Handheld harmful gas real-time monitoring device

Abstract

The utility model discloses a handheld harmful gas real-time monitoring device which comprises a monitoring device body, and the monitoring device body is provided with a monitoring device display screen, a switch button, an operation button, an alarm indicator lamp, a monitoring device probe and a control module. The operation button is in control connection with the monitoring device display screen through the control module, the monitoring device probe is in signal connection with the control module, a plurality of gas sensors are arranged in the monitoring device probe, a PLC module arranged in the control module is in control connection with an alarm indicating lamp, and the switch button is in control connection with a power supply module in the monitoring device body. According to the gas monitoring device, real-time on-line monitoring of harmful gas is achieved, various harmful gases can be monitored synchronously in a targeted mode, the applicability of the gas monitoring device is improved, and the survival conditions of workers are increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas monitoring device technical field especially a handheld harmful gas real time monitoring device. BACKGROUND

[0002] A gas monitoring device is an instrument tool for monitoring gas leakage concentration, which is suitable for dangerous places where flammable or toxic gases exist and can monitor the content of measured gases in the air. It includes portable gas monitoring devices, handheld gas monitoring devices, fixed gas monitoring devices, online gas monitoring devices, etc. It mainly uses gas sensors to monitor the types of gases in the environment. Gas sensors are sensors used to monitor the composition and content of gases and can be widely used in industries such as power and gas where flammable or toxic gases exist. They are ideal monitoring devices for ensuring property and personal safety. However, most existing gas monitoring devices are designed for professional testers, which are not convenient for ordinary users to carry, difficult to operate, difficult to master, and cannot accurately obtain the gas concentration in real time, making them unsuitable for ordinary people.

[0003] At present, the water and electricity industry, as a pillar of power generation, involves various toxic and harmful gases during unit power generation and maintenance, which can easily harm hydroelectric power station equipment maintenance and inspection personnel. The concentration of various gases in airtight space is related to the safety of workers.

[0004] Currently, the common harmful gas monitoring devices on the market mainly include the following types:

[0005] Fixed monitoring device:

[0006] Fixed monitoring devices are usually installed at specific monitoring points and transmit data to the central control system through wired or wireless methods. The advantages of this type of device are high monitoring accuracy, but the disadvantages are high installation and maintenance costs, and inconvenience for moving and temporary monitoring.

[0007] Portable monitoring device:

[0008] Portable monitoring devices are small and easy to carry, suitable for on-site rapid detection. However, existing portable monitoring devices have some shortcomings in terms of functionality and user experience, such as limited monitoring gas types, complex operation, and single alarm function. SUMMARY

[0009] The technical problem to be solved by the utility model is that the portable monitoring device has limited monitoring gas types, complex operation, and single alarm function.

[0010] To solve the above technical problems, the utility model adopts the technical scheme: handheld harmful gas real time monitoring device, including monitoring device body, being provided with monitoring device display screen, switch button, operation button, alarm indicator, monitoring device probe and control module on the detection device body,

[0011] Operation button is connected with monitoring device display screen through control module control, monitoring device probe signal is connected with control module, a plurality of gas sensors are built in monitoring device probe, PLC module built in control module controls alarm indicator, switch button controls power module in monitoring device body.

[0012] Preferably, the back of the monitoring device body is fixedly provided with a ferromagnetic adsorption device.

[0013] Preferably, the monitoring device probe is built in SF, O, CO, CO and NO gas sensor, and the monitoring device body is provided with the alarm indicator corresponding to each gas sensor.

[0014] Preferably, the monitoring device display screen displays the concentration index of SF, O, CO, CO or NO, and the operation button switches the display of the monitored gas type.

[0015] Preferably, the power module is a dry battery detachably installed at the bottom of the back of the monitoring device body.

[0016] Preferably, the bottom of the monitoring device body is further provided with a buzzer, and the buzzer is linked with the alarm indicator.

[0017] The utility model provides a handheld harmful gas real time monitoring device, through handheld harmful gas real time monitoring device has real time on line monitoring function, can on line monitoring gas concentration in the working environment of staff at present moment all the time, and sends signal light and alarm sound, and can be fixed on surrounding ferromagnetic equipment through ferromagnetic adsorption device, convenient to take and fix detection instrument body, when staff needs to hold the patrol handle or carries out electrical machinery operation, can very conveniently fix monitoring device body on surrounding equipment, and when needing to use detection device, also can very conveniently take down, is suitable for staff to carry out gas real time monitoring in some very difficult working environment, has better applicability, greatly increases the survival condition of staff. ACCURACY OF DRAWINGS

[0018] The utility model will be further described below in connection with the drawings and examples:

[0019] Figure 1 It is the front view of the handheld harmful gas real time monitoring device provided by the utility model.

[0020] Figure 2 This is a rear view of the handheld real-time hazardous gas monitoring device proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the process of the handheld real-time monitoring device for harmful gases proposed in this utility model.

[0022] Figure 4 This is the circuit control diagram of the handheld real-time monitoring device for harmful gases proposed in this utility model.

[0023] Legend: 1. Monitoring device body; 2. Monitoring device display screen; 3. Switch button; 4. Operation button; 5. Alarm indicator light; 6. Monitoring device probe; 7. Ferromagnetic adsorption device. Detailed Implementation

[0024] like Figures 1-4 As shown, this utility model provides a handheld real-time monitoring device for harmful gases, including a monitoring device body 1. The monitoring device body 1 is equipped with a monitoring device display screen 2, a switch button 3, an operation button 4, an alarm indicator light 5, a monitoring device probe 6, and a control module.

[0025] Operation button 4 controls the display screen 2 of the monitoring device via the control module. The probe 6 of the monitoring device is connected to the control module. The probe 6 of the monitoring device has multiple built-in gas sensors. The PLC module built into the control module controls the alarm indicator light 5. The switch button 3 controls the power module inside the main body 1 of the monitoring device.

[0026] Working principle: When in use, staff carry the handheld real-time hazardous gas monitoring device into the enclosed space, turn on switch button 3 to put the monitoring device into normal monitoring state, and display the concentration indicator corresponding to the current gas concentration in the environment through display screen 1 during the monitoring process, so as to know the level of the gas concentration in the current environment.

[0027] Specifically, during the monitoring process, the PLC control module processes the signal input from the gas sensor to obtain the magnitude of the measured gas concentration, and sends a corresponding control signal to the display screen 1 based on the obtained measured gas concentration. The display screen 1 displays the concentration indicator corresponding to the obtained measured gas concentration based on the control signal, and the corresponding gas type exceeding the standard can be selected through the operation button 4.

[0028] like Figure 2 As shown, a ferromagnetic adsorption device 7 is fixedly installed on the back of the monitoring device body 1. If the operator needs to use handheld maintenance tools or electrical appliances for related work, the monitoring device can be fixed to surrounding ferromagnetic equipment through the ferromagnetic adsorption device 7 on the back of the monitoring device for easy operation.

[0029] likeFigure 3 and Figure 4 The monitoring device probe 6 is built-in with gas sensors of SF6, O2, CO, CO2 and NO2, and the monitoring device body 1 is provided with the alarm indicator lamp 5 corresponding to each gas sensor. If the handheld gas real-time monitoring device sends an alarm signal, the alarm indicator lamp 5 is bright, which indicates that the measured gas concentration in the current environment has exceeded the standard, and is easy to cause explosion and poisoning of workers.

[0030] As a preferred embodiment of the utility model, the concentration index of SF6, O2, CO, CO2 or NO2 is displayed in the display screen 2 of the monitoring device, and the type of the monitored gas is switched through the operation button 4. The switching of different gas detection display modules in the display screen 2 of the monitoring device is performed through the operation button 4.

[0031] As a preferred embodiment of the utility model, in order to facilitate the replacement of the power supply, the power module is a dry battery which can be detachably installed at the bottom of the back of the monitoring device body 1.

[0032] As a preferred embodiment of the utility model, in order to enhance the alarm effect of the monitoring device after the dangerous gas exceeds, the monitoring device body 1 is further provided with a buzzer, and the buzzer is linked with the alarm indicator lamp 5.

Claims

1. A hand-held real-time monitoring device of harmful gases, comprising a monitoring device body (1), characterized in that: The monitoring device body (1) is provided with a monitoring device display screen (2), a switch button (3), an operation button (4), an alarm indicator lamp (5), a monitoring device probe (6) and a control module; The operation button (4) is connected to the monitoring device display screen (2) through the control module, the monitoring device probe (6) is signal-connected to the control module, the monitoring device probe (6) is internally provided with a plurality of gas sensors, the PLC module built in the control module is control-connected to the alarm indicator lamp (5), and the switch button (3) is control-connected to the power module in the monitoring device body (1).

2. The hand-held real-time hazardous gas monitoring device of claim 1, wherein: The monitoring device body (1) is fixedly provided with a ferromagnetic adsorption device (7) on the back.

3. The hand-held real-time hazardous gas monitoring device of claim 1, wherein: The monitoring device probe (6) is internally provided with SF6, O2, CO, CO2 and NO2 gas sensors, and the monitoring device body (1) is provided with the alarm indicator lamp (5) corresponding to each gas sensor.

4. The hand-held real-time hazardous gas monitoring device of claim 3, wherein: The monitoring device display screen (2) displays the concentration indexes of SF6, O2, CO, CO2 or NO2, and the gas type to be monitored is switched through the operation button (4).

5. The hand-held real-time hazardous gas monitoring device of claim 1, wherein: The power module is a dry battery which can be detachably installed at the bottom of the back of the monitoring device body (1).

6. The hand-held real-time hazardous gas monitoring device of claim 1, wherein: The monitoring device body (1) is further provided with a buzzer which is linked to the alarm indicator lamp (5).

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