{"id":2171,"date":"2021-06-24T11:01:34","date_gmt":"2021-06-24T03:01:34","guid":{"rendered":"https:\/\/www.hjkir.com\/?p=2171"},"modified":"2022-01-18T17:40:04","modified_gmt":"2022-01-18T09:40:04","slug":"%e5%82%a8%e7%85%a4%e4%bb%93%e9%98%b2%e7%88%86%e6%99%ba%e8%83%bd%e8%bf%9c%e7%a8%8b%e7%ba%a2%e5%a4%96%e7%9b%91%e6%b5%8b%e7%b3%bb%e7%bb%9f","status":"publish","type":"post","link":"https:\/\/www.hjkir.com\/industry\/en\/2171.html","title":{"rendered":"Explosion proof intelligent remote infrared monitoring system for coal bunker"},"content":{"rendered":"

Necessity and background of the project<\/b><\/strong><\/h2>\n

In coal yard management, self heating and spontaneous combustion are common. Self heating and spontaneous combustion of coal piles not only waste energy and increase the cost of power generation, but also seriously pollute the environment with harmful gases such as carbon monoxide and sulfur dioxide produced by spontaneous combustion. With the continuous promotion and popularization of the mixed burning system in power plants, more and more coal types, places of origin and sources are used in power plants, and the fuel management work is becoming more and more complex, facing many challenges. Among them, the phenomenon of coal pile heating and spontaneous combustion is becoming more and more serious, and the traditional manual coal temperature inspection and burning old and storing new system is becoming more and more unsuitable for the current situation of coal yards, which can not effectively curb the phenomenon of coal pile heating and spontaneous combustion.<\/p>\n

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Causes of spontaneous combustion of coal piles<\/b><\/strong><\/h2>\n

Spontaneous combustion of coal piles often requires three main conditions: first, the coal has the tendency of spontaneous combustion, second, the oxygen supply condition is good, and third, the heat dissipation condition is poor. The spontaneous combustion ability of various coals is different, and some are easy to spontaneous combustion, such as lignite, long flame coal, etc; Some are not easy to spontaneous combustion, such as lean coal, anthracite, etc. in addition, the higher the sulfur content and moisture content of coal, the faster the oxidation reaction speed and the more heat release, the easier the coal is to spontaneous combustion. The heating of coal pile is an oxidation reaction, so the spontaneous combustion of coal pile requires a certain porosity and good ventilation conditions. The oxidation reaction of the coal pile releases heat. If the heat dissipation conditions are poor, the heat accumulation will increase the temperature of the coal pile. The higher the coal temperature is, the more intense the oxidation reaction is. The two aspects interact with each other, accelerating the spontaneous combustion process of the coal pile.<\/p>\n

Therefore, our company has developed a set of special infrared temperature measurement system for coal yard<\/p>\n

1. System application purpose<\/b><\/strong><\/h2>\n

The coal storage bunker is equipped with an infrared thermal imager, which is used to monitor the surface temperature of coal storage in the coal storage bunker in real time, discover the spontaneous combustion of coal storage in time, locate the position of spontaneous combustion of coal storage, so as to take timely treatment measures to ensure the safety of coal storage bunker and reduce the loss of spontaneous combustion of coal storage.<\/p>\n

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The system achieves its goals<\/b><\/strong><\/p>\n

The construction of the system achieves the following objectives:<\/p>\n

    \n
  • Automatic patrol inspection: the system has a preset travel, and uses the intelligent mode of computer system to operate, so it can automatically patrol and test without supervision.<\/li>\n
  • Automatic early warning: if the surface temperature of the target coal pile is abnormal, it will automatically alarm, store the heat map of the working state of the equipment, and prompt the specific location information of the personnel, so as to eliminate the fault immediately and give the work report.<\/li>\n
  • Remote control: realize remote temperature analysis and remote real-time image monitoring of the coal pile surface in the coal storage bunker.<\/li>\n
  • In case of alarm, the system will give audible and visual warnings to operators, and provide alarm hard contacts to provide telecontrol alarm information for fire protection and early warning.<\/li>\n<\/ul>\n

    \"\u7164\u573a\u7ea2\u5916\u7cfb\u7edf,\u76d1\u63a7\u8bbe\u5907\"<\/p>\n

    2. System<\/b><\/strong>composition<\/b><\/strong><\/h2>\n

    The system is mainly composed of \"on-site monitoring equipment\", \"communication network\", \"infrared monitoring platform\" and \"infrared online monitoring system client\".<\/p>\n

    \"\u7ea2\u5916\u76d1\u6d4b\u7cfb\u7edf\u7ec4\u6210,\u7ea2\u5916\u5728\u7ebf\u76d1\u6d4b\"<\/p>\n

    3System function design and characteristics<\/b><\/strong><\/h2>\n

    3.1Function design of monitoring center<\/b><\/strong><\/h3>\n

    The monitoring center is mainly composed of software, which is an organization in system function and management. Since the video signal and control signal have all been connected to the Ethernet, any computer in the Ethernet can be monitored by permission control.<\/p>\n

    The function concept of the monitoring center includes the regional monitoring center and the main control center. The main control center manages and monitors each regional monitoring center in the way of authority management. The function requirements of the main control center and the regional monitoring center are basically the same.<\/p>\n

    3.1.1Real time image monitoring<\/b><\/strong><\/h3>\n