Intelligent soot blowing control system for boiler

Abstract

The utility model provides a boiler intelligent soot blowing control system, the system comprises a control mechanism, a detection mechanism and a soot blowing mechanism, the control mechanism comprises a base table and a PLC controller, the detection mechanism comprises a dust sensor, the dust sensor is arranged on the side wall of the boiler and is electrically connected with the PLC controller, and the soot blowing mechanism is electrically connected with the PLC controller. The soot blowing mechanism comprises a soot blowing cavity and an ultrasonic soot blower electrically connected with the PLC, the soot blowing cavity is arranged on the side wall of the boiler pipeline, and the ultrasonic soot blower is arranged in the soot blowing cavity. According to the system, dust data of the boiler can be monitored in real time through the dust sensor, and the ultrasonic soot blower is intelligently controlled to blow soot through the PLC, so that manual participation is reduced, the safety risk of operators is reduced, and the soot blowing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler soot blowing, in particular to an intelligent boiler soot blowing control system. Background Art

[0002] Boilers are crucial thermal energy equipment in the pulp and paper industry, and their operational efficiency and safety are directly linked to the company's production profitability. However, over long-term operation, soot accumulation on the heating surfaces of boilers can lead to reduced thermal efficiency and even potential safety hazards. Traditional sootblowing methods, which rely heavily on manual judgment and operation, are inefficient and energy-intensive. Therefore, a system that intelligently controls the sootblowing process is proposed to address these issues. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a boiler intelligent sootblowing control system to solve the above problems in the prior art.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] A boiler intelligent sootblowing control system, the system comprising a control mechanism, a detection mechanism and a sootblowing mechanism, the control mechanism comprising a base platform and a PLC controller, the detection mechanism comprising a dust sensor, the dust sensor being arranged on the side wall of the boiler and electrically connected to the PLC controller, the sootblowing mechanism comprising a sootblowing cavity and an ultrasonic sootblower electrically connected to the PLC controller, the sootblowing cavity being arranged on the side wall of a boiler pipe, and the ultrasonic sootblower being arranged in the sootblowing cavity.

[0006] Furthermore, the sootblowing mechanism includes a solenoid valve electrically connected to the PLC controller, the solenoid valve is arranged on the side wall of the boiler pipe and is used to connect the boiler pipe and the sootblowing cavity.

[0007] Furthermore, it includes a cleaning mechanism, which includes a cleaning brush and an electric rotor and a first electric telescopic rod and a second electric telescopic rod electrically connected to the PLC controller respectively, the fixed end of the first electric telescopic rod is arranged in the sootblowing chamber, the movable end of the first electric telescopic rod is vertically connected to the fixed end of the second electric telescopic rod, the movable end of the second electric telescopic rod is connected to the fixed end of the electric rotor, and the cleaning brush is connected to the rotating shaft of the electric rotor.

[0008] Furthermore, the cleaning mechanism includes a water tank and a water mist nozzle electrically connected to the PLC controller. The water tank is arranged in the soot blowing cavity, and the water mist nozzle is arranged on the movable end of the second electric telescopic rod and is connected to the water tank.

[0009] Furthermore, the detection mechanism includes a liquid level sensor, which is arranged at the bottom of the water tank and electrically connected to the PLC controller.

[0010] Furthermore, the cleaning brush and the movable end of the second electric telescopic rod are detachably connected.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model proposes a boiler intelligent sootblowing control system. The system can monitor the dust data of the boiler in real time through a dust sensor, and intelligently control the ultrasonic sootblower to blow soot through a PLC controller, thereby reducing manual participation, reducing the safety risks of operators, and thus improving the efficiency of sootblowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of a boiler intelligent sootblowing control system provided in Example 1 of the present utility model.

[0015] Figure 2 This is a schematic diagram of the overall circuit principle of a boiler intelligent sootblowing control system provided in Example 1 of the present utility model.

[0016] Figure 3 This is a schematic diagram of the overall structure of a boiler intelligent sootblowing control system provided in Example 2 of the present utility model.

[0017] Figure 4 This is a schematic diagram of the overall circuit principle of a boiler intelligent sootblowing control system provided in Example 2 of the present utility model.

[0018] In the figure, 1. PLC controller; 2. Dust sensor; 3. Solenoid valve; 4. Ultrasonic soot blower; 5. First electric telescopic rod; 6. Second electric telescopic rod; 7. Electric turntable; 8. Water mist nozzle; 9. Liquid level sensor; 10. Cleaning brush; 11. Boiler pipe; 12. Water tank; 13. Soot blowing chamber; 14. Base platform. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The enumerated embodiments are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] Example 1

[0021] Reference Figure 1 and Figure 2 The utility model provides a boiler intelligent sootblowing control system, which includes a control mechanism, a detection mechanism and a sootblowing mechanism. The control mechanism includes a base platform 14 and a PLC controller 1. The detection mechanism includes a dust sensor 2, which is arranged on the side wall of the boiler and electrically connected to the PLC controller 1. The sootblowing mechanism includes a sootblowing cavity 13 and an ultrasonic sootblower 4 electrically connected to the PLC controller 1. The sootblowing cavity 13 is arranged on the side wall of the boiler pipe 11, and the ultrasonic sootblower 4 is arranged in the sootblowing cavity 13.

[0022] For example, when the boiler pipe 11 needs to be sootblown, the dust threshold can be detected in real time by the dust sensor 2 arranged in the boiler pipe 11. When the dust data detected by the dust sensor 2 exceeds the set threshold, the PLC controller 1 sends a signal instruction to the ultrasonic sootblower 4, so that the ultrasonic sootblower 4 arranged in the sootblowing cavity 13 performs ultrasonic sootblowing on the dust in the boiler pipe 11, thereby reducing manual participation, reducing the safety risks of operators, and thus improving the efficiency of sootblowing. The dust threshold is set independently by the staff according to actual conditions.

[0023] The sootblowing mechanism includes a solenoid valve 3 electrically connected to the PLC controller 1 . The solenoid valve 3 is disposed on a side wall of the boiler pipe 11 and is used to connect the boiler pipe 11 with the sootblowing cavity 13 .

[0024] For example, in order to prevent the ultrasonic soot blower 4 and other equipment from being in a high-temperature boiler for a long time and causing damage to the ultrasonic soot blower 4, the solenoid valve 3 can be used to effectively isolate the connection between the inside of the boiler and the soot blowing chamber 13. When ultrasonic soot blowing operation is required, the PLC controller 1 sends a signal instruction to the solenoid valve 3, so that the solenoid valve 3 is opened, and the ultrasonic soot blower 4 can perform the soot blowing operation.

[0025] In the above embodiment, the PLC controller 1 , the dust sensor 2 , the ultrasonic soot blower 4 , and the solenoid valve 3 may all be existing models known to those skilled in the art.

[0026] Example 2

[0027] Based on the above embodiment, the difference between this embodiment and the above embodiment is:

[0028] Reference Figure 3 and Figure 4This embodiment includes a cleaning mechanism, which includes a cleaning brush 10 and an electric motor 7 and a first electric telescopic rod 5 and a second electric telescopic rod 6 electrically connected to the PLC controller 1 respectively. The fixed end of the first electric telescopic rod 5 is set in the sootblowing chamber 13, the movable end of the first electric telescopic rod 5 is vertically connected to the fixed end of the second electric telescopic rod 6, the movable end of the second electric telescopic rod 6 is connected to the fixed end of the electric motor 7, and the cleaning brush 10 is connected to the rotating shaft of the electric motor 7.

[0029] For example, in order to better clean the accumulated dust on the boiler pipe 11, after the ultrasonic soot blower 4 performs ultrasonic waves, the PLC controller 1 can send a signal instruction to the first electric telescopic rod 5, so that the moving end of the first electric telescopic rod 5 drives the second electric telescopic rod 6 to move to the middle position of the boiler pipe 11, and then the PLC controller 1 sends a signal instruction to the electric turntable 7 and the second electric telescopic rod 6, so that the moving end of the second electric telescopic rod 6 drives the electric turntable 7 to reciprocate in the boiler pipe 11, and then the cleaning brush 10 arranged on the rotating shaft of the electric turntable 7 can clean the dust accumulated on the boiler pipe 11 reciprocatingly along with the moving end of the second electric telescopic rod 6.

[0030] The cleaning mechanism includes a water tank 12 and a water mist nozzle 8 electrically connected to the PLC controller 1 . The water tank 12 is arranged in the soot blowing cavity 13 . The water mist nozzle 8 is arranged on the moving end of the second electric telescopic rod 6 and is connected to the water tank 12 .

[0031] For example, in order to improve the quality of cleaning, when the cleaning brush 10 is performing cleaning work, the PLC controller 1 can send a signal instruction to the water mist nozzle 8, so that the water mist nozzle 8 can spray the water in the water tank 12 onto the boiler pipe 11, and then through the cleaning of water and the cleaning brush 10, the cleaning quality of the boiler pipe 11 can be improved.

[0032] The detection mechanism includes a liquid level sensor 9 , which is disposed at the bottom of the water tank 12 and electrically connected to the PLC controller 1 .

[0033] For example, in order to replenish the water tank 12 in time, the water level information in the water tank 12 can be detected in real time through the liquid level sensor 9. When the liquid level sensor 9 cannot detect the water level information, a water level warning can be issued and the staff can make corresponding water replenishment.

[0034] The cleaning brush 10 and the movable end of the second electric telescopic rod 6 are detachably connected.

[0035] For example, for dust accumulated on the cleaning brush 10 , the staff can replace the cleaning brush 10 in a detachable manner.

[0036] In the above embodiment, the first electric telescopic rod 5, the second electric telescopic rod 6, the electric rotary machine 7, the water mist nozzle 8 and the liquid level sensor 9 can all adopt existing models well known to those skilled in the art.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A boiler intelligent sootblowing control system, characterized in that: The system includes a control mechanism, a detection mechanism and a sootblowing mechanism. The control mechanism includes a base and a PLC controller. The detection mechanism includes a dust sensor, which is arranged on the side wall of the boiler and electrically connected to the PLC controller. The sootblowing mechanism includes a sootblowing cavity and an ultrasonic sootblower electrically connected to the PLC controller. The sootblowing cavity is arranged on the side wall of the boiler pipe, and the ultrasonic sootblower is arranged in the sootblowing cavity.

2. A boiler intelligent sootblowing control system according to claim 1, characterized in that: The sootblowing mechanism includes a solenoid valve electrically connected to a PLC controller. The solenoid valve is arranged on a side wall of the boiler pipe and is used to connect the boiler pipe with the sootblowing cavity.

3. The intelligent sootblowing control system for a boiler according to claim 1, characterized in that: It includes a cleaning mechanism, which includes a cleaning brush and an electric rotor and a first electric telescopic rod and a second electric telescopic rod electrically connected to the PLC controller respectively. The fixed end of the first electric telescopic rod is arranged in the sootblowing chamber, the movable end of the first electric telescopic rod is vertically connected to the fixed end of the second electric telescopic rod, the movable end of the second electric telescopic rod is connected to the fixed end of the electric rotor, and the cleaning brush is connected to the rotating shaft of the electric rotor.

4. The intelligent sootblowing control system for a boiler according to claim 3, characterized in that: The cleaning mechanism includes a water tank and a water mist nozzle electrically connected to a PLC controller. The water tank is arranged in the soot blowing cavity. The water mist nozzle is arranged on the movable end of the second electric telescopic rod and is connected to the water tank.

5. The intelligent sootblowing control system for a boiler according to claim 4, characterized in that: The detection mechanism includes a liquid level sensor, which is arranged at the bottom of the water tank and is electrically connected to the PLC controller.

6. The intelligent sootblowing control system for a boiler according to claim 3, characterized in that: The cleaning brush and the movable end of the second electric telescopic rod are detachably connected.

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