A portable natural gas leak detection device

Abstract

The utility model discloses a kind of portable natural gas leakage detection devices, it includes gas collection component, signal processing component, environmental adaptation component, alarm component and power management component.Gas collection component improves detection accuracy by porous filter screen unit and humidity regulating unit, air flow guiding component enhances collection efficiency;Environmental adaptation component improves complex environmental adaptation ability by temperature compensation unit and pressure balance unit;Alarm component realizes multiple alarm by sound-light prompt unit and vibration feedback unit;Power management component prolongs endurance time by electric quantity monitoring unit and energy-saving control unit.The device adopts modular design, compact and light structure, the overall weight does not exceed 500 grams.The present application can quickly and accurately detect natural gas leakage, meet the needs of on-site portability and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of safety detection equipment technology, and in particular to a portable natural gas leak detection device. Background Technology

[0002] To improve the safety of natural gas use and reduce potential safety hazards, the application of natural gas in industry and households is becoming increasingly widespread. However, natural gas leaks can cause serious safety problems, such as explosions or poisoning, thus requiring timely leak detection. Most current natural gas leak detection equipment is bulky and inconvenient to carry, making it difficult to meet the needs of rapid on-site detection. Furthermore, some equipment has poor environmental adaptability, and its detection accuracy may be affected under complex conditions. In addition, existing equipment still has room for improvement in terms of ease of operation and response speed, which may lead to leaks not being detected and addressed in a timely manner. To address this, we propose a portable natural gas leak detection device. Utility Model Content

[0003] The purpose of this utility model is to provide a portable natural gas leak detection device that solves the problems mentioned in the background art.

[0004] This invention is implemented as follows: a portable natural gas leak detection device includes a gas sampling component, a signal processing component, an environmental adaptation component, an alarm component, and a power management component. The gas sampling component is connected to the signal processing component via a gas conduit for transmitting the collected gas sample to the signal processing component for analysis. The signal processing component is connected to the alarm component via a data cable for transmitting the analyzed results to the alarm component. The environmental adaptation component is mechanically fixed to the outside of the gas sampling component to adjust the operating state of the gas sampling component to adapt to different environmental conditions. The power management component is connected to the gas sampling component, signal processing component, environmental adaptation component, and alarm component via power supply lines to provide stable power support for the entire device.

[0005] Furthermore, a portable natural gas leak detection device also includes: an airflow guiding component, which is installed at the inlet end of the gas collection component via a threaded connection to enhance gas flow efficiency and improve the detection sensitivity of the gas collection component to natural gas concentration; the airflow guiding component has a built-in rotatable fan blade structure, which is driven by a micro motor to accelerate the speed at which gas enters the gas collection component.

[0006] Furthermore, the gas collection component includes a porous filter unit, a gas sensor unit, and a humidity control unit. The porous filter unit is installed at the air inlet of the gas collection component by a snap-fit ​​method to filter particulate matter in the gas. The gas sensor unit is fixed inside the gas collection component by welding to detect the concentration of natural gas. The humidity control unit is installed on the side wall of the gas collection component via a slide rail to absorb excess moisture to avoid excessive humidity affecting the detection accuracy of the gas sensor unit.

[0007] Furthermore, the environmental adaptation component includes a temperature compensation unit and a pressure balancing unit. The temperature compensation unit is connected to the gas collection component via a thermistor and is used to adjust the operating parameters of the gas collection component according to changes in ambient temperature. The pressure balancing unit is connected to the outer shell of the gas collection component via an elastic diaphragm structure and is used to automatically adjust the internal pressure of the gas collection component when the external air pressure changes, ensuring its normal operation.

[0008] Furthermore, the signal processing component includes an analog signal conversion unit, a digital signal processing unit, and a storage unit. The analog signal conversion unit is connected to the gas sensor unit via a circuit board integration method and is used to convert the analog signal output by the gas sensor unit into a digital signal. The digital signal processing unit is connected to the storage unit via a data bus and is used to analyze and process the converted digital signal and store the result in the storage unit. The storage unit is connected to the alarm component via an interface and is used to transmit the stored data to the alarm component.

[0009] Furthermore, the alarm component includes an audible and visual alert unit and a vibration feedback unit. The audible and visual alert unit is fixed to the outer surface of the device by screws and is used to alert the user of the detection results through sound and light. The vibration feedback unit is installed inside the device by spring connection and is used to alert the user through vibration when a natural gas leak is detected. Both the audible and visual alert unit and the vibration feedback unit are connected to the signal processing component through signal cables to receive the analysis results transmitted by the signal processing component.

[0010] Furthermore, the power management component includes a battery pack, a power monitoring unit, and an energy-saving control unit. The battery pack is fixed to the bottom of the device by welding and is used to provide power support for the entire device. The power monitoring unit is connected to the battery pack through a circuit board integration method and is used to monitor the remaining power of the battery pack in real time. The energy-saving control unit is connected to the signal processing component through logic circuitry and is used to dynamically adjust the power consumption of the device according to the working status of the signal processing component.

[0011] Furthermore, the gas acquisition component, signal processing component, environmental adaptation component, alarm component, and power management component are all assembled through a modular design, and the components are connected through standardized interfaces, which facilitates disassembly and replacement; the modular design is made of lightweight materials, and the overall weight of the device does not exceed 500 grams, making it easy to carry and operate.

[0012] Compared with existing technologies, the advantages of this invention are as follows: This invention provides a portable natural gas leak detection device that achieves rapid and accurate detection of natural gas leaks through the coordinated operation of a gas collection component, a signal processing component, an environmental adaptation component, an alarm component, and a power management component. The gas collection component improves detection accuracy through a porous filter unit and a humidity control unit, while the airflow guiding component enhances gas collection efficiency. The environmental adaptation component improves the device's adaptability to complex environments through a temperature compensation unit and a pressure balancing unit. The alarm component provides multiple alarm methods through an audible and visual prompt unit and a vibration feedback unit, ensuring users can receive detection results promptly. The power management component extends the device's battery life through a power monitoring unit and an energy-saving control unit. Furthermore, the device adopts a modular design, facilitating maintenance and upgrades. Its compact and lightweight overall structure meets the needs of rapid on-site detection, effectively solving the problems of large size, poor portability, weak environmental adaptability, and slow response speed of existing equipment. Attached Figure Description

[0013] Figure 1 This is an overall system block diagram of a portable natural gas leak detection device;

[0014] Figure 2 A detailed block diagram of the gas collection component of a portable natural gas leak detection device;

[0015] Figure 3 This is a block diagram of the airflow guiding component of a portable natural gas leak detection device.

[0016] The attached figures are labeled as follows:

[0017] 1. Gas acquisition unit; 2. Signal processing unit; 3. Environmental adaptation unit; 4. Alarm unit; 5. Power management unit; 6. Airflow guiding unit; 7. Porous filter unit; 8. Gas sensor unit; 9. Humidity control unit. Detailed Implementation

[0018] This utility model provides a portable natural gas leak detection device, the overall structure of which is as follows: Figure 1As shown, the device includes a gas acquisition component 1, a signal processing component 2, an environmental adaptation component 3, an alarm component 4, and a power management component 5. These components are assembled through a modular design, and are connected via standardized interfaces for easy disassembly and replacement. The specific embodiments of this invention are described in detail below with reference to the accompanying drawings.

[0019] Gas collection component 1 is one of the core parts of the entire device, and its structure is as follows: Figure 2 As shown, the system includes an airflow guiding component 6, a porous filter unit 7, a gas sensor unit 8, and a humidity control unit 9. The airflow guiding component 6 is installed at the air inlet of the gas collection component 1 via a threaded connection. Its built-in fan blade structure is driven by a micro-motor, accelerating the speed at which gas enters the gas collection component 1. The porous filter unit 7 is installed at the air inlet of the gas collection component 1 via a snap-fit ​​method, filtering particulate matter in the gas to ensure the purity of the gas entering the gas sensor unit 8. The gas sensor unit 8 is fixed inside the gas collection component 1 by welding and is used to detect the concentration of natural gas. The humidity control unit 9 is installed on the side wall of the gas collection component 1 via a slide rail, absorbing excess moisture to prevent excessive humidity from affecting the detection accuracy of the gas sensor unit 8. The gas collection component 1 is connected to the signal processing component 2 via a gas conduit, used to transmit the collected gas sample to the signal processing component 2 for analysis.

[0020] The signal processing unit 2 includes an analog signal conversion unit, a digital signal processing unit, and a storage unit, which are connected to the gas sensor unit 8 via a circuit board integration. The analog signal conversion unit converts the analog signal output from the gas sensor unit 8 into a digital signal. The digital signal processing unit, connected to the storage unit via a data bus, analyzes and processes the converted digital signal and stores the results in the storage unit. The storage unit is connected to the alarm unit 4 via an interface to transmit the stored data to the alarm unit 4. The signal processing unit 2 is also connected to the alarm unit 4 via a data cable to transmit the analyzed results to the alarm unit 4.

[0021] The environmental adaptation component 3 includes a temperature compensation unit and a pressure balancing unit. The temperature compensation unit is connected to the gas collection component 1 via a thermistor and is used to adjust the operating parameters of the gas collection component 1 according to changes in ambient temperature. The pressure balancing unit is connected to the outer shell of the gas collection component 1 via an elastic diaphragm structure and is used to automatically adjust the internal pressure of the gas collection component 1 when the external air pressure changes, ensuring its normal operation. The environmental adaptation component 3 is mechanically fixed to the outside of the gas collection component 1 and is used to adjust the operating state of the gas collection component 1 to adapt to different environmental conditions.

[0022] Alarm component 4 includes an audible and visual alert unit and a vibration feedback unit. The audible and visual alert unit is mounted on the outer casing of the device by screws and is used to alert the user of the detection results through sound and light. The vibration feedback unit is installed inside the device by a spring connection and is used to alert the user through vibration when a natural gas leak is detected. Both the audible and visual alert unit and the vibration feedback unit are connected to the signal processing component 2 via signal cables to receive the analysis results transmitted by the signal processing component 2.

[0023] The power management component 5 includes a battery pack, a power monitoring unit, and an energy-saving control unit. The battery pack is soldered to the bottom of the device to provide power for the entire unit. The power monitoring unit is integrated with the battery pack via a circuit board to monitor the remaining battery power in real time. The energy-saving control unit is connected to the signal processing component 2 via logic circuitry to dynamically adjust the device's power consumption based on the operating status of the signal processing component 2. The power management component 5 is connected to the gas acquisition component 1, the signal processing component 2, the environmental adaptation component 3, and the alarm component 4 via power supply lines to provide stable power support for the entire device.

[0024] The working process of this utility model is as follows: When the device is started, the micro motor in the airflow guiding component 6 drives the fan blade structure to rotate, accelerating the external gas through the porous filter unit 7 into the gas collection component 1. The porous filter unit 7 filters out particulate matter in the gas, ensuring gas purity. The gas then enters the gas sensor unit 8, which detects the concentration of natural gas and outputs the detection result to the signal processing component 2 in the form of an analog signal. The humidity adjustment unit 9 absorbs excess moisture in the gas, preventing excessive humidity from affecting the detection accuracy of the gas sensor unit 8. The analog signal conversion unit of the signal processing component 2 converts the analog signal output by the gas sensor unit 8 into a digital signal. The digital signal processing unit analyzes and processes the converted digital signal and stores the analysis result in the storage unit. The storage unit transmits the analysis result to the alarm component 4. If a natural gas leak is detected, the audible and visual prompting unit of the alarm component 4 alerts the user through sound and light, while the vibration feedback unit alerts the user through vibration. During this process, the temperature compensation unit of the environmental adaptation component 3 adjusts the operating parameters of the gas collection component 1 according to changes in ambient temperature, and the pressure balancing unit automatically adjusts the internal pressure of the gas collection component 1 when the external air pressure changes, ensuring its normal operation. The battery pack of the power management unit 5 provides power support for the entire device. The power monitoring unit monitors the remaining power of the battery pack in real time, and the energy-saving control unit dynamically adjusts the power consumption of the device according to the working status of the signal processing unit 2.

[0025] This invention is made of lightweight materials, with the entire device weighing no more than 500 grams, making it easy to carry and operate. Its modular design makes the connection and replacement of various components more convenient, meeting the needs of rapid on-site testing.

[0026] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0027] In practical use, suppose a leak needs to be detected at the natural gas pipeline interface in a family kitchen. The operator first takes out the portable natural gas leak detection device, which is easily carried to the detection site thanks to its lightweight design (overall weight not exceeding 500 grams). After the device is activated, the micro-motor in the airflow guiding component 6 drives the fan blade structure to rotate. The high-speed rotation of the fan blades creates a negative pressure at the air inlet, thereby accelerating the external gas through the porous filter unit 7 into the gas collection component 1. During this process, the porous filter unit 7 effectively filters out particulate matter in the gas through its dense microporous structure, ensuring that the gas entering the gas sensor unit 8 is pure and avoiding a decrease in detection accuracy due to impurities.

[0028] Subsequently, the filtered gas enters the gas sensor unit 8. The sensitive element inside the gas sensor unit 8 reacts with specific components in the natural gas, generating an analog signal proportional to the gas concentration. This signal is transmitted via circuitry to the analog signal conversion unit of the signal processing component 2, which converts the received analog signal into a digital signal. The digital signal processing unit further analyzes and processes the received digital signal, for example, by using algorithms to remove the influence of environmental noise, and stores the final analysis results in the storage unit. During this process, the humidity control unit 9 effectively avoids interference from excessive humidity on the detection accuracy of the gas sensor unit 8 by absorbing excess moisture in the gas, ensuring the reliability of the detection results.

[0029] Meanwhile, the temperature compensation unit in the environmental adaptation component 3 monitors changes in ambient temperature in real time via a thermistor and adjusts the operating parameters of the gas collection component 1 accordingly. For example, in low-temperature environments, the temperature compensation unit appropriately increases the sensitivity of the gas sensor unit 8 to offset the impact of low temperature on detection performance. The pressure balancing unit automatically adjusts the internal pressure of the gas collection component 1 through an elastic diaphragm structure, ensuring that the gas collection component 1 maintains a stable operating state even under fluctuating external air pressure. This design enables the device to maintain high detection accuracy in complex environments.

[0030] Once the signal processing unit 2 completes data analysis, if the detected natural gas concentration exceeds a preset safety threshold, the alarm unit 4 will be triggered. The audible and visual alert unit alerts the user to potential leak risks by emitting a high-decibel sound and flashing lights, while the vibration feedback unit further enhances the user's perception through vibration generated by a spring connection. This multi-alarm system ensures that users can promptly receive the detection results even in noisy or poorly lit environments.

[0031] Throughout the testing process, the battery pack of the power management unit 5 provides stable power support to all components. The power monitoring unit monitors the remaining battery power in real time and displays the remaining power information on the display screen on the device casing. The energy-saving control unit dynamically adjusts the device's power consumption based on the operating status of the signal processing unit 2, for example, reducing the processing frequency of the signal processing unit 2 when no anomalies are detected, thereby extending the device's battery life. Furthermore, the modular design makes the connection and replacement of components more convenient. For example, if the gas sensor unit 8 degrades in performance due to long-term use, operators can quickly replace it with a new sensor unit through a standardized interface, completing maintenance without the need for specialized tools.

[0032] Through the above steps, this invention achieves rapid and accurate detection of natural gas leaks. Its core lies in the synergistic operation of the airflow guiding component 6 and the porous filter unit 7, which improves gas collection efficiency; the coordination of the humidity adjustment unit 9 and the temperature compensation unit enhances detection accuracy; and the modular design and multiple alarm mechanisms meet the needs of rapid on-site detection. These design features collectively solve the problems of large size, poor portability, weak environmental adaptability, and slow response speed of existing equipment, providing a reliable guarantee for the safety of natural gas use.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable natural gas leak detection device, characterized in that, It includes a gas acquisition component (1), a signal processing component (2), an environmental adaptation component (3), an alarm component (4), and a power management component (5); The gas collection component (1) is connected to the signal processing component (2) through a gas conduit, and is used to transmit the collected gas sample to the signal processing component (2) for analysis; The signal processing component (2) is connected to the alarm component (4) via a data cable and is used to transmit the analyzed results to the alarm component (4); The environmental adaptation component (3) is mechanically fixed to the outside of the gas collection component (1) to adjust the working state of the gas collection component (1) to adapt to different environmental conditions; The power management component (5) is connected to the gas collection component (1), the signal processing component (2), the environmental adaptation component (3), and the alarm component (4) respectively through power supply lines, and is used to provide power support for the entire device.

2. The portable natural gas leak detection device according to claim 1, characterized in that: It also includes an airflow guiding component (6), which is installed at the air inlet of the gas collection component (1) by means of a threaded connection, in order to enhance the gas flow efficiency and improve the detection sensitivity of the gas collection component (1) to natural gas concentration; the airflow guiding component (6) has a built-in rotatable fan blade structure, which is driven by a micro motor to accelerate the speed at which gas enters the gas collection component (1).

3. The portable natural gas leak detection device according to claim 1, characterized in that: The gas collection component (1) includes a porous filter unit (7), a gas sensor unit (8), and a humidity control unit (9). The porous filter unit (7) is installed at the air inlet of the gas collection component (1) by a snap-fit ​​method to filter particulate matter in the gas. The gas sensor unit (8) is fixed inside the gas collection component (1) by welding to detect the concentration of natural gas. The humidity control unit (9) is installed on the side wall of the gas collection component (1) by a slide rail to absorb excess moisture to avoid excessive humidity affecting the detection accuracy of the gas sensor unit (8).

4. The portable natural gas leak detection device according to claim 1, characterized in that: The environmental adaptation component (3) includes a temperature compensation unit and a pressure balancing unit. The temperature compensation unit is connected to the gas collection component (1) through a thermistor and is used to adjust the working parameters of the gas collection component (1) according to the change of ambient temperature. The pressure balancing unit is connected to the outer shell of the gas collection component (1) through an elastic diaphragm structure and is used to automatically adjust the internal pressure of the gas collection component (1) when the external air pressure changes, so as to ensure its normal operation.

5. A portable natural gas leak detection device according to claim 1, characterized in that: The signal processing component (2) includes an analog signal conversion unit, a digital signal processing unit, and a storage unit. The analog signal conversion unit is connected to the gas sensor unit (8) via a circuit board integration method and is used to convert the analog signal output by the gas sensor unit (8) into a digital signal. The digital signal processing unit is connected to the storage unit via a data bus and is used to analyze and process the converted digital signal and store the result in the storage unit. The storage unit is connected to the alarm component (4) via an interface and is used to transmit the stored data to the alarm component (4).

6. A portable natural gas leak detection device according to claim 1, characterized in that: The alarm component (4) includes an audible and visual prompting unit and a vibration feedback unit. The audible and visual prompting unit is installed on the outer surface of the device by means of screw fixing and is used to prompt the user with sound and light to indicate the detection results. The vibration feedback unit is installed inside the device by means of spring connection and is used to remind the user with vibration when a natural gas leak is detected. Both the audible and visual prompting unit and the vibration feedback unit are connected to the signal processing component (2) through signal cables and are used to receive the analysis results transmitted by the signal processing component (2).

7. A portable natural gas leak detection device according to claim 1, characterized in that: The power management component (5) includes a battery pack, a power monitoring unit, and an energy-saving control unit. The battery pack is fixed to the bottom of the device by welding and is used to provide power support for the entire device. The power monitoring unit is connected to the battery pack by circuit board integration and is used to monitor the remaining power of the battery pack in real time. The energy-saving control unit is connected to the signal processing component (2) by logic circuit and is used to dynamically adjust the power consumption of the device according to the working status of the signal processing component (2).

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