Non-rigid transmission connection whistle type sound wave soot blower

Abstract

The utility model discloses a non-rigid transmission connection whistle type sound wave soot blower which comprises a sound wave modulator assembly, a driving motor and a base plate, the sound wave modulator assembly comprises an air cavity shell, a connecting rotating shaft, a moving ring, a bottom plate and an arc-shaped guide piece, and one side face of the air cavity shell is further provided with a hollow cylindrical connecting part; the arc-shaped guide piece is arranged on the bottom plate, the movable ring is movably arranged in the air cavity shell, and the connecting rotating shaft is connected with a rotating shaft of the driving motor in the mode that the gear is connected with the synchronous belt. According to the scheme, the driving motor and the sound wave modulator assembly are arranged in a split mode, and the driving motor operates independently in a space, so that when the driving motor or the sound wave modulator assembly is abnormal, maintenance is very convenient, the damaged assembly can be independently maintained, and the maintenance efficiency is improved. And in addition, the split type arrangement is also convenient for daily maintenance of the equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of rotary whistle type acoustic soot blowers, specifically a rotary whistle type acoustic soot blower with a non-rigid transmission connection. Background Technology

[0002] The rotary whistle-type sootblower is now widely used in industries such as power and petrochemicals. It boasts advanced technology, reliable performance, and continuous technological breakthroughs and innovations. This sootblower uses a wide-frequency adjustable sound source ranging from 100-600Hz, featuring long wavelengths, large amplitudes, slow energy attenuation, strong diffraction and reflection capabilities, and large vibration displacement amplitude. Using sootblowing, the sound waves can reach the entire space, generating reverberation within the furnace without leaving any dead zones, establishing a balanced energy field. Air and wall surfaces absorb little sound wave, resulting in a large effective cleaning area. It also avoids generating corrosive moisture, preventing corrosion and damage to the pipe surfaces. This is unparalleled by previous sootblowing equipment.

[0003] The rotary whistle-type acoustic soot blower mainly consists of an acoustic generator and an acoustic conduit. The acoustic generator includes an acoustic modulator and a variable frequency speed control motor. During operation, the variable frequency speed control motor drives the disc shaft inside the acoustic modulator to rotate, continuously cutting off the air supply channel. This repeated cycle creates airflow disturbance, thereby generating continuous high-intensity sound pressure level acoustic energy. Finally, this energy is transmitted to the working space through the acoustic conduit, achieving the acoustic soot blowing effect.

[0004] Chinese utility model patent application number CN201820904728.0 discloses a pneumatic swirling sound wave generator, including an air bladder with an inlet flange at its rear end. An internal motor is housed within the air bladder, and the output shaft of the motor passes through the front end of the air bladder, through a stationary ring, and connects to a rotating ring that mates with the stationary ring. The stationary ring has several through holes spaced along its circumference. The front end of the stationary ring is connected to an outlet flange. The rotating ring has several circular holes spaced along its circumference, each mateing with one of the through holes. Through the air bladder, the mating rotating and stationary rings, and the through holes on the stationary ring and the circular holes on the rotating ring, air is emitted from these three outlets, creating sound wave superposition. This effectively ensures operating pressure, significantly reduces sound attenuation, covers a narrow frequency range, lowers the frequency, increases sound power, and saves costs.

[0005] However, this solution has the following problems:

[0006] 1. An internal motor is installed inside the airbag. The output shaft of the internal motor passes through the front end of the airbag and then through a stationary ring to connect with a rotating ring that mates with the stationary ring. In this way, the motor that provides rotational power is built into the airbag. If the internal motor malfunctions, it must be removed from the airbag for repair, making the subsequent maintenance and repair of the equipment cumbersome.

[0007] 2. The connection between the output shaft of the built-in motor and the rotating ring is essentially a rigid transmission connection. Therefore, if the rotating ring is damaged, the two must be separated before repair or replacement can be performed. This leads to difficulties in later equipment maintenance. Summary of the Invention

[0008] (1) Technical problems solved

[0009] The technical problem to be solved by this utility model is the difficulty in repairing motors or rotating rings when they malfunction or are damaged in the prior art.

[0010] (2) Technical solution

[0011] To solve the above problems, this utility model provides the following technical solution:

[0012] A non-rigid transmission connection whistle-type acoustic soot blower includes an acoustic modulator assembly, a drive motor, and a base plate. The acoustic modulator assembly and the drive motor are fixedly disposed on both sides of the upper surface of the base plate, and the drive motor is used to provide power to the acoustic modulator assembly.

[0013] The acoustic modulator assembly includes a cavity shell, a connecting shaft, a rotating ring, a base plate, and an arc-shaped guide plate. A connecting portion with an internally hollow cylindrical shape is also provided on one side of the cavity shell. The connecting shaft is disposed in the connecting portion and connected to the connecting portion via a bearing. One end of the connecting shaft near the base plate is fixedly connected to the end face of the rotating ring near the connecting portion. The arc-shaped guide plate is disposed on the base plate. The rotating ring is movably disposed within the cavity shell and is located between the arc-shaped guide plate and the cavity shell. The connecting shaft is connected to the shaft of the driven motor via a gear and synchronous belt connection.

[0014] Furthermore, the base plate is provided with an air inlet, the side of the air chamber shell is provided with a flow hole, the axis of the air inlet is collinear with the axis of the moving ring, and the axis of the flow hole is collinear with the axis of the through hole on the arc-shaped guide plate.

[0015] Furthermore, the side of the moving ring is also provided with a vent hole for cutting the airflow.

[0016] Furthermore, the upper and lower sides of the vent are straight, and the left and right sides are curved inwards. There are multiple vents, which are evenly arranged on the moving ring.

[0017] Furthermore, the base plate is fixedly connected to the air chamber shell, and a sealing ring is provided between the air chamber shell and the base plate to provide a sealing function.

[0018] Furthermore, the drive motor is selected as a variable frequency motor.

[0019] Furthermore, the side of the arc-shaped guide plate closest to the base plate is fixedly connected to the side of the base plate, and a gap is left between the side of the arc-shaped guide plate closest to the connecting part and the moving ring to ensure that the moving ring can rotate.

[0020] (3) Beneficial effects

[0021] The beneficial effects of the utility model are:

[0022] 1. This solution separates the drive motor and the acoustic modulator assembly, allowing the drive motor to operate independently in a separate space. This makes it convenient to repair when the drive motor or acoustic modulator assembly malfunctions, allowing for individual repair of the damaged component. Furthermore, this separate design facilitates routine maintenance of the equipment.

[0023] 2. In this solution, the drive motor shaft and the connecting shaft are connected by a synchronous belt and gears. By setting gears of different sizes on both the drive motor shaft and the connecting shaft, the required transmission ratio can be easily achieved. That is, the cooperation between the large and small gears enables the low speed of the input shaft to be converted to the high speed of the output shaft, thus achieving energy saving. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a cross-sectional view of the present invention;

[0026] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the structure of the moving ring of this utility model;

[0028] Figure 5 This is a schematic diagram showing the placement of the arc-shaped guide plate of this utility model.

[0029] In the diagram: 1-Acoustic modulator assembly, 2-Drive motor, 3-Base plate;

[0030] 101-Air chamber shell, 102-Connecting shaft, 103-Moving ring, 104-Base plate, 105-Arc-shaped guide plate, 106-Connecting part, 107-Air inlet, 108-Flow hole, 109-Ventilation hole. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Please see Figure 1-Figure 5 The image shows a non-rigid transmission connection whistle-type soot blower, comprising a sonic modulator assembly 1, a drive motor 2, and a base plate 3. The drive motor 2 is a variable frequency motor, which can drive the sonic modulator assembly 1 to operate at different power levels, thereby achieving the purpose of adjusting the frequency of the sonic waves generated by the sonic modulator assembly 1.

[0034] The acoustic modulator assembly 1 and the drive motor 2 are fixedly mounted on both sides of the upper surface of the base plate 3. The drive motor 2 is used to provide power to the acoustic modulator assembly 1.

[0035] The acoustic modulator assembly 1 includes an air cavity housing 101, a connecting shaft 102, a rotating ring 103, a base plate 104, and an arc-shaped guide plate 105.

[0036] To enable the rotating ring 103 to rotate, it is connected to the connecting shaft 102. During connection, the end of the connecting shaft 102 near the base plate 104 is fixedly connected to the end face of the rotating ring 103 near the connecting part 106. The base plate 104 is fixedly connected to the air chamber shell 101, and a sealing ring is provided between the air chamber shell 101 and the base plate 104 for sealing. Furthermore, to ensure the strength of the connection, the rotating ring 103 and the connecting shaft 102 are manufactured using a fixed connection or integral molding method.

[0037] In order to enable the connecting shaft to rotate at high speed in the air chamber housing 101, a connecting part 106 in the shape of an internally hollow cylinder is provided on one side of the air chamber housing 101. The connecting shaft 102 is disposed in the connecting part 106 and is connected to the connecting part 106 through a bearing.

[0038] To facilitate the delivery of gas into the rotating ring 103 by external equipment such as air compressors, an air inlet 107 is provided on the base plate 104, and the axis of the air inlet 107 is collinear with the axis of the rotating ring 103.

[0039] To allow the airflow to cut and generate sound waves, an arc-shaped guide plate 105 with a through hole is provided on the base plate 104 to guide the gas flow. The side of the arc-shaped guide plate 105 near the base plate 104 is fixedly connected to the side of the base plate 104, and a gap is left between the side of the arc-shaped guide plate 105 near the connecting part 106 and the moving ring 103 to ensure that the moving ring 103 can rotate.

[0040] In order to achieve high-frequency intermittent gas cutting while the gas flows out from the arc-shaped guide plate 105, a vent hole 109 is provided on the rotating ring 103. The upper and lower sides of the vent hole 109 are straight, and the left and right sides are curved inward. There are multiple vent holes 109, which are evenly arranged on the rotating ring 103 to increase the efficiency of gas cutting.

[0041] To allow the sound waves generated after cutting to be transmitted to external equipment, a flow hole 108 is provided on the side of the air chamber housing 101. The axis of the flow hole 108 is collinear with the axis of the through hole on the arc-shaped guide plate 105. The flow hole 108 is connected to external equipment that generates sound waves.

[0042] The arc-shaped guide plate 105 is disposed on the base plate 104, the rotating ring 103 is movably disposed in the air chamber shell 101, and the rotating ring 103 is disposed between the arc-shaped guide plate 105 and the air chamber shell 101. The connecting shaft 102 is connected to the shaft of the driven motor 2 through a gear and synchronous belt connection to provide rotational power.

[0043] Working principle:

[0044] First, the air inlet 107 of this device is connected to an external air supply device, continuously supplying gas to the moving ring 103 in the air chamber housing 101. The flow hole 108 is connected to an external sound amplification device, amplifying the sound waves generated by the sound wave modulator assembly 1. During operation, the drive motor 1 is connected to the connecting shaft 102 via a gear and synchronous belt connection, allowing the connecting shaft 102 to obtain rotational power, thereby driving the moving ring 103 to rotate at high speed. During the high-speed rotation of the moving ring 103, the gas at the moving ring 103 continuously flows from the through hole on the arc-shaped guide plate 105 towards the flow hole 108. At the same time, the moving ring 103 rotates at high speed. When the vent 109 begins to rotate to the position of the through hole on the arc-shaped guide plate 105, the gas flows to the vent 109 position, and the vent 109 cuts the gas to generate sound waves. The sound waves are transmitted to the external sound wave amplification device through the flow hole 108, completing the modulation of the sound waves. The drive motor 2 is a variable frequency motor, and the frequency of the sound wave can be adjusted by modifying the speed of the drive motor 2.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A whistle-type acoustic soot blower with a non-rigid transmission connection, characterized in that: The acoustic modulator assembly (1), the drive motor (2), and the base plate (3) are fixedly disposed on both sides of the upper surface of the base plate (3). The drive motor (2) is used to provide power to the acoustic modulator assembly (1). The acoustic modulator assembly (1) includes a cavity shell (101), a connecting shaft (102), a rotating ring (103), a base plate (104), and an arc-shaped guide plate (105) with a through hole. A connecting portion (106) in the shape of a hollow cylinder is also provided on one side of the cavity shell (101). The connecting shaft (102) is disposed in the connecting portion (106) and is connected to the connecting portion (106) via a bearing. The connecting shaft (102) is located near the base plate. One end of (104) is fixedly connected to one end face of the moving ring (103) near the connecting part (106). The arc-shaped guide plate (105) is disposed on the base plate (104). The moving ring (103) is movably disposed in the air chamber shell (101). The moving ring (103) is disposed between the arc-shaped guide plate (105) and the air chamber shell (101). The connecting shaft (102) is connected to the shaft of the driven motor (2) through a gear and synchronous belt connection.

2. The rotary whistle type soot blower with non-rigid transmission connection according to claim 1, characterized in that: The base plate (104) is provided with an air inlet (107), and the side of the air chamber shell (101) is provided with a flow hole (108). The axis of the air inlet (107) is collinear with the axis of the moving ring (103), and the axis of the flow hole (108) is collinear with the axis of the through hole on the arc-shaped guide plate (105).

3. The rotary whistle-type soot blower with a non-rigid transmission connection according to claim 1, characterized in that: The moving ring (103) is also provided with a vent (109) on its side for cutting the airflow.

4. The rotary whistle type soot blower with non-rigid transmission connection according to claim 3, characterized in that: The upper and lower sides of the vent (109) are straight, and the left and right sides are curved inward. There are multiple vents (109) evenly arranged on the moving ring (103).

5. A whistle-type soot blower with a non-rigid transmission connection according to claim 1, characterized in that: The base plate (104) is fixedly connected to the air chamber shell (101), and a sealing ring is provided between the air chamber shell (101) and the base plate (104) to provide a sealing function.

6. A whistle-type soot blower with a non-rigid transmission connection according to claim 1, characterized in that: The drive motor (2) is a variable frequency motor.

7. A whistle-type soot blower with a non-rigid transmission connection according to claim 1, characterized in that: The arc-shaped guide plate (105) is fixedly connected to the side of the base plate (104) on the side near the base plate (104). A gap is left between the arc-shaped guide plate (105) and the moving ring (103) on the side near the connecting part (106) to ensure that the moving ring (103) can rotate.

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