Flue soot removing device

Abstract

The embodiment of the present disclosure provides a flue soot-blowing device, which comprises a spraying pipeline, an air inlet pipeline, a controller and a sensor group; the spraying pipeline is arranged on the inner side wall of the flue; two ends of the air inlet pipeline are respectively connected with a compressed air source and the spraying pipeline; the spraying pipeline is provided with a plurality of interval distributed spraying openings; the sensor group is arranged in the flue to monitor the flue gas parameters and the soot amount parameters in the flue in real time; the controller is electrically connected with the sensor group, is used for controlling the opening and closing of the spraying pipeline according to the monitoring data obtained by the sensor group, and is used for adjusting the spraying parameters of the spraying pipeline in real time. The device can blow off the soot in the flue without stopping the furnace, thereby reducing the production loss and the maintenance cost caused by stopping the furnace. The flue gas flow rate and the soot condition in the flue are monitored in real time through the sensor group, and the spraying parameters of the spraying pipeline are automatically adjusted, so that accurate soot blowing control can be realized, and the soot blowing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present disclosure belongs to the technical field of flue cleaning equipment, and particularly relates to a flue soot blowing device. BACKGROUND

[0002] In the operation process of power generation by fire, industrial boiler and the like, as the main channel for discharging flue gas, the operation efficiency of the flue directly affects the stability and economy of the whole system. However, due to the low local flow rate of the flue, soot is easily formed, which not only affects the normal operation of the flue, but also can cause equipment failure, increase downtime and maintenance cost.

[0003] In view of the above problems, it is necessary to provide a flue soot blowing device which is reasonable in design and effectively solves the above problems. SUMMARY

[0004] The embodiment of the present disclosure aims to at least solve one of the technical problems existing in the prior art, and provide a flue soot blowing device.

[0005] The embodiment of the present disclosure provides a flue soot blowing device, comprising: a spraying pipeline, an air inlet pipeline, a controller and a sensor group.

[0006] The spraying pipeline is arranged on the inner wall of the flue.

[0007] The first end of the air inlet pipeline is connected in communication with a compressed air source, and the second end of the air inlet pipeline is connected in communication with the spraying pipeline.

[0008] The spraying pipeline is provided with a plurality of interval-distributed spraying ports.

[0009] The sensor group is arranged in the flue and is used for monitoring the flue gas parameters and soot amount parameters in the flue in real time.

[0010] The controller is electrically connected with the sensor group, and is used for controlling the opening and closing of the spraying pipeline and adjusting the spraying parameters of the spraying pipeline in real time according to the monitoring data obtained by the sensor group.

[0011] Optionally, an electric control valve is arranged on the air inlet pipeline, and the electric control valve is electrically connected with the controller.

[0012] Optionally, the spraying ports are arranged on the side of the spraying pipeline facing the flue gas flow direction.

[0013] Optionally, the plurality of spraying ports are equally spaced.

[0014] Optionally, the number of the spraying pipelines is multiple.

[0015] The plurality of spraying pipelines are supported on the inner wall of the flue in the axial and radial directions of the flue.

[0016] Optionally, the injection port is provided with a filter screen.

[0017] Optionally, the injection port is in a streamline or conical structure.

[0018] Optionally, the injection pipe and the injection port are made of corrosion-resistant materials.

[0019] Optionally, the sensor group includes a flow rate sensor, a dust concentration sensor, and a pressure sensor.

[0020] Optionally, the injection parameters include injection pressure and injection rate.

[0021] The flue ash removal device of the present embodiment can control the opening and closing of the injection pipe and adjust the injection parameters of the injection pipe in real time according to the monitoring data of the flue gas and the amount of ash in the flue obtained by the sensor group. The flue can be cleaned without stopping the furnace, reducing production losses and maintenance costs caused by downtime. By real-time monitoring of the flue gas flow rate and ash conditions in the flue through the sensor group and automatically adjusting the injection parameters of the injection pipe, precise ash removal control can be achieved, improving ash removal efficiency. The automatic flue ash removal control reduces the difficulty and intensity of manual operation, improves safety and reliability. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a structural schematic diagram of a flue ash removal device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] To enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the embodiments of the present disclosure are further described in detail below with reference to the drawings and specific embodiments.

[0024] As shown in FIG. 1, the present embodiment provides a flue ash removal device 100, which includes an injection pipe 110, an air inlet pipe 120, a controller, and a sensor group. Figure 1

[0025] The injection pipe 110 is arranged on the inner side wall of the flue 200.

[0026] The first end of the air inlet pipe 120 is used to communicate with the compressed air source, and the second end of the air inlet pipe 120 is used to communicate with the injection pipe 110.

[0027] The compressed air source serves as a power source to provide stable high-pressure air flow for the injection pipe 110. The compressed air source should have sufficient capacity and pressure to meet the requirements of long-time and high-intensity ash removal operation.

[0028] ​The injection pipeline 110 is provided with a plurality of injection openings 130 distributed at intervals.

[0029] The sensor group is arranged in the flue 200 to monitor the flue gas parameters and the amount of accumulated ash in the flue in real time.

[0030] The controller is electrically connected with the sensor group, and is configured to control the opening and closing of the injection pipeline 110 according to the monitoring data obtained by the sensor group, and to adjust the injection parameters of the injection pipeline 110 in real time. In this embodiment, the injection parameters can include but are not limited to injection pressure and injection frequency. By controlling the injection parameters of the injection pipeline 110, the speed and diffusion angle of the injection air flow can be controlled, and an effective air flow coverage area can be formed at the injection opening 130, so that the air flow can fully act on the accumulated ash surface to achieve efficient ash removal.

[0031] Specifically, the compressed air enters the injection pipeline 110 through the air inlet pipeline 120, and is injected to the accumulated ash area in the flue 200 through the injection openings 130 arranged on the injection pipeline 110 to maintain the normal operation of the flue and improve the overall efficiency of the system. The sensor group arranged in the flue 200 is used to obtain the flue gas flow rate and the amount of accumulated ash in the flue 200, and transmit the obtained monitoring data to the controller. The controller judges the received monitoring data, and when the flue gas flow rate is lower than the preset flow rate and / or the amount of accumulated ash is greater than the preset amount of accumulated ash, the injection pipeline 110 is automatically controlled to open to inject compressed air for ash removal. During the ash removal process, the controller can also adjust the injection parameters of the injection pipeline 110 to achieve the best ash removal effect.

[0032] The flue ash removal device of the embodiment of the present disclosure can control the opening and closing of the injection pipeline and adjust the injection parameters of the injection pipeline in real time according to the monitoring data of the flue gas and the amount of accumulated ash in the flue obtained by the sensor group. The flue can be removed without stopping the furnace, reducing the production loss and maintenance cost caused by stopping. By monitoring the flue gas flow rate and the amount of accumulated ash in the flue in real time through the sensor group, and automatically adjusting the injection parameters of the injection pipeline, precise ash removal control can be achieved, and the ash removal efficiency can be improved. The automatic flue ash removal control reduces the difficulty and intensity of manual operation, improves the safety and reliability.

[0033] For example, the air inlet pipeline 120 is provided with an electric control valve, and the electric control valve is electrically connected with the controller. Specifically, the controller controls the opening and closing of the air inlet pipeline 120 by automatically controlling the opening and closing of the electric control valve, and then controls the opening and closing of the injection pipeline 110. In addition, the controller can also control the opening degree of the electric control valve to control the injection parameters of the injection pipeline 110, such as injection pressure and injection frequency, etc., to more specifically perform dust removal work.

[0034] For example, as shown inFigure 1 As shown, the injection port 130 is located on the side of the injection pipe 110 facing the flue gas flow direction. That is to say, the injection direction of compressed air is consistent with the flue gas flow direction, which can effectively remove ash from the ash accumulation area of ​​the flue, resulting in a good ash removal effect.

[0035] Specifically, such as Figure 1 As shown in this embodiment, the ash accumulation area A in the flue 200 is located at the bottom of the flue 200. Therefore, the spray direction of the spray nozzle 130 is downward along the flue gas flow direction, which can better remove the ash accumulation in the ash accumulation area A.

[0036] For example, multiple nozzles 130 are evenly distributed in the spray pipe 110. The equally distributed multiple nozzles 130 can uniformly form an airflow coverage area, allowing the airflow to fully act on the dust accumulation surface and achieve efficient dust removal.

[0037] For example, such as Figure 1 As shown, there are multiple injection pipes 110. This embodiment does not specify the exact number of injection pipes 110, and the number can be selected according to actual needs.

[0038] In this embodiment, multiple injection pipes 110 are distributed axially and radially along the inner wall of the flue 200 and supported thereon. Specifically, the horizontally distributed injection pipes 110 and the vertically distributed injection pipes 110 are arranged in a cross shape on the inner wall of the flue 200, which not only supports the flue but also removes dust from it.

[0039] It should be noted that the design of the injection pipe 110 can be customized according to the flue structure, and can be applied to flues of different shapes and sizes to ensure that the injection airflow can cover the ash accumulation area.

[0040] like Figure 1 As shown, in this embodiment, the injection nozzles 130 are only provided on the horizontally distributed injection pipes 110, which can remove the ash accumulation in the ash accumulation area at the bottom of the pipe. It should be noted that in this embodiment, multiple injection nozzles 130 can also be provided on the vertically distributed injection pipes 110 to remove the ash accumulation on the sidewalls of the flue. The distribution position of the injection nozzles 130 is not specifically limited in this embodiment and can be selected according to actual needs.

[0041] For example, the injection port 130 is equipped with a filter screen. Considering that ash accumulation in the flue may cause blockage of the injection port 130, a filter screen is installed at the injection port 130 to prevent the injection port 130 from being blocked, ensuring the normal operation of the ash removal work and ensuring the ash removal efficiency.

[0042] Exemplarily, the injection port 130 is in a streamlined or tapered structure to optimize the flow characteristics and diffusion effect of the injection gas flow. It should be noted that the specific shape of the injection port 130 is not specifically limited in the embodiment, and can be selected according to actual needs.

[0043] Exemplarily, the injection pipe 110 and the injection port 130 are made of corrosion-resistant materials. Since the environment in the flue is harsh, the injection pipe 110 and the injection port 130 in the flue ash removal device are made of corrosion-resistant materials, which can ensure the long-term stable operation of the flue ash removal device. The specific materials of the injection pipe 110 and the injection port 130 are not specifically limited in the embodiment, and can be selected according to actual needs.

[0044] Exemplarily, the sensor group includes a flow rate sensor, a dust concentration sensor, and a pressure sensor. The flow rate sensor can be used to measure the flue gas flow rate in the flue and transmit the flue gas flow rate to the controller. When the ash in the flue increases, the flue gas flow rate in the flue decreases. The dust concentration sensor can be used to measure the real-time ash amount in the flue and transmit the real-time ash amount data to the controller. The pressure sensor can be used to measure the ash thickness. If the actual pressure is greater than the preset pressure, it means that the ash thickness is greater than the preset thickness, and the ash removal work needs to be performed.

[0045] It should be noted that the sensor group can also use other types of sensors in addition to the above specific sensors, as long as it can monitor the flue gas parameters and ash amount parameters in the flue, and can be selected according to actual needs.

[0046] It should be noted that the controller can be set at a remote end to realize remote automatic control of the ash removal operation of the flue. The controller can use a programmable logic controller (PLC), a microcontroller (MCU), a microprocessor (MPU), or other application-specific integrated circuits (ASICs), etc., which can be selected according to actual needs, and the embodiment is not specifically limited.

[0047] It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principles of the disclosed embodiments, and the disclosed embodiments are not limited thereto. Those skilled in the art can make various modifications and improvements without departing from the spirit and essence of the disclosed embodiments, and these modifications and improvements are also considered within the protection scope of the disclosed embodiments.

Claims

1. A flue dust removal device, characterized in that, include: Injection pipes, intake pipes, controllers, and sensor arrays; The injection pipe is used to be installed on the inner wall of the flue; wherein, there are multiple injection pipes, and the multiple injection pipes are distributed and supported on the inner wall of the flue in a cross pattern along the axial and radial directions of the flue. The first end of the intake pipe is connected to a compressed air source, and the second end of the intake pipe is connected to the injection pipe. The injection pipe is provided with multiple injection nozzles spaced apart; The sensor array is installed in the flue to monitor flue gas parameters and ash accumulation parameters in real time. The sensor array includes a flow rate sensor, a dust concentration sensor, and a pressure sensor. The flow rate sensor measures the flue gas velocity and transmits it to the controller. When ash accumulation in the flue increases, the flue gas velocity decreases. The dust concentration sensor measures the real-time ash accumulation and transmits the data to the controller. The pressure sensor measures the ash thickness; if the actual pressure exceeds a preset pressure, it indicates that the ash thickness is greater than the preset thickness, requiring ash removal. The controller is electrically connected to the sensor group and is used to control the opening and closing of the spray pipe according to the monitoring data obtained by the sensor group, and to adjust the spray parameters of the spray pipe in real time. The spray parameters include spray pressure and spray rate. The controller automatically controls the spray parameters of the spray pipe to control the speed and diffusion angle of the spray airflow, so that an effective airflow coverage area can be formed at the spray nozzle, so that the airflow can fully act on the dust accumulation surface and achieve efficient dust removal.

2. The flue dust removal device according to claim 1, characterized in that, An electric control valve is installed on the air intake pipe, and the electric control valve is electrically connected to the controller.

3. The flue dust removal device according to claim 1, characterized in that, The injection port is located on the side of the injection pipe facing the direction of flue gas flow.

4. The flue dust removal device according to any one of claims 1 to 3, characterized in that, Multiple injection nozzles are evenly spaced.

5. The flue dust removal device according to any one of claims 1 to 3, characterized in that, The injection port is equipped with a filter screen.

6. The flue dust removal device according to any one of claims 1 to 3, characterized in that, The injection nozzle has a streamlined or conical structure.

7. The flue dust removal device according to any one of claims 1 to 3, characterized in that, Both the injection pipe and the injection nozzle are made of corrosion-resistant materials.

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