Water content analyzer

Abstract

The utility model relates to a water content analyzer, the water content analyzer comprises a control module, a heater and a distillation system, the distillation system comprises a distillation flask, a condensation pipe and a receiver which are communicated in sequence, and the control module comprises a first detection assembly and a control module, the control module is electrically connected with the first detection assembly and the heater, the first detection assembly is opposite to the condensation pipe and used for detecting the height of mist agglomerates in the condensation pipe, and the control module is used for controlling heating parameters of the heater according to detection parameters of the first detection assembly. According to the water content analyzer, the whole measurement process can be rapidly completed, the measurement efficiency is improved, errors caused by manual misoperation can be reduced, and the reliability and consistency of data are ensured.

Description

Technical Field

[0001] This application relates to the field of crude oil water content measurement technology, and in particular to a water content analyzer. Background Technology

[0002] The crude oil water content distillation method is a commonly used experimental method for determining the water content in crude oil. The basic principle is to heat a mixture of crude oil and solvent oil, causing the water to evaporate along with the solvent oil and be separated in a receiver. The volume or mass of the water is then measured. Typically, a certain amount of crude oil and solvent oil are taken and placed in a distillation apparatus. The mixture is slowly heated, allowing the water in the crude oil to gradually evaporate. The heating rate should be controlled to avoid boiling over. Part of the evaporated water and solvent oil vapor enters the graduated tube of the receiver, and part enters the condenser, where it is condensed into liquid water, which eventually flows back into the graduated tube. The condensed liquid water is collected, and its volume or mass is measured. The water content of the crude oil is calculated based on the collected water volume and the initial amount in the crude oil sample.

[0003] For example, in a specific distillation method, the distillation flask is heated, initially slowly (approximately 0.5 to 1 hour) to prevent bumping and water loss from the system. After initial heating, the boiling rate is adjusted manually by controlling the heating power to ensure the condensate level does not exceed 3 / 4 of the inner tube of the condenser. The distillate should be added dropwise to the receiver at a rate of 2 to 5 drops per second. Distillation continues until no visible water is visible anywhere in the apparatus except the receiver, and the water volume in the receiver remains constant for 5 minutes. Finally, the water volume in the receiver is read visually; the receiver's smallest graduation is 0.05 mL, and the reading should be accurate to 0.025 mL.

[0004] In this process, the height of the condensate produced in the condenser during heating is controlled by manually adjusting the heating power. That is, the boiling rate needs to be manually adjusted during the heating process so that the condensate does not exceed the height required by the standard. It is impossible to automatically control the height of the condensate. Utility Model Content

[0005] This application provides a water content analyzer to solve the problem of large heating errors caused by manual control of the heater.

[0006] This application provides a water content analyzer, including a control module, a heater, and a distillation system. The distillation system includes a distillation flask, a condenser, and a receiver connected in sequence, with the condenser, receiver, and distillation flask arranged from top to bottom. The control module includes a first detection component and a control module, which are electrically connected to both the first detection component and the heater. The first detection component is opposite to the condenser and is used to detect the height of the mist within the condenser. The control module is used to control the heating parameters of the heater based on the detection parameters of the first detection component.

[0007] According to the water content analyzer of this application, the first detection component includes a first CCD camera and a first detection light source, wherein the first CCD camera and the first detection light source are respectively disposed on both sides of the condenser tube.

[0008] Optionally, the moisture analyzer further includes a second detection component and an output module. The second detection component is opposite to the receiver to detect the liquid level in the receiver. Both the output module and the second detection component are electrically connected to the control module. The control module is used to control the output module to output corresponding result data according to the detection parameters of the second detection component.

[0009] Optionally, the output module includes at least one of an LCD display, an LED display, a USB interface, a Bluetooth module, and a WIFI module.

[0010] Optionally, the second detection component includes a second CCD camera and a second detection light source, with the second CCD camera and the second detection light source respectively located on both sides of the receiver.

[0011] Optionally, the moisture analyzer also includes a movable light shield, wherein the light shield, the first detection light source, and the second detection light source are all located on the same side, and the light shield is located outside the first detection light source and the second detection light source.

[0012] The water content analyzer according to this application further includes a cooling water circulation system, a power component, a spray assembly, and a position sensor. The condenser tube includes an inner tube and an outer tube. The inner tube is connected to both the distillation flask and the receiver. The outer tube is used to connect to the cooling water circulation system. The spray assembly is opposite to the inner tube. The power component is drivenly connected to the spray assembly to drive the spray assembly to move up and down along the inner tube. The position sensor is electrically connected to the power component to provide feedback on the position of the spray assembly.

[0013] Optionally, the spray assembly includes a nozzle, which includes a main body and a scraper connected to each other. The main body is provided with a water spray nozzle located above the scraper, and the scraper can abut against the inner wall of the inner tube.

[0014] Optionally, the outer periphery of the scraper portion is provided with a guide surface, which gradually expands outward in the direction of the downward direction of the water nozzle, and the water nozzle includes a plurality of nozzles, which are arranged circumferentially along the main body portion.

[0015] Optionally, the scraper portion is elastic and configured as a cone shape that is narrower at the top and wider at the bottom.

[0016] The technical solutions provided in this application have the following advantages compared with the prior art:

[0017] The moisture analyzer provided in this embodiment places the sample to be analyzed in a distillation flask. The sample is heated in the flask, and water, due to its low boiling point, evaporates first. After cooling in a condenser, it transforms into a liquid and is finally collected in a receiver. A control module is connected to a heater and a first detection component. The control module controls the heating parameters of the heater via electrical connection. The first detection component monitors the height of the mist in the condenser in real time. The control module can automatically adjust the heating parameters of the heater based on the mist height information detected by the first detection component. For example, if the mist height is detected as too high, the control module can control the heater to lower the heating temperature; if the mist height is detected as too low, the control module can control the heater to increase the heating temperature to ensure a balance between evaporation and condensation and prevent the mist from escaping from the condenser. In this way, by automatically optimizing the distillation efficiency through the control module, the moisture analyzer can ensure that it obtains accurate moisture content data. In summary, the moisture analyzer, through its real-time monitoring and feedback mechanism, can obtain more accurate measurement results in a shorter time, while manual operation is easily affected by subjective judgment and visual errors. Furthermore, the automatic adjustment of the heater parameters by the control module in conjunction with the first detection component reduces the need for manual intervention, enabling the entire measurement process to be completed quickly, improving measurement efficiency, and reducing errors caused by improper human operation, ensuring the reliability and consistency of data. In addition, the control module can automatically adjust the heating parameters in conjunction with the first detection component according to different experimental conditions and different experimental samples, adapting to the characteristics of different samples, thereby improving the flexibility of moisture content analysis. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Figure 1 A schematic diagram of a water content analyzer provided in an embodiment of this application;

[0022] Figure 2 A schematic diagram of liquid level detection in a receiver of a water content analyzer provided in an embodiment of this application;

[0023] Figure 3 A schematic diagram of a condenser for a water content analyzer provided in an embodiment of this application;

[0024] Figure 4 A schematic diagram of another moisture analyzer provided in an embodiment of this application;

[0025] Figure 5 A schematic diagram of the nozzle of another water content analyzer provided in an embodiment of this application;

[0026] Figure 6 This is a schematic diagram illustrating the steps of a crude oil water content detection method provided in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] Control module 1, light shield 2, first detection light source 31, second detection light source 32, condenser 4, outer tube 41, inner tube 42, peristaltic pump 5, power assembly 6, output module 7, first CCD camera 81, second CCD camera 82, receiver 9, distillation flask 10, heater 11, water 12, solvent oil 13, liquid level 14, scale 15, cooling water inlet 16, nozzle 17, main body 171, water spray nozzle 172, scraper part 173. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0031] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0032] like Figure 1 As shown, the water content analyzer according to an embodiment of this application includes a control module 1, a heater 11, and a distillation system. The distillation system includes a distillation flask 10, a condenser 4, and a receiver 9 connected in sequence. The condenser 4, the receiver 9, and the distillation flask 10 are arranged sequentially from top to bottom. The control module 1 includes a first detection component and the control module 1. The control module 1 is electrically connected to both the first detection component and the heater 11. The first detection component is opposite to the condenser 4 and is used to detect the height of the mist in the condenser 4. The control module 1 is used to control the heating parameters of the heater 11 according to the detection parameters of the first detection component.

[0033] In the above embodiment, when analyzing the moisture content of a sample, the sample to be analyzed is placed in a distillation flask 10. The sample is heated in the distillation flask 10. Due to its low boiling point, the water evaporates first. After being cooled by the condenser 4, it is converted into a liquid and finally collected in the receiver 9. The control module 1 is connected to the heater 11 and the first detection component. The control module 1 controls the heating parameters of the heater 11 through electrical connection. The first detection component is used to monitor the height of the mist in the condenser 4 in real time. The control module 1 can automatically adjust the heating parameters of the heater 11 based on the height information of the mist detected by the first detection component. For example, if the mist is detected to be too high, the control module 1 can control the heater 11 to lower the heating temperature; if the mist is detected to be too low, the control module 1 can control the heater 11 to increase the heating temperature to ensure the balance between evaporation and condensation and prevent the mist from escaping from the condenser 4. In this way, by automatically optimizing the distillation efficiency through the control module 1 and avoiding sample boiling, the moisture analyzer can obtain accurate moisture content data. In addition, the control module 1 can also have data recording and analysis functions, thereby saving experimental data and enabling subsequent analysis, which facilitates the user to analyze and statistically analyze the data parameters.

[0034] In the above embodiments, the condenser 4, receiver 9, and distillation flask 10 are arranged sequentially from top to bottom to ensure that gravity can assist the liquid evaporated from the sample after condensation to flow smoothly into the receiver 9.

[0035] The first detection component can be set on the side or top of the condenser tube 4 to ensure that the height of the fog inside the condenser tube 4 can be clearly observed. The condenser tube 4 corresponding to the field of view position of the first detection component can be set to have an observation window or be made of transparent material to facilitate visual detection.

[0036] It is understood that the first detection component can be configured in various ways. For example, the first detection component may include a camera module to acquire images inside the condenser tube 4 and analyze the height of the fog using image processing algorithms. Alternatively, the first detection component may include an infrared sensor to utilize the principle of infrared reflection, setting up an infrared emitter and receiver to measure the scattering or absorption of infrared light by the fog, thereby calculating the height of the fog. It may also include a laser rangefinder sensor to measure the height of the fog using laser ranging technology. Of course, the first detection component may also include a photoelectric sensor, which, by installing an illumination light source and a photosensitive element, detects the degree to which the fog blocks light, thereby determining the height of the fog. These are just examples; this application is not exhaustive.

[0037] In some embodiments, the first detection component is also connected to a first position adjustment mechanism, which adjusts the position of the first detection component to adjust the position or observation angle of the first detection component according to different experimental requirements, thereby ensuring that the first detection component can accurately detect the height of the fog.

[0038] The heater 11 is generally located at or around the bottom of the distillation flask 10 to ensure uniform and efficient heating, providing surround heating to the bottom or surrounding area of ​​the distillation flask 10. The heater 11 can employ structures such as heating wires, heating plates, or heating films to heat the distillation flask 10.

[0039] According to the water content analyzer of this application embodiment, the water content analyzer can obtain more accurate measurement results in a shorter time through a real-time monitoring and feedback mechanism, while manual operation is easily affected by subjective judgment and visual errors. Moreover, by automatically adjusting the heating parameters of the heater 11 in conjunction with the control module 1 and the first detection component, the need for manual intervention is reduced, the entire measurement process can be completed quickly, the measurement efficiency is improved, and errors caused by improper human operation are reduced, ensuring the reliability and consistency of the data. In addition, the control module 1 can automatically adjust the heating parameters in conjunction with the first detection component according to different experimental conditions and different experimental samples, adapting to the characteristics of different samples, thereby improving the flexibility of water content analysis.

[0040] like Figure 1 As shown, in the water content analyzer according to the embodiment of this application, the first detection component includes a first CCD camera 81 and a first detection light source 31, which are respectively disposed on both sides of the condenser tube 4.

[0041] In detail, the first detection component includes a first CCD camera 81, which monitors the height of the fog cloud. The high resolution of the CCD camera allows for better identification and measurement of minute changes in the fog cloud, improving detection accuracy. Simultaneously, the acquired images have lower noise, resulting in clearer and more accurate images, reducing the possibility of misjudgment. Positioning the first CCD camera 81 on the side of the condenser tube 4 allows for better capture of changes in the fog cloud height within the condenser tube 4, improving the sensitivity and real-time performance of the first CCD camera's visual detection, facilitating timely adjustment of heating parameters by the control module 1. Furthermore, positioning the first CCD camera 81 and the first detection light source 31 on opposite sides of the condenser tube 4 ensures uniform illumination of the sample within the condenser tube 4, reducing the influence of shadows and reflections, thereby improving detection accuracy.

[0042] In some embodiments, the light emission direction of the first detection light source 31 is perpendicular to the extension direction of the condenser tube 4.

[0043] In detail, the setting of the first detection light source 31 perpendicular to the condenser tube 4 allows the light to be more evenly irradiated onto the fog inside the condenser tube 4, thereby improving the visibility of the fog and the accuracy of detection, and obtaining the height information of the fog more clearly. At the same time, this setting can reduce the influence of the condenser tube 4 on light reflection and scattering, and improve the signal-to-noise ratio of the detection.

[0044] Currently, the smallest graduation on the receiver scale in the standard is 0.05 mL, and the liquid level is read by the human eye, which can only resolve to 0.025 mL, resulting in low measurement accuracy. Therefore, there is an urgent need for more precise control and measurement devices and methods to detect the water content in crude oil.

[0045] In some embodiments, the water content analyzer further includes a second detection component and an output module 7. The second detection component is opposite to the receiver 9 to detect the liquid level in the receiver 9. Both the output module 7 and the second detection component are electrically connected to the control module 1. The control module 1 is used to control the output module 7 to output corresponding result data according to the detection parameters of the second detection component.

[0046] In the above embodiment, the second detection component is positioned opposite the receiver 9 to detect the liquid level within the receiver 9, thereby determining the volume of liquid after distillation. This allows the control module 1 to analyze and calculate the water content of the sample based on the volume of distilled liquid. The second detection component can monitor changes in the liquid level within the receiver 9 in real time, ensuring the stability and safety of the experimental process. Simultaneously, the data from the second visual detection module is more accurate, improving the accuracy of the experimental structure and reducing human error. Furthermore, the second detection component works in conjunction with the control module 1 to control the heater 11, thereby achieving automated control of the heating of the distillation flask 10. For example, when the liquid level remains constant within a certain time period, heating of the distillation flask 10 is stopped to prevent overflow or dry burning. The data detected by the second visual detection module can be used for subsequent data analysis and recording, facilitating the tracking and comparison of experimental results.

[0047] like Figure 2 As shown, in the above embodiment, liquid level 14 refers to the liquid level of water 12. Since some solvent oil 13 is often added during the distillation of the sample, both solvent oil 13 and water 12 are distilled and finally enter the receiver 9 and are separated into layers. Water 12 is located below solvent oil 13, and its height corresponds to the scale 15 of the receiver 9, which is the liquid level height that needs to be determined.

[0048] The output module 7 can output the result data generated by the control module 1 based on the parameters detected by the second detection component. For example, the output module 7 can be configured as an LCD or LED display screen to display parameters such as liquid level and water content in real time; the output module 7 can also be configured as a USB interface, Bluetooth or WIFI module to facilitate data export and remote monitoring, such as connecting to the user's mobile phone, computer and iPad for data transmission, etc., and this application does not impose any limitations.

[0049] like Figure 1 As shown, in some embodiments, the second detection component includes a second CCD camera 82 and a second detection light source 32, with the second CCD camera 82 and the second detection light source 32 respectively disposed on both sides of the receiver 9.

[0050] In detail, the second CCD camera 82 can more accurately capture changes in the liquid level within the receiver 9. Combined with the auxiliary illumination from the second detection light source 32, it reduces interference from external light on the images acquired by the second CCD camera 82, improving the accuracy and reliability of liquid level detection and avoiding errors caused by human observation. Simultaneously, the second detection component can monitor changes in the liquid level within the receiver 9 in real time, allowing the control module 1 to react promptly, adjusting the heating temperature of the heater 11 or stopping the heater 11 to ensure the stability and efficiency of the distillation process. Positioning the second CCD camera 82 on the side of the condenser tube 4 allows for better observation of changes in the liquid level within the receiver 9, enhancing the sensitivity and real-time performance of the second CCD camera 82's visual detection, facilitating timely adjustments of heating parameters by the control module 1. Furthermore, placing the second CCD camera 82 and the second detection light source 32 on opposite sides of the condenser tube 4 ensures uniform illumination of the sample within the condenser tube 4, reducing the effects of shadows and reflections, thereby improving detection accuracy.

[0051] In some embodiments, the light emission direction of the second detection light source 32 is perpendicular to the extension direction of the receiver 9.

[0052] In detail, the setting of the second detection light source 32 perpendicular to the receiver 9 allows the light to be more evenly irradiated onto the liquid level inside the receiver 9, thereby improving the visibility of the liquid level and the accuracy of detection, and obtaining the height information of the liquid level more clearly. At the same time, this setting can reduce the influence of the receiver 9 on light reflection and scattering, and improve the signal-to-noise ratio of the detection.

[0053] It should be noted that when reading the liquid level in receiver 9, the lowest scale of the liquid level depression should be the water level of the condensate.

[0054] like Figure 1As shown, in some embodiments, the moisture analyzer also includes a movable light shield 2, the light shield 2, the first detection light source 31 and the second detection light source 32 are all located on the same side, and the light shield 2 is located outside the first detection light source 31 and the second detection light source 32.

[0055] In detail, the light shield 2 can effectively isolate ambient light and reduce the impact of light source changes on the first and second detection components. This reduces light interference, improves the signal-to-noise ratio of the first and second detection components, and thus improves the accuracy and reliability of the measurement. At the same time, under different ambient lighting conditions, the light shield 2 can maintain the stability of the system and avoid errors caused by changes in lighting.

[0056] In the above embodiments, the light-shielding plate 2 can be made of an opaque material, such as black plastic or metal, to provide good light-shielding effect. In terms of shape, it can be a rectangular or circular plate structure, allowing for specific adjustments based on the positions of the first and second detection components, as well as the positions of the first detection light source 31 and the second detection light source 32. To facilitate adaptive adjustment of the light-shielding plate 2, it can be configured as a movable structure. This can be achieved by using a slide rail, allowing the light-shielding plate 2 to slide on the rail to adjust its position; alternatively, a motor can be used, with the control module 1 controlling the automatic movement of the light-shielding plate 2.

[0057] like Figure 1 , Figure 3 as well as Figure 4 As shown, the water content analyzer according to the embodiment of this application further includes a cooling water circulation system, a power component 6, a spray component, and a position sensor. The condenser tube 4 includes an inner tube 42 and an outer tube 41. The inner tube 42 is connected to both the distillation flask 10 and the receiver 9. The outer tube 41 is used to connect to the cooling water circulation system. The spray component is opposite to the inner tube 42. The power component 6 is drivenly connected to the spray component to drive the spray component to move up and down along the inner tube 42. The position sensor is electrically connected to the power component 6 to provide feedback on the position of the spray component.

[0058] In detail, the outer tube 41 is used to connect to the cooling water circulation system. A pump allows cooling water to enter and exit the outer tube 41. The inner tube 42 receives the mist from the distillation flask 10, which is then condensed by the cooling water and collected in the receiver 9. When water droplets continuously accumulate on the wall of the inner tube 42 and cannot drip into the receiver 9, the power unit 6 drives the spraying assembly to move up and down along the inner tube 42, spraying solvent to wash the solvent from the wall of the inner tube 42 into the distillation flask 10 for further distillation. During solvent spraying, heating needs to be stopped for a certain period, such as 15 min, 16 min, 17 min, 18 min, 19 min, 20 min, 25 min, and 30 min.

[0059] In one specific embodiment, an oil-soluble demulsifier is added to the solvent washing solution at a volume fraction of 1000 x 10e-6 to help remove water droplets adhering to the wall of the inner tube 42. After rinsing, the heater 11 is controlled to distill for at least 5 minutes, and the distillation flask 10 is slowly heated to prevent bumping.

[0060] In the above embodiments, the position sensor is mainly used to monitor the position of the spray assembly. This allows the position sensor to feed back the position of the spray assembly to the power assembly 6. The position sensor and the power assembly 6 can be directly electrically connected, or both can be electrically connected to the control module 1. This allows the control module 1 to adjust the position of the spray assembly based on real-time feedback, ensuring that the spray assembly effectively covers the entire area of ​​the inner tube 42 during spraying operations, thereby improving the efficiency of distillation and condensation. Simultaneously, the position sensor also ensures that the spray assembly does not move to an unsuitable position, thus preventing damage to the equipment.

[0061] In the above embodiments, the power component 6 includes at least an electric motor and a transmission mechanism. In this way, the electric motor can provide power for the movement of the spray component, and the transmission mechanism can convert the rotational motion of the electric motor into the up-and-down movement of the spray component. The transmission mechanism usually includes structures such as gears, pulleys, and chains, and the corresponding structure can be set as needed.

[0062] like Figure 3 As shown, in the above embodiments, the cross-sectional shape of the inner tube 42 is generally cylindrical or elliptical to facilitate the flow of gas and liquid. The cross-sectional shape of the outer tube 41 is generally cylindrical or elliptical. The inner tube 42 is inserted into the outer tube 41. Both the inner tube 42 and the outer tube 41 should be made of corrosion-resistant materials. In addition, the outer tube 41 should also be provided with an inlet and an outlet to facilitate the flow of cooling water.

[0063] In some embodiments, the spray assembly includes a nozzle 17, which includes a main body portion 171 and a scraper portion 173 connected to each other. The main body portion 171 is provided with a water nozzle 172, which is located above the scraper portion 173. The scraper portion 173 can abut against the inner wall of the inner tube 42.

[0064] In detail, the scraper section 173, through contact with the inner wall of the inner tube 42, can effectively remove water droplets adhering to the inner wall, allowing these water droplets to return to the distillation flask 10 for redistillation, thus improving the accuracy of water content detection. The scraper section 173 can be configured as a flat or curved shape to ensure good contact with the inner wall of the inner tube 42. The spray nozzle 172 is located above the scraper section 173, so that when water is sprayed, the liquid flow can be used to flush the scraper section 173, and the scraper plate further assists the liquid flow to fully contact the circumferential surface of the inner wall of the inner tube 42, thereby achieving a thorough cleaning effect on the condensate.

[0065] In some embodiments, the peristaltic pump 5 is connected to the nozzle 172 to drive the solvent to flow out of the nozzle 172.

[0066] like Figure 5 As shown, in some embodiments, the outer periphery of the scraper portion 173 is provided with a guide surface, which gradually expands outward in the direction of downward spray nozzle 172. The spray nozzle 172 includes a plurality of nozzles, which are arranged circumferentially along the main body portion 171.

[0067] Specifically, the guide surface helps guide the solvent to the scraper section 173, thereby cooperating with the physical scraping of the scraper section 173 to clean the condensate on the inner wall of the inner tube 42. The guide surface can slow down the flow rate of the solvent, making the liquid flow more stable, thus ensuring full contact with the condensate on the inner wall of the inner tube 42 and reducing the retention of condensate on the inner tube 42 wall. Multiple spray nozzles 172 are arranged circumferentially along the main body 171, so that the water sprayed from the nozzles 172 can cover the entire contact surface between the scraper section 173 and the inner wall of the inner tube 42, thereby achieving a better water droplet collection effect.

[0068] The guide surface can be a concave arc surface, a convex arc surface, or an inclined plane.

[0069] It should be noted that in the above embodiments, during the process of the scraper part 173 contacting the wall surface of the inner tube 42, the water spray nozzle 172 is not always open. It is also possible that the water spray nozzle 172 is not open, and the physical scraping action of the scraper part 173 alone helps to collect the condensate into the receiver 9.

[0070] like Figure 5 As shown, the scraper portion 173 is elastic and is configured as a cone shape that is narrower at the top and wider at the bottom, so that the scraper portion 173 can be deformed to better fit the inner tube 42.

[0071] like Figure 6 As shown, the crude oil water content detection method according to an embodiment of this application uses the above-mentioned water content analyzer and includes:

[0072] Step S10: Heat the sample to be tested and monitor the height of the fog in the condenser tube 4 in real time;

[0073] Step S20: Control the heating temperature of the sample to be tested according to the height of the fog cloud;

[0074] Step S30: When the height of the fog cloud meets the first preset range, the liquid level in the receiver 9 is detected in real time;

[0075] Step S40: When the liquid level is constant within the first preset time, stop heating the sample to be tested;

[0076] Step S50: After cooling the sample to be tested for a second preset time, the sample to be tested is reheated and the liquid level in the receiver 9 is monitored in real time. This process is repeated several times until the liquid level is constant within a first preset time. Then, heating of the sample to be tested is stopped.

[0077] Step S60: After the receiver 9 has cooled for a third preset time, obtain the height of the liquid level in the receiver 9.

[0078] In step S10, the control module 1 controls the heater 11 to heat the sample to be tested in the distillation flask 10, and detects the height of the fog in the condenser 4 in real time through the first detection component. When initially heating the distillation flask 10, the heater 11 controls the distillation flask 10 to heat it slowly for about 0.5h to 1h to prevent boiling over and loss of moisture from the sample to be tested. For example, in a specific embodiment, the condenser 4 includes an inner tube 42 and an outer tube 41. The fog should not be higher than 3 / 4 of the height of the inner tube 42 of the condenser 4. In order to make the fog easy to condense, the fog should be kept at a height approximately the same as that of the cooling water inlet 16.

[0079] After initial heating, the distillate should be dripped into receiver 9 at a rate of 2–5 drops per second. Real-time monitoring of the fog height helps to monitor and determine changes in moisture content in the sample, thereby improving the accuracy of the detection.

[0080] In step S20, the control module 1 controls the heating parameters of the heater 11 based on the height of the fog cloud detected by the first detection component, thereby controlling the heating temperature of the sample to be tested and preventing sample boiling. For example, in a specific embodiment, the condenser tube 4 includes an inner tube 42 and an outer tube 41, which monitors the height of the fog cloud to ensure that the height of the fog cloud does not exceed 50 mm of the height of the inlet of the inner tube 42. This enables dynamic adjustment of sample heating, helping to ensure that the sample is analyzed under optimal testing conditions, thereby improving the accuracy of the detection.

[0081] In step S30: When the measured height of the fog cloud meets the first preset range, the control module 1 controls the second detection component to detect the liquid level height in the receiver 9 in real time, thereby ensuring that the liquid level height is measured under appropriate conditions and avoiding measurement errors caused by residual moisture.

[0082] The first preset range can be set as needed.

[0083] In step S40, when the control module 1 determines that the liquid level remains constant within a first preset time based on the liquid level height measured by the second detection component, it controls the heater 11 to stop heating the sample to be tested. This ensures data reliability by confirming the stability of the liquid level height.

[0084] Before using the second detection component to determine the liquid level height of receiver 9, the scale of receiver 9 needs to be calibrated to determine the number of pixels between two scale lines, thereby determining the liquid level height corresponding to each pixel. The calibration result of the scale line is recorded in control module 1. Then, when using the second detection component to determine the liquid level height, the pixel of the lowest point of the concave liquid surface is read, and the number of pixels corresponding to the actual liquid level is identified to determine the actual liquid level height.

[0085] The first preset time can be 5 min, 6 min, 7 min, 8 min, 9 min, 10 min, 15 min, or 20 min.

[0086] It should be noted that if the liquid level in receiver 9 is not constant within the first preset time, step S30 is repeated until the liquid level in receiver 9 is constant within the first preset time.

[0087] In step S50, after cooling the sample for a second preset time, the control module 1 controls the heater 11 to reheat the sample. When the control module 1 determines, based on the liquid level height measured by the second detection component, that the liquid level height remains constant within a first preset time, the control module 1 stops heating the sample. This process is repeated several times as needed. This allows for more comprehensive acquisition of the sample's moisture content information, improving detection accuracy. Simultaneously, the data from each measurement can be analyzed and evaluated to avoid errors and ensure the reproducibility of the results.

[0088] In one specific embodiment, the above process can be repeated twice, that is, heating twice until the liquid level in the receiver 9 reaches a constant within a first preset time.

[0089] The second preset time can be a time value set according to different samples, such as 15min, 16min, 17min, 18min, 19min, 20min, 25min, and 30min.

[0090] In step S60, after cooling, the liquid level height measured by the second detection component can be used as the final water content data, further improving the stability of the measurement results.

[0091] In some embodiments, when the water content analyzer includes a spray assembly and the condenser 4 includes an inner tube 42 and an outer tube 41,

[0092] After the sample to be tested has been cooled for a second preset time, the spray assembly is controlled to move in the inner tube 42 and spray solvent.

[0093] In the above steps, after the sample to be tested has been cooled for a second preset time, the control module 1 controls the spraying assembly to move in the inner tube 42 and spray the solvent, which can effectively reduce the residue of condensate on the inner tube 42.

[0094] In some embodiments, when the height of the fog cloud meets a first preset range, real-time detection of the liquid level height in the receiver 9 specifically includes:

[0095] Step S32: Acquire the monitoring image of receiver 9, and select the liquid level recognition area in the monitoring image;

[0096] Step S34: Perform grayscale processing on the image of the liquid level recognition area;

[0097] Step S36: Determine the location of the target pixel with a grayscale value of 0 or 255;

[0098] Step S38: Determine the position of the target pixel as the liquid level height.

[0099] In step S32, the control module 1 acquires the monitoring image of the receiver 9 through the second detection component, and selects the liquid level recognition area in the monitoring image. This area is the area where the liquid level may change. In this way, the amount of calculation in subsequent processing can be reduced, the detection efficiency can be improved, and interference factors can be avoided to ensure the accuracy of liquid level detection.

[0100] In step S34, the control module 1 performs grayscale processing on the image of the liquid level recognition area. This only requires processing single-channel data and can also emphasize the edge features of the liquid surface and the liquid, which is helpful for subsequent threshold processing.

[0101] In step S36, the liquid surface will present a specific gray value in the grayscale image, such as 0 or 255. The control module 1 can identify these gray values ​​to determine the position of the liquid level. Since 0 or 255 represents the extreme brightness in the grayscale image (0 represents black and 255 represents white), it can correspond to the interface between liquid and air, so the liquid level can be accurately located. In this way, by selecting extreme values, the error caused by factors such as changes in illumination is reduced.

[0102] In step S38, the control module 1 determines the corresponding liquid level height based on the position of the target pixel found in step S36 and the result of pixel calibration. In this way, liquid level information can be directly extracted from the image, enabling rapid real-time monitoring. At the same time, through automated image processing methods, manual intervention is reduced, and the system stability of the water content analyzer is improved.

[0103] An electronic device according to an embodiment of this application includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; wherein: the memory is used to store computer programs; and the processor is used to execute the above-described crude oil water content detection method by running the program stored in the memory.

[0104] The memory can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to a crude oil water content detection method in this application embodiment. The processor executes various functional applications and data processing by running the computer program stored in the memory, thereby implementing the above-described method. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include memory remotely located relative to the processor, and these remote memories can be connected to the computer via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0105] A transmission device is used to receive or send data over a network. Specific examples of such networks may include wireless networks provided by a computer's communications provider. In one example, the transmission device includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet.

[0106] In one example, the transmission device could be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0107] In some embodiments, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0108] According to an embodiment of this application, the storage medium includes a stored program, wherein the program executes the above-described crude oil water content detection method when it runs.

[0109] In some embodiments, the storage medium described above may include, but is not limited to, various media capable of storing computer programs, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0110] A computer may include one or more processors (processors may include, but are not limited to, processing devices such as microprocessors (MCUs) or programmable logic devices (FPGAs)) and a memory for storing data. In some embodiments, the computer may also include transmission devices for communication functions and input / output devices.

[0111] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “” used herein may also indicate the inclusion of the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated, unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0112] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0113] The above are merely specific embodiments of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model. Therefore, this utility model is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A moisture content analyzer, characterized in that, The device includes a control module, a heater, and a distillation system. The distillation system includes a distillation flask, a condenser, and a receiver connected in sequence, arranged from top to bottom. The control module includes a first detection component and a control module, which are electrically connected to both the first detection component and the heater. The first detection component is positioned opposite the condenser to detect the height of the mist within the condenser. The control module controls the heating parameters of the heater based on the detection parameters of the first detection component.

2. The moisture analyzer according to claim 1, characterized in that, The first detection component includes a first CCD camera and a first detection light source, which are respectively located on both sides of the condenser tube.

3. The moisture analyzer according to claim 2, characterized in that, It also includes a second detection component and an output module. The second detection component is opposite to the receiver to detect the liquid level in the receiver. Both the output module and the second detection component are electrically connected to the control module. The control module is used to control the output module to output corresponding result data according to the detection parameters of the second detection component.

4. The moisture analyzer according to claim 3, characterized in that, The output module includes at least one of an LCD display, an LED display, a USB interface, a Bluetooth module, and a WIFI module.

5. The moisture analyzer according to claim 3, characterized in that, The second detection component includes a second CCD camera and a second detection light source, which are respectively located on both sides of the receiver.

6. The moisture analyzer according to claim 5, characterized in that, It also includes a movable light shield, wherein the light shield, the first detection light source and the second detection light source are all located on the same side, and the light shield is located outside the first detection light source and the second detection light source.

7. The moisture analyzer according to claim 1, characterized in that, It also includes a cooling water circulation system, a power unit, a spray assembly, and a position sensor. The condenser tube includes an inner tube and an outer tube. The inner tube is connected to both the distillation flask and the receiver. The outer tube is used to connect to the cooling water circulation system. The spray assembly is opposite to the inner tube. The power unit is driven to the spray assembly to drive the spray assembly to move up and down along the inner tube. The position sensor is electrically connected to the power unit to provide feedback on the position of the spray assembly.

8. The moisture analyzer according to claim 7, characterized in that, The spray assembly includes a nozzle, which includes a main body and a scraper connected to each other. The main body is provided with a water spray nozzle, which is located above the scraper. The scraper can abut against the inner wall of the inner tube.

9. The moisture analyzer according to claim 8, characterized in that, The outer periphery of the scraper section is provided with a guide surface, which gradually expands outward in the direction of the downward direction of the water nozzle. The water nozzle includes multiple nozzles, which are arranged circumferentially along the main body.

10. The moisture analyzer according to claim 8, characterized in that, The scraper section is elastic and is designed as a cone shape that is narrower at the top and wider at the bottom.

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