A high-efficiency energy-saving plasma system
By introducing a high-efficiency and energy-saving plasma cooling air and water system into the plasma ignition system, the problems of boiler detection misjudgment and high energy consumption have been solved, and intelligent control and energy-saving effects have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DATANG HUANGDAO POWER GENERATION
- Filing Date
- 2025-03-21
- Publication Date
- 2026-05-29
AI Technical Summary
The conventional coal fire detection results of the boiler are frequently misjudged, and the plasma ignition system has a low level of intelligence, incomplete adjustment methods, and uneconomical energy consumption.
It adopts a high-efficiency and energy-saving plasma system, including a plasma cooling air system and a plasma cooling water system. By adding regulating gates and pressure transmitters, it achieves self-balancing of carrier air pressure and intelligent control of cooling water.
It improves the reliability of flame detection, reduces energy consumption, and enhances the intelligence level of the plasma ignition system.
Smart Images

Figure CN224302136U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a plasma cooling water and cooling air system. Background Technology
[0002] Currently, domestic power plant boilers face challenges such as unstable coal quality, frequent low-load stable combustion, and large load fluctuations, which affect the results of routine coal flame detection and often lead to misjudgments and malfunctions, resulting in abnormal, unsafe, and unreliable unit operation. Plasma ignition systems generally suffer from low levels of intelligence, incomplete adjustment methods, and uneconomical system energy consumption. Utility Model Content
[0003] The purpose of this utility model is to solve the problems that often occur when conventional coal flame detection results in boilers are misjudged, leading to abnormal unit operation, and that plasma ignition systems generally suffer from low intelligence, incomplete adjustment methods, and uneconomical system energy consumption.
[0004] To address the aforementioned shortcomings, this utility model adopts the following technical solution:
[0005] A high-efficiency and energy-saving plasma system comprises a plasma cooling air system and a plasma cooling water system. The plasma cooling air system includes a plasma generator and a carrier air duct. The plasma generator is connected to the carrier air duct, and the carrier air duct is connected in parallel to local plasma purging duct A and local plasma purging duct B. Local plasma purging duct A and local plasma purging duct B are connected to the carrier air system.
[0006] The plasma cooling water system is connected to pipes A and B respectively. A pressure gauge and a pressure transmitter are sequentially installed on pipe A. Pipe E is located after the pressure transmitter on pipe A. The input end of pipe E is connected to a closed cooling water supply main pipe. A shut-off valve C and an electric shut-off valve are installed on pipe E. Pipe A is connected in parallel with pipes C and D. The output ends of pipes C and D are connected to the closed cooling water supply main pipe. A set of shut-off valve A, a water pump, and a shut-off valve B are sequentially installed on pipes C and D respectively. The output end of pipe B is connected to the closed cooling water return main pipe. A shut-off valve D is installed on pipe B.
[0007] In the aforementioned high-efficiency energy-saving plasma system, a pressure switch is installed in the carrier air duct, and a pressure gauge is installed at the pressure switch. A ball valve A is fixedly installed on the local plasma purge air duct A, and the ball valve is connected to a pressure transmitter via a pipeline. An electrically adjustable damper is installed between the ball valve and the pressure transmitter. A ball valve B is fixedly installed on the local plasma purge air duct B, and an electrically operated shut-off damper is installed on the pipeline at the rear end of ball valve B. Beneficial effects
[0008] 1. This utility model achieves the goals of energy saving and consumption reduction, improving flame detection reliability, and enhancing the intelligence level of the plasma ignition system by modifying the plasma ignition carrier air, purge air, and cooling water.
[0009] 2. This utility model ensures the continuous stability of the carrier air pressure during plasma ignition by adding an adjustment valve and a pressure transmitter to the carrier air duct of the plasma cooling air system. Attached Figure Description
[0010] Appendix Figure 1 This is a diagram of the plasma cooling air system of this utility model;
[0011] Appendix Figure 2 This is a diagram of the plasma cooling water system of this utility model.
[0012] In the diagram: 1. Ion generator; 2. Pressure gauge; 3. Pressure switch; 4. Ball valve A; 5. Pressure transmitter; 6. Electric regulating valve; 7. Ball valve B; 8. Electric shut-off valve; 9. Shut-off valve D; 10. Water pump; 11. Shut-off valve A; 12. Shut-off valve B; 13. Shut-off valve C. Detailed Implementation
[0013] Reference Figure 1-2 A high-efficiency and energy-saving plasma system is disclosed, comprising a plasma cooling air system and a plasma cooling water system. The plasma cooling air system includes a plasma generator 1 and a carrier air duct. The plasma generator is connected to the carrier air duct, and the carrier air duct is connected in parallel to local plasma purging duct A and local plasma purging duct B. Local plasma purging duct A and local plasma purging duct B are connected to the carrier air system.
[0014] The plasma cooling water system is connected to pipes A and B respectively. A pressure gauge and a pressure transmitter are sequentially installed on pipe A. Pipe E is located after the pressure transmitter on pipe A. The input end of pipe E is connected to a closed cooling water supply main pipe. A shut-off valve C13 and an electric shut-off valve are installed on pipe E. Pipe A is connected in parallel to pipes C and D. The output ends of pipes C and D are connected to the closed cooling water supply main pipe. A set of series shut-off valves A11, water pump 10, and shut-off valve B12 are sequentially installed on pipes C and D respectively. The output end of pipe B is connected to the closed cooling water return main pipe. A shut-off valve D9 is installed on pipe B.
[0015] After the plasma generator is shut down, the cooling water pump is also shut down, and a bypass is used to cool the plasma using the natural pressure of closed-loop water.
[0016] In the aforementioned high-efficiency energy-saving plasma system, a pressure switch 3 is installed in the carrier air duct, and a pressure gauge 2 is installed at the pressure switch. A ball valve A4 is fixedly installed on the local plasma purge air duct A, and the ball valve is connected to a pressure transmitter 5 through a pipeline. An electric regulating valve 6 is installed between the ball valve and the pressure transmitter. A ball valve B7 is fixedly installed on the local plasma purge air duct B, and an electric shut-off valve 8 is installed on the pipeline at the rear end of the ball valve B.
[0017] The aforementioned regulating gate and pressure transmitter achieve self-balancing of carrier air pressure through the control system, and can realize intelligent on / off switching of carrier air. When the plasma exits operation, the compressed air can be automatically stopped by fully closing the regulating gate.
[0018] Working principle:
[0019] Working principle of the ion cooling air system: When the plasma of Furnace No. 5 stops working, the regulating valve and pressure transmitter achieve self-balancing of carrier air pressure through the control system, and realize intelligent on / off of carrier air. When the plasma stops operating, the compressed air can be automatically stopped by fully closing the regulating valve, and the compressed air is introduced into the pipeline for continuous purging.
[0020] Working principle of the plasma cooling water system: When the plasma is shut down, the water pumps on pipes C and D stop operating. The plasma is then cooled by natural pressure through a closed-loop cooling water supply main pipe connected to the input end of pipe E. The electrically operated shut-off valve on pipe E is intelligently controlled via a control system.
Claims
1. A high-efficiency and energy-saving plasma system, characterized in that: Its components include a plasma cooling air system and a plasma cooling water system. The plasma cooling air system includes a plasma generator and a carrier air duct. The plasma generator is connected to the carrier air duct. The carrier air duct is connected in parallel to local plasma purging duct A and local plasma purging duct B. Local plasma purging duct A and local plasma purging duct B are connected to the carrier air system. The plasma cooling water system is connected to pipes A and B respectively. A pressure gauge and a pressure transmitter are sequentially installed on pipe A. Pipe E is located after the pressure transmitter on pipe A. The input end of pipe E is connected to a closed cooling water supply main pipe. A shut-off valve C and an electric shut-off valve are installed on pipe E. Pipe A is connected in parallel with pipes C and D. The output ends of pipes C and D are connected to the closed cooling water supply main pipe. A set of shut-off valve A, a water pump, and a shut-off valve B are sequentially installed on pipes C and D respectively. The output end of pipe B is connected to the closed cooling water return main pipe. A shut-off valve D is installed on pipe B.
2. The high-efficiency energy-saving plasma system according to claim 1, characterized in that: The carrier air duct is equipped with a pressure switch, and a pressure gauge is installed at the pressure switch. A ball valve A is fixedly installed on the local plasma purge air duct A. The ball valve is connected to a pressure transmitter through a pipeline. An electric regulating valve is installed between the ball valve and the pressure transmitter. A ball valve B is fixedly installed on the local plasma purge air duct B. An electric shut-off valve is installed on the pipeline at the rear end of the ball valve B.