Sampling device and chemical system

Abstract

The application discloses a sampling device and a chemical system, and belongs to the technical field of chemical systems. The application comprises collecting state data in a chemical pipeline, collecting flow velocity data used by the chemical pipeline, pre-processing the state data in the chemical pipeline, including data cleaning, removing outliers and data alignment, establishing a state model in the chemical pipeline by using the state data in the chemical pipeline and training the state data in the chemical pipeline to improve the generalization ability and prediction accuracy of the model, applying the state model in the chemical pipeline to real-time monitoring after the state model in the chemical pipeline is trained and verified, adjusting the sampling amount of the chemical pipeline and the opening and closing of the switching valve mechanism according to the prediction result, and determining the flow velocity in the pipeline through the setting of the state model in the chemical pipeline, so that the flow direction can be changed according to the situation to realize bidirectional flow, thereby sampling under the influence of transportation, and improving the practicability.

Description

Technical Field

[0001] This application relates to the field of chemical systems technology, and more specifically, to sampling devices and chemical systems. Background Technology

[0002] In the coal chemical and petrochemical industries, it is necessary to collect samples for targeted verification to determine the extent of pollution or to adjust additives according to the degree of pollution generated.

[0003] The prior art publication CN114459832A provides a sampling device and a chemical system. The device is connected to a sample storage device via a first multi-port valve and a second multi-port valve, respectively, through a feed line and a return line. A sampler and a pressure reducing line are connected between the first and second multi-port valves. A nitrogen line for charging nitrogen is connected to the first multi-port valve. The first and second multi-port valves are controllable to allow the return line to selectively connect to either the nitrogen line or the feed line through the sampler. A processing line for processing the sample is connected to the second multi-port valve, and it is controllable to allow the nitrogen line to selectively connect to either the return line or the processing line through the sampler. Optionally, a feed valve is installed on the feed line, a return valve is installed on the return line, a pressure reducing valve is installed on the pressure reducing line, a nitrogen valve is installed on the nitrogen line, a processing valve is installed on the processing line, the sampler is connected to the first multi-way valve and the second multi-way valve respectively via quick connectors, and a flow valve is installed between the sampler and the quick connectors.

[0004] Although the existing technical solutions described above can achieve the relevant beneficial effects through the existing technical structure, they still have the following drawbacks: the device only samples through the equipment, but during use, it is sometimes necessary to add additives to the liquid or gas in the chemical conveying pipeline to improve its use or to add some flavor to arouse people's vigilance, so as to avoid affecting the conveying and use and improve the safety of use.

[0005] In light of this, we propose a sampling device and a chemical system. Summary of the Invention

[0006] 1. The technical problems to be solved.

[0007] The purpose of this application is to provide a sampling device and a method for a chemical system, which solves the technical problem in the background art where the device only samples through the equipment, but during use, it is sometimes necessary to add additives to the liquid or gas in the chemical transport pipeline for better use or to add some flavor to arouse people's vigilance, so as to avoid affecting the transport and use and improve the safety of use. The application achieves the desired technical effect.

[0008] 2. Technical solution.

[0009] This application provides a sampling device and a chemical system, including... Collect status data inside chemical pipelines, and collect flow rate and velocity data when the chemical pipelines are in use.

[0010] Preprocessing of status data within chemical pipelines involves cleaning, removing outliers, and aligning the status data.

[0011] Establish a state model training method for chemical pipelines. Utilize the state data inside the chemical pipelines to establish the state model and train it using the state data.

[0012] The internal state model of chemical pipelines was validated and adjusted. The validation set of internal state data of chemical pipelines was used to evaluate the performance of the internal state model of chemical pipelines, and the model was tuned according to the validation results to improve the generalization ability and prediction accuracy of the model.

[0013] Deployment of the internal state model of chemical pipelines: Once the internal state model of chemical pipelines is trained and verified, it is applied to the real-time monitoring process.

[0014] The execution equipment adjusts the sampling volume of the chemical pipeline and the opening and closing of the switching valve mechanism based on the prediction results.

[0015] By adopting the above technical solution and setting the state model inside the chemical pipeline, the flow rate and velocity inside the pipeline can be determined. This allows the flow direction to be changed according to the situation, enabling bidirectional flow. Sampling can then be performed when the transport is affected, thus improving practicality.

[0016] As an optional solution to the technical solution in this application, the process involves collecting state data within the chemical pipeline, using a flow meter to measure the velocity of the liquid or gaseous fluid in the pipeline, and calculating the flow velocity by measuring the vortex shedding frequency.

[0017] A flow meter is used to measure the flow rate of liquids or gases through a pipe. A differential pressure flow meter calculates the flow rate by measuring the pressure difference in the pipe.

[0018] As an optional solution to the technical solution of this application, the preprocessing of the state data in the chemical pipeline includes data cleaning of the state data in the chemical pipeline, including handling missing values: deleting samples containing missing values, interpolation filling, filling missing values ​​with the mean, median or mode, handling duplicate values: deleting duplicate data points to ensure data uniqueness, and identifying and correcting outliers or errors in the data, including detecting outliers through statistical methods or visualization methods.

[0019] As an optional solution to the technical solution in this application, the establishment of the state model training in the chemical pipeline is carried out by selecting a convolutional neural network as the framework, so that it can learn the complex relationship between flow rate and processing results.

[0020] As an optional solution to the technical solution of this application, the state model verification and adjustment of the chemical pipeline, the optimization strategy, adjusts the hyperparameters and structure of the state model of the chemical pipeline based on the feedback of the verification set, uses grid search technology to search for the best combination of hyperparameters, and avoids overfitting problems during the optimization process by using regularization techniques and Dropout methods.

[0021] As an optional solution to the technical solution of this application, the execution device includes... Chemical pipelines.

[0022] A fixed connecting plate is fixedly installed at the outer end of the main body of the chemical pipeline.

[0023] The sampling and processing box is fixedly installed in the middle of the main body of the chemical pipeline and is connected to its interior.

[0024] A switching valve mechanism is installed inside the chemical pipeline and located on one side of the sampling and processing box.

[0025] 3. Beneficial effects.

[0026] One or more technical solutions provided in this application have at least the following technical effects or advantages.

[0027] 1. This application, by setting up a state model within a chemical pipeline, can determine the flow rate and velocity within the pipeline, thereby allowing the flow direction to be changed according to the situation to enable bidirectional flow, and thus enabling sampling when the transportation is affected, thereby improving practicality.

[0028] 2. This application, through the setting of a sampling and processing box, addresses the occasional need to add additives to the liquids or gases in chemical conveying pipelines for better utilization or to add odors to raise awareness. In such cases, the flow direction of some or all chemical materials can be changed, thereby effectively treating and mixing them to avoid affecting the conveying and use, improving the safety of use, and reducing the drawbacks of separate processing.

[0029] 3. By setting the switching valve mechanism, this application can determine the opening and closing or control the flow rate by moving the valve plug, thereby improving the degree of automation. Attached Figure Description

[0030] Figure 1This is a schematic diagram of the overall structure of the sampling device and chemical system disclosed in a preferred embodiment of this application.

[0031] Figure 2 This is a schematic diagram of the overall structure of the sampling device and chemical system disclosed in a preferred embodiment of this application.

[0032] Figure 3 This is a schematic diagram of the overall structure of the sampling device and chemical system disclosed in a preferred embodiment of this application.

[0033] Figure 4 This is a structurally exploded view of the sampling device and the sampling processing box of the chemical system disclosed in a preferred embodiment of this application.

[0034] Figure 5 This is an exploded view of the sampling device and the switching valve mechanism of the chemical system disclosed in a preferred embodiment of this application.

[0035] The following are the labels in the diagram: 1. Main body of chemical pipeline; 2. Fixed connection plate; 3. Sampling and processing box; 31. Reagent tank; 32. One-way pipe A; 33. Stirring rod; 34. Machine box; 35. First motor; 36. One-way pipe B; 4. Switching valve mechanism; 41. Valve plug; 42. Slide groove; 43. Lead screw; 44. Threaded hole; 45. Empty groove; 46. Mechanical box; 47. Second motor; 48. Machine cavity; 49. Drive gear; 410. Rotating gear. Detailed Implementation

[0036] The present application will be further described in detail below with reference to the accompanying drawings. Reference Figure 1 This application provides a sampling device and a chemical system to collect state data inside the chemical pipeline and to collect flow rate and velocity data when the chemical pipeline is in use.

[0037] Preprocessing of status data within chemical pipelines involves cleaning, removing outliers, and aligning the status data.

[0038] Establish a state model training method for chemical pipelines. Utilize the state data inside the chemical pipelines to establish the state model and train it using the state data.

[0039] The internal state model of chemical pipelines was validated and adjusted. The validation set of internal state data of chemical pipelines was used to evaluate the performance of the internal state model of chemical pipelines, and the model was tuned according to the validation results to improve the generalization ability and prediction accuracy of the model.

[0040] Deployment of the internal state model of chemical pipelines: Once the internal state model of chemical pipelines is trained and verified, it is applied to the real-time monitoring process.

[0041] The execution equipment adjusts the sampling volume of the chemical pipeline and the opening and closing of the switching valve mechanism 4 based on the prediction results.

[0042] By setting up a state model within a chemical pipeline, the flow rate and velocity within the pipeline can be determined. This allows for adjustments to the flow direction to enable bidirectional flow, facilitating sampling when conditions affect transportation and improving practicality.

[0043] Reference Figure 1 and Figure 2 This application provides a sampling device and a chemical system that collects state data within a chemical pipeline, uses a flow meter to measure the velocity of liquid or gas fluid in the pipeline, and calculates the flow velocity by measuring the vortex shedding frequency.

[0044] A flow meter is used to measure the flow rate of liquids or gases through a pipe. A differential pressure flow meter calculates the flow rate by measuring the pressure difference in the pipe.

[0045] Preprocessing of state data within chemical pipelines involves data cleaning, including handling missing values ​​(deleting samples containing missing values, interpolation filling, filling missing values ​​with the mean, median, or mode), handling duplicate values ​​(deleting duplicate data points to ensure data uniqueness), and identifying and correcting outliers or errors in the data, including detecting outliers through statistical or visualization methods.

[0046] A state model for chemical pipelines was established and trained. A convolutional neural network (CNN) was selected as the architecture to enable it to learn the complex relationship between flow rate and processing results.

[0047] The internal state model of the chemical pipeline was validated and adjusted. The optimization strategy involved adjusting the hyperparameters and structure of the internal state model of the chemical pipeline based on the feedback from the validation set. Grid search was used to search for the optimal combination of hyperparameters. Overfitting was avoided during the optimization process by using regularization techniques and Dropout.

[0048] The execution equipment includes: the main body of the chemical pipeline 1.

[0049] Fixed connecting plate 2 is fixedly installed at the outer end of the chemical pipeline body 1.

[0050] Sampling and processing box 3 is fixedly installed in the middle of the main body of the chemical pipeline 1 and is connected to its interior.

[0051] The switching valve mechanism 4 is located inside the main body of the chemical pipeline 1 and on one side of the sampling and processing box 3.

[0052] Reference Figure 2 and Figure 3This application provides a sampling device and a chemical system, including... Chemical pipeline body 1.

[0053] Fixed connecting plate 2 is fixedly installed at the outer end of the chemical pipeline body 1.

[0054] Sampling and processing box 3 is fixedly installed in the middle of the main body of the chemical pipeline 1 and is connected to its interior.

[0055] The switching valve mechanism 4 is located inside the main body of the chemical pipeline 1 and on one side of the sampling and processing box 3.

[0056] Reference Figure 4 This application provides a sampling device and a chemical system, wherein a reagent tank 31 is connected to one side of the sampling and processing box 3.

[0057] A one-way pipe A32 is installed on one side of the sampling and processing box 3, and one end of the one-way pipe A32 is connected to one side of the main body of the chemical pipeline 1.

[0058] A stirring rod 33 is rotatably installed inside the sampling and processing box 3. A housing 34 is fixedly installed in the middle of the sampling and processing box 3. A first motor 35 is installed inside the housing 34. The output shaft of the first motor 35 is coaxially and fixedly connected to the stirring rod 33.

[0059] The bottom of the sampling and processing box 3 is connected to the interior of the chemical pipeline body 1 through a one-way pipe B36.

[0060] By using the sampling and processing box 3, samples can be taken from inside the box via the one-way pipe B36. The output shaft of the first motor 35 rotates, driving the stirring rod 33 to rotate. The stirring rod 33 then processes the contents of the sampling and processing box 3. After processing, the samples return to the main body of the chemical pipeline 1 via the one-way pipe A32 due to pressure, thus improving the mixing effect. Alternatively, the sampling and processing box 3 can be used to add additives to the liquids or gases in the chemical pipeline for better utilization or to add odors to raise awareness. In such cases, the flow direction of some or all of the chemical materials can be changed, thereby effectively processing and mixing them, avoiding any impact on transportation and improving safety. This is very convenient and reduces the drawbacks of separate processing.

[0061] Reference Figure 5 This application provides a sampling device and a chemical system. The switching valve mechanism 4 includes a valve plug 41, which is slidably disposed inside a groove 42 opened inside the chemical pipeline body 1.

[0062] A lead screw 43 is rotatably mounted inside the slide groove 42, and the lead screw 43 is threadedly connected to the threaded hole 44 inside the valve plug 41.

[0063] A mechanical box 46 is fixedly installed on the inner wall of the chute 42. A second motor 47 is installed inside the mechanical box 46. The output shaft of the second motor 47 passes through the cavity 48 opened inside the chemical pipeline body 1 and is coaxially fixedly installed with a drive gear 49. A rotating gear 410 is meshed with the outer wall of the drive gear 49. The rotating gear 410 is coaxially fixedly connected with the cylindrical end of the lead screw 43.

[0064] The valve plug 41 has a hollow groove 45 inside, which is fitted with the mechanical box 46 with a clearance.

[0065] The rotation of the output shaft of the second motor 47 drives the drive gear 49 to rotate, and the drive gear 49 meshes with the rotating gear 410, thereby causing the lead screw 43 to rotate. The lead screw 43 is threadedly connected to the threaded hole 44, which in turn drives the valve plug 41 to move. By switching the valve mechanism 4, the opening and closing or the flow rate can be controlled by the movement of the valve plug 41, thus improving the degree of automation.

[0066] When this sampling device and chemical system are needed, firstly, state data within the chemical pipeline is collected. A velocity meter is used to measure the velocity of the liquid or gas fluid in the pipeline, and the flow velocity is calculated by measuring the vortex shedding frequency. A flow meter is used to measure the flow rate of the liquid or gas through the pipeline; a differential pressure flow meter calculates the flow rate by measuring the pressure difference in the pipeline. Preprocessing of the state data within the chemical pipeline involves data cleaning, outlier removal, and data alignment. Data cleaning of the state data within the chemical pipeline includes handling missing values: deleting samples containing missing values, interpolation imputation, and imputing missing values ​​using the mean, median, or mode; handling duplicate values: deleting duplicate data points to ensure data uniqueness; and identifying and correcting outliers or errors in the data, including through... Outliers are detected using statistical or visualization methods. A state model of the chemical pipeline is built using internal state data and trained on this data. A convolutional neural network (CNN) is chosen for the model to learn the complex relationship between flow rate and processing results. A validation set of internal state data is used to evaluate the performance of the state model, and the model is fine-tuned based on the validation results to improve its generalization ability and prediction accuracy. The tuning strategy involves adjusting the hyperparameters and structure of the state model based on feedback from the validation set. A grid search technique is used to find the optimal combination of hyperparameters. Overfitting is avoided during tuning by employing regularization techniques and Dropout. The method involves training and validating the state model within the chemical pipeline, then applying it to real-time monitoring. Based on the prediction results, the sampling volume of the chemical pipeline and the opening and closing of the switching valve mechanism 4 are adjusted. At this time, the output shaft of the second motor 47 rotates, driving the drive gear 49 to rotate. The drive gear 49 meshes with the rotating gear 410, causing the lead screw 43 to rotate. The lead screw 43 is threadedly connected to the threaded hole 44, which in turn drives the valve plug 41 to move. By setting the switching valve mechanism 4, the opening and closing or flow rate control can be determined by the movement of the valve plug 41, improving the degree of automation. After the valve plug 41 opens and closes, the sampling processing box 3 can be sampled through the one-way pipe B36. The output shaft of the first motor 35 rotates, driving the stirring rod 33 to rotate. At this time, the stirring rod 33 can process the contents of the sampling processing box 3. After processing, due to the pressure, the samples can be transported back to the main body of the chemical pipeline 1 through the one-way pipe A32.

Claims

1. A sampling device and a chemical system, characterized in that: Include: Collect status data inside chemical pipelines, and collect flow rate and velocity data when chemical pipelines are in use; Preprocessing of status data within chemical pipelines: This involves data cleaning, outlier removal, and data alignment of the status data within chemical pipelines. Establish a state model training for chemical pipelines; use state data inside chemical pipelines to establish a state model inside chemical pipelines and train it using the state data inside chemical pipelines. The internal state model of chemical pipelines was validated and adjusted. The validation set of internal state data of chemical pipelines was used to evaluate the performance of the internal state model of chemical pipelines, and the internal state model of chemical pipelines was tuned according to the validation results to improve the generalization ability and prediction accuracy of the model. Deployment of the state model inside the chemical pipeline: Once the state model inside the chemical pipeline is trained and verified, it is applied to the real-time monitoring process. The execution equipment adjusts the sampling volume of the chemical pipeline and the opening and closing of the switching valve mechanism (4) according to the prediction results; Chemical pipeline body (1); Fixed connecting plate (2), the fixed connecting plate (2) is fixedly installed at the outer end of the chemical pipeline body (1); The sampling and processing box (3) is fixedly installed in the middle of the chemical pipeline body (1) and connected to its interior; a reagent box is connected to one side of the sampling and processing box; a one-way pipe A is installed on one side of the sampling and processing box, and one end of the one-way pipe A is connected to one side of the chemical pipeline body. The sampling and processing box is equipped with a rotating stirring rod inside. A machine box is fixedly installed in the middle of the sampling and processing box. A first motor is installed inside the machine box, and the output shaft of the first motor is coaxially and fixedly connected to the stirring rod.

2. The sampling device and chemical system according to claim 1, characterized in that: The process involves collecting state data within the chemical pipeline, using a flow meter to measure the velocity of liquid or gaseous fluids within the pipeline, and calculating the flow velocity by measuring the vortex shedding frequency. A flow meter is used to measure the flow rate of liquids or gases through a pipe. A differential pressure flow meter calculates the flow rate by measuring the pressure difference in the pipe.

3. The sampling device and chemical system according to claim 1, characterized in that: The preprocessing of the state data within the chemical pipeline involves data cleaning, including handling missing values ​​(deleting samples containing missing values, interpolation filling, filling missing values ​​with the mean, median, or mode), handling duplicate values ​​(deleting duplicate data points to ensure data uniqueness), and identifying and correcting outliers or errors in the data, including detecting outliers through statistical or visualization methods.

4. The sampling device and chemical system according to claim 1, characterized in that: The process involves establishing a state model training method for the chemical pipeline, using a convolutional neural network as the framework to enable it to learn the complex relationship between flow velocity, flow rate, and processing results.

5. The sampling device and chemical system according to claim 1, characterized in that: The state model of the chemical pipeline was verified and adjusted. The optimization strategy involved adjusting the hyperparameters and structure of the state model based on feedback from the validation set. Grid search was used to find the optimal combination of hyperparameters. Overfitting was avoided during the optimization process by using regularization techniques and Dropout.

6. The sampling device and chemical system according to claim 1, characterized in that: The execution device includes: The switching valve mechanism (4) is located inside the main body of the chemical pipeline (1) and on one side of the sampling and processing box (3).

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