Liquid preparation system and use method thereof

Abstract

The invention discloses a liquid preparation system and a using method thereof, and relates to the technical field of liquid preparation, the liquid preparation system comprises a workbench, one side of the workbench is provided with a feeding module used for inputting a liquid storage tank to be subjected to liquid preparation, and the other side of the workbench is provided with a discharging module used for outputting the liquid storage tank after liquid preparation; wherein an inert gas protection module, a solvent input module and a chemical liquid input module are sequentially arranged on the workbench; the inert gas protection module is used for inputting inert gas into the liquid storage tank, the solvent input module is used for quantitatively inputting a solvent used for being matched with chemical liquid into the liquid storage tank, and the chemical liquid input module is used for quantitatively inputting the chemical liquid into the liquid storage tank; the solvent input module is used for quantitatively inputting the solvent for preparing the chemical liquid into the liquid storage tank, and finally the chemical liquid input module is used for inputting the quantitative chemical liquid into the liquid storage tank, so that the effect of quantitatively preparing the chemical liquid and the solvent is realized.

Description

A liquid preparation system and its usage method Technical Field

[0001] This invention relates to the field of liquid preparation technology, and in particular to a liquid preparation system and its usage method. Background Technology

[0002] In the fields of pharmaceuticals, fine chemicals, and biotechnology, the preparation of solutions for specific chemical substances is often involved. Some chemical substances, such as easily oxidized substances (e.g., certain vitamins, nutrient solutions containing unsaturated fatty acids), easily hygroscopic substances (e.g., concentrated sulfuric acid, anhydrous ethanol), and highly active drugs, have strict requirements for the operating environment during solution preparation. They need to be completely isolated from air (especially oxygen, moisture, or microorganisms) to prevent the chemical substances from deteriorating, becoming ineffective, producing toxic byproducts, or causing safety risks.

[0003] In existing technologies, the typical process for preparing solutions that require air isolation is as follows: First, a treated solvent (such as purified water, water for injection, or organic solvent) is quantitatively introduced into a storage tank via a metering device. Then, the chemical solution to be prepared (the stock solution) is quantitatively introduced into the same storage tank via another metering device, allowing it to mix with the solvent and thus completing the solution preparation. To minimize air contact, operators usually seal the tank opening as soon as possible after preparation.

[0004] However, in practical applications, the above operating method is difficult to guarantee complete isolation from air. Its structural defects and shortcomings in usage are mainly reflected in the following two aspects: During the liquid preparation process, the tank opening needs to remain open to allow the chemical liquid delivery tip (such as an IV tube or dispensing nozzle) to be inserted and added. Only after the dispensing is completed and the delivery tip is removed can the operator seal the tank opening. During this brief interval between the completion of dispensing and sealing, air inevitably comes into contact with the internal space of the tank, causing contamination of the internal gas environment. For extremely sensitive substances, even a trace amount of air entering can render the entire tank of liquid unusable. Furthermore, manual or semi-automatic sealing operations are prone to human error, making it difficult to guarantee ideal isolation every time.

[0005] During the process of transferring chemical liquids into the storage tank through the tank opening, residual air on the outer wall and inside the delivery tip can be introduced into the storage tank along with the liquid transfer. This is especially true during the stages when the delivery tip is inserted into the tank but before liquid transfer begins, and again when the delivery tip is removed from the liquid surface. At these times, air can easily come into contact with the chemical liquid inside the tip or the gas inside the tank, leading to contact between the chemical liquid and the air. Existing delivery tip structures lack effective air isolation designs, failing to eliminate this risk of contamination. Summary of the Invention

[0006] This invention provides a liquid preparation system and its usage method, which can solve the following problems existing in the prior art: 1) the sealing of the tank opening has lag and uncertainty; 2) the delivery end itself is the medium for introducing air.

[0007] A liquid preparation system includes a workbench. One side of the workbench is equipped with a feeding module for inputting the liquid to be prepared into a storage tank, and the other side is equipped with a discharging module for outputting the prepared liquid into a storage tank. The workbench is also sequentially equipped with an inert gas protection module, a solvent input module, and a chemical liquid input module. The inert gas protection module is used to input inert gas into the storage tank, the solvent input module is used to quantitatively input a solvent for preparing the liquid with the chemical liquid into the storage tank, and the chemical liquid input module is used to quantitatively input a chemical liquid into the storage tank.

[0008] Preferably, the liquid storage tank includes a tank body with a circular opening on the tank body; wherein, a sealing module is provided at the opening for automatically opening or closing the opening.

[0009] Preferably, the sealing module includes a sealing seat for fitting into the can opening, the side of the sealing seat facing inwards from the can being fixedly connected to a support, and the outer diameter of the support being larger than the outer diameter of the sealing seat; wherein, at least two sets of limiting seats are fixedly arranged circumferentially along the outer edge of the support, and a support rod is fixedly arranged on the side of the limiting seat facing inwards from the top of the can, the other end of the support rod being slidably embedded in a support cylinder, the support cylinder being fixed to the top of the can, and a telescopic spring being provided inside the support cylinder.

[0010] Preferably, both the feeding module and the unloading module include a conveyor belt arranged on the workbench, with one end of the conveyor belt extending to the feeding end and the other end extending to the unloading end.

[0011] Preferably, an arc-shaped conveyor plate is fixedly arranged on the workbench, with both ends of the arc-shaped conveyor plate receiving the conveyor belt. A lower turntable is coaxially arranged on the arc-shaped conveyor plate, and an upper turntable is fixedly arranged on the lower turntable. A rotary motor is fixedly arranged on the workbench, and the output end of the rotary motor is fixedly connected to the lower turntable through a reducer. The outer edges of the lower turntable and the upper turntable are provided with several sets of arc-shaped grooves for embedding liquid storage tanks in a circumferential array. The outer edges of the lower turntable and the upper turntable are also provided with arc-shaped limiting frames corresponding to the arc-shaped conveyor plate.

[0012] Preferably, the inert gas protection module includes a gas delivery end with at least one set of gas delivery holes along its side. The gas delivery end is fixed to a gas delivery plate, which is connected to a lifting electric cylinder that drives its lifting and lowering. The inert gas protection module also includes a vacuum tube and a gas delivery pipe. The gas delivery plate is slidably sleeved on the vacuum tube and the gas delivery pipe. The vacuum tube is connected to a vacuum pump fixed to a workbench, and the gas delivery pipe is connected to a gas delivery pump fixed to the workbench. The other end of the gas delivery pump is connected to a gas storage tank for storing inert gas. The end of the vacuum tube away from the vacuum pump is connected to a first branch pipe, and the end of the gas delivery pipe away from the gas delivery pump is connected to a second branch pipe. Both the first and second branch pipes are connected to a reversing valve, which is connected to the gas delivery end via a telescopic hose.

[0013] Preferably, the solvent input module includes a first infusion end, the bottom of which is closed, and at least one set of first infusion holes are opened along its side. The first infusion end is fixed to the infusion plate. A screw is rotatably arranged on the worktable, the top of which is fixed to the output end of the lifting motor. A nut that is fixedly connected to the infusion plate is screwed on the screw. The first infusion end is connected to an infusion pump for conveying solvent through an infusion tube.

[0014] Preferably, the chemical liquid input module includes a second infusion end, the bottom of which is closed, and at least one set of second infusion holes are opened along its side. A lifting plate is fixed to one side of the second infusion end, and the lifting plate is fixed to the drive end of the adjusting electric cylinder. The chemical liquid input module also includes a storage cylinder for storing chemical liquid. The storage cylinder is fixed to the workbench by a mounting bracket. A liquid guide pump for conveying chemical liquid is provided at the bottom of the storage cylinder. The output end of the liquid guide pump is connected to the infusion cylinder. A drain pipe is provided at the bottom of the infusion cylinder. The second infusion end is slidably inserted into the bottom end of the drain pipe.

[0015] Preferably, a sealing ring is fitted on the outer side of the first infusion end and the second infusion end, and the sealing ring is fixed to the workbench by a bracket, with the lower surface of the sealing ring flush with the top of the storage tank.

[0016] A method for using a liquid preparation system includes the following steps: a feeding module feeds several sets of storage tanks containing liquids to be prepared one by one; after the feeding module feeds the storage tanks, an inert gas protection module introduces inert gas into the storage tanks to expel the air initially present in the storage tanks; a solvent input module quantitatively inputs the solvent used for preparing the liquid with the chemical liquid into the storage tanks; a chemical liquid input module quantitatively inputs the chemical liquid into the storage tanks to quantitatively prepare the chemical liquid and solvent; after the preparation is completed, a discharging module discharges the prepared storage tanks.

[0017] This invention provides a liquid preparation system and its usage method, including the following beneficial effects: 1) After the feeding module of this invention feeds the liquid storage tank, it can first introduce inert gas into the liquid storage tank through the inert gas protection module to expel the air initially present in the liquid storage tank and avoid subsequent interference with the preparation of the chemical liquid. Secondly, it introduces a quantitative amount of solvent for preparation with the chemical liquid into the liquid storage tank through the solvent input module. Finally, it introduces a quantitative amount of chemical liquid into the liquid storage tank through the chemical liquid input module, thereby achieving the effect of quantitative preparation of chemical liquid and solvent; 2) By setting a sealing module at the tank opening, this invention can open the tank opening through the sealing module when introducing inert gas, solvent or chemical liquid into the liquid storage tank. After the introduction is completed, the sealing module automatically seals the tank opening, thereby ensuring that the inert gas is properly sealed during the introduction of the chemical liquid. During the process of dispensing solvents or chemical solutions, the outside air will not exchange gases with the inside of the tank through the tank opening, thus ensuring the airtightness of the tank. This prevents the chemical solution from coming into contact with the outside air during the entire dispensing process, improving the quality of the dispensing. 3) In the initial state, both the first and second dispensing ends are embedded in the sealing ring. When the storage tank is delivered to the area directly below the first and second dispensing ends, the top of the storage tank fits against the sealing ring, and then the first and second dispensing ends are driven to embed into the tank opening to dispensing the solution. After the dispensing is completed, the first and second dispensing ends can be reset to the sealing ring. During this process, the sealing ring is always in a closed state for the dispensing hole, preventing the dispensing hole from coming into contact with the outside air and causing contamination of the chemical solution. Attached Figure Description

[0018] Figure 1 is a three-dimensional structural schematic diagram of a liquid preparation system provided by the present invention; Figure 2 is a front view structural schematic diagram of a liquid preparation system provided by the present invention; Figure 3 is a side view structural schematic diagram of a liquid preparation system provided by the present invention; Figure 4 is a top view structural schematic diagram of a liquid preparation system provided by the present invention; Figure 5 is a two-dimensional structural schematic diagram of a liquid preparation system provided by the present invention; Figure 6 is a cross-sectional three-dimensional structural schematic diagram of a liquid preparation system provided by the present invention; Figure 7 is a cross-sectional planar structural schematic diagram of a liquid preparation system provided by the present invention; Figure 8 is a cross-sectional three-dimensional structural schematic diagram of a liquid storage tank in a liquid preparation system provided by the present invention; Figure 9 is a cross-sectional planar structural schematic diagram of a liquid storage tank in a liquid preparation system provided by the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Lower turntable; 3. Liquid storage cylinder; 4. Inert gas protection module; 5. Solvent input module; 6. Liquid storage tank; 7. Chemical liquid input module; 101. Feeding module; 102. Loading module; 103. Mounting frame; 104. Conveyor belt; 201. Upper turntable; 202. Arc-shaped groove; 203. Arc-shaped conveying plate; 204. Arc-shaped limit frame; 205. Rotary motor; 301. Liquid pump; 302. Liquid delivery cylinder; 401. Vacuum pump; 402. Gas pump; 403. Gas delivery plate; 404. Vacuum tube; 405. Gas delivery pipe; 406. First branch pipe; 407. Reversing valve; 4 08. Second branch pipe; 409. Gas delivery end; 410. Telescopic hose; 411. Gas delivery port; 501. Screw; 502. Nut; 503. Lifting motor; 504. First infusion end; 505. Infusion pipe; 506. Infusion plate; 507. First infusion port; 601. Tank body; 602. Tank opening; 603. Sealing seat; 604. Support; 605. Telescopic spring; 606. Support cylinder; 607. Limiting seat; 608. Support rod; 701. Second infusion end; 702. Sealing ring; 703. Bracket; 704. Adjusting electric cylinder; 705. Second infusion port; 706. Lifting plate; 707. Drain pipe. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] Example 1

[0022] As shown in Figures 1 to 5, an embodiment of the present invention provides a liquid preparation system, including a workbench 1. One side of the workbench 1 is provided with a feeding module 102 for inputting the liquid storage tank 6 to be prepared, and the other side is provided with a discharging module 101 for outputting the prepared liquid storage tank 6. Specifically, in this embodiment, during liquid preparation, the feeding module 102 can feed several groups of liquid storage tanks 6 to be prepared one by one. After feeding is completed, each liquid storage tank 6 is prepared one by one. After preparation is completed, the discharging module 101 is used to discharge the prepared liquid storage tank 6.

[0023] In this embodiment, an inert gas protection module 4, a solvent input module 5, and a chemical liquid input module 7 are sequentially arranged on the workbench 1. Specifically, the inert gas protection module 4 is used to input inert gas into the storage tank 6, the solvent input module 5 is used to quantitatively input the solvent for mixing with the chemical liquid into the storage tank 6, and the chemical liquid input module 7 is used to quantitatively input the chemical liquid into the storage tank 6. It can be noted that after the feeding module 102 of this embodiment feeds the storage tank 6, it can first input the inert gas into the storage tank 6 through the inert gas protection module 4 to discharge the inert gas. The air initially present in the storage tank 6 prevents subsequent interference with the preparation of the chemical solution. Next, the solvent input module 5 quantitatively inputs the solvent used for preparing the chemical solution into the storage tank 6. Finally, the chemical solution input module 7 quantitatively inputs the chemical solution into the storage tank 6, achieving the effect of quantitatively preparing the chemical solution and solvent. Correspondingly, this embodiment can be achieved by setting metering valves on the solvent input module 5 and the chemical solution input module 7 to separately meter the input solvent and chemical solution, thereby achieving the preparation effect and meeting different application scenarios of the chemical solution.

[0024] Example 2

[0025] Based on Embodiment 1, and referring to Figures 3-8, the liquid storage tank 6 in this embodiment includes a tank body 601 with a circular opening 602. A sealing module is provided at the opening 602 for automatically opening or closing the opening. It can be noted that by providing a sealing module at the opening 602, when inert gas, solvent, or chemical liquid is introduced into the liquid storage tank 6, the opening 602 can be opened through the sealing module. After the introduction is completed, the sealing module automatically closes the opening 602. This ensures that during the introduction of inert gas, solvent, or chemical liquid, outside air will not exchange gases with the inside of the tank through the opening 602, thus guaranteeing the airtightness of the tank body 601. This prevents the chemical liquid from contacting outside air during the entire liquid preparation process, improving the quality of the prepared solution.

[0026] Specifically, the sealing module includes a sealing seat 603 for fitting into the can opening 602. The side of the sealing seat 603 facing inwards is fixedly connected to a support 604. The outer diameter of the support 604 is larger than the outer diameter of the sealing seat 603. At least two sets of limiting seats 607 are circumferentially fixedly arranged along the outer edge of the support 604. A support rod 608 is fixedly arranged on the side of the limiting seat 607 facing the top of the can body 601. The other end of the support rod 608 is slidably embedded in a support cylinder 606. The support cylinder 606 is fixed to the top of the can body 601. A telescopic spring 605 is provided inside the support cylinder 606. One end of the telescopic spring 605 is fixed to the bottom of the cylinder, and the other end is fixed to the end of the support rod 608. It can be noted that in the initial state... Based on the extension spring 605, the sealing seat 603 can be pressed into the tank opening 602 to achieve the effect of sealing the tank opening 602. When it is necessary to input inert gas, solvent or chemical liquid into the tank, the sealing seat 603 can be pushed to move inward into the tank to open the tank opening 602. At this time, the extension spring 605 can be stretched by the support rod 608 to generate a spring. After the input is completed, the extension spring 605 can drive the sealing seat 603 to re-embed into the tank opening 602 under the action of elasticity and close it again. Based on this, in the process of dispensing liquid into the storage tank 6, the extension spring 605 and the sealing seat 603 can cooperate to achieve the effect of adaptively opening or closing the tank opening 602.

[0027] In addition, a sealing cap is provided on the top of the tank 601 in this embodiment. The sealing cap is spirally connected to the tank 601. After the liquid preparation is completed, the top of the tank 601 can be sealed again through the sealing cap to further ensure the sealing effect.

[0028] As one implementation method of this embodiment, referring to Figures 1-6, both the feeding module 102 and the unloading module 101 include a conveyor belt 104 arranged on the workbench 1. One end of the conveyor belt 104 extends to the feeding end and the other end extends to the unloading end. It can be explained that in this embodiment, the storage tanks 6 to be mixed are placed one by one on the conveyor belt 104 at the feeding end. The storage tanks 6 are fed and transported by the conveyor belt 104. After the mixing is completed, the storage tanks 6 are output by the conveyor belt 104 at the unloading end, thereby achieving the effect of automatic feeding and unloading.

[0029] In this embodiment, in order to sequentially transport the liquid storage tank 6 to the inert gas protection module 4, the solvent input module 5, and the chemical liquid input module 7, as shown in Figures 1-6, an arc-shaped conveyor plate 203 is fixedly arranged on the workbench 1. Both ends of the arc-shaped conveyor plate 203 are respectively connected to the conveyor belt 104. A lower turntable 2 is coaxially rotatably arranged on the arc-shaped conveyor plate 203, and an upper turntable 201 is fixedly arranged on the lower turntable 2. A rotary motor 205 is fixedly arranged on the workbench 1, and the output end of the rotary motor 205 is fixedly connected to the lower turntable 2 via a reducer. The outer edges of the lower turntable 2 and the upper turntable 201 are circumferentially arrayed with several sets of arc-shaped grooves 202 for embedding the liquid storage tank 6. It can be said that... It is clear that when the liquid storage tank 6 is fed by the conveyor belt 104 at the feeding end in this embodiment, it can first be embedded in the arc groove 202 of the lower turntable 2 and the upper turntable 201. As the rotary motor 205 drives the lower turntable 2 and the upper turntable 201 to rotate, the lower turntable 2 and the upper turntable 201 can drive the liquid storage tank 6 to move circumferentially through the arc groove 202 to facilitate subsequent liquid injection. After the liquid injection is completed, the lower turntable 2 and the upper turntable 201 can transport the liquid storage tank 6 to the conveyor belt 104 at the discharging end, and the liquid storage tank 6 is output through the conveyor belt 104. Based on this, this embodiment can achieve the effect of automatic feeding and discharging of the liquid storage tank 6 by setting the conveyor belt 104 to cooperate with the lower turntable 2 and the upper turntable 201.

[0030] As one embodiment of this invention, in order to ensure the stability of the liquid storage tank 6 in the arc-shaped groove 202, the outer edges of the lower turntable 2 and the upper turntable 201 are also provided with arc-shaped limiting frames 204 corresponding to the arc-shaped conveying plate 203. It can be noted that when the liquid storage tank 6 in this embodiment is conveyed in the arc-shaped groove 202, it can be limited by the arc-shaped limiting frame 204 to ensure the stability of the conveying.

[0031] In this embodiment, the inert gas protection module 4, the solvent input module 5, and the chemical liquid input module 7 are arranged circumferentially on the outer edges of the lower turntable 2 and the upper turntable 201. It can be explained that as the lower turntable 2 and the upper turntable 201 rotate and transport the liquid storage tank 6, the liquid storage tank 6 can be transported sequentially to the positions of the inert gas protection module 4, the solvent input module 5, and the chemical liquid input module 7, and inert gas, solvent, and chemical liquid are input sequentially.

[0032] In this embodiment, the inert gas protection module 4 includes a gas delivery end 409, the bottom of which is closed, and at least one set of gas delivery holes 411 are opened along its side. The gas delivery end 409 is fixed to a gas delivery plate 403, which is connected to a lifting electric cylinder that drives its lifting and lowering. The inert gas protection module 4 also includes a vacuum tube 404 and a gas delivery pipe 405. The gas delivery plate 403 is slidably sleeved on the vacuum tube 404 and the gas delivery pipe 405. The vacuum tube 404 is connected to a vacuum pump fixed on the workbench 1. 401 is connected, the gas supply pipe 405 is connected to the gas supply pump 402 fixed on the workbench 1, the other end of the gas supply pump 402 is connected to the gas storage tank for storing inert gas, the end of the vacuum pipe 404 away from the vacuum pump 401 is connected to the first branch pipe 406, the end of the gas supply pipe 405 away from the gas supply pump 402 is connected to the second branch pipe 408, the first branch pipe 406 and the second branch pipe 408 are both connected to the reversing valve 407, and the reversing valve 407 is connected to the gas supply end 409 through the telescopic hose 410; It can be explained that when the liquid storage tank 6 in this embodiment is delivered directly below the gas delivery end 409, the first branch pipe 406 is first connected to the telescopic hose 410 by the reversing valve 407. Then, the gas delivery plate 403 is driven to descend by the lifting electric cylinder. The gas delivery plate 403 drives the gas delivery end 409 to descend and embed itself into the tank body 601 along the tank opening 602. The gas delivery end 409 can press down the sealing seat 603 to descend until it separates from the tank opening 602. As the gas delivery hole 411 connects with the inside of the tank, the liquid storage tank 6 can be evacuated. After the vacuum is completed, the second branch pipe 408 can be connected to the telescopic hose 410 by adjusting the reversing valve 407, and the gas pump 402 can be started to deliver inert gas into the tank for protection. After the gas delivery is completed, the lifting electric cylinder drives the gas delivery plate 403 to rise and reset. It should be noted that during the process of the gas delivery end 409 being inserted into the tank opening 602 in this embodiment, the outer wall of the gas delivery end 409 slides and fits against the side wall of the tank opening 602 to ensure the sealing of the tank opening 602 when the gas delivery end 409 enters the tank.

[0033] The solvent input module 5 includes a first infusion end 504, the bottom of which is closed, and at least one set of first infusion holes 507 are opened along its side. The first infusion end 504 is fixed to an infusion plate 506. A screw 501 is rotatably mounted on the workbench 1, the top of which is fixed to the output end of a lifting motor 503. A nut 502, which is fixedly connected to the infusion plate 506, is screwed onto the screw 501. The first infusion end 504 is connected to an infusion pump for transporting solvent via an infusion tube 505. It is clear that when the liquid storage tank 6 of this embodiment is delivered directly below the first infusion end 504, the lifting motor 503 can be activated to drive the screw 501 to rotate. During the lifting and lowering process of the screw 501, the nut 502 can drive the infusion plate 506 to descend. The infusion plate 506 drives the first infusion end 504 to be embedded in the tank opening 602. During the embedding process, the first infusion end 504 and the side wall at the tank opening 602 are in a sliding contact state, thereby achieving a sealing effect and ensuring the sealing of the tank opening 602 when the solvent is introduced, preventing air from entering.

[0034] Specifically, referring to Figures 1-2 and 5-7, the chemical liquid input module 7 includes a second infusion end 701, the bottom of which is closed, and at least one set of second infusion holes 705 are opened along its side. A lifting plate 706 is fixed to one side of the second infusion end 701, and the lifting plate 706 is fixed to the drive end of the adjusting electric cylinder 704. The chemical liquid input module 7 also includes a storage cylinder 3 for storing chemical liquid, which is fixed to the workbench 1 by a mounting bracket 103. A liquid pump 301 for conveying chemical liquid is provided at the bottom of the storage cylinder 3. The output end is connected to an infusion cylinder 302, and the bottom of the infusion cylinder 302 is provided with a drain pipe 707. The second infusion end 701 is slidably inserted into the bottom end of the drain pipe 707. It can be explained that when the storage tank 6 is delivered to the bottom of the second infusion end 701, the second infusion end 701 can be driven to embed into the tank opening 602 by adjusting the electric cylinder 704. During this process, the second infusion end 701 slides against the side wall of the tank opening 602 to ensure a sealing effect. The liquid pump 301 can then deliver the chemical liquid of the storage cylinder 3 into the tank along the second infusion hole 705 to achieve the effect of liquid preparation.

[0035] Furthermore, to prevent the infusion ports of the first infusion tip 504 and the second infusion tip 701 from contacting the outside air, in this embodiment, as shown in Figure 7, a sealing ring 702 is fitted around the outer side of the first infusion tip 504 and the second infusion tip 701. The sealing ring 702 is fixed to the workbench 1 by a bracket 703, and the lower surface of the sealing ring 702 is flush with the top of the storage tank 6. It can be noted that, initially, both the first infusion tip 504 and the second infusion tip 701 are embedded in the sealing ring 702. In the state where the storage tank 6 is delivered to the area directly below the first infusion end 504 and the second infusion end 701, the top of the storage tank 6 is in contact with the sealing ring 702, and then the first infusion end 504 and the second infusion end 701 are driven to embed into the tank opening 602 to realize infusion. After the infusion is completed, the first infusion end 504 and the second infusion end 701 can be reset into the sealing ring 702. During this process, the sealing ring 702 is always in a closed state for the infusion hole to prevent the infusion hole from contacting the outside air and causing chemical contamination.

[0036] A method for using a liquid preparation system includes the following steps: Referring to Figures 1-5, S1, the feeding module 102 feeds several sets of liquid storage tanks 6 to be prepared one by one; S2, after feeding the liquid storage tanks 6, the feeding module 102 introduces inert gas into the liquid storage tanks 6 through the inert gas protection module 4 to expel the air initially present in the liquid storage tanks 6; S3, the solvent input module 5 quantitatively inputs the solvent used for preparing the liquid with the chemical liquid into the liquid storage tanks 6; S4, the chemical liquid input module 7 quantitatively inputs the chemical liquid into the liquid storage tanks 6 to quantitatively prepare the chemical liquid and solvent; S5, after the liquid preparation is completed, the unloading module 101 unloads the prepared liquid storage tanks 6.

[0037] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A solution preparation system, comprising a workbench (1), characterized in that, The workbench (1) is provided with a feeding module (102) on one side for inputting the liquid to be prepared into the storage tank (6), and a discharging module (101) on the other side for outputting the prepared liquid into the storage tank (6); wherein, the workbench (1) is also provided with an inert gas protection module (4), a solvent input module (5) and a chemical liquid input module (7) in sequence; the inert gas protection module (4) is used to input inert gas into the storage tank (6), the solvent input module (5) is used to quantitatively input the solvent for preparing the liquid with the chemical liquid into the storage tank (6), and the chemical liquid input module (7) is used to quantitatively input the chemical liquid into the storage tank (6).

2. The solution preparation system as described in claim 1, characterized in that, The liquid storage tank (6) includes a tank body (601) with a circular opening (602) on the tank body (601); wherein, a sealing module is provided at the opening (602) for automatically opening or closing the opening (602).

3. The solution preparation system as described in claim 2, characterized in that, The sealing module includes a sealing seat (603) for fitting into the can opening (602). The sealing seat (603) is fixedly connected to a support (604) on the side facing the inside of the can. The outer diameter of the support (604) is larger than the outer diameter of the sealing seat (603). At least two sets of limiting seats (607) are fixedly arranged circumferentially on the outer edge of the support (604). A support rod (608) is fixedly arranged on the side of the limiting seat (607) facing the top of the can body (601). The other end of the support rod (608) is slidably embedded in the support cylinder (606). The support cylinder (606) is fixed to the top of the can body (601). A telescopic spring (605) is provided inside the support cylinder (606).

4. The solution preparation system as described in claim 1, characterized in that, The loading module (102) and unloading module (101) both include a conveyor belt (104) arranged on the workbench (1), with one end of the conveyor belt (104) extending to the loading end and the other end extending to the unloading end.

5. A solution preparation system as described in claim 4, characterized in that, An arc-shaped conveyor plate (203) is fixedly arranged on the workbench (1). The two ends of the arc-shaped conveyor plate (203) are respectively connected to the conveyor belt (104). A lower turntable (2) is coaxially arranged on the arc-shaped conveyor plate (203). An upper turntable (201) is fixedly arranged on the lower turntable (2). A rotary motor (205) is fixedly arranged on the workbench (1). The output end of the rotary motor (205) is fixedly connected to the lower turntable (2) through a reducer. The lower turntable (2) and the upper turntable (201) are provided with several sets of arc-shaped grooves (202) for embedding the liquid storage tank (6) in a circumferential array on their outer edges. The lower turntable (2) and the upper turntable (201) are also provided with arc-shaped limiting frames (204) corresponding to the arc-shaped conveyor plate (203).

6. The solution preparation system as described in claim 1, characterized in that, The inert gas protection module (4) includes a gas delivery end (409) with at least one set of gas delivery holes (411) on its side. The gas delivery end (409) is fixed on a gas delivery plate (403). The gas delivery plate (403) is connected to a lifting electric cylinder that drives its lifting and lowering. The inert gas protection module (4) also includes a vacuum tube (404) and a gas delivery pipe (405). The gas delivery plate (403) is slidably sleeved on the vacuum tube (404) and the gas delivery pipe (405). The vacuum tube (404) is connected to a vacuum pump (401) fixed on the workbench (1). The gas delivery pipe (405) is slidably sleeved on the vacuum tube (404) and the gas delivery pipe (405). 05) Connected to the gas pump (402) fixed on the workbench (1), the other end of the gas pump (402) is connected to the gas storage tank for storing inert gas, the end of the vacuum tube (404) away from the vacuum pump (401) is connected to the first branch pipe (406), the end of the gas delivery pipe (405) away from the gas pump (402) is connected to the second branch pipe (408), the first branch pipe (406) and the second branch pipe (408) are both connected to the reversing valve (407), and the reversing valve (407) is connected to the gas delivery end (409) through the telescopic hose (410).

7. A solution preparation system as described in claim 1, characterized in that, The solvent input module (5) includes a first infusion end (504), the bottom end of the first infusion end (504) is closed, and at least one set of first infusion holes (507) are opened on its side edge. The first infusion end (504) is fixed on the infusion plate (506). A screw (501) is rotatably arranged on the workbench (1). The top of the screw (501) is fixed to the output end of the lifting motor (503). A nut (502) that is fixedly connected to the infusion plate (506) is screwed on the screw (501). The first infusion end (504) is connected to an infusion pump for conveying solvent through an infusion tube (505).

8. A solution preparation system as described in claim 7, characterized in that, The chemical liquid input module (7) includes a second infusion end (701), the bottom end of the second infusion end (701) is closed, and at least one set of second infusion holes (705) are opened on its side. A lifting plate (706) is fixed on one side of the second infusion end (701), and the lifting plate (706) is fixed to the drive end of the adjusting electric cylinder (704). The chemical liquid input module (7) also includes a storage cylinder (3) for storing chemical liquid. The storage cylinder (3) is fixed on the workbench (1) by a mounting bracket (103). A liquid pump (301) for conveying chemical liquid is provided at the bottom of the storage cylinder (3). The output end of the liquid pump (301) is connected to the infusion cylinder (302). A drain pipe (707) is provided at the bottom of the infusion cylinder (302). The second infusion end (701) is slidably inserted into the bottom end of the drain pipe (707).

9. A solution preparation system as described in claim 8, characterized in that, A sealing ring (702) is fitted on the outer side of the first infusion end (504) and the second infusion end (701). The sealing ring (702) is fixed on the workbench (1) by a bracket (703). The lower surface of the sealing ring (702) is flush with the top of the storage tank (6).

10. A method of using a liquid preparation system, characterized in that, The system is applied to a liquid preparation system as described in any one of claims 1-9, comprising the following steps: a feeding module (102) feeds several sets of liquid storage tanks (6) to be prepared one by one; after the feeding module (102) feeds the liquid storage tanks (6), an inert gas protection module (4) is used to introduce inert gas into the liquid storage tanks (6) to expel the air initially present in the liquid storage tanks (6); a solvent input module (5) quantitatively inputs the solvent used to prepare the liquid with the chemical liquid into the liquid storage tanks (6); a chemical liquid input module (7) quantitatively inputs the chemical liquid into the liquid storage tanks (6) to quantitatively prepare the chemical liquid with the solvent; after the preparation is completed, the unloading module (101) unloads the prepared liquid storage tanks (6).

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