Leakage monitoring system, device and method for SF6 gas

Abstract

The invention relates to a leakage monitoring system, device and method for # imgabs0 gas, and the system comprises an electrochemical sensor module, a data collection and processing module, a reaction module, an alarm module, a power module, a display module, a wireless communication module, a protection mechanism, and an installation mechanism. The electrochemical sensor module, the data acquisition and processing module, the reaction module, the alarm module, the power supply module, the display module and the wireless communication module are all arranged on the protection mechanism, the protection mechanism is arranged on the mounting mechanism, and by monitoring the concentration of # imgabs1 # gas in real time, the device has the capability of quick response, the response speed to leaked gas is high, and the detection accuracy is high. According to the gas leakage detector, the leakage of the # imgabs2 # gas can be rapidly detected, the emission amount of the # imgabs4 # gas corresponding to the # imgabs3 # gas can be displayed, an alarm can be provided in time, the leakage monitoring effect of the # imgabs5 # gas is improved, and the gas leakage detector is small in size, light in weight, convenient to carry and install, low in power consumption and suitable for long-term continuous monitoring, field monitoring and mobile detection application of the # imgabs6 # gas.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission monitoring, and specifically to a method for A gas leakage monitoring system, device and method. Background Art

[0002] Gas is a colorless, odorless, non-toxic and highly stable non-flammable gas that is stored in liquid form at room temperature. It is mainly used as an insulating and arc-extinguishing medium in high-voltage electrical equipment. Gas has extremely high breakdown voltage strength and thermal stability, which can effectively prevent high temperature damage caused by arc. At the same time, its insulation performance is much better than air and other common insulating materials, which helps to improve the safety and reliability of equipment. However, it is worth noting that is a potent greenhouse gas with a very high global warming potential, so monitoring and controlling The leakage of carbon dioxide is crucial to reducing the greenhouse effect and protecting the environment.

[0003] After searching, a method was proposed based on the Chinese invention application number CN202011150128.8. Leakage monitoring method and system, the invention content of which records "the The leakage monitoring method and system obtain the target area through image processing The leakage situation can be checked in real time. It monitors the leakage of the environment and has the characteristics of good monitoring effect and high implementation convenience.

[0004] Insulation equipment often works in confined spaces such as indoor substations. It is harmless to the human body, but it may cause suffocation in high concentration environments. In case of abnormal gas leakage, the operator can take timely maintenance measures to avoid accidents. Leakage monitoring method and system, it is necessary to combine multiple The infrared imaging leak detector is fixedly installed at the place to be tested, which has high monitoring cost and poor flexibility, affecting the In order to improve the gas leakage monitoring effect, a method for A gas leakage monitoring system, device and method are provided to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a Gas leakage monitoring system, device and method have improved The advantages of gas leakage monitoring effect, etc., solve the problem of high monitoring cost and poor flexibility, which affects the The problem of gas leakage monitoring effect.

[0006] To achieve the above object, the present invention provides the following technical solution: A gas leakage monitoring system, comprising an electrochemical sensor module, a data acquisition and processing module, a reaction module, an alarm module, a power module, a display module, a wireless communication module, a protection mechanism and a mounting mechanism, wherein the electrochemical sensor module, the data acquisition and processing module, the reaction module, the alarm module, the power module, the display module and the wireless communication module are all arranged on the protection mechanism, and the protection mechanism is arranged on the mounting mechanism; The electrochemical sensor module is used to detect The gas concentration is converted into an electrical signal. The data acquisition and processing module is used to receive and process the electrical signal sent by the electrochemical sensor module and convert it into Gas concentration value, calculated at the same time The gas concentration corresponds to Gas emissions, and record relevant data, the reaction module is used to improve the electrochemical sensor module Gas detection sensitivity, the alarm module is used to receive The gas concentration value is determined based on the preset alarm concentration threshold value to determine whether to issue an alarm. The power module is used to provide power support for the entire leakage monitoring system. The display module is used to display Gas concentration and The gas concentration corresponds to Gas emissions, the wireless communication module is used to remotely transmit the monitoring data to the remote monitoring center to share and manage the data, the protection mechanism is used to protect the electrochemical sensor module, the data acquisition and processing module, the reaction module, the alarm module, the power module, the display module and the wireless communication module, and the installation mechanism is used to install the protection mechanism to the position to be tested.

[0007] Another technical problem solved by the present application is to provide a Gas leakage monitoring device, the electrochemical sensor module comprises The gas monitoring sensor, the reaction module is a reaction piece, the alarm module includes an alarm, the display module includes a display screen, the protection mechanism includes a housing, the The gas monitoring sensor, the data acquisition and processing module, the reaction element, the alarm, the display screen and the wireless communication module are all arranged on the outer shell.

[0008] Furthermore, a catalyst is provided on the reaction element, and the catalyst is used to increase Gas Monitoring Sensor Pair Gas detection sensitivity.

[0009] Furthermore, a metal electrode is provided on the reaction element, and the metal electrode is used to increase Gas Monitoring Sensor Pair Gas detection sensitivity.

[0010] Furthermore, the protection mechanism includes a knob suction cup, a fixing plate is fixedly installed on the outside of the knob suction cup, a fixing rod is fixedly installed on the outside of the fixing plate, a mounting seat is fixedly installed on the outside of the fixing rod, and the shell is arranged on the mounting seat.

[0011] Another technical problem solved by the present application is to provide a The gas leakage monitoring method includes the following specific steps: S1: Data acquisition and processing module presets alarm concentration threshold; S1.1: Get the historical normal status Gas concentration value, select the latest n detection results as reference data, and build a reference data set ; S1.2: Obtain reference dataset ,based on Calculation of the maximum difference expression of gas concentration values The maximum difference in gas concentration values, based on Calculation of the mean value expression of gas concentration value The average value of gas concentration is calculated as: In the formula, for The maximum difference in gas concentration values, for The maximum value of gas concentration, for The minimum value of gas concentration, for The average value of gas concentration; S1.3: Acquisition The maximum difference and average value of the gas concentration values ​​are used to calculate the alarm concentration threshold based on the alarm concentration threshold expression. The calculation expression is: In the formula, is the alarm concentration threshold, is the coefficient, ; S2: The electrochemical sensor module detects the position to be tested Gas concentration; S3: Data acquisition and processing module Gas concentration is converted to Gas concentration value; S3.1: The data acquisition processing module is based on the operational amplifier circuit The current signal generated by the gas concentration is converted into a voltage signal, and the converted voltage signal is amplified; S3.2: The data acquisition processing module converts the converted voltage signal into a digital signal based on an analog-to-digital converter; S3.3: Data acquisition and processing module is based on The gas concentration expression converts the voltage signal into the corresponding Concentration value.

[0012] S3.3.1: Get history The sensitivity of the electrochemical sensor module is calculated based on the linear formula based on the gas concentration value, the historical electrochemical sensor module reference voltage and the historical electrochemical sensor module output voltage. The calculation expression is: In the formula, is the sensitivity of the electrochemical sensor module, For History Gas concentration value, is the historical electrochemical sensor module reference voltage, Output voltage of the electrochemical sensor module for the history; S3.3.2: Obtain the electrochemical sensor module sensitivity, the real-time electrochemical sensor module reference voltage, and the real-time electrochemical sensor module output voltage, based on Gas concentration expression calculation real-time Gas concentration value, calculated as: In the formula, For real-time Gas concentration value, is the real-time electrochemical sensor module reference voltage, Output voltage for real-time electrochemical sensor module; S4: Display module display Gas concentration and The gas concentration corresponds to Gas emissions; S4.1: Get real-time Concentration value, based on Gas emission expression calculation Gas emissions, calculated as: In the formula, for Gas volume, is the total volume of the mixed gas, for Gas emissions, for Gas density; S4.2: Acquisition Gas emissions, based on Gas emission expression calculation Gas emissions, calculated as: In the formula, for Gas emissions, 23500 Gas relative to Multiples of gas emissions; S5: Data acquisition and processing module judgment Is the gas concentration value higher than the alarm concentration threshold? If yes, an alarm is issued; otherwise, the system returns to S2.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects: Used for Gas leakage monitoring system, device and method, through real-time monitoring Gas concentration, with the ability to respond quickly, the response speed to leaked gas is fast, not only can it quickly detect Gas leakage, and can show Gas Corresponding Gas emissions and provide timely alarms, improving Gas leakage monitoring effect, small size, light weight, easy to carry, easy to install, low power consumption, suitable for Long-term continuous gas monitoring, on-site monitoring and mobile detection applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the system of the present invention; Figure 2 It is a front view of the housing of the present invention; Figure 3 It is a right side view of the housing of the present invention; Figure 4 It is a schematic diagram of the process of the present invention.

[0015] In the picture: 1 Gas monitoring sensor, 2 reaction piece, 3 alarm, 4 display screen, 5 housing, 61 knob suction cup, 62 fixing plate, 63 mounting base, 64 mounting base. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-4 In this embodiment, one method is used for The gas leakage monitoring system includes an electrochemical sensor module, a data acquisition and processing module, a reaction module, an alarm module, a power module, a display module, a wireless communication module, a protection mechanism and an installation mechanism. The electrochemical sensor module, the data acquisition and processing module, the reaction module, the alarm module, the power module, the display module and the wireless communication module are all arranged on the protection mechanism, the protection mechanism is arranged on the installation mechanism, and the electrochemical sensor module is used to detect The gas concentration is converted into an electrical signal. The data acquisition and processing module is used to receive and process the electrical signal sent by the electrochemical sensor module and convert it into Gas concentration value, calculated at the same time The gas concentration corresponds to Gas emissions and record relevant data. The reaction module is used to improve the electrochemical sensor module Gas detection sensitivity, alarm module is used to receive The gas concentration value is determined based on the preset alarm concentration threshold to determine whether to issue an alarm. The power module is used to provide power support for the entire leakage monitoring system, and the display module is used to display Gas concentration and The gas concentration corresponds to Gas emissions, the wireless communication module is used to remotely transmit the monitoring data to the remote monitoring center to share and manage the data, the protection mechanism is used to protect the electrochemical sensor module, data acquisition and processing module, reaction module, alarm module, power module, display module and wireless communication module, and the installation mechanism is used to install the protection mechanism to the position to be tested.

[0018] Specifically, through real-time monitoring Gas concentration, with the ability to respond quickly, the response speed to leaked gas is fast, not only can it quickly detect Gas leakage, and can display Gas Corresponding Gas emissions and provide timely alarms, improving Gas leakage monitoring effect, small size, light weight, easy to carry, easy to install, low power consumption, suitable for Long-term continuous gas monitoring, on-site monitoring and mobile detection applications.

[0019] Another technical problem solved by the present application is to provide a Gas leakage monitoring device, electrochemical sensor module includes The gas monitoring sensor 1, the reaction module is a reaction element 2, the alarm module includes an alarm 3, the display module includes a display screen 4, and the protection mechanism includes a housing 5. The gas monitoring sensor 1 , the data acquisition and processing module, the reaction element 2 , the alarm 3 , the display screen 4 , and the wireless communication module are all arranged on the housing 5 .

[0020] Specifically, the data acquisition and processing module is a microprocessor Arduino, and the wireless communication module is a Wi-Fi module.

[0021] In this embodiment, a catalyst is provided on the reaction element 2, and the catalyst is used to increase Gas monitoring sensor 1 pair Gas detection sensitivity.

[0022] Specifically, the catalyst is an alloy material of platinum, palladium, rhodium and ruthenium, and the weight ratio of platinum, palladium, rhodium and ruthenium is 30%:30%:20%:20%. Platinum and palladium are common precious metal catalysts with good catalytic activity and electrochemical stability. Platinum catalyst is suitable for oxidation reaction and can promote The oxidation reaction of the gas at low temperature increases The response speed and sensitivity of the gas monitoring sensor 1, rhodium and ruthenium are doped into platinum to form an alloy, which can further improve the catalytic efficiency and anti-poisoning ability, In this embodiment, a metal electrode is provided on the reaction element 2, and the metal electrode is used to increase Gas monitoring sensor 1 pair Gas detection sensitivity.

[0023] Specifically, the metal electrode is gold or platinum, both of which have good electrical conductivity and electrocatalytic properties.

[0024] In addition, The gas monitoring sensor 1 uses a catalyst or The gas promotes the reaction of SF6, and the generated electrons pass through the circuit to generate current. The gas monitoring sensor 1 detects the change in current, the magnitude of which is related to The concentration of the gas is proportional to the Gas detection sensitivity.

[0025] In this embodiment, the protective mechanism includes a knob suction cup 61, a fixing plate 62 is fixedly installed on the outside of the knob suction cup 61, a fixing rod 63 is fixedly installed on the outside of the fixing plate 62, a mounting seat 64 is fixedly installed on the outside of the fixing rod 63, the outer shell 5 is set on the mounting seat 63, and the mounting seat 63 is threadedly connected to the outside of the outer shell 5 by bolts.

[0026] Specifically, the knob suction cup 61 is first attached to the outside of the insulating device, and then the knob of the knob suction cup 61 is rotated to make the suction cup adsorbed on the outside of the insulating device, so as to facilitate positioning.

[0027] Another technical problem solved by the present application is to provide a The gas leakage monitoring method includes the following specific steps: S1: The data acquisition and processing module presets the alarm concentration threshold, which is used to determine the detected Whether the gas concentration reaches dangerous levels; S1.1: Get the historical normal status Gas concentration value, select the latest n detection results as reference data, and build a reference data set ; S1.2: Obtain reference dataset ,based on Calculation of the maximum difference expression of gas concentration values The maximum difference in gas concentration values, based on Calculation of the mean value expression of gas concentration value The average value of gas concentration is calculated as: In the formula, for The maximum difference in gas concentration values, for The maximum value of gas concentration, for The minimum value of gas concentration, for The average value of gas concentration, is 20; S1.3: Acquisition The maximum difference and average value of the gas concentration values ​​are used to calculate the alarm concentration threshold based on the alarm concentration threshold expression. The calculation expression is: In the formula, is the alarm concentration threshold, is the coefficient, ; S2: The electrochemical sensor module detects the position to be tested Gas concentrations, which can continuously monitor and respond to the environment Changes in gas concentration; S3: Data acquisition and processing module Gas concentration is converted to Gas concentration value; S3.1: The data acquisition processing module is based on the operational amplifier circuit The current signal generated by the gas concentration is converted into a voltage signal, and the converted voltage signal is amplified for subsequent processing; S3.2: The data acquisition and processing module converts the converted voltage signal into a digital signal based on an analog-to-digital converter to facilitate further data processing and analysis; S3.3: Data acquisition and processing module is based on The gas concentration expression converts the voltage signal into the corresponding Concentration value; S3.3.1: Get history The sensitivity of the electrochemical sensor module is calculated based on the linear formula, which is the gas concentration value, the historical electrochemical sensor module reference voltage and the historical electrochemical sensor module output voltage. The sensitivity reflects the change of the sensor output and the The proportional relationship between the changes in gas concentration is calculated as follows: In the formula, is the sensitivity of the electrochemical sensor module, For History Gas concentration value, is the historical electrochemical sensor module reference voltage, Output voltage of the electrochemical sensor module for the history; S3.3.2: Obtain the electrochemical sensor module sensitivity, the real-time electrochemical sensor module reference voltage, and the real-time electrochemical sensor module output voltage, based on Gas concentration expression calculation real-time Gas concentration values ​​can be accurately obtained even if the sensor characteristics change over time. Gas concentration, calculated as: In the formula, For real-time Gas concentration value, is the real-time electrochemical sensor module reference voltage, Output voltage for real-time electrochemical sensor module; S4: Display module display Gas concentration and The gas concentration corresponds to Gas emissions; S4.1: Get real-time Concentration value, based on Gas emission expression calculation Gas emissions, calculated as: In the formula, for Gas volume, is the total volume of the mixed gas, for Gas emissions, for Gas density; S4.2: Acquisition Gas emissions, based on Gas emission expression calculation Gas emissions, calculated as: In the formula, for Gas emissions, 23500 Gas relative to Multiples of gas emissions; S5: Data acquisition and processing module judgment Is the gas concentration value higher than the alarm concentration threshold? If yes, an alarm is issued; otherwise, the system returns to S2.

[0028] The working principle of the above embodiment is: Through real-time monitoring Gas concentration, with the ability to respond quickly, the response speed to leaked gas is fast, not only can it quickly detect Gas leakage, and can show Gas Corresponding Gas emissions and provide timely alarms, improving Gas leakage monitoring effect, small size, light weight, easy to carry, easy to install, low power consumption, suitable for Long-term continuous gas monitoring, on-site monitoring and mobile detection applications.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for A gas leakage monitoring system, characterized in that: It includes an electrochemical sensor module, a data acquisition and processing module, a reaction module, an alarm module, a power module, a display module, a wireless communication module, a protection mechanism and a mounting mechanism, wherein the electrochemical sensor module, the data acquisition and processing module, the reaction module, the alarm module, the power module, the display module and the wireless communication module are all arranged on the protection mechanism, and the protection mechanism is arranged on the mounting mechanism; The electrochemical sensor module is used to detect The data acquisition and processing module is used to receive and process the electrical signal sent by the electrochemical sensor module and convert it into Gas concentration value, calculated at the same time The gas concentration corresponds to Gas emissions, and record relevant data, the reaction module is used to improve the electrochemical sensor module Gas detection sensitivity, the alarm module is used to receive The gas concentration value is determined based on the preset alarm concentration threshold value to determine whether to issue an alarm. The power module is used to provide power support for the entire leakage monitoring system. The display module is used to display Gas concentration and The gas concentration corresponds to Gas emissions, the wireless communication module is used to remotely transmit the monitoring data to the remote monitoring center to share and manage the data, the protection mechanism is used to protect the electrochemical sensor module, the data acquisition and processing module, the reaction module, the alarm module, the power module, the display module and the wireless communication module, and the installation mechanism is used to install the protection mechanism to the position to be tested.

2. A method for A gas leakage monitoring device, characterized in that: The electrochemical sensor module comprises The gas monitoring sensor (1) comprises a reaction module which is a reaction element (2), an alarm module which comprises an alarm (3), a display module which comprises a display screen (4), a protective mechanism which comprises a housing (5), and The gas monitoring sensor (1), the data acquisition and processing module, the reaction element (2), the alarm (3), the display screen (4), and the wireless communication module are all arranged on the housing (5).

3. A method for A gas leakage monitoring system, characterized in that: The reaction element (2) is provided with a catalyst, which is used to increase Gas Monitoring Sensor (1) pair Gas detection sensitivity.

4. A method for A gas leakage monitoring system, characterized in that: The reaction element (2) is provided with a metal electrode, which is used to increase Gas Monitoring Sensor (1) pair Gas detection sensitivity.

5. A method for A gas leakage monitoring system, characterized in that: The protective mechanism comprises a knob suction cup (61), a fixing plate (62) is fixedly mounted on the outside of the knob suction cup (61), a fixing rod (63) is fixedly mounted on the outside of the fixing plate (62), a mounting seat (64) is fixedly mounted on the outside of the fixing rod (63), and the housing (5) is arranged on the mounting seat (63).

6. A method for use as claimed in claim 1 A gas leakage monitoring method, characterized in that: The specific steps include: S1: Data acquisition and processing module presets alarm concentration threshold; S2: The electrochemical sensor module detects the position to be tested Gas concentration; S3: Data acquisition and processing module Gas concentration is converted to Gas concentration value; S4: Display module display Gas concentration and The gas concentration corresponds to Gas emissions; S5: Data acquisition and processing module judgment Is the gas concentration value higher than the alarm concentration threshold? If yes, an alarm is issued; otherwise, the system returns to S2.

7. A method for use as claimed in claim 6 A gas leakage monitoring method, characterized in that: The data acquisition and processing module in step S1 presets an alarm concentration threshold, including the following specific steps: S1.1: Get the historical normal status Gas concentration value, select the latest n detection results as reference data, and build a reference data set ; S1.2: Obtain reference dataset ,based on Calculation of the maximum difference expression of gas concentration values The maximum difference in gas concentration values, based on Calculation of the mean value expression of gas concentration value The average value of gas concentration is calculated as: In the formula, for The maximum difference in gas concentration values, for The maximum value of gas concentration, for The minimum value of gas concentration, for The average value of gas concentration; S1.3: Acquisition The maximum difference and average value of the gas concentration values ​​are used to calculate the alarm concentration threshold based on the alarm concentration threshold expression. The calculation expression is: In the formula, is the alarm concentration threshold, is the coefficient.

8. A method for use as claimed in claim 6 A gas leakage monitoring method, characterized in that: Step S3: The data acquisition processing module Gas concentration is converted to Gas concentration value, including the following specific steps: S3.1: The data acquisition processing module is based on the operational amplifier circuit The current signal generated by the gas concentration is converted into a voltage signal, and the converted voltage signal is amplified; S3.2: The data acquisition processing module converts the converted voltage signal into a digital signal based on an analog-to-digital converter; S3.3: Data acquisition and processing module is based on The gas concentration expression converts the voltage signal into the corresponding Concentration value.

9. A method for A gas leakage monitoring method, characterized in that: Step S4: the display module displays Gas concentration and The gas concentration corresponds to Gas emissions, including the following specific steps: S4.1: Get real-time Concentration value, based on Gas emission expression calculation Gas emissions, calculated as: In the formula, for Gas volume, is the total volume of the mixed gas, for Gas emissions, for Gas density; S4.2: Acquisition Gas emissions, based on Gas emission expression calculation Gas emissions, calculated as: In the formula, for Gas emissions, 23500 Gas relative to Multiples of gas emissions.

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