Intelligent explosion-proof gas sensor

Abstract

The utility model provides an intelligent explosion-proof gas sensor, including display, alarm lamp, gas sensor and monitoring pipe, the bottom of monitoring pipe is provided with a plurality of detection branch pipe, the detection branch pipe is threaded connection with inspection seat, the gas sensor is installed in the inspection seat, the detection branch pipe is threaded connection with the inspection seat. The display is fixedly mounted at the top of the monitoring pipe; the display, the alarm lamp and the gas sensor are electrically connected with the PLC; the gas sensor installed in the inspection seat can monitor multiple groups of explosive gases, when the concentration of the explosive gases in the air exceeds the standard, the gas sensor sends a standard exceeding signal to the PLC, and the PLC drives the alarm lamp to sound.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of explosion -proof gas response equipment, especially a kind of intelligent explosion -proof gas inductor. BACKGROUND

[0002] With the acceleration of industrialization and urbanization process, and the improvement of people's safety consciousness, the demand for intelligent explosion -proof gas inductor is increasing. Especially in the field of environmental monitoring, industrial safety monitoring and public safety, an intelligent gas inductor capable of real-time monitoring of gas composition and concentration in the environment is needed, which has explosion -proof function. The monitoring of gas is usually detected by corresponding gas sensor, but with the accumulation of use time, the gas sensor usually appears misalignment phenomenon, therefore, it becomes an urgent problem to provide an intelligent explosion -proof gas inductor with calibration function. SUMMARY

[0003] (1) technical problem to be solved

[0004] In order to solve the above problems of prior art, the utility model provides an intelligent explosion -proof gas inductor.

[0005] (2) technical scheme

[0006] In order to achieve the above purpose, the main technical scheme adopted by the utility model includes:

[0007] An intelligent explosion -proof gas inductor, comprising display, alarm lamp, gas sensor and monitoring pipe;

[0008] The bottom of the monitoring pipe is provided with a plurality of detection branch pipes, and the detection branch pipes are threadedly connected with inspection seats;

[0009] The gas sensor is installed in the inspection seat;

[0010] The display is fixedly installed on the top of the monitoring pipe;

[0011] The display, alarm lamp and gas sensor are electrically connected with PLC controller.

[0012] Preferably, the detection branch pipe is provided with four, and the gas sensor is also provided with four, and the four gas sensors are oxygen sensor, carbon monoxide sensor, methane gas sensor and hydrogen sensor respectively.

[0013] Preferably, it further includes calibration mechanism, and the calibration mechanism includes standard gas cylinder, gas pump and three-way control valve;

[0014] The two ends of the monitoring pipe are respectively provided with first gas pipe and exhaust pipe;

[0015] The standard gas cylinders are provided in plurality, the gases in the plurality of standard gas cylinders correspond to the gases detected by the gas sensors one by one, and the standard gas cylinders are connected to the first gas conveying pipe through gas conveying branch pipes;

[0016] The three-way control valve and the gas conveying pump are sequentially installed on the first gas conveying pipe, and the three-way control valve is further connected with a second gas conveying pipe.

[0017] Preferably, the gas conveying branch pipes and the exhaust pipe are both provided with electric control valves.

[0018] Preferably, the calibration mechanism further comprises a timer, and the timer, the gas conveying pump, the three-way control valve and the electric control valves are electrically connected with the PLC controller.

[0019] (Three) beneficial effects

[0020] The utility model discloses the beneficial effects are:

[0021] 1. the gas sensor of installation in the inspection seat can monitor multiple groups of explosive gas, when the explosive gas concentration in air exceeds the standard, the gas sensor sends the overproof signal to the PLC controller, and the PLC controller drives the alarm lamp to respond;

[0022] 2. the standard gas cylinder inputs the standard concentration gas into the monitoring pipe, and the standard concentration gas is detected in concentration through the corresponding gas sensor, and the PLC controller compares the value obtained by the gas sensor and the concentration value of the standard concentration gas, thereby realizing calibration, ensuring the detection accuracy of the gas sensor, and the timer can realize the timing calibration of the gas sensor. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is a structure schematic view of an intelligent anti-explosion gas sensor;

[0024] Fig. 2 It is a structure schematic view of the second embodiment of the utility model.

[0025] Mark explanation:

[0026] 1. monitoring pipe;

[0027] 2. display;

[0028] 3. alarm lamp;

[0029] 4. detection branch pipe;

[0030] 5. inspection seat;

[0031] 6. PLC controller;

[0032] 7. gas conveying pump;

[0033] 8. Standard gas cylinder;

[0034] 9. Three-way control valve;

[0035] 10. Electric control valve. DETAILED DESCRIPTION

[0036] In order to better explain the utility model, so as to facilitate understanding, below combining with the drawings, through specific embodiment, the utility model is described in detail.

[0037] Please refer to Figs. 1-2 The utility model provides a kind of intelligent explosion-proof gas sensor, including display 2, alarm lamp 3, gas sensor and monitoring pipe 1;

[0038] The monitoring pipe 1 bottom is provided with multiple detection branch pipes 4, and the detection branch pipe 4 is threadedly connected with inspection seat 5;

[0039] The gas sensor is installed in the inspection seat 5;

[0040] The display 2 is fixedly installed at the top of the monitoring pipe 1;

[0041] The display 2, alarm lamp 3 and gas sensor are all electrically connected with PLC controller 6;

[0042] When using, the gas sensor installed in the inspection seat 5 can monitor multiple groups of explosive gas, when the concentration of explosive gas in air exceeds the standard, the gas sensor sends the exceeding standard signal to PLC controller 6, and PLC controller 6 drives alarm lamp 3 to ring.

[0043] It should be noted that: when different explosive gas exceeds the standard, the color of alarm lamp 3 also differs.

[0044] In the embodiment, the detection branch pipe 4 is provided with four, and the gas sensor is also provided with four, and the four gas sensors are oxygen sensor, carbon monoxide sensor, methane gas sensor and hydrogen sensor respectively, and the four gas sensors can monitor whether the concentration of oxygen, carbon monoxide, methane and hydrogen exceeds the standard respectively.

[0045] In the embodiment, it also includes calibration mechanism, and the calibration mechanism includes standard gas cylinder 8, gas conveying pump 7 and three-way control valve 9;

[0046] The two ends of the monitoring pipe 1 are respectively provided with first gas conveying pipe and exhaust pipe;

[0047] The standard gas cylinder 8 is provided with multiple, and the gas in multiple standard gas cylinder 8 corresponds to the gas detected by gas sensor one by one, and the standard gas cylinder 8 is connected with the first gas conveying pipe by gas conveying branch pipe;

[0048] The three-way control valve 9 and the gas delivery pump 7 are sequentially installed on the first gas delivery pipe, and the three-way control valve 9 is further connected with a second gas delivery pipe, and the gas delivery branch pipe and the exhaust pipe are both provided with an electric control valve 10, and the calibration mechanism further comprises a timer, and the timer, the gas delivery pump 7, the three-way control valve 9 and the electric control valve 10 are all electrically connected with the PLC controller 6.

[0049] In use, the standard gas cylinder 8 inputs standard concentration gas into the monitoring pipe 1, the corresponding gas sensor detects the concentration of the standard concentration gas, the PLC controller 6 compares the obtained value of the gas sensor with the concentration value of the standard concentration gas, thereby realizing calibration and ensuring the detection accuracy of the gas sensor, and the timer can realize the timing calibration of the gas sensor.

[0050] The working principle of the utility model is as follows:

[0051] The gas sensor installed in the inspection seat 5 can monitor multiple groups of explosive gas, when the concentration of explosive gas in the air exceeds the standard, the gas sensor sends an exceeding signal to the PLC controller 6, and the PLC controller 6 drives the alarm lamp 3 to sound;

[0052] The standard gas cylinder 8 inputs standard concentration gas into the monitoring pipe 1, the corresponding gas sensor detects the concentration of the standard concentration gas, the PLC controller 6 compares the obtained value of the gas sensor with the concentration value of the standard concentration gas, thereby realizing calibration and ensuring the detection accuracy of the gas sensor, and the timer can realize the timing calibration of the gas sensor.

[0053] The circuit and electronic components and modules are all prior art, and those skilled in the art can realize them without further description, and the content protected by the utility model does not involve the improvement of software and methods.

[0054] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation or direct or indirect application in related technical fields according to the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

[0055] In addition, it should be understood that, although the present specification is described according to the embodiments, not every embodiment only contains an independent technical scheme, and the description mode of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical scheme in each embodiment can be combined to form other embodiments that those skilled in the art can understand.

Claims

1. An intelligent explosion-proof gas sensor, characterized in that, The monitoring pipe is provided with a display, an alarm lamp, a gas sensor and a monitoring pipe; A plurality of detection branch pipes are arranged at the bottom of the monitoring pipe, and a detection seat is threadedly connected to the detection branch pipes; The gas sensor is installed in the detection seat; The display is fixedly installed at the top of the monitoring pipe; The display, the alarm lamp and the gas sensor are electrically connected to the PLC controller.

2. The intelligent explosion-proof gas sensor according to claim 1, characterized in that, Four detection branch pipes and four gas sensors are arranged, and the four gas sensors are oxygen sensor, carbon monoxide sensor, methane gas sensor and hydrogen sensor.

3. The intelligent explosion-proof gas sensor according to claim 1, wherein, The calibration mechanism includes a standard gas cylinder, a gas conveying pump and a three-way control valve; First gas conveying pipes and exhaust pipes are arranged at two ends of the monitoring pipe; A plurality of standard gas cylinders are arranged, and the gases in the standard gas cylinders correspond to the gases detected by the gas sensors one by one, and the standard gas cylinders are connected to the first gas conveying pipes through gas conveying branch pipes; The three-way control valve and the gas conveying pump are sequentially installed on the first gas conveying pipes, and a second gas conveying pipe is further connected to the three-way control valve.

4. The intelligent explosion-proof gas sensor according to claim 3, wherein, Electric control valves are arranged on the gas conveying branch pipes and the exhaust pipes.

5. The intelligent explosion-proof gas sensor according to claim 4, wherein, The calibration mechanism further includes a timer, and the timer, the gas conveying pump, the three-way control valve and the electric control valves are electrically connected to the PLC controller.

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