A multi-stage membrane concentration and separation device for ultrapure water treatment

Abstract

This utility model relates to the field of water treatment technology and discloses a multi-stage membrane concentration and separation device for ultrapure water treatment, including a primary filtration component, and further including: a first-stage filtration component disposed on one side of the primary filtration component, a second-stage filtration component disposed on one side of the first-stage filtration component, and a pure water tank disposed on one side of the second-stage filtration component; this utility model delivers water to the primary filtration component for initial filtration via a constant pressure pump, then performs precise filtration through the first and second-stage filtration components, followed by desalination and impurity removal by a single-stage reverse osmosis membrane (suitable for medium water quality or as a multi-stage front end); then, two reverse osmosis membranes are connected in series to further remove dissolved salts, organic matter, heavy metals, etc., improving water purity; subsequently, an evaporation component heats the water to evaporate, leaving salts and other impurities in the residual liquid for separation; finally, impurities are efficiently separated through evaporation and condensation phase change, and the pure water is delivered to a disinfection tank for disinfection.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to a multi-stage membrane concentration and separation device for ultrapure water treatment. Background Technology

[0002] Ultrapure water is water with a resistivity of 18 MΩ·cm (at 25°C). Ultrapure water contains very few impurities such as conductive media, colloidal substances, gases, particles, and organic matter. It is a commonly used raw material in the fields of semiconductor materials, nano-fine ceramic materials, and other ultrapure materials. Ultrapure water is frequently used in the production and preparation processes of the electronics and pharmaceutical industries, and it is also frequently used in laboratory experiments. Therefore, it is necessary to prepare ultrapure water for future use.

[0003] Traditional ultrapure water treatment processes rely on mixed-bed ion exchange systems, which require periodic chemical regeneration (acid and alkali treatment). This not only interrupts water production but also generates waste acid and alkali solutions, polluting the environment. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage membrane concentration and separation device for ultrapure water treatment, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage membrane concentration and separation device for ultrapure water treatment, comprising a primary filtration assembly, and further comprising:

[0006] A primary filtration component is disposed on one side of the primary filtration component, a secondary filtration component is disposed on one side of the primary filtration component, and a pure water tank is disposed on one side of the secondary filtration component.

[0007] An evaporation assembly is located on one side of the pure water tank. A high-pressure, high-temperature pump is installed on one side of the evaporation assembly. A treatment assembly is located on one side of the high-pressure, high-temperature pump. A second water pump is located on one side of the treatment assembly. A disinfection tank is located on one side of the second water pump.

[0008] Preferably, the primary filtration assembly includes three parallel tanks, tank 1, tank 2, and tank 3, which are interconnected. A constant pressure pump is installed on one side of tank 1.

[0009] Preferably, the primary filtration assembly includes a 5U filter canister connected to the tank body, a primary high-pressure pump is provided on one side of the 5U filter canister, and a primary membrane system is installed on one side of the primary high-pressure pump.

[0010] Preferably, the secondary filtration assembly includes a 1U filter canister disposed outside the primary membrane system, a secondary high-pressure pump installed on one side of the 1U filter canister, a secondary membrane system installed on one side of the secondary high-pressure pump, and a pH adjustment tank disposed between the 1U filter canister and the secondary high-pressure pump.

[0011] Preferably, the evaporation assembly includes a first water pump disposed on one side of the pure water tank, an evaporation tower installed on one side of the first water pump, a distillation tank installed on one side of the evaporation tower, one side of the pure water tank being connected to a secondary membrane system, and a high-pressure high-temperature pump installed on one side of the evaporation tower.

[0012] Preferably, the processing component includes a water molecule system disposed on one side of the high-pressure high-temperature pump, an oxygen pump disposed on one side of the water molecule system, and an oxygen replenishment tank disposed on one side of the oxygen pump.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention uses a constant pressure pump to deliver water to a primary filtration unit for initial filtration, followed by precise filtration through first and second stage filtration units. Then, a single-stage reverse osmosis membrane removes salt and impurities (suitable for medium water quality or as a pre-treatment stage in multi-stage systems). Next, two reverse osmosis membranes are connected in series to further remove dissolved salts, organic matter, heavy metals, etc., improving water purity. Subsequently, an evaporation unit heats the water to evaporate it, leaving salts and other impurities in the residual liquid for separation. Finally, through evaporation and condensation phase change, impurities are efficiently separated, and the pure water is delivered to a disinfection tank for disinfection. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the multi-stage membrane concentration and separation device for ultrapure water treatment provided by this utility model;

[0016] Figure 2 A schematic diagram of the primary filter assembly provided by this utility model;

[0017] Figure 3 Schematic diagrams of the primary and secondary filter components provided by this utility model;

[0018] Figure 4 A schematic diagram of the evaporation component structure provided by this utility model;

[0019] Figure 5 A schematic diagram of the processing component structure provided by this utility model.

[0020] In the diagram: 1. Primary filtration assembly; 101. Tank 1; 102. Tank 2; 103. Tank 3; 2. First-stage filtration assembly; 201. 5U filter tank; 202. First-stage high-pressure pump; 203. First-stage membrane system; 3. Second-stage filtration assembly; 301. 1U filter tank; 302. Second-stage high-pressure pump; 303. Second-stage membrane system; 4. Pure water tank; 5. Evaporation assembly; 501. First water delivery pump; 502. Evaporation tower; 503. Distillation tank; 6. High-pressure high-temperature pump; 7. Treatment assembly; 701. Water molecule system; 702. Oxygen pump; 703. Oxygen supplement tank; 8. Second water delivery pump; 9. Disinfection tank; 10. pH adjustment tank; 11. Constant pressure pump. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 As shown, an ultrapure water treatment multi-stage membrane concentration and separation device includes a primary filtration component 1, and further includes: a first-stage filtration component 2 disposed on one side of the primary filtration component 1, a second-stage filtration component 3 disposed on one side of the first-stage filtration component 2, a pure water tank 4 disposed on one side of the second-stage filtration component 3; an evaporation component 5 disposed on one side of the pure water tank 4, a high-pressure high-temperature pump 6 installed on one side of the evaporation component 5, a treatment component 7 disposed on one side of the high-pressure high-temperature pump 6, a second water pump 8 disposed on one side of the treatment component 7, and a disinfection tank 9 disposed on one side of the second water pump 8.

[0023] It should be noted that: water is transported to the primary filter component 1 for primary filtration via constant pressure pump 11, and then further filtered through the first-stage filter component 2 and the second-stage filter component 3 for precise filtration. The single-stage reverse osmosis membrane achieves efficient desalination and impurity separation, which is suitable for scenarios with moderate water quality requirements or as the front end of a multi-stage system. Then, through the series operation of the two-stage reverse osmosis membrane, dissolved salts, organic matter, heavy metal ions and other impurities in the water are further removed, significantly improving the water purity. Next, the water is heated by the evaporation component 5 to evaporate into water vapor, while dissolved salts, heavy metal ions and other impurities remain in the residual liquid because their boiling points are much higher than water, thus achieving the separation of water and salt. Then, through the physical phase change process of heating, evaporation and condensation, the water and impurities are efficiently separated. The treated pure water is then transported to the disinfection tank 9 for disinfection.

[0024] The primary filtration assembly 1 includes three parallel tanks: tank 101, tank 2, and tank 3, which are interconnected. A constant pressure pump 11 is installed on one side of tank 101, which introduces water into tank 101. The three tanks are filled with filter materials such as fruit carbon and magnesium carbon for primary filtration.

[0025] The primary filtration assembly 2 includes a 5U filter tank 201 connected to the tank body 103. A primary high-pressure pump 202 is installed on one side of the 5U filter tank 201, and a primary membrane system 203 is installed on one side of the primary high-pressure pump 202. The secondary filtration assembly 3 includes a 1U filter tank 301 located outside the primary membrane system 203. A secondary high-pressure pump 302 is installed on one side of the 1U filter tank 301, and a secondary membrane system 303 is installed on one side of the secondary high-pressure pump 302. A pH adjustment tank 10 is installed between the 1U filter tank 301 and the secondary high-pressure pump 302. The water after primary filtration is sent to the 5U filter tank 201 for treatment. The treated water is then sent to the primary membrane system 203 for further treatment via the primary high-pressure pump 202, and then sequentially passes through the 1U filter tank 301. The water treatment system 01 and secondary membrane system 303 are used for treatment. Among them, 5U filtration usually refers to a filtration system with a filtration accuracy of 5 micrometers (μm). Its core function is to intercept particulate matter with a diameter greater than 5 micrometers in the water, such as silt, rust, and suspended solids. 1U filtration refers to a filtration system with a filtration accuracy of 5 micrometers (μm). The water treatment primary membrane system 203 is a water treatment system with primary reverse osmosis as its core. It achieves efficient desalination and impurity separation through a single-stage reverse osmosis membrane and is suitable for scenarios with medium water quality requirements or as the front end of a multi-stage system. The water treatment secondary membrane system 303 usually refers to a water treatment system that uses dual-stage reverse osmosis technology. Through the series operation of two stages of reverse osmosis membranes, it further removes dissolved salts, organic matter, heavy metal ions and other impurities from the water, significantly improving water purity.

[0026] Evaporation assembly 5 includes a first water pump 501 located on one side of the pure water tank 4, an evaporation tower 502 installed on one side of the first water pump 501, a distillation tank 503 installed on one side of the evaporation tower 502, a secondary membrane system 303 connected to one side of the pure water tank 4, and a high-pressure high-temperature pump 6 installed on one side of the evaporation tower 502; treatment assembly 7 includes a water molecule system 701 located on one side of the high-pressure high-temperature pump 6, an oxygen pump 702 located on one side of the water molecule system 701, and an oxygen replenishment tank 703 located on one side of the oxygen pump 702; after pure water enters the pure water tank 4, it is pumped by the first water pump... The water is transported to the evaporation tower 502 for evaporation treatment. The water is heated and evaporated into water vapor, while dissolved salts, heavy metal ions and other impurities remain in the residual liquid because their boiling points are much higher than water, thus achieving the separation of water and salt. The distillation tank 503 achieves efficient separation of water and impurities through the physical phase change process of heating, evaporation and condensation. It is one of the core devices for preparing high-purity water. The water molecule system 701 in pure water treatment essentially removes impurities from the water through physical and chemical means, making water molecules the main component. At the same time, it combines reverse osmosis, ion exchange and other technologies to achieve high-purity separation.

[0027] Working principle: Water is pumped to the primary filter element 1 by the constant pressure pump 11 for primary filtration, and then further filtered by the first-stage filter element 2 and the second-stage filter element 3. The single-stage reverse osmosis membrane achieves efficient desalination and impurity separation, which is suitable for scenarios with moderate water quality requirements or as the front end of a multi-stage system. Then, the two-stage reverse osmosis membranes are connected in series to further remove dissolved salts, organic matter, heavy metal ions and other impurities from the water, significantly improving water purity. Next, the evaporation element 5 heats the water to evaporate it into water vapor, while dissolved salts, heavy metal ions and other impurities remain in the residual liquid because their boiling points are much higher than water, thus achieving separation of water and salt. Then, through the physical phase change process of heating, evaporation and condensation, the water and impurities are separated efficiently. The treated pure water is then transported to the disinfection tank 9 for disinfection.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage membrane concentration and separation device for ultrapure water treatment, comprising a primary filtration assembly (1), characterized in that, Also includes: A primary filter assembly (2) is disposed on one side of the primary filter assembly (1), a secondary filter assembly (3) is disposed on one side of the primary filter assembly (2), and a pure water tank (4) is disposed on one side of the secondary filter assembly (3). An evaporation component (5) is disposed on one side of the pure water tank (4). A high-pressure high-temperature pump (6) is installed on one side of the evaporation component (5). A treatment component (7) is disposed on one side of the high-pressure high-temperature pump (6). A second water pump (8) is disposed on one side of the treatment component (7). A disinfection tank (9) is disposed on one side of the second water pump (8).

2. The ultrapure water treatment multi-stage membrane concentration and separation device according to claim 1, characterized in that: The primary filtration assembly (1) includes three parallel tanks: tank one (101), tank two (102), and tank three (103), which are interconnected. A constant pressure pump (11) is installed on one side of tank one (101).

3. The multi-stage membrane concentration and separation device for ultrapure water treatment according to claim 2, characterized in that: The primary filtration assembly (2) includes a 5U filter tank (201) connected to the tank body (103), a primary high-pressure pump (202) is provided on one side of the 5U filter tank (201), and a primary membrane system (203) is installed on one side of the primary high-pressure pump (202).

4. The multi-stage membrane concentration and separation device for ultrapure water treatment according to claim 3, characterized in that: The secondary filtration assembly (3) includes a 1U filter canister (301) disposed outside the primary membrane system (203). A secondary high-pressure pump (302) is installed on one side of the 1U filter canister (301), and a secondary membrane system (303) is installed on one side of the secondary high-pressure pump (302). A pH adjustment tank (10) is disposed between the 1U filter canister (301) and the secondary high-pressure pump (302).

5. The multi-stage membrane concentration and separation device for ultrapure water treatment according to claim 4, characterized in that: The evaporation assembly (5) includes a first water pump (501) disposed on one side of the pure water tank (4), an evaporation tower (502) installed on one side of the first water pump (501), a distillation tank (503) installed on one side of the evaporation tower (502), one side of the pure water tank (4) being connected to a secondary membrane system (303), and a high-pressure high-temperature pump (6) installed on one side of the evaporation tower (502).

6. The multi-stage membrane concentration and separation device for ultrapure water treatment according to claim 1, characterized in that: The processing component (7) includes a water molecule system (701) disposed on one side of the high-pressure high-temperature pump (6), an oxygen pump (702) disposed on one side of the water molecule system (701), and an oxygen replenishment tank (703) disposed on one side of the oxygen pump (702).

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