Intelligent filling tank and filling method
The design of the intelligent dosing tank enables precise metering and flexible adjustment of chemicals in oil and gas fields, solving the problems of high labor costs, uneven dosing effects, and difficult equipment maintenance in existing dosing systems, and meeting the usage needs under different working conditions.
Patent Information
- Application Number
- CN202511167311.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-01-09
AI Technical Summary
Existing chemical dosing systems in oil and gas fields suffer from problems such as high labor costs, uneven dosing effects, difficult equipment maintenance, poor flexibility, high equipment costs, and difficulty in meeting the needs of different operating conditions.
An intelligent filling tank was designed, comprising a metering pump, a mixing pipeline, a flow control mechanism, and a filling mechanism. By switching between continuous automatic filling and cyclic manual filling, combined with the medium inflow control of the flow control mechanism, the tank achieves precise metering and flexible adjustment of the reagents, adapting to different working conditions.
It achieves uniform distribution of the agent in the pipeline, meets the requirements of precise control under multiple working conditions, reduces labor costs and equipment maintenance difficulty, and improves the flexibility of dosing and the adaptability of the equipment.
Smart Images
Figure CN121296902A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of natural gas pipeline refueling technology, specifically to an intelligent refueling tank and refueling method. Background Technology
[0002] In the field of oil, natural gas and other energy extraction and transportation, ensuring the safe and stable operation of pipeline systems is of paramount importance. Among them, adding various functional chemical agents, such as corrosion inhibitors, bactericides and scale inhibitors, into the pipelines is a common means to prevent pipeline corrosion and ensure smooth media transmission. Currently, most oilfields and gas fields face numerous challenges in the chemical dosing process. In terms of dosing methods, some oilfields still rely on manual, periodic on-site dosing of chemicals at the wells to achieve one-time dosing of dewaxing agents, corrosion inhibitors, etc. This manual dosing method not only imposes extremely high labor intensity on workers and keeps labor costs high, but also results in low dosing frequency, leading to uneven distribution of chemicals in the pipelines and an inability to continuously and effectively exert their effects. For example, in some large oilfields, due to the wide distribution of well sites, it is difficult for manual dosing to frequently and evenly cover every well, making it difficult to effectively control pipeline corrosion problems in some wells. Some oilfields have tried using automatic chemical dosing devices at the wellhead, powered by the up-and-down movement of the wellhead pumping unit's polished rod. While this can achieve automatic chemical dosing, its structure is extremely complex and maintenance is very difficult. If the device malfunctions, the time and cost of repair are very high, seriously affecting the continuity and stability of chemical dosing. Some oilfields also use the pressure of high water-cut wells as a power source, using a chemical ejector to extract the chemical and mix it with the high-pressure water in the high water-cut well before adding it to the annulus. However, this method is not very adaptable, and it is difficult to guarantee a stable and accurate chemical dosing effect in well sites with different pressure conditions and media characteristics. In gas fields, especially in mountainous and hilly areas where land is scarce and well site construction costs are high, multiple gas wells are usually drilled in the same well site. To ensure the normal production of these gas wells, functional chemical agents that are liquid at normal temperature and pressure need to be added to multiple wells simultaneously. For example, foaming agents are continuously added to the annulus of the gas well to facilitate drainage and gas production, and defoamers are continuously added to the surface pipeline at the gas well outlet to facilitate defoaming and gas-liquid separation. However, currently, each well and each surface pipeline often uses a separate metering pump to add the corresponding agent, resulting in huge equipment investment costs and making it difficult to achieve precise metering, adjustment, and control. Taking a certain gas field as an example, each gas well needs to be equipped with a metering pump to add foaming agents, and each well outlet surface pipeline also needs to be equipped with a separate metering pump to add defoamers. Not only are there a large number of devices, occupying a lot of space, but in actual operation, it is difficult to adjust the chemical flow rate in real time and accurately according to the gas well production situation, which cannot meet the precise requirements of gas well production for chemical addition. In addition, existing dosing systems lack sufficient flexibility when facing different operating conditions. For example, in some special cases, it may be necessary to switch from continuous automatic dosing to manual dosing, or to adjust the dosing method and rate in real time according to parameters such as the flow rate and pressure of the medium in the pipeline. However, existing devices are difficult to achieve such flexible switching and precise control under multiple operating conditions. In summary, existing chemical dosing systems and methods have many shortcomings in terms of accuracy, efficiency, flexibility, equipment cost, and maintenance difficulty. There is an urgent need for a new type of chemical dosing device that can effectively solve the problems of metering, adjustment, and control in oil and gas well and pipeline chemical dosing, meet the needs of different operating conditions, and has the advantages of energy saving, safety and reliability, wide application, and ease of promotion. Summary of the Invention
[0003] The purpose of this invention is to provide an intelligent dosing tank and dosing method to solve the problems mentioned in the background art, which are that existing dosing methods have many defects in terms of labor costs, dosing effect, equipment maintenance, cost control and flexibility, and cannot meet the needs of oil and gas field pipeline systems for accurate, stable, efficient and flexible dosing to meet different working conditions.
[0004] To achieve the above objectives, the present invention provides the following technical solution: an intelligent filling tank, comprising a first mounting column, a mixing pipe provided on one side of the first mounting column, and a control box provided on the other side of the first mounting column, wherein the control box and the mixing pipe are both fixedly installed to the first mounting column by clamps, a metering pump is fixedly installed inside the control box, a probe is fixedly installed on the inner surface of the mixing pipe, an injection pipe is fixedly connected to one end of the metering pump, and one end of the injection pipe penetrates the outer surface of the mixing pipe, and a first solenoid valve is fixedly installed on the outer surface of the middle section of the injection pipe, a suction pump is fixedly installed on the outer surface of the first mounting column, and a suction pipe is connected to one end of the suction pump and one end of the metering pump, and a second mounting column is provided on one side of the control box, and a filling mechanism is provided at the upper end of the second mounting column, which meets the usage requirements of multiple working conditions by switching between continuous automatic filling and cyclic manual filling; The filling mechanism includes: a storage tank, which is rotatably mounted on the upper end of a second mounting column, and has a storage cavity inside the storage tank. A piston plate is installed inside the storage cavity, and a contact switch is fixedly installed on the inner surface of the storage cavity above the piston plate. A connecting groove is opened inside the side surface of the storage cavity, and a guide plate is fixedly installed on the inner surface of the upper end of the storage cavity. A quick-opening blind plate is installed on the upper end of the storage tank. A connector is rotatably connected to the center of the upper end face of the storage tank. One end of the metering pump is fixedly connected to an inlet pipe, and one end of the inlet pipe is fixedly connected to a sealing ring. A second solenoid valve is fixedly installed in the middle section of the inlet pipe. One end of a diverter pipe is fixedly connected to the lower end of the second solenoid valve, and the other end of the diverter pipe passes through the upper end face of the second mounting column and communicates with the lower end of the connector. A switching motor is fixedly installed on the outer surface of the upper end of the second mounting column, and a switching gear is fixedly connected to one end of the output shaft of the switching motor. A switching ring is fixedly installed on the lower surface of the storage tank. The mixing pipe is equipped with a flow control mechanism, which allows the medium to enter the mixing pipe in a suitable manner and at a suitable rate by switching the medium inflow control mechanism. The flow control mechanism includes: a flow-dividing cavity, which is opened inside the side surface of the mixing pipe, and a rotating impeller is installed on the inner side surface of the mixing pipe. A connecting hole is opened on the inner side surface of the mixing pipe. One end of the impeller's shaft passes through the side surface of the mixing pipe, and a transmission gear is fixedly connected to one end of the impeller's shaft. A rotating transmission gear ring is installed inside the side surface of the mixing pipe outside the transmission gear. A rotating connecting ring is installed on the outer surface of the transmission gear ring, and an electric push rod is fixedly installed inside the side surface of the mixing pipe opposite to the connecting ring. An active motor is fixedly installed inside the side surface of the mixing pipe, and an active gear is fixedly connected to one end of the output shaft of the active motor.
[0005] Preferably, the piston plate and the storage cavity are connected by sliding friction, and a block-shaped protrusion is fixedly provided on the inner surface of the storage cavity below the piston plate.
[0006] Using the above technical solution, the piston plate is connected to the storage cavity by sliding friction, and can move up and down precisely according to the change of the amount of medicine injected, so as to reflect the remaining amount of medicine in the storage cavity in real time. The block protrusion on the inner side of the storage cavity below the piston plate can limit the lowest position of the piston plate, preventing it from moving down too much and compressing the effective storage space of the medicine. At the same time, it ensures that when the piston plate moves up to the preset position, it can accurately trigger the contact switch, realizing the automatic detection and feedback of the full state of the medicine.
[0007] Preferably, the connecting groove is C-shaped, and the upper end of the connecting groove is located above the guide plate. The adjacent guide plates are staggered vertically, and there is a gap between one end of the two adjacent guide plates and the inner surface of the storage cavity. The ends of the two guide plates with gaps to the inner surface of the storage cavity are designed to face each other toward the center of the storage cavity.
[0008] Using the above technical solution, the C-shaped connecting groove design provides a smooth flow channel for the medicine in the storage cavity. Its upper end is located above the guide plate, which can efficiently receive the medicine guided by the guide plate. The adjacent guide plates are designed to be staggered vertically and have gaps facing each other, which can guide the manually injected medicine and make the medicine flow accurately to the connecting groove, effectively avoiding the medicine residue at the upper end of the storage cavity and ensuring that the medicine can completely enter the effective storage area at the lower end of the storage cavity when manually added.
[0009] Preferably, the inner surface of the sealing ring is in contact with the outer surface of the storage tank, and the sealing ring and the storage tank are concentrically arranged. The sealing ring is connected to one end of the liquid inlet pipe. The storage tank has holes evenly distributed on the lower outer surface of the sealing ring, and the holes on the lower outer surface of the storage tank are connected to the storage cavity.
[0010] By adopting the above technical solution, the concentric setting of the sealing ring and the storage tank and the fit of the inner surface ensure the sealing of the connection between the two, which can effectively prevent the leakage of the agent during the transmission process. The sealing ring is connected to the liquid inlet pipe, and together with the evenly opened holes on the outer side of the lower end of the storage tank, the agent manually added to the storage cavity can smoothly enter the liquid inlet pipe through the holes and the sealing ring, providing a stable agent transmission path for the cyclic manual filling mode.
[0011] Preferably, the lower surface of the switching ring is provided with toothed blocks at equal angles, and the switching ring is connected to the switching gear through the toothed blocks, and the switching ring and the storage tank are concentrically arranged.
[0012] By adopting the above technical solution, the concentric setting of the switching ring and the storage tank ensures the stability of the storage tank during rotation. The meshing connection between the toothed block on the lower surface of the switching ring and the switching gear enables the power of the switching motor to be accurately transmitted to the storage tank, driving the storage tank to rotate smoothly, thereby realizing the rapid switching of different storage chambers and ensuring the reliability and accuracy of switching between continuous automatic filling and cyclic manual filling modes.
[0013] Preferably, the blades of the impeller are designed to be inclined, and the outer surface of the blades of the impeller is in contact with the inner surface of the mixing pipe. The connecting hole is set directly opposite the impeller, and one end of the connecting hole is in contact with the outer surface of the blades of the impeller.
[0014] The above technical solution employs an inclined design for the impeller blades, which allows them to be efficiently driven to rotate when natural gas flows in the mixing pipe, improving the utilization rate of airflow power. The contact between the outer surface of the blades and the inner surface of the mixing pipe, as well as the alignment of the connecting hole with the impeller, ensure that the reagent in the diversion chamber can accurately enter the impeller blade gap through the connecting hole and be evenly released into the mixing pipe as the impeller rotates, thus ensuring the full mixing of the reagent and natural gas.
[0015] Preferably, the inner surface of the transmission gear ring is uniformly provided with tooth blocks, and the transmission gear ring is meshed with the transmission gear through the tooth blocks. The connecting ring is fixedly connected to one end of the electric push rod, and the driving gear is positioned directly opposite the transmission gear.
[0016] By adopting the above technical solution, the meshing connection between the toothed blocks on the inner side of the transmission gear ring and the transmission gear provides a foundation for the power transmission of the impeller. The fixed connection between the connecting ring and the electric push rod allows the transmission gear ring to move through the extension and retraction of the electric push rod, thereby enabling it to mesh or disengage with the transmission gear and the drive gear, and thus switch the power source of the impeller. The drive gear is set directly opposite the transmission gear, ensuring coaxiality during the power transmission process and improving the stability and accuracy of the flow control mechanism in different modes.
[0017] A filling method for an intelligent filling tank, the filling method comprising the following steps: S1. Equipment initialization and monitoring start-up: Check the tightness of the connections of each component on the first and second mounting columns, start the control box, and power on the metering pump, suction pump and other equipment for self-test. The probe inside the mixing pipeline starts to monitor the humidity, pressure and other parameters of the natural gas in the pipeline in real time and feeds the data back to the control box. S2. Refueling Mode Selection and Switching: S2.1 Continuous Automatic Dispensing Mode: Connect the output end of the external dispenser to the connector at the top of the storage tank, open the second solenoid valve, and the agent enters the metering pump sequentially through the connector, the diversion pipe, the second solenoid valve, and the inlet pipe. The metering pump adjusts the frequency according to the instructions of the control box and injects the agent into the mixing pipe through the injection pipe. The first solenoid valve controls the opening and closing of the injection pipe to ensure that the agent is injected as needed. S2.2, Circulating Manual Addition Mode: Close the second solenoid valve, open the quick-opening blind flange, and manually add the agent into the storage chamber of the storage tank. The agent is guided by the guide plate and flows into the lower end of the storage chamber through the connecting groove, pushing the piston plate to move upward. When the piston plate triggers the contact switch, the control box commands the switching motor to start. Through the meshing transmission of the switching gear and the switching ring, the storage tank is driven to rotate, switching to the next empty storage chamber to continue manual addition. When it is necessary to add agent to the pipeline, open the second solenoid valve. The agent in the storage chamber enters the metering pump through the lower end hole, the sealing ring, and the liquid inlet pipe, and then enters the mixing pipeline through the injection pipe to complete the circulating manual addition. S3. Flow control mode selection and adjustment: Based on the natural gas conditions in the mixed pipeline, the operating mode of the flow control mechanism is switched via the control box. S3.1 Natural Gas Flow Rate Linkage Mode: The electric push rod retracts, and through the connecting ring, it drives the transmission gear ring to disengage from the transmission gear. The natural gas flow in the mixing pipeline drives the impeller of the inclined blades to rotate. The reagent enters the diversion chamber through the injection pipe, and enters the blade gap of the impeller through the connecting hole. It is evenly injected into the mixing pipeline as the impeller rotates, realizing the linkage between the reagent injection rate and the natural gas flow rate. S3.2 Active speed control mode: The electric push rod extends and pushes the connecting ring so that the transmission gear ring meshes with the transmission gear and the drive gear at the same time. The active motor starts and drives the impeller to rotate at the set speed through the drive gear, transmission gear ring and transmission gear. The agent enters the impeller gap through the diversion chamber and connecting hole and is injected with the rotation of the impeller. The metering pump adjusts the total amount of agent to ensure a stable mixing concentration. S3.3, Metering pump independent control mode: The impeller rotates at high speed when operated in active speed control mode. The injection rate of the agent is precisely controlled by adjusting the operating frequency of the metering pump and the opening and closing of the first solenoid valve. It is suitable for scenarios with strict requirements on agent concentration. S4. Monitoring and Dynamic Adjustment: Throughout the filling process, the control box receives real-time monitoring data from the probe and dynamically adjusts the metering pump frequency, solenoid valve status, flow control mode, and impeller speed to ensure uniform and stable injection of the agent. After filling is completed, the metering pump, suction pump, and other equipment are shut down, and the relevant solenoid valves are closed to complete the filling operation.
[0018] Compared with the prior art, the beneficial effects of the present invention are: the intelligent filling tank: 1. By setting the frequency of the metering pump and the opening degree of the first solenoid valve, the amount of agent injected into the injection pipe can be precisely controlled, avoiding the dosage deviation of traditional manual dosing, ensuring that the agent is evenly distributed in the pipeline. When dealing with corrosion problems in natural gas pipelines, the gas humidity can be monitored by probes, and the injection rate of corrosion inhibitor can be dynamically adjusted to keep the inner wall of the pipeline effectively protected at all times. 2. Furthermore, by switching between continuous automatic filling and cyclic manual filling through the filling mechanism, the needs of multiple working conditions can be met. This ensures that in areas with good conditions, long-term continuous operation can be maintained through automatic filling, while in areas where automatic filling is not possible, the medium can be manually injected by simply opening the quick-opening blind flange, thereby meeting the needs of different working conditions. 3. Furthermore, by setting up a flow control mechanism inside the mixing pipeline, the inflow rate of the medium can be controlled in multiple output modes with the cooperation of the metering pump, including control based on the natural gas flow rate, control through impeller active speed control, and control by the metering pump. This enables the intelligent filling tank to achieve precise control under different operating conditions. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram showing the connection between the control box, injection pipe, and first solenoid valve of the present invention. Figure 3 This is a three-dimensional structural diagram of the connection between the control box, metering pump, and injection pipe of the present invention; Figure 4 This is a three-dimensional structural diagram of the connection between the control box, the suction pump, and the suction pipe of the present invention; Figure 5 This is a three-dimensional structural diagram of the connection between the closed loop, the second solenoid valve, and the shunt pipe of the present invention; Figure 6 This is a three-dimensional structural diagram of the cross-sectional view of the connection between the second mounting column and the storage tank in this invention; Figure 7 This is a three-dimensional structural diagram of the cross-sectional view of the connection between the mixing pipe and the injection pipe of the present invention; Figure 8 This is a three-dimensional structural diagram of the connection between the hybrid pipe and the transmission gear ring of the present invention; Figure 9 This is a three-dimensional structural diagram of the connection between the impeller and the transmission gear of the present invention; Figure 10 For the present invention Figure 7 Enlarged structural diagram at point A in the middle.
[0020] In the diagram: 1. First mounting post; 2. Mixing pipe; 3. Control box; 4. Metering pump; 5. Probe; 6. Injection pipe; 7. First solenoid valve; 8. Suction pump; 9. Suction pipe; 10. Second mounting post; 11. Storage tank; 12. Storage cavity; 13. Piston plate; 14. Contact switch; 15. Connecting groove; 16. Guide plate; 17. Quick-opening blind flange; 18. Connector; 19. Inlet pipe; 20. Closing ring; 21. Second solenoid valve; 22. Diverter pipe; 23. Switching motor; 24. Switching gear; 25. Switching ring; 26. Diverter cavity; 27. Impeller; 28. Connecting hole; 29. Transmission gear; 30. Transmission gear ring; 31. Connecting ring; 32. Electric push rod; 33. Drive motor; 34. Drive gear. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.
[0022] Please see Figures 1-10The present invention provides a technical solution: an intelligent filling tank.
[0023] Example 1: This example discloses: a first mounting column 1, a mixing pipe 2 on one side of the first mounting column 1, and a control box 3 on the other side of the first mounting column 1. The control box 3 and the mixing pipe 2 are both fixedly installed to the first mounting column 1 by clamps. A metering pump 4 is fixedly installed inside the control box 3. A probe 5 is fixedly installed on the inner surface of the mixing pipe 2. An injection pipe 6 is fixedly connected to one end of the metering pump 4. One end of the injection pipe 6 penetrates the outer surface of the mixing pipe 2. A first solenoid valve 7 is fixedly installed on the outer surface of the middle section of the injection pipe 6. A suction pump 8 is fixedly installed on the outer surface of the first mounting column 1. A suction pipe 9 is connected to one end of the suction pump 8 and one end of the metering pump 4. The mixing pipeline 2 maintains a stable relative position with the control box 3 through its connection with the first mounting column 1. The metering pump 4 inside the control box 3 is connected to the suction pump 8 through the suction pipe 9. The suction pump 8 draws external agents such as corrosion inhibitors and scale inhibitors to the metering pump 4. The metering pump 4 delivers the agents to the mixing pipeline 2 through the injection pipe 6 according to preset parameters or real-time instructions. The first solenoid valve 7 in the middle section of the injection pipe 6 can quickly control the on / off of the agent delivery. In conjunction with the frequency adjustment of the metering pump 4, the amount of agent added per unit time is precisely controlled, avoiding the dosage deviation of traditional manual dosing. The probe 5 inside the mixing pipeline 2 monitors the humidity, pressure and other parameters of the natural gas in the pipeline in real time and feeds the data back to the control box 3. The control box 3 dynamically adjusts the operating frequency of the metering pump 4 according to the feedback data. For example, when the probe 5 detects an increase in the humidity of the natural gas, the injection rate of the corrosion inhibitor is increased to ensure that the agent is always evenly distributed and plays an effective role.
[0024] Example 2: This example is based on Example 1: A second mounting post 10 is provided on one side of the control box 3, and a filling mechanism is provided at the upper end of the second mounting post 10. The use requirements of multiple working conditions can be met by switching between continuous automatic filling and cyclic manual filling. The filling mechanism includes: a storage tank 11, which is rotatably mounted on the upper end of the second mounting column 10. The storage tank 11 has a storage cavity 12 inside, a piston plate 13 inside the storage cavity 12, and a contact switch 14 fixedly mounted on the inner surface of the storage cavity 12 above the piston plate 13. A connecting groove 15 is formed inside the side surface of the storage cavity 12, and a guide plate 16 is fixedly mounted on the upper inner surface of the storage cavity 12. A quick-opening blind flange 17 is mounted on the upper end of the storage tank 11, and a connector 18 is rotatably connected to the center of the upper end face of the storage tank 11. A metering pump 4 is also included. One end of the liquid inlet pipe 19 is fixedly connected to the liquid inlet pipe 19, and a sealing ring 20 is fixedly connected to one end of the liquid inlet pipe 19. A second solenoid valve 21 is fixedly installed in the middle section of the liquid inlet pipe 19. One end of a diversion pipe 22 is fixedly connected to the lower end of the second solenoid valve 21. The other end of the diversion pipe 22 passes through the upper end face of the second mounting column 10 and is connected to the lower end of the connector 18. A switching motor 23 is fixedly installed on the outer surface of the upper end of the second mounting column 10. A switching gear 24 is fixedly connected to one end of the output shaft of the switching motor 23. A switching ring 25 is fixedly provided on the lower surface of the storage tank 11. The piston plate 13 and the storage cavity 12 are connected by sliding friction, and a block-shaped protrusion is fixedly provided on the inner surface of the storage cavity 12 below the piston plate 13; The connecting groove 15 is C-shaped, and the upper end of the connecting groove 15 is located above the guide plate 16. The adjacent guide plates 16 are staggered vertically, and there is a gap between one end of the two adjacent guide plates 16 and the inner surface of the storage cavity 12. The ends of the two guide plates 16 with gaps to the inner surface of the storage cavity 12 are designed to face each other toward the center of the storage cavity 12. The inner surface of the sealing ring 20 is in contact with the outer surface of the storage tank 11, and the sealing ring 20 and the storage tank 11 are concentrically arranged. The sealing ring 20 is connected to one end of the liquid inlet pipe 19. Holes are evenly opened on the lower outer surface of the storage tank 11 opposite to the sealing ring 20, and the holes on the lower outer surface of the storage tank 11 are connected to the storage cavity 12. The lower surface of the switching ring 25 is provided with toothed blocks at equal angles, and the switching ring 25 is connected to the switching gear 24 through the toothed blocks. The switching ring 25 and the storage tank 11 are concentrically arranged. In continuous automatic dispensing mode, one end of the dispensing machine is connected to the connector 18. The agent is then injected into the metering pump 4 through the connector 18, the diversion pipe 22, the second solenoid valve 21, and the inlet pipe 19 to achieve continuous automatic dispensing without the need for manual addition of the agent. In the manual injection mode, for well sites without automation, the reagent is manually injected directly into the storage chamber 12 through the quick-opening blind flange 17. The guide plate 16 ensures that the manually added reagent can directly enter the lower end of the storage chamber 12 through the connecting groove 15. At this time, the piston plate 13 in the storage chamber 12 slides upward as the amount of reagent injected increases. When the storage chamber 12 is full of reagent, the piston plate 13 moves upward to trigger the contact switch 14. The control box 3 commands the switching motor 23 to drive the switching gear 24 to rotate. Through the switching ring 25, the storage tank 11 rotates on the second mounting column 10 to realize the mechanical switching of the manual mode so that the next storage chamber 12 can receive the reagent injection. After the injection is completed, the second solenoid valve 21 opens so that the liquid inlet pipe 19 is connected to the storage chamber 12 through the sealing ring 20 and the hole on the lower side of the storage tank 11, so that the reagent in the storage chamber 12 can be extracted.
[0025] Example 3: This example discloses, based on Example 1 and Example 2, that the mixing pipe 2 is equipped with a flow control mechanism, which allows the medium to enter the mixing pipe 2 in a suitable manner and at a suitable rate by switching the medium inflow control mechanism; The flow control mechanism includes: a flow splitting chamber 26, which is located inside the side surface of the mixing pipe 2. A rotating impeller 27 is installed on the inner surface of the mixing pipe 2. A connecting hole 28 is provided on the inner surface of the mixing pipe 2. One end of the shaft of the impeller 27 passes through the side surface of the mixing pipe 2. A transmission gear 29 is fixedly connected to one end of the shaft of the impeller 27. A rotating transmission gear ring 30 is installed inside the side surface of the mixing pipe 2 outside the transmission gear 29. A rotating connecting ring 31 is installed on the outer surface of the transmission gear ring 30. An electric push rod 32 is fixedly installed inside the side surface of the mixing pipe 2 opposite to the connecting ring 31. An active motor 33 is fixedly installed inside the side surface of the mixing pipe 2. An active gear 34 is fixedly connected to one end of the output shaft of the active motor 33. The blades of impeller 27 are designed to be inclined, and the outer surface of the blades of impeller 27 is in contact with the inner surface of mixing pipe 2. The connecting hole 28 is set directly opposite to impeller 27, and one end of the connecting hole 28 is in contact with the outer surface of the blades of impeller 27. The inner surface of the transmission gear ring 30 is uniformly provided with tooth blocks, and the transmission gear ring 30 is connected to the transmission gear 29 through the tooth blocks. The connecting ring 31 is fixedly connected to one end of the electric push rod 32, and the driving gear 34 is set directly opposite the transmission gear 29. In the natural gas flow rate linkage mode, the natural gas flow in the mixing pipe 2 drives the impeller 27 with inclined blades to rotate. At this time, the agent injected into the diversion chamber 26 through the injection pipe 6 is continuously injected into the gap between the blades of the impeller 27 through the connecting hole 28 and released into the interior of the mixing pipe 2 as the impeller 27 rotates, so as to achieve the purpose of controlling the agent injection speed by the natural gas flow rate. At this time, the electric push rod 32 drives the transmission gear ring 30 to slide out of the mesh with the transmission gear 29 through the connecting ring 31 to ensure that the impeller 27 can rotate freely. In active speed control mode, electric push rod 32 pushes connecting ring 31, so that transmission gear ring 30 meshes with transmission gear 29 and drive gear 34 at the same time. Active motor 33 drives drive gear 34 to rotate, which in turn drives transmission gear ring 30 and transmission gear 29 to rotate, thereby directly driving impeller 27 to rotate. By setting the speed of active motor 33, the rotation speed of impeller 27 can be precisely controlled, thereby adjusting the medium mixing speed. This mode is suitable for working conditions that require forced stable flow rate. In the independent control mode of metering pump 4, electric push rod 32 pushes connecting ring 31, causing transmission gear ring 30 to mesh with transmission gear 29 and drive gear 34 simultaneously. Drive motor 33 drives drive gear 34 to rotate, which in turn drives transmission gear ring 30 and transmission gear 29 to rotate, directly driving impeller 27 to rotate. By setting the speed of drive motor 33, the dosage of medicine discharged by impeller 27 per unit time is much greater than the maximum output dosage of metering pump 4 per unit time. This achieves independent control of the drug injection rate by adjusting the frequency of metering pump 4 and opening / closing the first solenoid valve 7. This is suitable for scenarios with strict requirements on drug concentration.
[0026] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and do not limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the protection scope of the present invention.
Claims
1. An intelligent filling tank, comprising a first mounting column (1), a mixing pipe (2) provided on one side of the first mounting column (1), and a control box (3) provided on the other side of the first mounting column (1), wherein the control box (3) and the mixing pipe (2) are both fixedly installed to the first mounting column (1) by clamps, a metering pump (4) is fixedly installed inside the control box (3), and a probe (5) is fixedly installed on the inner surface of the mixing pipe (2), characterized in that: One end of the metering pump (4) is fixedly connected to an injection pipe (6), and one end of the injection pipe (6) penetrates the outer surface of the mixing pipe (2). A first solenoid valve (7) is fixedly installed on the outer surface of the middle section of the injection pipe (6). A suction pump (8) is fixedly installed on the outer surface of the first mounting column (1), and one end of the suction pump (8) is connected to one end of the metering pump (4) with a suction pipe (9). A second mounting column (10) is provided on one side of the control box (3), and a filling mechanism is provided at the upper end of the second mounting column (10). The use requirements of multiple working conditions are met by switching between continuous automatic filling and cyclic manual filling.
2. The intelligent filling tank according to claim 1, characterized in that: The filling mechanism includes: a storage tank (11), which is rotatably mounted on the upper end of the second mounting column (10), and a storage cavity (12) is provided inside the storage tank (11). A piston plate (13) is provided inside the storage cavity (12), and a contact switch (14) is fixedly installed on the inner surface of the storage cavity (12) above the piston plate (13). A connecting groove (15) is provided inside the side surface of the storage cavity (12), and a guide plate (16) is fixedly installed on the upper inner surface of the storage cavity (12). A quick-opening blind plate (17) is installed on the upper end of the storage tank (11), and a connector (18) is rotatably connected to the center of the upper end face of the storage tank (11). One end of the metering pump (4) is fixedly connected to an inlet pipe (19), and one end of the inlet pipe (19) is fixedly connected to a sealing ring (20). A second solenoid valve (21) is fixedly installed in the middle section of the inlet pipe (19). One end of a diverter pipe (22) is fixedly connected to the lower end of the second solenoid valve (21), and the other end of the diverter pipe (22) passes through the upper end face of the second mounting post (10) and is connected to the lower end of the connector (18). A switching motor (23) is fixedly installed on the outer surface of the upper end of the second mounting post (10), and a switching gear (24) is fixedly connected to one end of the output shaft of the switching motor (23). A switching ring (25) is fixedly provided on the lower surface of the storage tank (11).
3. The intelligent filling tank according to claim 1, characterized in that: The mixing pipe (2) is equipped with a flow control mechanism. By switching the medium inflow control mechanism, the medium can enter the mixing pipe (2) in a suitable manner and at a suitable rate. The flow control mechanism includes: a flow splitting chamber (26), which is located inside the side surface of the mixing pipe (2), and a rotating impeller (27) is installed on the inner surface of the mixing pipe (2). A connecting hole (28) is provided on the inner surface of the mixing pipe (2). One end of the shaft of the impeller (27) passes through the side surface of the mixing pipe (2), and a transmission gear (29) is fixedly connected to one end of the shaft of the impeller (27). A rotating transmission gear ring (30) is installed inside the side surface of the mixing pipe (2) outside the transmission gear (29). A rotating connecting ring (31) is installed on the outer surface of the transmission gear ring (30), and an electric push rod (32) is fixedly installed inside the side surface of the mixing pipe (2) opposite to the connecting ring (31). An active motor (33) is fixedly installed inside the side surface of the mixing pipe (2), and an active gear (34) is fixedly connected to one end of the output shaft of the active motor (33).
4. The intelligent filling tank according to claim 2, characterized in that: The piston plate (13) and the storage cavity (12) are connected by sliding friction, and a block-shaped protrusion is fixedly provided on the inner surface of the storage cavity (12) below the piston plate (13).
5. The intelligent filling tank according to claim 2, characterized in that: The connecting groove (15) is C-shaped, and the upper end of the connecting groove (15) is located above the guide plate (16). The adjacent guide plates (16) are staggered vertically, and there is a gap between one end of the two adjacent guide plates (16) and the inner surface of the storage cavity (12). The ends of the two guide plates (16) with the gaps between them and the inner surface of the storage cavity (12) are designed to face each other toward the center of the storage cavity (12).
6. The intelligent filling tank according to claim 2, characterized in that: The inner surface of the sealing ring (20) is in contact with the outer surface of the storage tank (11), and the sealing ring (20) and the storage tank (11) are concentrically arranged. The sealing ring (20) is connected to one end of the liquid inlet pipe (19). The storage tank (11) has holes evenly opened on the lower outer surface of the sealing ring (20), and the holes on the lower outer surface of the storage tank (11) are connected to the storage cavity (12).
7. The intelligent filling tank according to claim 2, characterized in that: The lower surface of the switching ring (25) is provided with toothed blocks at equal angles, and the switching ring (25) is connected to the switching gear (24) through the toothed blocks. The switching ring (25) and the storage tank (11) are concentrically arranged.
8. The intelligent filling tank according to claim 3, characterized in that: The blades of the impeller (27) are designed to be inclined, and the outer surface of the blades of the impeller (27) is in contact with the inner surface of the mixing pipe (2). The connecting hole (28) is set directly opposite the impeller (27), and one end of the connecting hole (28) is in contact with the outer surface of the blades of the impeller (27).
9. The intelligent filling tank according to claim 3, characterized in that: The inner surface of the transmission gear ring (30) is uniformly provided with tooth blocks, and the transmission gear ring (30) is meshed with the transmission gear (29) through the tooth blocks. The connecting ring (31) is fixedly connected to one end of the electric push rod (32), and the driving gear (34) is positioned opposite the transmission gear (29).
10. A filling method for an intelligent filling tank according to any one of claims 1-9, characterized in that: The refueling method includes the following steps: S1. Equipment initialization and monitoring start-up: Check the tightness of the connection of each component on the first mounting column (1) and the second mounting column (10), start the control box (3), and power on the metering pump (4), suction pump (8) and other equipment for self-test. The probe (5) inside the mixing pipeline (2) starts to monitor the humidity, pressure and other parameters of the natural gas in the pipeline in real time and feeds the data back to the control box (3). S2. Refueling Mode Selection and Switching: S2.1 Continuous automatic dispensing mode: Connect the output end of the external dispensing machine to the connector (18) at the top of the storage tank (11), open the second solenoid valve (21), and the agent enters the metering pump (4) sequentially through the connector (18), the diversion pipe (22), the second solenoid valve (21), and the inlet pipe (19). The metering pump (4) adjusts the frequency according to the instructions of the control box (3) and injects the agent into the mixing pipe (2) through the injection pipe (6). The first solenoid valve (7) controls the opening and closing of the injection pipe (6) to ensure that the agent is injected as needed. S2.2, Circular manual filling mode: Close the second solenoid valve (21), open the quick-opening blind plate (17), and manually add the agent into the storage chamber (12) of the storage tank (11). The agent is guided by the guide plate (16) and flows into the lower end of the storage chamber (12) through the connecting groove (15), pushing the piston plate (13) to move upward. When the piston plate (13) triggers the contact switch (14), the control box (3) commands the switching motor (23) to start. Through the meshing transmission of the switching gear (24) and the switching ring (25), the storage tank (11) is driven to rotate and switch to the next empty storage chamber (12) to continue manual filling. When it is necessary to add the agent to the pipeline, open the second solenoid valve (21). The agent in the storage chamber (12) enters the metering pump (4) through the lower end hole, the sealing ring (20), and the liquid inlet pipe (19), and then enters the mixing pipeline (2) through the injection pipe (6) to complete the circular manual filling. S3. Flow control mode selection and adjustment: Based on the natural gas conditions in the mixed pipeline (2), the operating mode of the flow control mechanism is switched through the control box (3): S3.1 Natural gas flow rate linkage mode: The electric push rod (32) retracts and drives the transmission gear ring (30) to disengage from the transmission gear (29) through the connecting ring (31). The natural gas flow in the mixing pipe (2) drives the impeller (27) with inclined blades to rotate. The agent enters the diversion chamber (26) through the injection pipe (6) and enters the blade gap of the impeller (27) through the connecting hole (28). It is evenly injected into the mixing pipe (2) as the impeller (27) rotates, so as to realize the linkage between the agent injection rate and the natural gas flow rate. S3.2 Active speed control mode: The electric push rod (32) extends and pushes the connecting ring (31) so that the transmission gear ring (30) simultaneously meshes with the transmission gear (29) and the active gear (34). The active motor (33) starts and drives the impeller (27) to rotate at the set speed through the active gear (34), the transmission gear ring (30), and the transmission gear (29). The agent enters the gap of the impeller (27) through the diversion chamber (26) and the connecting hole (28) and is injected as the impeller (27) rotates. The metering pump (4) adjusts the total amount of agent to ensure a stable mixing concentration. S3.3, Metering pump independent control mode: The impeller (27) is rotated at high speed by operating in active speed control mode. The drug injection rate is precisely controlled by adjusting the operating frequency of the metering pump (4) and the opening and closing of the first solenoid valve (7). It is suitable for scenarios with strict requirements on drug concentration. S4. Monitoring and dynamic adjustment: During the entire injection process, the control box (3) receives the monitoring data from the probe (5) in real time and dynamically adjusts the frequency of the metering pump (4), the status of the solenoid valve, the flow control mode and the speed of the impeller (27) to ensure that the agent is injected evenly and stably. After the injection is completed, the metering pump (4), the suction pump (8) and other equipment are turned off, and the relevant solenoid valves are turned off to complete the injection operation.