Hydrocarbon gas dew point detection system

Abstract

The invention discloses a hydrocarbon gas dew point detection system, the hydrocarbon gas dew point detection system comprises an intelligent processor, a power supply module and a fan, the power supply module is connected with the intelligent processor and the fan, and the power supply module controls the fan to open or close; the intelligent processor is connected with the optical emitter control circuit, and the optical emitter control circuit controls the optical emitter to emit a spectrum with a specific wavelength or wavelength range; the intelligent processor is connected with the temperature measuring circuit, and the temperature measuring circuit receives a temperature signal of the platinum resistor and transmits the temperature signal to the intelligent processor for calculation; light beams emitted by the optical emitter are reflected by the mirror reflector and received by the optical receiver, and the optical receiver transmits detection signals to the intelligent processor to be analyzed and processed. The hydrocarbon gas dew point detection system provided by the invention can accurately capture tiny changes during condensation of hydrocarbon gas, and realizes accurate measurement of the amount of condensate, so that the accuracy of hydrocarbon gas dew point measurement is improved, and the operation process is simplified.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent analysis products, and in particular relates to a hydrocarbon gas dew point detection system. Background Art

[0002] In the petroleum, chemical, natural gas and other industries, the dew point measurement of hydrocarbon gas is an important link to ensure product quality, process safety and environmental protection. The chilled mirror method is one of the most widely used hydrocarbon dew point test methods. Its basic principle is to cool the mirror to a predetermined temperature so that the water vapor or hydrocarbon components in the measured gas condense on the mirror surface, and the dew point temperature is determined by observing the condensation phenomenon.

[0003] However, for hydrocarbon gases, due to their low surface tension and colorless transparency during condensation, the traditional cold mirror method is difficult to directly observe the formation and changes of the condensate layer, which in turn affects the accuracy of the measurement. In addition, the traditional cold mirror method also has problems such as complex equipment, cumbersome operation, and high maintenance cost, which limits its wide application in the industrial field.

[0004] Therefore, there is an urgent need to design a hydrocarbon gas dew point detection system to solve the above-mentioned problem of hydrocarbon gas dew point measurement. Summary of the invention

[0005] In order to solve the technical problem mentioned in the background technology that the surface tension of the condensate is low and it is colorless and transparent, the traditional cold mirror method is difficult to directly observe the formation and changes of the condensate layer, which in turn affects the accuracy of the measurement, a hydrocarbon gas dew point detection system is provided to solve the problem of dew point measurement of hydrocarbon gas.

[0006] To achieve the above objectives, the specific technical solution of the hydrocarbon gas dew point detection system of the present invention is as follows: A hydrocarbon gas dew point detection system comprises an intelligent processor, a power module and a fan, wherein the power module is connected to the intelligent processor and the fan, and controls the fan to be turned on or off; the intelligent processor is connected to an optical transmitter control circuit, and the optical transmitter control circuit controls the optical transmitter to emit a spectrum of a specific wavelength or a wavelength range; the intelligent processor is connected to a temperature measurement circuit, and the temperature measurement circuit receives a temperature signal from a platinum resistor, and the temperature measurement circuit transmits the temperature signal to the intelligent processor for calculation; the light beam emitted by the optical transmitter is reflected by a mirror reflector and received by an optical receiver, and the optical receiver transmits the detection signal to the intelligent processor for analysis and processing.

[0007] Furthermore, the optical receiver is connected to an optical receiver detection circuit, and the optical receiver detection circuit transmits the detection signal to the intelligent processor for analysis and processing.

[0008] Furthermore, the intelligent processor is connected to the refrigeration circuit, and the intelligent processor controls the refrigeration circuit to perform refrigeration control on the mirror cooler.

[0009] Furthermore, the mirror cooler contacts the radiator for heat exchange, and the radiator is cooled by a fan for heat dissipation.

[0010] Furthermore, the mirror cooler is in contact with the heat sink, and the fan is located on a side of the heat sink far away from the mirror cooler.

[0011] Furthermore, a platinum resistor is provided in the mirror reflector, the platinum resistor transmits the temperature signal to the temperature measuring circuit, the temperature measuring circuit transmits the temperature signal to the intelligent processor, and the intelligent processor controls the mirror cooler to perform cooling through the refrigeration circuit.

[0012] Furthermore, the optical transmitter and the optical receiver are spaced apart and arranged above the mirror reflector, and the side of the mirror reflector close to the optical transmitter and the optical receiver is a concave mirror surface.

[0013] Furthermore, a circular cavity is provided at the center of the concave mirror surface, and the concave mirror surface is polished to reduce reflectivity.

[0014] Furthermore, when the mirror reflector is in a dry state, the optical transmitter and the optical receiver are turned on, and the light beam focus position and the receiving angle of the optical receiver are adjusted so that the optical receiver receives a stable basic signal, and the light intensity distribution at this time is recorded as a calibration reference.

[0015] Furthermore, the gas to be measured is introduced, the mirror cooler is started to cool the mirror reflector, and the optical transmitter and optical receiver are turned on to monitor the changes in the reflected light in real time; when it is observed that the reflected light forms a halo and the intensity of the scattered light in the middle black spot area is significantly reduced, the temperature value and light intensity change data at this time are recorded.

[0016] The hydrocarbon gas dew point detection system of the present invention has the following advantages: Through specially designed mirror structures and optical detection methods, it is possible to accurately capture the slight changes in hydrocarbon gas condensation and achieve accurate measurement of the amount of condensate, thereby improving the accuracy of hydrocarbon gas dew point measurement. It does not need to rely on naked eye observation or complex equipment, and can be automatically measured only through optical detectors, greatly simplifying the operation process. This application uses a simple mirror structure and optical detection elements, and the equipment cost and maintenance cost are relatively low, which is conducive to promotion and application in the industrial field. It is not only suitable for the dew point measurement of hydrocarbon gases, but can also be extended to other gas measurement fields with similar characteristics, and has strong versatility and applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the hydrocarbon gas dew point detection system of the present invention; Figure 2 It is a schematic diagram of the principle of the mirror reflector of the hydrocarbon gas dew point detection system of the present invention.

[0018] Description of the markings in the figure: 1. Intelligent processor; 2. Optical transmitter; 3. Optical transmitter control circuit; 4. Mirror reflector; 5. Platinum resistor; 6. Temperature measurement circuit; 7. Refrigeration circuit; 8. Mirror cooler; 9. Radiator; 10. Fan; 11. Optical receiver; 12. Optical receiver detection circuit; 13. Power module; 14. Concave mirror; 15. Circular cavity. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0021] Please refer to the attached Figure 1 and attached Figure 2 A hydrocarbon gas dew point detection system of the present invention is described.

[0022] like Figure 1 As shown, the hydrocarbon gas dew point detection system in the present invention includes an intelligent processor 1, a power module 13 and a fan 10, the power module 13 is connected to the intelligent processor 1 and the fan 10, and the power module 13 controls the fan 10 to be turned on or off; the intelligent processor 1 is connected to the optical transmitter control circuit 3, and the optical transmitter control circuit 3 controls the optical transmitter 2 to emit a spectrum of a specific wavelength or a wavelength range; the intelligent processor 1 is connected to the temperature measurement circuit 6, the temperature measurement circuit 6 receives the temperature signal of the platinum resistor 5, and the temperature measurement circuit 6 transmits the temperature signal to the intelligent processor 1 for calculation; the light beam emitted by the optical transmitter 2 is reflected by the mirror reflector 4 and received by the optical receiver 11, and the optical receiver 11 transmits the detection signal to the intelligent processor 1 for analysis and processing.

[0023] Through specially designed mirror structures and optical detection methods, it is possible to accurately capture the slight changes in hydrocarbon gas condensation and achieve accurate measurement of the amount of condensate, thereby improving the accuracy of hydrocarbon gas dew point measurement. It does not need to rely on naked eye observation or complex equipment, and can be automatically measured only through optical detectors, greatly simplifying the operation process. This application uses a simple mirror structure and optical detection elements, and the equipment cost and maintenance cost are relatively low, which is conducive to promotion and application in the industrial field. It is not only suitable for the dew point measurement of hydrocarbon gases, but can also be extended to other gas measurement fields with similar characteristics, and has strong versatility and applicability.

[0024] Further, if Figure 1 As shown, the optical receiver 2 is connected to the optical receiver detection circuit 3, and the optical receiver detection circuit 3 transmits the detection signal to the intelligent processor 1 for analysis and processing; the intelligent processor 1 is connected to the refrigeration circuit 7, and the intelligent processor 1 controls the refrigeration circuit 7 to perform refrigeration control on the mirror cooler 8; the mirror cooler 8 contacts the radiator 9 for heat exchange, and the radiator 9 is air-cooled by the fan 10.

[0025] In this embodiment, preferably, the optical emitter 2 is capable of emitting a spectrum of a specific wavelength or wavelength range, has good light-concentrating properties, and has good stability and stable continuous luminescence performance.

[0026] The optical receiver 11 adopts a specific optical detection method, has high sensitivity and fast response characteristics, can perform real-time detection and dynamic monitoring of tiny optical changes, and has high selectivity, and can detect and analyze spectra of specific wavelengths or wavelength ranges, thereby reducing the impact of interference signals.

[0027] During the measurement process, a calibrated visible red light beam is first focused on the central area of ​​the mirror. When the medium to be measured is in a dry state, the incident red light beam is dispersed from the matte mirror surface to form a certain light intensity distribution, which serves as the basic signal of the optical receiver 11.

[0028] As the radiator 9 cools the mirror reflector 4, the conical concave surface is gradually cooled to a predetermined temperature, and the hydrocarbon components in the measured gas begin to condense on the mirror surface to form a condensation layer. Since the condensation layer has low surface tension and is colorless and transparent, its existence will change the reflection characteristics of the light beam, which is specifically manifested in that the reflected light forms a halo around the optical receiver, while the scattered light intensity in the middle black spot area is significantly reduced.

[0029] Further, if Figure 1 and Figure 2As shown, the mirror cooler 8 is abutted against the radiator 9, and the fan 10 is located on the side of the radiator 9 far away from the mirror cooler 8; a platinum resistor 5 is provided in the mirror reflector 4, and the platinum resistor 5 transmits the temperature signal to the temperature measuring circuit 6, and the temperature measuring circuit 6 transmits the temperature signal to the intelligent processor 1, and the intelligent processor 1 controls the mirror cooler 8 to cool through the cooling circuit 7; the optical transmitter and the optical receiver are arranged at intervals above the mirror reflector, and the mirror reflector 4 is close to the optical transmitter 2 and the optical receiver 11. The side is a concave mirror 14.

[0030] In this embodiment, preferably, the optical transmitter 2 is installed at a fixed position inside the analyzer, and the emitted light is directed toward the mirror reflector 4, and the mirror reflector 4 propagates the light at a specific angle and intensity. The optical receiver 11 is installed on the opposite side of the optical transmitter 2, and can effectively receive the position of the light reflected from the cold mirror, so as to detect the change of the intensity, wavelength and other characteristics of the reflected light, thereby judging whether the dew point is reached on the cold mirror and the accurate value of the dew point.

[0031] Further, if Figure 1 As shown, a circular hole 15 is provided at the center of the concave mirror surface 14, and the concave mirror surface 14 is polished to reduce the reflectivity; when the mirror reflector 4 is dry, the optical transmitter 2 and the optical receiver 11 are turned on, and the light beam focus position and the receiving angle of the optical receiver 11 are adjusted so that the optical receiver 11 receives a stable basic signal, and the light intensity distribution at this time is recorded as a calibration reference; the measured gas is introduced, the mirror cooler 8 is started to cool the mirror reflector 4, and the optical transmitter 2 and the optical receiver 11 are turned on to monitor the changes in the reflected light in real time; when it is observed that the reflected light forms a halo and the astigmatism intensity in the middle black spot area is significantly reduced, the temperature value and light intensity change data at this time are recorded.

[0032] In this embodiment, preferably, the mirror reflector 4 is made of matte stainless steel material, and the surface is specially treated to reduce the reflectivity and reduce the interference of ambient light. The central part of the mirror is designed as a conical concave surface, and a circular hole 15 is provided in the center of the concave surface to facilitate the discharge of impurities, and an optical detector and a beam focusing device are installed.

[0033] Preferably, the intelligent processor 1 adopts an efficient intelligent algorithm and has self-learning ability. Through large-scale data training and learning, it can explore potential rules and knowledge, continuously optimize its own performance and output results, and has adaptive capabilities. It has a certain tolerance for noise, missing values ​​and outliers in the input data, and can still maintain a certain performance and accuracy when the data quality is not high or there is interference.

[0034] The intelligent processor 1 has parallel processing capabilities, and adopts multi-core processors and distributed computing to accelerate the calculation process and improve the execution efficiency and speed of the algorithm. During the analysis and calculation process, by monitoring the changes in the light intensity received by the optical receiver 11, especially the reduction in the scattered light intensity in the middle black spot area, the changes in the amount of condensate can be indirectly reflected. By using the pre-established correspondence between the scattered light intensity and the amount of condensate, quantitative measurement of the amount of condensate can be achieved. Furthermore, combined with temperature control and data analysis algorithms, the temperature value of the hydrocarbon dew point can be accurately determined.

[0035] The hydrocarbon gas dew point detection system can accurately capture the tiny changes during the condensation of hydrocarbon gases through specially designed mirror structures and optical detection methods, and achieve accurate measurement of the amount of condensate, thereby improving the accuracy of hydrocarbon gas dew point measurement. It does not need to rely on naked eye observation or complex equipment, and can achieve automated measurement through optical detectors, which greatly simplifies the operation process. This application uses a simple mirror structure and optical detection elements, and the equipment cost and maintenance cost are relatively low, which is conducive to the promotion and application in the industrial field. It is not only suitable for the dew point measurement of hydrocarbon gases, but can also be extended to other gas measurement fields with similar characteristics, and has strong versatility and applicability.

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A hydrocarbon gas dew point detection system, characterized in that: It includes an intelligent processor, a power module and a fan, wherein the power module is connected to the intelligent processor and the fan, and the power module controls the fan to be turned on or off; The intelligent processor is connected to the optical transmitter control circuit, and the optical transmitter control circuit controls the optical transmitter to emit a specific wavelength or a spectrum of a wavelength range; The intelligent processor is connected to the temperature measuring circuit, which receives the temperature signal of the platinum resistor and transmits the temperature signal to the intelligent processor for calculation; The light beam emitted by the optical transmitter is reflected by the mirror reflector and received by the optical receiver, and the optical receiver transmits the detection signal to the intelligent processor for analysis and processing.

2. The hydrocarbon gas dew point detection system according to claim 1, characterized in that: The optical receiver is connected to an optical receiver detection circuit, and the optical receiver detection circuit transmits the detection signal to the intelligent processor for analysis and processing.

3. The hydrocarbon gas dew point detection system according to claim 1, characterized in that: The intelligent processor is connected to the refrigeration circuit, and the intelligent processor controls the refrigeration circuit to perform refrigeration control on the mirror cooler.

4. The hydrocarbon gas dew point detection system according to claim 1, characterized in that: The mirror cooler contacts the radiator for heat exchange, and the radiator is cooled by a fan.

5. The hydrocarbon gas dew point detection system according to claim 4, characterized in that: The mirror cooler is abutted against the heat sink, and the fan is located on a side of the heat sink far away from the mirror cooler.

6. The hydrocarbon gas dew point detection system according to claim 1, characterized in that: A platinum resistor is arranged inside the mirror reflector, and the platinum resistor transmits the temperature signal to the temperature measuring circuit, and the temperature measuring circuit transmits the temperature signal to the intelligent processor, and the intelligent processor controls the mirror cooler to perform cooling through the refrigeration circuit.

7. The hydrocarbon gas dew point detection system according to claim 1, characterized in that: The optical transmitter and the optical receiver are arranged above the mirror reflector at intervals, and the side of the mirror reflector close to the optical transmitter and the optical receiver is a concave mirror surface.

8. The hydrocarbon gas dew point detection system according to claim 7, characterized in that: A circular hole is provided in the center of the concave mirror surface, and the concave mirror surface is polished to reduce reflectivity.

9. The hydrocarbon gas dew point detection system according to claim 1, characterized in that: When the mirror reflector is dry, turn on the optical transmitter and the optical receiver, adjust the beam focus position and the receiving angle of the optical receiver so that the optical receiver receives a stable basic signal, and record the light intensity distribution at this time as a calibration reference.

10. The hydrocarbon gas dew point detection system according to claim 1, characterized in that: The measured gas is introduced, the mirror cooler is started to cool the mirror reflector, and the optical transmitter and optical receiver are turned on to monitor the changes of the reflected light in real time; when it is observed that the reflected light forms a halo and the intensity of the scattered light in the middle black spot area is significantly reduced, the temperature value and light intensity change data at this time are recorded.

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