A laboratory ultrapure water and acid-base water preparation system and device

Abstract

The utility model discloses a laboratory is with ultrapure water and acid -base water system of making water, include: pretreatment module, the input of pretreatment module connects water inlet of tap water, reverse osmosis pure module, reverse osmosis pure module includes high pressure pump, reverse osmosis device and pure water tank, the input of high pressure pump is connected with the output pipeline of pretreatment module, the output of high pressure pump is connected with the input of reverse osmosis device, and the output pipeline of reverse osmosis device is connected with the input of pure water tank, multi -water quality preparation module, multi -water quality preparation module includes and is connected with pure water tank's acid -base water preparation unit, ultrapure water preparation unit and pure water direct -feed unit who sets up in parallel. The utility model discloses a laboratory is with ultrapure water and acid -base water making water device. The water system that the present application provides will prepare the function of four water qualities of pure water, ultrapure water, acid water, alkali water and integrate in one, discard the mode of the dispersed setting of traditional split type equipment, and the overall land area of equipment is greatly reduced, especially adapts the laboratory scene of space nervous.

Description

Technical Field

[0001] This utility model relates to the field of water purification system technology, and in particular to a laboratory ultrapure water and acid-base water purification system and device. Background Technology

[0002] Water quality is one of the key factors affecting the accuracy and reliability of experimental results. Different types of experiments have significantly different water quality requirements. Therefore, laboratories often need to simultaneously provide pure water, ultrapure water, and acidic and alkaline water with specific pH values. However, the current laboratory field generally adopts a split-type water production solution to meet multiple water quality requirements. For example, the integrated intelligent ultrapure water system disclosed in Chinese patent CN201810170291.7 has a single function, that is, it produces corresponding water qualities through independently set pure water preparation equipment, ultrapure water polishing system, and electrolytic acid and alkaline water production devices.

[0003] In practical use, the split-type water purification scheme has the following problems: 1. Laboratories often use split-type equipment to prepare pure water, ultrapure water, and acid / alkaline water separately. Split-type equipment requires separate laboratory space, which not only results in a large equipment footprint and low space utilization, but also significantly increases the initial investment cost and pipeline laying cost due to the independent procurement and installation of each piece of equipment. The dispersed layout of split-type equipment makes the pipeline system intricate and has a large number of interfaces, which increases the installation difficulty and also creates hidden dangers for later maintenance; 2. Split-type equipment has serious problems of water and energy waste. Each piece of equipment operates independently and the water source is not interconnected, so the water resources between the equipment cannot be efficiently integrated and recycled. When multiple pieces of equipment are running at the same time, their respective power systems need to consume energy independently, which further increases the energy consumption of the laboratory; in particular, the preparation of acid / alkaline water usually requires an additional dedicated electrolysis device, which operates separately from the pure water system, increasing equipment costs and causing water waste. Summary of the Invention

[0004] The purpose of this application is to provide a laboratory ultrapure water and acid / alkaline water production system and apparatus to integrate multiple water quality preparation functions and reduce energy consumption.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A laboratory ultrapure water and acid / alkaline water production system includes: a pretreatment module, the input of which is connected to a tap water inlet; a reverse osmosis purification module, comprising a high-pressure pump, a reverse osmosis device, and a pure water tank, wherein the input of the high-pressure pump is connected to the output of the pretreatment module, the output of the high-pressure pump is connected to the input of the reverse osmosis device, and the output of the reverse osmosis device is connected to the input of the pure water tank; and a multi-water quality preparation module, comprising a parallel acid / alkaline water preparation unit, an ultrapure water preparation unit, and a pure water direct supply unit, all of which are connected to the pure water tank.

[0006] The above technical solution, through a pretreatment module, a reverse osmosis purification module, and a multi-water quality preparation module, can prepare and supply four types of water: pure water, ultrapure water, acidic water, and alkaline water. The pretreatment module removes impurities through a three-stage series treatment process. The pure water produced by the reverse osmosis purification module is stored in a pure water tank. The multi-water quality preparation module, through parallel acidic / alkaline water preparation units, ultrapure water preparation units, and a pure water direct supply unit, achieves precise treatment and supply of different water qualities. This effectively solves the problems of large footprint, high cost, resource waste, and complex management associated with traditional split-type water purification equipment, meeting the centralized multi-water quality supply needs of laboratories.

[0007] Preferably, the pretreatment module includes a primary pretreatment device, a secondary pretreatment device, and a tertiary pretreatment device connected in series. The input end of the primary pretreatment device is connected to the tap water inlet, and the output end pipe of the tertiary pretreatment device is connected to the input end of the high-pressure pump.

[0008] Preferably, the primary pretreatment device is a sand filter, the secondary pretreatment device is an activated carbon filter, and the tertiary pretreatment device is a softener.

[0009] Preferably, the acid-base water preparation unit includes a water supply pump, an electrolysis device, an acid water tank, an alkaline water tank, an acid water pump, and an alkaline water pump; the input end of the water supply pump is connected to a pure water tank, the output end of the water supply pump is connected to the input end of the electrolysis device, the acid water output end of the electrolysis device is connected in series with the acid water tank and the acid water pump, the output end of the acid water pump is connected to the acid water outlet, and the alkaline water output end of the electrolysis device is connected in series with the alkaline water tank and the alkaline water pump, the output end of the alkaline water pump is connected to the alkaline water outlet.

[0010] Preferably, the ultrapure water preparation unit includes a pure water supply pump and an ultrapure purification column, an ultraviolet sterilizer, and a terminal filter connected in series. The input end of the pure water supply pump is connected to a pure water tank, the output end of the pure water supply pump is connected to the input end of the ultrapure purification column through a solenoid valve, and the output end of the terminal filter is connected to the ultrapure water outlet.

[0011] Preferably, the pure water direct supply unit consists of a pure water supply pump directly connected to the pure water outlet via a pipeline.

[0012] To achieve an integrated effect, this utility model also provides a laboratory ultrapure water and acid / alkaline water production device, including an integrated chassis, in which the pretreatment module, reverse osmosis purification module, and multi-water quality preparation module are all located.

[0013] In summary, the ultrapure water and acid / alkaline water purification system used in this laboratory has the following beneficial effects: This application provides a laboratory ultrapure water and acid / alkaline water production system that integrates the preparation functions of four types of water: pure water, ultrapure water, acidic water, and alkaline water. It abandons the traditional separate equipment layout, significantly reducing the overall footprint of the equipment, making it particularly suitable for space-constrained laboratory environments. Simultaneously, the integrated design reduces the cost of repeated equipment purchases and complex piping installation, and the integrated structure simplifies the installation process, lowering initial investment and construction difficulty, thus significantly improving the equipment's cost-effectiveness. Through the synergistic effect of multi-stage pretreatment, reverse osmosis, ultrapure water, ultraviolet sterilization, and terminal filtration, the system ensures that the ultrapure water meets standards, while the electrolysis unit's precise pH control meets the requirements for acidic and alkaline water use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a laboratory ultrapure water and acid / alkaline water production system according to the present invention. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms 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 limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0016] Example 1: like Figure 1As shown, a laboratory ultrapure water and acid / alkaline water production system includes: a pretreatment module, the input of which is connected to a tap water inlet 1; a reverse osmosis purification module, comprising a high-pressure pump 5, a reverse osmosis device 6, and a pure water tank 7, wherein the input of the high-pressure pump 5 is connected to the output of the pretreatment module, the output of the high-pressure pump 5 is connected to the input of the reverse osmosis device 6, and the output of the reverse osmosis device 6 is connected to the input of the pure water tank 7; and a multi-water quality preparation module, comprising a parallel acid / alkaline water preparation unit, an ultrapure water preparation unit, and a pure water direct supply unit, all of which are connected to the pure water tank 7.

[0017] The above technical solution, through a pretreatment module, a reverse osmosis purification module, and a multi-water quality preparation module, can produce and supply four types of water: pure water, ultrapure water, acidic water, and alkaline water. The pretreatment module removes impurities through a three-stage series treatment process. The pure water produced by the reverse osmosis purification module is stored in a pure water tank. The multi-water quality preparation module achieves precise treatment and supply of different water qualities through parallel acidic / alkaline water preparation units, ultrapure water preparation units, and a direct pure water supply unit. This effectively solves the problems of large footprint, high cost, resource waste, and complex management associated with traditional split-type water purification equipment, meeting the centralized multi-water quality supply needs of laboratories.

[0018] In implementation, the pretreatment module includes a primary pretreatment device 2, a secondary pretreatment device 3, and a tertiary pretreatment device 4 connected in series. The input end of the primary pretreatment device 2 is connected to the tap water inlet 1, and the output pipe of the tertiary pretreatment device 4 is connected to the input end of the high-pressure pump 5. In this way, the pretreatment module achieves a step-by-step purification effect on the tap water through three stages of pretreatment, removing different types of impurities such as particulate matter, residual chlorine, and hardness. This provides qualified feed water for the subsequent reverse osmosis purification module, reduces the pollution and wear of the reverse osmosis membrane by impurities, extends the service life of the reverse osmosis device, and lays a foundation for the purity and stability of subsequent multi-water quality preparation.

[0019] In practice, the primary pretreatment device 2 is a sand filter, the secondary pretreatment device 3 is an activated carbon filter, and the tertiary pretreatment device 4 is a water softener. Sand filtration precisely traps particulate matter, activated carbon filtration efficiently adsorbs residual chlorine and organic matter, and the water softener effectively reduces water hardness. The synergistic effect of these three components further improves the quality of the pretreated water, preventing malfunctions in subsequent water production processes due to incomplete pretreatment and ensuring the stability of the system operation.

[0020] During implementation, the acid-base water preparation unit includes a feed water pump 9, an electrolysis device 8, an acid water tank 10, an alkaline water tank 11, an acid water pump 12, and an alkaline water pump 13; the input end of the feed water pump 9 is connected to the pure water tank 7, the output end of the feed water pump 9 is connected to the input end of the electrolysis device 8, the acid water output end of the electrolysis device 8 is successively connected in series with the acid water tank 10 and the acid water pump 12, the output end of the acid water pump 12 is connected to the acid water outlet 19, the alkaline water output end of the electrolysis device 8 is successively connected in series with the alkaline water tank 11 and the alkaline water pump 13, and the output end of the alkaline water pump 13 is connected to the alkaline water outlet 20.

[0021] In the acid-base water preparation unit, the core principle of preparing acid water and alkaline water through the electrolysis device is to utilize the water electrolysis reaction and ion migration phenomenon: the pure water transported by the feed water pump and the sodium chloride solution supporting the electrolysis device are diluted in a certain proportion, and a direct current electric field is applied to the diluted solution. On the one hand, electric energy drives the decomposition of water molecules into H + and OH - , on the other hand, Na + , Cl - in the solution undergo directional migration under the action of the electric field (Na + moves towards the cathode, and Cl - moves towards the anode); combining the ion migration law and membrane separation technology (the membrane can selectively allow specific ions to pass through and prevent the cross-regional mixing of Na + and Cl - ), in the anode region, acidic water body is formed due to the enrichment of H + and Cl - , and in the cathode region, alkaline water body is formed due to the enrichment of Na + and OH - . The acidity and alkalinity of the product can be regulated by parameters such as electrolysis time, current intensity, and concentration of sodium chloride dilute solution. It should be noted that the technology of preparing acid water and alkaline water through the electrolysis device is an existing technology, and the specific principle is not within the protection scope of the present utility model.

[0022] In this way, the feed water pump provides stable power for the electrolysis process. The acid-base water generated by the electrolysis device is respectively stored in the acid water tank and the alkaline water tank, and then transported to the use point through the corresponding water pumps. This structural design ensures the continuity of acid-base water preparation and the stability of supply, while avoiding the mixed pollution of acid-base water and solving the problems of unstable water supply and water resource waste caused by the disconnection between the traditional split electrolysis device and the pure water system.

[0023] During implementation, the ultrapure water preparation unit includes a pure water supply pump 14 and an ultrapurification column 15, an ultraviolet sterilizer 16, and a terminal filter 17 connected in series in sequence. The input end of the pure water supply pump 14 is connected to the pure water tank 7, the output end of the pure water supply pump 14 is connected to the input end of the ultrapurification column 15 through a solenoid valve, and the output end of the terminal filter 17 is connected to the ultrapure water outlet 18.

[0024] In this way, the ultrapure purification column removes residual ions, the ultraviolet sterilizer kills microorganisms, and the terminal filter traps tiny particles. These multiple processes work together to ensure that the ultrapure water meets quality standards. The solenoid valve allows for flexible control of the ultrapure water preparation process, adapting to the water requirements of different experimental scenarios and solving the problems of fixed processes and inconvenient control in traditional ultrapure water polishing systems.

[0025] In implementation, the pure water direct supply unit consists of a pure water supply pump 14 directly connected to the pure water outlet 21 via pipeline. This enables direct supply of pure water from the pure water tank, providing a convenient source of pure water for scenarios requiring no deep treatment, such as basic laboratory cleaning and routine solution preparation. No additional power equipment or processing steps are needed, reducing system energy consumption and operating costs. Furthermore, it complements the ultrapure water and acid / alkaline water preparation units, further enhancing the system's adaptability to different water quality requirements. Solenoid valves are installed on the pipeline.

[0026] Specifically, it also includes a control system 22, which includes solenoid valves, sensors, PLC, and touch screen to achieve fully automatic operation. The sensors include water quality sensors, liquid level sensors, and pressure sensors, which are used to monitor water quality parameters, liquid level, and pipeline pressure, respectively. The control system realizes water quality detection, process control, and fault diagnosis and alarm, ensuring stable water quality, efficient operation, and easy operation.

[0027] Example 2: To achieve an integrated effect, this utility model also provides a laboratory ultrapure water and acid / alkaline water production device, including an integrated chassis. The pretreatment module, reverse osmosis purification module, and multi-water quality preparation module are all housed within the integrated chassis. The side wall of the integrated chassis has an inlet port adapted to a tap water inlet, and outlet ports corresponding to acid water outlet, alkaline water outlet, pure water outlet, and ultrapure water outlet, respectively.

[0028] principle: Tap water enters through the tap water inlet 1 and passes through primary pretreatment 2, secondary pretreatment 3, and tertiary pretreatment 4 in sequence to remove impurities such as particulate matter, residual chlorine, and hardness. After being pressurized by the high-pressure pump 5, it enters the reverse osmosis unit 6 to produce pure water, which is then stored in the pure water tank 7.

[0029] The water in the pure water tank can be further treated through three paths: Preparation path of acid and alkaline water: Pure water is sent to the electrolysis device 8 via the water supply pump 9. The acid water and alkaline water produced after electrolysis are stored in the acid water tank 10 and the alkaline water tank 11 respectively, and then transported to the point of use, namely the acid water outlet 19 and the alkaline water outlet 20, via the acid water pump 12 and the alkaline water pump 13.

[0030] Ultrapure water preparation path: Pure water is delivered by pure water supply pump 14, and enters ultrapure purification column 15 for deep purification by solenoid valve control. Then it enters ultraviolet sterilizer 16 for sterilization treatment, and finally passes through terminal filter 17 and is supplied with ultrapure water from ultrapure water outlet 18.

[0031] Pure water: Ordinary pure water is supplied directly through the pure water supply pump 14 from the pure water outlet 21.

[0032] The entire system is centrally managed by the control system 22, which realizes functions such as automatic operation, water quality monitoring, and fault alarm, ensuring stable water quality, efficient operation, and easy operation.

[0033] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalent technical features, this utility model also intends to include these modifications and variations.

Claims

1. A laboratory ultrapure water and acid / alkaline water production system, characterized in that, include: A pretreatment module, the input end of which is connected to the tap water inlet (1); The reverse osmosis purification module includes a high-pressure pump (5), a reverse osmosis device (6), and a pure water tank (7). The input end of the high-pressure pump (5) is connected to the output end of the pretreatment module via a pipeline. The output end of the high-pressure pump (5) is connected to the input end of the reverse osmosis device (6). The output end of the reverse osmosis device (6) is connected to the input end of the pure water tank (7). The multi-water quality preparation module includes an acid-base water preparation unit, an ultrapure water preparation unit, and a pure water direct supply unit arranged in parallel. The acid-base water preparation unit, the ultrapure water preparation unit, and the pure water direct supply unit are all connected to the pure water tank (7).

2. The laboratory ultrapure water and acid / alkaline water production system according to claim 1, characterized in that, The pretreatment module includes a primary pretreatment device (2), a secondary pretreatment device (3) and a tertiary pretreatment device (4) connected in series. The input end of the primary pretreatment device (2) is connected to the tap water inlet (1), and the output end pipe of the tertiary pretreatment device (4) is connected to the input end of the high-pressure pump (5).

3. A laboratory ultrapure water and acid / alkaline water production system according to claim 2, characterized in that, The primary pretreatment device (2) is a sand filter, the secondary pretreatment device (3) is an activated carbon filter, and the tertiary pretreatment device (4) is a softener.

4. A laboratory ultrapure water and acid / alkaline water production system according to claim 1, 2, or 3, characterized in that, The acid-base water preparation unit includes a water supply pump (9), an electrolysis device (8), an acid water tank (10), an alkaline water tank (11), an acid water pump (12), and an alkaline water pump (13). The input end of the water supply pump (9) is connected to the pure water tank (7), and the output end of the water supply pump (9) is connected to the input end of the electrolysis device (8). The acid water output end of the electrolysis device (8) is connected in series with the acid water tank (10) and the acid water pump (12). The output end of the acid water pump (12) is connected to the acid water outlet (19). The alkaline water output end of the electrolysis device (8) is connected in series with the alkaline water tank (11) and the alkaline water pump (13). The output end of the alkaline water pump (13) is connected to the alkaline water outlet (20).

5. A laboratory ultrapure water and acid / alkaline water production system according to claim 1, 2, or 3, characterized in that, The ultrapure water preparation unit includes a pure water supply pump (14) and an ultrapure column (15), an ultraviolet sterilizer (16), and a terminal filter (17) connected in series. The input end of the pure water supply pump (14) is connected to the pure water tank (7), the output end of the pure water supply pump (14) is connected to the input end of the ultrapure column (15) through a solenoid valve, and the output end of the terminal filter (17) is connected to the ultrapure water outlet (18).

6. A laboratory ultrapure water and acid / alkaline water production system according to claim 4, characterized in that, The ultrapure water preparation unit includes a pure water supply pump (14) and an ultrapure column (15), an ultraviolet sterilizer (16), and a terminal filter (17) connected in series. The input end of the pure water supply pump (14) is connected to the pure water tank (7), the output end of the pure water supply pump (14) is connected to the input end of the ultrapure column (15) through a solenoid valve, and the output end of the terminal filter (17) is connected to the ultrapure water outlet (18).

7. A laboratory ultrapure water and acid / alkaline water production system according to claim 5, characterized in that, The pure water direct supply unit is composed of a pure water supply pump (14) directly connected to the pure water outlet (21) through a pipeline.

8. A laboratory ultrapure water and acid / alkaline water production system according to claim 6, characterized in that, The pure water direct supply unit is composed of a pure water supply pump (14) directly connected to the pure water outlet (21) through a pipeline.

9. A laboratory-grade ultrapure water and acid / alkaline water production device, characterized in that, The system includes a laboratory ultrapure water and acid / alkaline water production system as described in any one of claims 1-8, and further includes an integrated chassis, wherein the pretreatment module, the reverse osmosis purification module, and the multi-water quality preparation module are all housed within the integrated chassis.

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