An automatic regulating device based on pressure and flow sensors

Abstract

The present invention discloses an automatic regulating device based on pressure and flow sensors, which relates to the technical field of tank batching. It solves the technical problem that the data generated in the actual batching process are not analyzed in stages, which may lead to some errors in the corresponding batching data. According to the specific monitoring values, the specific batching process is divided into three stages. The batching is carried out normally in the first stage. According to the specific values ​​generated in the first stage, the specific batching ratio of the second stage is generated to adjust the pump speed of the second stage. After the batching in the second stage is completed, according to the batching data generated in the second stage, it is confirmed whether there is a problem with the batching ratio. If there is a problem, the operator intervenes. If there is no problem, the batching is carried out normally according to the original batching ratio. In this way, while fully ensuring the accuracy of the batching ratio, its batching efficiency can also be ensured, thereby improving the adaptive regulation effect of the entire batching process.

Description

Technical Field

[0001] The invention belongs to the technical field of tank batching, and in particular is an automatic regulating device based on pressure and flow sensors. Background Art

[0002] When the batching tank is batching, the traditional PLC is used to set parameters and trigger the PLC to control the pump. It is impossible to determine whether it meets the process requirements, and this method cannot accurately measure the output capacity of the pump. This control mode cannot autonomously repair process defects.

[0003] The application with patent publication number CN115337849A provides an automated e-liquid batching system and batching method. The batching system is composed of an IFS device, a conveying device and a discharging device. The IFS device controls the batching process and collects batching information. The IFS device is signal-connected to the conveying device and the discharging device respectively. The discharging device is arranged on the conveying device. The conveying device includes a conveying roller and a sensor mechanism arranged on the conveying roller. The conveying roller is used to convey the batching container. When the automated batching system is working, the IFS device receives batching task information and sends the task information to the conveying device and the discharging device. The conveying device transports the container to the discharging device for discharging according to the task information. Through the automated e-liquid batching system, this application can automatically obtain batching task information for high-precision batching, automatically inventory and provide real-time inventory of tanks, to ensure the accuracy and reliability of discharging.

[0004] In the actual batching process, the PLC front end is controlled by AI edge computing. Edge computing is embedded in process optimization machine learning, collects basic data from front-end sensors, and confirms the output capacity of the pump. However, the data is confirmed by the front-end data, and the data generated in the actual batching process is not analyzed in stages, which will cause some errors in the corresponding batching data, thereby improving the accuracy of the batching. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes an automatic adjustment device based on pressure and flow sensors, which is used to solve the technical problem that the data generated in the actual batching process is not analyzed in stages, resulting in slight errors in the corresponding batching data.

[0006] To achieve the above-mentioned object, according to an embodiment of the first aspect of the present invention, an automatic adjustment device based on pressure and flow sensors is provided, comprising a pressure sensor, a flow sensor, a capacity monitoring terminal and an automatic adjustment center;

[0007] The automatic adjustment center includes a capacity value confirmation unit, a storage unit, a numerical analysis unit, an adaptive control unit and a pump;

[0008] The pressure sensor obtains the pressure value of the material inside the conveying pipeline in real time and transmits the pressure value to the automatic adjustment center;

[0009] The flow sensor acquires the flow value of the material inside the conveying pipeline in real time and transmits the flow value to the automatic adjustment center;

[0010] The capacity monitoring terminal is used to monitor the capacity of the container and transmit the monitored value to the automatic adjustment center;

[0011] The capacity value confirmation unit performs adaptive monitoring and adjustment according to the capacity value of the monitored container, generates different processing signals according to the change of the specific capacity value, and transmits the generated processing signals to the numerical analysis unit. The specific method of generating different processing signals is as follows:

[0012] Get the capacity volume parameter of the corresponding container from the storage unit and mark the capacity volume parameter as TJ i , where i represents different corresponding containers, and the monitored capacity value is marked as RL i ;

[0013] Using RL i ÷TJ i =ZB i Get the proportion parameter ZB i , extract the preset parameter Y1 from the storage unit, where Y1 takes the value 1 / 2, and the proportion parameter ZB i Compare with the preset parameter Y1, when ZB i When Y1 is less than ZB, no processing is performed. i =Y1, an initial analysis signal is generated and the batching process is stopped at the same time, and the batching is continued until the next start signal is generated, and the initial analysis signal is transmitted to the numerical analysis unit;

[0014] The numerical analysis unit analyzes the sensor data monitored by the pressure sensors and flow sensors of the two channels in different stages of the batching process based on the processed signals, determines whether there is any error in the batching process, and generates an error confirmation signal. The specific method of analyzing the monitored sensor data based on the initial analysis signal is as follows:

[0015] The pressure value monitored by the pressure sensor is marked as SZ k , mark the flow value monitored by the flow sensor as LL k, where k represents different time points, and the pressure values ​​and flow values ​​are averaged to obtain the pressure mean JZ and flow mean LJ;

[0016] The two channels' different batching values ​​RJA and RJB are obtained using RJ = JZ × C1 + LJ × C2, where C1 and C2 are both preset fixed coefficient factors. The actual batching value FB is obtained using RJA ÷ RJB = FB, and the preset parameter Y2 is extracted from the storage unit, where Y2 is the preset value. When FB = Y2, no processing is performed. Otherwise, an error confirmation signal is generated and transmitted to the adaptive control unit.

[0017] The adaptive control unit adjusts the proportion of the subsequent proportioning process according to the error confirmation signal and transmits the adjusted value to the pump. The specific method of adaptively adjusting the pump is as follows:

[0018] Confirm the difference between the actual proportion value FB and the preset value Y2, obtain the corresponding difference, and then sum Y2 and the difference to obtain the subsequent second-order proportion ratio PB, and adjust the pump parameters of the two groups of channels according to the second-order proportion ratio PB. After the adjustment is completed, generate the start signal again to control the pump to work, and at the same time control the pressure sensor and flow sensor to re-monitor the pressure and flow values ​​in the two groups of channels, and re-transmit the re-monitored values ​​to the capacity value confirmation unit.

[0019] Furthermore, the capacity value confirmation unit confirms the specific value monitored by the capacity monitoring end during the second stage of batching, and stops when the internal capacity percentage of the container reaches Y3 based on the specific value monitored, where Y3 is a preset value, generates a re-analysis signal, and transmits it to the numerical analysis unit, and simultaneously generates a pause signal to shut down the pumps corresponding to the two groups of channels.

[0020] Furthermore, the numerical analysis unit analyzes the sensor data monitored by the pressure sensors and flow sensors of the two channels in the second stage batching process according to the re-analysis signal in a specific manner as follows:

[0021] During the second stage of batching, the pressure values ​​and flow values ​​of the pressure sensor and the flow sensor are confirmed, and the pressure values ​​of the pressure sensor are averaged to obtain the pressure average value, and the flow values ​​of the flow sensor are averaged to obtain the flow average value;

[0022] Then, the second-stage batching values ​​RA and RB of the two channels are obtained by RJ = pressure average × C1 + flow average × C2, and the ratio parameter AB of the two channels is obtained by RA ÷ RB = AB.

[0023] Then analyze and compare the proportion parameter AB with the second-order proportion PB. When AB=PB, the start signal is directly generated, and the original second-order proportion PB is used to adjust the pump so that the pumps of the two channels can work. When AB≠PB, an adaptive adjustment signal is generated and transmitted to the display terminal.

[0024] Preferably, the display terminal displays the adaptive adjustment signal and displays the proportioning parameter AB and the second-order proportioning ratio PB for external personnel to view.

[0025] Compared with the prior art, the present invention has the following beneficial effects: according to the pressure sensor and the flow sensor, the material body inside the conveying pipeline is numerically monitored, and subsequently according to the specific monitoring values, the specific batching process is divided into three stages, the first stage is to carry out normal batching, and according to the specific values ​​generated in the first stage, the specific batching ratio of the second stage is generated, and then the pump speed of the second stage is adjusted according to the generated specific batching ratio to carry out batching, and after the batching of the second stage is completed, the batching data generated during the second stage are analyzed again to confirm whether there is a problem with the batching ratio. If there is a problem, the operator intervenes, and if there is no problem, the batching is carried out normally according to the original batching ratio.

[0026] By adopting this method, while fully ensuring the accuracy of the batching ratio, it can also ensure its batching efficiency and improve the adaptive adjustment effect of the entire batching process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the principle framework of the present invention;

[0028] Figure 2 This is a schematic diagram of the sensor of the present invention monitoring the material body. DETAILED DESCRIPTION

[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1 , the present application provides an automatic regulation device based on pressure and flow sensors, including a pressure sensor, a flow sensor, a capacity monitoring terminal, an automatic regulation center and a display terminal;

[0031] The automated regulation center includes a capacity value confirmation unit, a storage unit, a numerical analysis unit, an adaptive control unit, and a pump. The storage unit is electrically connected to an input end of the capacity value confirmation unit, the capacity value confirmation unit is electrically connected to an input end of the numerical analysis unit, the numerical analysis unit is bidirectionally connected to the storage unit, the numerical analysis unit is electrically connected to an input end of the adaptive control unit, and the adaptive control unit is electrically connected to an input end of the pump.

[0032] The pressure sensor obtains the pressure value of the material inside the conveying pipeline in real time and transmits the pressure value to the automatic adjustment center;

[0033] The flow sensor acquires the flow value of the material inside the conveying pipeline in real time and transmits the flow value to the automatic adjustment center;

[0034] The capacity monitoring terminal is used to monitor the capacity of the container and transmit the monitored value to the automatic adjustment center;

[0035] The capacity value confirmation unit performs adaptive monitoring and adjustment according to the capacity value of the monitored container, generates different processing signals according to the change of the specific capacity value, and transmits the generated processing signals to the numerical analysis unit, wherein the specific method of generating different processing signals is:

[0036] Get the capacity volume parameter of the corresponding container from the storage unit and mark the capacity volume parameter as TJ i , where i represents different corresponding containers, and the monitored capacity value is marked as RL i ;

[0037] Using RL i ÷TJ i =ZB i Get the proportion parameter ZB i , extract the preset parameter Y1 from the storage unit, where Y1 is the preset value, and Y1 is generally 1 / 2, and the proportion parameter ZB i Compare with the preset parameter Y1, when ZB i When Y1 is less than ZB, no processing is performed. i =Y1, an initial analysis signal is generated and the batching process is stopped at the same time, until the next start signal is generated and the batching is continued, and the initial analysis signal is transmitted to the numerical analysis unit. Specifically, in order to improve the accuracy of the batching process, the batching process is distinguished, and the data of each different stage is analyzed. According to the analysis results, the subsequent corresponding demand value is determined to improve the corresponding batching accuracy.

[0038] The numerical analysis unit analyzes the sensor data monitored by the pressure sensors and flow sensors of the two channels in the first stage batching process based on the initial analysis signal to determine whether there is any error in the batching process. The specific method of performing the analysis is as follows:

[0039] The pressure value monitored by the pressure sensor is marked as SZ k , mark the flow value monitored by the flow sensor as LL k , where k represents different time points, and the pressure values ​​and flow values ​​are averaged to obtain the pressure mean JZ and flow mean LJ;

[0040] The different batching values ​​RJA and RJB of the two channels are obtained by using RJ=JZ×C1+LJ×C2, where C1 and C2 are both preset fixed coefficient factors, and their specific values ​​are determined by the operator based on experience. The actual batching ratio FB is obtained by using RJA÷RJB=FB, and the preset parameter Y2 is extracted from the storage unit, where Y2 is a preset value, and its specific value is determined by the operator based on experience. Y2 can be understood as the optimal batching ratio value. When FB=Y2, no processing is performed. Otherwise, an error confirmation signal is generated and transmitted to the adaptive control unit.

[0041] Specific, combined Figure 2 The pressure sensor and the flow sensor can monitor the material transmitted inside the pipe A and the pipe B, and transmit the monitored values ​​to the numerical analysis unit. During the normal operation of the pump, the consistency between the ingredients is inconsistent, which can easily cause errors in the ingredient ratio. Therefore, before the container reaches half, the fastest pump speed is used for ingredient mixing. During the ingredient mixing process, the pressure value and flow value generated during the ingredient mixing process are confirmed and analyzed. According to the analysis parameters, the corresponding subsequent actual ratio value FB is confirmed, and it is analyzed whether there is an error. If there is an error, the ingredient ratio in the subsequent second-order ingredient mixing process is confirmed and adjusted.

[0042] The adaptive control unit adjusts the proportion of the subsequent proportioning process according to the error confirmation signal, and transmits the adjustment value to the pump to perform adaptive adjustment on the pump. The specific method of the adjustment is as follows:

[0043] Confirm the difference between the actual proportion value FB and the preset value Y2, obtain the corresponding difference, and then sum Y2 and the difference to obtain the subsequent second-order proportion ratio PB, and adjust the pump parameters of the two groups of channels according to the second-order proportion ratio PB. After the adjustment is completed, generate the start signal again to control the pump to work, and at the same time control the pressure sensor and flow sensor to re-monitor the pressure and flow values ​​in the two groups of channels, and re-transmit the re-monitored values ​​to the capacity value confirmation unit.

[0044] The capacity value confirmation unit confirms the specific value monitored by the capacity monitoring end during the second stage of batching, and stops the operation when the internal capacity of the container reaches Y3 according to the specific value monitored, wherein Y3 is a preset value, the specific value of which is determined by the operator based on experience, and Y3 is generally 0.9, and generates a re-analysis signal and transmits it to the value analysis unit, and simultaneously generates a pause signal to shut down the pumps corresponding to the two groups of channels. Under normal circumstances, the shutdown time will generally not exceed 30 seconds;

[0045] Specifically, based on the second-order batching ratio confirmed in the previous stage, adjustments are made to the batching process in this stage, and the parameters of the pump are controlled. Adaptive adjustments are made based on specific control values. If corresponding problems still exist later, the operator will intervene and batch by himself to ensure the accuracy of the batching process. At the same time, in the process of ensuring accuracy, the batching efficiency is guaranteed, and the batching rate is not reduced due to the batching process, resulting in the problem of slow efficiency.

[0046] The numerical analysis unit analyzes the sensor data monitored by the pressure sensors and flow sensors of the two channels in the second stage batching process according to the re-analysis signal to determine whether there is an error in the batching process. The specific method of performing the analysis is as follows:

[0047] During the second stage of batching, the pressure values ​​and flow values ​​of the pressure sensor and the flow sensor are confirmed, and the pressure values ​​of the pressure sensor are averaged to obtain the pressure average value, and the flow values ​​of the flow sensor are averaged to obtain the flow average value;

[0048] Then, the second-stage batching values ​​RA and RB of the two channels are obtained by RJ = pressure average × C1 + flow average × C2, and the ratio parameter AB of the two channels is obtained by RA ÷ RB = AB.

[0049] Then analyze and compare the proportion parameter AB with the second-order proportion PB. When AB=PB, the start signal is directly generated, and the original second-order proportion PB is used to adjust the pump so that the pumps of the two channels can work. When AB≠PB, an adaptive adjustment signal is generated and transmitted to the display terminal.

[0050] The display terminal displays the adaptive adjustment signal and the proportioning parameters AB and the second-order proportioning ratio PB for external personnel to view, and adaptively control the pumps of the two channels based on personal experience, and control and adjust the transmission proportioning of the two groups of channels.

[0051] Some of the data in the above formula are calculated by removing the dimensions and taking their numerical values. The formula is a formula that is closest to the actual situation obtained by software simulation of a large amount of collected data; the preset parameters and preset thresholds in the formula are set by technical personnel in this field according to actual conditions or obtained through simulation of a large amount of data.

[0052] The working principle of the present invention is as follows: the material inside the conveying pipeline is numerically monitored according to the pressure sensor and the flow sensor, and the specific batching process is subsequently divided into three stages according to the specific monitoring values. The batching is performed normally in the first stage, and the specific batching ratio of the second stage is generated according to the specific values ​​generated in the first stage. Subsequently, the pump speed of the second stage is adjusted according to the generated specific batching ratio to perform batching. After the batching in the second stage is completed, the batching data generated during the second stage are analyzed again to confirm whether there is a problem with the batching ratio. If there is a problem, the operator intervenes. If there is no problem, the batching is performed normally according to the original batching ratio.

[0053] By adopting this method, while fully ensuring the accuracy of the batching ratio, it can also ensure its batching efficiency and improve the adaptive adjustment effect of the entire batching process.

[0054] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. An automatic regulating device based on pressure and flow sensors, characterized in that: Including pressure sensor, flow sensor, capacity monitoring terminal and automatic adjustment center; The automatic adjustment center includes a capacity value confirmation unit, a storage unit, a numerical analysis unit, an adaptive control unit and a pump; The pressure sensor obtains the pressure value of the material inside the conveying pipeline in real time and transmits the pressure value to the automatic adjustment center; The flow sensor acquires the flow value of the material inside the conveying pipeline in real time and transmits the flow value to the automatic adjustment center; The capacity monitoring terminal is used to monitor the capacity of the container and transmit the monitored value to the automatic adjustment center; The capacity value confirmation unit performs adaptive monitoring and adjustment according to the capacity value of the monitored container, generates different processing signals according to the change of the specific capacity value, and transmits the generated processing signals to the numerical analysis unit. The specific method is as follows: Get the capacity volume parameter of the corresponding container from the storage unit and mark the capacity volume parameter as TJ i , where i represents different corresponding containers, and the monitored capacity value is marked as RL i ; Using RL i ÷TJ i =ZB i Get the proportion parameter ZB i , extract the preset parameter Y1 from the storage unit, where Y1 takes the value 1 / 2, and the proportion parameter ZB i Compare with the preset parameter Y1, when ZB i When Y1 is less than ZB, no processing is performed. i =Y1, an initial analysis signal is generated and the batching process is stopped at the same time, and the batching is continued until the next start signal is generated, and the initial analysis signal is transmitted to the numerical analysis unit; The numerical analysis unit analyzes the sensor data monitored by the pressure sensors and flow sensors of the two channels in different stages of the batching process based on the processed signals, determines whether there is any error in the batching process, and generates an error confirmation signal. The specific method is as follows: The pressure value monitored by the pressure sensor is marked as SZ k , mark the flow value monitored by the flow sensor as LL k , where k represents different time points, and the pressure values ​​and flow values ​​are averaged to obtain the pressure mean JZ and flow mean LJ; The two channels' different batching values ​​RJA and RJB are obtained using RJ = JZ × C1 + LJ × C2, where C1 and C2 are both preset fixed coefficient factors. The actual batching value FB is obtained using RJA ÷ RJB = FB, and the preset parameter Y2 is extracted from the storage unit, where Y2 is the preset value. When FB = Y2, no processing is performed. Otherwise, an error confirmation signal is generated and transmitted to the adaptive control unit. The adaptive control unit adjusts the batching ratio of the subsequent batching process according to the error confirmation signal, and transmits the adjustment value to the pump to perform adaptive adjustment on the pump. The specific method is as follows: Confirm the difference between the actual proportion value FB and the preset value Y2, obtain the corresponding difference, and then sum Y2 and the difference to obtain the subsequent second-order proportion ratio PB, and adjust the pump parameters of the two groups of channels according to the second-order proportion ratio PB. After the adjustment is completed, generate the start signal again to control the pump to work, and at the same time control the pressure sensor and flow sensor to re-monitor the pressure and flow values ​​in the two groups of channels, and re-transmit the re-monitored values ​​to the capacity value confirmation unit.

2. The automatic regulating device based on pressure and flow sensors according to claim 1, characterized in that: The capacity value confirmation unit confirms the specific value monitored by the capacity monitoring end during the second stage of batching, and stops when the internal capacity percentage of the container reaches Y3 based on the specific value monitored, where Y3 is a preset value, generates a re-analysis signal, and transmits it to the numerical analysis unit, and simultaneously generates a pause signal to turn off the pumps corresponding to the two groups of channels.

3. The automatic regulating device based on pressure and flow sensors according to claim 2, characterized in that: The specific method in which the numerical analysis unit analyzes the sensor data monitored by the pressure sensors and flow sensors of the two channels in the second stage batching process according to the re-analysis signal is as follows: During the second stage of batching, the pressure values ​​and flow values ​​of the pressure sensor and the flow sensor are confirmed, and the pressure values ​​of the pressure sensor are averaged to obtain the pressure average value, and the flow values ​​of the flow sensor are averaged to obtain the flow average value; Then, the second-stage batching values ​​RA and RB of the two channels are obtained by RJ = pressure average × C1 + flow average × C2, and the ratio parameter AB of the two channels is obtained by RA ÷ RB = AB. Then analyze and compare the proportion parameter AB with the second-order proportion PB. When AB=PB, the start signal is directly generated, and the original second-order proportion PB is used to adjust the pump so that the pumps of the two channels can work. When AB≠PB, an adaptive adjustment signal is generated and transmitted to the display terminal.

4. The automatic regulating device based on pressure and flow sensors according to claim 3 is characterized in that: The display terminal displays the adaptive adjustment signal and displays the proportioning parameter AB and the second-order proportioning ratio PB for external personnel to view.

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