阅读说明：本技术 一种基于WirelessHART的煅烧炉炉温炉压监测系统 (Calcining furnace temperature and furnace pressure monitoring system based on wirelessHART ) 是由 郭笑然 黎一兵 于 2019-01-15 设计创作，主要内容包括：本发明涉及一种基于WirelessHART的煅烧炉炉温炉压监测系统,现场测量煅烧炉炉温的无线温度变送器,现场测量煅烧炉炉压的无线压力变送器,无线温度变送器和无线压力变送器的现场温度和现场压力信号通过无线WirelessHART网络传至WirelessHART网关,WirelessHART网关设在现场,WirelessHART网关将现场温度和现场压力信号进行转换,通过以太网将采集数据送到网络交换机后送到PLC控制系统,在控制室内安装一台上位机,上位机通过以太网连接至网络交换机与PLC控制系统进行通讯。本发明现场无需敷设电缆、桥架、保护管及接线盒等材料,以无线的形式与PLC控制系统进行通讯。(the invention relates to a calciner furnace pressure monitoring system based on wirelessHART, which comprises a wireless temperature transmitter for measuring the calciner furnace temperature on site, a wireless pressure transmitter for measuring the calciner furnace pressure on site, wherein field temperature and field pressure signals of the wireless temperature transmitter and the wireless pressure transmitter are transmitted to a wirelessHART gateway through a wireless wirelessHART network, the wirelessHART gateway is arranged on site and converts the field temperature and the field pressure signals, the acquired data are transmitted to a network switch through Ethernet and then transmitted to a P L C control system, an upper computer is arranged in a control room and is connected to the network switch through the Ethernet to communicate with the P L C control system.)

1. A calciner furnace temperature and furnace pressure monitoring system based on WirelessHART is characterized in that a wireless temperature transmitter for measuring the calciner furnace temperature on site, a wireless pressure transmitter for measuring the calciner furnace pressure on site, field temperature and field pressure signals of the wireless temperature transmitter and the wireless pressure transmitter are transmitted to a WirelessHART gateway through a wireless WirelessHART network, the WirelessHART gateway is arranged on site, the WirelessHART gateway converts the field temperature and the field pressure signals, collected data are transmitted to a network switch through Ethernet and then transmitted to a P L C control system, an upper computer is installed in a control room, and the upper computer is connected to the network switch through the Ethernet and is communicated with the P L C control system.

2. the calciner furnace temperature and furnace pressure monitoring system based on WirelessHART as claimed in claim 1, characterized in that the upper computer is connected to the network switch through ethernet to communicate with the P L C control system, for real-time data acquisition, trend, alarm and flow picture display.

3. The calciner furnace temperature and furnace pressure monitoring system based on WirelessHART as claimed in claim 1, characterized in that the upper computer can carry out online verification, configuration and diagnosis for the wireless temperature transmitter and the wireless pressure transmitter through the WirelessHART gateway 4.

4. The calciner furnace temperature and pressure monitoring system based on WirelessHART as claimed in claim 1, characterized in that the wireless temperature transmitter and the wireless pressure transmitter are arranged in the coverage area of the WirelessHART network.

5. The calciner furnace temperature and furnace pressure monitoring system based on WirelessHART as claimed in claim 1, characterized in that the wireless modules of the wireless temperature transmitter and the wireless pressure transmitter are made of high temperature resistant electronic components.

6. The WirelessHART-based calciner furnace temperature and pressure monitoring system of claim 1, wherein there are multiple redundant paths between each wireless temperature transmitter and wireless pressure transmitter and the WirelessHART gateway.

Technical Field

The invention relates to a furnace temperature and furnace pressure monitoring system, in particular to a furnace temperature and furnace pressure monitoring system of a calciner based on an IEEE 802.11b wireless technology (2.4 GHz) wirelessHART (wireless fidelity hart) of international standard, which is mainly applied to the field of calcined coke production in the carbon industry.

Background

In the petroleum coke calcination process flow of the carbon industry, the pot furnace calcination mode is increasingly used due to the characteristics of low carbon burning loss, good product quality, low operation and maintenance cost and stable waste heat discharge. When the pot-type calcining furnace is used for calcining, raw materials are added into the pot from a charging device at the top of the pot and are gradually heated by flame paths positioned at two sides of a charging bucket in the process of moving from top to bottom. When the temperature of the raw materials reaches 350-600 ℃, a large amount of volatile components in the raw materials are released, and the raw materials are further heated through the combustion of the volatile components. And when the temperature of the raw materials reaches about 1200-1300 ℃, the raw materials are discharged out of the furnace through a crushed material discharge device after a series of physical and chemical reactions. However, due to the influence of factors such as variation of raw material volatile components and moisture, uneven stability of charging and discharging amount, difficulty in quantification of a plurality of detection holes, adjustment holes and channel sealing and the like, the temperature and pressure monitoring of each flame path of the calcining furnace is required to be accurate, otherwise, the furnace fluctuates, and qualified calcined coke products cannot be obtained. It can thus be seen that the control of temperature and underpressure plays a critical role in the calcination process of the calciner.

In the monitoring process of the furnace temperature and the furnace pressure of the existing tank furnace, the traditional 4-20 mA hard wire connection mode is adopted, and the number of the monitored points is large, so that the use amount of on-site cables, terminals, junction boxes and bridges is large, the construction and installation time is long, and the cost is high. Meanwhile, due to the fact that the furnace temperature is high and the field environment is severe, cable aging is easy to cause for a long time, and the accuracy of the monitoring result is directly influenced. Therefore, in order to solve the above problems, it is necessary to design a method for monitoring the temperature and pressure of a tank furnace based on an industrial wireless communication technology, so as to ensure the accuracy and reliability of system monitoring, reduce the use amount of materials such as cables, shorten the installation and debugging time of instrument equipment, and save the cost for enterprise construction, production and the like.

Disclosure of Invention

The invention provides a calciner furnace temperature and furnace pressure monitoring system based on WirelessHART, aiming at reducing the material consumption of cables and the like in the calciner furnace temperature and furnace pressure monitoring system and improving the accuracy and reliability of the monitoring system.

the technical scheme includes that the calciner furnace temperature and furnace pressure monitoring system based on the wirelessHART comprises a wireless temperature transmitter for measuring the calciner furnace temperature on site, a wireless pressure transmitter for measuring the calciner furnace pressure on site, field temperature and field pressure signals of the wireless temperature transmitter and the wireless pressure transmitter are transmitted to a wirelessHART gateway through a wireless wirelessHART network, the wirelessHART gateway is arranged on site, the wirelessHART gateway converts the field temperature and the field pressure signals, transmits acquired data to a network switch through the Ethernet and then transmits the acquired data to a P L C control system, and an upper computer is arranged in a control room and is connected to the network switch through the Ethernet to communicate with the P L C control system.

the upper computer is connected to the network switch through the Ethernet and is communicated with the PLC control system, and is used for real-time data acquisition, trend, alarm and flow image display.

The upper computer can carry out online verification, configuration and diagnosis on the wireless temperature transmitter and the wireless pressure transmitter through the wirelessHART gateway 4.

The wireless temperature transmitter and the wireless pressure transmitter are arranged in the coverage range of the wirelessHART network.

The wireless temperature transmitter and the wireless pressure transmitter are made of high-temperature resistant electronic components.

There are multiple redundant paths between each of the wireless temperature transmitter and the wireless pressure transmitter and the WirelessHART gateway.

the wireless transmitter and the gateway have the advantages of strong anti-interference capability, good stability, strong reliability and the like, can effectively ensure the safe operation of the production process, and the implementation cost of the wireless transmitter and the gateway is economic and reasonable, can effectively reduce the construction time and the cost, and simultaneously reduce the number of the clamping pieces of the P L C system.

Drawings

FIG. 1 is a schematic diagram of the connection of the present invention.

in the figure, the system comprises a host computer 1, a PLC control system 2, a network switch 3, a wirelessHART gateway 4, a wirelessHART network 5, an Ethernet 6, a wireless temperature transmitter 7 and a wireless pressure transmitter 8.

Detailed description of the invention

The present invention is further described with reference to the accompanying drawings, but the embodiments do not limit the technical solutions of the present invention.

As shown in figure 1, the calciner furnace temperature and furnace pressure monitoring system based on the wirelessHART has the structure that a wireless temperature transmitter 7 for measuring the calciner furnace temperature on site, a wireless pressure transmitter 8 for measuring the calciner furnace pressure on site, field temperature and field pressure signals of the wireless temperature transmitter 7 and the wireless pressure transmitter 8 are transmitted to a wirelessHART gateway 4 through a wireless wirelessHART network 5, the wirelessHART gateway 4 is arranged on site, the wirelessHART gateway 4 converts the field temperature and the field pressure signals, collected data are transmitted to a network switch 3 through an Ethernet 6 and then transmitted to a P L C control system 2, an upper computer 1 is installed in a control room, and the upper computer 1 is connected to the network switch 3 through the Ethernet 6 to be communicated with the P L C control system 2 for real-time data collection, trend, alarm and process picture display.

The upper computer 1 can carry out online verification, configuration and diagnosis on the wireless temperature transmitter 7 and the wireless pressure transmitter 8 through the wirelessHART gateway 4.

The wireless temperature transmitter 7 and the wireless pressure transmitter 8 are arranged in the coverage range of the WirelessHART network 5.

And the wireless modules of the wireless temperature transmitter 7 and the wireless pressure transmitter 8 are made of high-temperature-resistant electronic components.

There are multiple redundant paths between each of the wireless temperature transmitter 7 and the wireless pressure transmitter 8 and the WirelessHART gateway 4.

The invention does not need to lay cables and install materials such as a bridge frame, a junction box and the like on site, and completely adopts a wireless mode to transmit signals, thereby greatly saving the cost. Meanwhile, the method adopts the wireless wirelessHART network technology with mature application, and ensures the accuracy and reliability of the whole monitoring system.