Solvent treatment device for insoluble substance analysis

Abstract

The utility model discloses a solvent treatment device for insoluble substance analysis, which comprises a solution bottle, a peristaltic pump, a liquid cup, a heating device, a temperature sensor, a liquid level sensor and a control unit, the solution bottle, the peristaltic pump, the heating device and the liquid cup are sequentially connected through pipelines, the liquid level sensors comprise the first liquid level sensor and the second liquid level sensor which are arranged on the pipelines connected with the upper end and the lower end of the heating device respectively, and the temperature sensor is attached to the outer side face of the pipeline between the heating device and the first liquid level sensor; the peristaltic pump, the heating device, the temperature sensor and the liquid level sensor are all electrically connected with the control unit; according to the utility model, the accuracy of temperature control is improved, and the safety of the device and the reliability of analysis data are improved.

Description

Technical Field

[0001] This utility model belongs to the field of petrochemical testing technology, specifically relating to a solvent treatment device for the analysis of insoluble substances. Background Technology

[0002] In the analysis of insoluble matter in liquid samples in the petroleum and chemical industries, temperature control is directly related to the accuracy and validity of the analytical results. A suitable temperature ensures that the solvent maintains optimal solubility, guaranteeing the complete dissolution of soluble components in the sample and preventing residual soluble matter from contaminating the insoluble matter and causing inaccurate test results due to excessively low temperatures. Simultaneously, a stable temperature prevents abnormal solvent evaporation due to overheating or structural changes in insoluble matter caused by temperature fluctuations, ensuring the purity and integrity of the insoluble matter to be separated. This provides a precise sample basis for subsequent analytical steps such as filtration and weighing, and is a core prerequisite for achieving efficient separation and accurate quantification of insoluble matter.

[0003] Existing solvent heating devices have significant defects in structural design and functional coordination. Firstly, they generally employ a single-stage heating design, relying on only a single heating module. This results in uneven heat distribution and an inability to achieve reasonable heat allocation, leading to insufficient overall temperature control accuracy, large temperature fluctuations, and difficulty in maintaining the stable temperature environment required for solvent dissolution. Secondly, these devices lack effective linkage with sensors and lack a heating start-stop trigger mechanism based on liquid level. When the pipe is not full, the heating device may continue to operate, which can easily lead to dry burning, causing damage to heating elements, pipe aging, and other equipment failures, posing safety hazards. Furthermore, the combination of temperature fluctuations and abnormal liquid levels can further cause abnormal solvent evaporation rates or incomplete dissolution of soluble substances, resulting in incomplete separation of effective components during insoluble substance extraction, significant fluctuations in extraction efficiency, and ultimately increased deviations in detection results, failing to meet the industry's basic requirements for the reliability of insoluble substance analysis results. Utility Model Content

[0004] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and provide a solvent processing device for the analysis of insoluble substances. This invention improves the accuracy of temperature control, enhances the safety of the device, and increases the reliability of the analytical data.

[0005] The technical solution adopted by this utility model to solve its existing problems is:

[0006] A solvent processing device for insoluble matter analysis includes a solution bottle, a peristaltic pump, and a liquid cup, as well as a heating device, a temperature sensor, a liquid level sensor, and a control unit. The peristaltic pump, heating device, temperature sensor, and liquid level sensor are all electrically connected to the control unit. The solution bottle, peristaltic pump, heating device, and liquid cup are connected in sequence through pipelines. The liquid level sensor is divided into a first liquid level sensor and a second liquid level sensor, which are respectively installed on the pipelines connected to the upper and lower ends of the heating device. The temperature sensor is attached to the outer side of the pipeline between the heating device and the first liquid level sensor.

[0007] The heating device has a hollow annular heating tube inside, with spiral heating wires installed in the interlayer between the outer and inner walls.

[0008] The heating device has threads on the top of both the upper and lower ends.

[0009] The inner diameter of the hollow heating device is slightly larger than the outer diameter of the pipe.

[0010] Preferably, the probe of the temperature sensor is in close contact with the outer surface of the pipeline, and a high-temperature resistant tape is provided around the combination of the temperature sensor and the pipeline.

[0011] Specifically, the liquid level sensor has a concave structure, with the groove matching the pipeline, and is fixedly installed on the pipeline by the limiting structure of the liquid level sensor.

[0012] Preferably, the control unit includes a controller, a drive circuit, a power supply circuit, and a power source. The power source is electrically connected to the power supply circuit, the power supply circuit is electrically connected to the controller, and the controller is electrically connected to the drive circuit.

[0013] The solution bottle, peristaltic pump, and heating device are in a one-to-one correspondence, and the solution bottle, peristaltic pump, and heating device are in one or more groups.

[0014] The liquid cup is made of corrosion-resistant and heat-conducting material, and an insulating heating wire is attached to the outer surface of the liquid cup. The insulating heating wire is electrically connected to the control unit.

[0015] The pipeline is made of corrosion-resistant and high-temperature-resistant materials.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This enhances safety performance and temperature control reliability. The linkage between secondary heating and liquid level sensing fundamentally avoids the risk of dry burning when the pipeline is empty, ensuring safe equipment operation. Simultaneously, the orderly heat transfer through secondary heating effectively improves temperature control accuracy, reduces temperature fluctuations, and prevents abnormal solvent states or soluble matter dissolution issues caused by temperature control deviations. This ensures the integrity of insoluble matter extraction, thereby significantly improving the reliability of insoluble matter analysis results.

[0018] The accuracy and overall efficiency of the analytical process have been optimized. By leveraging the synergy of temperature sensing, heating, and liquid delivery systems, the system ensures that the liquid remains within the optimal analytical temperature range, preventing analytical deviations caused by insufficient or excessive heating. Simultaneously, the system achieves seamless integration of heating, temperature control, and liquid delivery, eliminating the problem of temperature and process disconnect and significantly improving the accuracy and operational efficiency of the entire insoluble matter analysis process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the installation structure of the heating device in a solvent processing apparatus for insoluble matter analysis according to the present invention.

[0020] Figure 2 This is a connection diagram of a solvent processing device for insoluble matter analysis according to the present invention;

[0021] Figure 3 This is a schematic diagram showing the connection relationship between the heating device, solution bottle, and peristaltic pump of a solvent processing apparatus for insoluble matter analysis according to this utility model.

[0022] In the picture:

[0023] 1. Heating device; 2. Temperature sensor; 3. Liquid level sensor; 4. Solution bottle; 5. Peristaltic pump. Detailed Implementation

[0024] Appendix Figure 1-3 The preferred embodiment of this solvent processing device for insoluble matter analysis is described in further detail below with reference to the accompanying drawings.

[0025] A solvent handling device for insoluble matter analysis includes a solution bottle 4, a peristaltic pump 5, and a liquid cup, as well as a heating device 1, a temperature sensor 2, a liquid level sensor 3, and a control unit. The solution bottle 4, peristaltic pump 5, heating device 1, and liquid cup are connected sequentially via pipelines. The liquid level sensor 3 consists of a first liquid level sensor and a second liquid level sensor, respectively installed on the pipelines connecting the upper and lower ends of the heating device 1. The temperature sensor 2 is attached to the outer side of the pipeline between the heating device 1 and the first liquid level sensor. The peristaltic pump 5, heating device 1, temperature sensor 2, and liquid level sensor 3 are all electrically connected to the control unit. The solution bottle 4, peristaltic pump 5, and heating device 1 have a one-to-one correspondence, and the device may consist of one or more sets. The pipelines are made of corrosion-resistant and high-temperature-resistant materials.

[0026] The heating device 1 is arranged in pairs, adjacent to each other. Each heating device 1 is a hollow annular heating tube with a spiral heating wire sandwiched between its outer and inner walls. The heating device 1 is connected to a controller, whose output controls its status. The inner diameter of the hollow heating device 1 is slightly larger than the outer diameter of the tube; the tube passes through the hollow interior of the heating device 1 during use. Threads are provided at both the top and bottom ends of the heating device 1 for easy fixation.

[0027] This utility model provides an embodiment in which a set of heating devices 1 are respectively threaded onto the upper and lower surfaces of a platform. The platform has threaded through holes. A pipeline extends sequentially through the hollow upper heating device 1, the through hole in the platform, and the hollow lower heating device 1, connecting to a peristaltic pump 5. The peristaltic pump 5 is connected to a solution bottle 4 via a pipeline. The upper end of the pipeline is connected to the liquid inlet of a liquid cup.

[0028] The probe of temperature sensor 2 is tightly fitted to the outer surface of the pipeline, and high-temperature resistant tape is used to fix the combination of temperature sensor 2 and pipeline. Temperature sensor 2 is located between liquid level sensor 3 and heating device 1 to detect the current temperature of the solution in the pipeline. Temperature sensor 2 acquires the current pipeline temperature and feeds the data back to the controller to form a control closed loop. It determines whether the temperature threshold has been reached. If the threshold is reached, the peristaltic pump 5 is started to inject the heated solution into the liquid cup.

[0029] The liquid level sensor 3 has a concave structure, with the groove matching the pipeline, and is fixedly mounted on the pipeline by a limiting structure. The first and second liquid level sensors 3 are positioned at a certain distance from the heating device 1 to monitor the presence of solution in the pipeline. This design prevents dry burning due to a lack of solution in the pipeline during heating, which could damage the equipment.

[0030] The control unit includes a controller, a drive circuit, a power supply circuit, and a power source. The power source is electrically connected to the power supply circuit, which in turn is electrically connected to the controller. The controller is electrically connected to the drive circuit. The drive circuit drives the peristaltic pump 5 to draw the solution and is electrically connected to both the controller and the power supply circuit. The power supply circuit supplies power to the controller, the heating device 1, and the sensor, and is electrically connected to the power supply.

[0031] The liquid cup is made of corrosion-resistant and heat-conducting material, and an insulating heating wire is attached to its outer surface. The insulating heating wire is electrically connected to the control unit. When the solution is pumped into the liquid cup by the peristaltic pump 5, the controller transmits an activation signal to turn on the insulating heating wire to keep the solution in the liquid cup warm.

[0032] This device is primarily used before the solution filtration stage. The solution is pumped into the pipeline by a peristaltic pump 5. When the first and second level sensors 3 detect the liquid level in the pipeline, they transmit the information to the controller. The controller then sends an activation signal to the heating device 1 to heat the solution in the pipeline. The heating process involves two stages: initial heating and secondary heating, accelerating the heating rate. Once the temperature sensor 2, attached to the outer wall of the pipeline, detects that the temperature has reached the threshold, it transmits the information to the controller. The controller then sends an activation signal to the peristaltic pump 5, which pumps the heated solution into the liquid cup. The insulating heating wire on the outside of the liquid cup is activated to maintain the solution's temperature.

Claims

1. A solvent handling apparatus for the analysis of insoluble substances, comprising a solution bottle (4), a peristaltic pump (5), and a liquid cup, characterized in that, It also includes a heating device (1), a temperature sensor (2), a liquid level sensor (3), and a control unit; the peristaltic pump (5), the heating device (1), the temperature sensor (2), and the liquid level sensor (3) are all electrically connected to the control unit; the solution bottle (4), the peristaltic pump (5), the heating device (1), and the liquid cup are connected in sequence through pipelines; the liquid level sensor (3) is divided into a first liquid level sensor and a second liquid level sensor, which are respectively set on the pipelines connected to the upper and lower ends of the heating device (1); the temperature sensor (2) is attached to the outer side of the pipeline between the heating device (1) and the first liquid level sensor.

2. The solvent processing apparatus for insoluble matter analysis according to claim 1, characterized in that, The heating device (1) is specifically a hollow annular heating tube with a spiral heating wire arranged in the interlayer between the outer and inner walls.

3. The solvent processing apparatus for insoluble matter analysis according to claim 2, characterized in that, The heating device (1) has threads on the top of both the upper and lower ends.

4. A solvent processing apparatus for insoluble matter analysis according to claim 3, characterized in that, The inner diameter of the hollow heating device (1) is slightly larger than the outer diameter of the pipe.

5. A solvent processing apparatus for analyzing insoluble substances according to claim 1, characterized in that, The probe of the temperature sensor (2) is in close contact with the outer surface of the pipeline, and a high-temperature resistant tape is provided around the combination of the temperature sensor (2) and the pipeline.

6. A solvent processing apparatus for analyzing insoluble substances according to claim 1, characterized in that, The liquid level sensor (3) is specifically a concave structure, with the groove matching the pipeline, and is fixedly installed on the pipeline by the limiting structure of the liquid level sensor (3).

7. A solvent processing apparatus for analyzing insoluble substances according to claim 1, characterized in that, The control unit includes a controller, a drive circuit, a power supply circuit, and a power source. The power source is electrically connected to the power supply circuit, the power supply circuit is electrically connected to the controller, and the controller is electrically connected to the drive circuit.

8. A solvent processing apparatus for analyzing insoluble substances according to claim 1, characterized in that, The solution bottle (4), peristaltic pump (5) and heating device (1) are in a one-to-one correspondence, and the solution bottle (4), peristaltic pump (5) and heating device (1) are one or more sets in the device.

9. A solvent processing apparatus for analyzing insoluble substances according to claim 1, characterized in that, The liquid cup is made of corrosion-resistant and heat-conducting material, and an insulating heating wire is attached to the outer surface of the liquid cup. The insulating heating wire is electrically connected to the control unit.

10. A solvent processing apparatus for the analysis of insoluble substances according to any one of claims 1 to 9, characterized in that, The pipeline is made of corrosion-resistant and high-temperature-resistant materials.

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