Injection water preparation device

Abstract

The utility model relates to an injection water preparation device. The device comprises a first water storage tank, a pretreatment assembly, a first ultraviolet treatment module, a purification assembly, a degassing assembly, a second ultraviolet treatment module and an electrodeionization assembly which are communicated in sequence, the pretreatment assembly is used for filtering impurities in raw material water and softening the water; the first ultraviolet treatment module is used for deactivating microorganisms in the raw material water; the purification assembly is used for removing ions and residual microorganisms in the raw material water; the degassing assembly is used for removing carbon dioxide in the raw material water; the second ultraviolet treatment module can form charged hydroxyl in the raw material water; the electric desalting assembly can enable charged ions to directionally move, so that organic matters combined with charged hydroxyl groups in the raw material water directionally move and are removed. The raw material water can be treated at normal temperature to obtain the injection water meeting the requirements, the production cost is lower, and the safety is higher; volatile impurities, organic matters and other impurities which are difficult to remove in the raw material water are effectively removed, and the obtained water for injection is relatively high in quality.

Description

Technical Field

[0001] This application relates to the field of water treatment technology, and in particular to an apparatus for preparing water for injection. Background Technology

[0002] With the development of water treatment technology, preparation technology for water for injection has emerged. Water for injection is commonly used in the medical field and therefore has high quality requirements. In the production process of water for injection, it is necessary to thoroughly remove impurities from the raw water, such as water-insoluble precipitates, water-soluble ions, microorganisms, and organic matter, ultimately obtaining water for injection with high purity.

[0003] In related technologies, raw water is usually treated by distillation to obtain water with higher purity for use as water for injection.

[0004] However, the aforementioned high-temperature distillation method typically requires steam or heating equipment to vaporize a large amount of raw water, consuming significant amounts of steam or fuel. Furthermore, high-temperature distillation places relatively high demands on equipment safety, resulting in higher production costs and safety requirements. Additionally, the raw water may contain volatile impurities such as carbon dioxide, which cannot be effectively removed by high-temperature distillation, leading to lower quality water for injection. Utility Model Content

[0005] Therefore, it is necessary to provide a water-for-injection preparation device to address the issues of high production cost and low quality of water for injection.

[0006] This application provides an apparatus for preparing water for injection, which includes a first water storage tank, a pretreatment component, a first ultraviolet treatment module, a purification component, a degassing component, a second ultraviolet treatment module, and an electro-desalination component connected in sequence.

[0007] The first water storage tank has an inlet on its surface; the pretreatment component is used to filter impurities in the raw water and soften it; the first ultraviolet treatment module is used to decompose chlorination bonds in the raw water and inactivate microorganisms in it; the purification component is used to remove ions and residual microorganisms from the raw water after treatment by the first ultraviolet treatment module; the degassing component is used to remove oxygen and carbon dioxide from the raw water; the second ultraviolet treatment module can form charged hydroxyl groups inside the raw water; the electro-desalination component can adsorb organic matter in the raw water and direct charged ions to move in a specific direction, so that the organic matter in the raw water combined with charged hydroxyl groups moves in a specific direction; the electro-desalination component has an outlet.

[0008] In some embodiments, the pretreatment component includes a sand filter, a softening resin filter, and a security filter, which are connected in sequence; the sand filter is connected to the first water storage tank; and the security filter is connected to the first ultraviolet treatment module.

[0009] In some embodiments, the pretreatment component further includes a detection component located between the security filter and the first ultraviolet treatment module, the detection component being used to detect the particulate matter concentration and hardness of the flowing raw water.

[0010] In some embodiments, the first ultraviolet treatment module includes a first processing chamber and a first ultraviolet lamp disposed in the first processing chamber. The first ultraviolet lamp emits light with a wavelength of 200nm-400nm to remove chlorination bonds in the raw water within the first ultraviolet treatment module and to inactivate microorganisms in the raw water.

[0011] In some embodiments, the purification component includes a high-pressure pump and a reverse osmosis membrane that are interconnected, the high-pressure pump being connected to the first processing chamber; and the reverse osmosis membrane being connected to the degassing component.

[0012] In some embodiments, the second ultraviolet treatment module includes a second treatment chamber and a second ultraviolet lamp disposed in the second treatment chamber. The wavelength of the light emitted by the second ultraviolet lamp is 170nm-190nm, so as to form charged hydroxyl groups inside the raw water.

[0013] In some embodiments, the electro-desalination assembly includes an electro-desalination shell, anion and cation exchange membranes, anion and cation exchange resins, and aion and cation plates. The anion and cation exchange membranes, the anion and cation exchange resins, and the aion and cation plates are all disposed inside the electro-desalination shell. The surface of the electro-desalination shell has an outlet. The interior of the electro-desalination shell is connected to the second ultraviolet treatment module. The aion and cation plates are used to form a directional electric field to cause the anions and cations in the raw water to move in a directional manner. The anion and cation exchange membranes can allow specific ions to pass through, so that the anions and cations are distributed on both sides of the anion and cation exchange membranes.

[0014] In some embodiments, the water for injection preparation apparatus further includes a second water storage tank, a first pipeline, and a heat exchanger. The second water storage tank is connected to the outlet of the electro-desalination component and is used to store the liquid treated by the electro-desalination component. Both ends of the first pipeline are connected to the second water storage tank, and the heat exchanger is located on the first pipeline and is connected to the second water storage tank through the first pipeline.

[0015] In some embodiments, the water for injection preparation apparatus further includes a third ultraviolet treatment module, which includes a third treatment chamber and a third ultraviolet lamp disposed in the third treatment chamber. The third treatment chamber is connected to the heat exchanger through the first pipeline.

[0016] In some embodiments, the water-for-injection preparation apparatus further includes a second pipeline, a dispensing pump, and an ozone generator. The inlet of the dispensing pump is connected to the second water storage tank, one outlet of the dispensing pump is connected to one end of the first pipeline, and the other outlet of the dispensing pump is connected to one end of the second pipeline. The other end of the second pipeline is connected to the second water storage tank. The ozone generator is located in the second pipeline.

[0017] In the aforementioned water-to-injection preparation apparatus, raw water enters the first storage tank through the inlet. When preparation is required, the raw water in the first storage tank flows into the pretreatment component, which removes large-sized impurities and calcium and magnesium ions, softening the raw water. The pretreated raw water then enters the first ultraviolet (UV) treatment module, where microorganisms lose activity under UV irradiation, and chloride bonds decompose. Subsequently, the raw water flows into the degassing component to remove oxygen and carbon dioxide, preventing carbon dioxide from weakening the charged hydroxyl groups generated in the second UV treatment module. The raw water then flows into the second UV treatment module, where charged hydroxyl groups are generated. These charged hydroxyl groups combine with organic matter in the raw water, making the organic matter charged for subsequent processing. The treated raw water then enters the electro-desalination component, where charged organic matter is directed to a designated location for removal. The liquid treated by the electro-desalination component is discharged through the outlet. The above structure enables the treatment of raw water at room temperature to obtain water for injection that meets the requirements, with low production costs and high safety. In addition, it can effectively remove volatile impurities and organic matter that are difficult to remove from the raw water, resulting in high-quality water for injection. Attached Figure Description

[0018] Figure 1 This is an embodiment of a water-for-injection preparation apparatus according to this application, showing the overall structural connection of the apparatus.

[0019] Figure 2 This is a schematic diagram showing the connection between the first water storage tank and the second water storage tank of an embodiment of the water-for-injection preparation apparatus of this application.

[0020] Figure 3 This is a schematic diagram of the connection between the first and second pipelines of an embodiment of a water-for-injection preparation apparatus according to this application.

[0021] In the diagram, 100 is the first water storage tank; 110 is the booster pump; 200 is the pretreatment component; 300 is the first ultraviolet treatment module; 400 is the purification component; 410 is the high-pressure pump; 420 is the reverse osmosis membrane; 500 is the degassing component; 600 is the second ultraviolet treatment module; 700 is the electro-desalination component; 800 is the first pipeline; 810 is the second water storage tank; 820 is the heat exchanger; 830 is the third ultraviolet treatment module; 840 is the distribution pump; 900 is the second pipeline; and 910 is the ozone generator. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0023] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] See Figure 1 , Figure 1The diagram shows the overall connection structure of a water-for-injection preparation device according to an embodiment of this application. The water-for-injection preparation device provided in an embodiment of this application includes a first water storage tank 100, a pretreatment component 200, a first ultraviolet treatment module 300, a purification component 400, a degassing component 500, a second ultraviolet treatment module 600, and an electro-desalination component 700 connected in sequence. The surface of the first water storage tank 100 is provided with an inlet (not shown in the figure); the pretreatment component 200 is used to filter impurities in the raw water and soften the raw water; the first ultraviolet treatment module 300 is used to decompose the chlorination bonds in the raw water and inactivate the microorganisms in the raw water; the purification component 400 is used to remove ions and residual microorganisms in the raw water after treatment by the first ultraviolet treatment module 300; the degassing component 500 is used to remove oxygen and carbon dioxide from the raw water; the second ultraviolet treatment module 600 can form charged hydroxyl groups inside the raw water; the electro-desalination component 700 can adsorb organic matter in the raw water and can cause charged ions to move in a directional manner, so that the organic matter in the raw water combined with charged hydroxyl groups moves in a directional manner; the electro-desalination component 700 is provided with an outlet (not shown in the figure).

[0026] See Figure 1 and Figure 2 It should be noted that the raw water enters the first water storage tank 100 from outside the device through the inlet, and is stored inside the first water storage tank 100. The first water storage tank 100, the pretreatment component 200, the first ultraviolet treatment module 300, the purification component 400, the degassing component 500, the second ultraviolet treatment module 600, and the electro-desalination component 700 are sequentially connected by sealed pipes, so that the raw water in the first water storage tank 100 can pass through the above structures in sequence, and the raw water flowing through it can be treated sequentially.

[0027] When preparing water for injection, the raw water in the first storage tank 100 flows to the pretreatment component 200. The pretreatment component 200 blocks larger particulate impurities (such as sand, gravel, etc.) from the raw water to prevent water-insoluble impurities from entering subsequent treatment processes. The pretreatment component 200 also removes calcium and magnesium ions from the raw water, softening it. The pretreatment component 200 ensures that the level of floating matter and hardness in the raw water meets treatment standards, facilitating further processing. After treatment by the pretreatment component 200, the raw water flows into the first ultraviolet (UV) treatment module 300. The first UV treatment module 300 treats the flowing raw water with ultraviolet light to decompose chloride bonds in the raw water, preventing chloride bonds from reacting with substances in subsequent processes and reducing treatment effectiveness. It also inactivates microorganisms in the raw water, ensuring it meets hygiene standards. The inactivated microorganisms flow with the raw water into the purification component 400. The purification component 400 removes inactivated microbial debris and ions from the raw water through blocking or chemical reactions, improving the purity of the raw water and facilitating subsequent processing. The degassing unit 500, by setting up a membrane structure and a gas extraction device (vacuum pump, etc.), can remove carbon dioxide and oxygen from the raw water flowing through it, improve the purity of the raw water, and prevent gaseous impurities in the raw water from affecting subsequent steps and causing a decrease in treatment efficiency.

[0028] The second ultraviolet (UV) treatment module 600 irradiates the raw water with ultraviolet light, generating charged hydroxyl groups in the water. Simultaneously, it alters the state of organic matter, causing electrophilic reactions or electron transfer between the charged hydroxyl groups and the organic matter, thus charging the organic matter. The raw water treated by the second UV treatment module 600 then enters the electro-desalination unit 700, which causes the charged organic matter in the raw water to move directionally and removes it. This results in a highly pure liquid, which is discharged from the outlet of the electro-desalination unit 700 for use.

[0029] The above-described setup sequentially removes insoluble impurities, ions, microorganisms, carbon dioxide, oxygen, and organic matter from the raw water, effectively eliminating impurities and resulting in water of high purity. This process is conducted at room temperature, is relatively low-cost, and offers high safety.

[0030] In addition, a booster pump 110 is provided between the first water storage tank 100 and the pretreatment component 200 to ensure that the raw water in the first water storage tank 100 obtains a certain pressure and flows forward along the interior of the device, so that the raw water can flow sequentially through the pretreatment component 200, the first ultraviolet treatment module 300, the purification component 400, the degassing component 500, the second ultraviolet treatment module 600, and the electro-desalination component 700 to treat the raw water accordingly.

[0031] In some embodiments, the pretreatment component 200 includes a sand filter, a softening resin filter, and a security filter, which are connected in sequence; the sand filter is connected to the first water storage tank 100; and the security filter is connected to the first ultraviolet treatment module 300.

[0032] It should be noted that the raw water entering the pretreatment component 200 sequentially passes through a sand filter, a softening resin filter, and a security filter. The sand filter contains sand of various diameters, which blocks larger insoluble impurities in the flowing raw water, thus removing these impurities and preventing large particles from clogging subsequent treatment devices. The softening resin filter contains softening resin, which adsorbs calcium and magnesium ions in the raw water, reducing its hardness. The security filter further removes insoluble impurities from the raw water. Through these methods, insoluble impurities in the raw water can be effectively removed, and its hardness reduced.

[0033] In some embodiments, the pretreatment component 200 further includes a detection component located between the security filter and the first ultraviolet treatment module 300, which is used to detect the particulate matter concentration and hardness of the raw water flowing through it.

[0034] It should be noted that the detection components are located at the outlet of the security filter and can be a liquid hardness detector and a suspended solids detector to determine whether the raw water treated by the pretreatment component 200 meets the requirements. If it does not meet the requirements, the raw water needs to be further treated for subsequent treatment processes. This avoids clogging of subsequent treatment devices due to excessive suspended solids in the raw water and improves operational safety.

[0035] In some embodiments, the first ultraviolet treatment module 300 includes a first processing chamber and a first ultraviolet lamp disposed in the first processing chamber. The wavelength of the light emitted by the first ultraviolet lamp is 200nm-400nm, so as to remove the chlorination chemical bonds in the raw water in the first ultraviolet treatment module 300 and cause the microorganisms in the raw water to lose their activity.

[0036] Preferably, the outer shell of the first processing chamber is made of stainless steel, and it is equipped with an ultraviolet intensity detector and a control system. The ultraviolet intensity detector is used to detect the irradiation intensity of the first ultraviolet lamp inside the first processing chamber. The irradiation intensity of the first ultraviolet lamp is adjusted in real time according to the water volume inside the first processing chamber, in conjunction with the control system, to fully inactivate the microorganisms and reduce the free chlorine content in the raw water. The inactivated microorganisms remain in the raw water and enter subsequent treatment processes along with the raw water.

[0037] In some embodiments, the purification component 400 includes a high-pressure pump 410 and a reverse osmosis membrane 420 that are interconnected, with the high-pressure pump 410 connected to a first processing chamber and the reverse osmosis membrane 420 connected to a degassing component 500.

[0038] It should be noted that the operating principle of the reverse osmosis membrane is as follows: By applying high pressure, the liquid flows from the side with a higher solute concentration to the side with a lower solute concentration. The interior of the reverse osmosis membrane 420 can block the solute in the liquid, achieving separation of the liquid and solute and removing the corresponding solute. The feed water entering the reverse osmosis membrane 420 is first pressurized by the high-pressure pump 410 to ensure that the pressure of the feed water entering the reverse osmosis membrane 420 meets the treatment standards of the reverse osmosis membrane 420, so that most of the ions and microbial residues in the feed water can be removed through the reverse osmosis membrane 420.

[0039] In some embodiments, the second ultraviolet treatment module 600 includes a second treatment chamber and a second ultraviolet lamp disposed in the second treatment chamber. The light emitted by the second ultraviolet lamp has a wavelength of 170nm-190nm to form charged hydroxyl groups inside the raw water.

[0040] It should be noted that the light emitted by the second ultraviolet lamp has a wavelength of 185nm or 172nm, which has a good treatment effect. The second ultraviolet lamp irradiates the raw water in the second treatment chamber, causing charged hydroxyl groups to be generated in the raw water. At the same time, the organic matter in the raw water will change its state under the irradiation of the second ultraviolet lamp, making the organic matter charged under the action of the charged hydroxyl groups. Since the raw water is treated by the degassing component before entering the second ultraviolet treatment module to remove carbon dioxide and oxygen, carbon dioxide is prevented from weakening the charged hydroxyl groups, thus improving the effect of charging the organic matter. Through the above settings, it is ensured that the organic matter in the raw water is charged, and the charged organic matter enters the electro-desalination component 700 with the raw water for subsequent treatment.

[0041] In some embodiments, the electro-desalination assembly 700 includes an electro-desalination shell, anion and cation exchange membranes, anion and cation exchange resins, and aion and cation plates. The anion and cation exchange membranes, anion and cation exchange resins, and aion and cation plates are all disposed inside the electro-desalination shell. The surface of the electro-desalination shell has an outlet. The interior of the electro-desalination shell is connected to a second ultraviolet treatment module. The aion and cation plates are used to form a directional electric field to cause the anions and cations in the raw water to move in a directional manner. The anion and cation exchange membranes can allow specific ions to pass through so that the anions and cations are distributed on both sides of the anion and cation exchange membranes.

[0042] It should be noted that after charged organic matter enters the electro-desalination unit 700 along with the raw water, the cation and anion exchange membranes are located in the middle of the anode and cathode plates. By adjusting the properties of the cation and anion exchange membranes, cations and anions pass through the membranes separately on both sides, resulting in one side containing cationic organic matter and the other side containing anionic organic matter. Subsequently, the charged organic matter is adsorbed by the anode and cathode resins, adhering to their surfaces. During this process, the anode and cathode plates are energized to form an electric field in a specific direction. Under the influence of the electric field, the charged organic matter adhering to the anode and cathode resins moves directionally, causing it to leave the resin surface and be uniformly removed. This ensures that the resin surface is always in a state with low levels of charged organic matter, preventing the resin efficiency from decreasing due to saturation, thus improving the treatment efficiency and service life of the electro-desalination unit 700. The liquid treated by the electro-desalination unit 700 is discharged through the outlet for use. Through the above setup, organic matter and charged particles in the raw water can be effectively removed, improving liquid purity and achieving high treatment efficiency.

[0043] See Figure 1 and Figure 3 In some embodiments, the water for injection preparation apparatus further includes a second water storage tank 810, a first pipeline 800, and a heat exchanger 820. The second water storage tank 810 is connected to the outlet of the electro-deionization component 700 and is used to store the liquid treated by the electro-deionization component. The two ends of the first pipeline 800 are respectively connected to the second water storage tank 810. The heat exchanger 820 is disposed on the first pipeline 800 and is connected to the second water storage tank 810 through the first pipeline 800.

[0044] It should be noted that the liquid treated by the electro-deionization unit 700 is discharged through the outlet and stored in the second water storage tank 810 for subsequent treatment or use. Both ends of the first pipeline 800 are connected to the second water storage tank 810, forming a circulation pipeline. Liquid in the second water storage tank 810 can enter the first pipeline 800 from one end, flow through the heat exchanger 820, and then return to the second water storage tank 810 from the other end. The heat exchanger 820 can regulate the temperature of the liquid in the second water storage tank 810 (heating or cooling), allowing the liquid to be adjusted to a suitable temperature according to usage conditions for convenient use or subsequent treatment.

[0045] In some embodiments, the water for injection preparation apparatus further includes a third ultraviolet treatment module 830, which includes a third treatment chamber and a third ultraviolet lamp disposed in the third treatment chamber. The third treatment chamber is connected to a heat exchanger 820 through a first pipeline 800.

[0046] It should be noted that the liquid in the second water storage tank 810 flows sequentially through the first pipeline 800 to the third ultraviolet treatment module 830 and the heat exchanger 820. Since there may be microorganisms growing in the second water storage tank 810 or the pipeline, the third ultraviolet treatment module 830 can deactivate the microorganisms in the flowing liquid to ensure that the liquid in the second water storage tank 810 meets hygiene requirements when it is taken out.

[0047] In some embodiments, the water for injection preparation apparatus further includes a second pipeline 900, a distribution pump 840, and an ozone generator 910. The inlet of the distribution pump 840 is connected to the second water storage tank 810, one outlet of the distribution pump 840 is connected to one end of the first pipeline 800, and the other outlet of the distribution pump 840 is connected to one end of the second pipeline 900. The other end of the second pipeline 900 is connected to the second water storage tank 810. The ozone generator 910 is located in the second pipeline 900.

[0048] It should be noted that the ozone generator 910 is located in the second pipeline 900 and can generate ozone to disinfect and deodorize the liquid flowing through it. When the liquid in the second water storage tank 810 needs to be treated, the liquid enters the inlet of the distribution pump 840. The distribution pump 840 is adjusted according to the required treatment of the liquid, and the distribution pump 840 controls the liquid to flow into the second pipeline 900. The liquid then flows through the ozone generator 910 for disinfection and deodorization. After the liquid is treated by the ozone generator 910, residual ozone will remain inside. The ozone in the liquid can be decomposed by the third ultraviolet treatment module 830. Therefore, when treating the liquid, the distribution pump 840 first controls the liquid to flow into the second pipeline 900. The liquid treated by the ozone generator 910 flows back into the second water storage tank 810. Then, the distribution pump 840 controls the liquid in the second water storage tank 810 to enter the first pipeline 800. The third ultraviolet treatment module 830 decomposes the ozone in the liquid and eliminates the microorganisms in the liquid, finally obtaining a liquid with high purity and storing it in the second water storage tank 810.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An apparatus for preparing water for injection, characterized in that, It includes a first water storage tank, a pretreatment component, a first ultraviolet treatment module, a purification component, a degassing component, a second ultraviolet treatment module, and an electro-desalination component connected in sequence; The first water storage tank has an inlet on its surface; the pretreatment component is used to filter impurities in the raw water and soften the raw water; the first ultraviolet treatment module is used to decompose the chlorination bonds in the raw water and inactivate the microorganisms in the raw water. The purification component is used to remove ions and residual microorganisms from the raw water after treatment by the first ultraviolet treatment module; the degassing component is used to remove oxygen and carbon dioxide from the raw water; the second ultraviolet treatment module can form charged hydroxyl groups inside the raw water; the electro-desalination component can adsorb organic matter in the raw water and can cause charged ions to move in a directional manner, so that the organic matter in the raw water that is combined with charged hydroxyl groups can move in a directional manner; the electro-desalination component is provided with an outlet.

2. The apparatus for preparing water for injection according to claim 1, characterized in that, The pretreatment component includes a sand filter, a softening resin filter, and a security filter, which are connected in sequence; the sand filter is connected to the first water storage tank; and the security filter is connected to the first ultraviolet treatment module.

3. The apparatus for preparing water for injection according to claim 2, characterized in that, The pretreatment component also includes a detection component located between the security filter and the first ultraviolet treatment module. The detection component is used to detect the particulate matter concentration and hardness of the raw water flowing through it.

4. The apparatus for preparing water for injection according to claim 1, characterized in that, The first ultraviolet treatment module includes a first processing chamber and a first ultraviolet lamp disposed in the first processing chamber. The wavelength of the light emitted by the first ultraviolet lamp is 200nm-400nm, so as to remove the chlorination chemical bonds in the raw water in the first ultraviolet treatment module and cause the microorganisms in the raw water to lose their activity.

5. The apparatus for preparing water for injection according to claim 4, characterized in that, The purification component includes a high-pressure pump and a reverse osmosis membrane that are interconnected. The high-pressure pump is connected to the first processing chamber, and the reverse osmosis membrane is connected to the degassing component.

6. The apparatus for preparing water for injection according to any one of claims 4 or 5, characterized in that, The second ultraviolet treatment module includes a second treatment chamber and a second ultraviolet lamp disposed in the second treatment chamber. The wavelength of the light emitted by the second ultraviolet lamp is 170nm-190nm, so as to form charged hydroxyl groups inside the raw water.

7. The apparatus for preparing water for injection according to claim 1, characterized in that, The electro-desalination assembly includes an electro-desalination shell, anion and cation exchange membranes, anion and cation exchange resins, and aion and cation plates. The anion and cation exchange membranes, anion and cation exchange resins, and aion and cation plates are all disposed inside the electro-desalination shell. The surface of the electro-desalination shell has an outlet. The interior of the electro-desalination shell is connected to the second ultraviolet treatment module. The aion and cation plates are used to form a directional electric field to cause the anions and cations in the raw water to move in a directional manner. The anion and cation exchange membranes can allow specific ions to pass through, so that the anions and cations are distributed on both sides of the anion and cation exchange membranes.

8. The apparatus for preparing water for injection according to claim 1, characterized in that, It also includes a second water storage tank, a first pipeline and a heat exchanger. The second water storage tank is connected to the outlet of the electro-desalination component and is used to store the liquid treated by the electro-desalination component. Both ends of the first pipeline are connected to the second water storage tank, and the heat exchanger is located on the first pipeline and connected to the second water storage tank through the first pipeline.

9. The apparatus for preparing water for injection according to claim 8, characterized in that, It also includes a third ultraviolet processing module, which includes a third processing chamber and a third ultraviolet lamp disposed in the third processing chamber. The third processing chamber is connected to the heat exchanger through the first pipeline.

10. The apparatus for preparing water for injection according to claim 8, characterized in that, It also includes a second pipeline, a distribution pump, and an ozone generator. The inlet of the distribution pump is connected to the second water storage tank, one outlet of the distribution pump is connected to one end of the first pipeline, and the other outlet of the distribution pump is connected to one end of the second pipeline. The other end of the second pipeline is connected to the second water storage tank. The ozone generator is located in the second pipeline.

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