A stepping air-energy shock wave soot blowing mechanism

Abstract

This utility model relates to the technical field of pneumatic shockwave soot blowing mechanisms, specifically a stepping pneumatic shockwave soot blowing mechanism, including a shock tank, a motor, a junction box, a rake rod main pipe, and a support frame. The shock tank serves as the power air source, and an electrical control box is electrically connected to the surface of the shock tank and the motor. The motor drives the advance and retraction of the rake soot blower. This utility model solves the problem of insufficient air supply by adopting the above structure. The use of a large-capacity shock tank ensures a sufficient air supply, effectively solving the problem of insufficient air supply in traditional soot blowers. It uses pneumatic shockwaves instead of traditional steam, and through reasonable nozzle design and blowing process, significantly improves the soot blowing effect, effectively removing accumulated ash inside the equipment. Equipped with a junction box, it achieves automated operation, improving the operating efficiency and reliability of the equipment. The nozzle arrangement can be adjusted according to the arrangement of the heated surface tubes, making it highly adaptable and widely applicable.

Description

Technical Field

[0001] This utility model relates to the technical field of pneumatic shock wave soot blowing mechanisms, and in particular to a stepping pneumatic shock wave soot blowing mechanism. Background Technology

[0002] A gas-powered shockwave soot blowing mechanism is a device that uses gas energy to generate shock waves to remove dust from the surface of equipment. Its working principle is usually to rapidly release compressed gas in a specific container to form a high-intensity shock wave pulse. This shock wave propagates at supersonic speed and acts on the heated surface, causing the dust to fall off due to the huge impact force and vibration.

[0003] Existing technologies often have the following drawbacks: traditional gas-powered shock wave soot blowers have nozzles installed on the furnace wall, resulting in a small blowing range and severe shielding of the shock wave by the heated surface tube bundles, leading to insufficient penetration.

[0004] To address this problem, we propose a novel soot blower structure. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where traditional pneumatic shockwave blowing mechanisms cannot meet usage requirements, and to propose a stepping pneumatic shockwave blowing mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stepping air-powered shock wave blowing mechanism, comprising a shock wave tank, a motor, a junction box, a rake rod main pipe and a support frame, wherein the shock wave tank serves as a power air source, and an electrical control box is electrically connected to the surface of the shock wave tank and the motor.

[0007] The effects achieved by the above components are as follows: by setting up the above structure, the problem of insufficient air supply is solved. The use of a large-capacity shock tank ensures a sufficient air supply, effectively solving the problem of insufficient air supply in traditional soot blowers. The electrical control box is a junction box, mainly used for wiring the motor and limit switches.

[0008] Preferably, the motor is used to drive the forward and backward movements of the rake-type soot blower.

[0009] The effect achieved by the above components is as follows: when the motor starts, the rake-type soot blower moves forward, and the advancing length can be determined according to the experimental running time.

[0010] Preferably, the junction box is used to control the operation of the sootblower, including operations such as advancing and retracting.

[0011] The effect achieved by the above components is as follows: the rake-type soot blower moves forward one step after each spray, and after reaching the forward limit switch, the soot blower moves backward one step after each spray, and stops running after reaching the backward limit switch, thus completing one operating cycle.

[0012] Preferably, the rake rod main tube serves as the main structure of the soot blower, and the rake rod main tube is fixedly connected to the shock tank.

[0013] The effect achieved by the above components is that the rake handle facilitates the transmission of airflow.

[0014] Preferably, the other end of the rake rod main pipe is fixedly connected to a rake rod spray pipe.

[0015] The effect achieved by the above components is to instantly blow air through the nozzle of the rake-type soot blower.

[0016] Preferably, a nozzle is fixedly connected to the other end of the rake rod spray pipe.

[0017] The effect achieved by the above components is that when the heated surface tubes are arranged in a staggered manner, the nozzles are staggered according to the angle of the tube gaps to ensure the best blowing effect.

[0018] Preferably, the nozzle is configured to be narrower at the front and wider at the back.

[0019] The effects achieved by the above components are as follows: the nozzle can be adjusted in angle, used vertically, and can also adopt a duckbill structure or a Laval structure. This design can make the airflow more concentrated and the blowing force greater. When the heated surface tubes are arranged in parallel, the lower part of the nozzle is arranged directly opposite the tube gap.

[0020] Preferably, the support frame serves as a fixing rod main tube.

[0021] The aforementioned components achieve the following effect: the support frame is used to fix the soot blower rake rod, ensuring its stable operation.

[0022] In summary:

[0023] In this invention, by setting the above-mentioned structure, a pulsed shock wave sootblower is used to replace the traditional steam sootblower. The nozzle angle is matched with the heat exchanger tube bundle arrangement, and the original continuous steam blowing is changed to intermittent shock wave blowing, making the blowing force more concentrated, more targeted, and the ash removal effect better. Since air is used instead of steam, the cost is greatly reduced, possibly only one-tenth or even one-twentieth of that of steam. At the same time, since steam is no longer used, the moisture content in the flue gas will not increase, and there is no negative impact on boiler operation. Using air instead of steam eliminates the problem of blow damage to the opposite side of the tubes, which can improve the soot blowing penetration and solve the problem of soot blowing obstruction in traditional staggered tubes. By using air-energy shock waves to replace traditional steam, and by reasonably adding a heat exchanger and a stepping air-energy shock wave soot blowing mechanism, the boiler thermal efficiency is significantly improved and the service life is extended. By optimizing the design and collaborative workflow of the heat exchanger and sootblower, the shortcomings of the prior art are solved. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the planar structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the main rake handle in this utility model;

[0027] Figure 4 In this utility model Figure 3 A partial structural diagram.

[0028] Legend: 1. Shock tank; 2. Motor; 3. Junction box; 4. Rake bar main pipe; 5. Rake bar nozzle; 6. Nozzle; 7. Support frame; 8. Electrical control box. Detailed Implementation

[0029] Reference Figures 1-4 As shown, this utility model provides a technical solution: a stepping pneumatic shock wave blowing mechanism, including a shock tank 1, a motor 2, a junction box 3, a rake rod main pipe 4, and a support frame 7.

[0030] The following is a detailed explanation of its overall setup and function.

[0031] In this implementation scheme: Shock tank 1 serves as the power air source, and an electrical control box 8 is electrically connected to the surface of shock tank 1 and motor 2. By setting up the above structure, the problem of insufficient air supply is solved. Using a large-capacity shock tank 1 ensures a sufficient air supply, effectively solving the problem of insufficient air supply in traditional sootblowers. Motor 2 drives the advance and retreat of the rake sootblower. The electrical control box 8 is a junction box, mainly used for wiring motor 2 and limit switches. When motor 2 starts, the rake sootblower advances forward; the advance length can be determined according to the experimental running time. Junction box 3 controls the operation of the sootblower, including advance and retreat operations. The rake sootblower advances one step after each spray, and after reaching the forward limit switch, the sootblower retreats, reversing one step after each spray, and stopping after reaching the retreat limit switch, completing one operating cycle. The rake rod main pipe 4 serves as the main structure of the sootblower, and is fixedly connected to shock tank 1. The rake rod main pipe 4 facilitates the transmission of airflow. The other end of the rake rod main pipe 4 is fixedly connected to the rake rod nozzle 5. It is instantly blown through the nozzle of the rake-type soot blower.

[0032] Specifically, a nozzle 6 is fixedly connected to the other end of the rake rod nozzle 5. The nozzle 6 is designed with a thinner front and a thicker rear. This design allows for a more concentrated airflow and greater blowing force. When the heated surface tubes are arranged in parallel, the lower part of the nozzle is positioned directly opposite the tube gap. The support frame 7 is used to fix the rake rod main pipe 4. The support frame 7 is used to fix the rake rod of the soot blower to ensure its stable operation.

[0033] Working principle: After the equipment starts running, the shock tank is inflated for 40 seconds (the inflation time can be adjusted according to actual needs), then released for 2 seconds. The air is then instantly sprayed through the nozzle of the rake-type sootblower, using high-pressure airflow to remove accumulated ash. The motor starts, and the rake-type sootblower advances forward. The advancing length can be determined according to the experimental running time. The rake-type sootblower advances one step after each spray, and after reaching the forward limit switch, it reverses, moving one step after each spray, and stops after reaching the reverse limit switch, completing one operating cycle. The nozzle adopts a structure that is thinner at the front and thicker at the back, with a duckbill-shaped nozzle at the outlet. This design allows for a more concentrated airflow and greater blowing force. When the heated surface tube... When the tubes are arranged in a straight line, the lower part of the nozzle is positioned directly opposite the tube gap. When the heated surface tubes are arranged in a staggered manner, the nozzles are staggered according to the angle of the tube gaps to ensure the best blowing effect. By setting up the above structure, the problem of insufficient air supply is solved. A large-capacity shock tank is used to ensure a sufficient air supply, effectively solving the problem of insufficient air supply in traditional soot blowers. Through reasonable nozzle design and blowing process, the soot blowing effect is significantly improved, which can effectively remove the accumulated ash inside the equipment. Equipped with a junction box, it realizes automated operation, improves the operating efficiency and reliability of the equipment. The nozzle arrangement can be adjusted according to the arrangement of the heated surface tubes, making it highly adaptable and widely applicable.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A stepping pneumatic shockwave soot blowing mechanism, characterized in that: It includes a shock tank (1), a motor (2), a junction box (3), a rake rod main pipe (4) and a support frame (7). The shock tank (1) serves as a power source, and an electrical control box (8) is electrically connected to the surface of the shock tank (1) and the motor (2).

2. The stepping air-energy shock wave soot blowing mechanism according to claim 1, characterized in that: The motor (2) is used to drive the advance and retraction of the rake-type soot blower.

3. The stepping air-energy shock wave soot blowing mechanism according to claim 1, characterized in that: The junction box (3) is used to control the operation of the soot blower, including operations such as advancing and retracting.

4. The stepping air-energy shock wave soot blowing mechanism according to claim 1, characterized in that: The rake rod main tube (4) serves as the main structure of the soot blower, and the rake rod main tube (4) is fixedly connected to the shock tank (1).

5. The stepping air-energy shock wave soot blowing mechanism according to claim 1, characterized in that: The other end of the rake rod main tube (4) is fixedly connected to the rake rod nozzle (5).

6. The stepping air-energy shock wave soot blowing mechanism according to claim 5, characterized in that: The other end of the rake nozzle (5) is fixedly connected to a nozzle (6).

7. A stepping air-energy shock wave soot blowing mechanism according to claim 6, characterized in that: The nozzle (6) is designed to be finer at the front and coarser at the back.

8. The stepping air-energy shock wave soot blowing mechanism according to claim 1, characterized in that: The support frame (7) is used to fix the rake bar main tube (4).

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