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CN-121977225-A - Combustor ignition control system and method

CN121977225ACN 121977225 ACN121977225 ACN 121977225ACN-121977225-A

Abstract

The invention relates to the technical field of burner control, in particular to a burner ignition control system and a method, comprising a control cabinet body; the system comprises a diesel oil supply pipeline, a compressed air supply pipeline, two control and execution assemblies, a diesel oil supply pipeline and a compressed air supply pipeline, wherein the two control and execution assemblies are respectively used for controlling the diesel oil supply pipeline and the compressed air supply pipeline, and each of the diesel oil supply pipeline and the compressed air supply pipeline comprises a stop valve, a filter, a first instrument valve, an electric control valve, a pressure regulating valve, a second instrument valve and a one-way valve which are sequentially connected through pipelines. According to the ignition control system and the ignition control method for the combustor, by arranging the two control and execution assemblies, the accurate regulation and control of the supply of diesel oil and compressed air in the ignition process can be realized, the control precision is improved, and the ignition success rate and the operation safety are further remarkably improved.

Inventors

  • HAO FENGLEI
  • ZHU LEI
  • GU XIN
  • WANG JUN

Assignees

  • 安徽铜陵海螺水泥有限公司

Dates

Publication Date
20260505
Application Date
20260312

Claims (10)

  1. 1. A burner ignition control system, comprising: A control cabinet body; A diesel supply line and a compressed air supply line; The two control and execution assemblies are respectively used for controlling the diesel oil supply pipeline and the compressed air supply pipeline; The diesel oil supply pipeline and the compressed air supply pipeline comprise a stop valve (1), a filter (2), a first instrument valve (3), an electric control valve (4), a pressure regulating valve (5), a second instrument valve (6) and a one-way valve (8) which are sequentially connected through pipelines.
  2. 2. The burner ignition control system according to claim 1, further comprising a purge valve (9), both ends of the purge valve (9) being connected to the check valves (8) in the diesel supply line and the compressed air supply line, respectively, by pipes.
  3. 3. The burner ignition control system according to claim 2, characterized in that the diesel supply line further comprises a flow meter (7), the flow meter (7) being connected between the pressure regulating valve (5) and the non-return valve (8).
  4. 4. The burner ignition control system of claim 1 wherein the diesel supply line is a DN25 line and the compressed air supply line is a DN40 line.
  5. 5. The burner ignition control system of claim 3 wherein the control and execution assembly comprises: an electric actuator M for driving the electric control valve 4; The pressure monitoring point is used for collecting parameters such as diesel pressure, compressed air pressure and the like; and the instrument display area (10) is used for receiving signals transmitted by the pressure monitoring points.
  6. 6. The burner ignition control system according to claim 5, wherein the electric actuator M can automatically adjust the opening degree of the electric control valve (4) according to a preset program or an external signal.
  7. 7. The burner ignition control system of claim 5 wherein the pressure monitoring point comprises a control cabinet mounted therein: An oil supply pressure transmitter (11) connected with a first instrument valve (3) in the diesel oil supply pipeline; an oil outlet pressure transmitter (12) connected with a second instrument valve (6) in the diesel oil supply pipeline; a gas supply pressure transmitter (13) connected with a meter valve I (3) in the compressed air supply pipeline; and the air outlet pressure transmitter (14) is connected with a meter valve II (6) in the compressed air supply pipeline.
  8. 8. The burner ignition control system according to claim 7, wherein the meter display area (10) comprises: The oil supply pressure display area is electrically connected with the oil supply pressure transmitter (11); the oil outlet pressure display area is electrically connected with the oil outlet pressure transmitter (12); the valve opening display area is electrically connected with the electric executing mechanism M; the air supply pressure display area is electrically connected with the air supply pressure transmitter (13); The air outlet pressure display area is electrically connected with the air outlet pressure transmitter (14); and the flow display area is electrically connected with the flowmeter (7).
  9. 9. The ignition control system of a burner according to claim 1, wherein the control cabinet body is of a front-back double door structure, and the filter (2), the first meter valve (3), the electric control valve (4), the pressure regulating valve (5), the second meter valve (6), the flowmeter (7), the one-way valve (8) and the blowing valve (9) are all installed in the control cabinet body.
  10. 10. A burner ignition control method applied to the burner ignition control system according to any one of claims 1 to 9, characterized by comprising the steps of: Step one, initializing a system, opening a front door and a rear door of a cabinet body, checking whether each pipeline is firmly connected, judging whether an instrument display area (10) is normal, opening a diesel oil and compressed air inlet stop valve (1), and enabling the system to enter a standby state; step two, ignition is started, after an ignition program is triggered, the system firstly detects whether the pressure of diesel oil and the pressure of compressed air meet the threshold requirement, if the pressure is normal, a corresponding electric control valve (4) is automatically opened, the pressure is regulated to a preset value through a pressure regulating valve (5), and a flowmeter (7) monitors the flow in real time; step three, operation monitoring, wherein in the ignition process, an instrument display area (10) displays the diesel pressure, the compressed air pressure, the valve opening, the air supply pressure, the air outlet pressure and the device state in real time; step four, a purging valve (9) is opened before ignition or after shutdown, and compressed air is utilized to purge a pipeline to remove residual media; And fifthly, stopping maintenance, automatically closing the electric control valve (4) by the system after ignition, and closing the inlet stop valve (1).

Description

Combustor ignition control system and method Technical Field The invention relates to the technical field of burner control, in particular to a burner ignition control system and method. Background The ignition control system of the burner is a core control unit of industrial combustion equipment, and has the main effects of realizing automation and precision of an ignition process, simultaneously monitoring the combustion state in the whole process, avoiding safety accidents such as deflagration, flameout and the like, and ensuring the stable operation of the equipment. In industrial combustion equipment, an ignition system of a combustor is a core link for guaranteeing safe and stable operation of the equipment. At present, components such as a burner ignition system in the prior art, including diesel oil, compressed air supply, valve control, instrument monitoring and the like are installed in a separated mode, so that on-site construction is complex, pipeline arrangement is disordered, and occupied space is large. The key operation parameters such as diesel oil pressure, compressed air pressure, valve opening, air supply pressure and the like are not displayed in a centralized way, so that operators are difficult to grasp the system state in real time, and the fault investigation efficiency is low. Secondly, the ratio of diesel oil to compressed air in the ignition process depends on manual adjustment, so that unbalance of the supply quantity is easy to occur, and potential safety hazards such as ignition failure, tempering, flameout and the like are caused. In addition, the pipeline and the instrument of the traditional system are designed in a non-standardized mode, components are required to be detached one by one during overhaul, and the shutdown maintenance time is long, so that the production efficiency is affected. Therefore, development of a burner ignition control system with high integration degree, accurate control, visual state and convenient maintenance is urgently needed to solve the defects in the prior art. In view of this, we propose a burner ignition control system and method. Disclosure of Invention The embodiment of the invention aims to provide a combustor ignition control system and a combustor ignition control method, which solve the problems that in the prior art, a combustor ignition system has distributed layout, key operation parameters are not displayed in a centralized way, and the ratio of diesel oil to compressed air in the ignition process depends on manual adjustment and non-standardized design. To achieve the above object, a first aspect of the present invention provides a burner ignition control system, comprising: A control cabinet body; A diesel supply line and a compressed air supply line; The two control and execution assemblies are respectively used for controlling the diesel oil supply pipeline and the compressed air supply pipeline; the diesel oil supply pipeline and the compressed air supply pipeline comprise a stop valve, a filter, a first instrument valve, an electric control valve, a pressure regulating valve, a second instrument valve and a one-way valve which are sequentially connected through pipelines. Further, the diesel oil and compressed air combined type air purifier further comprises a purge valve, and two ends of the purge valve are respectively connected with check valves in the diesel oil supply pipeline and the compressed air supply pipeline through pipelines. Further, the diesel oil supply pipeline further comprises a flowmeter, and the flowmeter is connected between the pressure regulating valve and the one-way valve. Further, the diesel oil supply pipeline is a DN25 pipeline, and the compressed air supply pipeline is a DN40 pipeline. Further, the control and execution assembly includes: The electric actuator M is used for driving the electric control valve; The pressure monitoring point is used for collecting parameters such as diesel pressure, compressed air pressure and the like; And the instrument display area is used for receiving the signals transmitted by the pressure monitoring points. Further, the electric actuator M may automatically adjust the opening of the electric control valve according to a preset program or an external signal. Further, the pressure monitoring point comprises a pressure sensor installed in the control cabinet body: The oil supply pressure transmitter is connected with a first instrument valve in the diesel oil supply pipeline; The oil outlet pressure transmitter is connected with a second instrument valve in the diesel oil supply pipeline; the air supply pressure transmitter is connected with a first instrument valve in the compressed air supply pipeline; and the air outlet pressure transmitter is connected with a second instrument valve in the compressed air supply pipeline. Further, the meter display area includes: The oil supply pressure display area is electrically connected with the oil supply pressure tra