Filling and dispensing system

Abstract

The utility model embodiment provides a kind of filling liquid system, comprising: by sequentially connected liquid dispensing device, first transfusion device, liquid distributor and second transfusion device;Filling liquid system further includes controller;Liquid distributor includes: main casing, inside has liquid storage cavity;Liquid level sensing component, liquid level sensing component is used to detect the liquid level height in liquid storage cavity;Temperature sensing component, is located on main casing;Wherein, first transfusion device includes first conveying control element, and second transfusion device includes second conveying control element, and controller is electrically connected with first conveying control element, second conveying control element, liquid level sensing component and temperature sensing component respectively;Temperature sensing component is used to detect the temperature of liquid and send temperature data to controller, to make controller control first conveying control element adjustment liquid supplementing speed, and control second conveying control element adjustment filling speed.This embodiment can control liquid conveying, filling speed, reduce filling amount deviation, improve filling precision.

Description

Technical Field

[0001] This utility model relates to the field of food and pharmaceutical packaging machinery and equipment, and in particular to a filling and dispensing system. Background Technology

[0002] Liquid filling systems are widely used in liquid filling production in biopharmaceuticals, food and beverage industries due to their high degree of automation and precise filling. Currently used liquid filling systems typically consist of a liquid preparation device, a first delivery device, a buffer tank, a dispensing device, and a second delivery device. The first delivery device transports the liquid from the liquid preparation device to the buffer tank for temporary storage, then from the buffer tank to the dispensing device, and finally the second delivery device completes the filling process.

[0003] When liquid production requires temperature control, the viscosity and volume of some liquids are easily affected by temperature during filling. However, existing filling systems can only control the start and stop of the first infusion device through feedback signals from a liquid level sensor, achieving intermittent liquid replenishment. This lacks effective detection of the liquid temperature at the end of the filling system before filling, and it also fails to adjust the filling speed in a timely manner to address temperature-induced viscosity changes. This leads to deviations in the filling volume during the liquid filling process, making it difficult to meet the high-precision filling requirements of liquid production. Utility Model Content

[0004] Therefore, in order to overcome at least some of the defects and deficiencies in the prior art, this utility model provides a filling and dispensing system that can regulate the liquid delivery and filling speed, reduce filling volume deviation, and improve filling accuracy.

[0005] Specifically, this utility model provides a filling and dispensing system, characterized in that it includes: a dispensing device, a first infusion device, a dispensing device, and a second infusion device connected sequentially via pipelines; the filling and dispensing system further includes a controller; the dispensing device includes: a main housing with a liquid storage chamber inside, and an inlet on the main housing communicating with the first infusion device; a liquid level sensing component disposed on the main housing, the liquid level sensing component being used to detect the liquid level height in the liquid storage chamber; and a temperature sensing component disposed on the main housing; wherein, the first infusion device includes a first delivery adjustment control, the second infusion device includes a second delivery adjustment control, and the controller is electrically connected to the first delivery adjustment control, the second delivery adjustment control, the liquid level sensing component, and the temperature sensing component respectively; the temperature sensing component is used to detect the temperature of the liquid and send temperature data to the controller, so that the controller controls the first delivery adjustment control to adjust the replenishment speed and controls the second delivery adjustment control to adjust the filling speed.

[0006] In an embodiment of this utility model, the main housing has a temperature measurement mounting port; the temperature sensing component includes: a temperature sensor with a temperature probe; a mounting base fixed to the temperature measurement mounting port, the temperature sensor being detachably connected to the mounting base; and a temperature measurement isolation tube, one end of which is fixedly connected to the mounting base, and the other end passing through the temperature measurement mounting port and extending into the liquid storage chamber; wherein, the temperature measurement isolation tube has a receiving cavity, the receiving cavity being isolated from the liquid storage chamber, the temperature probe being disposed in the receiving cavity, and the temperature measurement isolation tube being used to contact the liquid and transfer the temperature of the liquid to the temperature probe.

[0007] In an embodiment of this utility model, the temperature measuring isolation tube includes a tube wall and a bottom wall. The tube wall has a first end and a second end opposite to each other. The first end is fixedly connected to the mounting base, and the second end passes through the temperature measuring mounting port and extends into the liquid storage cavity. The bottom wall is sealed to the second end, and the first end is provided with a connecting through hole. The temperature measuring probe passes through the connecting through hole and extends into the receiving cavity.

[0008] In an embodiment of this utility model, the mounting base is provided with a vent hole, which is connected to the accommodating cavity through the connecting through hole.

[0009] In an embodiment of this utility model, the liquid level sensing component includes: a first light-transmitting element and a second light-transmitting element, which are spaced apart along a preset direction and both fixed to the main housing; a liquid level sensor transmitter and a liquid level sensor receiver, wherein the liquid level sensor transmitter is fixed to the outside of the main housing and is disposed corresponding to the first light-transmitting element, and the liquid level sensor receiver is fixed to the outside of the main housing and is disposed corresponding to the second light-transmitting element; wherein the liquid level sensor transmitter is used to emit detection light along the preset direction and pass through the first light-transmitting element, the liquid storage cavity, and the second light-transmitting element in sequence to the liquid level sensor receiver to form a detection light path.

[0010] In an embodiment of this utility model, the main housing is provided with a first light-transmitting detection port and a second light-transmitting detection port communicating with the liquid storage chamber; the liquid dispensing device further includes a light-transmitting element mounting base, which includes: a first mounting member and a second mounting member disposed opposite to each other, respectively fixed to the inner and outer sides of the main housing; the first light-transmitting element is fixedly connected between the first mounting member and the second mounting member, and the first light-transmitting element is disposed corresponding to the first light-transmitting detection port; a third mounting member and a fourth mounting member disposed opposite to each other, respectively fixed to the inner and outer sides of the main housing; the second light-transmitting element is fixedly connected between the third mounting member and the fourth mounting member, and the second light-transmitting element is disposed corresponding to the second light-transmitting detection port.

[0011] In an embodiment of this utility model, the liquid separation device further includes: a first sealing member connected between the first light-transmitting member and the first mounting member; a second sealing member connected between the first light-transmitting member and the second mounting member; a third sealing member connected between the second light-transmitting member and the third mounting member; and a fourth sealing member connected between the second light-transmitting member and the fourth mounting member.

[0012] In an embodiment of this invention, the liquid level sensing component and the temperature sensing component are offset from each other.

[0013] In an embodiment of this utility model, the liquid separation device further includes a heat insulation component, which is arranged around the outer peripheral wall of the main housing and fixedly connected to the main housing.

[0014] In an embodiment of this utility model, the main housing is provided with an vent that communicates with the liquid storage chamber, and the liquid distribution device further includes a vent breather, which is located at the vent and communicates with the liquid storage chamber.

[0015] As can be seen from the above, the technical features of this utility model can have one or more of the following beneficial effects: 1) By setting a temperature sensing component in the liquid dispensing device, the temperature sensing component is used to detect the liquid temperature and send the temperature data to the controller, so as to realize the temperature detection of the liquid medicine in the storage chamber before filling. The controller is electrically connected to the temperature sensing component, the first conveying control component, and the second conveying control component, so that the controller can receive the temperature signal in real time and control the first conveying control component to adjust the replenishment speed and the second conveying control component to adjust the filling speed. When the temperature change causes the viscosity and volume of the medicine to fluctuate, the controller adjusts the liquid conveying speed and filling speed to reduce the filling volume deviation and improve the filling accuracy. 2) By integrating the liquid level sensing component and the temperature sensing component into the dispensing device, a linkage mechanism between liquid level replenishment and temperature control is formed. At the same time, the temperature sensing component directly detects the temperature of the liquid to be filled in the dispensing device and sends the data to the controller in real time, which makes up for the lack of end liquid temperature monitoring in traditional filling and dispensing systems and provides reliable temperature data for precise control of filling speed. 3) The liquid level in the storage chamber is detected by the liquid level sensing component, and the controller is electrically connected to the liquid level sensing component and the first delivery control component. The controller can start and stop the liquid replenishment according to the liquid level, so that the amount of liquid stored in the storage chamber is kept relatively stable. Combined with the liquid replenishment speed adjustment driven by temperature data, the filling stability of the filling system is further improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a filling and dispensing system provided in an embodiment of the present invention.

[0018] Figure 2 for Figure 1 A schematic diagram of the liquid separation device in the diagram.

[0019] Figure 3 for Figure 1 A schematic diagram of the module connections for the filling system.

[0020] Figure 4 for Figure 2 A schematic diagram showing the relationship between the mounting base and the temperature measuring isolation tube.

[0021] Figure 5 for Figure 2 A schematic diagram of the cross-section of AA in the diagram.

[0022] Figure 6 for Figure 2 A schematic diagram showing the relationship between the first light-transmitting element, the second light-transmitting element, and the light-transmitting element mounting base.

[0023] Figure 7 for Figure 2 A top view of the liquid separator in the image.

[0024] [Explanation of Key Figure Markings] 1: Filling and dispensing system; 10: Dispensing device; 20: First infusion device; 21: First delivery control; 30: Dispensing device; 301: Mounting bracket; 31: Main housing; 311: Storage chamber; 312: Inlet; 313: First light-transmitting detection port; 314: Second light-transmitting detection port; 315: Drain port; 316: Drain breather; 318: Temperature measuring installation port; 319: Inlet nozzle; 32: First light-transmitting element; 33: Second light-transmitting element; 35: Liquid level sensing component; 351: Liquid level sensor transmitter; 352: Liquid level sensor receiver; 36: Temperature sensing component; 361: Mounting base; 361 1: Vent hole; 362: Temperature measuring isolation tube; 3621: Receptacle cavity; 3622: Tube wall; 3623: Bottom wall; 3624: First end; 3625: Second end; 3626: Connecting through hole; 363: Temperature sensor; 3631: Temperature measuring probe; 37: Light-transmitting component mounting base; 371: First mounting component; 372: Second mounting component; 373: Third mounting component; 374: Fourth mounting component; 381: First sealing component; 382: Second sealing component; 383: Third sealing component; 384: Fourth sealing component; 39: Insulation component; 40: Second infusion device; 41: Second delivery adjustment control; 50: Controller. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments described in this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, top, and bottom) in this embodiment of the invention are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly. Furthermore, the term "vertical" in the embodiments and claims refers to an angle of 90° between two components or a deviation of -5° to +5°, and the term "parallel" refers to an angle of 0° between two components or a deviation of -5° to +5°.

[0027] In this embodiment of the invention, the use of terms such as "first" and "second" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0028] Reference Figure 1 This utility model provides a filling and dispensing system 1, which can be widely used in biopharmaceutical, food and beverage, daily chemical care and other fields. It meets the stringent requirements for liquid filling accuracy, hygiene conditions and temperature control stability. It can achieve high-precision automated filling for liquid drugs or liquid raw materials whose viscosity and volume are easily affected by temperature.

[0029] The filling and dispensing system 1 includes a dispensing device 10, a first infusion device 20, a dispensing device 30, a second infusion device 40, and a controller 50. The dispensing device 10, the first infusion device 20, the dispensing device 30, and the second infusion device 40 are connected sequentially via pipelines. (Refer to...) Figure 1 and Figure 2 The liquid separation device 30 includes a main housing 31, a liquid level sensing component 35, and a temperature sensing component 36.

[0030] The main housing 31 is a hollow cavity structure, made of 316L stainless steel, with its inner wall mirror-polished to a surface roughness Ra of 0.4 μm (Ra being a core parameter for surface roughness), meeting the aseptic and hygienic requirements of the biopharmaceutical and food and beverage industries. Inside, it forms a storage chamber 311 for temporarily storing the liquid to be filled. The liquid inlet 312 on the main housing 31 connects to the first infusion device 20 via a sanitary stainless steel pipe and is sealed to ensure leak-free liquid delivery. The main housing 31 also has an inlet nozzle 319, through which the liquid in the storage chamber 311 is delivered to the second infusion device 40 for filling. It should be noted that all welds on the main housing 31 meet ASME BPE (American Society of Mechanical Engineers Bioprocessing Equipment) standards to prevent material accumulation or microbial growth at the welds.

[0031] A liquid level sensing component 35 is mounted on the main housing 31 and is used to detect the liquid level in the liquid storage chamber 311 and send the liquid level data to the controller 50. A temperature sensing component 36 is mounted on the main housing 31 and is used to detect the liquid temperature and send the temperature data to the controller 50.

[0032] The first infusion device 20 includes a first delivery control unit 21. In this embodiment, the first delivery control unit 21 can be a delivery pump or a flow valve, or it can be a combination of a delivery pump and a flow valve. The delivery pump provides the power for liquid delivery, and the flow valve is used to regulate the flow rate of the delivered liquid. The second infusion device 40 includes a second delivery control unit 41 and a filling needle 42. The structure of the second delivery control unit 41 can be the same as that of the first delivery control unit 21, and will not be described in detail here. The filling needle 42 is connected to the outlet of the second delivery control unit 41 through a branch pipe to ensure that the liquid, after passing through the second delivery control unit 41, can be accurately injected into the target container through the filling needle 42. The number of filling needles 42 can be set to multiple and arranged in an array according to the filling requirements. In addition, the spacing and extension length of the filling needles 42 can be flexibly adjusted to adapt to different specifications of filling containers.

[0033] Reference Figure 3 The controller 50 is electrically connected to the first conveying control unit 21, the second conveying control unit 41, the liquid level sensing component 35, and the temperature sensing component 36, respectively. In this embodiment, the controller 50 can be, for example, a PLC controller. The controller 50 can be equipped with a database to pre-store the corresponding parameters of temperature, viscosity, and filling speed of different liquids. It can receive the liquid level signal from the liquid level sensing component 35 and the temperature signal from the temperature sensing component 36 in real time, and output instructions to the first conveying control unit 21 and the second conveying control unit 41 according to the signals, so as to realize the coordinated control of the first conveying control unit 21 and the second conveying control unit 41.

[0034] In this embodiment, the specific working principle of the filling and dispensing system 1 is as follows: After the dispensing device 10 completes the liquid preparation, the controller 50 sends a start command to the first delivery control 21, which delivers the liquid to the storage chamber 311 through the inlet 312; the liquid level sensing component 35 monitors the liquid level in real time, and when the liquid level is lower than the preset minimum threshold, the controller 50 controls the first delivery control 21 to increase the replenishment speed; at the same time, the temperature sensing component 36 continuously detects the liquid temperature in the storage chamber 311 and transmits the temperature data to the controller 50 in real time; the controller 50 controls the second delivery control 41 to adjust to the filling speed according to the received temperature data to complete precise filling; during the filling process, the controller 50 simultaneously fine-tunes the replenishment speed of the first delivery control 21 according to the filling speed of the second delivery control 41 to ensure that the replenishment and filling rhythm are matched.

[0035] Therefore, the filling and dispensing system 1 provided in this embodiment solves the problem of traditional filling systems lacking end-point temperature detection and temperature-related speed control by integrating a liquid level sensor 35 and a temperature sensor 36 into the dispensing device 30, and coordinating with the controller 50 to control the first conveying control 21 and the second conveying control 41. In this embodiment, the temperature sensor 36 detects the temperature of the liquid to be filled, providing reliable data for speed control, while the liquid level sensor 35 ensures liquid level stability. The two work together to significantly improve the practicality and reliability of the system, meeting the needs of high-precision filling production.

[0036] In one embodiment of this utility model, the temperature sensing component 36 is a temperature sensor with an isolated contact design. (See also...) Figure 2 , Figure 4 and Figure 5 The main housing 31 has a temperature measurement mounting port 318. The temperature sensing component 36 includes a temperature sensor 363, a mounting base 361, and a temperature measurement isolation tube 362. The temperature sensor 363 has a temperature probe 3631, which is suitable for high-precision temperature control requirements. Figure 4 In the figure, D2 is the outer diameter of the temperature measuring isolation tube 362, and D3 is the wall thickness of the temperature measuring isolation tube 362.

[0037] Specifically, the mounting base 361 is fixed to the temperature measuring port 318, for example. The mounting base 361 may be made of 316L steel, for example. The temperature measuring isolation tube 362 may be a thin-walled tube. In this embodiment, the outer diameter of the temperature measuring isolation tube 362 is, for example, 8mm and the wall thickness is, for example, 0.5mm. The temperature measuring isolation tube 362 and the mounting base 361 are fixed by welding, for example. The outer surface is mirror polished to Ra0.4μm, which can significantly improve the corrosion resistance and make it suitable for harsh sanitary environments such as biopharmaceuticals.

[0038] In some embodiments, the inner diameter of the temperature-sensing isolation tube 362 is, for example, 7 mm, suitable for temperature sensors with a temperature-sensing probe 3631 diameter of 6 mm. The smaller the gap between the temperature-sensing probe 3631 and the inner diameter of the temperature-sensing isolation tube 362, the faster the temperature detection response and the higher the accuracy. In a preferred embodiment, the gap between the temperature-sensing probe 3631 and the inner diameter of the temperature-sensing isolation tube 362 is less than or equal to 1 mm. In practical applications, the inner diameter of the temperature-sensing isolation tube 362 can be adjusted according to the diameter of the adapted temperature-sensing probe 3631, and is not limited here.

[0039] Furthermore, the temperature sensor 363 is detachably connected to the mounting base 361. In this embodiment, the two can be detachably connected by threaded engagement, but snap-fit ​​connection can also be used. This is not limited here. The detachable design allows the temperature sensor 363 to be quickly removed from the mounting base 361 without disassembling the main housing 31, thus improving maintenance efficiency.

[0040] The temperature-sensing isolation tube 362 forms a receiving cavity 3621, which is completely isolated from the liquid storage cavity 311, preventing liquid from the liquid storage cavity 311 from entering the receiving cavity 3621 and contaminating the temperature-sensing component. The temperature-sensing probe 3631 extends into the receiving cavity 3621 after passing through the through hole of the mounting base 361. It does not directly contact the liquid in the liquid storage cavity 311, but instead conducts heat transfer through the temperature-sensing isolation tube 362 after contacting the liquid, thus transferring the temperature to the temperature-sensing probe 3631. This ensures the accuracy of temperature measurement and prevents the temperature sensor 363 from being corroded or contaminated by the liquid.

[0041] In one specific embodiment of this invention, the liquid in the storage chamber 311 comes into contact with the outer wall of the temperature-sensing isolation tube 362. The liquid temperature is conducted through the tube wall to the temperature-sensing probe 3631 in the accommodating chamber 3621. The temperature sensor 363 converts the detected temperature signal into an electrical signal and sends it to the controller 50. The controller 50 adjusts the operating speed of the first delivery control unit 21 and the second delivery control unit 41 based on this data. When the device needs to be cleaned by high-temperature sterilization, the temperature sensor 363 can be removed from the mounting base 361, which can reduce the damage to the electronic components of the temperature sensor caused by the high-temperature and high-pressure environment, extend its service life, and ensure temperature measurement accuracy. When the temperature sensor 363 needs to be replaced, it can be removed from the mounting base 361, which is convenient and improves maintenance convenience.

[0042] The temperature sensing component 36 provided in this embodiment isolates the temperature probe 3631 from the liquid through the temperature isolation tube 362, avoiding the problem of direct contact temperature measurement that may lead to contamination of the liquid or corrosion of the probe. The detachable design of the mounting base 361 and the temperature sensor 363 improves the convenience of maintenance. Together with the high-precision temperature sensor 363, it provides reliable data support for the speed regulation of the controller 50, further ensuring the filling accuracy.

[0043] Refer to Figure 4The temperature-sensing isolation tube 362 includes a tube wall 3622 and a bottom wall 3623. The tube wall 3622 and the bottom wall 3623 cooperate to form a receiving cavity 3621, ensuring that the temperature-sensing probe 3631 is isolated from the liquid while achieving efficient heat transfer. Specifically, the tube wall 3622 is a tubular structure, which can be made of, for example, 316L steel. The tube wall 3622 has a first end 3624 and a second end 3625. The first end 3624 is an open end, which is fixedly connected to the mounting base 361. The connection method can be, for example, welding seal or sealing ring compression seal, to ensure that there is no liquid leakage at the connection. The second end 3625 passes through the temperature-sensing mounting port 318 and extends into the liquid storage cavity 311. The extension length can be flexibly set according to the height of the main housing 31 and the set liquid level range of the liquid storage cavity 311, ensuring that the bottom wall 3623 and part of the tube wall 3622 can stably contact the liquid to transfer temperature. Specifically, the bottom wall 3623 can be a sheet structure, made of the same material as the tube wall 3622 (such as 316L stainless steel), and can be sealed to the second end 3625 by welding to form the closed end of the temperature measuring isolation tube 362, ensuring that there are no gaps at the connection between the bottom wall 3623 and the tube wall 3622, and preventing the liquid in the liquid storage chamber 311 from seeping into the receiving chamber 3621.

[0044] Specifically, the first end 3624 is provided with a connecting through hole 3626. The temperature probe 3631 passes through the through hole of the mounting base 361 and the connecting through hole 3626 in sequence, and then extends into the receiving cavity 3621. Specifically, the liquid in the liquid storage cavity 311 is in full contact with the tube wall 3622 and the bottom wall 3623. The liquid temperature is transferred to the temperature probe 3631 in the receiving cavity 3621 through the tube wall 3622 and the bottom wall 3623. Since the receiving cavity 3621 is completely isolated from the liquid storage cavity 311, the risk of liquid contamination of the probe or probe corrosion of the liquid is avoided. Therefore, the temperature measuring isolation tube 362 structure provided in this embodiment, through the sealing cooperation of the tube wall 3622 and the bottom wall 3623, ensures the isolation and sealing of the receiving cavity 3621, and provides a stable assembly and temperature measuring environment for the temperature probe 3631, further improving the reliability and accuracy of temperature detection and adapting to the temperature control requirements of high-precision filling.

[0045] Refer to Figure 4 The mounting base 361 is provided with a vent hole 3611, which is connected to the accommodating cavity 3621 through a connecting through hole 3626. Figure 4In the diagram, D1 represents the inner diameter of the vent 3611, which is, for example, 1 mm. In practical applications, the inner diameter of the vent 3611 can be adjusted according to the specific structure of the device, and is not limited here. By setting the vent 3611, the accommodating cavity 3621 can be connected to the outside atmosphere to balance the internal and external air pressures, avoiding temperature measurement distortion caused by negative or positive pressure generated in the accommodating cavity 3621 due to temperature changes. At the same time, it can effectively reduce the "dead space" effect in the accommodating cavity 3621, suppress the phenomenon of stagnant air convection in the cavity, and thus improve the thermal response speed of temperature measurement.

[0046] It should be noted that, to adapt to the usage requirements of different scenarios, the temperature sensing component 36 can also adopt other optional solutions: In some embodiments, the temperature sensing component 36 is, for example, a non-contact temperature sensor, such as an infrared temperature sensor, which can be fixed on the outside of the main housing 31 at the position corresponding to the liquid storage cavity 311, and obtains temperature data by detecting the infrared radiation energy of the liquid. In some embodiments, the temperature sensing component 36 is, for example, a contact temperature sensor, such as a thermocouple sensor, whose temperature measuring part is in direct or indirect contact with the liquid in the liquid storage cavity 311 to obtain temperature signals, which has the advantages of high temperature measurement accuracy and strong data stability, and can provide reliable data support for subsequent speed control. The above optional solutions are only alternative solutions to implement the temperature sensing component 36 provided by this utility model, and can be flexibly selected and adjusted according to actual working conditions (such as drug characteristics, sealing requirements, accuracy requirements, etc.), and are not limited here.

[0047] The liquid level sensing component 35 provided in this embodiment is, for example, a photoelectric through-beam sensor. It adopts a non-contact through-beam working principle and realizes liquid level judgment by changing the on / off state of the light beam at the liquid-air interface. This avoids the sensor directly contacting the liquid, facilitates the cleaning and sterilization of the dispensing device 30, effectively reduces hygiene dead corners, and reduces the impact of the cleaning and sterilization process on the lifespan and measurement accuracy of the liquid level sensing component 35.

[0048] Specifically, refer to Figure 2 and Figure 6 The liquid level sensing component 35 includes a first light-transmitting element 32, a second light-transmitting element 33, a liquid level sensor transmitter 351, and a liquid level sensor receiver 352. The first light-transmitting element 32 and the second light-transmitting element 33 are spaced apart along a predetermined horizontal direction and are both fixed on the main housing 31. The first light-transmitting element 32 and the second light-transmitting element 33 can be lenses made of tempered borosilicate glass with a light transmittance of over 92%, ensuring efficient transmission of detection light. At the same time, the first light-transmitting element 32 and the second light-transmitting element 33 have excellent chemical stability and high temperature resistance, with water and acid resistance reaching level 1 and alkali resistance reaching level A2. The short-term temperature resistance can reach 450℃, and it can withstand the cleaning and disinfection processes and corrosive liquid erosion in pharmaceutical and chemical scenarios, meeting the needs of most pharmaceutical and chemical application scenarios.

[0049] Specifically, the liquid level sensor transmitter 351 and the liquid level sensor receiver 352 are respectively fixed to the outside of the main housing 31, and are respectively arranged corresponding to the first light-transmitting element 32 and the second light-transmitting element 33. The transmitting end of the liquid level sensor transmitter 351 is positioned facing the first light-transmitting element 32, and the receiving end of the liquid level sensor receiver 352 is positioned facing the second light-transmitting element 33. The liquid level sensor transmitter 351 can be an infrared light transmitter, and the liquid level sensor receiver 352 can be an infrared light receiver. Both can be fixed to the main housing 31 by a mounting bracket 301. The height of the mounting bracket 301 is finely adjustable to facilitate the calibration of the optical path.

[0050] It should be noted that the installation positions of the first light-transmitting element 32 and the second light-transmitting element 33, and the preset direction of the detection light path, are consistent with the minimum liquid level threshold preset in the system's liquid storage chamber 311. When the liquid level in the liquid storage chamber 311 is lower than this threshold, there is no liquid obstruction in the detection light path, and the light can be transmitted smoothly. The liquid level sensor receiver 352 receives the signal and feeds it back to the controller 50, which then controls the first delivery adjustment control 21 to start replenishing the liquid.

[0051] Refer to Figure 2 The main housing 31 has a first light-transmitting detection port 313 and a second light-transmitting detection port 314 that communicate with the liquid storage chamber 311. The dimensions of the first light-transmitting detection port 313 and the second light-transmitting detection port 314 are adapted to the dimensions of the first light-transmitting element 32 and the second light-transmitting element 33. The liquid dispensing device 30 also includes a light-transmitting element mounting base 37.

[0052] Reference Figure 6 The light-transmitting element mounting base 37 includes a first mounting member 371 and a second mounting member 372, and a third mounting member 373 and a fourth mounting member 374, which are arranged opposite to each other. The first mounting member 371 and the second mounting member 372 are respectively fixed to the inner and outer sides of the main housing 31. The first light-transmitting element 32 is fixedly connected between the first mounting member 371 and the second mounting member 372, and is positioned corresponding to the first light-transmitting detection port 313. The third mounting member 373 and the fourth mounting member 374 are respectively fixed to the inner and outer sides of the main housing 31. The second light-transmitting element 33 is fixedly connected between the third mounting member 373 and the fourth mounting member 374, and is positioned corresponding to the second light-transmitting detection port 314.

[0053] Specifically, the light-transmitting component mounting base 37 is, for example, a lens end cap structure, consisting of a lower lens flange, a sealing gasket, an upper lens flange, and fastening screws. The first mounting component 371 and the third mounting component 373 correspond to the lower lens flange, and the second mounting component 372 and the fourth mounting component 374 correspond to the upper lens flange, adapting to the clamping and fixing requirements of the light-transmitting component. The lower lens flange, the upper lens flange, and the fastening screws are all made of 316L material, with a mirror-polished surface to Ra0.4μm, possessing strong corrosion resistance and suitable for cleaning, disinfection, and corrosive environments in pharmaceutical and chemical settings. The dimensions of the first light-transmitting detection port 313 and the second light-transmitting detection port 314 are precisely matched to the dimensions of the first light-transmitting component 32 and the second light-transmitting component 33, ensuring that the central axis of the first light-transmitting component 32 and the second light-transmitting component 33 is precisely aligned with the detection optical path, avoiding detection errors caused by optical path misalignment.

[0054] Refer to Figure 6 The liquid separation device 30 also includes a first sealing element 381, a second sealing element 382, ​​a third sealing element 383, and a fourth sealing element 384. The first sealing element 381 is connected between the first light-transmitting element 32 and the first mounting element 371; the second sealing element 382 is connected between the first light-transmitting element 32 and the second mounting element 372; the third sealing element 383 is connected between the second light-transmitting element 33 and the third mounting element 373; and the fourth sealing element 384 is connected between the second light-transmitting element 33 and the fourth mounting element 374.

[0055] The first sealing element 381, the second sealing element 382, ​​the third sealing element 383, and the fourth sealing element 384 are made of PTFE (Polytetrafluoroethylene), a material that combines excellent sealing performance, high temperature resistance, and corrosion resistance. This material is suitable for high-temperature cleaning and disinfection processes in pharmaceutical and chemical environments and is resistant to the erosion of various acidic and alkaline solutions. The first sealing element 381, the second sealing element 382, ​​the third sealing element 383, and the fourth sealing element 384 can be designed as a ring structure, forming a flexible buffer layer between the first light-transmitting element 32, the second light-transmitting element 33 and the first mounting element 371, the second mounting element 372, the third mounting element 373, and the fourth mounting element 374. This prevents direct contact between the glass and metal materials, avoiding friction or compression, and thus preventing scratches, cracks, or other damage to the first light-transmitting element 32 and the second light-transmitting element 33. This ensures stable light transmission performance required for the detection optical path and guarantees the continuous and reliable operation of the filling and dispensing system 1.

[0056] It should be noted that, to adapt to the usage requirements of different scenarios, the liquid level sensing component 35 can also adopt other optional solutions: In some embodiments, the liquid level sensing component 35 is, for example, an ultrasonic liquid level sensor, which is generally set on the outside of the main housing 31. The ultrasonic sensor calculates the liquid level height by detecting the wave propagation time. The specific installation layout can be flexibly set according to the housing structure and is not limited here. In some embodiments, the liquid level sensing component 35 is, for example, a contact sensor, such as a built-in water level sensor or a capacitive liquid level sensor, etc. Its detection part can directly extend into the liquid storage cavity 311 to contact the liquid and obtain the liquid level signal. It has the characteristics of stable detection accuracy and is suitable for scenarios with high requirements for detection response speed. The above optional solutions are only alternative solutions to implement the liquid level sensing component 35 provided by this utility model. The specific solution can be flexibly selected and adjusted according to the actual working conditions (such as the characteristics of the liquid, sealing requirements, accuracy requirements, etc.) and is not limited here.

[0057] Furthermore, the level sensing component 35 and the temperature sensing component 36 are staggered. The detection optical path of the level sensing component 35 passes through the main housing 31 along a preset horizontal direction, while the temperature sensing isolation tube 362 of the temperature sensing component 36 extends into the liquid storage chamber 311. The staggered arrangement of the level sensing component 35 and the temperature sensing component 36 means that their installation positions on the main housing 31 do not overlap and they avoid each other in space. This ensures that the detection optical path of the level sensing component 35 is not blocked by the temperature sensing component 36, and that the structure of the temperature sensing component 36 does not interfere with the light transmission for level detection. This ensures the reliability of the temperature and level detection data and provides reliable data support for the coordinated control of replenishment speed and filling speed.

[0058] In this embodiment, by integrating the liquid level sensing component 35 and the temperature sensing component 36 into the liquid distribution device 30, it is possible to achieve non-contact liquid level detection in the liquid storage chamber 311 using the liquid level sensing component 35, and to achieve temperature detection isolated from the liquid using the temperature sensing component 36. Unlike traditional technologies, it is not necessary to disperse the temperature control structure and liquid level detection components on multiple devices such as buffer tanks and liquid distribution devices, thereby avoiding the problem of increased overall equipment size caused by the dispersed layout of multiple devices.

[0059] Refer to Figure 2 The liquid distribution device 30 also includes a heat insulation component 39, which is arranged around the outer peripheral wall of the main housing 31 and fixedly connected to the main housing 31. Specifically, the heat insulation component 39 can adopt a jacket structure, which is welded and fixed to the outer peripheral wall of the main housing 31. The jacket is filled with high-efficiency heat insulation material, such as aluminum silicate cotton or polyurethane foam. The thickness of the heat insulation material and the heat insulation component 39 can be set according to the actual working conditions and is not limited here. The heat insulation component 39 is used to block the heat exchange between the main housing 31 and the external environment, and to prevent the liquid in the liquid storage chamber 311 from having a temperature difference due to the fluctuation of the ambient temperature.

[0060] Traditional liquid filling systems often suffer from a lack of insulation or uneven insulation, leading to localized temperature differences in the liquid within the storage chamber 311. This alters the liquid's flowability and viscosity, causing deviations in metering accuracy between different filling batches and affecting filling consistency. In this embodiment, an insulation component 39 is installed around the main housing 31, allowing for control of liquid temperature fluctuations within the storage chamber 311. Simultaneously, the liquid filling system 1 also includes a heating structure (not shown), which can be installed on the dispensing device 10 or the first delivery device 20. When the temperature sensing component 36 detects that the liquid temperature within the main housing 31 is lower than a set value, it sends a signal to the controller 50. The controller 50 then triggers the heating structure to preheat the liquid delivered to the storage chamber 311. The insulation component 39 then maintains a stable temperature, ensuring that the liquid temperature always meets the filling process requirements and further improving filling accuracy.

[0061] Refer to Figure 2 The main housing 31 has a drain port 315 communicating with the liquid storage chamber 311. The drain port 315 can be located on the top of the main housing 31, as shown in the figure. Figure 2 , Figure 5 and Figure 7 The dispensing device 30 also includes an air vent 316, which is located at the air vent 315 and communicates with the liquid storage chamber 311. The air vent 316 may include, for example, an air vent pipe with a filter structure, or a combination of an air vent pipe and a filter assembly. It allows air to pass smoothly in and out while filtering impurities and microorganisms from the air, preventing contamination of the liquid in the liquid storage chamber 311, making it suitable for sanitary applications such as biopharmaceutical manufacturing. The air vent 316 maintains the pressure balance inside and outside the liquid storage chamber 311, preventing siphoning caused by pressure imbalance during filling and further improving filling accuracy.

[0062] Furthermore, it is understood that the foregoing embodiments are merely illustrative examples of this utility model. Provided that the technical features do not conflict, the structure is not contradictory, and the inventive purpose of this utility model is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A filling and dispensing system (1), characterized in that, include: The liquid preparation device (1), the first infusion device (20), the liquid dispensing device (30), and the second infusion device (40) are connected in sequence via pipelines; the filling and preparation system (1) also includes a controller (50); the liquid dispensing device (30) includes: The main housing (31) has a liquid storage chamber (311) inside, and the main housing (31) is provided with an inlet (312) that connects to the first infusion device (20). A liquid level sensing component (35) is disposed on the main housing (31), and the liquid level sensing component (35) is used to detect the liquid level height in the liquid storage chamber (311); A temperature sensing component (36) is disposed on the main housing (31); The first infusion device (20) includes a first delivery control unit (21), the second infusion device (40) includes a second delivery control unit (41), and the controller (50) is electrically connected to the first delivery control unit (21), the second delivery control unit (41), the liquid level sensing component (35), and the temperature sensing component (36), respectively. The temperature sensing component (36) is used to detect the temperature of the liquid and send temperature data to the controller (50) so that the controller (50) controls the first delivery control (21) to adjust the replenishment speed and controls the second delivery control (41) to adjust the filling speed.

2. The filling and dispensing system (1) according to claim 1, characterized in that, The main housing (31) has a temperature measurement mounting port (318); the temperature sensing component (36) includes: Temperature sensor (363) with temperature probe (3631); Mounting base (361) is fixed to the temperature measuring mounting port (318), and the temperature sensor (363) is detachably connected to the mounting base (361). A temperature measuring isolation tube (362) is fixedly connected to the mounting base (361) at one end, and the other end passes through the temperature measuring mounting port (318) and extends into the liquid storage chamber (311); The temperature-measuring isolation tube (362) has a accommodating cavity (3621) which is isolated from the liquid storage cavity (311). The temperature-measuring probe (3631) is located in the accommodating cavity (3621). The temperature-measuring isolation tube (362) is used to contact the liquid and transfer the temperature of the liquid to the temperature-measuring probe (3631).

3. The filling and dispensing system (1) according to claim 2, characterized in that, The temperature measuring isolation tube (362) includes a tube wall (3622) and a bottom wall (3623). The tube wall (3622) has a first end (3624) and a second end (3625) opposite to each other. The first end (3624) is fixedly connected to the mounting base (361). The second end (3625) passes through the temperature measuring mounting port (318) and extends into the liquid storage cavity (311). The bottom wall (3623) is sealed to the second end (3625). The first end (3624) is provided with a connecting through hole (3626). The temperature measuring probe (3631) passes through the connecting through hole (3626) and extends into the receiving cavity (3621).

4. The filling and dispensing system (1) according to claim 3, characterized in that, The mounting base (361) is provided with a vent hole (3611), and the vent hole (3611) is connected to the accommodating cavity (3621) through the connecting through hole (3626).

5. The filling and dispensing system (1) according to claim 1, characterized in that, The liquid level sensing component (35) includes: The first light-transmitting element (32) and the second light-transmitting element (33) are distributed at intervals along a preset direction and are both fixed on the main housing (31); A liquid level sensor transmitter (351) and a liquid level sensor receiver (352) are provided. The liquid level sensor transmitter (351) is fixed to the outside of the main housing (31) and is disposed corresponding to the first light-transmitting element (32). The liquid level sensor receiver (352) is fixed to the outside of the main housing (31) and is disposed corresponding to the second light-transmitting element (33). The liquid level sensor transmitter (351) emits detection light along the preset direction and passes sequentially through the first light-transmitting element (32), the liquid storage cavity (311), the second light-transmitting element (33) to the liquid level sensor receiver (352) to form a detection light path.

6. The filling and dispensing system (1) according to claim 5, characterized in that, The main housing (31) is provided with a first light-transmitting detection port (313) and a second light-transmitting detection port (314) communicating with the liquid storage chamber (311); the liquid dispensing device (30) further includes a light-transmitting element mounting base (37), which includes: The first mounting component (371) and the second mounting component (372) are respectively fixed to the inner and outer sides of the main housing (31); the first light-transmitting component (32) is fixedly connected between the first mounting component (371) and the second mounting component (372), and the first light-transmitting component (32) is set corresponding to the first light-transmitting detection port (313); The third mounting component (373) and the fourth mounting component (374) are respectively fixed to the inner and outer sides of the main housing (31); the second light-transmitting component (33) is fixedly connected between the third mounting component (373) and the fourth mounting component (374), and the second light-transmitting component (33) is set corresponding to the second light-transmitting detection port (314).

7. The filling and dispensing system (1) according to claim 6, characterized in that, The liquid separation device (30) further includes: The first sealing element (381) is connected between the first light-transmitting element (32) and the first mounting element (371); The second sealing element (382) is connected between the first light-transmitting element (32) and the second mounting element (372); The third sealing element (383) is connected between the second light-transmitting element (33) and the third mounting element (373); The fourth sealing element (384) is connected between the second light-transmitting element (33) and the fourth mounting element (374).

8. The filling and dispensing system (1) according to any one of claims 1-7, characterized in that, The liquid level sensing component (35) and the temperature sensing component (36) are misaligned.

9. The filling and dispensing system (1) according to any one of claims 1-7, characterized in that, The liquid separation device (30) also includes a heat insulation component (39), which is arranged around the outer peripheral wall of the main housing (31) and fixedly connected to the main housing (31).

10. The filling and dispensing system (1) according to any one of claims 1-7, characterized in that, The main housing (31) has an air vent (315) that communicates with the liquid storage chamber (311). The liquid distribution device (30) also includes an air vent breather (316), which is located at the air vent (315) and communicates with the liquid storage chamber (311).

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