Multi-angle shock wave soot blower

Abstract

The utility model provides a multi-angle shock wave soot blower, which is characterized in that a hemispherical shell which is in transmission with a chain and a chain wheel through a rotary valve is arranged in a through-wall pipe to enable a jet orifice of the shock wave soot blower to rotate on a plane, a rotary joint is arranged at the other end of the through-wall pipe, and a hand wheel is mounted on the rotary joint. The through-wall pipe is rotated through the rotating connector so that the spraying plane of the spraying opening can rotate, the through-wall pipe is connected with the boiler wall through the ball bearing and the sealing sleeve, and the rotating connector is matched with the rotating handle to achieve the function that the shock wave soot blower can be adjusted in multiple angles in the boiler wall. Therefore, the shock wave soot blower can perform soot blowing on dead corners in the boiler. Besides, connection between the combustible gas pipeline and the shock wave tank and connection between the air pipeline and the shock wave tank are improved, a gas mixing chamber and a gas mixing fan are additionally arranged, and the problem that the shock wave soot blower is not high in soot blowing efficiency due to poor gas inlet is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shock wave soot blowing device technical field, specifically to a multi -angle adjustable shock wave soot blowing device. BACKGROUND

[0002] The shock wave soot blowing device, also called a gas pulse soot blower, is a device for removing the surface ash of the tail of a boiler through the action of impact energy, sound energy and heat energy. A high-energy igniter is used to ignite combustible gas in a special structure mixed ignition device, and an explosion is caused. The combustion gas behind the flame front is instantaneously raised to high pressure by the explosion, and a compression wave is formed in front of the flame front. When the flame compression wave passes through the gas guide pipe, it is continuously strengthened to form a stable shock wave. The shock wave enters the pulse generator and ignites the combustible gas inside. The explosion gas generates an impact wave instantaneously through the pulse generator and acts on the ash surface. The sound energy and kinetic energy of the explosion gas impact and accelerate the disturbance of the ash on the boiler, causing the ash to separate from the heating surface.

[0003] The existing shock wave soot blowing device has an action range of about 4 meters along the nozzle direction and a longitudinal radius of about 3 meters. It cannot be used for soot blowing work on the corners of the boiler. The utility model patent with publication number CN219656096U discloses an air shock wave soot blowing device with a rotating jet pipe. A multi-angle nozzle device is added to one end of the through-wall pipe. However, the electrical components are arranged in the jet port, and the shock wave generated each time is easily damaged by the explosion gas. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a multi-angle shock wave soot blowing device that can clean the accumulated ash in the dead corners of the boiler wall. The secondary purpose is to improve the gas mixing efficiency of the shock wave soot blowing device and to solve the problem of low shock wave soot blowing efficiency caused by uneven mixing of combustible gas and air.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A multi-angle shock wave soot blowing device includes a shock wave tank and a boiler wall. The top of the shock wave tank is connected to an air inlet valve group. An igniter is arranged inside the shock wave tank. A through-wall pipe is arranged through the boiler wall at the bottom of the shock wave tank. A rotary valve is arranged along the radial direction of the through-wall pipe at one end of the through-wall pipe close to the shock wave tank. A first sprocket is arranged in the through-wall pipe. A first shaft is arranged along the radial direction of the through-wall pipe at the other end of the through-wall pipe. A second sprocket is fixedly arranged on the first shaft. A hemispherical shell is fixedly arranged on the first shaft. The first sprocket and the second sprocket are connected by a chain.

[0007] Further, a rotary joint is arranged between the shock wave tank and the rotary valve.

[0008] Further, the through-wall pipe is connected with the boiler wall through a ball bearing, and a sealing sleeve made of graphene is arranged between the ball bearing and the through-wall pipe.

[0009] Further, one end of the rotary joint connected with the through-wall pipe extends outwardly to a hand wheel.

[0010] To realize the uniform mixing of combustible gas and air, the technical scheme provided by the utility model includes: the air inlet valve group includes a combustible gas pipeline and an air pipeline, and a gas mixing chamber is further arranged at the end of the combustible gas pipeline and the air pipeline, and a gas flow distribution plate is arranged in the gas mixing chamber.

[0011] Further, the gas flow distribution plate is in the shape of a spherical shell.

[0012] Further, a gas mixing fan is further arranged in the gas mixing chamber.

[0013] Further, the gas mixing fan is arranged eccentrically in the gas mixing chamber.

[0014] Further, the gas mixing fan includes a fan blade part and a second rotating shaft, and the fan blade part and the second rotating shaft are connected through a spherical surface,

[0015] Further, the second rotating shaft is grounded through a circuit.

[0016] Further, the gas mixing chamber is communicated with the shock wave tank through a check valve, and a flame arrester is further arranged in the shock wave tank.

[0017] The utility model has the advantages and beneficial effects that:

[0018] 1. The through-wall pipe of the shock wave soot blowing device is additionally provided with a mechanism of a rotary valve chain transmission end hemispherical shell, so that the shock wave soot blowing device can adjust the direction of the jetting port on a plane.

[0019] 2. A rotary joint is additionally provided, so that the shock wave soot blowing device can rotate on the plane, thereby realizing the multi-angle adjustment of the jetting port of the shock wave soot blowing device and more comprehensively cleaning the soot in the boiler.

[0020] 3. The gas mixing part of the shock wave soot blowing device is reformed, combustible gas and air are more uniformly introduced into the gas mixing chamber through a spherical gas flow distribution plate, a gas mixing fan is further arranged eccentrically in the gas mixing chamber, and the gas mixing fan can automatically rotate according to the gas pressure condition between the combustible gas and the air, so that the two kinds of gas are further uniformly mixed. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the utility model;

[0022] Figure 2is the amplification structure schematic view of the A place of the utility model;

[0023] Figure 3 is the amplification structure schematic view of the B place of the utility model;

[0024] Figure 4 is the structure schematic view of the hemispherical shell and the injection port of the utility model;

[0025] In the drawing,

[0026] 1-shock wave tank, 2-boiler wall, 3-inlet valve group, 4-wall pipe, 5-rotary valve, 6-first sprocket, 7-first rotating shaft, 8-second sprocket, 9-hemispherical shell, 10-chain, 11-rotary joint, 12-roller bearing, 13-sealing sleeve, 14-hand wheel, 15-combustible gas pipeline, 16-air pipeline, 17-gas mixing chamber, 18-air flow distribution plate, 19-gas mixing fan, 20-fan blade part, 21-second rotating shaft, 22-spherical surface, 23-grounding, 24-check valve, 25-fire damper. DETAILED DESCRIPTION

[0027] The specific embodiments of the utility model are further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0028] Embodiment

[0029] Please refer to Figures 1-2 、 Figure 4 A multi-angle shock wave soot blowing device, including shock wave tank 1 and boiler wall 2, the top of shock wave tank 1 is connected with inlet valve group 3, shock wave tank 1 inside is provided with igniter, the bottom of shock wave tank 1 is connected with wall pipe 4 through boiler wall 2, and the end close to shock wave tank 1 of wall pipe 4 is provided with rotary valve 5 along the radial direction of wall pipe 4, first sprocket 6 is fixedly assembled in rotary valve 5 in wall pipe 4, first rotating shaft 7 is provided with second sprocket 8 along the radial direction of wall pipe 4, and first rotating shaft 7 is fixedly provided with hemispherical shell 9, and first sprocket 6 and second sprocket 8 are connected through chain.In addition, rotary joint 11 is also arranged between shock wave tank 1 and rotary valve 5, and one end of rotary joint 11 connected with wall pipe 4 extends outwardly and is provided with hand wheel 14.Wall pipe 4 and boiler wall 2 are connected through roller bearing 12, and sealing sleeve 13 is also arranged between roller bearing 12 and wall pipe 4, and sealing sleeve 13 is preferably graphene material with self-lubricating and wear-resistant properties.Rotary valve 5 is preferably a rotary valve with damping effect.

[0030] Through the technical scheme, the rotating valve can drive the hemispherical shell to rotate along the first rotating shaft through the chain, and then adjust the jet angle of the shock wave soot blowing device. The rotating valve and the chain structure can make the jet port rotate in a plane range. The rotating joint 11 can cooperate with the rotating valve to adjust the jet port in a vertical range.

[0031] Please refer to Figure 1 and Figure 3 , the intake valve group 3 includes a combustible gas pipeline 15 and an air pipeline 16, and a mixing chamber 17 is further connected at the end of the combustible gas pipeline 15 and the air pipeline 16, and a gas flow distribution plate 18 is arranged in the mixing chamber 17. The shape of the gas flow distribution plate 18 is a hemispherical shell, which can make the gas in the pipeline uniformly enter the mixing chamber 17, avoid too much or too little gas in one of the pipelines entering the shock wave tank 1, and cause the gas to be unable to detonate or the detonation effect to be poor, thereby reducing the shock wave efficiency. A mixing fan 19 is further rotatably arranged in the mixing chamber 17, the mixing fan 19 includes a fan blade part 20 and a second rotating shaft 21, and the fan blade part 20 and the second rotating shaft 21 are rotatably connected through a spherical surface 22. The friction of the spherical surface connection is small, the second rotating shaft 21 is grounded through a circuit 23, and the accumulation of static electricity is avoided to generate an electric spark and bring safety hazards. The mixing fan 19 is rotated by the airflow impact when the gas pressures of the combustible gas pipeline 15 and the air pipeline 16 are different, and the mixing efficiency is improved. Optionally, the mixing fan 19 is eccentrically arranged in the mixing chamber 17, so that the mixing fan 19 can also be rotated by the airflow when the gas pressures of the combustible gas and the air are equal due to the eccentric arrangement, and the fan blade parts 20 on both sides are unbalanced by the airflow. The mixing chamber 17 is communicated with the shock wave tank 1 through a check valve 24, and a flame arrester 25 is further installed in the shock wave tank.

[0032] Working principle:

[0033] When the combustible gas and air are mixed in a certain proportion by the gas mixing chamber and enter the shock tank to reach a certain pressure (0.4-1.8 MPa), the igniter ignites to cause deflagration, the deflagration causes the volume of the combustible gas inside to increase, the instantaneous pressure rises rapidly, thereby generating a high-pressure gas flow, generating a shock wave, and the shock wave reaches the injection port through the wall-penetrating pipe and directly impacts the internal soot of the boiler wall. When the angle of the injection port needs to be adjusted, the angle of the hemispherical shell can be directly adjusted outside the boiler wall by adjusting the rotary valve through the chain and sprocket transmission, thereby adjusting the angle of the injection port in the vertical plane of the first rotating shaft, the rotary joint can rotate the entire wall-penetrating pipe, thereby rotating the angle plane of the injection port along the axis of the wall-penetrating pipe, and in the linkage of the wall-penetrating pipe and the hemispherical shell, the multi-angle injection function of the injection port can be further realized, thereby directly blowing the soot in the dead angle area of the boiler wall and improving the work efficiency of the soot blowing. The damping rotary valve can reduce the problem of loosening of the hemispherical shell caused by shock wave soot blowing vibration. Meanwhile, the wall-penetrating pipe and the boiler wall are rotatably connected through the ball bearing and the sealing sleeve, thereby improving the problem of wear of the wall-penetrating pipe caused by long-term rotation. In addition, the hemispherical airflow distribution plate and the eccentrically arranged gas mixing fan are installed in the air inlet valve group, and when the combustible gas pipeline and the air pipeline send gas, whether there is a pressure difference between the two or not, the eccentrically arranged gas mixing fan will be blown to mix with each other uniformly, thereby solving the problem of strong and weak shock waves emitted by the shock tank caused by uneven air inlet.

[0034] The above only describes the preferred embodiments of the present application, and it should be noted that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the technical principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A multi-angle shock wave soot blowing device, comprising a shock wave tank and a boiler wall, an air inlet valve group is connected to the top of the shock wave tank, an igniter is arranged in the shock wave tank, and a through-wall pipe penetrating through the boiler wall is connected to the bottom of the shock wave tank, characterized in that: The through-wall pipe is radially provided with a rotary valve at one end close to the shock tank, the rotary valve is provided with a first sprocket inside the through-wall pipe, the other end of the through-wall pipe is radially provided with a first rotating shaft, the first rotating shaft is fixedly provided with a second sprocket, the first rotating shaft is fixedly provided with a hemispherical shell, and the first sprocket and the second sprocket are connected through a chain.

2. The multi-angle shock sweeper of claim 1, wherein: A rotary joint is further arranged between the through-wall pipe and the rotary valve.

3. The multi-angle shock sweeper of claim 2, wherein: The through-wall pipe and the boiler wall are connected through a ball bearing, and a sealing sleeve is further arranged between the ball bearing and the through-wall pipe.

4. The multi-angle shock soot-blowing device of claim 2 or 3, wherein: One end of the rotary joint connected with the through-wall pipe extends outwardly and peripherally to a hand wheel.

5. The multi-angle shock sweeper of claim 1, wherein: The air inlet valve group comprises a combustible gas pipeline and an air pipeline, and a mixing chamber is further arranged at the ends of the combustible gas pipeline and the air pipeline; and a gas flow distribution plate is arranged in the mixing chamber.

6. The multi-angle shock sweeper of claim 5, wherein: The shape of the gas flow distribution plate comprises a spherical shell.

7. The multi-angle shock sweeper of claim 5 or 6, wherein: A gas mixing fan is further rotatably arranged in the mixing chamber.

8. The multi-angle shock sweeper of claim 7, wherein: The gas mixing fan is eccentrically arranged in the mixing chamber.

9. The multi-angle shockwave soot-blowing device of claim 7, wherein: The gas mixing fan comprises a fan blade part and a second rotating shaft, the fan blade part and the second rotating shaft are connected through a spherical surface, and the second rotating shaft is grounded through an electric circuit.

10. The multi-angle shock sweeper of claim 1, wherein: The mixing chamber is communicated with the shock tank through a check valve, and a flame arrester is further arranged in the shock tank.

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