Device for automatically detecting methanol concentration before methanol unloading

Abstract

The utility model discloses a device for automatically detecting methanol concentration before methanol unloading. The device comprises a sampling module, a concentration detection module, a data analysis module, a control module, a pump and an alarm module, the sampling module consists of a sampling probe and a sampling pipeline and is used for sampling methanol in unloading and guiding a methanol sample to the concentration detection module; the concentration detection module is used for acquiring the methanol concentration; the concentration detection module is connected to the data analysis module, the data analysis module is connected to the control module, and the control module is connected to the pump and the alarm module; the control module is respectively connected with the first unloading pump and the second unloading pump, the first unloading pump is communicated with the unloading pipeline through a pipeline, and the first unloading pump is communicated with the second unloading pump and the methanol storage tank through pipelines. The utility model aims to provide the device for automatically detecting the methanol concentration before methanol unloading, which can automatically detect the methanol concentration so as to improve the safety and the efficiency of methanol unloading.

Description

Technical Field

[0001] The utility model belongs to the field of transportation and loading / unloading of hazardous chemicals, and particularly relates to a device for automatically detecting methanol concentration before methanol unloading. Background Art

[0002] In chemical production and transportation, methanol unloading is a common operation link. Methanol is colorless and transparent, has an irritating odor of alcohol, is soluble in water, miscible with alcohols and ethers, and is highly toxic to the human body. However, the traditional methanol unloading process often relies on manual detection of methanol concentration, which is not only inefficient, but also difficult to ensure the accuracy and timeliness of the detection results. Once methanol with unqualified concentration is unloaded, it may have a serious impact on the subsequent production process and product quality, and even cause safety accidents. Summary of the Utility Model

[0003] The utility model aims to provide a device for automatically detecting methanol concentration before methanol unloading, which can automatically detect methanol concentration to improve the safety and efficiency of methanol unloading.

[0004] A device for automatically detecting methanol concentration before methanol unloading, the device includes a sampling module, a concentration detection module, a data analysis module, a control module, as well as a pump and an alarm module;

[0005] The sampling module is composed of a sampling probe and a sampling pipeline, and is used for sampling methanol during unloading; a sampling valve is arranged on the unloading pipeline, and the sampling valve is connected to the sampling pipe to guide the methanol sample to the concentration detection module;

[0006] The concentration detection module is used for obtaining the methanol concentration;

[0007] The concentration detection module is connected to the data analysis module, the data analysis module is connected to the control module, and the control module is connected to the pump and the alarm module;

[0008] The control module is respectively connected to the first unloading pump and the second unloading pump. The first unloading pump is communicated with the unloading pipeline through a pipeline, and the first unloading pump is communicated with the second unloading pump and the methanol storage tank through a pipeline.

[0009] Preferably, the concentration detection module is a near-infrared spectroscopy detector or a Fourier transform infrared spectroscopy detector or an electrochemical sensor, and is used for detecting the concentration of the collected sample. The methanol concentration is obtained by chemical analysis or physical detection methods, such as near-infrared spectroscopy or Fourier transform infrared spectroscopy, to perform non-contact detection on the collected methanol sample and quickly obtain concentration data; or a chemical sensor, such as an electrochemical sensor, is used to measure the concentration by generating an electrical signal through a chemical reaction with methanol.

[0010] Preferably, in the data analysis module, the data analysis module is used to transmit the data collected by the concentration detection module to the microprocessor or computer, and compare and analyze the real-time received concentration data with the preset qualified concentration range; the display screen is used to display the real-time concentration data, analysis results, and unloading status or other information through a liquid crystal display screen or a light-emitting diode display screen.

[0011] Preferably, the control module uses a microprocessor or a programmable logic controller or a microcontroller unit. It controls the start or stop of the pump according to whether the concentration is qualified, controls the alarm unit to alarm when the concentration is unqualified, and sends a control signal according to the data analysis result. If the concentration is qualified, the control signal starts the unloading pump to start unloading; if the concentration is unqualified, the control signal stops the operation of the pump and triggers the alarm device.

[0012] Preferably, the alarm module is an audible and visual alarm. When the methanol concentration is unqualified, it emits a loud sound and flashing lights to remind the operator to handle it in time.

[0013] Preferably, a number of methanol storage tanks are connected in parallel, and a feed valve is provided at the inlet of the methanol storage tank.

[0014] Preferably, the entire device system is powered by a stable DC power supply to ensure the normal operation of each component. The system has a data storage function, saves information such as the concentration data and time of each detection, which is convenient for subsequent query and analysis. At the same time, it supports communication with the upper computer or remote monitoring system to realize remote monitoring and management.

[0015] The beneficial effects of the present utility model are as follows:

[0016] Through sampling and detection, it avoids the errors and delays of manual operation, and can quickly and accurately obtain methanol concentration information. It can promptly detect the situation where the methanol concentration is unqualified, stop the pump and alarm, prevent unqualified methanol from entering the subsequent production process, and reduce safety risks. The automatic detection and control process reduces manual intervention and waiting time, making the unloading process more smooth and efficient. There is no need for manual frequent concentration detection, saving labor input. It ensures that the methanol concentration unloaded meets the requirements, which is beneficial to ensuring the quality stability of the subsequent production products. It can display the detection results in real time, enabling the operator to promptly understand the unloading situation and facilitating corresponding decisions. Description of the Drawings

[0017] Figure 1 Schematic structural diagram of the device for automatically detecting methanol concentration before methanol unloading.

[0018] Figure 2 System working flow chart of the present utility model.

[0019] In the figure: methanol unloading crane position 1, methanol vehicle 2, sampling module 3, concentration detection module 4, data analysis module 5, control module 6, alarm module 7, first unloading pump 8 and second unloading pump 9, methanol storage tank 10, feed valve 11. Detailed implementation

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in combination with specific embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0021] Embodiment 1

[0022] A device for automatically detecting the concentration of methanol before unloading methanol, the device includes a sampling module 3, a concentration detection module 4, a data analysis module 5, a control module 6, and a pump and an alarm module 7;

[0023] The sampling module consists of a sampling probe and a sampling pipeline, and is used to sample the methanol in the unloading vehicle 2; a sampling valve is arranged on the pipeline of the unloading vehicle 2, and the sampling valve is connected to the sampling pipe to guide the methanol sample to the concentration detection module 4;

[0024] The concentration detection module 4 is used to obtain the methanol concentration;

[0025] The concentration detection module 4 is connected to the data analysis module 5, the data analysis module 5 is connected to the control module 6, and the control module 6 is connected to the pump and the alarm module 7;

[0026] The control module 6 is respectively connected to the first unloading pump 8 and the second unloading pump 9. The first unloading pump 8 is connected to the pipeline of the unloading vehicle 2 through a pipeline. The first unloading pump 8 is connected to the second unloading pump 9 and the methanol storage tank 10 through a pipeline. A pneumatic valve 11 is arranged at the inlet of the methanol storage tank 10.

[0027] Preferably, the concentration detection module 4 is a near-infrared spectroscopy detector or a Fourier transform infrared spectroscopy detector or an electrochemical sensor, and is used to detect the concentration of the collected sample. The concentration of methanol is obtained by chemical analysis or physical detection methods, such as near-infrared spectroscopy (NIR) or Fourier transform infrared spectroscopy (FTIR), to perform non-contact detection on the collected methanol sample to quickly obtain concentration data; or a chemical sensor, such as an electrochemical sensor, is used to measure the concentration by generating an electrical signal through a chemical reaction with methanol.

[0028] Preferably, in the data analysis module 5, the data analysis module is used to transmit the data collected by the concentration detection module to a microprocessor or a computer, and compare and analyze the real-time received concentration data with a preset qualified concentration range; the display screen is used to display the real-time concentration data, the analysis result, and the unloading state or other information through a liquid crystal display screen LCD or a light-emitting diode display screen LED.

[0029] Preferably, the control module 6 adopts a microprocessor, a programmable logic controller PLC or a microcontroller unit MCU. It controls the start or stop of the pump according to whether the concentration is qualified, controls the alarm unit to alarm when the concentration is unqualified, and sends a control signal according to the data analysis result. If the concentration is qualified, the control signal starts the unloading pump to start unloading; if the concentration is unqualified, the control signal stops the operation of the pump and triggers the alarm device.

[0030] Preferably, the alarm module 7 is an audible and visual alarm. When the methanol concentration is unqualified, it emits a loud sound and flashing lights to remind the operator to handle it in time.

[0031] Preferably, a plurality of methanol storage tanks 10 are connected in parallel, and a feed valve 11 is provided at the inlet of the methanol storage tank 10.

[0032] Regarding the sampling module 3: The LC310 automatic sampling cooling module of Thermo Fisher Scientific can be selected, which is suitable for high-resolution triple quadrupole mass spectrometers and can provide accurate automatic sampling functions.

[0033] Regarding the concentration detection module 4: The HNAG700-CH4O-H methanol concentration detection sensor module of Honeywell Technology Co., Ltd. in Shenzhen is a device based on the electrochemical detection principle, which can detect the methanol gas concentration in real time and output the detected methanol gas signal through the module output line in real time. The measurement range of this device is 0-100 ppm, the resolution is 0.01 ppm, the response time is less than 30 seconds, the working temperature is -20°C to 50°C, and the working humidity is 0-95%RH (without condensation).

[0034] Regarding the data analysis module 5: FineBI of FineReport is a self-service analysis BI tool that integrates data connection, data processing, and visual analysis display. The product performance is close to Tableau, which can withstand big data operations and even achieve second-level response for data in the hundreds of millions. At the same time, FineBI does a good job in enterprise-level data control.

[0035] Regarding the control module 6: The electronic control module of Wuxi Shengjing Microelectronics Co., Ltd. is a module designed specifically for the blasting field and is also applicable to the control applications of chemical plants. This module has the characteristics of high performance and ultra-low power consumption and can achieve precise control functions.

[0036] Regarding alarm module 7: The SIGA-MCC1 of Edwards (EST) in the United States is an intelligent monitoring module that can be used in an automatic alarm system. It has multiple alarm modes and output interfaces and is suitable for dangerous environments such as chemical plants.

[0037] Preferably, the entire device system is powered by a stable DC power supply to ensure the normal operation of each component. The system has a data storage function, saving information such as the concentration data and time of each detection for subsequent query and analysis. At the same time, it supports communication with the host computer or remote monitoring system to achieve remote monitoring and management.

[0038] A device and system for automatically detecting the methanol concentration before unloading methanol. As shown in the figure, when the methanol transport vehicle 2 arrives at the unloading crane position 1, the operator starts the system. The sampling module 3 collects methanol samples from the unloading pipeline through the sampling probe and sampling pipeline and transports them to the concentration detection module 4. The concentration detection module 4 uses chemical analysis methods to detect the concentration of the samples, and the detection results are transmitted to the data analysis module 5. The data analysis unit analyzes and processes the concentration data to determine whether the concentration is qualified. If it is qualified, the control unit starts the first unloading pump 8 and the second unloading pump 9 to start unloading, and at the same time, the display screen real-time displays the concentration data and the unloading status. If the concentration is unqualified, the control unit stops the pump and triggers the alarm module 7 to alarm, and the operator takes timely measures to handle the problem.

[0039] The technical solution of the present invention is explained through the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above specific embodiments to be implemented. Any improvements made by those skilled in the art based on the present invention, or equivalent replacements of the materials selected by the present invention, etc., all fall within the protection scope of the patent.

Claims

1. A device for automatically detecting methanol concentration before unloading methanol, characterized in that: The device comprises a sampling module (3), a concentration detection module (4), a data analysis module (5), a control module (6), and a pump and alarm module (7); The sampling module is composed of a sampling probe and a sampling pipeline, and is used to sample the methanol in the unloading vehicle (2) and guide the methanol sample to the concentration detection module (4); The concentration detection module (4) is used to obtain the methanol concentration; The concentration detection module (4) is connected to a data analysis module (5), the data analysis module (5) is provided with a display screen, the data analysis module (5) is connected to a control module (6), and the control module (6) is connected to a pump and an alarm module (7); The control module (6) is connected to the first unloading pump (8) and the second unloading pump (9) respectively; the first unloading pump (8) is connected to the unloading pipeline (2) through a pipeline; and the first unloading pump (8) is connected to the second unloading pump (9) and the methanol storage tank (10) through a pipeline.

2. The device for automatically detecting methanol concentration before unloading methanol according to claim 1 is characterized in that: The concentration detection module (4) is a near-infrared spectrum detector or a Fourier transform infrared spectrum detector or an electrochemical sensor.

3. The device for automatically detecting methanol concentration before unloading methanol according to claim 1 is characterized in that: The data analysis module (5) is used to transmit the data collected by the concentration detection module to a microprocessor or a computer, and to compare and analyze the concentration data received in real time with a preset qualified concentration range.

4. The device for automatically detecting methanol concentration before unloading methanol according to claim 1, characterized in that: The display screen is used to display real-time concentration data, analysis results, unloading status or other information through a liquid crystal display screen or a light emitting diode display screen.

5. The device for automatically detecting methanol concentration before unloading methanol according to claim 1 is characterized in that: The control module (6) uses a microprocessor or a programmed logic controller or a microcontroller unit to control the start or stop of the pump according to whether the concentration is qualified or not, and controls the alarm module to alarm when the concentration is unqualified.

6. The device for automatically detecting methanol concentration before unloading methanol according to claim 1, characterized in that: The alarm module (7) is an audible and visual alarm.

7. The device for automatically detecting methanol concentration before unloading methanol according to claim 1, characterized in that: A sampling valve is arranged on the sampling pipeline.

8. The device for automatically detecting methanol concentration before unloading methanol according to claim 1, characterized in that: A plurality of the methanol storage tanks (10) are connected in parallel, and a feed valve (11) is provided at the feed inlet of the methanol storage tank (10).

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