CN218957241U

CN218957241U - Combustible gas alarm monitoring system

Info

Publication number: CN218957241U
Application number: CN202223284218.3U
Authority: CN
Inventors: 莫善荃; 林辉; 刘力; 张蔚; 司小剑; 廖汝豪; 杨斌; 卢晓兵; 晏江平
Original assignee: Sinopharm Zhijun Shenzhen Pingshan Pharmaceutical Co Ltd
Current assignee: Sinopharm Zhijun Shenzhen Pingshan Pharmaceutical Co Ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-02
Anticipated expiration: 2032-12-07

Abstract

The combustible gas alarm monitoring system comprises a combustible gas host, a touch screen, a switch, a PLC, an Internet of things cloud box, an Internet of things server and a remote monitoring terminal, wherein each combustible gas host is connected with a combustible gas probe for detecting the concentration of combustible gas; the switch is in communication connection with the touch screen through a second RS485 bus so as to realize communication between the touch screen and the combustible gas host; the touch screen and the PLC are respectively connected with the switch through modbus TCP communication to realize communication between the touch screen and the PLC; the internet of things cloud box is connected with the switch through modbus TCP communication to realize communication between the internet of things cloud box and the PLC, and the PLC is connected with an alarm for alarming output; and the Internet of things cloud server is communicated with the Internet of things cloud box accessed to the Internet and the remote monitoring terminal. The method realizes remote information monitoring of the concentration of the combustible gas in the area to be monitored.

Description

Combustible gas alarm monitoring system

Technical Field

The utility model relates to the technical field of combustible gas monitoring, in particular to a combustible gas alarm monitoring system.

Background

In pharmaceutical and brewing workshops, volatile and flammable alcohol gases are often present; volatile and flammable benzene gases are often generated in paint storage, paint stirring and paint spraying workshops for sheet metal processing, and after the combustible gases reach a certain concentration in a semi-closed workshop, the combustible and explosive safety production risks exist.

Therefore, there is a need for a system that can comprehensively monitor the combustible gas in the relevant areas of the workshops and take relevant measures in time to ensure the production safety.

Disclosure of Invention

Based on the above, the utility model provides a flammable gas alarm monitoring system, which is characterized in that at least one flammable gas host for monitoring the concentration of the flammable gas is respectively arranged in each to-be-monitored area in a plurality of to-be-monitored areas, and the monitoring of the concentration of the flammable gas on site can be realized through the network topology formed by a touch screen, a switch and a PLC.

To achieve the above object, the present utility model provides a combustible gas alarm monitoring system, comprising: flammable gas host computer, touch-sensitive screen, switch, PLC, thing allies oneself with cloud box, thing networking server and remote monitoring terminal, wherein:

the combustible gas hosts are arranged in a plurality of areas to be monitored, and each combustible gas host is connected with a combustible gas probe for detecting the concentration of the combustible gas;

the plurality of combustible gas hosts are connected to a first RS485 bus, the switch is in communication connection with the first RS485 bus through an Ethernet and/or a wireless network bridge, and the switch is in communication connection with the touch screen through a second RS485 bus so as to realize communication between the touch screen and the combustible gas hosts;

the PLC is set as a modbus TCP master station, the touch screen is set as a modbus TCP slave station, and the touch screen and the PLC are respectively connected with the switch through modbus TCP communication so as to realize communication between the touch screen and the PLC;

the internet of things cloud box is connected with the switch through modbus TCP communication to realize communication between the internet of things cloud box and the PLC, and the PLC is connected with an alarm for alarming output;

and the Internet of things cloud server is communicated with the Internet of things cloud box accessed to the Internet and the remote monitoring terminal.

As a further preferable technical scheme of the utility model, at least one first RS485 bus is provided, each first RS485 bus is connected with at least one flammable gas host, and a first RS 485-to-Ethernet module positioned between the flammable gas host and the Ethernet and/or wireless network bridge is arranged on the first RS485 bus.

As a further preferable technical scheme of the utility model, a second RS485 conversion Ethernet module positioned between the touch screen and the switch is arranged on the second RS485 bus.

As a further preferable technical scheme of the utility model, the model of the touch screen is SUKON HC-Suk8070-R, and a COM1 port or/and a COM2 port of the touch screen is connected with the second RS485 bus so as to realize communication between the touch screen and a flammable gas host.

As a further preferable technical scheme of the utility model, the model of the PLC is SIEMENS S7-224UN, and the PLC and the touch screen are connected with the switch through RJ45 ports so as to realize communication between the PLC and the touch screen.

As a further preferable technical scheme of the utility model, the remote monitoring terminal is a mobile phone or a computer.

As a further preferable technical scheme of the utility model, the type of the combustible gas host is a Siamibokang combustible gas host, a Teamibove combustible gas host or a Xinhairui combustible gas host.

The combustible gas alarm monitoring system provided by the utility model has the following beneficial effects that by adopting the technical scheme:

1) According to the utility model, at least one flammable gas host for monitoring the concentration of the flammable gas is respectively arranged in each to-be-monitored area in the plurality of to-be-monitored areas, and the monitoring of the concentration of the flammable gas on site can be realized through the network topology formed by the touch screen, the switch and the PLC;

2) The network topology is also provided with the Internet of things cloud box, the Internet of things server and the remote monitoring terminal, so that the concentration of the combustible gas in the area to be monitored can be monitored remotely;

3) According to the utility model, the data is acquired by utilizing the RS485 serial port of the touch screen, so that the cost investment of the RS485 expansion module can be saved, the special Ethernet of an enterprise is flexibly utilized, the data of the RS485 port of the on-site combustible gas host is collected to the RS485 port of the PLC in a concentrated manner, and cables for RS485 communication are not required to be paved independently, so that a great amount of labor and material investment is saved, and the cost is saved.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic diagram of a network topology of an embodiment provided by the combustible gas alarm monitoring system of the present utility model;

fig. 2 is a schematic diagram of a network topology of an embodiment provided by the combustible gas alarm monitoring system of the present utility model.

In the figure: 1. the system comprises a combustible gas probe, a combustible gas host, a first RS485 conversion Ethernet module, a switch, a second RS485 conversion Ethernet module, a warning device, a PLC, a touch screen, a 9, an Internet of things cloud box, a wireless network bridge, a computer, a mobile phone and a wireless network bridge, wherein the combustible gas probe, the combustible gas host, the first RS485 conversion Ethernet module, the second RS485 conversion Ethernet module, the warning device, the 7, the PLC, the 8, the touch screen, the 9 and the Internet of things cloud box are arranged in sequence.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The utility model will be further described with reference to the drawings and detailed description. The terms such as "upper", "lower", "left", "right", "middle" and "a" in the preferred embodiments are merely descriptive, but are not intended to limit the scope of the utility model, as the relative relationship changes or modifications may be otherwise deemed to be within the scope of the utility model without substantial modification to the technical context.

As shown in fig. 1 and 2, the utility model provides a flammable gas alarm monitoring system, which comprises a flammable gas host 2, a touch screen 8, a switch 4, a PLC7, an internet of things cloud box 9, an internet of things server and a remote monitoring terminal, wherein:

the plurality of the flammable gas hosts 2 are arranged in a plurality of areas to be monitored, and each flammable gas host 2 is connected with a flammable gas probe 1 for detecting the concentration of the flammable gas;

the plurality of the flammable gas hosts 2 are connected to a first RS485 bus, the switch 4 is in communication connection with the first RS485 bus through an Ethernet and/or wireless network bridge 10, the switch 4 is in communication connection with the touch screen 8 through a second RS485 bus, so that communication between the touch screen 8 and the flammable gas hosts 2 is realized, and the touch screen 8 can acquire flammable gas concentration signals of each flammable gas probe 1 through the communication, wherein the Ethernet refers to a special Ethernet in the company or in a regional range;

the PLC7 is set as a modbus TCP master station, the touch screen 8 is set as a modbus TCP slave station, the touch screen 8 and the PLC7 are respectively connected with the switch 4 through modbus TCP communication so as to realize communication between the touch screen 8 and the PLC7, so that the PLC reads a combustible gas concentration signal acquired by the touch screen 8 through further communication, and meanwhile, the PLC issues the combustible gas concentration signal to the touch screen 8 for display, or generates a generated report for display on the touch screen 8;

the internet of things cloud box 9 is connected with the switch 4 through modbus TCP communication to realize communication between the internet of things cloud box 9 and the PLC, the PLC7 is connected with an alarm 6 for alarm output, so that the PLC issues a combustible gas concentration signal to the internet of things cloud box 9 and simultaneously controls the alarm 6 to perform alarm output;

the Internet of things cloud server is communicated with the Internet of things cloud box 9 and the remote monitoring terminal, and the remote monitoring terminal is used for acquiring communication information of the Internet of things cloud box 9 in real time through the Internet, so that the purposes of alarming and monitoring the concentration of combustible gas in the cloud are achieved. The remote monitoring terminal is a mobile phone 12 or a computer 11

In a specific implementation, at least one first RS485 bus is provided, each first RS485 bus is connected to at least one flammable gas host 2, and a first RS 485-to-ethernet module 3 located between the flammable gas host 2 and the ethernet and/or wireless bridge 10 is provided on the first RS485 bus. And a second RS485 conversion Ethernet module 5 positioned between the touch screen 8 and the switch 4 is arranged on the second RS485 bus.

Specifically, the model of the touch screen 8 is SUKON HC-Suk8070-R, the COM1 port or/and COM2 port of the touch screen 8 is/are connected with the second RS485 bus to realize communication between the touch screen 8 and the flammable gas host 2, the model of the PLC is SIEMENS S7-224un, and the PLC and the touch screen 8 are connected with the switch 4 through RJ45 ports to realize communication between the PLC and the touch screen 8.

In another implementation, the type of the flammable gas host 2 is a siennamomum flammable gas host 2, a texan flammable gas host 2 or a Xinhairui flammable gas host 2.

The system principle of the combustible gas alarm monitoring system of the embodiment is as follows:

firstly, a combustible gas concentration signal of a combustible gas host 2 is read through a first RS485 bus and is recorded as a 485 signal, then the 485 signal is converted into an Ethernet signal through a first RS485 conversion Ethernet module 3, data is transmitted to a switch 4 of the system integrated device of the utility model of a fire control room through an Ethernet (or a wireless network bridge 10) of company internal equipment, and then the switch 4 transmits the data to an Ethernet interface of a second RS485 conversion Ethernet module 5; the second RS485 conversion Ethernet module 5 converts the Ethernet signal of the concentration of the combustible gas into a 485 signal again, and the 485 signal is transmitted to com1 or com2 of the touch screen 8;

the touch screen 8 is connected with the PLC7 through the switch 4 in an Ethernet way, the PLC7 is set as a modbus TCP master station, and the touch screen 8 is set as a modbus TCP slave station; the touch screen 8 directly transmits the combustible gas concentration data read from com1 and com2 into the PLC7 in a modbus TCP secondary station mode without any processing, and the PLC7 distributes the concentration data to the Internet of things cloud box and the touch screen 8 in a modbus TCP primary station mode after processing the concentration data to monitor, display, generate a report and the like.

And the cloud box of the Internet of things is used as a modbus TCP slave station to read the combustible gas concentration data of the PLC7 and send the data to the cloud server through a wireless network.

And the cloud server stores and processes the combustible gas concentration data from the cloud box of the Internet of things, and forms a real-time monitoring picture, report generation, history curve generation, abnormal alarm information generation and short message pushing and WeChat pushing. The internet of things cloud box in this embodiment requires to insert a mobile phone 12 card (or connect an ethernet cable connected to an external network to a WLAN end of the cloud box) with a GPRS flow function, so that the internet of things cloud box and the internet keep a normal networking state, and normal communication between the internet of things cloud box and a cloud server can be ensured.

If the concentration of the combustible gas exceeds the standard, the on-site combustible gas host 2 sends out an audible and visual alarm from the alarm 6, meanwhile, the alarm 6 connected with the PLC7 in the system also sends out the audible and visual alarm, the authorized speed control cloud account in the Internet of things server also receives alarm information, and the authorized mobile phone 12 or the computer 11 also receives the concentration exceeding abnormal short message.

The system can realize unattended remote alarm duty for 24 hours in the whole day and find out abnormal data of the combustible gas probe 1 in advance. When the combustible gas leaks and the concentration exceeds the set value, the site detector, the alarm host of the site office and the monitoring system host of the fire-fighting central control room can simultaneously send out audible and visual alarm, and meanwhile, the mobile phone 12 gives out a short message alarm, so that four-level alarm is achieved. The real-time data, the historical data and the like of each combustible gas probe 1 can be checked by logging in the combustible gas online monitoring system through the micro-signal public numbers (or APP) of the computer 11 and the mobile phone 12 at any time.

The effect of this embodiment combustible gas alarm monitoring system illustrates:

when the PLC7 with the function of the modbus TCP cannot meet the use requirement, the PLC7 is used as a modbus TCP master station, and the touch screen 8 supporting the modbus TCP is used as a modbus TCP slave station to communicate through the Ethernet. The equipment data of the site RS485 port are collected by the RS485 port of the touch screen 8, and then the data are forwarded to the V storage area of the PLC7 through the internal register of the touch screen 8. After the data is processed, the data is issued to terminal equipment such as a touch screen 8 and a cloud box for display and storage through a modbus TCP service. The utility model collects data by utilizing the RS485 of the touch screen 8, and can save the cost investment of the RS485 expansion module.

The utility model integrates the RS485 conversion Ethernet module in the market into the application of system integration, uses the Ethernet in the enterprise, uses the RS485 conversion Ethernet module to directly collect the equipment data of the site RS485 port to the RS485 port of the PLC7, does not need to independently lay a cable for RS485 communication, and saves a great deal of investment of manpower and material resources.

The utility model establishes communication with the flammable gas host 2 through the PLC7 controller, and improves the capability of additionally expanding control functions (such as audible and visual alarm, fire-fighting equipment control and the like).

The combustible gas alarm detection system not only realizes the on-site alarm of a probe (timely reminds on-site operators) and the alarm of an office combustible gas host machine 2 (timely informs workshop on-site managers), but also has a fire-fighting room (the installation position of a control cabinet of the system of the utility model is provided with a touch screen 8, a switch 4, a PLC and an Internet of things cloud box 9 in the control cabinet), the real-time concentration monitoring of the touch screen 8 (suitable for on-site security on duty viewing), and the remote mobile phone 12 and the computer 11 for cloud monitoring production report forms and micro-message short message alarm (suitable for the manager to monitor and view at any time), thereby effectively reducing the safety risk of the combustible gas.

While particular embodiments of the present utility model have been described above, it will be appreciated by those skilled in the art that these are merely illustrative, and that many variations or modifications may be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined only by the appended claims.

Claims

1. A combustible gas alarm monitoring system, comprising: flammable gas host computer, touch-sensitive screen, switch, PLC, thing allies oneself with cloud box, thing networking server and remote monitoring terminal, wherein:

2. The combustible gas alarm monitoring system according to claim 1, wherein at least one first RS485 bus is provided, each first RS485 bus is connected with at least one combustible gas host, and a first RS 485-to-ethernet module located between the combustible gas host and the ethernet and/or wireless network bridge is provided on the first RS485 bus.

3. The combustible gas alarm monitoring system of claim 1 wherein a second RS485 conversion ethernet module is provided on the second RS485 bus between the touch screen and the switch.

4. The combustible gas alarm monitoring system according to claim 1, wherein the type of the touch screen is SUKON HC-Suk8070-R, and a COM1 port or/and a COM2 port of the touch screen is/are connected with the second RS485 bus to realize communication between the touch screen and a combustible gas host.

5. The combustible gas alarm monitoring system of claim 4 wherein the PLC is of the type SIEMENS S7-224un, the PLC and the touch screen each being connected to the switch through an RJ45 port to enable communication between the PLC and the touch screen.

6. The combustible gas alarm monitoring system of claim 1 wherein the remote monitoring terminal is a cell phone or a computer.

7. The combustible gas alarm monitoring system of claim 1, wherein the type of the combustible gas host is a sieboldii combustible gas host, a texan combustible gas host, or a Xinhairui combustible gas host.