Laboratory ultrapure water generator

Abstract

The utility model discloses a laboratory is with ultrapure water device, include: primary reverse osmosis device, high pressure pump, secondary reverse osmosis device, ultrapure water tank, delivery pump, ultraviolet sterilizer, the utility model has the following beneficial effect: through primary reverse osmosis device and polishing mixed bed on main pipeline, realize integrated primary reverse osmosis device, polishing mixed bed etc., compact and reasonable in structure, avoid excessive complex equipment integration, effectively reduced equipment purchase cost, simultaneously, each processing unit is orderly connected through main pipeline, and water flow path is clear, reduced the waiting and transition time in processing process, greatly shortened production cycle, moreover, polishing mixed bed is located at the water outlet, can further promote the water quality of ultrapure water, namely, primary reverse osmosis device and secondary reverse osmosis device produce pure water and store to water tank, then through delivery pump pressurized pure water and reach the water quality of ultrapure water through polishing mixed bed, realize the effect of reducing cost and shortening production cycle.

Description

Technical Field

[0001] This utility model relates to the field of ultrapure water devices, and more particularly to an ultrapure water device for laboratory use. Background Technology

[0002] Ultrapure water plays an irreplaceable role in many high-end fields such as semiconductor manufacturing, biomedicine, precision electronics, and laboratory research. Its water quality requirements are extremely stringent. Current equipment suffers from high equipment purchase costs and long production cycles. For example, to meet the preparation standards of ultrapure water, multiple complex processing units and precision control equipment are often integrated, and multiple devices lead to a long production cycle. Therefore, a laboratory ultrapure water system is needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a laboratory ultrapure water system that solves the problems of excessively long production cycles and high costs associated with current ultrapure water systems.

[0004] To achieve this objective, the present invention adopts the following technical solution: A laboratory ultrapure water system includes: a primary reverse osmosis unit, a high-pressure pump, a secondary reverse osmosis unit, an ultrapure water tank, a transfer pump, an ultraviolet sterilizer, and a polishing mixed bed configured as the ultrapure water system body, wherein: A main pipe is provided between the bodies of the ultrapure water purifier and the main pipe. The two ends of the main pipe are respectively set as water inlet and water outlet. The first-stage reverse osmosis device is located at the water inlet of the main pipe, and the polishing mixed bed is located at the water outlet of the main pipe, which is used to improve the water quality of the ultrapure water.

[0005] Furthermore, the primary reverse osmosis unit, the high-pressure pump, the secondary reverse osmosis unit, the ultrapure water tank, the transfer pump, the ultraviolet sterilizer, and the polishing mixed bed are connected in series on the main pipeline.

[0006] Furthermore, the primary reverse osmosis unit and the secondary reverse osmosis unit are arranged close to each other, and the primary reverse osmosis unit is directly connected to the secondary reverse osmosis unit through the main pipeline.

[0007] Furthermore, the high-pressure pump is connected in series between the first-stage reverse osmosis unit and the second-stage reverse osmosis unit, and is installed and connected to the main pipeline, for pressurizing the ultrapure water from the first-stage reverse osmosis unit to enter the second-stage reverse osmosis unit.

[0008] Furthermore, the primary reverse osmosis device includes four reverse osmosis tubes connected in series, with the inlet of one reverse osmosis tube connected to the inlet of the main pipeline, and the outlet of one reverse osmosis tube connected to the main pipeline to form a circulation structure.

[0009] Furthermore, one of the reverse osmosis pipes of the first-stage reverse osmosis unit is connected to a drain outlet.

[0010] Furthermore, the secondary reverse osmosis device includes three reverse osmosis tubes, which are connected in series, with two of the reverse osmosis tubes respectively connected to the inlet and outlet interfaces of the main pipeline.

[0011] Furthermore, the inlet and outlet of one of the reverse osmosis tubes in the secondary reverse osmosis unit are respectively connected to a cleaning inlet and a cleaning outlet, and a cleaning tank is connected between the cleaning inlet and the cleaning outlet.

[0012] Furthermore, the ultrapure water tank is located on one side of the secondary reverse osmosis device, and the interface of the ultrapure water tank is connected to the secondary reverse osmosis device. The outlet of the ultrapure water tank is connected to the main pipeline, and a drain outlet is also connected to the ultrapure water tank.

[0013] Furthermore, the delivery pump and the ultraviolet sterilizer are installed on the main pipeline between the polishing mixed bed and the ultrapure water tank.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The system integrates a primary reverse osmosis unit and a polishing mixed bed on the main pipeline, resulting in a compact and rational structure that avoids the integration of too many complex devices, effectively reducing equipment purchase costs. Simultaneously, the orderly connection of each treatment unit via the main pipeline ensures a clear water flow path, reducing waiting and transition times during treatment and significantly shortening the production cycle. Furthermore, the polishing mixed bed, located at the water inlet, further enhances the quality of the ultrapure water output. Specifically, after the primary and secondary reverse osmosis units produce pure water, which is stored in a tank, it is then pressurized by a transfer pump and further processed through the polishing mixed bed to achieve ultrapure water quality, thus reducing costs and shortening the production cycle. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 This is a schematic diagram of the overall pipeline design.

[0018] Diagram description: 1. First-stage reverse osmosis unit; 101. Inlet; 102. Outlet; 2. High-pressure pump; 301. Cleaning inlet; 302. Cleaning outlet; 3. Second-stage reverse osmosis unit; 4. Ultrapure water tank; 401. Sewage outlet; 5. Transfer pump; 6. Ultraviolet sterilizer; 7. Polishing mixed bed. Detailed Implementation

[0019] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] This utility model embodiment provides a laboratory ultrapure water system; please refer to [link / reference]. Figure 1The system includes: a primary reverse osmosis unit 1, a high-pressure pump 2, a secondary reverse osmosis unit 3, an ultrapure water tank 4, a transfer pump 5, an ultraviolet sterilizer 6, and a polishing mixed bed 7, which together form the ultrapure water purifier body. A main pipeline is provided between the ultrapure water purifier bodies, with an inlet 101 and a outlet at each end of the main pipeline. The primary reverse osmosis unit 1 is located at the inlet 101 of the main pipeline, and the polishing mixed bed 7 is located at the outlet of the main pipeline, which is used to improve the water quality of the ultrapure water.

[0023] like Figure 1 As shown, the first-stage reverse osmosis unit 1 serves as the preliminary treatment unit for ultrapure water preparation. It removes most of the impurities, ions, microorganisms, etc. in the water through the principle of reverse osmosis, thus performing preliminary purification of the influent and providing a relatively pure water source for subsequent treatment.

[0024] High-pressure pump 2 is connected in series between the first-stage reverse osmosis unit 1 and the second-stage reverse osmosis unit 3 to provide sufficient pressure for the water, so that the water treated by the first-stage reverse osmosis unit 1 can smoothly enter the second-stage reverse osmosis unit 3 for further purification.

[0025] The secondary reverse osmosis unit 3 further purifies the water treated by the primary reverse osmosis unit 1, removing residual impurities and ions to achieve higher water purity.

[0026] The ultrapure water tank 4 stores the pure water treated by the secondary reverse osmosis unit 3, playing a role in buffering and stabilizing the water supply, ensuring a continuous and stable supply of pure water when water demand changes.

[0027] The transfer pump 5 is installed on the main pipeline between the polishing mixed bed 7 and the ultrapure water tank 4, providing power for the ultrapure water to flow from the ultrapure water tank 4 to the polishing mixed bed 7, ensuring that the water can pass smoothly through the polishing mixed bed 7 for final purification.

[0028] The ultraviolet sterilizer 6 uses the sterilizing effect of ultraviolet light to sterilize and disinfect water that has been treated by the secondary reverse osmosis device 3, killing bacteria, viruses and other microorganisms that may be present in the water.

[0029] The polishing mixed bed 7 is located at the water inlet of the main pipeline. It performs a final deep purification on the water that has passed through the previous treatment unit, further improving the quality of the ultrapure water and removing trace ions and impurities from the water. The core of the polishing mixed bed 7 lies in its internal polishing resin. These cation and anion exchange polishing resins are pre-mixed in a very close ratio to form an extremely precise "filter". When water flows through, the polishing resin undergoes an ion exchange reaction, almost completely removing the residual trace cations and anions in the water, thereby producing ultrapure water with a purity close to the theoretical value.

[0030] The main pipeline serves as the connecting channel between the various treatment units of the ultrapure water system. It connects the inlet 101, the first-stage reverse osmosis unit 1, the high-pressure pump 2, the second-stage reverse osmosis unit 3, the ultrapure water tank 4, the transfer pump 5, the ultraviolet sterilizer 6, the polishing mixed bed 7, and the water inlet in an orderly manner, forming a complete water flow path. This allows each treatment unit to work collaboratively, with a clear water flow path, reducing waiting and transition times during the treatment process, improving the overall system efficiency, and facilitating system installation, maintenance, and management.

[0031] Specifically, after the primary reverse osmosis unit 1 and the secondary reverse osmosis unit 3 produce pure water, it is stored in a water tank. When needed, the pure water is pressurized by the transfer pump 5 and further passed through the polishing mixed bed 7 to achieve the water quality of ultrapure water, thereby reducing costs and shortening the production cycle.

[0032] Specific process: Water enters from the inlet 101 of the main pipeline and first reaches the first-stage reverse osmosis unit 1. In the first-stage reverse osmosis unit 1, the water passes through the reverse osmosis membrane under pressure, and most impurities, ions, and microorganisms are retained. The preliminarily purified water flows out of the first-stage reverse osmosis unit 1 and enters the high-pressure pump 2 through the main pipeline. The high-pressure pump 2 pressurizes the water so that it can smoothly enter the second-stage reverse osmosis unit 3. In the second-stage reverse osmosis unit 3, the water passes through the reverse osmosis membrane again for deep purification, further removing residual impurities and ions. The treated pure water flows into the ultrapure water tank 4 for storage. When ultrapure water is needed, the pure water in the ultrapure water tank 4 is pressurized by the transfer pump 5 and flows through the main pipeline sequentially through the ultraviolet sterilizer 6 and the polishing mixed bed 7. In the ultraviolet sterilizer 6, microorganisms in the water are killed. In the polishing mixed bed 7, trace amounts of ions and impurities in the water are further removed. Finally, it flows out from the water outlet of the main pipeline, obtaining ultrapure water that meets the laboratory requirements.

[0033] Please continue reading. Figure 1 The primary reverse osmosis unit 1, high-pressure pump 2, secondary reverse osmosis unit 3, ultrapure water tank 4, transfer pump 5, ultraviolet sterilizer 6, and polishing mixed bed 7 are connected in series on the main pipeline. The primary reverse osmosis unit 1 and the secondary reverse osmosis unit 3 are set close to each other. The primary reverse osmosis unit 1 is directly connected to the secondary reverse osmosis unit 3 through the main pipeline. The high-pressure pump 2 is connected in series between the primary reverse osmosis unit 1 and the secondary reverse osmosis unit 3, and is installed and connected to the main pipeline to pressurize the ultrapure water of the primary reverse osmosis unit 1 into the secondary reverse osmosis unit 3.

[0034] like Figure 1As shown, a complete and orderly water treatment process is constructed in series. The first-stage reverse osmosis unit 1 serves as the initial treatment unit, which performs preliminary purification of the incoming water, removing most impurities and ions. The high-pressure pump 2 provides power for the subsequent water flow, ensuring that the water can smoothly enter the second-stage reverse osmosis unit 3. The second-stage reverse osmosis unit 3 further purifies the water and improves the water purity. The ultrapure water tank 4 is used to store the treated pure water, playing a role in buffering and stabilizing the water supply. The transfer pump 5 transports the pure water from the tank to the subsequent treatment units. The ultraviolet sterilizer 6 kills microorganisms in the water to ensure the sterility of the water. The polishing mixed bed 7 performs the final fine treatment of the water, improving the quality of the effluent to the ultrapure water standard.

[0035] By placing the primary and secondary reverse osmosis units 3 close together and directly connecting them, the distance and resistance of water flow between the two are reduced. Water treated by the primary reverse osmosis unit 1 can quickly and smoothly enter the secondary reverse osmosis unit 3 without going through complex pipe turns and long-distance transportation.

[0036] High-pressure pump 2 plays a crucial role in boosting power in the system. Although some impurities have been removed from the water treated by the first-stage reverse osmosis unit 1, the pressure may not be sufficient to smoothly enter the second-stage reverse osmosis unit 3 for further treatment. High-pressure pump 2 can provide sufficient pressure to overcome the inlet resistance of the second-stage reverse osmosis unit 3, ensuring that the water can flow into the second-stage reverse osmosis unit 3 stably and continuously.

[0037] Please continue reading. Figure 1 The first-stage reverse osmosis unit 1 includes four reverse osmosis tubes connected in series. The inlet of one reverse osmosis tube is connected to the inlet 101 of the main pipeline, and the outlet of one reverse osmosis tube is connected to the main pipeline to form a circulation structure. One of the reverse osmosis tubes of the first-stage reverse osmosis unit 1 is connected to the drain outlet 102. The second-stage reverse osmosis unit 3 includes three reverse osmosis tubes connected in series. Two of the reverse osmosis tubes are connected to the inlet and outlet interfaces of the main pipeline, respectively. The inlet and outlet of one of the reverse osmosis tubes of the second-stage reverse osmosis unit 3 are connected to the cleaning inlet 301 and the cleaning outlet 302, respectively. A cleaning tank is connected between the cleaning inlet 301 and the cleaning outlet 302.

[0038] like Figure 1 As shown, four reverse osmosis tubes are connected in series, allowing water to pass through each tube sequentially. As water passes through each tube, impurities and ions are further trapped and removed, achieving multi-stage reverse osmosis treatment and improving the degree of water purification. The circulating structure allows some water to pass through the reverse osmosis tubes again for purification, enhancing the purification effect and ensuring that the water entering the subsequent treatment units has higher purity.

[0039] Drain 102 is used to discharge the concentrate produced during the first-stage reverse osmosis treatment. The concentrate contains a large amount of impurities and salts that are trapped by the reverse osmosis membrane. If it is not discharged in time, it will affect the purification effect of the subsequent reverse osmosis tubes and may even cause the reverse osmosis membrane to become clogged, reducing the service life of the equipment.

[0040] Three reverse osmosis tubes are connected in series to further purify the water after it has been treated by the first-stage reverse osmosis unit 1, thereby further improving the water's purity. Two reverse osmosis tubes are connected to the inlet and outlet interfaces of the main pipeline, enabling smooth water flow between the second-stage reverse osmosis unit 3 and the main pipeline, ensuring the continuity of the water treatment process.

[0041] The cleaning inlet 301 is used to introduce cleaning solution, the cleaning outlet 302 is used to discharge the cleaning solution after use, and the cleaning tank stores the cleaning solution. After the secondary reverse osmosis unit 3 has been running for a period of time, impurities and dirt may accumulate on the surface of the reverse osmosis membrane, affecting its purification effect. Through the cleaning system, cleaning solution can be introduced into the reverse osmosis tube to clean the reverse osmosis membrane, remove the dirt on the surface, and restore the performance of the reverse osmosis membrane.

[0042] Please continue reading. Figure 1 The ultrapure water tank 4 is located on one side of the secondary reverse osmosis unit 3, and the interface of the ultrapure water tank 4 is connected to the secondary reverse osmosis unit 3. The outlet of the ultrapure water tank 4 is connected to the main pipeline. The ultrapure water tank 4 is also connected to the drain outlet 401. The transfer pump 5 and the ultraviolet sterilizer 6 are installed on the main pipeline between the polishing mixed bed 7 and the ultrapure water tank 4.

[0043] like Figure 1 As shown, the pure water treated by the secondary reverse osmosis unit 3 can flow directly and smoothly into the ultrapure water tank 4 for storage. The water treated by the secondary reverse osmosis unit 3 has reached a high purity. Storing it in time can avoid secondary pollution during subsequent transmission and ensure the stability of water quality.

[0044] The drain outlet 401 is used to periodically discharge impurities, sediments, and microorganisms that may grow in the ultrapure water tank 4. During storage, even if the water quality is good, it may be affected by the sedimentation of some minor impurities or the reproduction of microorganisms. The drain outlet 401 can discharge these harmful substances in a timely manner.

[0045] The delivery pump 5 provides power to the water in the ultrapure water tank 4, enabling it to overcome the resistance of the main pipeline and flow smoothly to the polishing mixed bed 7 for further treatment. Without the delivery pump 5, the water may not be able to reach the polishing mixed bed 7 through the main pipeline with sufficient pressure and flow, affecting the subsequent treatment effect.

[0046] During the process of ultrapure water flowing from ultrapure water tank 4 to polishing mixed bed 7, ultraviolet sterilizer 6 uses the sterilization effect of ultraviolet light to kill microorganisms in the water. Although the previous treatment steps have removed most of the impurities and microorganisms, there may still be a small amount of microorganisms remaining. Ultraviolet sterilizer 6 can further reduce the microbial content.

[0047] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A laboratory ultrapure water system, characterized in that, include: The ultrapure water system consists of a primary reverse osmosis unit (1), a high-pressure pump (2), a secondary reverse osmosis unit (3), an ultrapure water tank (4), a transfer pump (5), an ultraviolet sterilizer (6), and a polishing mixed bed (7). A main pipe is provided between the bodies of the ultrapure water purifier and the two ends of the main pipe are respectively set as inlet (101) and outlet. The first-stage reverse osmosis device (1) is located at the inlet (101) of the main pipe, and the polishing mixed bed (7) is located at the outlet of the main pipe to improve the water quality of the ultrapure water.

2. The laboratory ultrapure water system of claim 1, wherein The primary reverse osmosis device (1), the high-pressure pump (2), the secondary reverse osmosis device (3), the ultrapure water tank (4), the delivery pump (5), the ultraviolet sterilizer (6), and the polishing mixed bed (7) are connected in series on the main pipeline.

3. The laboratory ultrapure water system of claim 1, wherein, The primary reverse osmosis device (1) and the secondary reverse osmosis device (3) are arranged close to each other, and the primary reverse osmosis device (1) is directly connected to the secondary reverse osmosis device (3) through the main pipeline.

4. A laboratory ultrapure water system according to claim 1, characterized in that, The high-pressure pump (2) is connected in series between the first-stage reverse osmosis device (1) and the second-stage reverse osmosis device (3), and is installed and connected to the main pipeline to pressurize the ultrapure water of the first-stage reverse osmosis device (1) into the second-stage reverse osmosis device (3).

5. The laboratory ultrapure water system of claim 1, wherein, The first-stage reverse osmosis device (1) includes four reverse osmosis tubes connected in series. The inlet of one of the reverse osmosis tubes is connected to the inlet (101) of the main pipeline, and the outlet of one of the reverse osmosis tubes is connected to the main pipeline to form a circulation structure.

6. The laboratory ultrapure water system of claim 5, wherein, One of the reverse osmosis pipes of the first-stage reverse osmosis unit (1) is connected to a drain outlet (102).

7. A laboratory ultrapure water system according to claim 1, characterized in that, The secondary reverse osmosis device (3) includes three reverse osmosis tubes, which are connected in series, and two of the reverse osmosis tubes are respectively connected to the inlet and outlet interfaces of the main pipeline.

8. A laboratory ultrapure water system according to claim 7, characterized in that, The inlet and outlet of one of the reverse osmosis tubes of the secondary reverse osmosis device (3) are respectively connected to a cleaning inlet (301) and a cleaning outlet (302), and a cleaning tank is connected between the cleaning inlet (301) and the cleaning outlet (302).

9. The laboratory ultrapure water system of claim 1, wherein, The ultrapure water tank (4) is located on one side of the secondary reverse osmosis device (3), and the interface of the ultrapure water tank (4) is connected to the secondary reverse osmosis device (3). The outlet of the ultrapure water tank (4) is connected to the main pipeline. The ultrapure water tank (4) is also connected to a drain outlet (401).

10. A laboratory ultrapure water system according to claim 1, characterized in that, The delivery pump (5) and the ultraviolet sterilizer (6) are installed on the main pipeline between the polishing mixed bed (7) and the ultrapure water tank (4).

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