A reagent supply device for a titration analyzer and methods of using the same

Abstract

The application discloses a reagent supply device for a titration analyzer and a use method thereof, and the device comprises a container barrel, a liquid supply unit and a liquid adding unit. The container barrel is internally provided with titration reagents, and a first through hole is arranged at the top end of the container barrel. The liquid supply unit is arranged at the top end of the container barrel and is in communication with the inside of the container barrel. The liquid adding unit is arranged at the top end of the container barrel and is in communication with the inside of the container barrel through the first through hole. The liquid adding unit comprises a liquid inlet pipe and a liquid guide pipe. The top pipe opening of the liquid inlet pipe is connected with the first through hole. The top of the liquid guide pipe is connected with the bottom pipe opening of the liquid inlet pipe, and the bottom of the liquid guide pipe extends to the bottom of the container barrel. The application can effectively prevent the added titration reagents from generating air bubbles, prevent the liquid suction pipe from being filled with air, effectively improve the working efficiency of the titration analyzer, effectively prevent liquid splashing during the pouring of the added titration reagents, and ensure the personal safety of operators.

Description

Technical Field

[0001] This invention relates to the field of semiconductor technology, and more specifically to a reagent supply device for a titration analyzer and its usage method. Background Technology

[0002] As a crucial component of the slurry supply system for chemical polishing machinery, the slurry dilution supply equipment plays a vital role, with the titration analyzer acting as a key component. The titration analyzer titrates the slurry according to a set hydrogen peroxide concentration and determines whether the hydrogen peroxide concentration in the prepared slurry falls within the set standard range. Operators use this information to determine if the concentration of the slurry supplied by the dilution supply equipment is abnormal. If the hydrogen peroxide concentration in the prepared slurry is abnormal, the production line will inevitably be affected, ranging from abnormal chemical polishing speed to wafer scrapping. Therefore, ensuring that the hydrogen peroxide concentration in the slurry after titration by the titration analyzer is within acceptable limits is of paramount importance.

[0003] The titrants required for titrating grinding slurries in a titration analyzer are generally dilute sulfuric acid and cerium sulfate. These two titrants need to be added manually into separate titration containers. Currently, the inlet for adding titrants and the outlet for supplying liquid to the titration analyzer are in the same location on the container. Therefore, during the addition of titrants, the suction tube connected to the titration analyzer must first be detached from the container before the titrant is poured in. However, because there is a height difference between the location where the titrant is poured and the liquid level in the container, air bubbles are generated when the titrant is poured to the bottom of the container, affecting the continuous liquid absorption of the titration analyzer. Furthermore, after detaching the suction tube, air will enter the tube, affecting the continuous use of the titration analyzer after the titrant is added. Additionally, if the tilting angle is too large during the pouring process, the titrant flowing out of the container may collide with other lines on the production line, easily causing liquid splashing and personal injury. Therefore, there is a need for a titration reagent supply device that can effectively prevent bubbles in the titration reagent and improve the working efficiency of the titration analyzer. Summary of the Invention

[0004] The purpose of this invention is to provide a reagent supply device for a titration analyzer and its usage method, which prevents the generation of bubbles in the titration reagent during the liquid addition process, improves the working efficiency of the titration analyzer, and at the same time prevents liquid splashing during the liquid addition process, ensuring the personal safety of the operator.

[0005] To achieve the above objectives, the present invention provides a reagent supply device for a titration analyzer, comprising:

[0006] A container bucket containing titration reagents, with a first through hole at the top of the container bucket;

[0007] The liquid supply unit is located at the top of the container and is connected to the inside of the container. It draws the titration reagent to supply liquid to the titration analyzer.

[0008] The liquid addition unit is located at the top of the container and communicates with the inside of the container through the first through hole to add titration reagent into the container.

[0009] The liquid addition unit includes:

[0010] The liquid inlet pipe has its top end connected to the first through hole, and the diameter of the top end of the liquid inlet pipe is larger than the diameter of its bottom end.

[0011] The liquid guide tube has its top connected to the bottom end of the liquid inlet tube, and its bottom extends into the container to the bottom of the container.

[0012] Optionally, the inlet pipe adopts a conical structure.

[0013] Optionally, the inner wall of the bottom end of the inlet pipe is provided with a first groove; the top outer wall of the guide pipe is provided with a first protrusion that matches the first groove; the top of the guide pipe is inserted from the bottom end of the inlet pipe, so that the first protrusion is embedded in the first groove.

[0014] Optionally, a second groove is provided on the inner wall of the first through hole; a second boss matching the second groove is provided on the outer wall of the top opening of the liquid inlet pipe; the liquid inlet pipe is inserted into the first through hole, so that the second boss is embedded in the second groove.

[0015] Optionally, the inlet pipe and the guide pipe are integrally formed and connected, and / or the inlet pipe and the first through hole are integrally formed and connected.

[0016] Optionally, the bottom end of the liquid guide tube is spaced apart from the bottom end of the container; the spaced distance is 4cm.

[0017] Optionally, the liquid addition unit further includes a connecting pipe, which is connected to the top end of the liquid inlet pipe and extends outward from the container.

[0018] Optionally, the liquid filling unit further includes a liquid filling cap, which is connected to the connecting pipe and covers the first through hole.

[0019] Optionally, a sealing element is provided between the liquid filling cap and the connecting pipe.

[0020] Optionally, the top of the container barrel is provided with a second through hole, through which the liquid supply unit communicates with the inside of the container barrel.

[0021] Optionally, the liquid supply unit includes:

[0022] A liquid supply sealing cap is fixedly installed on the top of the container barrel and covers the second through hole; and the liquid supply sealing cap is provided with a third through hole;

[0023] The bottom end of the suction tube passes through the third through hole and extends to the bottom of the container, and the top end is connected to the titration analyzer.

[0024] Optionally, the liquid supply unit further includes a fixing member disposed between the third through hole and the liquid extraction tube, which fixes the liquid extraction tube to the liquid supply sealing cover.

[0025] Optionally, it also includes: a liquid level monitoring unit;

[0026] The liquid level monitoring unit includes: a liquid level gauge, installed on the wall of the container, which monitors the liquid level of the titration reagent inside the container in real time; and a liquid level alarm, placed outside the container and connected to the liquid level gauge signal, which receives the monitoring results from the liquid level gauge and determines whether to sound an alarm based on the monitoring results.

[0027] Optionally, the container, liquid supply unit, and liquid addition unit are all made of corrosion-resistant plastic.

[0028] In addition, the present invention also provides a method of using a device for supplying reagents to a titration analyzer. When adding solution, the liquid addition cap is opened and the newly added titration reagent is poured into the inlet of the connecting tube, so that the titration reagent flows through the liquid inlet tube and along the liquid guide tube to the bottom of the container.

[0029] Compared with the prior art, the technical solution of the present invention has at least the following beneficial effects:

[0030] The device described in this invention adds a liquid supply unit to the container, eliminating the need to remove the liquid supply unit when adding titrants. This prevents air from entering the suction tube after disassembly, which could affect the continuous operation of the titration analyzer and effectively improves its efficiency. Furthermore, by incorporating a liquid guide tube, the titrant flows directly into the bottom of the container, preventing air bubbles from forming due to height differences during pouring. Finally, by adding a connecting tube at the top of the inlet tube, the filling port of the titrant replenishment container can directly contact the top of the connecting tube, preventing liquid splashing during addition and ensuring operator safety. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the reagent supply device for a titration analyzer according to the present invention.

[0032] Figure 2 This is a structural diagram of the liquid supply unit of the reagent supply device for a titration analyzer according to the present invention.

[0033] In the diagram, 1-container, 21-inlet pipe, 22-liquid guide pipe, 23-liquid filling cap, 31-liquid supply sealing cap, 32-liquid extraction pipe, and 33-fixed component. Detailed Implementation

[0034] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] like Figure 1 As shown, the present invention provides a reagent supply device for a titration analyzer, comprising: a container 1, a supply unit, and a dispensing unit. The container 1 is capable of holding titration reagents. The supply unit and the dispensing unit are both located at the top of the container 1 and communicate with the interior of the container 1.

[0038] The container 1 is made of corrosion-resistant plastic material and has a first through hole at its top. The liquid addition unit is connected through the first through hole and inserted into the interior of the container 1, thereby adding titration reagent into the container 1.

[0039] The liquid addition unit includes an inlet pipe 21 and a guide pipe 22. The top end of the inlet pipe 21 is integrally formed and connected to the first through hole, and the inlet pipe 21 has a tapered structure, meaning the diameter of the top end of the inlet pipe 21 matches the diameter of the first through hole and is larger than the diameter of the bottom end, preventing titration reagent residue from remaining in the inlet pipe 21 during the liquid addition process. Furthermore, the top end of the inlet pipe 21 is fixedly connected to the edge of the first through hole in the container 1, at which point the top end of the inlet pipe 21 and the top surface of the container 1 are on the same plane. The guide pipe 22 is integrally formed and connected to the inlet pipe 21, its top end is fixedly connected to the bottom end of the inlet pipe 21, and its bottom extends through the first through hole into the bottom of the container 1. The diameter of the liquid guide tube 22 matches the diameter of the bottom end of the liquid inlet tube 21, so that the added titration solvent can flow into the bottom of the container 1 sequentially along the inner wall of the liquid inlet tube 21 and the liquid guide tube 22. This prevents the added titration reagent from colliding with the surface of the titration reagent inside the container 1 and generating bubbles due to the height difference between the addition position and the titration reagent level in the container 1.

[0040] In a preferred embodiment, the distance between the bottom end of the liquid guide tube 22 and the bottom end of the container 1 is 4 cm. At this distance, the maximum height difference between the position where the titrant is added and the liquid level of the titrant in the container 1 is 4 cm, effectively reducing the generation of air bubbles in the titrant inside the container 1 during titration. Furthermore, as the liquid level of the titrant inside the container 1 rises, once the liquid level exceeds 4 cm, the newly added titrant flows out of the bottom end of the liquid guide tube 22 by gravity and is added from below the liquid level in the container 1 until the titrant is fully added, effectively preventing the generation of air bubbles in the titrant inside the container 1 during titration.

[0041] In a preferred embodiment, the liquid addition unit further includes a connecting tube. The bottom diameter of the connecting tube matches the diameter of the top opening of the liquid inlet pipe 21, and is fixed to the top opening of the liquid inlet pipe 21, extending outwards from the container 1. This allows the top opening of the liquid inlet pipe 21 with the connecting tube to protrude beyond the top surface of the container 1, collecting the titrant added to the top opening of the liquid inlet pipe and preventing newly added titrant from flowing to the outside of the top opening of the liquid inlet pipe when it is poured into the container 1. When adding titrant, the inlet of the liquid addition container used for replenishing titrant can be placed at the top opening of the connecting tube, and the container can be tilted so that all added titrant flows into the liquid inlet pipe 21 along the connecting tube, preventing splashing of added titrant and ensuring the operator's personal safety.

[0042] In a preferred embodiment, the liquid addition unit further includes a liquid addition cap 23. The liquid addition cap 23 is disposed at the top end of the connecting pipe, and its diameter is the same as the diameter of the top opening of the liquid inlet pipe 21, allowing the liquid addition cap 23 to cover the top opening of the connecting pipe, thereby sealing the first through hole. Furthermore, a sealing element is provided between the liquid addition cap 23 and the connecting pipe, allowing the liquid addition cap 23 to be sealed together with the top end of the liquid inlet pipe 21, preventing dust from falling into the container 1 after liquid addition, and simultaneously preventing leakage of the titration reagent inside the container 1.

[0043] Furthermore, the top of the container barrel 1 is also provided with a second through hole, which allows the liquid supply unit to pass through the second through hole and be inserted into the interior of the container barrel 1.

[0044] The liquid supply unit includes a liquid supply sealing cap 31 and a liquid extraction tube 32. The liquid supply sealing cap 31 is located at the top of the container 1, and its diameter matches the second through hole so that it can cover the second through hole of the container 1; and the liquid supply sealing cap 31 is provided with a third through hole. The diameter of the liquid extraction tube 32 is less than or equal to the diameter of the third through hole, so that its bottom end can pass through the third through hole on the liquid supply sealing cap 31 and extend to the bottom of the container 1. The top end of the liquid extraction tube 32 is connected to a titration analyzer to provide titration reagent to the titration analyzer.

[0045] Specifically, a sealing tube is fixed at the second through hole of the container barrel 1. The outer diameter of the sealing tube is the same as the diameter of the second through hole, and the outer wall of the sealing tube is provided with a first thread. The inner wall of the liquid supply sealing cap 31 is provided with a second thread that matches the first thread on the outer wall of the sealing tube, so that the liquid supply sealing cap 31 is fixed together with the container barrel 1.

[0046] In a preferred embodiment, when the diameter of the suction tube is smaller than the diameter of the third through hole, the liquid supply unit further includes a fixing member 33. The fixing member 33 has a fourth through hole at its center that matches the diameter of the suction tube 32, allowing the bottom end of the suction tube 32 to pass through the fourth through hole and be nested on the outer wall of the suction tube 32. The bottom end of the fixing member 33 has a third thread, and the inner wall of the third through hole of the liquid supply sealing cap 31 has a fourth thread that matches the third thread of the fixing member 33, so that the fixing member 33 and the liquid supply sealing cap 31 are fixed together by the threads. At this time, the bottom end of the fixing member 33 is located between the suction tube 32 and the inner wall of the third through hole. Furthermore, since the fixing member 33 is fixed together with the suction tube 32, the suction tube 32 and the liquid supply sealing cap 31 can also be fixed together through the fixing member 33.

[0047] Specifically, both the liquid supply unit and the liquid filling unit are made of corrosion-resistant plastic material.

[0048] The reagent supply device for a titration analyzer described in this invention further includes a liquid level monitoring unit, which is fixedly mounted on the container 1.

[0049] The liquid level monitoring unit is used to monitor the liquid level of the titration reagent in container 1 in real time, and includes a level gauge and a level alarm. The level gauge is installed on container 1, and the type of level gauge can be selected according to project needs to monitor the liquid level of the titration reagent inside container 1 in real time. The level alarm is placed on the outside of container 1, connected to the level gauge signal, and can receive the monitoring results of the level gauge and determine whether to trigger a level alarm based on the monitoring results. The operator can set the level alarm position according to project needs. When the liquid level of the titration reagent inside container 1 is lower than the set level alarm position, the level alarm will sound an alarm to remind the operator to add liquid in time to prevent the titration reagent in container 1 from being too low and affecting the use of the titration analyzer.

[0050] Specifically, when using a built-in level gauge, the gauge is installed on the inner wall of the container and in direct contact with the titrant, allowing for more accurate measurement of the titrant's level. When using an external level gauge, the gauge is installed on the outer surface of the container, effectively preventing the titrant from corroding the gauge, extending its lifespan, and facilitating its relocation.

[0051] In a preferred embodiment, the liquid level alarm is typically positioned above the bottom end of the liquid guide tube 22, allowing the alarm to sound when the titrant inside the container 1 is positioned above the bottom end of the liquid guide tube. At this time, the replenished titrant will flow sequentially along the inlet tube 21 and the liquid guide tube 22, exiting from the bottom end of the liquid guide tube 22. Since the titrant level inside the container 1 is higher than the bottom end of the liquid guide tube 22, the newly added titrant will be added to the container 1 from below the titrant level, effectively preventing air bubbles from forming inside the container 1 when adding titrant.

[0052] When using the device described in this invention, open the liquid addition cap 23, place the liquid addition port of the liquid addition tank at the top end of the connecting tube, and tilt the liquid addition tank so that the titrant in the liquid addition tank flows sequentially along the inner wall of the connecting tube, the inlet tube 21, and the guide tube 22 into the bottom end of the container tank 1. After completing the first liquid addition, place the liquid addition cap 23 on the connecting tube; then insert the bottom end of the suction tube 32 sequentially through the third through hole of the supply sealing cap 31 and the second through hole of the container tank 1 into the interior of the container tank 1, and fix the supply sealing cap 31 to the container tank 1 along the first thread of the sealing tube of the container tank 1; at the same time, connect the top end of the suction tube 32 to the titration analyzer to use the titrant in the container tank 1.

[0053] When the liquid level alarm sounds, a second liquid addition is performed to container 1. At this time, simply open the supply sealing cap 31 in the reverse direction along the first thread of the sealing tube, leaving the supply sealing cap 31 unsealed to ensure pressure balance inside and outside container 1 during reagent addition. Simultaneously, open the filling cap 23 again, allowing the added reagent to flow sequentially along the connecting tube, inlet tube 21, and guide tube 22 into the bottom of container 1. Then, tighten the supply sealing cap 31 again to complete the second addition of the titrant. Because the device does not require complete removal of the supply sealing cap 31 and the extraction tube 32 during the second addition, air can enter the extraction tube 32 after complete removal, preventing disruption to the continuous use of the titration analyzer and effectively improving its efficiency.

[0054] Example 1

[0055] In this embodiment, the top end of the liquid inlet pipe 21 of the liquid adding unit is fixed to the first through hole of the container 1, and the liquid inlet pipe 21 and the liquid guide pipe 22 are detachably connected, which facilitates the replacement of the liquid guide pipe 22.

[0056] The inner wall of the bottom end of the liquid inlet pipe 21 is provided with one or more first grooves, and the outer wall of the top end of the liquid guide pipe 22 is provided with a first protrusion that matches the first groove, and the number of first protrusions matches the number of first grooves; the bottom end of the liquid guide pipe 22 can be passed through the liquid inlet pipe 21, so that the first protrusion at the top end of the liquid guide pipe 22 is embedded in the first groove of the liquid inlet pipe 21, so that the liquid guide pipe 22 and the liquid inlet pipe 21 are connected together.

[0057] Specifically, when the inner wall of the bottom end of the inlet pipe 21 is provided with a first groove and the outer wall of the top end of the guide pipe 22 is provided with a first protrusion, both the first groove and the first protrusion are annular; when the inner wall of the bottom end of the inlet pipe 21 is provided with a plurality of first grooves, the plurality of first grooves are evenly arranged, and the first protrusion matches the first groove, so as to ensure that the connection between the inlet pipe 21 and the guide pipe 22 is subjected to uniform force.

[0058] Example 2

[0059] In this embodiment, the liquid adding unit and the container 1 are detachably connected, facilitating easy replacement of the liquid adding unit. At this time, the liquid guide pipe 22 and the liquid inlet pipe 21 are integrally formed and fixedly connected.

[0060] The inner wall of the first through hole of the container 1 is provided with one or more second grooves, and the outer wall of the top end of the liquid inlet pipe 21 is provided with a second protrusion that matches the second groove, and the number of the second grooves is the same as the number of the second protrusions. The bottom end of the liquid guide pipe 22 can be passed through the first through hole, and the second protrusion at the top end of the liquid inlet pipe 21 can be embedded into the second groove of the container 1.

[0061] Specifically, when a second groove is provided on the inner wall of the first through hole of container 1 and a second protrusion is provided on the outer side of the top end of the liquid inlet pipe 21, both the second groove and the second protrusion are annular; when a plurality of second grooves are provided on the inner wall of the first through hole of container 1, the plurality of second grooves are evenly arranged, and the second protrusion matches the second groove, ensuring that the connection between the liquid inlet pipe 21 and the first through hole of container 1 is subjected to uniform force.

[0062] After replenishing the titrant in container 1 using the method described above, the dispensing unit on container 1 can be removed from the first through-hole, allowing the second protrusion of the inlet pipe 21 to disengage from the second groove of container 1. Simultaneously, the dispensing unit can be inserted into the first through-hole of another container 1 containing the same type of titrant, and the second protrusion of the inlet pipe 21 can be re-inserted into the second groove of another container 1, thus enabling the reuse of the same dispensing unit and reducing its manufacturing cost.

[0063] Example 3

[0064] In this embodiment, the inlet pipe 21 and the guide pipe 22 are detachably connected, and the inlet pipe 21 and the container 1 are detachably connected. The inlet pipe 21 or the guide pipe 22 can be replaced as needed. At the same time, the liquid addition unit for adding the same type of titration reagent can be placed on other containers 1 that hold the same type of titration reagent, reducing the maintenance and manufacturing costs of the liquid addition unit.

[0065] The inner wall of the bottom end of the liquid inlet pipe 21 is provided with one or more first grooves, and the outer wall of the top end of the liquid guide pipe 22 is provided with a first protrusion that matches the first groove, so that the liquid inlet pipe 21 and the liquid guide pipe 22 can be detachably connected.

[0066] Furthermore, the inner wall of the first through hole of the container barrel 1 is provided with one or more second grooves, and the outer wall of the top opening of the liquid inlet pipe 21 is provided with a second boss that matches the second groove, so that the liquid inlet pipe 21 and the container barrel 1 can be detachably connected.

[0067] When adding titration reagent, the bottom end of the liquid guide tube 22 is passed through the liquid inlet tube 21 until the first protrusion at the top of the liquid guide tube 22 is embedded in the first groove of the liquid inlet tube 21, so that the liquid guide tube 22 and the liquid inlet tube 21 are connected together; at the same time, the bottom end of the liquid guide tube 22 is passed through the first through hole until the second protrusion at the top of the liquid inlet tube 21 is embedded in the second groove of the container 1, so that the liquid inlet tube 21 is connected to the container 1.

[0068] In summary, this invention effectively improves the working efficiency of the titration analyzer by adding a liquid addition unit to prevent air from entering the suction tube after the liquid supply unit is disassembled, thus affecting the continuous operation of the titration analyzer. Furthermore, by setting up a liquid guide tube, the added titration reagent can be directed to the bottom of the container, preventing air bubbles during the addition process. Simultaneously, by installing a connecting pipe at the top of the inlet pipe, liquid splashing during reagent addition is prevented, ensuring the operator's safety.

[0069] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A reagent supply device for a titration analyzer, characterized in that, include: A container bucket containing titration reagents, with a first through hole at the top of the container bucket; The liquid supply unit is located at the top of the container and is connected to the inside of the container. It draws the titration reagent to supply liquid to the titration analyzer. The liquid addition unit is located at the top of the container and communicates with the inside of the container through the first through hole to add titration reagent into the container. The liquid addition unit includes: The liquid inlet pipe has its top end connected to the first through hole, and the diameter of the top end of the liquid inlet pipe is larger than the diameter of its bottom end. The liquid guide tube has its top connected to the bottom end of the liquid inlet tube, and its bottom extends into the container to the bottom of the container.

2. The reagent supply device for a titration analyzer according to claim 1, characterized in that, The inlet pipe has a conical structure.

3. The reagent supply device for a titration analyzer according to claim 1, characterized in that, The inner wall of the bottom end of the inlet pipe is provided with a first groove; the outer wall of the top of the guide pipe is provided with a first protrusion that matches the first groove; the top of the guide pipe is inserted from the bottom end of the inlet pipe, so that the first protrusion is embedded in the first groove.

4. The reagent supply device for a titration analyzer according to claim 1, characterized in that, The inner wall of the first through hole is provided with a second groove; the outer wall of the top opening of the liquid inlet pipe is provided with a second boss that matches the second groove; the liquid inlet pipe is inserted into the first through hole, so that the second boss is embedded in the second groove.

5. The reagent supply device for a titration analyzer according to claim 1, characterized in that, The inlet pipe and the guide pipe are integrally formed and connected, and / or the inlet pipe and the first through hole are integrally formed and connected.

6. The reagent supply device for a titration analyzer according to claim 1, characterized in that, The bottom of the liquid guide tube is spaced 4cm from the bottom of the container.

7. The reagent supply device for a titration analyzer according to claim 1, characterized in that, The liquid addition unit further includes a connecting pipe, which is connected to the top end of the liquid inlet pipe and extends outward from the container.

8. The reagent supply device for a titration analyzer according to claim 7, characterized in that, The liquid filling unit further includes a liquid filling cap, which is connected to the connecting pipe and covers the first through hole.

9. The reagent supply device for a titration analyzer according to claim 8, characterized in that, A sealing element is provided between the liquid filling cap and the connecting pipe.

10. The reagent supply device for a titration analyzer according to claim 1, characterized in that, The container barrel has a second through hole at the top, through which the liquid supply unit communicates with the inside of the container barrel.

11. The reagent supply device for a titration analyzer according to claim 10, characterized in that, The liquid supply unit includes: A liquid supply sealing cap is fixedly installed on the top of the container barrel and covers the second through hole; and the liquid supply sealing cap is provided with a third through hole; The bottom end of the suction tube passes through the third through hole and extends to the bottom of the container, and the top end is connected to the titration analyzer.

12. The apparatus for reagent supply in a titration analyzer according to claim 11, characterized in that, The liquid supply unit further includes a fixing component, which is disposed between the third through hole and the liquid extraction tube to fix the liquid extraction tube to the liquid supply sealing cover.

13. The reagent supply device for a titration analyzer according to claim 1, characterized in that, Also includes: Liquid level monitoring unit; The liquid level monitoring unit includes: a liquid level gauge, which is installed on the wall of the container to monitor the liquid level of the titration reagent inside the container in real time; The liquid level alarm is placed outside the container and connected to the liquid level gauge signal. It receives the monitoring results from the liquid level gauge and determines whether to sound an alarm based on the monitoring results.

14. The reagent supply device for a titration analyzer according to claim 1, characterized in that, The container, liquid supply unit, and liquid addition unit are all made of corrosion-resistant plastic.

15. A method of using the apparatus for reagent supply in a titration analyzer according to any one of claims 1-14, characterized in that, When adding solution, open the filling cap and pour the newly added titrant into the inlet of the connecting tube, allowing the titrant to flow through the inlet tube and along the guide tube to the bottom of the container.

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