water tank 35, the pure water pump 36, the TOC remover 37, the polishing mixed bed 41, the second ultrafilter 42, the cleaning water tank 51, the cleaning pump 52, the cleaning filter 53, the backwashing pump 61, and the backwashing filter 62.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, wherein like component numbers represent like components. It is obvious that the embodiments to be described below are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the embodiments of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the description of the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Referring to fig. 1 to 3, an embodiment of the present invention provides an ultrapure water preparation system, which includes a pretreatment unit 10, a reverse osmosis unit 20, an EDI unit 30, and a polishing mixed bed unit 40 connected in sequence.
The reverse osmosis unit 20 comprises a cartridge filter 21, a primary high-pressure pump 22, a primary reverse osmosis device 23, a primary RO water tank 24, a secondary high-pressure pump 25, a secondary reverse osmosis device 26 and a secondary RO water tank 27 which are connected in sequence. The secondary RO water tank 27 is connected to an EDI water supply pump 31 of the EDI (Electrodeionization) unit 30.
The role of the cartridge filter 21 is to trap particles larger than 5 μm from leaks in the filter product water into the reverse osmosis unit 20.
The reverse osmosis device is (the first reverse osmosis device 23 and the second reverse osmosis device 26) the most important desalination device in the process, and the reverse osmosis membrane group with the extremely high desalination capacity is an actuating mechanism of the whole desalination system. It is mainly responsible for removing soluble salt, colloid, organic matter and microbe in water to make the water reach the requirement.
The EDI unit 30 includes an EDI water supply pump 31, an ultraviolet sterilizer 32, a first ultrafilter 33, an EDI device 34, a demineralized water tank 35, a pure water pump 36, and a TOC remover 37, which are connected in this order.
The water from the municipal water source contains dissolved salts such as sodium, calcium, magnesium, chloride, nitrate, bicarbonate, and silica. These salts consist of negatively charged ions (anion) and positively charged ions (cation). More than 99% of ions can be connectedAnd is treated by Reverse Osmosis (RO) properly. The urban water source also contains trace metals, dissolved gases (such as CO)2) And other weakly ionized compounds that must be removed during industrial use (e.g., boron and silicon).
The conductivity of the RO permeate water (EDI feed water) is typically between 2 and 50. mu.s/cm. While the resistivity of ultrapure water or deionized water generally varies between 2 and 16M Ω cm depending on the field of application.
The EDI device 34 operates to remove unwanted ions by exchanging hydroxyl or hydroxide ions and then delivering these ions to the wastewater stream.
Further, the pretreatment unit 10 comprises a raw water tank 11, a raw water pump 12, a multi-media filter 13 and an activated carbon filter 14 which are connected in sequence, and the activated carbon filter 14 is connected with the cartridge filter 21.
The raw water tank 11 plays a role in buffering and regulating water quantity, and the purpose of the raw water tank is to prevent the fluctuation of the water inlet pressure from influencing the operation of the system and ensure the safe and stable operation of the raw water pump 12.
The raw water pump 12 provides the necessary power for the subsequent devices, and the whole operation state is automatically controlled by P L C.
The multi-medium filter 13 selects refined quartz sand and anthracite as filter materials, the lighter anthracite is placed on the upper part of the filter layer, and the small-particle multistage quartz sand is arranged on the lower part of the filter layer, so that the efficiency of the whole filter layer can be fully exerted, and the pollutant interception capability is improved. The multi-media filter 13 is mainly used for removing particles, colloid, suspended matters, turbidity and the like in water, so that the turbidity of the effluent is less than 1 NTU.
Activated carbon filter 14 is capable of forming a layer of equilibrium surface concentration on the surface of the activated carbon particles, and then adsorbing organic impurities into the activated carbon particles. The oxygen-containing functional group of the porous part of the active carbon and hypochlorite with oxidability in water are subjected to rapid oxidation and reduction reaction to remove the hypochlorite with oxidability.
Further, the polishing mixed bed unit 40 includes a polishing mixed bed 41 and a second precision filter 42 connected in sequence, and the polishing mixed bed 41 is connected to the TOC remover 37.
The polishing mixed bed 41 is also called a disposable mixed bed and is generally used at the end of the process to further improve the quality of the produced water.
TOC is total organic carbon, which is the total amount of dissolved and suspended organic carbon in water and is generally used to measure the degree of organic pollution to water. A TOC remover 37 is used to reduce the TOC content of the water.
Further, the ultrapure water preparation system further comprises a cleaning unit 50, wherein the cleaning unit 50 comprises a cleaning water tank 51, a cleaning pump 52 and a cleaning filter 53 which are connected in sequence, and the cleaning filter 53 is connected with the reverse osmosis unit 20 and the EDI unit 30. Specifically, the cleaning unit 50 is connected to the primary reverse osmosis unit 23, the secondary reverse osmosis unit 26, and the EDI unit 34. The cleaning unit 50 is used to clean the primary reverse osmosis unit 23, the secondary reverse osmosis unit 26, and the EDI unit 34.
Further, the ultrapure water preparation system also comprises a backwashing unit 60, wherein the backwashing unit 60 comprises a backwashing pump 61 and a backwashing filter 62 which are connected in sequence, and the backwashing pump 61 is connected with the reverse osmosis unit 20. Specifically, the backwash unit 60 is in communication with the primary reverse osmosis device 23 and the secondary reverse osmosis device 26. The backwash unit 60 is used to clean the primary reverse osmosis device 23 and the secondary reverse osmosis device 26.
Further, the backwashing filter 62 is a multimedia filter or an activated carbon filter.
Further, a reducing agent adding device 70 is arranged between the pretreatment unit 10 and the reverse osmosis unit 20. The reducing agent adding device 70 is used to add a reducing agent to the water to be treated.
Further, a scale inhibitor adding device 80 is arranged between the pretreatment unit 10 and the reverse osmosis unit 20. The scale inhibitor adding device 80 is used for adding a scale inhibitor to water to be treated.
Further, the ultrapure water preparation system further comprises a P L C controller (not shown), the pretreatment unit 10, the reverse osmosis unit 20, the EDI unit 30, the polishing mixed bed unit 40, the cleaning unit 50 and the backwashing unit 60 are all connected with and controlled by the P L C controller, and specifically, a reducing agent adding device 70, a scale inhibitor adding device 80, the raw water tank 11, the raw water pump 12, the multimedia filter 13, the activated carbon filter 14, the cartridge filter 21, the primary high pressure pump 22, the primary reverse osmosis device 23, the primary RO water tank 24, the secondary high pressure pump 25, the secondary reverse osmosis device 26, the secondary RO water tank 27, the EDI water supply pump 31, the ultraviolet sterilizer 32, the first precision filter 33, the EDI device 34, the brine removal tank 35, the cleaning pump 36, the TOC remover 37, the polishing mixed bed 41, the second precision filter 42, the cleaning water tank 51, the cleaning pump 52, the cleaning filter 53, the backwashing pump 61 and the backwashing filter 62 are all connected with the P L C controller, and the P L is controlled by the P L C controller, so that the labor intensity of the automatic backwashing equipment can be reduced, and the working cost can be reduced.
The embodiment of the utility model provides an ultrapure water preparation system, ultrapure water preparation system includes pretreatment unit, reverse osmosis unit, EDI unit and polishing mixed bed unit; the reverse osmosis unit comprises a security filter, a first-stage high-pressure pump, a first-stage reverse osmosis device, a first-stage RO water tank, a second-stage high-pressure pump, a second-stage reverse osmosis device and a second-stage RO water tank which are connected in sequence; the EDI unit comprises an EDI water supply pump, an ultraviolet sterilizer, a first precision filter, an EDI device, a desalting water tank, a pure water pump and a TOC remover which are connected in sequence; second grade RO water tank with the EDI working shaft is connected to can purify the running water into ultrapure water, promote the quality of resident's water, improve resident's water and experience.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, while the invention has been described with respect to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
The above description is for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. An ultrapure water preparation system is characterized by comprising a pretreatment unit, a reverse osmosis unit, an EDI unit and a polishing mixed bed unit which are connected in sequence; the reverse osmosis unit comprises a security filter, a first-stage high-pressure pump, a first-stage reverse osmosis device, a first-stage RO water tank, a second-stage high-pressure pump, a second-stage reverse osmosis device and a second-stage RO water tank which are connected in sequence; the EDI unit comprises an EDI water supply pump, an ultraviolet sterilizer, a first precision filter, an EDI device, a desalting water tank, a pure water pump and a TOC remover which are connected in sequence; the second-level RO water tank is connected with the EDI water supply pump.
2. The system for preparing ultrapure water according to claim 1, wherein the pretreatment unit comprises a raw water tank, a raw water pump, a multi-media filter and an activated carbon filter which are connected in sequence, wherein the activated carbon filter is connected with the cartridge filter.
3. The system for preparing ultrapure water according to claim 2, wherein the polishing mixed bed unit comprises a polishing mixed bed and a second precision filter connected in series, the polishing mixed bed being connected to the TOC remover.
4. The ultrapure water preparation system of claim 3, further comprising a cleaning unit comprising a cleaning water tank, a cleaning pump and a cleaning filter connected in series, the cleaning filter being connected to the reverse osmosis unit and the EDI unit.
5. The ultrapure water preparation system of claim 4 further comprising a backwash unit, wherein the backwash unit comprises a backwash pump and a backwash filter connected in series, and the backwash pump is connected to the reverse osmosis unit.
6. The ultrapure water production system of claim 5 wherein the backflush filter is a multimedia filter or an activated carbon filter.
7. The system for preparing ultrapure water according to claim 6, wherein a reducing agent addition device is provided between the pretreatment unit and the reverse osmosis unit.
8. The ultrapure water production system of claim 7 wherein a scale inhibitor addition device is provided between the pretreatment unit and the reverse osmosis unit.
9. The ultrapure water preparation system of claim 8, further comprising a P L C controller, wherein the pretreatment unit, the reverse osmosis unit, the EDI unit, the mixed bed polishing unit, the cleaning unit and the backwash unit are connected to the P L C controller and controlled by the P L C controller.
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| CN201921880126.7U CN211004930U (en) | 2019-10-31 | 2019-10-31 | Ultrapure water preparation system |
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| CN201921880126.7U CN211004930U (en) | 2019-10-31 | 2019-10-31 | Ultrapure water preparation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110642441A (en) * | 2019-10-31 | 2020-01-03 | 深圳恒通源环保科技有限公司 | Ultrapure water preparation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110642441A (en) * | 2019-10-31 | 2020-01-03 | 深圳恒通源环保科技有限公司 | Ultrapure water preparation system |
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Address after: Building 101, No. 30-1 Changjiang Pu Road, He'ao Community, Yuanshan Street, Longgang District, Shenzhen City, Guangdong Province, 518000 Patentee after: Shenzhen Hengtongyuan Environmental Protection and Energy Conservation Technology Co.,Ltd. Address before: 518000 building a, No. 30-1, Changjiang Pu Road, Henggang street, Longgang District, Shenzhen, Guangdong Province Patentee before: SHENZHEN HEADWATER ENVIRONMENTAL TECHNOLOGIES Co.,Ltd. |
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