Integrated fluid suction and injection system

Abstract

The invention discloses an integrated fluid suction and injection system, which belongs to the field of fluid treatment equipment, and comprises an intelligent control unit, a fluid suction and injection unit and a fluid suction and injection unit, and is characterized in that the intelligent control unit is used for collecting sensor data, processing signals and outputting control instructions; the bidirectional conversion pump is connected with the intelligent control unit, can be switched between a suction mode and an injection mode, and has a flow and pressure dynamic regulation function; the sensor system comprises a flow sensor, a pressure sensor and a temperature sensor; data are fed back in real time through the sensor, the control unit automatically optimizes working parameters through a self-adaptive algorithm, high-precision flow control is ensured, and intelligent closed-loop control is achieved; based on a fluid dynamic model, pump body operation parameters are adjusted in real time, energy loss is reduced, and overload is avoided; and the maximum / minimum flow and the pressure threshold value are set through an interface, and the system automatically limits parameters in a safe interval, so that misoperation is prevented, and a user can customize range setting.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid handling equipment, and particularly to an integrated fluid aspiration and injection system. Background Art

[0002] As a key device widely used in many fields, the fluid aspiration and injection system mainly functions to achieve fluid extraction and quantitative injection operations. In the medical field, it is commonly used for drug injection, blood extraction, etc.; in laboratories, it is used for experimental operations such as adding chemical reagents and sample collection; in industrial manufacturing, it can be used for quantitative material transportation, product production and processing, etc.

[0003] In the prior art, the fluid aspiration and injection systems generally have the following defects:

[0004] Insufficient precision: relying on manual adjustment or simple mechanical devices, low-flow control is inaccurate. For example, when injecting a small dose of drug in medical treatment, the consistency of each injection dose cannot be guaranteed, which may lead to differences in treatment effects.

[0005] Low intelligence level: lacking intelligent perception and feedback mechanisms, unable to adjust adaptively. When the characteristics of the fluid such as viscosity and resistance change, it cannot automatically adjust the operating parameters to maintain stable flow rate and pressure.

[0006] Slow control response: difficult to meet the high-frequency dynamic requirements in scenarios such as medical treatment and laboratories. In some experiments that require rapid change of fluid flow rate or pressure, the traditional system cannot respond in time, affecting the experimental progress and the accuracy of the results.

[0007] Equipment complexity: multiple components operate independently, with cumbersome operation and high maintenance costs. The coordinated work between different components requires a large amount of manual debugging, and once a component fails, it is difficult to troubleshoot and repair.

[0008] Lack of data monitoring: lacking real-time status monitoring and custom parameter setting functions. Operators cannot understand the operating status of the equipment in real time, nor can they flexibly set working parameters according to actual needs, which limits the application of the equipment in different scenarios.

[0009] The deficiencies of the prior art result in poor system stability and low efficiency, and cannot meet the high-precision and automated requirements of modern industry and medical treatment. Summary of the Invention

[0010] In view of the deficiencies of the prior art, the present invention provides an integrated fluid aspiration and injection system, which solves the problems raised in the above background art.

[0011] Technical solution: To solve the above technical problems, according to one aspect of the present invention, more specifically, an integrated fluid aspiration and injection system, which includes an intelligent control unit, a bidirectional conversion pump, a sensor system, a data processing and display interface, an electric actuator and a valve control system;

[0012] The intelligent control unit is used to collect sensor data, process signals and output control instructions;

[0013] The bidirectional conversion pump is connected to the intelligent control unit, can switch between aspiration and injection modes, and has the function of dynamically adjusting flow rate and pressure;

[0014] The sensor system includes a flow sensor, a pressure sensor and a temperature sensor, and is used to monitor the fluid state in real time and feedback it to the intelligent control unit;

[0015] The data processing and display interface is connected to the intelligent control unit, supports users to set the working parameter range and display real-time operation data;

[0016] The electric actuator and valve control system is connected to the intelligent control unit and is used to control the fluid flow direction and pressure.

[0017] Furthermore, the intelligent control unit is built-in with an adaptive control algorithm, and based on the feedback data of the sensor system, automatically adjusts the rotation speed, stroke of the bidirectional conversion pump and the opening degree of the valve control system.

[0018] Furthermore, the bidirectional conversion pump integrates a kinetic optimization module, which can adjust the working parameters in real time according to the fluid viscosity and flow resistance, so that the pump body efficiency ≥ 90%.

[0019] Furthermore, the data processing and display interface is provided with a maximum / minimum range setting module, and users can set the safety thresholds of flow rate and pressure through this module. When the actual operation parameters exceed the thresholds, the intelligent control unit triggers an alarm and stops working.

[0020] Furthermore, the sensor system and the intelligent control unit form a closed-loop control loop, the data acquisition frequency ≥ 100Hz, and the control response time ≤ 100ms

[0021] Furthermore, the intelligent control unit also has a remote communication module, which supports data interaction and remote control with external devices through a wireless communication protocol, and the wireless communication protocol includes but is not limited to Wi-Fi, Bluetooth, 4G / 5G.

[0022] Furthermore, the pump body of the bidirectional conversion pump is made of corrosion-resistant and wear-resistant materials, which is suitable for transporting corrosive or highly viscous fluids and prolongs the service life of the pump body.

[0023] Furthermore, the electric actuator and the valve control system adopt a redundant design. When the main valve or actuator fails, the standby equipment automatically switches to operation to ensure the uninterrupted operation of the system.

[0024] Furthermore, the maximum / minimum range setting module supports dynamic parameter adjustment. The user can modify the threshold value in real time during operation, and the intelligent control unit synchronously updates the control strategy.

[0025] The beneficial effects of the integrated fluid suction and injection system of the present invention are as follows:

[0026] (1) The present invention feeds back data in real time through sensors, and the control unit automatically optimizes working parameters through an adaptive algorithm to ensure high-precision flow control and achieve intelligent closed-loop control;

[0027] Based on the fluid dynamics model, the operating parameters of the pump body are adjusted in real time to reduce energy loss and avoid overload.

[0028] (2) The present invention sets the maximum / minimum flow rate and pressure thresholds through the interface, and the system automatically limits the parameters within a safe range to prevent misoperation, enabling users to customize the range settings;

[0029] Integrating real-time data display, historical curve analysis and fault diagnosis functions improves the operation convenience and maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The following further describes the present invention in detail with reference to the drawings and specific implementation methods.

[0031] Figure 1 It is a schematic structural diagram of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0032] The present invention will be described in detail below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0033] To make the technical solution of the present invention clearer, the following further describes the present invention in detail with reference to the drawings and specific embodiments.

[0034] Referring to Figure 1 , an integrated fluid suction and injection system includes an intelligent control unit, a bidirectional conversion pump, a sensor system, a data processing and display interface, an electric actuator and a valve control system;

[0035] An intelligent control unit, which is used to collect sensor data, process signals and output control instructions. The intelligent control unit is equipped with a PID algorithm or a fuzzy control algorithm, dynamically adjusts control instructions according to sensor data, and integrates a fault diagnosis module, which identifies faults such as overvoltage, liquid shortage, abnormal flow, etc. based on machine learning algorithms, with an alarm accuracy rate ≥ 95%. At the same time, it has a remote communication module, which supports data interaction and remote control with external devices through wireless communication protocols. The wireless communication protocols include but are not limited to Wi-Fi, Bluetooth, 4G / 5G. The remote communication module supports encrypted data transmission to ensure the security and integrity of data transmission;

[0036] A bidirectional conversion pump, connected to the intelligent control unit, can switch between suction and injection modes, and has the function of dynamically adjusting flow and pressure. The bidirectional conversion pump is driven by a high-precision servo motor, and cooperates with a ball screw or a diaphragm pump head to achieve pulse-free fluid delivery, with a pulse fluctuation ≤ ±0.3%. It integrates a kinetic optimization module, which can adjust working parameters in real time according to fluid viscosity and flow resistance, so that the pump body efficiency ≥ 90%. The pump body is made of corrosion-resistant and wear-resistant materials, and the corrosion-resistant and wear-resistant materials include but are not limited to stainless steel, ceramics, and polytetrafluoroethylene, which is suitable for transporting corrosive or high-viscosity fluids and prolongs the service life of the pump body;

[0037] A sensor system, including a flow sensor, a pressure sensor and a temperature sensor, is used to monitor the fluid state in real time and feedback it to the intelligent control unit. The sensor system is connected to the control unit through a modular interface, supports plug-and-play and parameter calibration, and forms a closed-loop control loop with the intelligent control unit. The data acquisition frequency ≥ 100Hz, and the control response time ≤ 100ms;

[0038] A data processing and display interface, connected to the intelligent control unit, supports users to set the working parameter range and display real-time operation data. The data processing and display interface is provided with a maximum / minimum range setting module. Users can set the safety thresholds of flow and pressure through this module. When the actual operation parameters exceed the thresholds, the intelligent control unit triggers an alarm and stops working, and supports dynamic parameter adjustment. Users can modify the thresholds in real time during operation, and the intelligent control unit synchronously updates the control strategy. It also includes a historical data storage module, which can record at least 30 days of operation data and generate flow-time and pressure-temperature curves for users to analyze;

[0039] An electric actuator and a valve control system are connected to the intelligent control unit and are used to control the fluid flow direction and pressure. The electric valve uses a solenoid valve or a proportional valve, and the response speed is ≤ 50 ms to ensure rapid switching of the fluid flow direction. Moreover, a redundant design is adopted. When the main valve or actuator fails, the standby equipment automatically switches to operation to ensure the uninterrupted operation of the system. It has an automatic detection and switching function, and the switching time is ≤ 100 ms.

[0040] Preferably, the intelligent control unit is built-in with an adaptive control algorithm. Based on the feedback data of the sensor system, it automatically adjusts the rotation speed, stroke of the bidirectional conversion pump and the opening degree of the valve control system to achieve stable control with a flow accuracy of ≤ ±1%.

[0041] Preferably, the adaptive control algorithm is specifically a PID control algorithm, which adjusts the system deviation through proportional, integral, and differential operations to achieve precise flow and pressure control.

[0042] Preferably, the adaptive control algorithm is specifically a fuzzy control algorithm. It fuzzifies the input sensor data and generates a control quantity according to the fuzzy rule base to achieve intelligent adjustment of the system.

[0043] Preferably, in the suction mode of the bidirectional conversion pump, according to the target flow rate and pressure range set by the user, the fluid state in the pipeline is monitored in real time through a sensor, and the intelligent control unit adjusts the pump speed to be stable.

[0044] Preferably, in the injection mode of the bidirectional conversion pump, it switches to forward operation, the valve control system adjusts the flow direction, and the intelligent control unit fine-tunes the injection rate according to the feedback data to ensure the accuracy of ≤ ±0.5%.

[0045] Preferably, when the system detects a suction / injection completion signal (such as triggered by a liquid level sensor), it automatically switches the working mode, and the intelligent control unit synchronously optimizes the relevant parameters.

[0046] Preferably, the user interface adopts a touch screen design, supports gesture operations, and can preset multiple working modes, including medical injection mode, laboratory suction mode, etc., to facilitate users to quickly switch usage scenarios.

[0047] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. An integrated suction and injection fluid system, including an intelligent control unit, a two-way conversion pump, a sensor system, a data processing and display interface, an electric actuator and a valve control system, characterized in that: The intelligent control unit is used to collect sensor data, process signals and output control instructions; The bidirectional conversion pump is connected to the intelligent control unit, can switch between suction and injection modes, and has a flow rate and pressure dynamic adjustment function; The sensor system includes a flow sensor, a pressure sensor and a temperature sensor, which are used to monitor the fluid state in real time and feed back to the intelligent control unit; The data processing and display interface is connected to the intelligent control unit, supports the user to set the working parameter range and displays the real-time operation data; The electric actuator and valve control system are connected to the intelligent control unit to control the flow direction and pressure of the fluid.

2. The system according to claim 1, characterized in that: The intelligent control unit has a built-in adaptive control algorithm, which automatically adjusts the rotation speed and stroke of the bidirectional conversion pump and the opening of the valve control system based on the feedback data of the sensor system.

3. The system according to claim 1, characterized in that: The bidirectional conversion pump integrates a dynamic optimization module, which can adjust the working parameters in real time according to the fluid viscosity and flow resistance, so that the pump efficiency is ≥90%.

4. The system according to claim 1, characterized in that: The data processing and display interface is provided with a maximum / minimum range setting module, through which the user can set safety thresholds of flow and pressure. When the actual operating parameters exceed the thresholds, the intelligent control unit triggers an alarm and stops working.

5. The system according to claim 1, characterized in that: The sensor system and the intelligent control unit form a closed-loop control circuit, the data acquisition frequency is ≥100 Hz, and the control response time is ≤100 ms.

6. The system according to claim 1, characterized in that: The intelligent control unit also has a remote communication module, which supports data interaction and remote control with external devices through wireless communication protocols, and the wireless communication protocols include but are not limited to Wi-Fi, Bluetooth, and 4G / 5G.

7. The system according to claim 1, characterized in that: The pump body of the bidirectional conversion pump is made of corrosion-resistant and wear-resistant materials, is suitable for conveying corrosive or high-viscosity fluids, and prolongs the service life of the pump body.

8. The system according to claim 1, characterized in that: The electric actuator and valve control system adopt a redundant design. When the main valve or actuator fails, the backup equipment is automatically switched to operation to ensure uninterrupted operation of the system.

9. The system according to claim 4, characterized in that: The maximum / minimum range setting module supports dynamic parameter adjustment, and the user can modify the threshold in real time during operation, and the intelligent control unit synchronously updates the control strategy.

Images