CN215726085U

CN215726085U - Abnormal monitoring system of generated energy

Info

Publication number: CN215726085U
Application number: CN202121531837.0U
Authority: CN
Inventors: 张明岳; 朱新雄; 王乐良; 李波; 王学功
Original assignee: Shandong Laigang Yongfeng Steel and Iron Co Ltd
Current assignee: Shandong Laigang Yongfeng Steel and Iron Co Ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2022-02-01
Anticipated expiration: 2031-07-07

Abstract

The utility model discloses a generating capacity abnormity monitoring system which comprises a boiler body, wherein the boiler body is a gas boiler; a steam output pipe of the boiler body is connected to a steam inlet of the generator; a steam abnormity monitoring module is arranged on the steam output pipe; an electric energy abnormity monitoring module is installed at the power generation end of the generator; a gas pipeline of the boiler body is provided with a gas flow abnormity monitoring module; the steam abnormity monitoring module, the electric energy abnormity monitoring module and the gas flow abnormity monitoring module are all connected to the power generation state monitoring controller; the power generation state controller is connected with an abnormal part indicator lamp and an abnormal grade indicator lamp. The utility model provides a generating capacity abnormity monitoring system, which monitors each energy supply end for generating power, carries out early warning in time when the supply fluctuates, predicts the generating load from time to time, reduces the cost of outsourcing power demand and reduces the impact on a power supply line.

Description

Abnormal monitoring system of generated energy

Technical Field

The utility model relates to a power generation capacity monitoring model, in particular to a power generation capacity abnormity monitoring system, and belongs to the technical field of power generation capacity monitoring.

Background

The difficulty of controlling the maximum demand is at the power generation end; under the normal production condition, which equipment is started, how much electric load is basically constant (a small amount of frequency conversion equipment can cause load fluctuation), and the production is carried out according to the plan without causing abrupt increase of the electric load; the factors influencing power generation are many, the factors of power generation equipment are provided, more importantly, the supply of power generation raw materials is provided, when the supply of the power generation raw materials is insufficient, the power generation load is reduced, and at the moment, if the power load is not changed in time, the outsourcing power load is increased; therefore, the generated energy is monitored, when the found quantity is abnormal (reduced), the early warning prompt is given to power dispatching personnel, the power load is reduced under the condition of production permission, and the increase of the required quantity can be effectively relieved; particularly, in the power generation process, the abnormal position needs to be quickly judged so as to be solved.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a power generation quantity abnormity monitoring system, which monitors each energy supply end for power generation, carries out early warning in time when the supply fluctuates, predicts the power generation load in real time, reduces the cost of outsourcing power demand and reduces the impact on a power supply line.

The utility model discloses a system for monitoring abnormal power generation, which comprehensively balances according to the output flow and pressure of blast furnace and converter gas, the user consumption flow and pressure of blast furnace and converter gas, the steam generation flow and pressure of a boiler, the power generation amount of a generator, all power loads, two total loads and four total loads, outsourcing power actual loads and self-generating power actual load real-time data, monitors the inlet variables of detection equipment in real time through all input variables of a health state, predicts residual error evaluation, outputs an abnormal detection result once per minute, outputs the variables and the outlet variables of the detection equipment through a health state fitting model, realizes real-time detection of power generation load and abnormal detection, and accordingly can realize real-time prediction of required amount, and the system has the following specific structure: the boiler comprises a boiler body, wherein the boiler body is a gas boiler; a steam output pipe of the boiler body is connected to a steam inlet of the generator; a steam abnormity monitoring module is arranged on the steam output pipe; an electric energy abnormity monitoring module is installed at the power generation end of the generator; a gas pipeline of the boiler body is provided with a gas flow abnormity monitoring module; the steam abnormity monitoring module, the electric energy abnormity monitoring module and the gas flow abnormity monitoring module are all connected to the power generation state monitoring controller; the power generation state controller is connected with an abnormal part indicator lamp and an abnormal grade indicator lamp.

Further, the steam abnormity monitoring module comprises a pressure meter and a steam meter; the pressure gauge and the steam gauge are connected to a first monitoring controller; the electric energy abnormity monitoring module comprises an electric energy meter; the electric energy meter is electrically connected to the second monitoring controller; the gas flow abnormity monitoring module comprises a gas flowmeter; the gas flowmeter is connected to a third monitoring controller; and the first monitoring controller and the third monitoring controller are connected to the power generation state monitoring controller.

Further, the first monitoring controller and the third monitoring controller are electrically connected with an abnormal part indicator lamp.

Furthermore, a gas pipeline of the boiler body is connected to a coal production pipeline output port of the blast furnace; an oxygen inlet of the blast furnace is connected with an oxygen pipeline; an oxygen supply abnormity monitoring module is installed on the oxygen pipeline; the steam abnormity monitoring module comprises an oxygen flow meter, and the oxygen flow meter is connected to a fourth monitoring controller; the fourth monitoring controller is connected to the power generation state monitoring controller; and the fourth monitoring controller is electrically connected with an abnormal part indicator lamp.

Further, the boiler body also comprises a mixed combustion boiler; a steam pipeline of the mixed combustion boiler is connected to a steam inlet of the generator; a coal powder abnormity detection module is arranged at a coal supply mechanism of the mixed combustion boiler; the coal dust abnormity detection module is a coal amount detector.

Compared with the prior art, the system for monitoring the abnormal power generation amount has the following advantages:

firstly, when abnormal changes occur in the power generation or other relevant factor variables influencing the power generation, such as the hourly output of blast furnace gas, the hourly output of steam and the like, the model can quickly sense the changes and prompt relevant personnel to pay attention.

And secondly, when the generated energy is abnormal, related personnel can be helped to trace the root and the source, and the reason for generating energy abnormality is analyzed.

And thirdly, when the power generation amount is abnormal, the equipment capable of being temporarily closed can be quickly closed.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Detailed Description

Example 1:

the system for monitoring abnormal power generation as shown in fig. 1 is characterized in that according to the gas output flow and pressure of a blast furnace and a converter, the user usage flow and pressure of the gas of the blast furnace and the converter, the steam generation flow and pressure of a boiler, the power generation amount of a generator, all power loads, two power loads and four power loads, outsourcing power actual loads and self-generating power actual load real-time data are comprehensively balanced, real-time monitoring of inlet variables of detection equipment is performed through input variables of a health state, residual error assessment is predicted, abnormal detection results are output once per minute, variables and outlet variables of the detection equipment are output through a health state fitting model, real-time detection of the power generation load is realized, abnormal detection is performed, real-time prediction of required amount can be realized, and the system has the following specific structure: the boiler comprises a boiler body, wherein the boiler body is a gas boiler; a steam output pipe of the boiler body is connected to a steam inlet of the generator; a steam abnormity monitoring module is arranged on the steam output pipe; an electric energy abnormity monitoring module is installed at the power generation end of the generator; a gas pipeline of the boiler body is provided with a gas flow abnormity monitoring module; the steam abnormity monitoring module, the electric energy abnormity monitoring module and the gas flow abnormity monitoring module are all connected to the power generation state monitoring controller; the power generation state controller is connected with an abnormal part indicator lamp and an abnormal grade indicator lamp.

The steam abnormity monitoring module comprises a pressure meter and a steam meter; the pressure gauge and the steam gauge are connected to a first monitoring controller; the electric energy abnormity monitoring module comprises an electric energy meter; the electric energy meter is electrically connected to the second monitoring controller; the gas flow abnormity monitoring module comprises a gas flowmeter; the gas flowmeter is connected to a third monitoring controller; and the first monitoring controller and the third monitoring controller are connected to the power generation state monitoring controller.

The first monitoring controller and the third monitoring controller collect data of each sensor and flow meter, process the data and judge the threshold value, the normal threshold value range corresponding to the collected data is preset in the first monitoring controller to the third monitoring controller, when the threshold value range is exceeded, the site alarm is directly carried out, meanwhile, the corresponding data is sent to the power generation state monitoring controller, the power generation state monitoring controller obtains the relation between the input energy and the output energy according to experience or site test, thereby establishing a data and output energy fluctuation relation table or calculation formula after the threshold value is exceeded (lower than the threshold value section or higher than the threshold value section), when the threshold value section is lower than the threshold value section, the lowest value of the threshold value section is subtracted from the current collected data to obtain a table lookup or a calculation formula, when the threshold value section is higher than the threshold value section, the highest value of the threshold value section is subtracted from the current collected data to obtain a table lookup or a calculation formula, wherein, the fluctuation data calculation or table lookup can establish two sets of monitoring systems according to the section higher than the threshold value or the section lower than the threshold value; it works as follows: when the first monitoring controller sets a normal steam flow and pressure range, and when the fluctuation of the first monitoring controller exceeds the set range, the current flow and pressure are sent to the first monitoring controller, and the current fluctuation value is subtracted from the standard steam flow or pressure to obtain a fluctuation error; when the error exceeds a preset value, directly carrying out on-site alarm, and simultaneously sending data to a power generation state monitoring controller; the power generation state monitoring controller outputs a fluctuation result (charge fluctuation result) to prompt that rush repair is needed and unnecessary electrical equipment is shut down; the second monitoring controller sets a normal electric energy productivity range, and when the fluctuation of the second monitoring controller exceeds the set range, the second monitoring controller directly gives an alarm to prompt that rush repair is needed and unnecessary electrical equipment is shut down; setting a normal gas flow and pressure range through a third monitoring controller, and subtracting a current acquisition value through a standard gas flow or pressure to obtain a fluctuation error when the fluctuation exceeds the set range; when the error exceeds a preset value, directly carrying out on-site alarm, and simultaneously sending data to a power generation state monitoring controller; the power generation state monitoring controller outputs a fluctuation result (a steam fluctuation result and/or a charge fluctuation result) to prompt that rush repair is needed and unnecessary electrical equipment is shut down.

Furthermore, a gas pipeline of the boiler body is connected to a coal production pipeline output port of the blast furnace; an oxygen inlet of the blast furnace is connected with an oxygen pipeline; an oxygen supply abnormity monitoring module is installed on the oxygen pipeline; the steam abnormity monitoring module comprises an oxygen flow meter, and the oxygen flow meter is connected to a fourth monitoring controller; the fourth monitoring controller is connected to the power generation state monitoring controller; the fourth monitoring controller is electrically connected with an abnormal part indicator lamp; setting a normal oxygen flow and pressure range through a fourth monitoring controller, and subtracting a current acquisition value through a standard oxygen flow or pressure to obtain a fluctuation error when the fluctuation exceeds the set range; when the error exceeds a preset value, directly carrying out on-site alarm, and simultaneously sending data to a power generation state monitoring controller; the power generation state monitoring controller outputs fluctuation results (gas fluctuation results, steam fluctuation results and/or charge fluctuation results) to prompt that rush repair is needed and unnecessary electrical equipment is shut down.

The above-described embodiments are merely preferred embodiments of the present invention, and all equivalent changes or modifications of the structures, features and principles described in the claims of the present invention are included in the scope of the present invention.

Claims

1. A power generation capacity abnormity monitoring system is characterized in that: the boiler comprises a boiler body, wherein the boiler body is a gas boiler; a steam output pipe of the boiler body is connected to a steam inlet of the generator; a steam abnormity monitoring module is arranged on the steam output pipe; an electric energy abnormity monitoring module is installed at the power generation end of the generator; a gas pipeline of the boiler body is provided with a gas flow abnormity monitoring module; the steam abnormity monitoring module, the electric energy abnormity monitoring module and the gas flow abnormity monitoring module are all connected to the power generation state monitoring controller; the power generation state controller is connected with an abnormal part indicator lamp and an abnormal grade indicator lamp.

2. The power generation amount abnormality monitoring system according to claim 1, characterized in that: the steam abnormity monitoring module comprises a pressure gauge and a steam gauge; the pressure gauge and the steam gauge are connected to a first monitoring controller; the electric energy abnormity monitoring module comprises an electric energy meter; the electric energy meter is electrically connected to the second monitoring controller; the gas flow abnormity monitoring module comprises a gas flowmeter; the gas flowmeter is connected to a third monitoring controller; and the first monitoring controller and the third monitoring controller are connected to the power generation state monitoring controller.

3. The power generation amount abnormality monitoring system according to claim 2, characterized in that: and the first monitoring controller and the third monitoring controller are electrically connected with an abnormal part indicator lamp.

4. The power generation amount abnormality monitoring system according to claim 1, characterized in that: the gas pipeline of the boiler body is connected to the output port of the coal production pipeline of the blast furnace; an oxygen inlet of the blast furnace is connected with an oxygen pipeline; an oxygen supply abnormity monitoring module is installed on the oxygen pipeline; the steam abnormity monitoring module comprises an oxygen flow meter, and the oxygen flow meter is connected to a fourth monitoring controller; the fourth monitoring controller is connected to the power generation state monitoring controller; and the fourth monitoring controller is electrically connected with an abnormal part indicator lamp.

5. The power generation amount abnormality monitoring system according to claim 1, characterized in that: the boiler body also comprises a multi-fuel fired boiler; a steam pipeline of the mixed combustion boiler is connected to a steam inlet of the generator; a coal powder abnormity detection module is arranged at a coal supply mechanism of the mixed combustion boiler; the coal dust abnormity detection module is a coal amount detector.