CN215953440U - Remote monitor for hydrogen sulfide concentration - Google Patents
Remote monitor for hydrogen sulfide concentration Download PDFInfo
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- CN215953440U CN215953440U CN202122113753.1U CN202122113753U CN215953440U CN 215953440 U CN215953440 U CN 215953440U CN 202122113753 U CN202122113753 U CN 202122113753U CN 215953440 U CN215953440 U CN 215953440U
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Abstract
The application discloses a remote monitor for hydrogen sulfide concentration, which comprises a microprocessor, a hydrogen sulfide detector, a wireless communication part, a data storage module, a display and an alarm, wherein the hydrogen sulfide detector, the wireless communication part, the data storage module, the display and the alarm are connected to the microprocessor; the hydrogen sulfide detector is used for detecting concentration data of hydrogen sulfide and transmitting the concentration data to the microprocessor; the data storage module is used for storing concentration data; the display is used for displaying the concentration data; the microprocessor coordinates the work of the hydrogen sulfide detector, the wireless communication part, the data storage module and the display, compares the concentration data with the set data, and orders the alarm to start and send out warning when the concentration data reaches or exceeds the set data. The method can improve the timeliness of the monitoring of the concentration of the hydrogen sulfide gas, find the standard exceeding problem of the concentration of the hydrogen sulfide gas in the chemical process in the shortest time, and ensure the safe operation of the whole chemical process.
Description
Technical Field
The utility model relates to a remote monitor for hydrogen sulfide concentration.
Background
In chemical enterprises, hydrogen sulfide gas is a common chemical harmful factor, is colorless, has odor of smelly eggs, has main target devices of central nervous system and respiratory system and can be accompanied with damage of multiple organs such as heart and the like, and worksThe allowable concentrations of chemicals in the site air are: MAC 10mg/m3. If the worker needs to enter the environment, there may be hysteresis by only using the wearable hydrogen sulfide alarm device, because if the inhalation concentration reaches 1000mg/m3Acute poisoning can occur within a few seconds, and the patient dies due to respiratory paralysis after the respiration is accelerated. Therefore, the remote hydrogen sulfide concentration real-time monitoring and alarming system is very important, and workers can enter the environment after confirming safety.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a remote monitor for hydrogen sulfide concentration, which comprises a hydrogen sulfide detector, a wireless communication part, a data storage module, a display, an alarm and a microprocessor;
the hydrogen sulfide detector, the wireless communication part, the data storage module, the alarm and the display are respectively connected with the microprocessor, and the wireless communication part is connected with an external remote server and used for sending data to the remote server;
the hydrogen sulfide detector is used for detecting concentration data of hydrogen sulfide and transmitting the concentration data to the microprocessor;
the data storage module is used for storing concentration data;
the display is used for displaying concentration data;
the microprocessor coordinates the work of the hydrogen sulfide detector, the wireless communication part, the data storage module and the display, compares the concentration data with the set data, and orders the alarm to start and send out warning when the concentration data reaches or exceeds the set data.
Specifically, the hydrogen sulfide detector adopts an H2S-A1 type electrochemical hydrogen sulfide sensor. The measuring range of the hydrogen sulfide detector is 0-100 ppm, the resolution is 0.05ppm, the response time is less than 20s, and the measured concentration data of the hydrogen sulfide are transmitted to the microprocessor module for further processing.
The electrochemical hydrogen sulfide gas sensor works according to an electrochemical principle, an electrochemical oxidation process of gas to be detected on a working electrode in an electrolytic cell is utilized, the working electrode and a reference electrode of the electrolytic cell are kept at a proper potential through an electronic circuit, electrochemical oxidation of the gas to be detected can occur under the potential, and because the Faraday current generated by oxygen in oxidation and reduction reactions is very small and can be ignored, the current generated by the electrochemical reaction of the gas to be detected is in direct proportion to the concentration of the gas to be detected and follows Faraday's law. Thus, the concentration of the gas to be measured can be determined by measuring the magnitude of the current.
The wireless communication part adopts a USR-G780V 2 type 4G wireless router. The wireless router is a wireless transceiver which is long in distance and low in power consumption, is a high-performance wireless transceiver of the Internet of things, is internally provided with a matching capacitor, and can be well matched with a microprocessor.
The data storage module employs an AT24C04 chip. The AT24C04 chip is a 4Kb electrically erasable memory chip, and the data in the chip can be stored for 100 years under the condition of power failure. During operation, the collected concentration data are stored in the data storage module and can be sent to an external remote server through the wireless communication part.
The microprocessor uses STM32F103 series chips. The microprocessor is used as the core of the whole remote monitor, and the hydrogen sulfide detector measures, stores data, wirelessly communicates, alarms and displays. The chips of the STM32F103 series achieve overall control. The chip has rich interfaces, complete development tools and strong real-time property, and can detect the system in real time very often.
Specifically, the alarm is at least one of an alarm bell or an alarm lamp.
The hydrogen sulfide concentration in the corresponding space can be remotely monitored in real time by utilizing the method, so that the worker can enter the space after confirming safety. Simultaneously, this application also makes things convenient for the staff to know in real time whether have hydrogen sulfide to reveal in the device in each space in the control chamber to in time eliminate the leak source. For example, in the production process of products such as dry gas liquid hydrocarbon, due to incomplete upstream gas desulfurization and liquid-carrying gas, two products such as dry gas and liquid hydrocarbon can carry hydrogen sulfide to different degrees in the production process, and if leakage is caused by equipment aging damage, the alarm position can be known at the first time through the remote monitor.
The application has the following beneficial effects:
(1) the electrochemical hydrogen sulfide gas sensor is used for monitoring the concentration of hydrogen sulfide gas in the space in real time, so that the concentration of hydrogen sulfide gas can be found out at the first time, and workers in the space are reminded to evacuate timely. Through simulation tests, the monitoring success rate of the electrochemical hydrogen sulfide gas sensor in the device reaches more than 99.5%. Compared with the prior methods such as a wearable hydrogen sulfide alarm instrument, the method has the advantages of greatly improving the precision, the effectiveness, the safety and the like.
(2) The measured gas concentration data are processed by the STM32 microprocessor and then displayed on the display, and are transmitted to the background terminal through the communication module, so that the concentration of the hydrogen sulfide gas in the space can be monitored in real time on the background platform, and the personnel in the space can be evacuated by alarming when the concentration of the hydrogen sulfide gas in the space exceeds the set data.
(3) The hydrogen sulfide gas concentration data obtained by long-term monitoring can be used as production data information to provide data support for later-stage modification and promotion
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a circuit connection diagram of a microprocessor.
Detailed Description
Referring to fig. 1, a remote monitor for hydrogen sulfide concentration includes a hydrogen sulfide detector, a wireless communication unit, a data storage module, a display and a microprocessor; the hydrogen sulfide detector, the wireless communication part, the data storage module, the alarm and the display are respectively connected with the microprocessor, and the wireless communication part is connected with an external remote server and used for sending data to the remote server.
In the embodiment, the hydrogen sulfide detector adopts an H2S-A1 type electrochemical hydrogen sulfide sensor, the measurement range of the hydrogen sulfide detector is 0-100 ppm, the resolution is 0.05ppm, the response time is less than 20s, and the measured concentration data of the hydrogen sulfide are transmitted to a microprocessor module for further processing.
The wireless communication part adopts a USR-G780V 2 type 4G wireless router. The wireless router is a wireless transceiver which is long in distance and low in power consumption, is a high-performance wireless transceiver of the Internet of things, is internally provided with a matching capacitor, and can be well matched with a microprocessor.
The data storage module employs an AT24C04 chip. The AT24C04 chip is a 4Kb electrically erasable memory chip, and the data in the chip can be stored for 100 years under the condition of power failure. During operation, the collected concentration data are stored in the data storage module and can be sent to an external remote server through the wireless communication part.
The microprocessor adopts STM32F103 series chips, and specifically adopts STM32F103ZET6 of STM32 series 32-bit processors of Italian semiconductor company. TM32F103ZET6 is a microprocessor with processing speed of 72MHz, and has 512KB of flash program memory inside, up to 64KB of SRAM. Also, the static memory controller with 4 chip selects supports CF card, SRAM, PSRAM, NOR and NAND memories. The control terminal uses 3 USARTs for communication with the Wi-Fi communication module, communication with the GPRS communication module, and a debugging interface, respectively. The timer 2 channel 2 of the microprocessor is used for receiving signals, the 1 st, 2 nd and 3 rd pins of the PD port are connected with RST, SID and CLK 3 interfaces of the DS1203, and the timer 3 channel 3 is used as output to drive the hydrogen sulfide detector. FIG. 2 is a circuit connection diagram of an STM32 microprocessor.
In this embodiment, the alarm is an alarm bell. The microprocessor coordinates the work of the hydrogen sulfide detector, the wireless communication part, the data storage module and the display, compares the concentration data with the set data, and orders the alarm bell to start and send out warning when the concentration data reaches or exceeds the set data. In this example, the data was set to 8mg/m3。
The display specifically employs a liquid crystal display for displaying density data.
Claims (6)
1. A remote monitor for hydrogen sulfide concentration is characterized by comprising a hydrogen sulfide detector, a wireless communication part, a data storage module, a display, an alarm and a microprocessor;
the hydrogen sulfide detector, the wireless communication part, the data storage module, the alarm and the display are respectively connected with the microprocessor, and the wireless communication part is connected with an external remote server and used for sending data to the remote server;
the hydrogen sulfide detector is used for detecting concentration data of hydrogen sulfide and transmitting the concentration data to the microprocessor;
the data storage module is used for storing concentration data;
the display is used for displaying concentration data;
the microprocessor coordinates the work of the hydrogen sulfide detector, the wireless communication part, the data storage module and the display, compares the concentration data with the set data, and orders the alarm to start and send out warning when the concentration data reaches or exceeds the set data.
2. The remote monitor of claim 1,
the hydrogen sulfide detector adopts an H2S-A1 type electrochemical hydrogen sulfide sensor.
3. The remote monitor of claim 1,
the wireless communication part adopts a USR-G780V 2 type 4G wireless router.
4. The remote monitor of claim 1,
the data storage module employs an AT24C04 chip.
5. The remote monitor of claim 1,
the microprocessor uses STM32F103 series chips.
6. The remote monitor of claim 1, wherein the alarm is at least one of an alarm bell or an alarm light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122113753.1U CN215953440U (en) | 2021-09-02 | 2021-09-02 | Remote monitor for hydrogen sulfide concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122113753.1U CN215953440U (en) | 2021-09-02 | 2021-09-02 | Remote monitor for hydrogen sulfide concentration |
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| Publication Number | Publication Date |
|---|---|
| CN215953440U true CN215953440U (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122113753.1U Active CN215953440U (en) | 2021-09-02 | 2021-09-02 | Remote monitor for hydrogen sulfide concentration |
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2021
- 2021-09-02 CN CN202122113753.1U patent/CN215953440U/en active Active
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